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39results about How to "Improve liveliness" patented technology
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Full-lightweight ceramsite concrete and preparation method thereof
The invention relates to full-lightweight ceramsite concrete and a preparation method thereof. The full-lightweight ceramsite concrete is prepared from, by weight, 278-339 parts of cement, 318-344 parts of ceramsite, 334-382 parts of pottery sand, 50-55 parts of coal ash, 35-42 parts of silica fume, 0.001-3 parts of triisopropanolamine, 0.5-3 parts of a water reducing agent and 0.001-3 parts of athickening agent. The method includes steps: subjecting ceramsite and pottery sand to surface pretreatment through alkyl alkoxy silane, prewetting ceramsite and pottery sand to achieve a saturated surface dry state, then sequentially feeding lightweight aggregates, cement, silica fume and coal ash into a forced mixer, and well mixing to obtain the full-lightweight ceramsite concrete. The full-lightweight ceramsite concrete prepared according to the method has advantages of light weight, high peaceability and effectiveness in inhibition of ceramsite floating and has a promising application prospect in the field of energy-saving construction engineering.
Owner:CHINA THREE GORGES UNIV
Method for synthesizing polysantalol
InactiveCN101723804AImprove livelinessEasy to operateOrganic compound preparationHydroxy compound preparationKetoneMethyl iodide
The invention discloses a method for synthesizing polysantalol. The method is divided into the following three steps: 1, condensing brain olefine aldehyde and butanone by adopting potassium hydroxide as a catalyst and aqueous solution of methanol as solvent to prepare 3-methyl-5-(2,2,3-trimethyl-3-cyclopentene-1-base)-3-pentene-2-ketone; 2, subjecting the 3-methyl-5-(2,2,3-trimethyl-3-cyclopentene-1-base)-3-pentene-2-ketone and methyl iodide to addition reaction by adopting octadecyl trimethyl ammonium bromide as the catalyst in order to prepare 3,3-dimethyl-5-(2,2,3-trimethyl-3-cyclopentene-1-base)-4-pentene-2-ketone; and 3, reducing the 3,3-dimethyl-5-(2,2,3-trimethyl-3-cyclopentene-1-base)-4-pentene-2-ketone by adopting potassium borohydride as a reducing agent so as to prepare the polysantalol. The method has the advantages of easy operation and high reaction yield.
Owner:SHANGHAI APPLIED TECHNOLOGIES COLLEGE
High-temperature-resistant high-viscosity high-strength and high-toughness interlayer binding material and preparation method
ActiveCN109486457AImprove thermal stabilityImprove solubilityFibre typesMacromolecular adhesive additivesTrimethylolpropaneIsophorone diisocyanate
The invention discloses a high-temperature-resistant high-viscosity high-strength and high-toughness interlayer binding material and a preparation method. The interlayer binding material is prepared from the following raw materials in parts by weight: 15-20 parts of polytetrahydrofuran ether glycol, 5-10 parts of isophorone diisocyanate, 5-10 parts of succinic anhydride, 5-10 parts of diethanol amine, 4-8 parts of trimethylolpropane, 30-40 parts of heterocyclic aramid fibers, 100 parts of epoxy resin and 10-15 parts of polyethylene polyamine. The preparation method of the interlayer binding material comprises the steps of preparation of aliphatic hyperbranched polyurethane, surface treatment on the heterocyclic aramid fibers, surface grafting treatment on the heterocyclic aramid fibers, modification of the heterocyclic aramid fibers and the epoxy resin through the hyperbranched polyurethane to prepare a hyperbranched polyurethane modified heterocyclic aramid fiber epoxy resin curing agent, and adding of the prepared curing agent in the epoxy resin to obtain the interlayer binding material. The interlayer binding material has excellent properties of high strength, high toughness, impact resistance and the like, a preparation process is simple, and a reaction process is controllable.
Owner:CHANGAN UNIV
Benzimidazole n-type dopant and application thereof in organic electroluminescent devices
InactiveCN106316960AProcess stabilityFor long-term storageOrganic chemistrySolid-state devicesDopantElectron injection
The present invention relates to a benzimidazole n-type dopant. The benzimidazole n-type dopant includes organic ion salts containing a benzimidazole halide anion with a structure shown in a formula (1), a neutral n-type dopant material with a structure shown in a formula (2), or a dimeric n-type dopant material with a structure shown in a formula (3). When the benzimidazole n-type dopant is used as the dopant of electron transporting materials, the dopant can enhance electron injection, increase thin film electron mobility rate, carrier concentration and device current density, and improve device efficiency and stability.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD +1
Rubber covered roller of island structure and preparation method thereof
ActiveCN108948459AIncrease coefficient of frictionImprove wear resistanceDomestic articlesPolymer scienceHardness
Owner:南京金三力辊业科技有限公司
Method for preparing ferrate based on carbon sheet iron plating
The invention discloses a method for preparing ferrate based on carbon sheet iron plating. The method comprises the following steps that electroplating liquid and an electroplating device are prepared, a double-anode electroplating method is adopted, a rough carbon sheet with pock marks and cracks on the surface is selected as an iron plating cathode, namely a cathode carbon sheet, electroplating is conducted, and a carbon electrode containing an iron plating layer is prepared and obtained; an electrolytic bath device is made, and the electroplated carbon electrode containing the iron plating layer is washed with distilled water and is dried; soaking is conducted with NaOH; the obtained material serves as anode material and is placed in an anode chamber; a carbon rod serves as cathode material and is placed in a cathode chamber; and voltage is adjusted, the cathode current density is controlled to 135 A / m3, electrolysis is conducted in a mixed alkaline solution, and the ferrate is prepared. According to the method, the rough surface of the carbon sheet is utilized and is combined with the electroplating method, iron plating is conducted on the surface of the carbon sheet, the obtained elementary substance iron has good activity. The yield of the ferrate prepared through the method is improved significantly, and meanwhile, the problem of iron surface passivation appearing due to the fact that cast iron or a iron gauze is directly used as an anode is solved effectively.
Owner:福建省东吴环保科技有限公司
Method for reducing stress of tempered glass and method for recycling defective products of glass
The invention provides a method for reducing stress of tempered glass and a method for recycling defective products of glass and relates to the field of production of touch screens. The method for reducing stress of tempered glass comprises the following steps: (A), preheating: preheating lithium silicate tempered glass for 2-5 hours at 290-350 DEG C; (B) ion exchange: placing the preheated tempered glass in mixed fused salt of sodium nitrate and lithium nitrate and carrying out ion exchange for 10-120 minutes at 382-450 DEG C, wherein the weight percentage of sodium nitrate in the mixed fusedsalt is 71-79%; the weight percentage of lithium nitrate in the mixed fused salt is 21-29%. The method for reducing the stress of the tempered glass can be used for relieving the problem that a technology for eliminating the stress of the lithium nitrate tempered glass is lacked in the prior art; the purpose of reducing or eliminating the stress of the lithium nitrate tempered glass is achieved.
Owner:LENS TECH
Compound polymerization inhibitor for styrene rectification
ActiveCN111018654AImprove livelinessStrong Electron WithdrawingChemical industryDistillation purification/separationPolymer scienceMethyl palmoxirate
The invention relates to a compound polymerization inhibitor for styrene rectification, wherein the compound polymerization inhibitor is prepared from a nitroxide free radical compound, 2,4-ditrifluoromethyl thiophenol halide and a solvent. According to the invention, by utilizing the synergistic effect of all the components, the compound polymerization inhibitor remarkably improves the polymerization inhibition effect, reduces the tar discharge amount of a styrene device, improves the production capacity of a styrene rectification device, reduces the toxicity of the polymerization inhibitor and is environment-friendly.
Owner:CNOOC TIANJIN CHEM RES & DESIGN INST +2
Preparation method of boron-doped semiconductor graphite
The invention discloses a preparation method of boron-doped semiconductor graphite. Through heat treatment of graphite at 2000-3000 DEG C, activity of carbon atoms in the graphene surface is greatly increased. Driven by concentration gradient, boron is diffused to graphite particles when the boron source is at high temperature. In addition, atomic diameter of boron is not very different from atomic diameter of carbon atoms such that boron atoms replace carbon atoms at high temperature so as to realize alternative doping of boron atoms. Then, the semiconductor graphite with in situ alternativedoping of boron is obtained.
Owner:HUAQIAO UNIVERSITY
Orange peel-like rubber roller material and method for making orange peel-like rubber roller by utilizing material
InactiveCN109369986AExcellent permanent deformation rateGood strength and elasticityCarbon blackOligoester
The invention discloses an orange peel-like rubber roller material and a method for making an orange peel-like rubber roller by utilizing the material and belongs to the field of rubber rollers. The orange peel-like rubber roller material is prepared from the following raw materials in percentage by weight: 40-48% of butyronitrile rubber, 25-35% of carbon black, 5-10% of china clay, 1-5% of butadiene-acrylonitrile rubber powder, 3-5% of oligoester, 1.5-3.5% of a plasticizer, 0.15-0.45% of an accelerant, 1-2% of zinc stearate, 1-2% of an anti-ageing agent, 0.2-0.6% of sulfur and 1-2% of peroxide. In addition to excellent permanent deformation rate, strength, wear resistance and other service performances, the orange peel-like rubber roller material disclosed by the invention has excellent toughness, molecular interaction and other grinding and roughening process properties. According to the improved rubber roller making method, uniformly distributed orange peel-like rubber rollers are made, the rubber roller friction coefficient is obviously increased, and rubber roller application at special stations is met.
Owner:南京金三力橡塑有限公司
Culture method for improving shrimp larvae survival rate
InactiveCN106172093AConducive to survivalReduced activityClimate change adaptationPisciculture and aquariaSodium bicarbonateAcetic acid
The present invention and a culture method for improving the survival rate of shrimp seedlings are composed of sodium carbonate, sodium bicarbonate and ethylenediaminetetraacetic acid disodium salt (EDTA-2Na); the culture method for improving the survival rate of shrimp seedlings is calculated by weight The percentages are: 30-60% of sodium carbonate, 60-80% of sodium bicarbonate and 0-15% of disodium edetate. The invention improves the survival rate of shrimp seedlings by at least 25%, and has obvious economic benefits.
Owner:武汉卓海青晨科技有限公司
Air purifier adopting electrostatic dust collection technology and applied to industrial workshop
InactiveCN109838846AImprove practicalityInstalled and disassembledMechanical apparatusLighting and heating apparatusTemperature controlAir purifiers
The invention relates to an air purifier adopting an electrostatic dust collection technology and applied to an industrial workshop. The air purifier comprises a base, a purification device, a connecting mechanism and a temperature control box, wherein the connecting mechanism comprises a connecting pipe, a rotating rod and a screw rod, a heating mechanism is arranged in the connecting pipe, and comprises a sleeve, a power supply, a first connecting rod, a second connecting rod, a third connecting rod and a copper mesh, and an aqueous solution, a cooling pipe, a first hose, a second hose and two lifting units are arranged in the temperature control box. According to the air purifier adopting the electrostatic dust collection technology and applied to the industrial workshop, the activity of ozone is enhanced through the exothermic copper mesh which is in the connecting pipe so that the ozone can react conveniently, meanwhile, the connecting pipe is convenient and fast to mount and dismount, the copper mesh can be timely replaced, moreover, the height of the cooling pipe is controlled through the lifting units, then the air heat absorbed by the aqueous solution is adjusted so that the air purifier can adjust the discharged air temperature according to needs, and the practicability of the air purifier is improved.
Owner:JIANGSU HUAXIA INTPROP SERVICE CO LTD
Warm-keeping fabric and preparation process thereof
ActiveCN111910449AComfortable to wearMachine washableCarbon fibresTextile/flexible product manufacturePolymer scienceElastic fiber
The invention relates to the technical field of clothing fabrics, in particular to a warm-keeping fabric and a preparation process thereof. The warm-keeping fabric is formed by weaving composite yarns, wherein the composite yarns are formed by stacking surface yarns, elastic fiber yarns and bottom yarns, after stacking for forming, the surface yarns form a surface layer, the elastic fiber yarns form an elastic middle layer, and the bottom yarns form a bottom layer; the surface yarns are wool fibers with the metric count of 1 / 80Nm and the count of 90S; the elastic fiber yarns are low-temperature spandex with the fineness of 30-60D; and the bottom yarns are formed by blending 80-85% of polypropylene fibers with the yarn count of 50-60 S / 1, 13-18% of modal fibers and 0.5-2% of graphene fibers. Three yarn layers are formed on a made fabric by blending and weaving the three kinds of yarn fibers, the middle layer has elasticity, the wearing comfort and skin friendliness of the fabric are improved, and the fabric has the functions of being environmentally friendly, capable of keeping warm, capable of being washed by a machine, free of ironing and the like, and is good in breathability while keeping warm, free of stuffy feeling and skin sticking feeling and comfortable to wear.
Owner:DONGGUAN SENLIN TEXTILE LTD
High-weather-resistance organic pigment and preparation method thereof
PendingCN114479514AImprove livelinessGood weather resistanceOrganic dyesCoatingsSoil sciencePolymer resin
The invention discloses a high-weather-resistance organic pigment and a preparation method thereof, and relates to the technical field of organic pigments. Comprising 20-25 parts of distilled water; 20 to 30 parts of organic pigment; 10 to 30 parts of polymer resin; 15-25 parts of a pigment; 10 to 20 parts of mordant; 25-30 parts of a dispersant; the mordant comprises any one of lime water, alum or a sodium nitrite aqueous solution, and after the mordant is dissolved in water, the solute mass concentration range of the mordant is 30%-60%. The synthesis raw materials with chlorine groups, nitryl and sulfurous acid groups are selected, so that the activity of diazonium salt is high, later coupling is facilitated, meanwhile, after the organic pigment is formed through coupling, due to the fact that the sulfurous acid groups have high electrophilicity, the performance of the synthesized azo bonds is stable, and the organic pigment can be obtained. The stability of the pigment is enhanced, the defects that the pigment is poor in light fastness, poor in color brightness and extremely prone to being influenced by the external environment in the actual use process are overcome, and the weather resistance, light blocking capacity and weather resistance of the organic pigment are indirectly enhanced.
Owner:江西隆源化工股份有限公司
Method for Reducing Stress of Strengthened Glass and Recycling Method for Defective Glass Products
Owner:LENS TECH
Heat-conducting gel capable of being rapidly cured at room temperature and preparation method of heat-conducting gel
The invention discloses heat-conducting gel capable of being rapidly cured at room temperature and a preparation method of the heat-conducting gel. The heat-conducting gel capable of being rapidly cured at room temperature is prepared from the following raw materials in parts by weight: 3 to 12 parts of polymethylphenyl siloxane oil, 5 to 20 parts of modified silicone oil, 2 to 12 parts of amorphous silicon dioxide, 35 to 50 parts of modified aluminum nitride powder, 0.12 to 0.6 part of a platinum-containing catalyst, 1.2 to 6 parts of octyl trimethoxy siloxane and 1.2 to 3.6 parts of hydrogen-containing silicone oil. According to the invention, the prepared heat-conducting gel capable of being rapidly cured at the room temperature is stable in heat-conducting property, large in heat-conducting coefficient and short in curing time; and the preparation method of the heat-conducting gel capable of being rapidly cured at the room temperature is simple, the preparation technology is easy to operate, economic benefits are high, and the method is suitable for large-scale production.
Owner:福建臻璟新材料科技有限公司
Preparation method and application of single-atom lanthanum-supported nitrogen-doped graphene two-dimensional materials
ActiveCN113299926BLow costPromote environmental protectionCell electrodesDoped grapheneNitrogen source
The invention discloses a preparation method and application of a single-atom lanthanum-supported nitrogen-doped graphene two-dimensional material; preparation: 1. Preparation of nitrogen-doped graphene: (1) ultrasonically dispersing graphene oxide and a nitrogen source in a solvent , to obtain a dispersion; (2) drying the dispersion to obtain a mixture; (3) under the protection of an inert gas, calcining the mixture at a high temperature to obtain nitrogen-doped graphene; two, lanthanum-loaded nitrogen-doped graphite Preparation of ene: (1) ultrasonically dispersing the nitrogen-doped graphene in deionized water to obtain a suspension of nitrogen-doped graphene; (2) dissolving the lanthanum source to obtain an aqueous solution containing metal lanthanum; (3) The aqueous solution of the metal lanthanum is added dropwise to the suspension of the nitrogen-doped graphene and stirred, then heated for reaction, and then calcined at a high temperature under the protection of an inert gas to obtain a two-dimensional monoatomic lanthanum-supported nitrogen-doped graphene Material. Applications: Use the as-prepared materials for oxygen reduction reactions or assemble into metal-air batteries.
Owner:JIANGSU UNIV OF TECH
An alkaline earth metal [mg(lna) 2 ] n Single crystal adsorption material and its preparation method and application
ActiveCN111763331BImprove adsorption capacityImprove stabilityGas treatmentOther chemical processesAlkaline earth metalPhysical chemistry
![An alkaline earth metal [mg(lna) <sub>2</sub> ] <sub>n</sub> Single crystal adsorption material and its preparation method and application](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/3024c305-b8b7-4341-a941-983de230ab17/HDA0002649360370000011.png "An alkaline earth metal [mg(lna) <sub>2</sub> ] <sub>n</sub> Single crystal adsorption material and its preparation method and application")
![An alkaline earth metal [mg(lna) <sub>2</sub> ] <sub>n</sub> Single crystal adsorption material and its preparation method and application](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/3024c305-b8b7-4341-a941-983de230ab17/HDA0002649360370000012.png "An alkaline earth metal [mg(lna) <sub>2</sub> ] <sub>n</sub> Single crystal adsorption material and its preparation method and application")
![An alkaline earth metal [mg(lna) <sub>2</sub> ] <sub>n</sub> Single crystal adsorption material and its preparation method and application](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/3024c305-b8b7-4341-a941-983de230ab17/HDA0002649360370000021.png "An alkaline earth metal [mg(lna) <sub>2</sub> ] <sub>n</sub> Single crystal adsorption material and its preparation method and application")
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY
Benzimidazole n-type dopant and application thereof in organic electroluminescent devices
InactiveCN110343073AProcess stabilityFor long-term storageOrganic chemistrySolid-state devicesDopantHalogen
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD +1
Composite metal electrothermal film sol and method for producing electroheating tube with the same
InactiveCN100441055CConsistent electrical characteristicsReduce pollutionHeating element shapesHeating element materialsWater vaporPotassium
Owner:冷同桂
An organic electroluminescent device
ActiveCN106898701BAvoid quenchingAvoid instabilitySolid-state devicesSemiconductor/solid-state device manufacturingElectron transporting layerMaterials science
The invention relates to an organic electroluminescent device, which comprises a first electrode layer, a light-emitting layer, an electron injection layer and a second electrode layer stacked together, and the electron injection layer and the second electrode layer are arranged in physical contact. The electron injection layer comprises an organic ion salt of benzimidazole represented by formula (I), a benzimidazole neutral organic material represented by formula (II), and a dimerization of benzimidazole organic material represented by formula (III). One or more in the body, this type of material reduces the potential barrier between the second electrode layer and the interface of the organic electron transport layer, improves the transport capacity of carriers, so that the electron injection layer and the The second electrode layer is arranged in direct physical contact, and an insulating buffer layer is no longer required, which has the properties of improving device efficiency and prolonging device life.
Owner:KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD +1
A kind of preparation method of nitrogen-containing semiconductor graphite
ActiveCN109437185BImprove livelinessAchieve alternative dopingGraphiteSemiconductor devicesPhysical chemistryNitrogen source
Owner:HUAQIAO UNIVERSITY
Preparation method of cuprous cyanide
PendingCN111392747AImprove livelinessLower quality requirementsMetal cyanidesSodium cyanideCupric Ion
The invention discloses a preparation method of cuprous cyanide, and belongs to the technical field of cuprous cyanide preparation, and the preparation method comprises the following steps: adding sodium chloride into mother liquor containing Cu<2+> to obtain a first solution; heating and stirring the first solution, and introducing liquid sulfur dioxide for reaction to obtain a second solution containing a cuprous chloride-sodium chloride complex; adjusting the second solution to be alkaline, and then carrying out filter pressing treatment on the second solution to obtain a third solution; and adding a sodium cyanide solution into the third solution to obtain the cuprous cyanide. According to the method, the liquid sulfur dioxide replaces traditional metal copper to serve as a reducing agent, the activity of the liquid sulfur dioxide is high, copper ions can be reduced into cuprous ions, the production condition is strengthened, the production efficiency is improved, and the production cost is greatly reduced.
Owner:宁波神化特种化学品集成有限公司
Method for preparing highly active hydrogen evolution electrode by electroless plating on the surface of flocked steel plate-hole making
ActiveCN110629249BImprove livelinessImprove hydrogen evolution performanceLiquid/solution decomposition chemical coatingElectrode shape/formsPtru catalystVulcanization
The invention relates to a method for preparing a highly active hydrogen evolution electrode by electroless plating-forming holes on the surface of a flocking steel plate. The invention relates to a method for preparing a highly electrolytic hydrogen evolution active electrode. The invention aims to solve the problem of poor performance of the current non-noble metal electrolysis hydrogen catalyst. The method for preparing highly active hydrogen evolution electrode by electroless plating-forming holes on the surface of flocking steel plate: (1) preparation of activation solution; (2) preparation of plating solution; (3) preparation of pore-forming sulfurization solution; (4) chemical spraying alloy (5) Pore-forming and vulcanizing treatment, a catalytic layer with excellent hydrogen evolution reaction activity is prepared on the surface of the flocking steel plate, which is conducive to reducing the energy consumption of electrolysis of hydrogen in alkaline solution.
Owner:UNIV OF JINAN
Organic carbon nanotube coated with thin polymer film on surface and preparation method thereof
InactiveCN101747667BImprove livelinessRaw materials are easy to getPigment treatment with macromolecular organic compoundsPigment physical treatmentCarbon nanotubePlasma deposition
Owner:SHANGHAI INST OF TECH
A method for preparing ferrate based on carbon sheet iron plating
The invention discloses a method for preparing ferrate based on carbon sheet iron plating, comprising the following steps: preparing an electroplating solution and an electroplating device, adopting a double anode electroplating method, and selecting a rough carbon sheet with pits and cracks on the surface as the plating The iron cathode, that is, the cathode carbon sheet, is electroplated to prepare a carbon electrode containing an iron coating; an electrolytic cell device is made, and the electroplated carbon electrode containing an iron coating is rinsed with distilled water and dried; soaked in NaOH; the obtained material As an anode material, it is placed in the anode chamber; as a cathode material, carbon rods are placed in the cathode chamber; adjust the voltage to control the cathode current density to 135A / m 3 , Electrolyzed in mixed alkali solution to prepare ferrate. The present invention utilizes the rough surface of the carbon sheet and combines the electroplating method to plate iron on the surface of the carbon sheet. The problem of passivation of iron surfaces when using cast iron or wire mesh as an anode.
Owner:福建省东吴环保科技有限公司
Mg-MOFs monocrystalline absorption material and preparation method and application thereof
ActiveCN111974354ASimple preparation processLow costGas treatmentOther chemical processesBenzeneMetallurgy
The invention provides a Mg-MOFs monocrystalline absorption material and a preparation method and application thereof. A structural formula of the Mg-MOFs monocrystalline absorption material is [Mg(Bpdc)(DMF)2]n, wherein Bpdc is 2,2'-dipyridyl-4-4'-dicarboxylic acid, DMF is N,N-dimethyl formamide, n is a natural number, and n is greater than or equal to 1. The invention further provides a preparation method of the Mg-MOFs monocrystalline absorption material and application of the Mg-MOFs monocrystalline absorption material to absorption for VOCs gas discharged in the wood drying process. The Mg-MOFs monocrystalline absorption material provided by the invention shows an excellent absorption effect on VOCs gas such as specific benzene, beta-pinene, carbon tetrachloride, alpha-pinene and thelike discharged by woods such as pinus sylvestris in China in the high-temperature / normal-temperature drying process, and has high purifying efficiency.
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY
Waterproof protective garment
PendingCN111826964AReduce surface tensionImprove hydrophobicityLiquid repellent fibresProtective garmentMethyl malonateDimethyl malonate
The invention relates to the technical field of garments and discloses a waterproof protective garment comprising a one-piece garment body. The surface of the one-piece garment body is treated with awaterproof finishing agent, and the waterproof finishing agent comprises the following components in parts by weight, including 20-30 parts of hydroxyl silicone oil, 10-15 parts of lauryl sodium sulfate, 5-6 parts of dimethyl malonate; 2-4 parts of glutaraldehyde and 60-80 parts of deionized water. The waterproof protective garment has the following advantages and effects that the hydroxyl silicone oil can endow clothes with water resistance and water repellency; the mixed emulsion of the hydroxyl silicone oil and the lauryl sodium sulfate enables a layer of hydrophobic film formed on the surface of the one-piece garment body, so that the surface tension is reduced, water and oil are difficult to wet the surface of the one-piece garment body, and the oil-repellent and water-repellent effects are achieved; the dimethyl malonate has a strong electron withdrawing group and is prone to having a similar aldol condensation reaction with the glutaraldehyde to achieve the purpose of increasinga carbon chain, and the number of carbon atoms of the mixed component is increased, so that the thickness of a hydrophobic layer formed on the surface of the protective garment is increased, the surface tension is reduced, and the hydrophobicity and the waterproof effect are improved.
Owner:浙江丑鸭实业有限公司
An aircraft auxiliary power generation mechanism based on metal nanopowder combustion
ActiveCN109763897BEfficient and fast inhalationBurn fullyTurbine/propulsion engine ignitionTurbine/propulsion engine startersCombustion chamberFlight vehicle
Owner:三亚哈尔滨工程大学南海创新发展基地
Rubber paste material of rubber roller and preparation method of rubber paste material
The invention discloses a rubber paste material of a rubber roller and a preparation method of the rubber paste material and belongs to the field of rubber preparation. The rubber paste material is prepared from the following specific components in percentage by mass: 45 to 58 percent of raw nitrile butadiene rubber, 30 to 35 percent of carbon black, 1.5 to 2.5 percent of a plasticizer, 1 to 2 percent of a bonding agent, 4 to 7.2 percent of liquid nitrile butadiene, 0.2 to 0.4 percent of an accelerator, 3.5 to 4.5 percent of sulfur, 0.2 to 0.4 percent of stearic acid, 1 to 2 percent of zinc oxide and 0.6 to 1.0 percent of an anti-ageing agent. The preparation method comprises the following preparation steps: mixing master batch; carrying out two-section vulcanization on the master batch; preparing rubber paste; immersing the rubber paste; stirring the rubber paste; diluting the rubber paste to obtain a finished product. The rubber paste material of the rubber roller, provided by the invention, has the characteristics of good flowability and great viscosity at room temperature; a sticky roller core, and the nitrile butadiene rubber or a sticky nitrile butadiene rubber layer are densely molded; in a vulcanization process, crosslinking is carried out, so that the bonding strength between the roller core and the nitrile butadiene rubber is improved and the utilization period of therubber roller is prolonged.
Owner:南京金三力橡塑有限公司
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