498 results about "Phthalic anhydride" patented technology

The invention relates to the field of lithium ion batteries, in particular to a fluorine-containing soluble polyimide adhesive special for a lithium battery and a preparation method and application of the fluorine-containing soluble polyimide adhesive. The fluorine-containing polyimide is prepared by reacting dianhydride and diamine, the dianhydride comprises 4, 4 '-hexafluoroisopropyl phthalic anhydride (6FDA), the diamine comprises 4, 4'-diaminodiphenylamine (NDA), and the structural formula of the fluorine-containing polyimide (6FDA-NDA) is # imgabs0 #. The electrode material prepared from the adhesive material obtained by the invention has the characteristics of low impedance and high adhesion, the assembled lithium battery shows higher magnification, and the adhesive material shows excellent magnification performance and adhesion performance when being applied to the lithium ion battery, especially a silicon-containing negative electrode lithium ion battery, and has a good industrial prospect.

The invention relates to the technical field of dispersing agents for ceramics, and discloses a preparation method of a dispersing agent for ceramics, and the novel dispersing agent for ceramics is prepared by taking methoxypolyethylene glycol, bromoacetyl bromide, 4-hydroxyphthalic anhydride, 2, 4, 6-diethanolamine amino-1, 3, 5-s-triazine and the like as raw materials. The polyether polyol contains a plurality of carboxyl groups, has strong interaction with the surface of ceramic powder such as aluminum oxide, has a star-shaped multi-arm polyether molecular chain, can well coat the aluminum oxide powder, can effectively inhibit the growth of crystal nucleus particle size of the aluminum oxide powder, reduces the particle size of the aluminum oxide, and avoids agglomeration and sedimentation of the aluminum oxide; the modified aluminum oxide ceramic powder has good activation degree in solvents such as water, ethanol, dichloromethane or N, N-dimethylformamide and the like, is lower in settling volume and shows excellent dispersing performance.

The invention discloses a naphthalene method phthalic anhydride pre-condenser device, and relates to the technical field of condensers, the naphthalene method phthalic anhydride pre-condenser device comprises a supporting base, through use of a protection assembly, a phthalic anhydride sensor can drive an electric telescopic rod to contract after detecting phthalic anhydride, the electric telescopic rod drives a connecting gear to move, a motor drives a thin shaft to rotate, and a baffle blocks an air outlet pipe; and meanwhile, the driven shaft drives the transmission blades to rotate, so that a decomposing agent is sprayed into the shell through the nozzles at the bottom of the liquid spraying ring, and the decomposing agent decomposes the phthalic anhydride gas for harmless treatment, so that the phthalic anhydride gas can be recycled. And the phthalic anhydride gas inlet and outlet is closed, and the phthalic anhydride gas in the shell is decomposed and harmlessly treated, so that maintenance personnel can detect the leakage condition of the device safely, and the harm to personal safety due to the leakage and diffusion of the phthalic anhydride gas is avoided.

The invention discloses a flame retardant with a double-layer microcapsule structure, a flame-retardant polyurethane material as well as a preparation method and application of the flame-retardant polyurethane material, and belongs to the technical field of flame retardants. The material is a multifunctional flame retardant with a double-layer core-shell structure, a shell layer is calixarene boric acid resin, a middle shell layer is melamine phthalic anhydride resin, and a core layer is hydroxyapatite modified aluminum hypophosphite. Due to the high cross-linking degree between polymers, the flame retardance of polyurethane is improved, meanwhile, the mechanical property of the polyurethane is improved, and the flame retardance and seawater corrosion resistance of the material are synergistically enhanced through hydroxyapatite dispersed in the core layer. The double-shell layer has excellent hydrophobicity, prevents internal aluminum hypophosphite from being affected with damp and has anti-fouling and self-cleaning effects, and the prepared flame-retardant polyurethane composite material has excellent tensile and flexible characteristics due to a double network of hydrogen bonds and covalent bonds.

The invention discloses high-temperature-resistant and corrosion-resistant unsaturated polyester resin for a grid and a preparation method thereof, and belongs to the technical field of unsaturated polyester resin. The raw materials comprise the following components in parts by weight: 330 to 400 parts of isophthalic acid, 55 to 80 parts of 1, 4-cyclohexanedimethanol, 150 to 200 parts of ethylene glycol, 125 to 220 parts of first reaction stage propylene glycol, 0.2 to 0.6 part of a catalyst, 0.1 to 0.3 part of a first reaction stage antioxidant, 90 to 120 parts of second reaction stage propylene glycol, 30 to 50 parts of phthalic anhydride, 300 to 380 parts of maleic anhydride, 0.1 to 0.3 part of a second reaction stage antioxidant, 0.1 to 0.5 part of a polymerization inhibitor and 600 to 630 parts of a cross-linking agent. The high-temperature-resistant and corrosion-resistant unsaturated polyester resin for the grating has the characteristics of high corrosion resistance, high temperature resistance and high mechanical property, is low in cost and is suitable for being used as a raw material for manufacturing the grating.

The invention relates to high-flexibility phenolic-aldehyde-free rosin modified resin, and belongs to the technical field of rosin resin. The raw materials comprise rosin, maleic anhydride, phthalic anhydride, pentaerythritol, glycerol, an acrylate monomer and magnesium oxide. The preparation process comprises four key reactions: (1) rosin and maleic anhydride are subjected to a Diels-Alder reaction to construct a rigid skeleton; (2) introducing phthalic anhydride to form a compact cross-linked network; (3) carrying out composite esterification on pentaerythritol and glycerol; and (4) the interface binding energy is improved by regulating and controlling the in-situ RAFT polymerization of the acrylate monomer. The resin does not contain phenolic aldehyde components, VOCs emission is smaller than 50 g / L, free formaldehyde is not detected, and the resin has high flexibility, heat resistance and excellent chemical resistance.

The invention discloses a thermal interface material based on elastomer glass and a preparation method thereof. The thermal interface material is prepared from the following raw materials: a diglycidyl ether-terminated liquid polythioether prepolymer, methyl tetrahydrophthalic anhydride, ethylene glycol diglycidyl ether, a catalyst and a heat-conducting filler. According to the invention, the highly vertical orientation of the heat-conducting filler is realized through a process of combining hot pressing and stack welding, and the heat-conducting filler has an extremely high heat conductivity coefficient in the vertical direction. The Rc of the thermal interface material is much lower than that of a commercial thermal interface material adopting a traditional silicon matrix, and the thermal interface material has a spontaneous contact behavior on the surface of the substrate.

The invention discloses a high-temperature-resistant adhesive tape and a preparation method thereof, and belongs to the technical field of adhesive tape preparation. The adhesive tape is composed of a composite adhesive and a composite polyester film, and the composite adhesive is composed of hydroxyl polydimethylsiloxane, boric acid, 2, 2-bis [4-(4-aminophenoxy) phenyl] propane and 4, 4-bis (4-aminophenoxy) phenyl] propane. The composite polyester film is prepared from polyethylene glycol terephthalate, 1-allylimidazole, 2-bromobutane, potassium hexafluorophosphate, methacryloyloxyethyl trimethyl ammonium chloride and nano silicon dioxide, and the composite polyester film is prepared from polyethylene glycol terephthalate, 1-allylimidazole, 2-bromobutane, potassium hexafluorophosphate, methacryloyloxyethyl trimethyl ammonium chloride and nano silicon dioxide. The adhesive tape prepared by the method has excellent viscosity, high temperature resistance, aging resistance and antistatic property.

The invention relates to the technical field of condensers, in particular to a naphthalene method phthalic anhydride pre-condenser device which comprises a bottom frame and a condensing box fixedly connected to the bottom frame, a condensing unit is arranged on the bottom frame, and the two ends of the top of the condensing box are fixedly connected with an air inlet pipe and an exhaust pipe in a penetrating mode respectively. An upper cylinder and a lower cylinder are rotationally connected to the upper side and the lower side in the condensing box respectively, a liquid discharging pipe used for discharging phthalic anhydride liquid is fixedly connected to the inner side of the condensing box, a plurality of rotating cylinders are rotationally connected to the top end of the lower cylinder at equal intervals and communicate with the interior of the lower cylinder, and bottom plates are fixedly connected to the bottom ends of the inner sides of the rotating cylinders. Through the arrangement of the structure, the multiple condensation cylinders can be driven to rotate, then the positions of the condensation cylinders beside the naphthalene-process phthalic anhydride gas inlet pipe are changed, naphthalene-process phthalic anhydride gas can be conveniently and evenly condensed through cold air passing through the condensation cylinders, the condensation effect of the device is improved, and the condensation effect of the device is improved; and the cold air utilization effect of the device is good.

The invention relates to the technical field of radiation refrigeration materials, in particular to a polyimide fiber membrane for radiation refrigeration and a preparation method and application thereof. The polyimide fiber membrane for radiation refrigeration comprises polyimide-containing resin and inorganic particles, the polyimide-containing resin is prepared from diamine and dianhydride, the diamine is selected from a combination of diamine A and other diamines, and the diamine A comprises at least one of 4-aminobenzene-2, 5-pyridine diamine and 4, 4 '-diaminodiphenylamine; the dianhydride at least comprises dianhydride B, and the dianhydride B is selected from at least one of 1, 2, 4, 5-hydrogenated pyromellitic dianhydride, 3, 3 ', 4, 4'-dicyclohexyltetracarboxylic dianhydride and 4, 4 '-(hexafluoroisopropylidene) diphthalic anhydride. The invention has the advantages of high whiteness, high temperature resistance, ultraviolet resistance, high relative refractive index and higher infrared absorptivity.

The invention relates to the technical field of polyurethane compositions, in particular to a chlorotrifluoropropene-based high-temperature-resistant polyurethane composition and a preparation process thereof, and the chlorotrifluoropropene-based high-temperature-resistant polyurethane composition comprises the following raw materials: hydroxylated chlorotrifluoropropene, modified hexamethylene diisocyanate tripolymer, phthalic anhydride polyester polyol, nano silicon carbide whiskers and polyimide microspheres. A fluorine element is introduced into hydroxylated chlorotrifluoropropene, so that the thermal decomposition temperature of the material is remarkably increased, and thermal movement and oxidative degradation of a molecular chain at high temperature are inhibited; meanwhile, a rigid benzene ring structure of bisphenol A dihydroxyethyl ether improves the regularity of a molecular chain and reduces high-temperature softening deformation. The modified hexamethylene diisocyanate tripolymer forms a stable siloxane cross-linked network, so that the thermal stability of the material is further enhanced; in addition, an isocyanate group reacts with hydroxyl to generate a high-density carbamate crosslinking point, so that the regularity of a hard segment is enhanced, and the thermal stability of the material is improved.

The invention belongs to the field of alkyd resin, and particularly relates to alkyd resin with high adhesive force and a preparation method thereof. The high-adhesion alkyd resin is prepared from soya oil acid, a nitrogen-containing heterocyclic compound, phthalic anhydride, pentaerythritol and hydroxyl-terminated polydimethylsiloxane. By introducing a nitrogen-containing heterocyclic compound (such as quinoline and triazole) and hydroxyl-terminated polydimethylsiloxane (PDMS), the molecular structure of the alkyd resin is remarkably optimized, so that the alkyd resin is superior to the traditional alkyd resin in the aspects of heat resistance, corrosion resistance, mechanical strength, adhesive force, construction performance and the like. The coating is suitable for the fields of high-temperature anticorrosive coatings, marine coatings, industrial protective coatings and the like, and shows remarkable technical advantages and wide market prospects.

The invention discloses lighting resin as well as a preparation method and application thereof, and belongs to the technical field of lighting type unsaturated polyester resin. Comprising the following components: ethylene glycol, benzoic acid, phthalic anhydride, maleic anhydride, an antioxidant, a defoaming agent, a surfactant, a stabilizer, styrene, a solvent, a first polymerization inhibitor, a second polymerization inhibitor and a third polymerization inhibitor. The alcohol-acid ratio is (1.03-1.13): 1; the molar ratio of unsaturated acid to saturated acid is (2.5-3.5): 1; the mass ratio of benzoic acid to the surfactant is (26.8-44): 1; the preparation method comprises the following steps: 1) reacting ethylene glycol, maleic anhydride, phthalic anhydride, benzoic acid, an antioxidant and a first polymerization inhibitor; the preparation method comprises the following steps of (1) adding a first polymerization inhibitor, (2) heating and preserving heat after the reaction is completed, and (3) cooling, adding a second polymerization inhibitor, cooling, adding a third polymerization inhibitor, a cross-linking agent, a surfactant and a defoaming agent, and adding a solvent to obtain the daylighting resin.According to the preparation method, the surfactant and benzoic acid have a synergistic effect, so that the compatibility of polyester and the cross-linking agent is improved.

The invention relates to rosin modified resin and a preparation process thereof and low-odor printing ink, the rosin modified resin is prepared from maleic anhydride, sulfonate alkyd resin, rosin and a metal organic framework, and the sulfonate alkyd resin is prepared from neopentyl glycol, dibutyltin dilaurate, m-phthalic acid-5-sodium sulfonate, phthalic anhydride and pentaerythritol. The printing ink has the effect of improving the strength and smell of the printing ink.

The present invention relates to the field of solar-driven interfacial photothermal evaporation technology, and more particularly to a solar-driven interfacial evaporator based on TiN / polyimide aerogel, its preparation method, and application. The TiN / polyimide aerogel comprises a polyimide aerogel matrix with vertical channels connecting upper and lower surfaces, loaded with TiN nanoparticles. The aerogel is prepared by polycondensation, dehydration, and cyclization of the polyimide aerogel 4,4'-diaminodiphenyl ether and 4,4'-oxydiphthalic anhydride. The TiN / polyimide aerogel provided by the present invention, when used as a solar-driven interfacial evaporator, can not only improve the water transfer performance of a three-dimensional photothermal evaporator, but also increase the photothermal evaporation rate during seawater desalination.

The invention discloses a modified polypropylene HPPM square electric power corrugated pipe, belongs to the technical field of corrugated pipes, and aims to solve the problem that the polypropylene square electric power corrugated pipe cannot have toughness and excellent mechanical performance when being prepared in the prior art. The adopted nucleating agent has the technical problems of low nucleating efficiency and complex preparation process; the composite material comprises block co-polypropylene, a modified nucleating agent, alkaline glass fibers and related auxiliaries, maleimide, propylene and allyl cinnamate serve as monomers, the block co-polypropylene with high mechanical performance and high toughness is prepared, ethylene diamine and hexachlorocyclotriphosphazene are subjected to nucleophilic substitution, and the composite material is obtained. The preparation method comprises the following steps: preparing polydiamino-containing polyamine phosphazene by using a one-step method, reacting the polyamine phosphazene with phthalic anhydride to obtain a modified nucleating agent with a large number of amide carboxylic acid nucleation centers, and has the advantages of high nucleation efficiency and simplified preparation process.

The invention relates to the technical field of insulating materials, and discloses a high-temperature-resistant polyvinyl chloride insulating material and application thereof in a cable, parachloroaniline, formaldehyde, bisphenol S, diethanol amine, phthalic anhydride and the like are used as raw materials, a Mannich reaction, a substitution reaction and a ring-opening polymerization reaction are performed to obtain phthalic anhydride polyester polyol, and the phthalic anhydride polyester polyol, 4, 4 '-diphenyl-1, 3-pentanediol, 4, 4'-diphenyl-1, 3-pentanediol and 4, 4 '-diphenyl-1, 3-pentanediol are used as raw materials to prepare the high-temperature-resistant polyvinyl chloride insulating material. The high-temperature-resistant polyvinyl chloride insulation material is prepared by taking 1, 4-diphenylmethane diisocyanate and 1, 4-butanediol as raw materials to obtain modified thermoplastic polyurethane, initiating crosslinking of the modified thermoplastic polyurethane, polyvinyl chloride resin and the like, and uniformly mixing the modified thermoplastic polyurethane, the polyvinyl chloride resin and the like to obtain the high-temperature-resistant polyvinyl chloride insulation material, and the prepared polyvinyl chloride insulation material has relatively good high-temperature resistance and wear resistance.

The invention discloses a single-component moisture-curing reaction type polyurethane hot melt adhesive for aluminum honeycombs and a preparation method thereof, the hot melt adhesive is prepared from the following raw materials in parts by weight: 15-30 parts of isocyanate, 10-25 parts of poly (1, 6-hexanediol adipate), 5-15 parts of poly (1, 6-hexanediol dodecanoate), 5-15 parts of poly (1, 6-hexanediol isophthalate), 5-15 parts of poly (1, 6-hexanediol isophthalate), 5-15 parts of poly (1, 6-hexanediol adipate), 5-15 parts of poly (1, 6-hexanediol adipate), 5-15 parts of poly (1, 6 The invention relates to a high-temperature-resistant adhesive which is prepared from the following components in parts by weight: 2 to 10 parts of 1, 6-hexanediol-neopentyl glycol ester glycol, 5 to 15 parts of polycarbonate polyether glycol, 10 to 20 parts of polytetramethylene ether glycol, 5 to 15 parts of ethylene-vinyl acetate, 15 to 25 parts of polydodecanedioic acid-hydrogenated phthalic anhydride-methylpropanediol ester glycol, 0.01 to 0.1 part of stabilizer, 0.05 to 0.5 part of antioxidant, 0.05 to 0.5 part of catalyst and 0.1 to 5 parts of adhesion promoter. The hot melt adhesive disclosed by the invention has the characteristics of high bonding strength and excellent weather resistance, and can meet the use requirements of the current furniture market.

The invention discloses a two-component epoxy pouring sealant as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The bi-component epoxy pouring sealant comprises a component A and a component B. The component A comprises the following raw materials: 60-100 parts of modified epoxy resin; 5-25 parts of a reactive diluent; 1 to 10 parts of nano silicon dioxide; the component B comprises the following raw materials in parts by mass: 50-60 parts of an alicyclic amine curing agent; 20-30 parts of a polyether amine curing agent; 10 to 15 parts of methyl tetrahydrophthalic anhydride; 3-5 parts of a silane modifier; 0.1 to 0.5 part of a defoaming agent; the modified epoxy resin is prepared by carrying out esterification reaction on bisphenol A type epoxy resin and long-chain fatty acid for modification and then carrying out graft modification with polypropylene glycol diglycidyl ether. In addition, the invention also provides a preparation method of the two-component epoxy pouring sealant. The epoxy pouring sealant provided by the invention has excellent bonding performance on non-polar plastics such as PP / PE and the like.

The invention relates to the technical field of alkyd resin, in particular to organosilicone modified waterborne alkyd resin and a preparation method thereof.The method comprises the following steps that cottonseed oil, an alcoholysis catalyst and trimethylolpropane are subjected to an alcoholysis reaction under protection of inert gas, and an alcoholysis product is obtained; 2, carrying out esterification polymerization reaction on the alcoholysis product, a water-carrying agent, phthalic anhydride and trimellitic anhydride to obtain basic alkyd resin; the organic silicon modified alkyd resin is obtained from the basic alkyd resin and organic silicon under the action of the modified catalyst; sequentially adding a cosolvent, a neutralizer and water into the organic silicon modified alkyd resin, and stirring and mixing to obtain the organic silicon modified waterborne alkyd resin. According to the invention, through a modification technology, the hydrophobicity of a coating is enhanced while the water dispersibility of the organosilicon modified alkyd resin is ensured, so that the organosilicon modified resin has self-cleaning capability and permeation corrosion resistance, a steel structure material can be effectively protected, and the service life of the steel structure material is prolonged.

The invention discloses unsaturated polyester resin for repairing an ultraviolet curing pipeline, and belongs to the technical field of preparation of unsaturated polyester resin. The unsaturated polyester resin for repairing the ultraviolet curing pipeline is prepared from the following components in parts by weight: 20 to 30 parts of maleic anhydride, 15 to 25 parts of phthalic anhydride, 19.8 to 34.1 parts of ethylene glycol, 24.3 to 41.8 parts of propylene glycol, 4 to 10 parts of a composite ultraviolet curing agent, 1 to 3 parts of a modified temperature-sensitive agent, 2 to 5 parts of carbon nanotubes, 0.1 to 0.5 part of hydroquinone and 0.5 to 1.2 parts of an antioxidant 1010. The unsaturated polyester resin prepared by the method has excellent temperature-responsive phase change, mechanical property, catalytic photocuring property and chemical corrosion resistance.

The invention discloses a preparation method of a self-repairing coating based on a dynamic ester bond, and belongs to the field of self-repairing coating materials, the dynamic ester bond is introduced into epoxy resin, self-repairing is realized through reversible reaction of the dynamic bond, waterborne epoxy resin and a curing agent methylhexahydrophthalic anhydride react, and the self-repairing coating is prepared. Epoxy resin containing dynamic reversible ester bonds can be prepared under the catalytic condition of polyethylene glycol. The prepared dynamic ester bond epoxy resin coating is simple in synthesis process and rapid in reaction; the required raw materials are easy to obtain, the curing time is very short, the self-repairing condition is easy to achieve, and only heating is needed. According to the self-repairing coating material, a common epoxy resin coating has self-repairing performance, the service life of the common coating is prolonged, and resource waste caused by waste, aging and damage of the epoxy resin material is reduced.

The invention discloses high-strength corrosion-resistant unsaturated polyester resin and a preparation method thereof, and belongs to the technical field of unsaturated polyester resin. The high-strength corrosion-resistant unsaturated polyester resin is prepared from the following components in percentage by mass: 4 to 5 percent of isophthalic acid, 6.5 to 8 percent of terephthalic acid, 7.5 to 8.4 percent of phthalic anhydride, 18 to 18.5 percent of maleic anhydride, 19 to 20 percent of diethylene glycol, 0.007 to 0.015 percent of a catalyst, 0.02 to 0.03 percent of an antioxidant, 9.5 to 10.5 percent of propylene glycol, 0.018 to 0.025 percent of a polymerization inhibitor, 0.015 to 0.03 percent of paraffin and 31.7 to 32.94 percent of a cross-linking agent. The mass ratio of the terephthalic acid to the isophthalic acid is (1.3-2.0): 1, and the mass ratio of the phthalic anhydride to the isophthalic acid is (1.6-2.05): 1. By optimizing the proportion of the binary acid and adding a proper amount of phthalic anhydride, the crystallinity problem of the terephthalic unsaturated resin can be improved, and the compatibility of the resin to a cross-linking agent is improved; the prepared high-strength corrosion-resistant unsaturated polyester resin has the advantages of high strength, high thermal deformation temperature, high water resistance and high corrosion resistance.

The invention discloses waterborne epoxy resin, a coating and a preparation method and application thereof, and relates to the technical field of high polymer materials. The water-borne epoxy resin has a specific structure, the structure contains units of glycidol, bisphenol A and fluorophthalic anhydride, the water-borne epoxy resin does not contain chloride ions and can be used for preparing low-chlorine, low-sulfur and low-lead water-borne epoxy coatings, the corrosion resistance of coatings formed by the water-borne epoxy coatings is improved, the service life of the coatings formed by the water-borne epoxy coatings is prolonged, and the service life of the coatings is prolonged. The obtained coating is improved in acid and alkali resistance, water resistance and salt spray resistance, has good adhesive force, is suitable for preparing the coating for stainless steel, and can effectively prevent free chloride ions from damaging a stainless steel passive film protective layer.

The invention relates to the field of materials, and provides an adhesive as well as a preparation method and application thereof, and the adhesive comprises the following components in parts by weight: 100-150 parts of maleimide resin; 60 to 100 parts of epoxidized polybutadiene; 10 to 30 parts of fluorine-containing anhydride; 15 to 30 parts of a cross-linking agent; 0.5 to 1 part of an initiator; 300 to 460 parts of a filler; and 375-580 parts of a solvent. The fluorine-containing anhydride is one or a mixture of more than two of hexafluoroglutaric anhydride, tetrafluorophthalic anhydride and hexafluoroisopropyl phthalic anhydride. The adhesive has the advantages that a laminated board prepared from the adhesive has uniform appearance and a series of excellent comprehensive properties such as excellent dielectric property, mechanical property, heat resistance and processability, can meet the strict requirements of the laminated board as a semiconductor packaging substrate material in the aspects of application and processing, and is applied to the field of high-frequency high-speed communication.

The invention relates to a high-heat-resistance and high-insulation two-component epoxy resin adhesive and application thereof, and belongs to the technical field of epoxy resin. The technical problem to be solved by the invention is to provide the high-heat-resistance and high-insulation two-component epoxy resin adhesive. The adhesive comprises a component A and a component B. The component A comprises bisphenol A epoxy resin, novolac epoxy resin, silicon carbide whiskers, potassium titanate fibers, boron phenolic resin and modified nano boron nitride. The component B is prepared from methylhexahydrophthalic anhydride, methyl tetrahydrophthalic anhydride, 2-phenylimidazole, modified aluminum oxide, polyimide micro powder and modified wollastonite. Through synergism of multiple materials, balance of heat conduction, insulation, mechanical strength and thermal stability of the adhesive is realized. Under high-frequency pulse voltage, the adhesive is long in electrical aging life. A gradient curing process is adopted for curing, complete reaction in each stage is guaranteed, and internal stress is reduced. The process fault tolerance is high, the environment compatibility is high, the cost is low, and the curing time is short.

The invention relates to the technical field of sound insulation materials, in particular to flame-retardant epoxy resin composite diatomite sound insulation cotton and a preparation method thereof. The flame-retardant epoxy resin composite diatomite sound insulation cotton is prepared from epoxy resin, diatomite, a composite flame retardant, a coupling agent, a curing agent, a diluent, a foaming agent and a charring agent. The composite flame retardant at least comprises ammonium polyphosphate and melamine; the coupling agent is a silane coupling agent or a titanate coupling agent; the curing agent is methyl tetrahydrophthalic anhydride; the diluent is n-butyl glycidyl ether; the foaming agent is azodicarbonamide; the charring agent is pentaerythritol. By optimizing the diatomite modification process and combining physical dispersion and chemical modification means, the compatibility of the diatomite and the epoxy resin is greatly improved, the pain point of filler agglomeration in the traditional process is thoroughly solved, the porous sound insulation potential of the diatomite is fully released, and the sound absorption and sound insulation performance of the material is qualitatively improved.

The invention relates to low-viscosity high-strength two-component epoxy winding resin and a preparation method and application thereof, the resin comprises a component A and a component B, and the mass ratio of the component A to the component B is 100: (80-110); the component A consists of the following raw materials in percentage by mass: 70-85% of modified epoxy resin, 14-20% of a functional reactive diluent and 1-10% of an impregnating compound; the modified epoxy resin is formed by compounding bisphenol A epoxy resin and polyether modified epoxy resin, and the functional active diluent is formed by compounding 1, 6-hexanediol diglycidyl ether and phenyl glycidyl ether; the component B is prepared from the following raw materials in percentage by mass: 85-96% of a composite anhydride curing agent, 2.5-10% of a high-efficiency accelerant and 1.5-5% of a defoaming agent; the composite anhydride curing agent is compounded by methyl tetrahydrophthalic anhydride and succinic anhydride, the efficient accelerant is compounded by imidazole and phosphine, and the defoaming agent is an organic silicon defoaming agent.

The invention provides an antibacterial compatilizer as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The antibacterial compatilizer I is prepared from a polyolefin elastomer, an antibacterial agent, a first grafting monomer and an initiator through a cross-linking reaction; the antibacterial agent and the first grafting monomer are respectively grafted on a long chain of the polyolefin elastomer; the antibacterial agent is prepared by carrying out esterification reaction on a second grafting monomer and hydroxyl on the surface of the nano metal oxide coated polyphosphazene microsphere; the first grafting monomer is maleic anhydride or cis-1, 2, 3, 6-tetrahydrophthalic anhydride, and the second grafting monomer is maleic anhydride or cis-1, 2, 3, 6-tetrahydrophthalic anhydride. According to the invention, the nano metal oxide coated polyphosphazene microspheres are grafted with the grafting monomer, and then the grafted nano metal oxide coated polyphosphazene microspheres, the POE and the grafting monomer are subjected to a cross-linking reaction, so that the compatilizer and the antibacterial agent form an integral structure, the problem of poor compatibility of the antibacterial agent and a nylon material is solved, and the problem of short antibacterial time of the nylon material is solved; therefore, the nylon material has antibacterial performance in the whole service period.

The invention relates to the technical field of mineral cables, and provides a mineral fireproof power cable which sequentially comprises a cable core, a mineral insulating layer, a copper sheath and an outer sheath layer from inside to outside, and the outer sheath layer is prepared from the following raw materials in parts by weight: 95-105 parts of polyethylene, 4-6 parts of a plasticizer, 30-35 parts of composite titanium dioxide, 1-2 parts of an antioxidant and 5-8 parts of a flame retardant; the composite titanium dioxide is titanium dioxide treated by butanedioic anhydride and phthalic anhydride. According to the technical scheme, the problem of poor tensile strength of the polyethylene outer sheath layer of the mineral fireproof power cable in the prior art is solved.