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43 results about "Polyaziridine" patented technology
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Reduction of monomer content and stabilization of polyaziridines
The invention relates to a process for reducing the monomeric aziridine content in a polyaziridine forming reaction mixture by adding to the polyaziridine forming reaction mixture an excess of a carbodiimide scavenger wherein the excess is based on the equivalent ratio of scavenger to monomeric aziridine, and to a product obtained by this process and to a coating composition containing the product obtained by the process.
Owner:RGT UNIV OF MICHIGAN +1
Crosslinkable acrylate adhesive polymer composition
InactiveUS8524836B2Reduce sensitivityIncreased shear strengthSynthetic resin layered productsEster polymer adhesivesSolventPolyaziridine
Owner:3M INNOVATIVE PROPERTIES CO
Environment-friendly high strength profile control water shut-off agent and preparation method thereof
The invention discloses an environment-friendly high strength profile control water shut-off agent and a preparation method thereof, and aims to solve the problems that conventional water shut-off agents are pollutant, and long-term use of the conventional water shut-off agent will pollute the environment and harm the human body. The water shut-off agent is composed of high polymers, a cross-linking agent, a catalyst, an antioxidant, and water. Through the organic cooperation among high polymers, a cross-linking agent, and a catalyst, a high strength, environment-friendly, and non-toxic profile control water shut-off agent is prepared, and the water shut-off agent can be widely applied to water shut-off operations of various oil reservoir profile controls. Polyaziridine is taken as the cross-linking agent, and the prepared gel has the advantages of deeper processing ground layer, higher strength, better stability, environment-friendliness, and no toxicity. Experiment results have proven that the water shut-off agent can well improve the profile performance and the water shut-off performance, is capable of being applied to the oil fields, and can improve the development effect of oil field water injection. The water shut-off agent is compounded by high polymers, a cross-linking agent, an antioxidant, and the like, and can be widely applied to water shut-off operations of various oil reservoir profile controls.
Owner:浙江仁智股份有限公司
Preparation method of polyurethane/carboxymethyl chitosan/polyaniline conductive film
The invention relates to the technical field of composite conductive materials, in particular to a preparation method of a polyurethane / carboxymethyl chitosan / polyaniline conductive film. The preparation method comprises the steps: firstly, mixing a polyurethane water dispersion solution, a chitosan solution and a polyaziridine cross-linking agent solution, dipping a film into an acidic solution containing an aniline monomer for curing after film coating, adding an acidic solution containing an oxidizing agent into a coagulation bath after formation, enabling aniline to produce polymerizationreaction so as to generate polyaniline, and finally obtaining the polyurethane / carboxymethyl chitosan / polyaniline composite conductive film, wherein the prepared polyaniline not only grows on the surface of PU, but also grows and polymerizes in the interior so that the formed polyaniline film can not only cover the surface of the PU matrix film, but also penetrate into the film, the effective adsorption of polyaniline is really completed, and the composite material has excellent conductivity. Compared with an existing method for preparing the polyurethane composite conductive film, the methodhas the advantages that the preparation process conditions are easy to achieve, and the conductive property of the composite material is excellent.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Degradable acid-sensitive polyaspartamide copolymer and its preparation method and use
InactiveCN104592522AImprove bioavailabilityQuick releasePharmaceutical non-active ingredientsAntineoplastic agentsL-AspartateAziridine
The invention discloses a preparation method of a degradable acid-sensitive polyaspartamide copolymer and a use of the degradable acid-sensitive polyaspartamide copolymer as a drug and a gene co-transmission nanoparticle. Hydrophilic and hydrophobic sections of the degradable acid-sensitive polyaspartamide copolymer respectively comprise aziridine-grafted polyaspartic acid and acetalated dextran, and a molecular weight ratio of the aziridine-grafted polyaspartic acid to acetalated dextran is 1: 1-10. The preparation method comprises that dextran undergoes an acetalation reaction, the reaction product is bonded to nitrine-terminated poly(b-benzyl-L-aspartate), through a benzyl ester aminolysis reaction, and the combined product is bonded to polyaziridine so that an acetalated dextran-polyaziridine-grafted polyaspartic acid derivative with acid sensitivity and degradability is prepared. The copolymer can form nanoparticles with uniform particle sizes and stability by a double emulsification method, and can be combined with a carrying drug and a gene and realizes targeting conveying to tumor cells so that tumor chemotherapy and gene treatment synergism is obtained. The copolymer has a wide application prospect in the field of tumor treatment.
Owner:SUN YAT SEN UNIV
High-electromagnetic-wave-reflection unmanned automobile coating composition and application thereof
ActiveCN112226143AGood compatibilityEffective reflectionPolyurea/polyurethane coatingsEpoxy resin coatingsEpoxyCellulose
The invention discloses a high electromagnetic wave reflection unmanned automobile coating composition and an application thereof, the viscosity is 20-25s, the high-electromagnetic-wave-reflection unmanned automobile coating composition is composed of epoxy resin, polyurethane, polyaziridine, hydroxymethyl cellulose, COFs coated carbon fiber, p-xylylenediamine and water, and the COFs coated carbonfiber is composed of aminated carbon fiber, a dialdehyde monomer, 1,3,5-tri(4-aminophenyl) benzene, TEMPO, n-diisopropylethylamine and CuI. The introduced COFs can effectively improve the compatibility of the carbon fiber and the matrix resin; the COFs coated carbon fiber containing stable free radicals TEMPO can provide free electrons, an induction field is generated under electromagnetic wave radiation, and then electromagnetic waves can be effectively reflected.
Owner:XIAMEN UNIV
Primer for plastic with inorganic film, plastic with inorganic film, decorative film for inner mold forming and decorative film for insert part forming
InactiveCN102167942AHigh glossExcellent adhesionSynthetic resin layered productsCoatingsVitrificationCarboxylic acid
The invention provides a novel primer for producing a plastic with an inorganic film, which is closely connected to the inorganic film and a plastic substrate, and will not generate cracks that can be seen by eyes, interference fringes and obvious whitening parts on the inorganic film even the plastic with inorganic film is processed under high temperature. The primer uses an acrylic acid copolymer (A) having carboxylate anion group with a vitrification temperature of minus 5-120 DEG and a polyaziridine compound (B) having at least three aziridinyls.
Owner:ARAKAWA CHEM IND LTD
Biomimetic polymer filtrate reducer for drilling fluid
The invention discloses a biomimetic polymer filtrate reducer for drilling fluid. The filtrate reducer is prepared from the following raw materials in parts by weight: 400 to 500g of modified lignin, 260 to 300g of 20 percent NaOH solution, 400 to 800g of 60 percent sodium hydroxymethyl sulfonate solution, 100 to 180g of polyaziridine and a small amount of defoaming agent. In the preparation process of the filtrate reducer, the ultrahigh adhesion characteristic of catechol groups in mussel byssus protein is utilized, so that the filtrate reducer has the functions of blocking micropores and improving the strength. The modified lignin with catechol groups is obtained by activating and modifying the brown rot lignin, and the modified lignin can be further crosslinked in the drilling fluid to form a gel film with strong cohesion and adhesiveness by utilizing the strong adhesion characteristic of the modified lignin in water, so that a filter cake formed by the drilling fluid is more compact, micropores are blocked, the toughness and strength of the filter cake are improved, and the drilling fluid can be used for drilling fluid. And finally, a low-permeability, flexible, thin and compact filter cake is formed, and the filter loss of the drilling fluid is effectively reduced.
Owner:中石化石油工程技术服务有限公司 +1
A kind of preparation method of polyurethane/carboxymethyl chitosan/polyaniline conductive film
Owner:ZHONGYUAN ENGINEERING COLLEGE
Preparation method of copper sulfide/polyaziridine/polyacrylonitrile composite conductive material
The invention relates to the field of composite conductive materials, and especially relates a preparation method of a copper sulfide / polyaziridine / polyacrylonitrile composite conductive material. Thepreparation method comprises the following steps: mixing of a dimethylformamide solution of polyacrylonitrile with an aqueous solution of the polyaziridine crosslinking agent, film coating, immersionin a coagulation bath solution for solidification, and a chemical reaction process for preparing the copper sulfide / polyaziridine / polyacrylonitrile composite conductive material. A polyacrylonitrilefilm blend-modified with the polyaziridine crosslinking agent has a good flexibility, and water in the aqueous solution of the polyaziridine crosslinking agent acts as a pore forming agent in the process of film formation. The polyaziridine crosslinking agent / polyacrylonitrile film has a continuously distributed network pore structure, so the conductive copper sulfide is deposited on the surface of the flexible film, also grows in the flexible film, and the formed copper sulfide can cover the surface of the flexible substrate film and penetrates into the film to truly complete the effective loading of the copper sulfide, thereby the composite material has an excellent conducting performance.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Polyethylene foam material and preparation method thereof
The invention relates to the field of materials, in particular to a polyethylene foam material and a preparation method thereof. The polyethylene foam material comprises the following components in parts by weight: 10-25 parts of low-density polyethylene, 0.5-2 parts of mica powder, 1-2 parts of maleic anhydride grafted polyethylene, 5-10 parts of chitosan, 1-3 parts of a polyaziridine cross-linking agent, 1-3 parts of a flame retardant and 2-4 parts of a foaming agent. Through cooperation and interaction of different components, the prepared polyethylene foam material is obviously improved in structural stability, mechanical strength, heat resistance and flame retardant effect, meanwhile, the components have antibacterial and preservative effects, and breeding of bacteria and fungi in high-humidity environments such as fruit packaging and the like can be effectively reduced.
Owner:SHIJIAZHUANG QIHONG RUBBER PLASTIC PROD
Aqueous environment-friendly spray adhesive and preparation method thereof
InactiveCN111154411AReduce displacementPromote environmental protectionNon-macromolecular adhesive additivesOrganic non-macromolecular adhesiveAdhesiveMethacrylate methyl
The invention discloses an aqueous environment-friendly spray adhesive and a preparation method thereof. The aqueous environment-friendly spray adhesive comprises the following raw materials: naturallatex, methyl methacrylate, an aqueous tackifying emulsion, an acrylic emulsion, a polyaziridine crosslinking agent, a pH regulator, nano kaolin, a thickening agent, a leveling agent, an antioxidant,ethoxyl phenol ether ammonium sulfate, distearate, disodium hydrogen phosphate and deionized water. Water is used as a solvent; VOC emission is low, environmental friendliness is good, oily substancesin the spray adhesive can be effectively removed through ethoxyl phenol ether ammonium sulfate, a flat, smooth and uniform film can be formed in the drying and film forming process of the coating through the leveling agent, the surface tension of the coating can be effectively reduced, the bonding strength of the coating can be effectively improved, the spraying surface is flat, and use is convenient.
Owner:GUANGDONG ORIENT RESIN
Preparation method of flexible conductive material taking copper sulfide and carbon nanotubes as composite conductive agents
The invention relates to the field of conductive materials, in particular to a preparation method of a flexible conductive material taking copper sulfide and carbon nanotubes as composite conductive agents. The method comprises the steps as follows: firstly, mixing a dimethylformamide solution of polyacrylonitrile with an aqueous dispersion of carbon nanotubes / aziridine cross-linking agent, immersing a product in a coagulation bath solution for curing after film coating, and preparing the flexible conductive material taking copper sulfide and carbon nanotubes as the composite conductive agentsby a chemical reaction on the basis. A polyacrylonitrile film obtained by blending modification of a carbon nanotube / aziridine cross-linking agent has good flexibility, and furthermore, water in thedispersion plays the role of a pore-forming agent in the membrane forming process. The polyaziridine cross-linking agent / polyacrylonitrile film has a continuously distributed network pore structure, so that conductive copper sulfide is not only deposited on the surface of a flexible film, but also grows in the inside, formed copper sulfide can not only cover the surface of the flexible substrate film, but also penetrate to inside of the film, and the composite material has excellent conductive performance.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Preparation method of carboxyl nitrile rubber composite membrane for electromagnetic shielding
InactiveCN110157022AImprove adsorption capacityGood electromagnetic shieldingMaterials preparationEmulsion
The invention relates to the technical field of functional material preparation, and in particular relates to a preparation method of a carboxyl nitrile rubber composite membrane for electromagnetic shielding. The preparation method comprises the following steps: firstly, mixing nano carbon black, a carboxyl nitrile rubber emulsion and a polyaziridine cross-linking agent solution, carrying out film coating, immersing the obtained film into a solution containing copper sulfate for curing, and adding a sodium thiosulfate water solution into the copper sulfate solution after the film is formed, and carrying out heating for a reaction to generate copper sulfide by adopting a chemical bath method to finally obtain the carboxyl nitrile rubber composite film for electromagnetic shielding. The copper sulfate prepared by the method not only grows on the surface of the nitrile rubber, but also is grown and polymerized in the inner part, so that the formed copper sulfate not only can cover the surface of a nitrile rubber substrate film, but also can penetrates into the inner part of the film, so that effective adsorption of copper sulfide is really completed, and the composite material has excellent electromagnetic shielding performance.
Owner:ZHONGYUAN ENGINEERING COLLEGE
New water-based environmental-protection material for replacing PET matt membrane and preparation method thereof
ActiveCN108300230ACause harmImprove wear resistancePolyurea/polyurethane coatingsWater basedAdhesion force
The invention discloses a new water-based environmental-protection material for replacing a PET matt membrane and a preparation method thereof. The new water-based environmental-protection material for replacing the PET matt membrane includes a raw material A, a raw material B and a raw material C, wherein the raw material A comprises the following components: water-based frosted gloss oil, pure water, polyamine wear-resistant microspheres, nano silicon dioxide, an organic extinction agent and a leveling agent; the raw material B includes pure water; the raw material C includes carbodiimide and polyaziridine; the water-based frosted gloss oil includes water-based polyurethane resin, ethanol and a film forming auxiliary agent. The prepared new water-based environmental-protection material for replacing the PET matt membrane has the main components of water-based substances, cannot cause harm to human bodies, and has the advantages of strong adhesion force, low matte degree and good appearance effect. The preparation method is suitable for promotion, and the quality of the product is better.
Owner:ZHEJIANG CHENGDE PACKAGING
Volatile waterborne polyurethane coating
PendingCN113480931AImprove adhesionImprove finishing performancePolyurea/polyurethane coatingsTextiles and paperAdhesiveAziridine
The invention discloses a volatile waterborne polyurethane coating and a preparation method thereof. The coating comprises the following components in parts by weight: 15 to 45 parts of neopentyl glycol, 5 to 20 parts of adipic acid, 10 to 30 parts of benzenetrimellitic anhydride, 5 to 15 parts of tetraisopropyl titanate, 20 to 30 parts of xylene, 10 to 30 parts of acetone, 15 to 30 parts of 10% phosphoric acid (toluene) liquid, 10 to 20 parts of 50% phenol (toluene) liquid, 5 to 15 parts of N-toluene diethanolamine, 10 to 30 parts of triethylamine, 5 to 15 parts of ethylenediamine, 5 to 15 parts of organic silicon resin, 20 to 40 parts of an adhesive, 10 to 30 parts of a thickening agent and 10 to 30 parts of deionized water. According to the volatile waterborne polyurethane coating, the organic silicon resin is added, so that the adhesiveness between different substrates for synthetic leather and a polyurethane coating material can be enhanced, the coating property and the adhesive force are correspondingly improved, meanwhile, the hydrolysis-resistant and smooth feeling is brought, and the volatile waterborne polyurethane coating can replace a toxic polyaziridine cross-linking agent.
Owner:清远市美佳乐环保新材股份有限公司
Glass mat reinforcement
A glass mat is provided. The glass mat includes an assembly of glass fibers; and a binder composition including a polymer resin and a crosslinker. The polymer resin has a pH of at least about 5.0. Thepolymer resin includes a styrenic copolymer, an acrylic copolymer, or combination thereof having at least one functional group of a carboxylic acid, a salt of a carboxylic acid, an anhydride, a saltof an anhydride, or combination thereof. The crosslinker includes a polyol, a polyepoxy, a polycarbodiimide, a polyaziridine, a bivalent metal carbonate, or combination thereof. Further provided is amethod of making the glass mat.
Owner:SAINT GOBAIN ADFORS CANADA LTD
Preparation method of flexible carboxylated nitrile butadiene rubber composite conductive film
ActiveCN110204759AImprove adsorption capacityImprove conductivityMaterials preparationComposite film
The invention relates to the technical field of functional material preparation, and especially relates to a preparation method of a flexible carboxylated nitrile butadiene rubber composite conductivefilm. The preparation method comprises the following steps: mixing of a carboxylated nitrile butadiene rubber emulsion with a polyaziridine crosslinker solution, film coating, immersion in a copper sulfate-containing solution for solidification, addition of an aqueous sodium thiosulfate solution to the copper sulfate solution after molding, heating, and a chemical bath process reaction for finally obtaining the carboxylated nitrile butadiene rubber composite conductive film. The copper sulfate prepared by the method grows on the surface of the nitrile butadiene rubber, and also grows and polymerizes inside the nitrile butadiene rubber, so the formed copper sulfate covers the surface of a nitrile butadiene rubber matrix film and penetrates into the film to completely complete the effectiveadsorption of copper sulfide, thereby the composite film has an excellent conductive property.
Owner:ZHONGYUAN ENGINEERING COLLEGE
A new water-based environmental protection material used to replace PET dumb film and its preparation method
ActiveCN108300230BCause harmImprove wear resistancePolyurea/polyurethane coatingsMicrosphereCarbonization
Owner:ZHEJIANG CHENGDE PACKAGING
Coating compositions capable of producing surfaces with dry-erase properties
Disclosed are waterborne coating compositions that include: (a) a base-neutralized carboxylic acid functional polyacrylate; and (b) a water-miscible polyaziridine, in which the composition is substantially free of isocyanate functionality. Also disclosed are methods of using such compositions to produce a dry-erase surface and kits that include such compositions.
Owner:COVESTRO LLC +1
Preparation method of carboxyl nitrile rubber composite film for electromagnetic shielding
The invention relates to the technical field of functional material preparation, and concretely relates to a preparation method of a carboxyl nitrile rubber composite film for electromagnetic shielding. The preparation method comprises the following steps: firstly, mixing nano-carbon black, a carboxyl nitrile rubber emulsion and a polyaziridine cross-linking agent solution, coating for preparing afilm, immersing the film into a solution containing copper sulfate for curing, adding an aqueous sodium thiosulfate solution into the copper sulfate solution after molding, heating, and reacting by adopting a chemical bath method to generate copper sulfide, thereby finally obtaining the carboxyl nitrile rubber composite film for electromagnetic shielding. The copper sulfate prepared by the methodnot only grows on the surface of the nitrile rubber, but also grows and polymerizes in the nitrile rubber, so that the formed copper sulfate not only can cover the surface of a nitrile rubber matrixfilm, but also penetrates into the film, the effective adsorption of copper sulfide is truly completed, and the composite material has excellent electromagnetic shielding performance.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Leather finishing composition with washable jeans style and leather manufacturing process
ActiveCN110669421ADoes not affect the feelDoes not affect colorPolyurea/polyurethane coatingsLeather surface finishingDenimSheep skin
The invention provides a leather finishing composition with washable jeans style and a leather manufacturing process, and relates to the field of leather production and manufacturing. According to theinvention, blue pigment paste contained in the coating composition is used, in the production process, a roller coater with sheepskin lines is used for coating the surface of leather with the coatingcomposition in a rolling mode, milling is conducted under the condition that the coating composition is not completely dried, and therefore the style of a leather finished product produced and manufactured through the method is similar to that of jeans cloth; a polyaziridine cross-linking agent is added into the coating composition for cross-linking, so that the leather coating has the characteristics of water resistance, washing resistance and high temperature resistance; the innovation point of the coating composition is that more grease and wax are added into the coating composition, and the grease, the wax and the cross-linking agent can be cross-linked, so that the strength and the flexibility of a coating film are favorably improved, and this is also the reason why the leather produced by the invention can be washed with water without affecting the leather hand feeling and color.
Owner:JIAXING UNIV +1
A kind of high ultrasonic reflection unmanned automobile coating composition and its application
ActiveCN112194962BImprove fitNot easy to fall offPolyurea/polyurethane coatingsEpoxy resin coatingsEpoxyMeth-
The invention discloses a high-ultrasonic-reflecting unmanned vehicle coating composition and its application. Its viscosity is 20-25s, and it is composed of epoxy resin, polyurethane, polyaziridine, hydroxymethyl cellulose, and tungsten-coordinated COF materials. , p-xylylenediamine and water, wherein the tungsten-coordinated COF material is made of COF material and tungsten chloride, and the COF material is composed of 1,3,5-tris(4-aminophenyl)benzene and dialdehyde mono Made from raw materials inside the body. The present invention uses tungsten and other heavy metals with high acoustic impedance as filler particles, which can significantly enhance the acoustic wave reflection efficiency of the coating and achieve the purpose of preparing a high-reflection coating; by coordinating the heavy metal particles with the COF structure and then introducing the reflection layer, it is beneficial The uniform dispersion of heavy metal particles in the coating can effectively prevent the migration of heavy metal particles in the coating.
Owner:XIAMEN UNIV
A preparation method of multi-walled carbon nanotube/copper sulfide composite electromagnetic shielding film
ActiveCN110218377BImprove adsorption capacityGood electromagnetic shieldingMagnetic/electric field screeningPolymer scienceCarbon nanotube
Owner:海宁市徐达特种薄膜有限公司
Glue for water-based spray glue, water-based spray glue and preparation method thereof
ActiveCN108410392BGood viscosity increasing effectImprove initial tackMineral oil hydrocarbon copolymer adhesivesNon-macromolecular adhesive additivesPolymer scienceCross linker
Owner:DONGGUAN SIDECO RESIN
A kind of room temperature self-crosslinking water-based epoxy ester and preparation method thereof
ActiveCN107216443BImprove cohesionImprove corrosion resistanceAnti-corrosive paintsEpoxy resin coatingsWater basedEpoxy
The invention relates to the technical field of water-based paint, and particularly relates to a room temperature self-crosslinking water-based epoxy ester and a preparation method thereof. The preparation method comprises the following steps: putting 26-32 parts by mass of linoleic acid, 12-16 parts by mass of epoxy resin E-20, 8.5-12.5 parts by mass of epoxy resin E-03, 4.8-7.5 parts by mass of benzoic acid, 2.2-3.8 parts by mass of phthalic anhydride and 0.2 part by mass of antioxidant into a reaction kettle, performing heating to 120 DEG C, and starting stirring; performing heating to 160 DEG C, and keeping the temperature for 1 hour; performing heating to 180 DEG C, and keeping the temperature for 1 hour; performing final heating to 240 DEG C, and keeping the temperature for 3-4 hours; performing cooling to 160 DEG C, adding 0.5-2 parts by mass of polyaziridine, and keeping the temperature for 1 hour; and performing further cooling to 120 DEG C, adding 18-25 parts by mass of ethylene glycol butyl ether, and performing uniform stirring to obtain the product. Through a crosslinking reaction of the polyaziridine and carboxyl groups in the epoxy resin, the room temperature self-crosslinking water-based modified epoxy ester resin having water resistance, corrosion resistance and high substrate adhesion force is synthesized.
Owner:绍兴长木新材料科技有限公司
A kind of preparation method of flexible carboxylated nitrile rubber composite conductive film
The invention relates to the technical field of preparation of functional materials, in particular to a method for preparing a flexible carboxylated nitrile rubber composite conductive film. First, mix the carboxylated nitrile rubber emulsion and the polyethylenimine crosslinking agent solution. After coating the film, immerse it in a solution containing copper sulfate for curing. After molding, add an aqueous solution of sodium thiosulfate to the copper sulfate solution, and use a chemical bath to raise the temperature. Copper sulfide was generated by the reaction method, and finally a carboxylated nitrile rubber composite conductive film was obtained. The copper sulfate prepared by this method not only grows on the surface of the nitrile rubber, but also grows and polymerizes inside, so that the formed copper sulfate can not only cover the surface of the nitrile rubber matrix film, but also penetrate into the inside of the film, truly completing the copper sulfide process. The effective adsorption makes the composite material have excellent electrical conductivity.
Owner:ZHONGYUAN ENGINEERING COLLEGE
Fluoropolymer coatings comprising aziridine compounds and non-fluorinated polymer
A fluoropolymer coating composition is described comprising an aqueous liquid medium, fluoropolymer particles dispersed in the aqueous liquid medium, and at least one aziridine compound. The aziridine compound comprises at least two aziridine groups (i.e. polyaziridine) or at least one aziridine group and at least one alkoxy silane group. In another embodiment, an article is described comprising a substrate wherein a surface of the substrate comprises a coating comprising fluoropolymer particles; and a reaction product of at least one aziridine compound comprising at least two aziridine groups or at least one aziridine group and at least one alkoxy silane group. The coating can be utilized as a primer for bonding a non-fluorinated substrate to a fluoropolymer film and / or the coating can be used as an (e.g. outer exposed) surface layer. In some embodiments, the article may be the (e.g. backside) film of a photovoltaic module.
Owner:GREENEDEN U S HLDG II LLC
Dispersing agent for improving softness and toughness of cathode plate
PendingCN111690134AGood flexibilityImprove conductivityTransportation and packagingCell electrodesPolymer scienceButanedioic acid
Owner:JIANGSU DAOYING TECH CO LTD
A preparation method of flexible conductive material using copper sulfide and carbon nanotube as composite conductive agent
The invention relates to the field of conductive materials, in particular to a method for preparing a flexible conductive material using copper sulfide and carbon nanotubes as composite conductive agents. First, the dimethylformamide solution of polyacrylonitrile is mixed with the carbon nanotube / aziridine crosslinking agent water dispersion, and after coating, it is immersed in the coagulation bath solution for curing. On this basis, the chemical reaction method is used to prepare the following: Copper sulfide and carbon nanotubes are flexible conductive materials for composite conductive agents. The polyacrylonitrile membrane modified by blending carbon nanotubes / polyethylenimine cross-linking agent not only has good flexibility, but also the water in the dispersion acts as a pore-forming agent in the process of membrane formation. The polyethylenimine crosslinking agent / polyacrylonitrile film has a continuous distribution of network holes, so that the conductive copper sulfide is not only deposited on the surface of the flexible film, but also grows inside, so that the formed copper sulfide can not only cover the flexible substrate film The surface, but also penetrates into the interior of the film, so that the composite material has excellent electrical conductivity.
Owner:ZHONGYUAN ENGINEERING COLLEGE
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