2391 results about "Nitrile rubber" patented technology

The invention discloses a high-flexibility winding-resistant robot cable, and relates to the technical field of robot cables, the robot cable comprises a plurality of cable cores, the cable cores are wrapped by a belting layer, a twisting gap of the cable cores is filled with a filler, the belting layer is wrapped by a shielding layer, and the shielding layer is wrapped by an outer sheath layer; the outer sheath layer is prepared from the following components: 80-100 parts of PVC resin, 30-60 parts of nitrile rubber powder, 20-30 parts of a polyolefin thermoplastic elastomer, 10-30 parts of trioctyl trimellitate, 5-15 parts of dioctyl sebacate, 5-25 parts of aluminum hydroxide, 8-15 parts of carbon black, 10-20 parts of modified carbon fiber, 3-6 parts of a heat stabilizer, 1-3 parts of an antioxidant and 1-3 parts of a lubricant; optimized balance of flexibility, bending resistance, mechanical strength and environmental adaptability is achieved, and a high-performance and long-service-life key component is provided for modern industrial automation and robot application.

The invention relates to an oil-resistant flame-retardant composite sealing material as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. Fluororubber, nitrile rubber, ethylene propylene diene monomer, chlorinated polyethylene and maleic anhydride grafted polypropylene are adopted to prepare composite rubber according to a certain proportion; then adding hydrogenated polyisobutene, a vinyl polydimethylsiloxane-polymethylsiloxane silsesquioxane cross-linked polymer, an E-GMA-VA terpolymer, magnesium hydroxide, basalt fiber powder, ammonium polyphosphate, triphenyl phosphate, expansible graphite, zinc borate, a vulcanizing agent, an accelerant, an anti-aging agent, a plasticizer and other components according to a proportion, and performing banburying in special steps; the prepared sealing material has good mechanical properties, especially has oil resistance and flame retardance, and the service life is greatly prolonged.

The invention discloses a medium-temperature curing high-temperature-resistant high-adhesion epoxy structural adhesive film as well as a preparation method and application thereof. The preparation method comprises the following steps: reacting high-rigidity diisocyanate with polyether polyol to obtain a polyurethane prepolymer, then adding bisphenol epoxy resin to carry out grafting reaction, and then adding carboxyl-terminated nitrile rubber to react with an epoxy group to obtain the high-temperature-resistant high-adhesion epoxy resin. And finally, mixing with a curing system and coating to obtain the intermediate-temperature curing high-temperature-resistant high-adhesion epoxy structural adhesive film. The preparation process disclosed by the invention is reasonable, and the high-temperature resistance of the adhesive film is remarkably improved by introducing high-rigidity groups such as naphthalene ring, biphenyl or p-benzene while the excellent processing property of the adhesive film is ensured; and through the synergistic effect of the polyurethane flexible chain segment and the nitrile rubber, the toughness and the adhesive property of a resin system are improved, and the loss of the resin in the forming process is reduced.

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 belongs to the technical field of shoe materials, and particularly relates to a high-elasticity shoe material and a preparation process thereof. The high-elasticity shoe material comprises the following components in parts by weight: 70-80 parts of thermoplastic polyurethane elastomer; 10 to 20 parts of an ethylene-vinyl acetate copolymer; 15 to 20 parts of an ethylene-octylene copolymer; 10 to 15 parts of nitrile rubber; 8-10 parts of a composite antibacterial agent; 2-4 parts of a foaming agent; 0.6-1 part of zinc oxide; 1-2 parts of an antioxidant; 10-15 parts of a composite filler; the components are subjected to a blending foaming process to prepare the shoe material which is moderate in hardness, light in weight and high in elasticity, and the prepared shoe material also has good strength, wear resistance, yellowing resistance, antibacterial property and flame retardance.

The invention discloses a hydraulic oil cylinder with high buffering performance, and relates to the technical field of hydraulic oil cylinders, the hydraulic oil cylinder comprises a reciprocating motion assembly, and the reciprocating motion assembly is used for driving a piston rod to do reciprocating rectilinear motion. During use, when a sealing piston is about to move to a stroke terminal, a buffer ring generates thrust on an annular plate, so that two nitrile rubber pads are sunken, meanwhile, a reset spring is extruded and contracted, and under the cooperation of the reset spring and the nitrile rubber pads, the sealing piston is preliminarily buffered, and in addition, a connecting rod pushes a buffer plate to move in an arc-shaped cover; the piston rod body is filled with hydraulic oil and gradually extrudes polyurethane foam, the polyurethane foam has good buffering performance, the filled hydraulic oil generates viscous resistance, the extruded hydraulic oil can enter the buffering cavity through the oil inlet cavity, secondary buffering is conducted on the sealing piston under the cooperation of the polyurethane foam and the filled hydraulic oil, the movement speed of the piston rod body is gradually reduced, and the sealing effect is improved. And stable speed reduction and stopping are realized.

The invention provides composite positive electrode slurry, a positive electrode and a preparation method thereof, and relates to the field of lithium batteries. The solid content of the slurry is 40-60wt%, and the slurry comprises the following raw materials in parts by weight: 1-5 parts of a binder, 2-4 parts of a conductive agent, 100 parts of a blended positive electrode active material and the balance of a solvent; the binder comprises hydrogenated butadiene-acrylonitrile rubber emulsion, and the mass fraction of the hydrogenated butadiene-acrylonitrile rubber emulsion combined with acrylonitrile is 10-50%; the blending type positive electrode active material comprises the following components in percentage by mass: 10-90% of lithium manganese iron phosphate and 10-90% of high-nickel ternary layered oxide. The positive electrode comprises an aluminum foil current collector and composite positive electrode slurry, and the composite positive electrode slurry is coated on the surface of the aluminum foil current collector. According to the present invention, the positive electrode of the positive electrode slurry composed of the HNBR binder, the conductive agent and the solvent is combined with the blending type positive electrode active material composed of the lithium manganese iron phosphate and the high-nickel ternary layered oxide, and the positive electrode is applied to the lithium ion secondary battery, and the battery has high energy density and high-voltage cycle stability.

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 relates to the technical field of preparation of antibacterial gloves, in particular to a preparation method of degradable breathable antibacterial gloves, and an emulsion formula of the degradable breathable antibacterial gloves comprises the following components in parts by weight: 100 parts of nitrile rubber modified polylactic acid, 5-10 parts of modified antibacterial filler, 1-3 parts of an anti-aging agent, 0.5-3 parts of a vulcanizing agent, 0.3-2 parts of a vulcanization accelerator and 0.5-1 part of a foaming agent. Through a high-molecular compound composition system, nitrile rubber modified polylactic acid, modified antibacterial filler and other components are compounded to prepare the glove with controllable degradability, lasting antibacterial property and good air permeability; on the basis of covalent binding of silicon dioxide loaded with antibacterial groups and modified chitosan, the synergistic antibacterial effect of the modified antibacterial filler is achieved, and therefore the antibacterial performance of the glove is improved.

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 provides a foamed rubber and plastic material without nitrosamine and a preparation method thereof, and relates to the technical field of foamed rubber and plastic materials. The foamed rubber-plastic material free of nitrosamine is prepared from nitrile rubber, polyvinyl chloride, chlorinated polyethylene, chlorinated paraffin, epoxidized soybean oil, aluminum hydroxide, a foaming agent, a foaming promoter, carbon black, an organic silicon modifier, antimony trioxide, solid paraffin, stearic acid, polyethylene glycol, sulfur, an anti-aging agent, a vulcanization accelerator and the like. The vulcanization accelerator provided by the invention is an accelerator ZBEC and an accelerator TBzTD. According to the invention, by adjusting the composition and proportion of the raw materials and combining the use of the composite vulcanization accelerator, the preparation of the foamed rubber and plastic material without nitrosamine is realized, and the environmental protection property and safety of the product are improved.

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 high-strength corrosion-resistant ship cable and a preparation method thereof.The high-strength corrosion-resistant ship cable comprises a guide core, an insulating layer wrapping the outer portion of the guide core, a shielding layer wrapping the outer portion of the insulating layer and a sheath layer wrapping the outer portion of the shielding layer; the sheath layer comprises the following components in parts by weight: 40-55 parts of polyvinyl chloride, 20-30 parts of nitrile rubber, 5-15 parts of modified basalt fiber, 3-8 parts of a flame retardant, 1-2 parts of a lubricant and 0.1-1 part of a light stabilizer; the modified basalt fiber is a basalt fiber grafted macromolecular antioxidant modified basalt fiber, and the flame retardant is prepared from the following raw materials: phosphonitrilic chloride trimer, DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) and a hydroxyl-terminated phosphorus-containing intermediate. The cable is endowed with excellent mechanical property, salt spray corrosion resistance, thermo-oxidative aging resistance and flame retardant property.

The invention belongs to the technical field of new materials of conveying belts, and discloses a graphene modified whole-core flame-retardant conveying belt for a coal mine and a preparation method of the graphene modified whole-core flame-retardant conveying belt. Comprising mixed rubber and a polyester fabric located in mixed liquid, and the mixed rubber is prepared from, by weight, 100-120 parts of chloroprene rubber, 20-30 parts of hydrogenated nitrile rubber, 5-10 parts of graphene composite particles, 1-3 parts of magnesium hydroxide and 1-3 parts of dioctyl terephthalate. The conveyor belt prepared by the invention not only has relatively high mechanical strength and tear resistance, but also has good flame retardant property.

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 coating lithium battery diaphragm and a preparation method thereof, the rubber coating lithium battery diaphragm comprises a base membrane and a coating coated on the base membrane, the coating is obtained by coating rubber coating slurry, and the coating comprises hydrogenated butadiene-acrylonitrile rubber, polyacrylonitrile and polyimide. The HNBR is introduced into the rubber coating slurry, so that the rubber coating lithium battery diaphragm has relatively high binding power; pI is introduced, so that the rubber coating lithium battery diaphragm has relatively high temperature resistance; according to the invention, polyacrylonitrile is innovatively introduced, and meanwhile, the good compatibility of polyacrylonitrile and HNBR brings uniformly-distributed pores to the diaphragm, the fact that polyacrylonitrile has a dense and uniformly-distributed pore-forming function in the oil-based coating diaphragm is found for the first time, and the air permeability of the diaphragm is improved.

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 relates to a flame-retardant rubber and plastic thermal insulation material and a preparation method thereof, and belongs to the technical field of high polymer materials. The flame-retardant rubber-plastic thermal insulation material comprises the following components in parts by weight: 50-75 parts of nitrile rubber, 20-45 parts of PVC resin, 10-15 parts of a plasticizer, 1-10 parts of a foaming agent, 1-5 parts of a foaming promoter, 10-40 parts of a composite flame retardant and 2-6 parts of a modified anti-aging agent, cyclohexanehexol phosphate in the composite flame retardant is heated and dehydrated into phosphoric acid, a barrier layer is formed to inhibit release of combustible materials, and dimethylallylamine combusts to absorb heat and cooperates with phosphorus-oxygen double bonds for flame retardance; a pre-product in the modified anti-aging agent reacts with a free radical of a rubber molecular chain, so that the heat resistance and the aging resistance of the material are improved, a maleimide group enhances an intermolecular acting force, the rigidity and the heat resistance of the molecular chain are improved, and material aging caused by high temperature is reduced; the flame-retardant rubber and plastic thermal insulation material prepared by the invention not only has an excellent anti-aging effect, but also has good flame retardance.

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 discloses a high-strength cold-resistant cable material and a preparation method thereof. The cable material disclosed by the invention has the advantages of high strength, cold resistance, corrosion resistance, flame retardance and the like, and is widely applied to severe cold rural areas, wind power stations, solar equipment and the like. According to the cable material, the PVC resin serves as a main raw material, nitrile rubber with excellent cold resistance is added as an auxiliary raw material, various auxiliaries are added, the comprehensive performance of a matrix is improved, the toughness of the matrix is improved through the synergistic effect of the modified filler and the macromolecular plasticizer, and then the matrix still has good performance at low temperature; and the matrix has the advantages of high strength, cold resistance, corrosion resistance, flame retardance and the like.

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 invention relates to the field of catalysts, and discloses a nitrile rubber hydrogenation catalyst and a preparation method and application thereof.The nitrile rubber hydrogenation catalyst comprises a carrier and an active metal component loaded on the carrier, and the carrier comprises a composite metal oxide and silicon dioxide; wherein the composite metal oxide is M < 1-x > Al < x > O (x + 2) / 2, x is 0.1-0.4, and M is selected from at least one of Mg, Ni and Zn; wherein the active metal component is Os; wherein in terms of metal elements, the content of the active metal component is 0.01-5wt% on the basis of the total weight of the catalyst. The catalyst provided by the invention is used for preparing hydrogenated butadiene-acrylonitrile rubber by hydrogenation of butadiene-acrylonitrile rubber, and has high selectivity and hydrogenation degree.

The invention relates to the technical field of polyethylene plastic, and discloses modified polyethylene plastic and application thereof in preparation of high-strength garbage cans, and the modified polyethylene plastic is prepared from the following raw materials in parts by weight: 70-90 parts of polyethylene resin, 10-30 parts of modified nitrile rubber, 1-8 parts of TD I modified montmorillonite and 0.3-0.5 part of an antioxidant; long-chain alkyl and hydroxyl are introduced into a side chain of the modified nitrile rubber, so that the nitrile rubber and polyethylene resin have better compatibility, the hydroxyl can react with an isocyanate group of TD I modified montmorillonite, and the compatibility and interface bonding strength between the montmorillonite and the nitrile rubber are improved; the montmorillonite is uniformly dispersed in the polyethylene / nitrile rubber composite material, so that the tensile strength and other mechanical properties of the material are remarkably improved.

The invention relates to the field of cable materials, and discloses a flame-retardant anti-aging cable material and a preparation method thereof.The flame-retardant anti-aging cable material is prepared from, by weight, 45-70 parts of nitrile rubber, 20-40 parts of natural rubber, 7-12 parts of modified carbon nanotubes, 5-10 parts of composite filler, 3-5 parts of nano-zinc oxide, 2-4 parts of stearic acid, 1-3 parts of sulfur and 0.1-0.5 part of accelerant; the modified carbon nano tube is prepared by modifying a flame retardant and p-phenylenediamine on the surface of a carbon nano tube through a chemical reaction; the composite filler is prepared by taking a titanium dioxide nanosheet as a carrier and growing silicon dioxide nanoparticles in situ, and the cable material is endowed with excellent mechanical properties, flame retardance and ageing resistance by adding the modified carbon nanotubes and the composite filler.

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.