169 results about "Biethylene" patented technology

The preparation method comprises the following steps: weighing oleic acid and a catalyst, adding the weighed oleic acid and catalyst into a reaction container, heating by stages by adopting a programmable electric heating jacket, respectively dropwise adding a water carrying agent at 80-100 DEG C, dropwise adding diethylenetriamine or triethylene tetramine at 110-130 DEG C, controlling the reaction temperature and time, and reacting for 2-4 hours to obtain the compound corrosion inhibitor for the CO2 oil displacement produced liquid. After water is separated out, further reaction is carried out at 200-230 DEG C, then the system is cooled to 60-70 DEG C, a quaternization reagent is added for reaction, and a corrosion inhibitor E and a corrosion inhibitor S are prepared respectively; finally, the corrosion inhibitor E and the corrosion inhibitor S are compounded according to a certain proportion, and the compound corrosion inhibitor for the CO2 oil displacement produced liquid is obtained. The preparation method is simple and easy to implement, and the cost can be reduced; when the prepared corrosion inhibitor is applied to CO2 oil displacement produced liquid corrosion inhibition, an excellent corrosion inhibition effect can be shown, and corrosion hazards in CO2 oil displacement application are greatly reduced.

The invention provides three-vinylon rib and microcapsule self-repairing concrete and a preparation method thereof, and belongs to the technical field of building materials. Basalt fibers and polyvinyl alcohol fibers are blended, and obtained blended fibers are subjected to determinant three-dimensional weaving to prepare three-dimensional composite fibers; and soaking the three-dimensional composite fiber in epoxy resin, coating a mixture of diethylenetriamine and ethylenediamine, drying and curing to obtain the three-vinylon rib. And coating the epoxy resin with polyphenylene sulfide to prepare the microcapsule. And then mixing the three-vinylon rib and the microcapsule with concrete slurry to prepare the three-vinylon rib and microcapsule self-repairing concrete. The compressive strength and breaking strength of the three-vinylon rib and microcapsule self-repairing concrete obtained by adopting the method are remarkably improved, and meanwhile, the three-vinylon rib and microcapsule self-repairing concrete also has excellent self-repairing capability.

The invention provides degradation liquid capable of degrading amine cured epoxy resin, a degradation recovery method and a regeneration method of the amine cured epoxy resin. The degradation liquid comprises an amine compound, an inorganic alkali solution and water. Wherein the ratio of the amine compound is 15%-30%, the ratio of the inorganic alkali solution is 6%-20%, and the balance is water; the amine compound comprises monoethanolamine, diethylenetriamine and triethylene tetramine in a volume ratio of 1: (1-2): (1-2). In the degradation liquid disclosed by the invention, monoethanolamine realizes amidation of degradable weak bonds in an epoxy resin cured substance under the promotion of diethylenetriamine and triethylene tetramine, and realizes degradation of amine cured epoxy resin; the degradation liquid provided by the invention can be used for rapidly and completely degrading a degradable epoxy resin cured product at a relatively low degradation temperature (about 100 DEG C), the degradation product is simply separated and purified to resynthesize the degradable epoxy resin, and the degradation liquid can be recycled through simple distillation.

The disclosure relates to a multi-layered laminate comprising multiple metal foil layers and multiple dielectric (insulating) layers. At least one of the insulating layers includes a copolymer containing diisoalkenylarene (DIAEA) and divinylarene (DVA) units, optionally combined with a filler and / or another dielectric polymer. Another insulating layer includes another dielectric polymer distinct from the DIAEA-DVA copolymer. At least one copolymer-containing insulating layer is positioned adjacent to a metal foil layer. This copolymer layer enhances thermal stability at elevated temperatures and provides improved electrical performance such as reduced dielectric constant (Dk) and dissipation factor (Df) along with excellent processability.

Sorbent material capable of reversibly binding carbon dioxide, for separating gaseous carbon dioxide from a gas mixture, preferably from at least one of ambient atmospheric air (1), flue gas and biogas, preferably for direct air capture, in particular using a temperature, vacuum, or temperature / vacuum swing process, wherein said sorbent material (3) is a particulate copolymeric material based on at least one of amino mono allyl and amino mono vinyl monomeric building blocks or precursors thereof copolymerized and cross-linked with divinyl building blocks, wherein the at least one of amino mono allyl and amino mono vinyl monomeric building blocks or precursors thereof are non-aromatic monomeric building blocks with 2 - 4 carbon atoms, and wherein the molar proportion of the divinyl building blocks to the sum of the divinyl building blocks and the at least one of amino mono allyl and amino mono vinyl monomeric building blocks or precursors thereof and, if present, further building blocks, is in the range of 10-20%.

The invention discloses an imidazole polymer electrolyte membrane in an energy storage lithium battery, and a preparation method and application thereof, and belongs to the field of polymer electrolyte. The method comprises the following steps: reacting 1-ethylimidazole with n-butyl bromide to prepare brominated 1-ethyl-3-butylimidazole; the preparation method comprises the following steps: preparing 1-ethyl-3-butylimidazole bis (fluoromethane sulfonyl) imide salt from brominated 1-ethyl-3-butylimidazole and lithium bis (fluoromethane sulfonyl) imide; the preparation method comprises the following steps: uniformly mixing 1-ethyl-3-butylimidazolium bis (fluoromethane) sulfonimide salt, polyethylene glycol methyl ether methacrylate, acrylonitrile, lithium bis (trifluoromethane) sulfonimide, divinylbenzene and benzoin diethyl ether, coating and curing to obtain the imidazolium ionic liquid polymer electrolyte membrane. According to the imidazolium ionic liquid polymer electrolyte membrane, integration of triple functions of rigid framework-flexible transmission-interface stability is realized, and the electrical property and the mechanical property of the membrane are remarkably improved.

The present invention relates to a composite boron powder and a preparation method thereof. The composite boron powder is prepared by a secondary condensation method using a vinylidene fluoride / propylene alcohol copolymer as a compounding agent, a polyethylene glycol monobutyl ether acrylate / acrylonitrile / allylamine / hydroxyethyl acrylate copolymer as an auxiliary compounding agent, an epoxy resin as a high-strength composite adhesive, and diethylenetriamine as a curing agent. The amounts of the components are based on the mass of the boron powder: the mass of the vinylidene fluoride / propylene alcohol copolymer is 1-2% of the mass of the boron powder, the mass of the polyethylene glycol monobutyl ether acrylate / acrylonitrile / allylamine / hydroxyethyl acrylate copolymer is 0.3-1% of the mass of the boron powder, the mass of the epoxy resin is 2-3% of the mass of the boron powder, and the mass of the diethylenetriamine is 0.15-0.4% of the mass of the boron powder.

The preparation process comprises the following steps: performing vacuum dehydration on alpha, omega-divinyl polydimethylsiloxane and phenyl siloxane under the protection of inert gas to prepare a basic rubber material; then adding the modified nano silicon dioxide filler in batches in a gradient manner, and dispersing at a stepped rotating speed to form a uniformly mixed sizing material; then polycarbonate powder treated by a silane coupling agent is introduced for high-speed dispersion to form a component A precursor, and after the component A precursor is mixed with a component B containing a hydrogen silicone oil cross-linking agent / platinum catalyst, the self-adhesive silicone rubber with high interface bonding force is prepared by adopting a stepped temperature procedure; according to the method, the bonding strength of polycarbonate powder is improved through gradient filler dispersion in batches, the tensile strength of the material is improved through silane treatment, the curing reaction rate is matched with the interface wetting speed through a stepped curing procedure, the strength is kept while rapid curing is conducted, and the effects of high bonding strength and rapid curing are effectively achieved.

The invention discloses an additive for a vanadium battery electrolyte, the electrolyte and a preparation method of the electrolyte. The additive comprises an inorganic additive and an organic additive, the inorganic additive comprises magnesium aluminum silicate and modified nano silicon dioxide; the organic additive is prepared from diethylenetriamine and chitosan. The mass ratio of the inorganic additive to the organic additive is 3: (1.5-2.5); the mass ratio of the magnesium aluminum silicate to the modified nano silicon dioxide is 1: (1.2-1.5); the mass ratio of the diethylenetriamine to the chitosan is (0.8-1): 3.5. By utilizing the synergistic effect of the components of the additive, the oxidation of divalent vanadium ions can be effectively inhibited, the self-agglutination of pentavalent vanadium ions is prevented, the precipitation of the pentavalent vanadium ions is prevented, the stability of the vanadium battery electrolyte is greatly improved, the added additive has no influence on the acidity and viscosity of the vanadium battery electrolyte, and the service life of a vanadium battery electrolytic stack is prolonged.

The present application relates to a kind of carbon dioxide mineralization method and carbon dioxide mineralization device.The carbon dioxide mineralization method includes the following steps: mixing absorption liquid and industrial solid waste at room temperature, obtain mortar;Make mortar solid-liquid separation, obtain clear liquid and thick slurry;Carbon dioxide in flue gas is absorbed by clear liquid, obtain carbon-rich absorption liquid;Carbon-rich absorption liquid and thick slurry occur mineralization reaction at 180 DEG C-220 DEG C, obtain mineralized slurry;Make mineralized slurry solid-liquid separation, obtain mineralized ash and mineralized clear liquid;Wherein, absorption liquid includes inorganic base and organic base, organic base includes monoethanolamine, diethanolamine, triethanolamine, 3-methylaminopropylamine, N-methyl diethanolamine, piperazine, diethylene triamine, triethylene tetramine, tetraethylene pentamine and 2-amino-2-methyl-1-propanolamine at least two kinds.The method greatly improves CO2 capture rate and CO2 utilization rate, and organic base consumption is less, absorption liquid regeneration energy consumption is low, and overall economy is good.

The application discloses an oil and gas field polymer solution viscosity protection system with improved ferrous ion tolerance, and belongs to the technical field of oil and gas field chemicals.The system comprises the following components in mass percentage: 5-10% of a ferrous ion stabilizer, 10-20% of a free radical capturing agent, 10-20% of a structure reinforcing agent, 5-10% of a synergist, and the balance of water; the ferrous ion stabilizer is at least one selected from sodium gluconate, potassium gluconate, diethylene triamine pentaacetic acid and hydroxyethylidene diphosphonic acid; the free radical capturing agent is a compound containing phenolic hydroxyl; the structure reinforcing agent is an imidazoline compound; and the synergist is an aldehyde compound.The application method of the viscosity protection system is as follows: the viscosity protection system is first added into liquid water, polymer powder is then added, a gel breaker is further added, and stirring is uniformly performed to obtain a polymer solution.The viscosity protection system significantly reduces the influence of ferrous ions on the viscosity of the polymer solution, and improves the application effect of polyacrylamide substances in the field of oil and gas fields.

The invention provides a preparation method of a non-bulking waterproof moisture-permeable TPU film, and belongs to the technical field of TPU film preparation, and the preparation method of the non-bulking waterproof moisture-permeable TPU film comprises the following steps: stirring raw materials by a high-speed mixer for mechanical mixing; carrying out chemical reaction on the raw material, a divinylbenzene-ethyl acrylate-acrylamide copolymer and butylated hydroxytoluene, and adding tetrahydrofuran to adjust the viscosity of a reaction system, so as to obtain a TPU film material; heating, pressurizing and extruding the mixture through a screw extruder to form a film, plasticizing TPU particles into a semi-finished product, and filtering impurities and re-plasticizing on a filter of calendering equipment; carrying out annealing treatment, cooling in cold water, and pulling out the cooled TPU stretching film from a demolding opening of the demolding machine; the problems that an existing TPU film is poor in preparation size stability and prone to deformation can be solved.

The invention relates to the technical field of composite films for BIB packaging inner bags, and discloses a high-barrier single-material sterile BIB packaging bag and a preparation process thereof, the preparation process comprises the following steps: using vanillin, 3-bromopropene, gallic acid, diethylenetriamine and 1, 3-acetonedicarboxylic acid as raw materials to prepare a gallic acid type grafting monomer; the preparation method comprises the following steps: carrying out melt grafting modification treatment on LDPE (Low-Density Polyethylene) resin by using a gallic acid type grafting monomer, and compounding with graphene oxide through pi-pi accumulation action and hydrogen-bond interaction to prepare the graphene-polyethylene composite master batch with an antioxidant function; the preparation method comprises the following steps: preparing a polyethylene master batch, introducing the master batch into a seven-layer co-extruded film to prepare a polyethylene co-extruded film, and preparing the high-barrier single-material sterile BIB packaging bag by taking the co-extruded film as a raw material of an inner bag of the BIB packaging bag. The polyethylene co-extruded film prepared by the invention still shows excellent mechanical properties and barrier properties after being treated by a radiation sterilization technology, and can be used instead of an existing aluminized polyester bag.

The invention discloses melamine glazing powder and a preparation method thereof, and belongs to the technical field of melamine glazing resin. The method is used for solving the technical problems that in the prior art, a melamine glazing powder synthesis process is poor in surface brightness and smoothness and is not resistant to high temperature. The preparation method of the melamine glazing powder comprises the following steps: uniformly mixing and ball-milling a primary material, a lubricant, a curing agent, hybrid resin and poly-2, 2 '-(m-phenyl)-5, 5'-bis-benzimidazole to prepare the melamine glazing powder. Wherein methyl acrylate and divinylbenzene are subjected to suspension copolymerization to synthesize a suspension copolymer; 4-chloromethylstyrene is cross-linked with the suspension copolymer, and composite resin is prepared; and hydrolyzing tetraethyl orthosilicate in the composite resin to prepare the hybrid resin. When melamine and formaldehyde are subjected to polycondensation, p-toluenesulfonamide is adopted for modification, so that the smoothness and the brightness value of the prepared melamine glazing powder are improved. The melamine glazing powder prepared by the invention has the advantages of high surface brightness and smoothness and high temperature resistance.

The present invention relates to the technical field of anti-aging resins, and specifically discloses an anti-aging PPO resin for copper clad laminates and a preparation method thereof. In the present invention, aminated lignin is prepared by aminating lignin with a mixed solution of diethylenetriamine and 2,2'-dipyridine-6,6'-diamine, and ZnO / ZIF-8-NH is prepared by a one-pot method. 2 . The molecular weight of polyphenylene oxide is regulated by bisphenol A to obtain low-molecular-weight polyphenylene oxide. The low-molecular-weight polyphenylene oxide is reacted with a dispersion liquid of ZnO / ZIF-8-NH 2 and aminated lignin under certain conditions to obtain a composite additive. The polyphenylene oxide, the composite additive, and the epoxidized polyphenylene oxide are uniformly mixed to obtain the anti-aging PPO resin.

The invention provides polyester resin for a transparent powder coating with excellent adhesive force and leveling as well as a preparation method and application of the polyester resin, and belongs to the technical field of powder coatings. The polyester resin is mainly prepared by taking diethylenetriamine pentaacetic acid, triethyl chlorosilane, 1, 6-hexanediol, N, N-diisopropylethanolamine, 2, 2-dimethyl propanol, neopentyl glycol, 3, 3-tetramethylene glutaric anhydride, 1, 4-cyclohexanedimethanol and the like as raw materials through polymerization. The obtained polyester resin chain segment has many branched structures, the number of amino groups and ester groups in the branched structures is large, the softening point is low, the low-temperature melting fluidity is good, the transparency is high, the adhesive force with a base material is good, then high-functionality diethylenetriamine pentaacetic acid is adopted for carboxyl end capping, the terminal carboxyl functionality is high, the curing activity is high, and the curing effect is good. After being cured with E-12 epoxy resin at low temperature, a coating film is good in leveling property and high in transparency, and can be used in the fields of thermosensitive base materials which are not easy to adhere, such as thin glass materials and the like.

This invention discloses a fluorine-free, environmentally friendly nanomaterial for pretreatment of metal surfaces, its preparation method, and its application method, belonging to the field of coating pretreatment technology. The fluorine-free, environmentally friendly nanomaterial for pretreatment of metal surfaces provided by this invention includes ammonium zirconia nanoparticles and an adsorption modifier; the ammonium zirconia nanoparticles are obtained by coordination aggregation of ammonium ions and hydrated zirconium ions, and the adsorption modifier is obtained by reacting a metal oxide salt with diethylenetriaminepentamethylenephosphonic acid; the metal oxide salt includes one or more of hafnium, technetium, or antimony. The nanomaterial provided by this invention exhibits rapid film formation and high corrosion resistance on metal substrate surfaces. The material does not contain fluorine, avoiding fluorine pollution. The preparation and application processes are environmentally friendly and simple, and it has broad application prospects in the field of coating pretreatment.

The invention relates to a novel rubber material, in particular to white low-density flame-retardant silicone rubber as well as a preparation method and application thereof. The white low-density flame-retardant silicone rubber comprises first vinyl-terminated polysiloxane, second vinyl-terminated polysiloxane, hydrogen-containing polysiloxane, an acyloxy silane coupling agent, a platinum catalyst, an alkynol inhibitor, an inorganic flame-retardant filler, white carbon black and a synergistic flame-retardant system. The white low-density flame-retardant silicone rubber disclosed by the invention is liquid silicone rubber and has the advantages of white color, low density, excellent flame-retardant effect, good processability and the like.

The application discloses a pyrrole polymer electrolyte film in an energy storage lithium battery and a preparation method and application thereof, and belongs to the polymer electrolyte field. The method comprises the following steps: reacting 1-methyl pyrrolidine and bromine n-butane to prepare 1-methyl-1-butyl pyrrolidine bromide; preparing 1-methyl-1-butyl pyrrolidine difluoromethane sulfonimide salt ionic liquid by mixing the 1-methyl-1-butyl pyrrolidine bromide and lithium difluoromethane sulfonimide; mixing 1-methyl-1-butyl pyrrolidine difluoromethane sulfonimide salt ionic liquid, polyethylene glycol methyl ether methacrylate, acrylonitrile, lithium bistrifluoromethanesulfonimide, divinylbenzene and benzoin ethyl ether uniformly, coating and curing to obtain a pyrrole ionic liquid polymer electrolyte film. The application combines the molecular configuration of the pyrrolidine-based ionic liquid and the topological structure of the polymer network, realizes triple optimization of ion transmission-mechanical strength-interface stability.

The present application relates to the technical field of powder coatings, and more specifically, it relates to a wear-resistant pipeline powder and a preparation method thereof. A wear-resistant pipeline powder comprises the following raw materials in parts by weight: 20-30 parts of polyurethane powder, 40-50 parts of modified epoxy resin powder, 8-14 parts of curing agent, 15-25 parts of nano wear-resistant particles and 4-6 parts of auxiliary agent; the modified epoxy resin comprises adipic acid-based epoxy resin and bisphenol A-type epoxy resin, the curing agent is obtained by mixing diethylenetriamine and polyamide curing agent 650, and the wear-resistant particles are molybdenum disulfide / copper sulfide nano hybrid materials. The coating obtained by curing the pipeline powder of the present application has excellent low-temperature wear resistance and antibacterial properties.

The invention provides an azo dye adsorbent preparation method, which comprises: S1, carrying out alkali treatment on a pyrolytic coke raw material to obtain porous pyrolytic coke; s2, introducing inert gas into the organic amine solution to obtain inert gas carrying organic amine; the organic amine comprises at least one of diethanol amine, hydroxyethyl ethylenediamine and diethylenetriamine; and S3, placing the porous pyrolytic coke in a reactor, then introducing inert gas carrying organic amine into the reactor, and carrying out organic amine modification on the porous pyrolytic coke by adopting a low-temperature plasma technology to obtain the azo dye adsorbent. According to the method, the pyrolytic coke is adopted as the raw material, resource utilization of the waste heat pyrolytic coke is achieved while pollution is reduced, the waste heat pyrolytic coke obtains the use value again through recycling and reprocessing, and resource waste is effectively reduced. The azo dye adsorbent obtained by adopting the preparation method disclosed by the invention has an excellent adsorption effect and has a good application prospect in azo dye wastewater treatment.

The present invention discloses a sodium ion battery positive electrode material and a preparation method thereof, wherein the positive electrode material comprises a core, a second coating layer and a first coating layer between the core and the second coating layer, wherein the chemical formula of the core is Na x Ni y Mn z M 1‑y‑z O2; M is a doping element, 0.5 < x ≤ 1, 0 < y ≤ 0.5, 0 < z ≤ 0.5; the material of the first coating layer includes at least one of dopamine and tannic acid; the material of the second coating layer includes at least one of 3-aminopropylmethyldimethoxysilane, 3-aminopropylmethyldiethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, N-2-aminoethyl-3-aminopropylmethyldiethoxysilane, N-2-aminoethyl-3-aminopropyltriethoxysilane, N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane, and 3-diethylenetriaminopropyltrimethoxysilane. The present invention produces a sodium ion battery positive electrode material with low residual alkali and high ion diffusion, which has the advantages of high rate, long cycle performance and storage stability.

The present disclosure provides a laminate. In an embodiment, the laminate includes (1) a first machine direction oriented multilayer film (1MD0), (2) a second film, and (3) an adhesive layer between the 1MD0 and the second film. The 1MDO includes (a) a skin layer with (i) a skin layer (SL) first ethylene / a-olefin copolymer having a density from 0.940 g / cc to 0.980 g / cc and (ii) a skin layer (SL) second ethylene / a-olefin copolymer having a density from 0.900 g / cc to 0.940 g / cc. The 1MDO includes (b) a first intermediate layer (FIL) in direct contact with the skin layer. The first intermediate layer includes an FIL ethylene / a-olefin copolymer having a density from 0.920 g / cc to 0.980 g / cc. The 1MDO includes (c) a core layer (CL) in direct contact with the first intermediate layer (b). The core layer (c) includes (i) a core layer (CL) first ethylene / a-olefin copolymer having a density from 0.920 g / cc to 0.980 g / cc, and (ii) a core layer (CL) second ethylene / a-olefin copolymer having a density from 0.900 g / cc to 0.940 g / cc. The 1MD0 includes (d) a second intermediate layer (SIL) in direct contact with the core layer. The second intermediate layer includes an SIL ethylene / a-olefin copolymer having a density from 0.920 g / cc to 0.980 g / cc. The 1MDO includes (e) an interior layer (IL) in direct contact with the second intermediate layer. The interior layer includes (i) an interior layer (IL) first ethylene / a-olefin copolymer having a density from 0.940 g / cc to 0.980 g / cc, and (ii) an interior layer (IL) second ethylene / a-olefin copolymer having a density from 0.900 g / cc to 0.940 g / cc.

The application discloses a preparation of a thermosetting benzocyclobutene-based MQ silicone resin and application thereof in preparing a glass fiber composite material, and comprises the following steps: stirring and reacting an organic silicon source, a solvent, a catalyst and water at 30-50 DEG C for 30-90 min to form a mixed solution A; uniformly mixing divinylsiloxane-benzocyclobutene and the solvent to form a mixed solution B, adding the mixed solution B into the mixed solution A, and heating to 65-80 DEG C for 1-3 h; adding an organic phase after the reaction is completed, washing with water for several times until neutral, removing the solvent by vacuum distillation, and vacuum drying; and obtaining the thermosetting benzocyclobutene-based MQ silicone resin. The thermosetting benzocyclobutene-based MQ silicone resin has excellent dielectric properties, mechanical properties, heat resistance and chemical stability, and the cured resin formed by thermal crosslinking has the properties of low dielectric, high tensile strength, high bending strength, chemical stability and heat resistance.

The application discloses a high-temperature deblocking crosslinking type silicone modified waterborne polyurethane for dispersion dyeing free washing and a preparation method thereof. The silicone modified waterborne polyurethane is composed of two components A and B. The component A is a blocked type silicone modified waterborne polyurethane, which is prepared by condensation of isophorone diisocyanate, poly-1,4-butanediol adipate, polytetrahydrofuran diol, double-hydroxyl blocked polydimethylsiloxane, 2,2-dimethylol butyric acid and 1,4-butanediol, and blocking with a high-temperature deblocking blocking agent. The component B is diethylenetriamine. The silicone modified waterborne polyurethane is applied to digital jet dyeing of polyester fabric with dispersion dyes, so that reduction cleaning and washing processes can be omitted. The surface color yield and penetration rate of the jet-dyed fabric are excellent, the dry rubbing fastness is improved to grade 4-5, the wet rubbing fastness is improved to grade 4, and the soaping fastness can reach grade 5, so the silicone modified waterborne polyurethane has a wide application prospect.

This invention belongs to the field of organosilicon thermally conductive materials, and provides a liquid silicone rubber system for thermally conductive pads and its preparation method. The system comprises vinyl-terminated dimethyl polysiloxane, MQ / phenyl-enriched pre-crosslinked polysiloxane microgel, vinyltrimethoxysilane-modified hexagonal boron nitride, alumina, trimethylsilane-terminated dimethylsiloxane-methylhydrosiloxane copolymer, 1,3-divinyl-1,1,3,3-tetramethyldisiloxane zero-valent platinum complex, and 1-ethynyl-1-cyclohexanol, forming a two-component packaging. This system is advantageous in balancing thermal conductivity, electrical insulation, flowability, defoaming, softness and fit, and long-term stability, making it suitable for the preparation of thermally conductive pads.

The invention relates to the technical field of composite materials, in particular to a carbon fiber composite material bridge. The hard-soft modified spiral carbon fiber composite material is prepared from the following raw materials in parts by weight: 70 to 75 parts of bisphenol A epoxy resin, 15 to 25 parts of diethylenetriamine curing agent, 12 to 15 parts of hard-soft modified spiral carbon fiber, 6 to 8 parts of uvioresistant mixed powder, 3 to 5 parts of organic pigment dispersing agent and 5 to 7 parts of organic pigment. Spiral polyacrylonitrile fibers are prepared through a rope winding effect, then surface modification, high-temperature calcination and fulvic acid solution vacuum impregnation are conducted on tetrabutyl titanate and ammonium ceric nitrate, rigid-flexible modified spiral carbon fibers are prepared, the rigid-flexible modified spiral carbon fibers are added into a resin matrix to form a stress buffer layer, stress concentration is effectively relieved, meanwhile, a large number of hydrogen bonds and hydroxyl bonds are introduced, and the tensile strength of the composite material is improved. The bonding force between the fiber and a resin matrix is enhanced, meanwhile, strong locking can be formed between the spiral shape of the fiber and the matrix, the bending strength, the tensile strength and the impact strength of the carbon fiber composite material are greatly improved, and the mechanical property of the bridge is improved.

Disclosed is a separator for an electrochemical device, an electrochemical device comprising the same, and a method for manufacturing the same. The separator for the electrochemical device can improve resistance and maintain porosity after lamination by including a polyvinylidene-containing binder containing a low content of hexafluoropropylene and / or a polyolefin-containing binder.

The invention discloses a bifunctional amino electrolyte and a preparation method and application thereof, and belongs to the field of industrial process waste gas treatment. The preparation method comprises the following steps: uniformly mixing an amido aqueous solution, AM < + > (a metal cation compound) and deionized water to obtain a precursor; carrying out ultrasonic treatment on the precursor at 50 DEG C for 1 hour, and then cooling to room temperature; adding CTAB (cetyltrimethylammonium bromide) into the precursor solution, heating in a water bath to 80 DEG C, cooling to room temperature, and adjusting the pH to be neutral to prepare a bifunctional amino electrolyte; the solute of the amido aqueous solution is MEA (monoethanolamine), DEA (diethanolamine), MDEA (methyldiethanolamine), 3-AP (3-AP), 1-AP, EDA (ethylene diamine), 13DAP (3-aminopropyl amine), MAPA (2-aminopropyl amine) and DETA (diethanolamine, diethanolamine, N-methyldiethanolamine, 3-aminopropylamine, 1-aminopropylamine, ethanediamine, 1, 3-propane diamine, N-methylaminopropylamine and diethylenetriamine). Compared with the traditional amino electrolyte, the method has the advantages that the adsorption of carbamate on the surface of an electrode can be obviously weakened, and the Faraday efficiency of a reduction product can be improved.