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144 results about "Sodium methacrylate" patented technology
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Sodium methacrylate had no effect on the amplitude of the cmpd action potential of desheathed amphibian sciatic nerve and produced no hyperpolarization of the resting potential at concn greater or equal to 0.10 mmol.
Method of dewatering thin stillage processing streams
InactiveUS20060006116A1Improve agglomerationAbility to withstandBy-product recoveryWater treatment parameter controlAcryditeSodium methacrylate
A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective coagulating and flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and coagulated and flocculated solids; and separating the water from the coagulated and flocculated solids using a dewatering device.
Owner:NALCO CO
Method of dewatering thin stillage processing streams
ActiveUS7497955B2Improve agglomerationAbility to withstandWater treatment parameter controlWater treatment compoundsSodium methacrylateSodium salt
A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and flocculated solids; and separating the water from the flocculated solids using a dewatering device.
Owner:ECOLAB USA INC
Method of dewatering grain stillage solids
ActiveUS20050079270A1Improve throughputShorten the timeBy-product recoveryFood processingAcryditeSodium methacrylate
A method of dewatering corn stillage solids comprising adding to the solids an effective coagulating and flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and coagulated and flocculated solids; and separating the water from the coagulated and flocculated solids using a dewatering device.
Owner:ECOLAB USA INC
Method of dewatering thin stillage processing streams
ActiveUS20070210007A1Improve agglomerationAbility to withstandWater treatment parameter controlWater treatment compoundsAcryditeSodium methacrylate
A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and flocculated solids; and separating the water from the flocculated solids using a dewatering device.
Owner:ECOLAB USA INC
Method of dewatering grain stillage solids
ActiveUS7566469B2Improve dehydration effectSmall apertureBy-product recoveryFood processingSodium methacrylateSodium salt
A method of dewatering corn stillage solids comprising adding to the solids an effective coagulating and flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and coagulated and flocculated solids; and separating the water from the coagulated and flocculated solids using a dewatering device.
Owner:ECOLAB USA INC
Polyamide resin composition with high metal texture and preparation method thereof
The invention relates to an aesthetic polyamide resin composition with high metal texture. The aesthetic polyamide resin composition is composed of the following components: 70-95 parts of polyamide (PA), 0-5 parts of auxiliary agent and 5.6-50 parts of special effect master-batch. The special effect master-batch is composed of the following components: 5-30 parts of polymethyl methacrylate grafted maleic anhydride / styrene (PMMA-g-MAH / St), 0.5-18 parts of special effect toner and 0.1-2 parts of additive. The additive is a dibutyltin maleate-methyl methacrylate-sodium methacrylate copolymer. The invention further provides a preparation method of the abovementioned composition. Compared with the prior art, a nylon material for a free-spraying aesthetic plastic is modified by using a brand-new technical scheme to obtain the aesthetic-texture polyamide composition with high metal texture, good mechanical property and surface property.
Owner:SHANGHAI KUMHO SUNNY PLASTICS
Treatment method of methacrylate or acrylate industrial wastewater
ActiveCN101786742AEmission reductionMultistage water/sewage treatmentNature of treatment waterUltrafiltrationReducing agent
The invention discloses a treatment method of methacrylate or acrylate industrial wastewater. The method comprises the following steps: adjusting the pH value of methacrylate or acrylate industrial wastewater to 6-8, ensuring the wastewater to pass through an activated carbon layer for filtering and pretreatment, adding chain transfer agent in the pretreated wastewater, stirring to dissolve solids, heating to 40-90 DEG C; dropping an aqueous solution dissolved with initiator, keeping temperature for 1-10 hours to perform polymerization reaction; cooling the reacted wastewater to the room temperature, and passing through a nanofiltration membrane and / or ultrafiltration membrane separating component to remove partial water and small molecule salts and obtain a sodium polymethacrylate or sodium polyacrylate aqueous solution. By using the method of the invention, the wastewater discharge is reduced during the production process of methacrylate or acrylate; the sodium methacrylate or sodium acrylate in wastewater is recycled, and the byproduct low molecular weight sodium polymethacrylate or sodium polyacrylate aqueous solution can be used as the dispersant, antisludging agent and water reducing agent of cement.
Owner:GUANGDONG RITOP FINE CHEM
Self-adhesive quick-drying sublimation transfer printing digital paper
ActiveCN104553432AAvoid combiningGood sublimation effectDuplicating/marking methodsSynthetic resin layered productsPolyvinyl alcoholEngineering
The invention relates to the technical field of sublimation transfer printing, discloses self-adhesive quick-drying sublimation transfer printing digital paper. The paper includes, from the bottom to the top, a base material sheet (1), a hydrophobic layer (2), a water-absorbing layer (3), an ink-absorbing layer (4) and a net-shaped surface layer (5), wherein the water-absorbing layer (3) includes interspace holes and is made of acrylic acid-2-acrylamide-2-sodium methacrylate copolymer; the net-shaped surface layer (5) is prepared from, in parts by weight, 25-45% of polyvinyl alcohol-vinyl acetate copolymer and 55-75% of sodium carboxymethyl cellulose; holes are formed in the hydrophilic end of the water-absorbing layer, so that the water contained in the ink can be adsorbed into the holes, and the beneficial effect that the ink can dry quickly after being transferred to a medium material is achieved. According to the invention, the net-shaped surface layer (5) structure facilitates quick absorption of the ink during the printing process; during the transferring process, the net-shaped surface layer can realize maximized adhesion to the medium material; the technical problems that the pattern is blurred or overlapped with another because of easy displacement during the printing ink absorption and transferring processes are solved.
Owner:杭州华大海天科技股份有限公司
High wear-resistant low-smoke halogen-free irradiation crosslinking sheathing material and preparation method thereof
ActiveCN102731897AImprove flame retardant performanceImprove wear resistancePlastic/resin/waxes insulatorsAluminium hydroxideWear resistant
The invention discloses a high wear-resistant low-smoke halogen-free irradiation crosslinking sheathing material and a preparation method thereof. The high wear-resistant low-smoke halogen-free irradiation crosslinking sheathing material is prepared from the following components in parts by weight: 20-40 parts of ethylene-vinyl acetate copolymer, 1-10 parts of modified ultra-high molecular weight polyethylene, 1-10 parts of ethylene-methacrylic acid sodium salt copolymer, 40-60 parts of aluminum hydroxide, 4-8 parts of carbon black, 1-5 parts of compatilizer, 0.3-0.9 parts of antioxygen, 0.4-1.0 parts of lubricant and 0.5-2 parts of silicone powder. The product has excellent wear resistance and low temperature resistance, and can pass a wear-resistant test.
Owner:JIANGSU DASHENG POLYMER
Hydrophilic lubricating coating for medical device and preparation method of hydrophilic lubricating coating
ActiveCN110819183AHas antibacterial propertiesImprove hydrophilic abilitySurgeryPharmaceutical delivery mechanismMaterials scienceMedical treatment
The invention provides a hydrophilic lubricating coating for a medical device and a preparation method of the hydrophilic lubricating coating. The preparation method comprises the following steps: (1)dissolving a monomer, a silane coupling agent and an initiator in water to form a mixed solution, and carrying out free radical polymerization reaction under ultraviolet irradiation to obtain a hydrogel precursor solution for preparing the hydrophilic lubricating coating; wherein the monomer is selected from one or a combination of at least two of acrylic acid, methacrylic acid, sodium acrylate and sodium methacrylate; (2) coating the surface of the medical device with the hydrogel precursor solution obtained in the step (1); and (3) heating and curing the medical device coated with the hydrogel precursor solution obtained in the step (2) to form the hydrophilic lubricating coating. The hydrophilic lubricating coating provided by the invention can form a firm covalent bond with the medical device, so that the surface of the medical device has super-lubricating and hydrophilic characteristics, and the characteristics are stable and long-acting; the preparation method is simple and easyto implement, the coating does not need to be prepared in situ on device, and the technological process is simplified.
Owner:苏州凝智新材料发展有限公司
High-temperature resistant poly(ester-ether) polymer antistatic agent and preparation method and application of poly(ester-ether) polymer antistatic agent
InactiveCN102051156AImprove temperature resistanceProduction environmental protectionOther chemical processesPolyesterPolymer science
The invention belongs to the polymer material field and in particular to a poly(ester-ether) polymer antistatic agent. The polymer antistatic agent mainly comprises the following raw materials in parts by weight: 100 parts of poly(ethylene glycol) methyl ether methacrylate, 30-250 parts of methylmethacrylate, 2-50 parts of the mixture of sodium methacrylate or methacrylic acid and sodium carbonate, 1-30 parts of sodium silicate and 0.1-5 parts of azodiisobutyronitrile (AIBN). In the preparation method in the invention, unstable and poisonous sodium perchlorate is not adopted, thus the production process becomes more environmentally friendly. In addition, by adopting the preparation method, the temperature resistance characteristics of the product can be increased and the application rangecan be expanded; and the polymer antistatic agent can be used in the antistatic materials such as polyethylene terephthalate (PET), polybutyleneterephthalate (PA), polybutylene (PB), poly ethylene (PE), propene polymer (PP), poly styrene (PS), acrylonitrile butadiene styreneacrylonitrile butadiene styrene (ABS), polyvinyl chloride (PVC) and polyethylene (PLA). In the preparation method in the invention, the solid antistatic agent suitable for granulation can be obtained without adding coupling agent, thus the cost is lower, the electrical property is better and the surface resistivity is up to 106-107 omega / sq.
Owner:金华市东聚新材料有限公司
Method for preparing polymer retanning fat-liquoring agent and retanning fat-liquoring agent
InactiveCN101831024AMeet the protection requirementsWith retanningTanning treatmentLeather impregnationOrganic solventSodium methacrylate
The invention discloses a method for preparing a polymer retanning fat-liquoring agent and the retanning fat-liquoring agent. The preparation method comprises the following steps of: preparing long-chain fatty alcohol maleic acid monoester by adopting C8-C18 long-chain fatty alcohol and maleic anhydride, preparing the long-chain fatty alcohol maleic acid monoester into long-chain fatty alcohol maleic acid monoester salt, and then dripping methacrylic acid octadecyl ester, aqueous solution of sodium methacrylate and aqueous solution of initiator into the long-chain fatty alcohol maleic acid monoester salt to perform aqueous emulsion copolymerization to form the polymer retanning fat-liquoring agent. The polymer retanning fat-liquoring agent contains terpolymer of the methacrylic acid octadecyl ester, the long-chain fatty alcohol maleic acid monoester and the methacrylic acid. The preparation method saves an organic solvent during synthesizing the retanning fat-liquoring agent so as to reduce environmental pollution, and meanwhile overcomes the defect of insufficient fat-liquoring performance of a long-chain fatty alcohol maleic acid monoester and methacrylic acid copolymer by introducing oleophilic methacrylic acid octadecyl ester monomer into the polymer.
Owner:甘肃宏良皮业股份有限公司
Self-adhesive quick-drying thermal sublimation transfer printing digital cloth
ActiveCN104553431AWith stretchable strengthSolve the technical problem of low recycling rateThermographyPolyvinyl alcoholPrinting ink
The invention relates to the technical field of thermal sublimation transfer printing, and discloses a piece of self-adhesive quick-drying thermal sublimation transfer printing digital cloth. The digital cloth sequentially comprises a piece of digital substrate cloth, an adhesive water-pervious layer, a water-absorbing layer, an ink-absorbing layer and a mesh-shaped surface layer from bottom to top, wherein the water-absorbing layer comprises mesopores and is an acrylic acid-2-acrylamide-2-sodium methacrylate copolymer; the mesh-shaped surface layer comprises a polyvinyl alcohol-vinyl acetate copolymer and sodium carboxymethyl cellulose; the digital substrate cloth has better strength than a paper substrate material, can be repeatedly used, the production cost is saved, and meanwhile, the production efficiency is improved; holes are formed in the hydrophilic end of the water-absorbing layer, so that moisture in ink is adsorbed into the holes, and the ink transferred to a dielectric material is quickly dried. The structure of the mesh-shaped surface layer facilitates quick absorbing of the ink in the printing process; in the transfer printing process, maximum adhesion of the mesh-shaped surface layer and the dielectric material can be realized, and the technical problem of double pattern imaging caused by the fact that the printing ink is prone to moving during absorption and transfer printing is solved.
Owner:杭州华大海天科技股份有限公司
Acid-proof latex paint
InactiveCN107629565AImprove acid resistanceQuality improvementAnti-corrosive paintsEmulsion paintsPolystyrenePolyethylene glycol
The invention relates to an acid-proof latex paint, belonging to the technical field of coating. The latex paint contains the following components: polystyrene latex, polyvinyl acetate-ethylene emulsion, dispersing agent (sodium polymethacrylate), FCCHA, preservative (sodium pentachlorophenate), polyethylene glycol, polyurethane, hexanediol, diethylene glycol, pyrethroid, deionized water, titaniumdioxide and wollastonite in powder. The quality of the latex paint is improved, and the acid-proof property is better improved, so that the latex paint can completely resist the erosion of acidic substances of acid rain and the like.
Owner:王渊明
Method for preparing polycarboxylic acid high-efficiency slushing agent
The invention discloses a method for preparing a polycarboxylic acid high-efficiency slushing agent which belongs to the field of chemical building materials. The polycarboxylic acid high-efficiency slushing agent is prepared from the materials of acrylic acid, sodium methacrylate, maleic anhydride, polyoxypropylene ether sulfate, potassium peroxodisulfate, sodium hydroxide and deionized water in the assistance of a certain process conditions. The preparation method has the advantages that the production process is simple, and the product is non-toxic and suitable for various cements; and the preparation method has the characteristics that the raw material separation can be protected, so that concrete with consistent quality is manufactured; 2, high availability in a long time is kept; 3, slurry is reduced, and the deep precipitation of concrete is reduced; and 4, the polycarboxylic acid high-efficiency slushing agent has good slushing effect, collapse resistance, high water-reducing rate and high concrete workability.
Owner:陈银凤
Flexible moisture-resistant water-based anticorrosive paint for bamboo-weaved rattan chairs
InactiveCN104356806AGood flexibilityAccelerated corrosionAnti-corrosive paintsPolyurea/polyurethane coatingsWater basedPliability
The invention relates to the field of anticorrosive paint and in particular relates to flexible moisture-resistant water-based anticorrosive paint for bamboo-weaved rattan chairs. The anticorrosive paint is prepared from the following raw materials in parts by weight: 2-3 parts of sodium methacrylate, 0.01-0.02 part of disodium stannous citrate, 4-5 parts of aminosilane, 20-40 parts of acrylic emulsion with the solid content of 40%-50%, 18-24 parts of a waterborne polyurethane dispersoid with the solid content of 30%-40%, 0.5-0.8 part of a wetting agent, 1-2 parts of coco fatty acid diethanol amide, 12-18 parts of de-ionized water and 1-2 parts of an assistant. According to the anticorrosive paint, the acrylic emulsion is compounded with the polyurethane dispersoid, and aminosilane is added for modification, so that the paint is excellent in flexibility and environmental corrosion resistance, and a paint film is good in adhesion and resistant to heat and water; in combination with the materials such as the assistant with auxiliary film forming and drying effects, the wetting agent and disodium stannous citrate, the paint forms the dense and bright paint film on the surface of a bamboo material and is free of bad odor, environment-friendly and safe, and the mildew and rot phenomena of the rattan chairs are effectively improved.
Owner:ANHUI KONGYUAN HOUSEHOLD CRAFTS
Heparan polyethersulfone hollow fiber membrane and preparation method and applications thereof
ActiveCN105013355APrevent elutionGood film formingSemi-permeable membranesHaemofiltrationPolymer scienceSpinning
The present invention discloses a heparan polyethersulfone hollow fiber membrane and a preparation method and applications thereof. The material components of the hollow fiber membrane comprise polyethersulfone used as a matrix component and a heparan modified component, the structure of the membrane material is a semi-interpenetrating network structure of the heparan modified component and the matrix component, the heparan modified component is selected from sodium p-styrenesulfonate and sodium methacrylate, and the number-average molecular weight of the polyethersulfone is 20000-60000. The preparation method for the hollow fiber membrane comprises: dissolving polyethersulfone in a solvent, then adding a heparan modified component, and performing dissolving thoroughly to prepare a spinning solution; the spinning solution being extruded through two concentric round spinneret holes by a pump, and entering into a water bath with a temperature of 20-50 DEG C for a solidification and shaping to obtain a hollow fiber membrane; and placing the hollow fiber membrane in water with a temperature of 50-60 DEG C for soaking and boiling so as to remove the residual solvent on the hollow fiber membrane. The polyethersulfone hollow fiber membrane provided by the present invention is greatly improved in hydrophilicity, contamination resistance, and self-anticoagulation.
Owner:SICHUAN UNIV
Early-strength polycarboxylate superplasticizer, and preparation method and application thereof
The invention discloses an early-strength polycarboxylate superplasticizer, and a preparation method and application thereof. The early-strength polycarboxylate superplasticizer comprises the following components: polycarboxylate superplasticizer mother liquor, early-strength components, a defoaming agent, an accelerator and a fluosilicate; the early strength components comprise an organic early strength component and an inorganic early strength component, and the mass ratio of the organic early strength component to the inorganic early strength component is 1:(0.8-1.2); and the polycarboxylate superplasticizer mother liquor comprises the following raw materials in parts by weight: 20 to 45 parts of methoxy polyethylene glycol, 15 to 20 parts of pyromellitic dianhydride, 5 to 14 parts of sodium methacrylate sulfonate, 15 to 20 parts of p-toluenesulfonic acid, 35 to 40 parts of deionized water, 1 to 5 parts of a polymerization inhibitor, 2.5 to 5 parts of an initiator and 1 to 3 parts of a pH regulator. The early-strength polycarboxylate superplasticizer has the advantages that the early strength of concrete can be improved, later strength of the concrete is not affected, and frostresistance of the concrete is improved.
Owner:重庆腾治科技有限公司
Polycarboxylic acid water reducing agent with narrow molecular weight distribution and preparation method thereof
PendingCN110407985APromote circulationSpeed up heat transferChemical/physical/physico-chemical stationary reactorsPolymer scienceControllability
The invention discloses a polycarboxylic acid water reducing agent with narrow molecular weight distribution and a preparation method thereof, belonging to the technical field of slump retaining agentpreparation. The polycarboxylic acid water reducing agent with narrow molecular weight distribution and the preparation method thereof realize that the molecular weight distribution and controllability of the obtained polycarboxylic acid high-efficiency water reducing agent are greatly improved. After propyl polyoxyethylene ether is mixed with a water-soluble initiator and a water-soluble activechain transfer agent, the obtained molecular weight distribution is narrower, and the dispersibility of the product is better. At the same time, sodium methacrylate sulfonate and modified acrylate compounds are added to facilitate improving of the early strength, slump retention, reinforcement and other properties of the prepared polycarboxylic acid water reducing agent; moreover, a heat preservation interlayer with an automatic regulation function is arranged in a reaction kettle, is beneficial to realizing the conversion of heat transfer and cold transfer in the heat preservation interlayer,improving the lifting sensitivity of the temperature in the reaction kettle, eliminating the need for manual temperature regulation, and effectively avoiding the influence on the preparation of the polycarboxylic acid water reducing agent caused by large temperature control difficulty.
Owner:GUANGZHOU JIANSHENG BUILDING MATERIALS CO LTD
Methyl acrylate metal salt-intercalated and modified kaolin as well as preparation method thereof
The invention discloses methyl acrylate metal salt-intercalated and modified kaolin as well as a preparation method thereof, wherein the preparation method comprises the following steps: (1) pre-treatment of kaolin: the kaolin is dispersed in an N, N- dimethyl formamide (DFM) solvent, ultrasonically treated for about 2 hours at the constant temperature of 60 DEG C to obtain milk white kaolin dispersion liquid; (2) preparation of kaolin suspension liquid: the kaolin dispersion liquid obtained in the step (1) is centrifuged and separated at a high speed to remove the N, N- dimethyl formamide (DFM) solvent, and dried for 12 hours in vacuum to obtain a white kaolin stable phase; and then, the obtained kaolin stable phase is treated for 2-6 hours at 500 DEG C-650 DEG C in a muffle furnace, dispersed in an organic solvent and ultrasonically treated for 0.5 hour-3hours to obtain uniformly dispersed kaolin suspension liquid; and (3) preparation of methyl acrylate metal salt kaolin by intercalation and modification: wherein metal chloride aqueous liquor is added into the kaolin suspension liquid obtained in the step (2), ultrasonically treated for 1 hour-5 hours under power of 160W-400W, dropwise added with methyl sodium acrylate liquor in the suspension liquid, and uniformly stirred; and the solvent is evaporated and removed under 120 DEG C to obtain white methyl acrylate metal salt-intercalated and modified kaolin powder.
Owner:JIANGSU QIXIANG HIGH NEW MATERIAL
Rapid microwave preparation method of glycidyl (meth)acrylate
The invention provides a rapid microwave preparation method of glycidyl (meth)acrylate. The method is characterized in that (meth)acrylic acid, sodium carbonate or sodium hydroxide, and epichlorohydrin are used as raw materials. The preparation method comprises the following steps: preparing sodium (meth)acrylate, performing microwave vacuum drying on the sodium salt; performing a phase transfer catalytic reaction on sodium salt and epichlorohydrin under microwave irradiation, adding a polymerization inhibitor and a phase transfer catalyst in the system and reacting for 14 minutes. Through using the preparation method, the product conversion rate is up to more than 95%; compared with the traditional method, the time is reduced by about ten times; by adopting the method, the reaction rate of the product can be increased and the production period can be shortened; and the method is extremely high in industrial application value.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
Preparation method of hyperbranched zwitterionic polyacrylamide and application of hyperbranched zwitterionic polyacrylamide in oilfield exploitation
ActiveCN110105494AImprove salt resistanceImprove shear resistanceDrilling compositionDiethyl etherSolvent
The invention discloses a preparation method of hyperbranched zwitterionic polyacrylamide and application of the hyperbranched zwitterionic polyacrylamide in oilfield exploitation. The preparation method comprises the following steps that S1, materials are prepared by mole; S2, 0.05-0.2 part of 4-dimethylaminopyridine and 0.01-0.05 part of dicyclohexyl carbodiimide are dissolved in 1-2 parts of diethyl ether to prepare a composite catalyst; S3, 2-3 parts of a cyclohexanol branching agent and 16-24 parts of ethylenic-bond-type unsaturated anionic monomers react with each other at 70-80 DEG C for 2-3 hours under the function of the catalyst; S4, 40-60 parts of acrylamide monomers, 6-12 parts of sodium methacrylate monomers, 10-18 parts of ethylenic-bond-type unsaturated cationic monomers andan initiator are added into the first reaction solution, and a polymerization reaction is carried out at 45-70 DEG C for 4-10 hours; S5, 2-6 parts of tetrabutyl titanate is added, the pH is adjustedto be 5.0, hydrolysis is carried out at 65-85 DEG C for 1-2 hours, and overnight standing, neutralization and drying are conducted. According to the method, with cyclohexanol as a hexahydroxy parent nucleus, the spherical polyacrylamide with a three-dimensional stereoscopic multi-arm compact structure is synthesized, the salt resistance and shear resistance are obviously improved, the molecular weight is high, and the polyacrylamide is easily dissolved in various solvents.
Owner:ANHUI TIANRUN CHEM CO LTD
Aqueous softener
InactiveCN104891686AGuarantee the vividness of dyeingFully softenedTreatment using complexing/solubilising chemicalsPyrophosphateFatty alcohol
The invention discloses an aqueous softener which comprises, by weight, 20-25 parts of sodium tripolyphosphate, 15-20 parts of sodium dihydrogen phosphate, 15-20 parts sodium pyrophosphate, 10-15 parts of citric acid, 10-12 parts of dimethyl ethanolamine, 8-10 parts of fatty alcohol polyoxyethylene ether, 10-12 parts of monoethanolamine, 8-10 parts of sodium methacrylate, 10-15 parts of potassium polymetaphosphate, 8-10 parts of rosin resin and 10-12 parts of phenolic resin. The aqueous softener has the advantages that the softener is used for printing and dyeing fabric and clothing materials in the textile industry, hard water can be softened sufficiently, clothing material dying brightness is well guaranteed during printing and dyeing, and standard printing and dyeing is achieved.
Owner:梁胜光
Rapid cooling and curing 3D printing material and preparation method thereof
ActiveCN110615979AShorten molding cycleFast cooling and solidificationAdditive manufacturing apparatusElastomerAntioxidant
The invention discloses a rapid cooling and curing 3D printing material and a preparation method thereof, and belongs to the technical field of 3D printing. The 3D printing material is prepared from the following raw material components in parts by mass: 70 to 95 parts of polycaprolactone, 2 to 20 parts of elastomer, 1 to 6 parts of ionization reagent, 1 to 2 parts of nucleating agent and 1 to 2 parts of antioxidant, and the ionization reagent is at least one of sodium acrylate, calcium benzenesulfonate, calcium hydroxide, sodium toluenesulfonate or ethylene-sodium methacrylate. According to the invention, polycaprolactone is subjected to modification treatment by adopting an ionization reagent, so that the melt index of the prepared printing material is reduced, and the problem of hand sticking is avoided under the condition of meeting proper flowability. The 3D printing material can be well applied to the fields of 3D printing and medical treatment and public health.
Owner:XIAOGAN ESUN NEW MATERIAL +2
Nanometer blocking agent and preparation method thereof
The invention relates to the field of petroleum drilling, and particularly discloses a nanometer plugging agent and a preparation method thereof. The nanometer plugging agent is prepared from the following raw materials in parts by weight: 10 to 50 parts of vinyl monomer, 10 to 25 parts of allyl monomer, 5 to 15 parts of sodium methacrylate sulfonate, 2 to 10 parts of an emulsifier, 1 to 1.5 parts of an initiator, 15 to 55 parts of water, 5 to 10 parts of an organic emulsion, 15 to 25 parts of a filler and 5 to 10 parts of sepiolite. The organic emulsion is prepared from the following components in parts by weight: 1 to 1.5 parts of polylactic acid, 0.5 to 1 part of lignocellulose, 1 to 4 parts of stannic chloride, 0.3 to 0.5 part of sodium dodecyl benzene sulfonate, 0.1 to 0.2 part of benzimidazole, 0.5 to 1 part of gelatin, 2 to 3 parts of dimethyl sulfoxide and 1 to 1.5 parts of white oil. The nanometer plugging agent can plug micro-nano gaps, acting force between nano-particles and the stratum is large, the nano-particles are not prone to being separated from the gaps, a plugging rate is high, and high temperature resistance is high.
Owner:北京宏勤石油助剂有限公司
Method for improving performance of silane film on surface of aluminum alloy
InactiveCN106929863AGuaranteed film formationIncrease production costLiquid/solution decomposition chemical coatingSilanesPhosphate
The invention discloses a method for improving the performance of a silane film on the surface of an aluminum alloy, which comprises the following steps: putting the polished aluminum alloy raw material into a cleaning solution to clean it; After mixing the ionic water and sodium methacrylate sulfonate, stir for 6-10 minutes, the preparation of the film-forming solution is completed, and then the mixed solution is placed in a non-ventilated place for hydrolysis, and the hydrolysis time is 3-5 hours; put the aluminum alloy material into In the prepared film-forming solution, after 2-5 minutes, add diisooctyl phosphate of 0.03-0.05 times the weight of the film-forming solution to the film-forming solution, continue to soak, take out the aluminum alloy material, and place it in a ventilated place for static Set to make a finished product. In the present invention, the silane film prepared on the surface of the aluminum alloy has strong adhesion, good wear resistance, and good corrosion resistance, and the uniformity and density of the film are good, which can effectively prevent aluminum alloy products from being The membrane at the middle surface is mechanically damaged.
Owner:王鑫
Preparation method of modified natural chitin bio-based high-performance polycarboxylate superplasticizer
The invention relates to a preparation method of a modified natural chitin bio-based high-performance polycarboxylate superplasticizer. A chitin high polymer is used as a raw material for preparing the polycarboxylate superplasticizer. The chitin high polymer is subjected to deacylation and degradation treatment to obtain a modified chitin oligomer connected with a hydrophilic methylol group and an amino group; maleic anhydride containing a double bond is introduced onto the amino group of the modified chitin oligomer by a grafting reaction; N-maleic anhydride-oligomeric chitin graft and sodium methacrylate sulfonate are subjected to copolymerization to prepare a novel high-performance polycarboxylate superplasticizer containing -SO3H, -COOH, -OH, -CH2OH groups. The prepared polycarboxylate superplasticizer has a good dispersion effect on cement particles at a lower dosage, has a certain comb structure, can be adsorbed on the surface of the cement particles, and can generate a steric-hinerance effect. Then, concrete doped with the polycarboxylate superplasticizer has excellent fluidity retention property.
Owner:JINLING INST OF TECH
Method for producing methacryloxypropyltrimethoxysilane
ActiveCN105061487ANo dischargeStable outputGroup 4/14 element organic compoundsSaline waterSodium methacrylate
The invention relates to a method for producing methacryloxypropyltrimethoxysilane, which belongs to the technical field of industry of fine chemicals. The method comprises the following steps: investing gamma-choropropyltrimethoxysilane and sodium methacrylate in a reactor, adding a catalyst and a polymerization inhibitor, stirring and heating for reacting and filtering a reactant, distilling a filtrate to obtain the product; cleaning the filter residue by using saturated common salt brine with PH value to 7-8, filtering, repeating for 2-3 times, and merging a washing lotion for stationary layering, wherein the filter residue is white common salt crystal and can be used for industrial purpose; wherein a lower layer of the washing lotion is saturated common salt brine for next cycle usage; an upper layer of the washing lotion is the methacryloxypropyltrimethoxysilane crude product, and distilling to obtain the product. According to the invention, yield of methacryloxypropyltrimethoxysilane product is high, energy consumption is low, production cost is low, and more importantly, the by-product can be effectively cycled and used, and no environmental pollution is generated.
Owner:JINGZHOU JIANGHAN FINE CHEM
Antibacterial coating layer and preparation technology thereof
InactiveCN108864880ABroad absorption spectrumHigh bactericidal activityAntifouling/underwater paintsPaints with biocidesKetoneDodecylbenzene
Owner:太仓斯迪克新材料科技有限公司
Preparation method of adsorbent resin used for plant flavone extraction
InactiveCN107903351AImprove adsorption capacityImprove lipophilicityIon-exchange process apparatusOther chemical processesFoaming agentSodium methacrylate
The invention discloses a preparation method of an adsorbent resin used for plant flavone extraction. The preparation method comprises the following steps: using surface active agent modified nano calcium carbonate crystal whiskers, then using modified calcium carbonate crystal whiskers to be matched with a pore-foaming agent, using methyl methacrylate, styrene and sodium methacrylate to polymerize and prepare resin by using an antiphase emulsifiable method, and then preparing diluted hydrochloric acid to remove calcium carbonate inside the resin to obtain the adsorbent resin. The adsorbent resin prepared in the invention has the advantages of large specific surface area, more pore canals and large adsorbing capacity for flavone.
Owner:CHANGSHA QIUDIANBING INFORMATION TECH CO LTD
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