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Technique for preparing antimicrobial peptide by using Bacillus subtilis
InactiveCN103333937AImprove purification efficiencyImprove heat resistanceFood preservationMicroorganism based processesSide effectAntimicrobial peptides
The invention discloses a technique for preparing antimicrobial peptide by using Bacillus subtilis, belonging to the technical field of bioengineering. By using Bacillus subtilis BRT39 capable of generating broad-spectrum high-efficiency antimicrobial peptide as a production strain, liquid seed preparation, fermentation liquid preparation, fermentation liquid pretreatment, antimicrobial peptide extraction and refinement, antimicrobial peptide dry powder preparation and other techniques are carried out to prepare the high-purity antimicrobial peptide finished product, wherein the activity recovery rate is up to higher than 43.5%. The invention has the advantages of simple technique, high yield of antimicrobial peptide, and high purity; the prepared antimicrobial peptide dry powder belongs to a natural antimicrobial agent and has no toxic or side effect, and thus, can be used as a food preservative, feed additive, agricultural biological control agent or animal disease preventing agent; and the antimicrobial peptide has the advantages of no toxicity, no residue, no drug resistance and high safety.
Owner:XUZHOU UNIV OF TECH
High-temperature resistant, anti-sticking and anticorrosive thermoplastic coating for inner walls of metal pipelines and preparation method thereof
ActiveCN103194146AImprove adhesionReduce coefficient of frictionAntifouling/underwater paintsPaints with biocidesStrong acidsSolvent
The invention provides a high-temperature resistant, anti-sticking and anticorrosive thermoplastic coating for inner walls of metal pipelines and a preparation method thereof, belonging to the technical field of coatings. The coating comprises thermoplastic polyether sulfone resins, high-temperature resistant fluororesins, thixotropic agents, anticorrosion pigments, functional fillers, a complex solvent and auxiliaries in a mass ratio of (10-20):(6-15):(0-2):(2-15):(0-30):(40-78):(0-2). The preparation method is characterized by mixing the thermoplastic polyether sulfone resins, high-temperature resistant fluororesins, thixotropic agents, functional fillers, anticorrosion pigments, complex solvents and auxiliaries and then stirring the mixture at a linear velocity of 15m / s for 15-30 minutes and then sanding the mixture for 2-6 hours. The coating provided by the invention has the characteristics that the coating has good adhesion with metal substrates, has usage temperature up to 260 DEG C, has low surface energy, is oleophobic and lyophobic, prevents contamination and scaling and has strong acid, alkali and corrosion resistance capacities and thin coat. The preparation method is simple, the production process is easy to control and the production equipment is easy to achieve.
Owner:吉林省奕彤新材料有限公司
Venting, self-cleaning and degradable environmental-friendly preservative film and preparation method thereof
InactiveCN101817939AHigh tensile strengthImprove toughnessFlexible coversWrappersAntibiosisPolymer science
The invention discloses a venting, self-cleaning and degradable environmental-friendly preservative film and a preparation method thereof. Chitosan, nanometer titanium dioxide and beta-cyclodextrine serve as raw materials, and an ultrasonic wave blending compound technology and a freeze drying pore-forming technology are adopted to develop a novel bright and transparent degradable preservative film which has even thickness and totally satisfies the physical performance requirement of the preservative film. The method comprises the following steps: dispersing nanometer titanium dioxide, preparing mixed film liquid at a ratio, blending by ultrasonic wave, freezing, drying, baking and the like. Compared with the like product, the method of the invention is simple and easy to realize and has low preparation cost. The preservative film of the invention is degradable and has the functions of venting, antibiosis, self cleaning and the like, is a new-generation environmental-friendly preservative film for replacing the existing plastic preservative film, can be used for preserving fresh food and has wide application prospect and economic value in food field and the like.
Owner:徐紫宸
Abrasion resistant cast tube with high temperature oxidation resistant anticorrosive coating
ActiveCN103277629AEvenly distributedHigh hardnessAnti-corrosive paintsRigid pipesTemperingNanocomposite coating
The invention relates to an abrasion resistant cast tube with a high temperature oxidation resistant anticorrosive coating. An abrasion resistant cast tube body is produced through centrifugal casting and is subjected to quenching, high-temperature tempering, solution strengthening thermal treatment and twice tempering dispersion hardening thermal treatment, then a rustproof coating is coated on the outer wall of the tube through electrostatic spraying, finally a water glass nanometer composite coating prepared through testing is sprayed on the inner wall of the tube, and a high temperature oxidation resistant anticorrosive coating film inner layer is obtained after high temperature curing and cooling. The obtained metal tube has high hardness and abrasion resistance, and the anticorrosive coating of the metal tube has excellent waterproof performance, antifouling effect and high temperature resistance.
Owner:江阴德耐特重工科技有限公司
Wear-resistant and anticorrosive polyethersulfone coating, and preparation method and application thereof
InactiveCN105238260AImprove heat resistanceGood physical and mechanical propertiesFireproof paintsPretreated surfacesWear resistantToluene
The invention discloses a wear-resistant and anticorrosive polyethersulfone coating, and a preparation method and an application thereof, and belongs to the technical field of coatings. The purpose of the invention is to solve the disadvantages of needing of cooperative use of multilayer coatings, tedious spraying process, unable consideration to the anticorrosion performance and the wear resistance, and obvious reduction of the anticorrosion and the wear resistance performances at a high temperature of present anticorrosive and wear-resistant coatings. The wear-resistant and anticorrosive polyethersulfone coating is prepared from polyethersulfone resin, polytetrafluoroethylene resin micro-powder, silicon carbide micro-powder and a composite solvent, and synergism of above components makes a coating layer obtained by using the coating has no change and maintains adhesion after being immersed in 10% sulfuric acid or 10% sodium hydroxide or toluene for 120h; and the friction coefficient and the wear rate of the coating layer are extremely low, so metal corrosion is effectively avoided, and difficult wearing failure of the coating layer is realized.
Owner:JILIN JITU GAOKE TECH CO LTD
Steel drum paint special for baking type alcohol acid amido and method of preparing the same
InactiveCN101270258AStrong adhesionImprove corrosion resistanceLinings/internal coatingsEpoxy resin coatingsEpoxySander
The invention discloses roasting type alkyd amino special steel drum paint and a preparation method thereof, and relates to the paint industry; alkyd resin, preformed gel and amino thinner are added into a container to be stirred at high speed; titanium dioxide is added in; the obtained paint paste is ground and dispersed by the pouring tray of the sander with dispersing and grinding grain size of below 15mm, and then poured into the large basin of the container; and then butanol, xylene, epoxy resin, n-butanol etherified melamine resin, adhesion promoting resin, interface activator and agent are added into to be stirred evenly, so as to obtain the qualified product of the invention finally.
Owner:天津大田包装容器有限公司
Fabrication method of anti-corrosive and wear-resistant pipeline for delivering minerals
ActiveCN103276282AEvenly distributedHigh hardnessCorrosion preventionPipe protection against corrosion/incrustationTemperingNanocomposite coating
The invention relates to a fabrication method of an anti-corrosive and wear-resistant pipeline for delivering minerals. The method comprises the steps that a wear-resistant pipeline body is fabricated by centrifugal casting; quenching, high temperature tempering, solid solution strengthening heat treatment and a double tempering dispersion hardening heat treatment technology are performed; an outer wall of the pipeline is coated with a water glass nano composite coating subjected to test configuration; high temperature solidifying and then cooling are performed; a high-temperature-resistant, oxidized and anti-corrosive filming inner layer is obtained; and finally an inner wall of the pipeline is coated with a wear-resistant coating. The fabricated metal pipeline has higher hardness and wear-resistant property; the anti-corrosive outer coating of the pipeline has excellent water resistance, anti-fouling effect and high-temperature-resistant property; and the anti-corrosive inner coating of the pipeline has excellent wear-resistant property.
Owner:JIANGSU JINSHENGYUAN SPECIAL VALVE
Preparation method of wear-resistant cast pipe with high-temperature oxidation resistant corrosion-resistant layer
ActiveCN103290336AEvenly distributedHigh hardnessFurnace typesAnti-corrosive paintsTemperingOxidation resistant
The invention relates to a preparation method of a wear-resistant cast pipe with a high-temperature oxidation resistant corrosion-resistant layer. The preparation method is characterized by manufacturing a wear-resistant pipeline body through centrifugal casting, carrying out the processes of quenching, high-temperature tempering, solid solution strengthening thermal treatment and double tempering and dispersion hardening thermal treatment, then electrostatically spraying a rust-resistant coating on the outer wall of the pipeline, finally coating a water glass nano-composite coating prepared through tests on the inner wall of the pipeline, and carrying out cooling after high-temperature curing, thus obtaining a high-temperature oxidation resistant corrosion-resistant film-coated inner layer. The prepared metal pipeline has higher hardness and wear resistance, and the corrosion-resistant coating of the metal pipeline has excellent water resistance, antifouling effect and high temperature resistance.
Owner:JIANGSU JINSHENGYUAN SPECIAL VALVE
Retanning agent for improving tearing strength of leather and preparation method of retanning agent
InactiveCN108219162AHigh tear strengthImprove antibacterial propertiesTanning treatmentHydrogenHydrogen atom
The invention relates to a retanning agent for improving tearing strength of leather and a preparation method of the retanning agent. The retanning agent is prepared from 2,3-glycidyl ethyl methyl ethylamine chloride grafted gelatin polymer; preparation raw materials of the polymer comprise 2,3-glycidyl ethyl methyl ethylamine chloride and gelatin; for the polymer obtained by addition reaction ofepoxy group of the 2,3-glycidyl ethyl methyl ethylamine chloride and hydrogen atoms of primary amine on gelatin molecules, the breaking elongation is 19mm and the strength is 0.25 to 0.40MPa; the glass transition temperature is 190 to 218 DEG C, the antibacterial rate is 40 to 90 percent, the adsorption dye rate is 60 to 78 percent and the thickening rate is 110 to180 percent. The retanning agentcan significantly improve the tearing strength of the leather, and has the advantages of antibacterial property, adsorption and fixing of dye, bright coating colors and the like.
Owner:QILU UNIV OF TECH
Anti-corrosion, high-temperature-resisting and wear-resisting cast pipe
ActiveCN103267176AEvenly distributedHigh hardnessAlkali metal silicate coatingsCorrosion preventionTemperingNanocomposite coating
The invention relates to an anti-corrosion, high-temperature-resisting and wear-resisting cast pipe. A wear-resisting pipeline body is manufactured by means of centrifugal casting; after the steps of quenching, high-temperature tempering, solid solution strengthening heat treatment and two times of tempering dispersion hardening heat treatment, the inner wall of the pipeline body is coated with a water glass nanometer composite coating configured by a test; and then, the coating is cooled after being cured at a high temperature, so that a high-temperature-oxidation resisting anti-corrosion coating inner layer is obtained. The manufactured metal pipeline has high hardness and high wear-resisting performance. The anti-corrosion coating has excellent water-resisting performance, an excellent antifouling effect and good high-temperature-resisting performance.
Owner:WENZHOU FUCHENG CONSTR ENG CO LTD
Engineering bacteria for expressing benzene ring bioxygerase and its application
InactiveCN1869200AStrong resistance to organic solventsImprove expression efficiencyBacteriaMicroorganism based processesSolventBiology
The invention discloses an engineering fungus, which could express benzene ring dioxygenase, and the application. Especially, it involves the special expressing engineering fungus of benzene ring dioxygenase and the application in producing syn-1, 2-dihybric-3, 5-cyclohexane. The engineering fungus is gained by inducing the expressing carrier containing benzene ring dioxygenase gene into fake single cell fungus. The producing method of syn-3, 5-dihyadric-1, 2-cyclohexadiene contains the following steps: fermenting the engineering fungus to gain benzene ring dioxygenase; adding substrate benzene or benzene solution, and the content adding to fermenting liquid is 10-30mL / L every hour; fermenting for 8-24 hours to gain syn-1, 2-dihybric-3, 5-cyclohexane; solvent of the benzene solution could be olefin or bean oil, and the volume ratio of benzene and solvent is 1:1-3. The special expressing engineering fungus of benzene ring dioxygenase will perform an important function in the industrial producing of DHCD, and it has great application prospect.
Owner:TSINGHUA UNIV
Abrasion-resistant metal pipeline with internal anti-corrosion coating
InactiveCN103540862AAchieve resistance reductionEvenly distributedFurnace typesAnti-corrosive paintsHardnessSolid solution strengthening
The invention relates to an abrasion-resistant metal pipeline with an internal anti-corrosion coating. An abrasion-resistant pipeline body is manufactured through centrifugal casting, and is also subjected to quenching, high-temperature tempering, solid solution strengthening thermal treatment as well as twice tempering dispersion hardening thermal treatment technology, and finally, an anti-corrosion coating is coated on the inner wall of the pipeline through air spraying. The metal pipeline has high hardness and abrasion-resistant performance; the anti-corrosion coating has excellent waterproofness, antifouling effect as well as high-temperature-resistant performance.
Owner:徐梁冰
Dextran gel integral adsorption extraction stirring rod and preparation method and application thereof
ActiveCN109382079AGood chemical stabilityStrong resistance to organic solventsOther chemical processesSolid sorbent liquid separationSolventSephadex gels
The invention relates to a dextran gel integral adsorption extraction stirring rod, which comprises a homogenous body of a mercapto-containing dextran gel and dextran-modified magnetic powder, and thehomogenous body contains a cavity matching a template molecule. The invention also relates to a preparation method of the dextran gel integral adsorption extraction stirring rod. The integral adsorption extraction stirring rod prepared by the interaction of the magnetic material and the dextran gel is the homogenous body, has high mechanical strength, and strong solvent resistance, the preparation method has simple and easy process and low cost, and the stirring rod can quickly and efficiently enrich the target substances.
Owner:CHINA PETROLEUM & CHEM CORP +1
Technique for preparing antimicrobial peptide by using Bacillus subtilis
InactiveCN103333937BImprove purification efficiencyImprove heat resistanceFood preservationMicroorganism based processesSide effectAntimicrobial peptides
The invention discloses a technique for preparing antimicrobial peptide by using Bacillus subtilis, belonging to the technical field of bioengineering. By using Bacillus subtilis BRT39 capable of generating broad-spectrum high-efficiency antimicrobial peptide as a production strain, liquid seed preparation, fermentation liquid preparation, fermentation liquid pretreatment, antimicrobial peptide extraction and refinement, antimicrobial peptide dry powder preparation and other techniques are carried out to prepare the high-purity antimicrobial peptide finished product, wherein the activity recovery rate is up to higher than 43.5%. The invention has the advantages of simple technique, high yield of antimicrobial peptide, and high purity; the prepared antimicrobial peptide dry powder belongs to a natural antimicrobial agent and has no toxic or side effect, and thus, can be used as a food preservative, feed additive, agricultural biological control agent or animal disease preventing agent; and the antimicrobial peptide has the advantages of no toxicity, no residue, no drug resistance and high safety.
Owner:XUZHOU UNIV OF TECH
Thermoplastic high-temperature-resistant anti-sticking anti-corrosion coating for inner wall of metal pipeline and preparation method thereof
ActiveCN103194146BImprove adhesionGood oleophobic and hydrophobic propertiesAntifouling/underwater paintsPaints with biocidesStrong acidsSolvent
The invention provides a high-temperature resistant, anti-sticking and anticorrosive thermoplastic coating for inner walls of metal pipelines and a preparation method thereof, belonging to the technical field of coatings. The coating comprises thermoplastic polyether sulfone resins, high-temperature resistant fluororesins, thixotropic agents, anticorrosion pigments, functional fillers, a complex solvent and auxiliaries in a mass ratio of (10-20):(6-15):(0-2):(2-15):(0-30):(40-78):(0-2). The preparation method is characterized by mixing the thermoplastic polyether sulfone resins, high-temperature resistant fluororesins, thixotropic agents, functional fillers, anticorrosion pigments, complex solvents and auxiliaries and then stirring the mixture at a linear velocity of 15m / s for 15-30 minutes and then sanding the mixture for 2-6 hours. The coating provided by the invention has the characteristics that the coating has good adhesion with metal substrates, has usage temperature up to 260 DEG C, has low surface energy, is oleophobic and lyophobic, prevents contamination and scaling and has strong acid, alkali and corrosion resistance capacities and thin coat. The preparation method is simple, the production process is easy to control and the production equipment is easy to achieve.
Owner:吉林省奕彤新材料有限公司
A kind of automobile interior decoration plate prepared by using waste polypropylene material
ActiveCN105837948BStrong acid and alkali resistanceNot easily oxidizedCompression moldingOrganic solvent
Owner:湖南车霸房车实业有限公司
An anti-corrosion, high temperature and wear-resistant cast pipe
ActiveCN103267176BEvenly distributedHigh hardnessAlkali metal silicate coatingsCorrosion preventionTemperingNanocomposite coating
The invention relates to an anti-corrosion, high-temperature-resisting and wear-resisting cast pipe. A wear-resisting pipeline body is manufactured by means of centrifugal casting; after the steps of quenching, high-temperature tempering, solid solution strengthening heat treatment and two times of tempering dispersion hardening heat treatment, the inner wall of the pipeline body is coated with a water glass nanometer composite coating configured by a test; and then, the coating is cooled after being cured at a high temperature, so that a high-temperature-oxidation resisting anti-corrosion coating inner layer is obtained. The manufactured metal pipeline has high hardness and high wear-resisting performance. The anti-corrosion coating has excellent water-resisting performance, an excellent antifouling effect and good high-temperature-resisting performance.
Owner:WENZHOU FUCHENG CONSTR ENG CO LTD
Lipase gel particle and preparation thereof
ActiveCN101353654BHigh biocatalytic activitySimple structureEnzyme stabilisationBiotechnologyPolymer science
The invention discloses a lipase gel granule and a preparation method thereof; the lipase gel granule provided by the invention consists of a nucleus and a nucleocapsid; wherein, the nucleus is lipase, the nucleocapsid is polymer material which is formed by the polymerization of vinyl monomers, and the nucleus and the nucleocapsid are connected by chemical bonds. The lipase gel granule of the invention has high activity, strong heat stability, strong organic solvent resistance, small granular size, high specific surface area and no mass transfer and diffusion resistance, etc.; as a nano-enzyme preparation with high performance, the lipase gel granule has wide application prospect in the field of nanoscience and biotechnology; the preparation method of the lipase gel granule of the invention is characterized in that the reaction condition is simple and moderate and the prepared gel granule can be controlled and is easy to be implemented industrially and expanded.
Owner:TSINGHUA UNIV
Organic silicon surface treatment solution
InactiveCN104479542AShort curing timeImprove adhesionNon-macromolecular adhesive additivesCoatingsEthoxidinePtru catalyst
The invention relates to a silicon surface treatment solution and particularly relates to an organic silicon surface treatment solution. The organic silicon surface treatment solution is prepared from the following raw materials in parts by weight: 45-60 parts of diphenyldimethoxysilane, 10-15 parts of vinyl, 1-5 parts of methyl ethyl ketone, 5-8 parts of ethoxyethanol, 0.5-0.8 part of ferric oxide, 0.5-1 part of a catalyst and 5-15 parts of dimethylpropane. The organic silicon surface treatment solution provided by the invention can be cured at room temperature, is short in curing time, has a good bonding force, can be used for bonding various materials, and is strong in organic solvent resistance and good in sealing property.
Owner:JIANGSU NUOFEI NEW MATERIAL TECH
A novel material suitable as a battery case of an electric vehicle
InactiveCN107746534AAvoid crackingStrong resistance to organic solventsHigh resistancePolyethylene terephthalate glycol
A novel material suitable as a battery case of an electric vehicle is disclosed. The material includes 50-80 parts by mass of ABS resin, 10-30 parts by mass of polyethylene terephthalate, 8-15 parts by mass of ethylene-acrylic acid copolymer, 5-8 parts by mass of maleic anhydride grafted ABS, 0.1-0.5 part by mass of a heat stabilizer, 0.1-0.3 part by mass of a lubricant and 0.02-1.5 parts by massof a coupling agent. The material is applied for molding a battery case of an electric vehicle, has extremely high resistance to organic solvents, and can effectively protect the battery case of the electric vehicle from being cracked.
Owner:NINGBO SHAOJIN PLASTIC PRODS
Preparation method of frozen gel glutamine transaminase
PendingCN110358758ADiffusion mass transfer resistance is smallHigh catalytic efficiencyAcyltransferasesOn/in organic carrierCross-linkOrganic solvent
The invention discloses a preparation method of frozen gel glutamine transaminase. According to the method, firstly, a glutamine transaminase solution, a polymerization monomer N-isopropylacrylamide or acrylamide or N-vinylcaprolactam, a cross-linking agent and an initiator are mixed to form a stable and uniform solution, a polymerization reaction is initiated by ultraviolet light irradiation after low-temperature freezing treatment to obtain macroporous gel, and enzyme embedding is conducted to obtain the target product frozen gel embedded glutamine transaminase. By means of the method, the frozen gel embedded glutamine transaminase has the advantages of high catalytic activity, high stability, small mass transfer resistance, high organic solvent resistance and the like which glutamine transaminase prepared by means of other methods does not have; the process is simple, the conditions are mild, and the obtained immobilized enzyme is high in recovery rate and wide in application environment range.
Owner:TAIXING DONGSHENG FOOD TECH +1
Preparation method of anti-corrosion high-temperature-resistant wear-resistant casting pipe
ActiveCN103305773BEvenly distributedHigh hardnessFurnace typesAnti-corrosive paintsTemperingNanocomposite coating
The invention relates to a preparation method of an anti-corrosion high-temperature-resistant wear-resistant casting pipe. The preparation method comprises the following steps of: preparing a wear-resistant pipeline body by centrifugal casting, treating the wear-resistant pipeline by processes of quenching, high-temperature tempering, solid-solution strengthening heat treatment and twice quenching-dispersing-hardening heat treatment, then coating an anti-rusting coating layer on the outer wall of the pipeline by electrostatic spraying, finally coating water-glass nano composite coat prepared by test on the inner wall of the pipeline, cooling after high-temperature curing, and obtaining a high-temperature-oxidation-resistant anti-corrosion film-plated inner layer. The prepared metal pipeline is high in hardness and wear resistance, and the anti-corrosion coating layer is excellent in water resistance, antifouling effect and high-temperature resistance.
Owner:JIANGSU JINSHENGYUAN SPECIAL VALVE
An anti-corrosion and wear-resistant pipeline for transporting minerals
ActiveCN103276283BEvenly distributedHigh hardnessCorrosion preventionPipe protection against corrosion/incrustationTemperingPhysical chemistry
The invention relates to an anti-corrosive and wear-resistant pipeline for delivering minerals. A wear-resistant pipeline body is fabricated by centrifugal casting; quenching, high temperature tempering, solid solution strengthening heat treatment and a double tempering dispersion hardening heat treatment technology are performed; an outer wall of the pipeline is coated with a water glass nano composite coating subjected to test configuration; high temperature solidifying and then cooling are performed; a high-temperature-resistant, oxidized and anti-corrosive filming inner layer is obtained; and finally an inner wall of the pipeline is coated with a wear-resistant coating. The fabricated metal pipeline has higher hardness and wear-resistant property; the anti-corrosive outer coating of the pipeline has excellent water resistance, anti-fouling effect and high-temperature-resistant property; and the anti-corrosive inner coating of the pipeline has excellent wear-resistant property.
Owner:NANTONG LIYUANHENG MACHINERY
Fabrication method of anti-corrosive and wear-resistant pipeline for delivering minerals
ActiveCN103276282BEvenly distributedHigh hardnessCorrosion preventionPipe protection against corrosion/incrustationTemperingNanocomposite coating
The invention relates to a fabrication method of an anti-corrosive and wear-resistant pipeline for delivering minerals. The method comprises the steps that a wear-resistant pipeline body is fabricated by centrifugal casting; quenching, high temperature tempering, solid solution strengthening heat treatment and a double tempering dispersion hardening heat treatment technology are performed; an outer wall of the pipeline is coated with a water glass nano composite coating subjected to test configuration; high temperature solidifying and then cooling are performed; a high-temperature-resistant, oxidized and anti-corrosive filming inner layer is obtained; and finally an inner wall of the pipeline is coated with a wear-resistant coating. The fabricated metal pipeline has higher hardness and wear-resistant property; the anti-corrosive outer coating of the pipeline has excellent water resistance, anti-fouling effect and high-temperature-resistant property; and the anti-corrosive inner coating of the pipeline has excellent wear-resistant property.
Owner:JIANGSU JINSHENGYUAN SPECIAL VALVE
Globule nocardia strain and use of it for removing organic sulfur in fossil fuel
InactiveCN1197958CGreat potential for industrial applicationsDoes not reduce the calorific value of combustionBacteriaHydrocarbon oils refiningMicroorganismOxidative cleavage
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
A hollow flat all-ceramic filter membrane element and its preparation method
ActiveCN106621846BStrong resistance to organic solventsImprove stabilitySemi-permeable membranesOrganic solventAdhesive
Owner:JIANGXI BOCENT TEC CO LTD
A kind of preparation method of bionic superhydrophobic composite organic pigment
ActiveCN106947305BLow costImprove stabilityAntifouling/underwater paintsPaints with biocidesRough surfaceOrganic solvent
The invention discloses a preparation method of a bionic super-hydrophobic composite organic pigment. The preparation method comprises the following steps: activating meerschaum by an acid, using meerschaum to adsorb an organic pigment, and using organic silane to modify meerschaum. According to the preparation method, ethyl n-silicate is used to form a rough outer surface on the surface of an organic composite pigment taking modified meerschaum as the carrier; the thickness of the rough surface can be controlled by controlling the concentration of ethyl n-silicate; at the same time, a silanization agent is added to modified the composite pigment so as to form alkyl groups on the outer surface of the composite pigment, the surface energy of the composite pigment is reduced, and the meerschaum composite organic pigment has a super-hydrophobic property therefore. The synthesis equipment is simple, no pollution is generated, and the investment is little. The obtained super-hydrophobic composite organic pigment has a bright color and luster, also has a super-hydrophobic and self-cleaning function, does not dissolve in liquid acid or alkali, and has a strong performance on resisting organic solvents, heat, and UV aging.
Owner:XIANGTAN UNIV +1
Preparation method of negative oxygen ion decoration material
InactiveCN107459962AShort curing timeImprove adhesionNon-macromolecular adhesive additivesMacromolecular adhesive additivesAdhesiveOxygen ions
The invention provides a surface coating for a building decoration material. The surface coating is prepared from the following raw materials in parts by weight: 10-30 parts of microlite stone, 20-60 parts of octamethylcyclotetrasiloxane, 5-15 parts of paraffin, 10-35 parts of ethyl chlorosilane, 15-28 parts of methyl ethyl ketone, 0.5-5 parts of titanium dioxide, 0.5-5 parts of catalyst, 5-12 parts of adhesive, 2-8 parts of stearic acid and 15-30 parts of dimethyl propane. The surface coating for the building decoration material can be solidified at a room temperature, is short in solidifying time, has good bonding power, can bond various materials, and has strong organic solvent resistance and good sealability.
Owner:ANHUI ZHENXIN PAINT
Frozen gel embedding method for enzyme
InactiveCN102492684BImprove approachDiffusion mass transfer resistance is smallOn/in organic carrierOrganic solventMass transfer resistance
Owner:ZHEJIANG UNIV
A wear-resistant cast pipe with a high-temperature oxidation-resistant anti-corrosion layer
ActiveCN103277629BEvenly distributedHigh hardnessAnti-corrosive paintsRigid pipesTemperingOxidation resistant
The invention relates to an abrasion resistant cast tube with a high temperature oxidation resistant anticorrosive coating. An abrasion resistant cast tube body is produced through centrifugal casting and is subjected to quenching, high-temperature tempering, solution strengthening thermal treatment and twice tempering dispersion hardening thermal treatment, then a rustproof coating is coated on the outer wall of the tube through electrostatic spraying, finally a water glass nanometer composite coating prepared through testing is sprayed on the inner wall of the tube, and a high temperature oxidation resistant anticorrosive coating film inner layer is obtained after high temperature curing and cooling. The obtained metal tube has high hardness and abrasion resistance, and the anticorrosive coating of the metal tube has excellent waterproof performance, antifouling effect and high temperature resistance.
Owner:江阴德耐特重工科技有限公司
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