1515 results about "Nitrile rubber" patented technology

The invention discloses a solvent-resistant foaming material and a preparation method thereof, and relates to the technical field of high-molecular compound rubber foaming materials. The solvent-resistant foaming material is prepared from the following raw materials in parts by mass: 90 parts of a basic polymer, 5-25 parts of a chemical foaming agent, 0.5-5 parts of a cross-linking agent, 0.5-8 parts of a foaming aid, 5-40 parts of filler, 10-30 parts of a solvent-resistant modifier, 0.5-5 parts of a processing aid and 0.5-1.5 parts of an anti-aging agent. Through the synergistic effect of the base polymer (the nitrile rubber and the butadiene rubber are mixed according to the ratio of 1: 1) and the solvent-resistant modifier (such as polytetrafluoroethylene powder), the problem that a traditional foaming material is easy to swell and deform in an organic solvent environment is solved. On the trend, the volume swelling rate and the mass change of the material in a solvent are effectively reduced, the infiltration resistance is enhanced, the structural integrity of the material is kept when the material is in contact with lubricating oil or an alcohol solvent for a long time, and therefore the service life of a sealing piece is prolonged.

The invention relates to the technical field of friction materials, and particularly discloses an electromagnetic brake friction material prepared from granules and a preparation process of the electromagnetic brake friction material in order to solve the problem that an existing electromagnetic brake friction plate is difficult to prepare or insufficient in performance. The reinforcing material comprises plasma modified aramid pulp, coupling modified composite mineral fibers, SiO2 coated tetrapod-like zinc oxide whiskers and carbon fiber-aluminum silicon whiskers; the filler comprises modified needle-like wollastonite and organic modified precipitated barium sulfate; the adhesive comprises boron-silicon synergistic modified phenolic resin and modified carboxy nitrile rubber. The raw materials are improved, and granules are prepared by adopting a mixing and crushing process, so that the content of an adhesive can be greatly reduced, meanwhile, the die filling efficiency can be improved, the die thickness and the high-temperature heat fading of the friction material can be reduced, a cold press molding process can be omitted, and the qualification rate of finished friction materials can be improved.

The invention provides a low-smoke halogen-free flame-retardant cable material and a preparation method thereof, and belongs to the field of cable materials. The low-smoke halogen-free flame-retardant cable material is prepared from the following chemical components: 32 to 40 parts of nitrile rubber, 22 to 27 parts of natural rubber, 8 to 12 parts of benzoxazole-siloxane copolymer containing phosphate dynamic bonds, 13 to 15 parts of core-shell-sheath three-stage structure flame retardant, 4 to 6 parts of hexaphenoxy cyclotriphosphazene modified carbon nanotubes, 2 to 3 parts of europium-doped mesoporous cerium dioxide and 3 to 4 parts of nano zinc oxide. The composite material is prepared from the following components in parts by weight: 3 to 4 parts of carbon nanotube grafted montmorillonite hybrid, 2 to 3 parts of lubricant, 0.8 to 1.2 parts of cross-linking agent, 0.3 to 0.4 part of accelerant, 0.4 to 0.6 part of dicumyl peroxide and 0.1 to 0.2 part of antioxidant. Unification of high flame retardance, low smoke, excellent mechanical property and processability of the cable material is realized.

The invention discloses a shielding protection adhesive tape for semiconductor integrated circuit packaging and a preparation method thereof, and relates to the technical field of semiconductor integrated circuit packaging. The shielding protective adhesive tape for packaging the semiconductor integrated circuit is prepared by taking polyimide as a base material and coating a coating, and the coating comprises the following raw materials in parts by weight: 3-5 parts of modified nano silicon dioxide, 30-40 parts of N, N-dimethylformamide, 1-3 parts of a curing agent and 1-3 parts of a curing agent. The invention discloses a high-temperature-resistant epoxy resin coating which is prepared from the following components in parts by weight: 25-30 parts of N, N-dimethylformamide, 25-30 parts of a modified acrylate copolymer, 17-26 parts of ethyl acetate, 12-15 parts of epoxy resin, 1-2 parts of a silane coupling agent KH-550, 0.5-1 part of an antioxidant 1010, 0.3-0.8 part of an ultraviolet absorbent UV-327, 1-2 parts of carboxyl-terminated nitrile rubber, 2-4 parts of decabromodiphenyl ether, 0.1-0.3 part of an organic siloxane defoaming agent, 0.2-0.5 part of an acrylate flatting agent and 10-11 parts of diaminodiphenyl sulfone. The adhesive tape contains the modified nano silicon dioxide, the modified acrylate copolymer and other components, so that the performance of the adhesive tape is guaranteed; pretreatment is meticulous, preparation steps are standard, and mass production is easy; a finished product can be effectively shielded, and the packaging yield and the product stability can be improved.

The invention relates to the technical field of rubber materials, in particular to a rubber composite material with self-lubricating and wear-resistant characteristics and a preparation method thereof. The rubber composite material with self-lubricating and wear-resistant characteristics is prepared from the following raw materials in parts by mass: 70 to 75 parts of nitrile rubber, 15 to 18 parts of carbon black, 30 to 35 parts of self-lubricating filler, 2 to 3 parts of plasticizer, 2 to 3 parts of zinc oxide, 2 to 3 parts of zinc stearate, 3 to 5 parts of coupling agent, 4 to 6 parts of self-lubricating additive, 1 to 1.5 parts of anti-aging agent, 1 to 1.5 parts of accelerant and 2 to 4 parts of vulcanizing agent. The prepared rubber composite material with self-lubricating and wear-resistant characteristics has excellent lubricating property, wear-resistant property and mechanical property. The method is suitable for the fields of automobile manufacturing, mechanical manufacturing, aerospace and the like.

The invention discloses a high-strength corrosion-resistant aramid composite material and a preparation process thereof, and relates to the technical field of aramid composite materials, the high-strength corrosion-resistant aramid composite material comprises the following components by mass: 60-80 parts of ethylene propylene diene monomer, 20-40 parts of hydrogenated nitrile rubber, 10-15 parts of polytetrafluoroethylene, 18-30 parts of a filler, 10-15 parts of aramid fiber, 5-8 parts of a plasticizer, and 3-6 parts of a vulcanizing agent. The EPDM rubber, the hydrogenated nitrile rubber and the polytetrafluoroethylene are compounded, and the aramid fibers and the filler are added, so that the composite material with good mechanical property and corrosion resistance is obtained; by modifying the ethylene propylene diene monomer and the aramid fiber, the compatibility among the materials is improved, and the comprehensive performance of the composite material is further improved.

The invention discloses a forming device and a forming method of a high-temperature-resistant low-temperature-resistant high-toughness cable. According to the invention, based on a double-substrate synergistic system of hydrogenated nitrile rubber and polyether type thermoplastic polyurethane, and in combination with a dynamic vulcanization crosslinking technology, the cable keeps excellent flexibility and tear resistance in a wide temperature range of-60 DEG C to 125 DEG C. A three-dimensional reinforced network of nano silicon dioxide and carbon nanotubes is directionally dispersed in a matrix, and mechanical support of aramid short fibers is matched, so that the cable is endowed with bending fatigue resistance, the durability of the drag chain cable in a high-frequency torsion scene of an oil platform exceeds 30 million cycles is realized, and the service life of the drag chain cable is prolonged. The problem of breakage caused by low-temperature embrittlement and high-temperature softening of a traditional cable is fundamentally solved, the synergistic effect of the perfluoropolyether surface modifier and the composite anti-aging system enables the cable to form a stable protective layer in strong acid, strong alkali, salt mist and oil stain environments, and chemical corrosion and ultraviolet irradiation are effectively resisted.

The invention relates to the field of cables, and discloses a modified polyvinyl chloride composite material for cables and a preparation method thereof.The composite material comprises low-density polyethylene, polyvinyl chloride, ethylene-vinyl acetate copolymer, nitrile rubber, modified graphene oxide, modified nano calcium carbonate and auxiliaries; the modified graphene oxide is prepared by reacting acylating chlorination of graphene oxide with an anti-aging derivative, the anti-aging derivative is prepared by reducing a benzoxazole-containing intermediate generated by a reaction of 2-amino-4-bromophenol and 4-cyanobenzaldehyde to obtain an aminated benzoxazole-containing intermediate, then the aminated benzoxazole-containing intermediate reacts with p-phenylenediamine, and then the product reacts with 3-(3, 4-dichlorophenyl)-1, 2, 3-triazole-3-one to obtain the anti-aging graphene oxide. 2, 5-di-tert-butyl-4-hydroxyphenyl) propionyl chloride is subjected to a reaction to prepare the product. And the modified nano calcium carbonate is prepared by reacting phosphonitrilic chloride trimer with an amino silane coupling agent and 2-amino benzoxazole-5-borate and then grafting on the surface of the nano calcium carbonate. The composite material prepared by the invention has excellent flame retardance, heat resistance and long-acting oxidation resistance.

The invention discloses a rubber compound for aviation sealing elements and a preparation method thereof, and relates to the technical field of rubber compounds. The rubber compound for the aviation sealing element comprises the following raw material components in parts by weight: 30-50 parts of methyl vinyl phenyl silicone rubber; 50 to 70 parts of perfluoroether rubber; 20-30 parts of a compatible reinforcing agent; 10-20 parts of modified hydrogenated nitrile rubber; 4 to 6 parts of fluorinated graphene; 2-5 parts of a vulcanizing agent; and 2-5 parts of an anti-aging agent. The compatibility enhancer, the modified hydrogenated nitrile rubber and the fluorinated graphene are used for enhancing and improving the rubber compound, so that the comprehensive performance of the prepared rubber compound is more excellent, and the requirements of aviation sealing elements are met.

The invention relates to the technical field of adhesives and pouring sealants, and particularly discloses a high-thermal-conductivity and high-temperature-resistant epoxy resin pouring sealant with cold and hot impact resistance, which comprises 100 parts of organic silicon modified epoxy resin with the epoxy value of 0.450-0.550 eq / 100g and the viscosity of 3000-25000mPa. S at 25 DEG C; the capsule wall material is a polyurea-silicon dioxide compound, and the wall thickness of the capsule wall material is 0.5-2 microns; 600 to 1000 parts of surface modified composite heat conduction powder; the core layer is made of nitrile rubber, the shell layer is made of polysiloxane, and the shell layer accounts for 10-30 wt%; through the synergistic effect of the surface modified composite heat-conducting powder and the core-shell structure elastomer, the mechanical strength of the material is remarkably improved while high heat conductivity is guaranteed, and compared with a traditional system, the heat-conducting property and the tensile strength are improved.

The invention relates to the technical field of high polymer materials, in particular to a resin composite material with flame-retardant and insulating properties and a preparation method thereof. The problems that in the prior art, a resin composite material is poor in flame retardance and insufficient in insulating property are solved. The preparation method comprises the following steps: modifying epoxy resin with maleic anhydride and carboxyl modified nitrile rubber to obtain modified epoxy resin; a modified flame-retardant system is obtained by processing the carbon nanotube loaded melamine polyphosphate, the triphenyl phosphate and the magnesium hydroxide; the preparation method comprises the following steps: mixing modified epoxy resin and a modified flame-retardant system, adding modified nano silicon dioxide through a supercritical fluid technology and ultrasonic dispersion, and performing staged curing through a curing agent to obtain a resin composite material; the flame retardant property of the composite material is improved through the synergistic effect of the flame retardant and loading of the carbon nanotubes; and through the synergistic effect of the modified nano silicon dioxide and the carbon nanotubes, the insulating property of the composite material is improved.

The invention discloses a high-toughness conductive and thermal-conductive epoxy adhesive, a preparation method thereof and a conductive film, and belongs to the technical field of conductive materials. Comprising the following raw material components in parts by weight: 100 parts of epoxy resin, 4-25 parts of a latent curing agent, 0.5-5 parts of an accelerant, 200-600 parts of conductive filler, 5-15 parts of an epoxy-terminated polyurethane flexibilizer, 5-20 parts of a core-shell flexibilizer, 5-10 parts of a nitrile rubber flexibilizer, 2-10 parts of a reactive diluent, 0.5-2 parts of a coupling agent and 20-50 parts of a solvent. Through compounding of the over-end epoxy type polyurethane flexibilizer, the core-shell flexibilizer and the nitrile rubber flexibilizer, the prepared conductive adhesive has excellent toughness and bonding characteristics, and meanwhile, the shrinkage stress and thermal stress in the curing process can be reduced.

The invention relates to an oil-resistant and corrosion-resistant cable sheath material for a robot as well as a preparation method and application thereof. The oil-resistant and corrosion-resistant cable sheath material is particularly suitable for harsh environments such as underwater robots. According to the cable material, ultra-high molecular weight polypropylene, nitrile rubber, a fluorine-containing elastomer, a compatilizer, a filler and the like are used as main raw materials, and the ratio and performance of all the components are optimized, so that the oil resistance, acid and alkali corrosion resistance, salt penetration resistance and wear resistance of the cable material are remarkably improved, and meanwhile, the mechanical properties such as high tensile strength and elongation at break are maintained. According to the invention, the EPDM-g-MAH, the EPDM-g-MMA or the EPDM-g-GMA is selected as the compatilizer, so that the problem of compatibility between the polypropylene and the nitrile rubber is effectively solved. In addition, montmorillonite and talcum powder in a specific particle size range are adopted as a filler combination, so that the performance of the cable material is further optimized. The cable sheath material has remarkable advantages in the aspects of oil resistance, corrosion resistance, salt resistance and the like, the stability of the cable sheath material in severe environments is improved, and the cable sheath material is suitable for harsh environments such as underwater robots.

The application provides a kind of fast curing acrylic glue and application, the fast curing acrylic glue is prepared from the following components according to weight parts: butyl nitrile rubber of terminal methacrylate is 13-17 parts;Polyurethane acrylate is 5-8 parts;Monofunctional acrylate monomer is 14-20 parts;Two functionality acrylate monomer is 7-13 parts;Three functionality acrylate monomer is 1-3 parts;Peroxide is 0.5-1.5 parts;Polymerization inhibitor is 0.01-0.04 parts;Coupling agent is 0.5-0.7 parts.The acrylic glue provided by the application has the advantages of fast curing, low volume resistivity after adding silver powder curing, good bonding strength, moderate elastic modulus, and can be used for photovoltaic tile conductive silver glue.

The utility model relates to a continuous pipe, belongs to the technical field of oil and gas development, and particularly discloses a scratch-resistant and erosion-resistant flexible composite continuous pipe which comprises a central pipe, a transition layer, a reinforcing layer, a tensile layer and an outer protective layer which are sequentially arranged from inside to outside, and a wear-resistant and erosion-resistant epoxy resin inner coating is sprayed on the surface of an inner cavity of the central pipe. The outer protective layer is made of a scratch-resistant alloy steel material, so that the strength of the whole pipe is improved; the transition layer is made of nitrile rubber; the reinforcing layer and the tensile layer are formed by weaving composite material belts reinforced by special fiber belts, and a signal cable and a power cable are fixedly arranged in the reinforcing layer and the tensile layer respectively. The composite material continuous pipe can obviously improve the scratch resistance and the fluid erosion resistance of the inner wall, is beneficial to saving materials, improves the utilization rate of the existing composite material continuous pipe material, and is suitable for various oil and gas exploitation.

The invention relates to the field of copper-clad plates, and discloses a high-performance flame-retardant low-dielectric-loss copper-clad plate and a preparation method thereof.The copper-clad plate comprises epoxy resin, benzoxazine resin, composite filler, carboxyl-terminated nitrile rubber, an active diluent, a curing agent and the like; the composite filler is prepared by compounding flame-retardant modifier grafted graphene oxide and epoxy silane modified silicon dioxide hollow spheres; according to the flame-retardant modifier, boric acid and pentaerythritol are used for preparing a double-terminal hydroxyl boron-containing intermediate, then dichlorodiphenyl silane and phenylphosphonic dichloride react with hydroxyl groups at the two ends of the intermediate to prepare a flame-retardant intermediate, and amino silane and vanillic aldehyde react with chlorine atoms at the two ends of the intermediate to prepare an aldehyde modified flame-retardant intermediate; the copper-clad plate prepared by the preparation method disclosed by the invention is low in dielectric constant and dielectric loss, high in heat conductivity coefficient and good in flexibility, and also has excellent heat resistance and flame retardance.

The invention relates to the technical field of overhead conductors, and provides a corrosion-resistant overhead insulated conductor and a preparation method thereof. The corrosion-resistant overhead insulated wire sequentially comprises a conductor, an insulating layer and a sheath layer from inside to outside, and raw materials of the sheath layer comprise nitrile rubber, ethylene propylene diene monomer, a compatilizer, an activating agent, an anti-aging agent, filler, a softening agent, a plasticizer, a vulcanizing agent, an accelerant and a reinforcing agent; the preparation method of the reinforcing agent comprises the following steps: A1, cleaning aramid pulp, adding the aramid pulp into a calcium chloride solution, stirring, cleaning and drying to obtain pretreated aramid pulp; a2, mixing the pretreated aramid pulp and phenolic resin to obtain the reinforcing agent. According to the technical scheme, the problem of poor tensile strength of the sheath layer of the corrosion-resistant overhead insulated wire in the prior art is solved.

The invention discloses a modified epoxy / glass fiber composite material as well as a preparation method and application thereof, and particularly relates to a preparation method of a composite insulating material for high-voltage power equipment, in particular to encapsulation insulation of a dry-type air-core reactor. The invention aims to meet the requirements of key high-voltage power equipment such as the dry-type air-core reactor on the mechanical and insulating properties in the long-term service process of the key high-voltage power equipment. The epoxy resin is mainly used as a matrix, the alkali-free glass fiber cloth is used as a reinforcement, and the epoxy-terminated liquid nitrile rubber and Al2O3 are used as fillers to prepare the composite material, and the composite material has better thermal stability and mechanical properties. The produced encapsulating material for the dry-type air-core reactor is obviously improved in mechanical bending and electrical insulation properties, and the thermal-vibration aging life of the encapsulating material is obviously prolonged. The method is applied to the technical field of high-voltage insulating materials.

The invention relates to heavy anti-corrosion resin and a preparation method thereof, and belongs to the technical field of resin preparation. The formula of the heavy anti-corrosion resin comprises the following components in parts by weight: 80-100 parts of epoxy resin, 6-8 parts of liquid nitrile rubber, 3-5 parts of composite cerous phosphate, 1.5-2.5 parts of modified graphene oxide and 1-2 parts of polyethylene glycol. Wherein the cerous phosphate nanorods are large in specific surface area and high in length-diameter ratio, and are stably compounded with uniformly loaded nano zinc oxide to form double anti-corrosion barriers, and the dispersity and compatibility of the cerous phosphate nanorods can be improved by a dopamine coating; the modified graphene oxide is uniformly dispersed to form a labyrinth type shielding layer, and the modified graphene oxide and the composite cerous phosphate are mutually filled to form a multi-layer barrier; the liquid nitrile rubber and the epoxy resin form an interpenetrating network, so that the impact resistance and the adhesive force are enhanced; the polyethylene glycol improves the flexibility of the resin, adjusts the glass transition temperature and reduces the defects of the coating. The resin prepared according to the formula provided by the invention has an excellent anti-corrosion effect.

The invention relates to the technical field of rubber-plastic composite flame-retardant materials, and provides a graphite rubber-plastic composite flame-retardant material and a preparation method thereof.The preparation method comprises the following processes that nitrile rubber, polyvinyl chloride, dioctyl phthalate, modified expandable graphite, a stabilizer, sulfur and an anti-aging agent are added into a high-speed mixer and mixed to be uniform, and a premix is obtained; and feeding the premix into a double-screw extruder, and carrying out melt blending, extrusion and vulcanization to obtain the composite flame-retardant material. The preparation method has the beneficial effects that the modifier is combined with the expansible graphite and compounded with the nitrile rubber, the polyvinyl chloride and other base materials, so that the flame retardant property and the mechanical property of the prepared composite material are remarkably improved.

The invention discloses a normal-temperature curing ablation-resistant coating and a preparation method thereof, the normal-temperature curing ablation-resistant coating comprises a component A, a component B and a component C, the component A comprises the following raw materials by weight: 20-30 parts of epoxy resin, 30-40 parts of liquid nitrile rubber, 27-50 parts of an ablation-resistant filler, 10-20 parts of a heat-insulating functional filler, and 200-300 parts of toluene; the component B is a curing agent; and the component C is a curing accelerator. By selecting the high-performance polymer-based resin material and adding the ablation-resistant filler and the heat-insulating functional filler, the ablation-resistant and heat-insulating coating protection construction of the equipment under the normal-temperature curing condition is realized; the problems of ablation-resistant coating construction and thermal protection when a fragile cover, a launcher and the like in a launching system cannot use a high-temperature curing system ablation-resistant coating are solved. The coating can realize military technology and civil use, and can be widely applied to fire prevention and heat insulation construction of buildings.

The invention relates to the field of drag chain cables, in particular to a high-flexibility shielding type drag chain cable and a preparation method thereof. The drag chain cable sequentially comprises a conductor layer, a shielding layer and a sheath layer from inside to outside. The conductor layer is formed by compositely twisting silver-plated copper wires and carbon fibers; the shielding layer comprises an inner shielding layer and an outer shielding layer, the inner shielding layer is wrapped by an aluminum-plastic composite belt, and the outer shielding layer is a tinned copper wire woven mesh. The sheath layer comprises the following components: a modified polyurethane elastomer, an ethylene-vinyl acetate copolymer, nitrile rubber, a composite flame retardant, a plasticizer, an antioxidant, a light stabilizer and a lubricant. Through the structural design of the conductor layer, the shielding layer and the sheath layer and the optimization of the material formula of the sheath layer, the problems that an existing drag chain cable is insufficient in strength and flexibility, limited in shielding effectiveness, poor in wear resistance and weather resistance and difficult to consider both flame retardance and mechanical property are solved.

The invention discloses a flame-retardant and wear-resistant rope and a preparation method thereof, and belongs to the technical field of rope processing. The rope comprises a steel wire rope and a rubber sheath; wherein the rubber sheath comprises inner-layer rubber and outer-layer rubber; the inner-layer rubber is prepared from the following components: butadiene styrene rubber, white carbon black, an activating agent, a reinforcing agent, an anti-aging agent, gamma-mercaptopropyltriethoxysilane, a rubber adhesive, cobalt neodecanoate, sulfur and a vulcanization accelerator; the outer-layer rubber comprises the following components: butadiene styrene rubber, nitrile rubber, a flame-retardant wear-resistant reinforcing agent, white carbon black, an activating agent, a reinforcing agent, an anti-aging agent, an antistatic agent, sulfur and a vulcanization accelerator; the cross section of the rope is designed to be flat, the width of the rope is 30-250 mm, the thickness of the rope is 10-40 mm, and the mass of the rope per meter is 0.5-25 kg / m. The prepared rope has excellent flame retardance, wear resistance and antistatic performance, the adhesive force between the rubber layer and the steel wire is large, and the rope is not prone to being abraded or peeled off in long-term use.

The invention relates to the technical field of wires and cables, and discloses a high-voltage cable with a high pressure resistance function, which comprises an outer sheath, a pressure dispersion layer is arranged on the inner side of the outer sheath, soil settlement pressure is initially resisted by the elastic deformation of the outer sheath, and after the pressure is conducted to a buffer sheet on the outer side of an elastic buffer shell, the pressure is dispersed into the buffer sheet. The closed flow channel is driven to extrude the high-elasticity gel in the through square groove, the gel uniformly flows in the circumferential direction of the closed flow channel to convert local concentrated pressure into surface pressure, and uniform expansion of a nitrile rubber extrusion film is matched, so that primary efficient dispersion of the pressure is realized; the omega-shaped supporting frames and the inverted-Y-shaped supports form an elastic supporting system, the inverted-Y-shaped supports provide reverse supporting force by means of triangular stability to slow down expansion of the supporting frames, meanwhile, the adjacent supporting frames absorb bending stress through the elastic metal corrugated plates, the high-strength insulation connecting rods transmit the stress to the global closed frame, and global sharing of single-point stress is achieved.

The invention relates to the field of cables, and discloses a fire-resistant light cable for a safety harbor-returning system for a ship and a processing method thereof.The cable comprises a guide core, a fire-resistant layer, an insulating layer, a cabling layer, an inner sheath layer, an armor layer and an outer sheath layer which are sequentially arranged from inside to outside, and the inner sheath layer and the outer sheath layer are prepared by extruding sheath layer materials; the sheath layer is made of low-density polyethylene, nitrile rubber, ethylene-tetrafluoroethylene copolymer, functional additives, composite filler and auxiliaries; the functional additive is prepared by the following steps: reacting 3, 5-di-tert-butyl-4-hydroxybenzoyl chloride with 2-chloro-4, 6-diamino-1, 3, 5-triazine to obtain a modified hindered phenol component, and then reacting 1, 4-p-xylylene dichloride with 10-(2, 5-dihydroxyphenyl)-10H-9-oxa-10-phosphaphenanthrene-10-oxide to obtain a product, and continuously reacting the product with the modified hindered phenol component; the composite filler is prepared by modifying vermiculite with titanium dioxide and zinc oxide pillared. The cable prepared by the invention has excellent mechanical properties, flame retardance and aging resistance.

The invention relates to the technical field of chemistry, and mainly relates to carboxyl-terminated nitrile rubber modified epoxy resin and a preparation method thereof, and a high-strength single-component adhesive for vehicles and preparation and use methods thereof. The preparation method of the carboxyl-terminated butadiene-acrylonitrile rubber modified epoxy resin comprises the following steps: adding carboxyl-terminated butadiene-acrylonitrile rubber into epoxy resin E51, adding an initiator, heating, carrying out a first stirring reaction under vacuum, adding polyether amine T5000, and carrying out a second stirring reaction to obtain the carboxyl-terminated butadiene-acrylonitrile rubber modified epoxy resin. The carboxyl-terminated nitrile rubber modified epoxy resin prepared by the invention is good in performance, and can improve the mechanical strength and the bonding strength after being applied to an adhesive. According to the invention, the aliphatic carbon long chain is added, so that a chain segment composed of a cured product is softer and higher in degree of freedom, the toughness of colloid is better, and meanwhile, the introduced aliphatic long chain is also beneficial to improving the low-temperature resistance of the adhesive and improving the defect that epoxy resin is easy to brittle and crack at low temperature.

The invention relates to the technical field of cables, and provides a long-life cable for nuclear power, which sequentially comprises a conductor, an insulating layer, a shielding layer and a sheath layer from inside to outside, the sheath layer comprises the following components in parts by weight: 60-70 parts of high-density polyethylene, 12-22 parts of carboxy nitrile rubber, 4-8 parts of a styrene-acrylonitrile copolymer, 0.5-8 parts of a copper metal organic complex, 8-15 parts of palygorskite powder, 2-5 parts of zinc oxide, 0.5-1.3 parts of an antioxidant, 1-3 parts of a plasticizer and 0.2-0.5 part of a vulcanizing agent; the copper metal organic complex comprises copper trifluoromethanesulfonate and copper acetylacetonate in a weight ratio of (1-3): 1. According to the technical scheme, the problem of poor aging resistance of the sheath layer of the nuclear power cable in the prior art is solved.

The invention relates to the field of building waterproof materials, and discloses a composition for a modified asphalt coating material, the modified asphalt coating material, a preparation method and application of the modified asphalt coating material, an energy-saving waterproof coiled material and application of the energy-saving waterproof coiled material. The composition contains a main agent and an auxiliary agent, wherein the main agent comprises matrix asphalt, epoxidized soybean oil, star-shaped SBS, a thermoplastic polyurethane elastomer, butadiene styrene rubber, hydrogenated butadiene-acrylonitrile rubber and a first component; on the basis of the total weight of the composition, the content of the matrix asphalt is 40-55 wt%, the content of the epoxidized soybean oil is 5-10 wt%, the content of the star-shaped SBS is 3-5 wt%, the content of the thermoplastic polyurethane elastomer is 1-8 wt%, the content of the styrene butadiene rubber is 1-5 wt%, the content of the hydrogenated butadiene-acrylonitrile rubber is 5-10 wt%, and the content of the plasticizer is 1-5 wt%. And the content of the first component is 1-2wt%. The modified asphalt waterproof coiled material provided by the invention has the advantages of strong adhesion, good stretchability and weather resistance and the like.

The invention relates to the technical field of rubber materials, and provides a flame-retardant rubber hose and a preparation method thereof. The flame-retardant rubber hose comprises an inner rubber layer, a reinforcing layer and an outer rubber layer, and raw materials of the inner rubber layer and the outer rubber layer respectively and independently comprise the following components in parts by weight: 10-15 parts of MQ silicone rubber, 85-90 parts of nitrile rubber, 3-7 parts of 3-carboxyl-4-hydroxy-acetoacetanilide modified graphene, 35-45 parts of filler, 1-3 parts of an anti-aging agent, 5-10 parts of a plasticizer, 2-5 parts of an activating agent, 1-2 parts of a vulcanizing agent and 0.5-1.5 parts of an accelerant. According to the technical scheme, the problem that the rubber hose in the prior art is insufficient in mechanical property and flame retardant property is solved.