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47results about How to "Difficult to volatile" patented technology
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High temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and preparing method thereof
The invention relates to the technical field of polyvinyl chloride composite materials, in particular to a high temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and a preparing method thereof. The modified material comprises by weight, 80-120 parts of PVC resin, 30-70 parts of filling agent, 31-70 parts of plasticizer, 1-10 parts of hot-resistant modifying agent, 1-10 parts of fire retardant, 1-10 parts of stabilizing agent, 5-15 parts of impact modifier and 0.2-2 parts of lubricating agent. Each raw material is weighed by weight and mixed after being stirred; the raw material is squeezed out of prilling through a double-screw extruder and the modified material is available. The hot temperature resistant performance of the modified material manufactured by the preparing method is fine; the maximum usage temperature can reach up to 135 DEG C. The modified material is environment-friendly and has the advantages of high intensity, good flame retardant effects, strong compression performance and toughness, excellent processing performance and better comprehensive performance. The preparing method of the high temperature resistant environment-friendly polyvinyl chloride (PVC) modified material has the advantages of being simple in process, convenient to control and operate, stable in quality, and high in production efficiency. In addition, the preparation method of the high temperature resistant environment-friendly polyvinyl chloride (PVC) modified material can be used for a large-scale industrial production.
Owner:广东祺龙科技有限公司
Lasting and effective antistatic polyolefin composite material and preparation method thereof
The invention discloses a lasting and effective antistatic polyolefin composite material. The lasting and effective antistatic polyolefin composite material comprises, by weight, 70-99 parts of polyolefin resin, 0-30 parts of packing, 0-6 parts of compatilizer, 0.5-5 parts of ionic liquid antistatic agent and 0.2-0.5 part of anti-oxygen. The invention further discloses a preparation method of the lasting and effective antistatic polyolefin composite material. The lasting and effective antistatic polyolefin composite material is low in additive amount of the antistatic agent, superior in antistatic performance, the surface resistance can reach 108-1,011 ohm, and the lasting and effective antistatic polyolefin composite material is little influenced by the temperature and humidity, is lasting in antistatic performance and is capable of being applied to various fields with antistatic and dust-free requirements.
Owner:ZHEJIANG JAVA SPECIALTY CHEM CO LTD
Pesticide composition containing emamectin benzoate
The pesticide composition consists of emamectin benzoate 0.1-5 wt%, effective component B 0.2-30 wt%, synergist 0.1-5 wt%, emulsifier 5.0-20 wt%, and solvent 45-90 wt%. The effective component B is chlorfenapyr, diafenthiuron, fipronil, beta-cypermethrin, cyhalothrin or their any mixture. The present invention can prevent and kill several kinds of pests, and this can reduce pesticide consumption, lower agricultural cost and reduce pollution.
Owner:湖南万家丰科技有限公司
Preparation and application method of water-based paint remover
InactiveCN103013221ATake off quicklyReduce corrosionChemical paints/ink removersSodium lactateActive agent
The invention discloses a preparation and application method of a water-based paint remover. The water-based paint remover consists of sodium hydroxide, a surface active agent and a composite additive. The mass fraction of sodium hydroxide is 3%-10% that of the surface active agentis 0.5%-2%, that of the composite additive is 1%-6%, and the rest is water. The surface active agent is octadecyl dihydroxy diethyl betaine; and the composite additive is composed of three of sodium lactate, sodium malate, sodium sarcosinate, natrium aceticum and sodium gluconate. The water-based paint remover disclosed by the invention has the characteristics of being efficient, environmentally-friendly, safe, nontoxic, barely corrosive and hard to volatilize, can be used for removing the paint from common metal and plastic base materials, and is simple and easy to prepare and use.
Owner:GUANGDONG UNIV OF TECH
Texturization method of monocrystalline silicon wafer
InactiveCN106835288AHigh boiling pointLow costAfter-treatment detailsFinal product manufactureChemistryMonocrystalline silicon
The invention belongs to the technical field of monocrystalline silicon wafer tools, and particularly relates to a texturization method of a monocrystalline silicon wafer. The method comprises the following steps: 1) preparing atexturizationadditive; 2) preparing atexturization solution; and 3) putting the monocrystalline silicon wafer into thetexturization solution prepared in the step 2), and carrying out texturization at 80-88 DEG C for 600-1200 seconds. The method has excellent texturization effect; and the pyramids on thetexturizedsurface have smaller size and narrower distribution, and can reduce the light reflection, thereby enhancing the photoelectric conversion efficiency of the assembled solar cell.
Owner:DEQING LIJING ENERGY TECH CO LTD
Transparent permanent antistatic transparent polyvinylidene fluoride composition and preparation method thereof
The present invention relates to a permanent antistatic polyvinylidene fluoride (PVDF) composition and a preparation method thereof. The composition comprises the following components, by weight, 68-99.4% of polyvinylidene fluoride, 0.5-30% of an ionic liquid antistatic agent, and 0.1-2% of other additives. During preparation, polycarbonate, a fluorine-substituted polyolefin additive and an ionic liquid are added to a banbury mixer to carry out melting blending at a temperature of 170-200 DEG C until mixing is uniform, the mixed material processed from the process is subjected to melting extrusion through a twin-screw extruder, and then granulation and drying are performed, wherein extrusion temperatures of various regions of the twin-screw extruder are maintained at a temperature of 160-190 DEG C. The composition has the following advantages that: 1, the product has good transparency and excellent antistatic property, and the antistatic property of the material is less affected by air humidity, and the resulting antistatic property is permanent, 2, the process is simple, processing is convenient, the use amounts of the ionic liquid antistatic agent and other additives are less, and the obtained PVDF composition has excellent mechanical properties, and 3, environmental protection requirements are met, the raw materials have characteristics of no toxicity and no harm, and no toxic element exists with chemical analysis.
Owner:ZHEJIANG JAVA SPECIALTY CHEM CO LTD
Method for recycling waste thermosetting resin by utilizing microwave
ActiveCN109320762AAchieve recyclingImprove chemical degradation efficiencyPlastic recyclingLiquid separationMicrowaveBoiling point
The invention provides a method for recycling waste thermosetting resin by utilizing microwave. The method comprises the following steps that (1) waste thermosetting resin is dipped in a polar solventwith the boiling point being at least 100 DEG C, microwave heating is conducted to swell the thermosetting resin, the temperature of microwave heating is controlled to not surpass the thermal decomposition temperature of the thermosetting resin, and the swelled thermosetting resin is washed; and (2) method I: microwave treatment is conducted on the swelled and washed thermosetting resin so as toimprove the interior porous structure and increase the surface roughness of the thermosetting resin; method II: the swelled and washed thermosetting resin is dried, and the dried thermosetting resin is chemically degraded by adopting an existing chemical degradation method. The method can realize direction functional modification and utilization of waste thermosetting resin, and can effectively shorten recycling time consumption of the waste thermosetting resin under the moderate chemical degradation condition.
Owner:SICHUAN UNIV
Permanent antistatic polycarbonate composite and preparation method thereof
InactiveCN103242635AHigh transparencyHigh decomposition temperatureEnvironmental resistancePolyolefin
The invention relates to a permanent antistatic polycarbonate composite and a preparation method thereof. The permanent antistatic polycarbonate composite comprises the following components in percentage by weight: 99%-87.5% of polycarbonate, 0.5% of fluoro-substitution polyolefin additives, 0.5%-10% of antistatic agents and 0.1%-2% of other auxiliary agents. The preparation method comprises the following steps of: firstly placing the polycarbonate, the fluoro-substitution polyolefin additives and ionic liquid into an internal mixer, and melting and blending at 260 DEG C till uniform mixing; and carrying out melt extrusion on a mixed material obtained through the processing of the process through a double-screw extruder, granulating, and then drying. The obtained permanent antistatic polycarbonate composite has the advantages of good product penetrability, excellent antistatic property, less influence of air humidity on the antistatic property of a material, lasting antistatic property, simple process, convenience for processing, small usage amount of the ionic liquid antistatic agents and the other auxiliary agents and less influence on the self impact resistance and formability of the polycarbonate, meets the requirement for environment protection, is nontoxic and harmless in raw material and is discovered that no toxic element exists through chemical analysis.
Owner:ZHEJIANG JAVA SPECIALTY CHEM CO LTD
Device and method for measuring specific heat capacity and phase change latent heat of substance
ActiveCN109540960AEasy to operateReduce volumeMaterial heat developmentPlatinum resistanceEngineering
The invention provides a device and method for measuring the specific heat capacity and phase change latent heat of a substance. The device comprises a calorimeter component and a sample temperature control component. The calorimeter component comprises a calorimeter. A magnetic stirrer used for stirring a calorimetric liquid in the calorimeter is arranged at the bottom of the calorimeter. A temperature difference thermocouple and a first temperature sensor are arranged in the calorimeter. The sample temperature control component is located above the calorimeter. The sample temperature controlcomponent comprises a thermostatic aluminum block. A platinum resistance thermometer and a tested sample are arranged in the thermostatic aluminum block. A second temperature sensor is arranged on the tested sample. The calorimetric liquid is ethylene glycol. The calorimeter is in a double-layered sleeve structure. According to the invention, the device can accurately measure the specific heat capacity of a solid and liquid and the phase change latent heat of a solid-liquid phase change material; the stability of the device is great; a wide temperature range can be measured; and the device can be used for measuring the specific heat capacity and phase change latent heat of materials in industry and scientific research, and can be used for teaching experiments of energy and power related professional courses.
Owner:XI AN JIAOTONG UNIV
Self-crosslinking type vinyl chloride copolymer emulsion and preparation method thereof
The invention belongs to the technical field of industrial coatings, and relates to self-crosslinking type vinyl chloride copolymer emulsion. The self-crosslinking type vinyl chloride copolymer emulsion is prepared from the following raw materials in parts by weight: 100 parts of a total monomer, 1-5 parts of an emulsifier, 0. 5-2 parts of a pH buffer, 0.05-0.5 part of an initiator and 80-230 parts of deionized water, wherein the total monomer consists of the following components in percentage by weight: 35-60% of vinyl chloride, 15-30% of vinylidene chloride, 5-25% of an acrylate monomer, 2-10% of a cross-linking monomer and 015-0.5% of an auxiliary. The invention provides a preparation method for preparing the self-crosslinking type emulsion by copolymerizing the vinylidene chloride, theacrylate and the crosslinking monomer with vinyl chloride as a main monomer; and according to the method, a polymer structure is adjusted through optimizing an emulsifier system and a polymerizationprocess so as to obtain the vinyl chloride copolymer emulsion which can effectively replace alkyd resins to be used in industrial anticorrosive coatings.
Owner:WUXI HONGHUI NEW MATERIALS TECH
Room-temperature molten salt and preparation method and application thereof
The invention relates to room-temperature molten salt and a preparation method and application thereof and belongs to the technical field of low-temperature electrolytic aluminum. The room-temperature molten salt is composed of a cation portion and an anion portion. The general formula of the cation portion is [AlCl2.nBase] <+>, wherein Base is one of ethylene carbonate or propylene carbonate or butene carbonate or dimethyl carbonate or diethyl carbonate or methyl ethyl carbonate or diphenyl carbonate or di-tert-butyl dicarbonate, and n ranges from 2 to 20. The anion portion is AlCl4-. According to the room-temperature molten salt and the preparation method and application thereof, a low-temperature co-molten system is found and compounded for the first time; all raw materials of the system are converted into products; purification and separation are not needed; and the room-temperature molten salt and the preparation method and application thereof meet atom economy. In addition, the room-temperature molten salt and the preparation method and application thereof have the beneficial effects of being high in electric conductivity, small in viscosity, stable in air, insensitive to water and low in cost.
Owner:NORTHEASTERN UNIV
A kind of water-based automotive refinish paint capable of low temperature construction and preparation method thereof
InactiveCN102277075AHigh boiling pointDifficult to volatileAntifouling/underwater paintsPaints with biocidesWater basedSolvent
The invention relates to a water-based auto repair paint capable of low-temperature construction and a preparation method thereof. The repair paint comprises the following components and contents by weight: 50-55 parts by weight of water-based resin, 1.5-2% dispersant, 8-10% cosolvent, and a substrate. Wetting agent 0.1-0.3, bactericidal and mildew-proofing agent 0.1-0.2, thickener 1.8-3.2, aluminum powder 6-10, deionized water 25-40. Compared with the prior art, the present invention has the advantages of low temperature construction, environmental protection and the like.
Owner:DONGLAI COATING TECH SHANGHAI
Method for extracting astaxanthin through ionic liquid-salt aqueous two-phase system
The invention discloses a method for extracting astaxanthin through an ionic liquid-salt aqueous two-phase system. The method comprises the steps that an ionic liquid aqueous solution is prepared, sothat the mass ratio of an ionic liquid is 2-10%; shrimp shell powder and the ionic liquid aqueous solution are mixed and then subjected to magnetic stirring at the normal temperature; a mixture aftermagnetic stirring is subjected to centrifugal separation, and a rough astaxanthin extraction solution is collected; salt is added to the rough astaxanthin extraction solution, standing is conducted atthe normal temperature to form the ionic liquid-salt aqueous two-phase system, liquid-liquid separation is conducted, and an ionic liquid enrichment phase is collected for obtaining an astaxanthin concentration solution; water is added to the astaxanthin concentration solution, standing is conducted, so that astaxanthin is precipitated, then filtering is conducted, and an astaxanthin precipitateis collected and dried. According to the extraction method, the content of astaxanthin extracted from shrimp shells is high, the extraction method is easy and convenient to implement, the astaxanthincan be extracted in a large scale, the condition is mild, and the method is environmentally friendly.
Owner:GUANGDONG OCEAN UNIVERSITY
Asymmetrically-arranged heat exchanger
ActiveCN110174020AEnhanced heat transferStrengthen the dust removal effectEmission preventionIndirect heat exchangersEngineeringPlate heat exchanger
The invention provides an asymmetrically-arranged heat exchanger. The heat exchanger comprises a collecting pipe, left coil pipes and right coil pipes are distributed on the left side and the right side of the collecting pipe respectively; the heat exchanger is characterized in that the left coil pipes and the right coil pipes are arranged at intervals, one right coil pipe is arranged between every two adjacent left coil pipes, and one left coil pipe is arranged between every two adjacent right coil pipes. The heat exchanger can be used for carrying out reinforcing heat exchange and soot removal at different heights, and the effects of reinforcing heat exchange and removing accumulated dust are achieved.
Owner:SHANDONG UNIV
Antistatic flame-retardation and high-oil-adsorption functional material and preparation method thereof
The invention discloses an oil adsorption material. The oil adsorption material is prepared through a polymerization reaction of polyether polyol, a lipophilic assistant, a responsive flame retardant, a flame retardation smoke suppressor, a responsive antistatic agent, a composite catalyst, diisocyanate, a foam stabilizer and a foaming agent; and the density of the oil adsorption material is 8-20Kg / m<3>, the crude oil adsorption rate is 30-50 times, and the oxygen index is greater than 26%. The oil adsorption material has the advantages of antistatic property, flame retardation, high oil adsorption rate, non-toxicity, no pollution, low cost and onsite foaming. The oil adsorption material can be used to adsorb overflow oil on the water surface as an antistatic flame-retardation oil adsorption material, is especially suitable for emergency treatment of overflow oil on the water surfaces of rivers, lakes and seas, and is also suitable for kitchen range hoods, factory oil-containing exhaust gas recovery devices and other oil waste absorption or recovery occasions.
Owner:江苏瑞丰科技实业有限公司
Heat-preserving, flame-retardant, water-proof and corrosion-resistant functional gel material and preparation method thereof
The invention discloses a heat-preserving, flame-retardant, water-proof and corrosion-resistant functional gel material and a preparation method thereof. The functional gel material is prepared from polyether glycol, epoxy resin, polyisocyanates, water, a reactive flame retardant, a flame-retardant antismoke agent, a compound catalyst, a foam stabilizer and a physical foaming agent serving as raw materials through a polymerization reaction. The gel material has the characteristics of flame retardancy, corrosion resistance, waterproofness, field foaming property and the like, and can be applied in the fields of heat preserving, cold preserving and the like for various pipelines in building wall bodies, cold storage warehouses, central air conditioners, petrifaction, metallurgy and the like.
Owner:江苏瑞丰科技实业有限公司
Antibacterial low-foam laundry detergent and preparation method thereof
InactiveCN106244352ANo side effectsLong-lasting bactericidal and antibacterial effectNon-ionic surface-active compoundsDetergent mixture composition preparationCitrate sodiumChemistry
The invention belongs to the field of hygienic products and particularly relates to an antibacterial low-foam laundry detergent and a preparation method thereof. The antibacterial low-foam laundry detergent is prepared from, by weight, 10-30 parts of sodium dodecyl benzene sulfonate, 10-30 parts of coconutt diethanol amide, 15-35 parts of octadecyl dimethyl betaine, 30-50 parts of tea saponin, 10-25 parts of sodium citrate, 20-40 parts of a bacteriostat, 1-15 parts of rose essential oil and 70-90 parts of deionized water. The antibacterial low-foam laundry detergent is reasonable in formulation, excellent in antibacterial effect, high in detergency, low in foam and easy to rinse, integrates functions of sterilization and cleaning and has excellent bactericidal and antibacterial efficacies and energy saving and environment friendly effects.
Owner:李金新
Separation and purification method of sweet corn cob polysaccharide
InactiveCN105968222AHigh recovery rateImprove separation efficiencyPurification methodsFreeze-drying
The invention discloses a separation and purification method of sweet corn cob polysaccharide. The separation and purification method comprises the following steps of drying and crushing sweet corn cobs, adding normal hexane into sieved sweet corn cobs according to the weight volume ratio being 1: (8 to 12), performing magnetic stirring under the room temperature condition for 1 to 1.5 hours, and centrifuging at the speed of 4000r / min for 10 to 15 minutes; performing hot water extraction and centrifuging on degreased sweet corn cobs under the conditions that the temperature is 100DEG C, the material-to-liquid ratio is 1:(18 to 22), and the time is 2.5 to 3.5 hours, and taking supernate; adding 3 to 5g of ammonium sulfate into a 25mL colorimetric tube according to an isopropanol-ammonium sulfate aqueous two-phase diagram, and then adding sweet corn cob crude polysaccharide liquid; after the ammonium sulfate is completely dissolved, finally adding the isopropanol until the volume is 20ml, so as to form an aqueous two-phase system solution; enabling the aqueous two-phase system solution processed by ultrasonic waves to stand in a separating funnel for phase separation; respectively determining the volumes of upper and lower phases, and the contents of polysaccharides and protein of the upper and lower phases; preserving the polysaccharide solution obtained after separating and purifying two aqueous phases at 4DEG C in a refrigerator for 1 to 2 days; after ammonium sulfate crystals are separated out, dialyzing and performing rotary evaporation and concentration to small volume; finally, performing vacuum freeze drying, thereby obtaining the sweet corn cob polysaccharide.
Owner:HARBIN UNIV OF COMMERCE
Preparation method of zirconium carbide composite ceramic temperature sensor
The invention relates to a preparation method of a zirconium carbide composite ceramic temperature sensor. The preparation method comprises the following steps: (1) uniformly mixing zirconium carbide powder with a proper amount of additive, adding a solvent, and performing ball milling in a ball mill to obtain a mixture; (2) drying the mixture in a rotary evaporator, and screening by a 50-200-mesh sieve to obtain pre-sintered mixed powder; (3) putting the pre-sintered mixed powder into a mould, and performing hot pressing sintering in vacuum or inert atmosphere; (4) linearly cutting blocky ceramic obtained by pre-sintering to form the sensor with required size and shape. The temperature sensor is high in mechanical strength, difficult to deform and volatilize at high temperature and stable in electrical performance, is capable of accurately measuring the temperature of an ultrahigh-temperature environment with temperature of less than 3000 DEG C in vacuum or protection atmosphere, is a temperature sensing element capable of measuring highest temperature in contact sensors, and has important application meaning in the field of ultrahigh-temperature measurement instruments and equipment.
Owner:西格马(河南)高温真空设备有限公司
Low-temperature liquid medium
ActiveCN107722945ALow Atmospheric Boiling PointDifficult to volatileHeat-exchange elementsAlkaneSingle substance
The invention provides a low-temperature liquid medium. The low-temperature liquid medium comprises at least one of an alkane type composition, an olefin type composition, an alcohol type compositionand an ether type composition, wherein the alkane type composition, the olefin type composition, the alcohol type composition and the ether type composition respectively comprise corresponding substances which have the melting point lower than -110 DEG C and the standard boiling point higher than 50 DEG C and are non-toxic and harmless. As the low-temperature liquid medium is composed of single substances or a binary, ternary and multielement mixture thereof which have the melting point lower than -110 DEG C and the standard boiling point higher than 50 DEG C and are non-toxic and harmless, anatmospheric boiling point of the low-temperature liquid medium is low, the low-temperature liquid medium is difficult to volatilize, and a specific mixture can be utilized for realizing a liquid requirement at a low temperature, especially at the temperature lower than -110 DEG C, in an eutectic way.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Recovery process and separation device of toluene solvent in production process of alpha-acetyl-gamma butyrolactone
InactiveCN102992930BContinuous operationReduce production energy consumptionOrganic compounds purification/separation/stabilisationOrganic compound preparationAcetic acidAlcohol
Owner:FUZHOU UNIV
Method for preparing polyamide composite nanofiltration membrane based on green and environment-friendly ionic liquid
InactiveCN112934005AExcellent resistance to organic solventsImprove pressure resistanceReverse osmosisCongo redVitamin B12
The invention discloses a method for preparing a polyamide composite nanofiltration membrane based on a green and environment-friendly ionic liquid, which comprises the following steps: dissolving a polymer (poly (m-phenylene isophthalamide)) by using the green and environment-friendly ionic liquid (1-ethyl-3-methylimidazole acetate) to prepare a porous base membrane; and using another green and environment-friendly ionic liquid (1-butyl-3-methylimidazole bis (trifluoromethanesulfonyl) imide salt) as an oil phase for interfacial polymerization on the surface of the base membrane to prepare a polyamide selection layer under the condition that both the ionic liquid phase and the water phase adopt mixed monomers, so that the polyamide composite nanofiltration membrane with high separation performance is obtained. The process is low in cost, safe, green and environment-friendly. The polyamide composite nanofiltration membrane prepared by the process has an excellent separation effect on organic solutions containing Congo red, acid red 94, solvent red, brilliant blue R, amaranth red, rhodamine B, vitamin B12 and other dyes (or drugs).
Owner:HUAQIAO UNIVERSITY
Environment-friendly rosin solution preparation method
The invention discloses an environment-friendly rosin solution preparation method. Plasticizer trimellitate and citric acid or epoxy grease serve as a solvent, rosin dissolved in the solvent at the temperature of 80-90 DEG C in a stirred manner to obtain rosin solution, and the rosin solution is safe, environmentally friendly, free from toxicity and taste and difficult to volatilization. The usedsolvent has plasticizing and wetting functions, minimum film-forming temperature and glass transition temperature of a compounded latex are reduced, and deflection and flexibility of a glue film are improved, so that wettability and adhesion of a non-polar material are greatly improved. The rosin solution prepared from the selected solvent has environmental friendliness and a plasticizing function, and blending compound of the latex is facilitated.
Owner:四川顶立胶业有限公司 +1
N, S-doped carbon quantum dots based on choline ionic liquid and preparation method thereof
InactiveCN112779007ADifficult to volatileNon-flammableMaterial nanotechnologyLuminescent compositionsBetaineThio-
The invention discloses N, S-doped carbon quantum dots based on a choline ionic liquid and a preparation method thereof. A choline ionic liquid and a thiobetaine compound are mainly used as raw materials, carbon quantum dots are rapidly prepared by adopting a high-temperature cracking and chemical oxidation method, and the high-purity N, S-doped carbon quantum dots can be obtained after ultrasonic treatment, centrifugation, filtration, dialysis and freeze drying. The preparation method disclosed by the invention is simple and rapid, the raw materials are not easy to volatilize and environment-friendly, and the prepared carbon quantum dots have the advantages of uniform particle size distribution, high fluorescence intensity and good stability and have a good development prospect in rapid analysis and detection.
Owner:SHENYANG AGRI UNIV
Air purifying agent and preparation method thereof
InactiveCN105851003AEfficient purificationReduce concentrationBiocideDispersed particle separationAlkaneActive agent
The invention relates to an air purifying agent by taking long-chain alkane sulfoxide as a main material and a preparation method thereof, which belongs to the field of air purification. According to the method, calcium hypochlorite is employed for oxidizing long-chain alkane thioether to prepare the long-chain alkane sulfoxide, and then a surfactant and water are added to obtain the air purifying agent. The air purifying agent can rapidly and effectively purify air, epically purify PM2.5 and formaldehyde in air, and has certain sterilization effect.
Owner:NINGBO BIYUE ENVIRONMENTAL PROTECTION TECH CO LTD
Formula of slush molding material
The invention relates to the technical field of slush molding, in particular to a formula of a slush molding material, which is realized by the following technical scheme: the slush molding material mainly comprises the following raw materials in percentage by weight: 21.6-22.5% of dioctyl terephthalate; 2.8 to 3.3 percent of a PVC (Polyvinyl Chloride) viscosity reducer; 3% to 4% of DNTXIB; 1-1.5% of hot oil; 1.8%-2.2% of phenol-free calcium zinc; 0.1 to 0.3 percent of dimethyl silicone oil; 30 to 40 percent of PVC (Polyvinyl Chloride) paste resin; 8 to 13% of PVC paste resin; according to the present invention, the sum of the percentages of all the components is 100%, and the raw materials and the corresponding proportions are matched for use, such that the produced slush molding material has characteristics of no toxicity, good weather resistance, strong stability, color fading resistance, good flexibility, smooth and beautiful surface and easy demolding, and the quality of the slush molding product is ensured.
Owner:云阳县优多科技有限公司
Lubricating liquid for food transporting equipment and preparation method of lubricating liquid
InactiveCN106167731AHigh specific heat capacityGood killing abilityLubricant compositionTriethanolamineToxin
The invention relates to the field of lubricating liquid, in particular to lubricating liquid for food transporting equipment. The lubricating liquid is prepared from the following raw materials in parts by weight: 2-3 parts of water-soluble chitosan, 2-3 parts of triethanolamine citrate, 0.5-1 part of polyvinylpyrrolidone, 10-14 parts of mint extract, 8-14 parts of carboxylic acid, 2-4 parts of polyalkylene glycol, 3-5 parts of sodium octadecyl polyoxyethylene ether phosphate, 0.3-0.5 part of medical rust, 2-3 parts of a silicone defoamer, 1-2 parts of ethoxylated pentaerythritol tetra (methyl) acrylate, 1-2 parts of ethylparaben, 4-8 parts of sedoheptulose 7-phosphoric acid, and 20-26 parts of simethicone. The lubricating liquid disclosed by the invention is free from toxins, difficult to volatilize, and high in specific heat capacity, has certain heat-conducting properties for heat produced by equipment abrasion, has certain attraction capacity on bacteria and pests, has excellent capacity of killing the bacteria and the pests, has quite significant antirust capacity, and does not have crystal deposition, and the kinematic viscosity of the lubricating liquid is 10-20% higher than that of general lubricating liquid.
Owner:BENGBU ZHONGZHENG INDAL
Anti-ultraviolet PVC film and preparation method thereof
The invention provides an anti-ultraviolet PVC film and a preparation method thereof. The anti-ultraviolet PVC film comprises the following components in parts by weight: 90-100 parts of polyvinyl chloride resin, 0.7-2.8 parts of an antioxidant, 0.1-0.5 part of an ultraviolet light absorber, 1-3 parts of color masterbatch, 0.2-2 parts of chlorinated paraffin, 0.5-1.4 parts of a stabilizer, 20-50 parts of a plasticizer, 2-4 parts of chemical modified oil and 1-2.5 parts of chlorinated polyethylene. The ultraviolet light absorber comprises the following components in parts by weight: 10-20 parts of modified nano titanium dioxide, 30-60 parts of a phase transfer agent and 5-15 parts of an activating agent. According to the anti-ultraviolet PVC film disclosed by the invention, all the components in the raw materials of the anti-ultraviolet PVC film react with one another, so that the ultraviolet barrier property and the stability of the anti-ultraviolet PVC film are improved, the anti-aging effect of the anti-ultraviolet PVC film is realized, and the service lifetime of the anti-ultraviolet PVC film is further prolonged; and the preparation method is simple and can be widely popularized.
Owner:ZHEJIANG QINGYU TECH
A device and method for measuring specific heat capacity and latent heat of phase change
ActiveCN109540960BLow priceDifficult to volatileMaterial heat developmentGlycol synthesisMaterials science
Owner:XI AN JIAOTONG UNIV
Novel ionic liquid composite medium and preparation method, application and application method thereof
ActiveCN110129823AEfficient Homogeneous Catalytic ConversionReduce manufacturing costElectrolysis componentsElectrolytic organic productionSolution systemSolvent
The invention provides a novel ionic liquid composite medium which is prepared by mixing an ionic liquid solvent and an ionic liquid catalyst. The ionic liquid type solvent is obtained by mixing and reacting thioamide and excessive aluminum halide at room temperature and inert atmosphere, and the ionic liquid type catalyst is obtained by mixing and reacting organic onium halide containing Br-NSTEDacidic functional groups and excessive aluminum halide at room temperature and inert atmosphere. At the same time, the invention also provides a preparation method, application and application methodthereof. In the invention, ionic liquid is used as a novel green medium, and efficient homogeneous catalytic conversion of cellulose to 2,5-dimethylfuran is realized through an electrochemical method, which is beneficial to reducing production cost. In addition, the solution system is nonflammable and difficult to volatilize, the reaction process is simple to operate and has good safety, and thetechnology has broad application prospects.
Owner:ANYANG INST OF TECH
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