160 results about "Vinylsilane" patented technology

The invention belongs to the technical field of fabrics, and particularly relates to a graphene-based wear-resistant outdoor jacket fabric and a preparation method thereof. The graphene-based wear-resistant outdoor jacket fabric comprises base cloth and a wear-resistant layer on the surface of the base cloth, the base cloth comprises graphene polyamide fibers and polyester fibers; the wear-resistant layer comprises the following raw materials in parts by weight: 3-8 parts of a vinyl silane coupling agent modified wear-resistant agent, 1-4 parts of vinyl POSS, 1-5 parts of an emulsifier, 0.1-0.5 part of a photoinitiator and 100 parts of water; the wear-resistant agent comprises fluorinated graphene and cubic boron nitride. The wear-resistant outdoor jacket fabric provided by the invention has excellent wear resistance, water resistance and soaping resistance.

The invention relates to the technical field of preparation of cross-linking agents for rubber, in particular to a cross-linking agent, a preparation method of the cross-linking agent and application of the cross-linking agent in rubber preparation. The cross-linking agent is prepared through multi-stage structural design and functional modification and comprises the following steps: firstly, synthesizing a porous carrier by a template method, loading a divinyl benzene cross-linking agent after vinyl silane alkenylation modification, forming inner-layer packaging through Fe < 3 + >-tannic acid coordination, and performing surface functional modification by adopting 1, 9-decadiene to obtain the cross-linking agent. And finally, performing outer layer physical coating through low-melting-point paraffin. The cross-linking agent has a unique dual-threshold gating release characteristic, the outer paraffin provides physical protection at a mixing temperature, the inner coordination network is controllably dissociated at a vulcanization temperature, and on-demand release of cross-linking active components is realized. When the cross-linking agent is applied to rubber preparation, the uniformity of a cross-linking network can be remarkably improved, the cross-linking efficiency is improved, and the problems that a traditional cross-linking agent is easy to consume in advance, uneven in distribution and the like are solved.

The invention relates to the technical field of wire and cable insulating materials, and provides a room-temperature self-crosslinking flame-retardant insulating material and a preparation method thereof.The preparation method comprises the steps that a magnetic metal hydroxide flame retardant is prepared through a sol-gel method, and modified vinyl silane is prepared through a ring-opening polymerization reaction; the preparation method comprises the following steps: performing ordered grafting granulation on polyolefin resin, a magnetic metal hydroxide flame retardant and modified vinyl silane to prepare matrix granules; and blending the matrix granules with the catalytic granules, carrying out extrusion molding on the blended granules, and standing at room temperature to obtain the room-temperature self-crosslinking flame-retardant insulating material. According to the room-temperature self-crosslinking flame-retardant insulated cable and the preparation method thereof, the flame retardant property can be improved, the crosslinking efficiency and cost can be optimized, and the mechanical property and the insulating property can be optimized.

The invention relates to the field of adsorption materials, and discloses a lithium ion adsorbent and a preparation method and application thereof. The lithium ion adsorbent comprises a polyvinyl chloride molecular chain and a polymer molecular chain A, wherein the polymeric molecular chain A comprises a structural unit I from crown ether containing vinyl and a structural unit II from a vinyl silane modified lithium ion sieve. The vinyl silane modified lithium ion sieve in the lithium ion adsorbent can be connected with a polymer molecular chain through a chemical bond, so that the lithium ion sieve can be uniformly dispersed on a polymer skeleton, and the lithium ion adsorbent has excellent structural stability, high adsorption capacity and high magnesium-lithium selectivity; and the solution loss rate of the lithium ion sieve is obviously reduced.

The invention relates to the technical field of high polymer materials, and discloses a low-smoke halogen-free irradiation crosslinking polyolefin cable sheath material and a granulation process thereof, the raw materials comprise an ethylene-vinyl acetate copolymer, an ethylene-octylene copolymer, an epoxy group-containing terpolymer and functionalized composite powder, the powder system superfine aluminum hydroxide is subjected to high-temperature grafting through vinyl silane, after cooling, an active coating layer is constructed by zinc methacrylate, active magnesium oxide and a lubricant, and the process adopts matrix resin main feeding, powder side feeding and low-temperature low-shear extrusion, and is subjected to air-cooled die surface hot cutting and electron beam irradiation crosslinking forming. The covalent bond and ionic bond synergistic enhancement mechanism is utilized, the contradiction between mechanical property loss and processing rheological property deterioration is solved under the high filling amount of 137-160 parts, the active components are effectively prevented from being scorched in the early stage, and the material is endowed with excellent tensile strength, elongation at break and surface quality.

The invention provides high-weather-resistance and anti-aging silicone rubber and a preparation method and application thereof.The high-weather-resistance and anti-aging silicone rubber is prepared from, by mass, 100 parts of methyl vinyl silicone rubber, 30-60 parts of white carbon black, 6-8 parts of an alkyl silane coupling agent, 0.5-2 parts of a hindered amine silane coupling agent, 0.5-2 parts of a vinyl silane coupling agent and 3-5 parts of vinyl MQ silicone resin. 1-1.5 parts of vinyl hydroxyl silicone oil; 1-3 parts of organic peroxide; wherein the hindered amine silane coupling agent is obtained by reacting hindered amine with an isocyanate silane coupling agent. Through the formula design, the excellent toughness of the silicone rubber can be maintained, and meanwhile, the long-term weather resistance and the mechanical property retention rate of the material under ultraviolet radiation and humid and hot conditions can be remarkably improved.

The invention belongs to the technical field of polymer materials and electric wires and cables, and discloses a high-toughness cable composite material and a preparation method and application thereof. The preparation method comprises the following steps: (1) adding silane-terminated liquid polybutadiene, hydroxyl silicone oil and an organic tin catalyst into an anhydrous solvent, uniformly mixing, heating to 80-100 DEG C, carrying out dealcoholization condensation reaction, and evaporating to remove the solvent after the reaction is completed, so as to obtain an organic silicon modified polybutadiene cross-linking agent; and (2) adding the obtained organic silicon modified polybutadiene cross-linking agent, PE, EVA, a reinforcing filler and an initiator into an extruder in an oxygen-free atmosphere, carrying out melt blending cross-linking reaction, and carrying out extrusion molding to obtain the high-toughness cable composite material. Compared with a conventional vinyl silane cross-linking agent, the organic silicon modified polybutadiene cross-linking agent disclosed by the invention can remarkably improve the mechanical strength, flexibility and weather resistance of the obtained cross-linked polyethylene composite material.

The invention discloses a water-based organic silicon coating and a preparation method thereof, the water-based organic silicon coating is prepared by reaction of an organic silicon prepolymer and hydrogen-containing silicone oil, the organic silicon prepolymer is prepared by reaction of a siloxane reactant and a vinyl silane reactant, and no Si-H bond structure exists in the organic silicon prepolymer. The invention develops a synthetic route for preparing the metal protection type water-based organic silicon coating through two components, the number of Si-H bond structures in the reaction is reduced by controlling the Si-H bond structures in the organic silicon prepolymer, coating bubbling caused by generation of gas is prevented, and the crosslinking density is reduced. An inorganic-organic polymer coating with a certain space structure is formed under the action of nano-scale fumed silica through addition reaction of an organic silicon prepolymer and hydrogen-containing silicone oil and hydrolysis-condensation reaction of methoxyl of the organic silicon prepolymer, so that the performance stability of a finished product of the coating is improved; and the coating has excellent mechanical property, anti-sticking property and anti-corrosion property.

The invention belongs to the technical field of coating materials, and particularly relates to an ablation-resistant anti-aging coating on the surface of an aircraft and a preparation method of the ablation-resistant anti-aging coating. A silane coupling agent containing an epoxy group and vinyl and boric acid are used as raw materials, an organic silicon-boron hybrid oligomer with a Si-O-Si and Si-O-B bond stereo structure is obtained by adjusting the ratio of the silane coupling agent to the boric acid and serves as a bridge, and phenolic resin, hydrogen-containing silane and vinyl silicone rubber are combined together to form the ablation-resistant anti-aging coating. Wherein an epoxy group and a phenolic hydroxyl group are subjected to a condensation reaction, vinyl and a platinum catalyst form a compact cross-linked structure through hydrogen-containing silane, and the obtained coating has a lower ablation rate, better anti-UV weather resistance and higher flexibility, is suitable for long-time protection of the surface of an aircraft, and has a better ablation protection effect under shear airflow impact.

The invention discloses hand feeling modified silica gel special for textiles and a preparation method of the hand feeling modified silica gel, and belongs to the field of functional textile coating materials. The high-temperature-resistant silicone oil composition is prepared from the following components in parts by weight: 45 to 65 parts of phenyl silicone oil matrix, 10 to 20 parts of polyether block copolymer, 5 to 12 parts of CaCO3 / glass bead compound, 1.5 to 3 parts of closed polyurethane siloxane, 2 to 4 parts of rosin derivative grafted vinyl silane and 0.5 to 1.5 parts of Pt / I-catalyst. The coating is endowed with low-temperature flexibility and initial high friction property through phenyl silicone oil; the polyether block copolymer realizes humidity response adjustment; nano CaCO3 and glass beads are compounded through KH-550 to form a gradient micro-nano structure, so that the air permeability is high, and the frictional resistance is reduced; closed polyurethane siloxane (120 DEG C deblocking-NCO) and rosin derivative silane (160 DEG C methoxy condensation) are subjected to sequential synergistic bonding of the chemical fiber, and high adhesive force is provided; the comprehensive performance of the coating is obviously improved.

The invention discloses a preparation method of active nano silicone rubber core-shell particle pre-dispersion liquid. The preparation method comprises the following steps: pre-emulsifying an organic silicon monomer, a silane coupling agent and a vinyl silane coupling agent, then carrying out hydrolytic polycondensation under the condition of an acid catalyst, synthesizing a nano silicon rubber core particle emulsion, taking the nano silicon rubber core particle emulsion as a seed, dropwise adding a double-bond-containing pre-emulsion under the condition of the catalyst, grafting a double-bond-containing monomer shell through the vinyl silane coupling agent, and carrying out vacuum drying to obtain the nano silicon rubber core particle emulsion. The preparation method comprises the following steps: preparing a nano silicone rubber core-shell particle emulsion, taking the nano silicone rubber core-shell particle emulsion as a seed, dropwise adding a functional monomer pre-emulsion, grafting a reactive group shell to obtain an active nano silicone rubber multi-layer core-shell particle emulsion, carrying out spray drying on the emulsion, and uniformly dispersing the emulsion in epoxy resin in a melt blending manner to prepare an active nano silicone rubber core-shell particle pre-dispersion liquid. The pre-dispersion liquid prepared by the invention has the characteristics of good UV light permeability, toughness, heat resistance, electrical performance and the like, so that the pre-dispersion liquid has good application value in the fields of 3D printing, electronics, aerospace and the like.

The invention relates to the technical field of flame-retardant clothing, and discloses a light flame-retardant fire-fighting jacket and application thereof.The jacket is prepared from flame-retardant aramid fabric, and the flame-retardant aramid fabric is prepared through the following steps that (1) surface treatment is conducted on the aramid fabric, vinyl functional groups are grafted on the surface of the aramid fabric, and a flame-retardant flame-retardant fabric is obtained; the surface modified aramid fiber fabric is obtained; (2) preparing a flame retardant with a core-shell structure; and (3) adding the compound in the step (2) into absolute ethyl alcohol, stirring to obtain a uniform suspension, adjusting the pH value to 3-4 by adding an acid solution, reacting at 180-200 DEG C for 8-12 hours, and then filtering and drying to obtain the flame retardant with the core-shell structure. (4) dispersing the flame retardant in the step (3) in ethanol, adding 2wt% of a vinyl silane coupling agent, uniformly mixing, and reacting for 3-6 hours; and adding the surface modified aramid fabric in the step (1) into ethanol, and adding an initiator for reaction. According to the application, the durability of the flame retardant property of the aramid fabric can be improved.

This invention relates to a method for producing a stable copolymer composition, comprising adding an organic solvent, an alkyl-alkoxysilane and / or a C1-C9 alcohol, a monomer, and a free radical initiator to a reactor. The copolymer composition is based on a vinyl-branched ester polymer modified with a vinylsilane and a dehydrating agent. The copolymer composition can be formulated to a desired viscosity, can be applied using conventional techniques, and can be optimized for curing as a single-package system at room temperature in the presence of a suitable catalyst.

The invention discloses a wear-resistant anti-icing easy-to-deice coating for power equipment and a preparation method thereof, and relates to the technical field of coatings. The wear-resistant anti-icing easy-to-deice coating for the electrical equipment is prepared from the following raw material components in parts by weight: 40 to 60 parts of water-based fluorocarbon resin dispersion, 5 to 15 parts of perfluorosilane surface modified filler, 3 to 10 parts of light-absorbing heating material, 0.5 to 2 parts of wetting dispersant, 0.2 to 0.6 part of defoaming agent, 0.2 to 1 part of flatting agent, 0.5 to 1 part of anti-aging agent, 15 to 25 parts of deionized water and 12 to 20 parts of water-based isocyanate curing agent. The perfluorosilane surface modified filler is obtained by modifying a filler with a perfluorosilane coupling agent; the light-absorbing heating material is a Fe3O4 / C composite material or a product obtained by further modifying the Fe3O4 / C composite material through a vinyl silane coupling agent and then reacting and grafting with amino-terminated hyperbranched polyamide.

The present application discloses an aluminum oxide-coated film for aging-resistant packaging and a preparation method thereof, belonging to the field of thin films. An aluminum oxide-coated film for aging-resistant packaging comprises a substrate, one side of which is sequentially provided with a first polyurethane coating, a first aluminum oxide coating, a second polyurethane coating, a second aluminum oxide coating, and a third polyurethane coating; the first polyurethane coating, the second polyurethane coating, and the third polyurethane coating can all be cured by polyurethane coating, and the polyurethane coating contains a main agent, an isocyanate curing agent, an auxiliary agent, and water; the main agent contains a hydroxyl-terminated polyurethane emulsion, silica sol, and a modified aluminum sol, and the modified aluminum sol is obtained by reacting the aluminum sol with a vinyl silane coupling agent, and the resulting grafted mixture is then polymerized with a fluorine-containing acrylate monomer and styrene. The present application has the advantages of reducing the difficulty of producing solar photovoltaic backsheets and maintaining aging resistance.

The application provides a high-filler-filled biodegradable material and a preparation method thereof, and belongs to the field of polymer materials.The biodegradable film material comprises the following components: 30-65 parts of PBAT resin, 1-10 parts of PLA resin, 1-5 parts of a plasticizing coupling modifier, 35-55 parts of filler, and 0-1 part of an opening agent.The plasticizing coupling modifier is prepared by copolymerization of raw materials comprising a capped polyester plasticizer, a vinyl silane coupling agent and glycidyl methacrylate under the action of an initiator, and the side chain has a large number of polydiacid-diglycol ester plasticizing groups and silane coupling groups, so that the PBAT resin, the PLA resin and the filler can be combined through hydrogen bonds and chemical bonds, and are fully infiltrated, and the plasticizing coupling modifier also has an epoxy group, which increases the compatibility of the PBAT and the PLA resin.The prepared biodegradable film has a higher filler ratio, a lower cost, fewer film crystal points and good mechanical properties.

The invention relates to the technical field of batteries, in particular to a battery and a power utilization device, and the battery comprises a positive pole piece, a negative pole piece and electrolyte; the positive pole piece comprises a positive current collector and a positive active layer arranged on at least one surface of the positive current collector, the positive active layer comprises a positive lithium supplement agent, and the positive lithium supplement agent comprises at least one of lithium ferrite and lithium nickelate; the electrolyte comprises a first additive, the first additive comprises a compound with a structure shown in a formula (I), R1, R2 and R3 are respectively and independently selected from one of allyl, divinyl methyl silane, vinyl dimethyl silane or trivinyl silane, and at least one of R1, R2 and R3 is selected from one of divinyl methyl silane group, vinyl dimethyl silane group or trivinyl silane group. By adding the first additive into the electrolyte, dissolution of iron ions or nickel ions in the lithium supplement agent is inhibited, the structural stability of the positive electrode lithium supplement agent is enhanced, and the cycle life of the battery is prolonged.

The invention relates to the technical field of sheathed cables, and particularly discloses a high-temperature-resistant fluororubber sheathed cable capable of being vulcanized and bonded and a preparation method of the high-temperature-resistant fluororubber sheathed cable. Fluorosilicon resin and vinyl silane are adopted for modifying a flexible microporous polytetrafluoroethylene film, vinyl silane is adopted for modifying ethylene propylene rubber, and the interlayer bonding performance of the cable is improved; then tetrafluoroethylene-propylene rubber and modified silicone rubber are introduced into 246 type fluororubber, so that the high-temperature mechanical property, modulus and creep resistance of a cable sheath layer are improved, and the cable which is good in interlayer bonding property and still has good performance in a high-temperature and high-pressure extreme environment is formed.

The application discloses a bisoxazoline pyridine functionalized porous organic polymer and preparation and application thereof; firstly, a styryl functionalized PyBox monomer (VPyBox) is designed and synthesized, and VPyBox, styrene and divinylbenzene are subjected to free radical polymerization under initiation of azobisisobutyronitrile in a certain proportion to obtain a series of porous organic polymers (POP-PyBox); the POP-PyBox can be used as a solid N , N , N tridentate ligand for Co-catalyzed hydrosilylation of arylalkynes with diphenylsilane; the heterogeneous catalyst system developed by the application has a catalytic activity comparable to that of a homogeneous catalyst reported in the literature, and the catalyst is easy to separate and recover; the recovered catalyst can be recycled for more than 6 times, which can not only greatly reduce the preparation cost of vinylsilane, but also simplify the post-treatment process and reduce the three wastes, and has a good practical application prospect.

The application discloses a polyurethane adhesive containing phosphorus-silicon synergistic flame-retardant structure, which is prepared from the following raw materials in parts by weight: polyol 50-80 parts, isocyanate 20-40 parts, end-hydroxyl phosphorus-silicon synergistic flame-retardant structure monomer 5-20 parts, chain extender 2-8 parts, and catalyst 0.1-1 part; the end-hydroxyl phosphorus-silicon synergistic flame-retardant structure monomer is a dihydric alcohol compound containing phosphorus and silicon, which is prepared from 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and vinyl silane as main raw materials, and the general formula of the molecular structure is HO-R-Si(OR')3; wherein R is an organic chain segment containing a DOPO structural unit, and R' is methyl or ethyl. The application synthesizes a phosphorus-containing dihydric alcohol with a clear structure and a hydrolysable silane group, and prepares a main-chain phosphorus-silicon-containing intrinsic flame-retardant polyurethane through a copolymerization mode by taking the dihydric alcohol as a reactive monomer.

The invention relates to the technical field of functional current collectors, in particular to a corrosion-resistant PP functional current collector and a preparation method and application thereof. The preparation method of the corrosion-resistant PP functional current collector comprises the following steps: S1, carrying out plasma treatment on a PP base film, and carrying out modification treatment on the PP base film by adopting a vinyl silane coupling agent to obtain a pretreated PP base film; s2, carrying out modification treatment on the pretreated PP base membrane by adopting a fluorine-containing cross-linking agent to obtain a modified PP base membrane; and S3, depositing a metal layer on the modified PP base film to obtain the corrosion-resistant PP functional current collector. The corrosion-resistant PP functional current collector can be used as a current collector in a lithium ion battery.

The invention discloses an adhesive and a preparation method thereof, the adhesive is used for bonding perfluoroether rubber and metal, and the adhesive is prepared from the following raw materials in parts by weight based on 100 parts of the adhesive: 80-98 parts of absolute ethyl alcohol; 0.2 to 5 parts by weight of a borane ammonia complex; 1 to 10 parts by weight of vinyl silane; and 1-5 parts by weight of silica sol. The adhesive provided by the invention is a combination of a borane ammonia complex, vinyl silane, nano silicon dioxide sol and absolute ethyl alcohol in specific parts; by selecting the combination of the borane ammonia complex, the silane coupling agent KH570 and the nano silicon dioxide sol to replace the existing common perfluoroether rubber / metal adhesive, the perfluoroether rubber / metal adhesive has excellent peel strength and high temperature resistance, and can be used for manufacturing door plates and racket products of semiconductor equipment.

The invention relates to the technical field of liquid silicone rubber, and particularly discloses a wear-resistant liquid silicone rubber composite material and a preparation method thereof. The composite material comprises a component A and a component B, wherein the component A comprises vinyl-terminated silicone oil, nano aluminum oxide double-modified by a polyhydroxy polymer and a vinyl silane coupling agent, and a platinum catalyst; the component B comprises vinyl-terminated silicone oil, hydrogen-containing silicone oil, an inhibitor and active polysilazane, the active polysilazane is modified polysilazane containing vinyl or epoxy group, and the active group of the active polysilazane can chemically react with the active group on the surface of the modified nano aluminum oxide to form a chemically bonded interface transition layer. According to the invention, through a dual modification strategy and introduction of active polysilazane, a chemically bonded rigid-flexible bicontinuous network structure is constructed, so that the wear resistance of the composite material is improved while excellent tensile strength, tear strength and elongation at break are maintained.

The application provides a transparent flexible double-crosslinked silicon-based modified cellulose aerogel and a preparation method thereof. Vinyl silane and methyl silane are used as precursors, a double-crosslinked method of radical polymerization / hydrolysis polycondensation is adopted, a polysiloxane homogeneous sol is prepared, a cellulose gel is immersed in the homogeneous sol, and finally the supercritical drying process is performed to prepare the aerogel of the application. Due to the double-crosslinked structure of radical polymerization and hydrolysis polycondensation, the aerogel has good transparency and strength. Meanwhile, the introduction of methyl silane and the unique characteristics of cellulose endow the aerogel with good hydrophobic property and excellent flexibility. In addition, the aerogel material has an extremely low thermal conductivity, and the heat preservation and insulation performance is far superior to that of traditional heat preservation materials, so that the aerogel has a broad application prospect in the fields of heat preservation and insulation and transparent glass.

This invention relates to the field of chemical grouting materials technology, and particularly to a method for preparing nano-silica sol grouting suitable for high-temperature conditions. The aim is to solve the problems of existing grouting materials being unusable at high temperatures, and the low gel strength and uncontrollable gel rate of single silica sols at high temperatures. This invention provides a method for preparing nano-silica sol grouting suitable for high-temperature conditions, comprising the following steps: Step 1: Surface modification of small-particle-size spherical nano-silica sol with vinylsilane to graft carbon-carbon double bonds onto its surface, obtaining modified nano-silica sol; Step 2: Adding water-soluble vinyl monomers and an initiator to the modified nano-silica sol; Step 3: Adding an appropriate amount of gelation promoter to obtain a high-strength grouting material with controllable gelation time at 70-120℃.

A polymer electrolyte separator, a preparation method therefor, and a use thereof. The polymer electrolyte separator comprises an electrolyte salt, a polymer, and an inorganic filler modified by a modifying agent. The modifying agent comprises one or more of: 3-glycidyloxypropyltriethoxysilane, 3-glycidyloxypropylmethyldimethoxysilane, 3-glycidyloxypropylmethyldiethoxysilane, [8-(glycidyloxy)-n-octyl]trimethylsilane, dimethoxymethyl-3-methoxypropylsilane, 3-glycidyloxypropyldimethylethoxysilane, and a vinyl silane coupling agent. The polymer electrolyte separator has both excellent electrical conductivity and structural stability, facilitating improvement of the electrochemical performance and cycle life of batteries.

The invention relates to the technical field of ceramic-based composite materials, in particular to a preparation method of a two-dimensional C / SiC composite material with a short compact period, which comprises the following steps: mixing silicon carbide ceramic powder with water, ball-milling, placing in a potassium hydroxide solution, then placing in a vinyl silane coupling agent solution, and carrying out modification reaction to obtain vinyl modified silicon carbide particles; dissolving polycarbosilane, vinyl polycarbosilane and a peroxide initiator in normal hexane, and then adding the vinyl modified silicon carbide particles to obtain a coating precursor; compounding the coating precursor and the carbon fiber fabric into a prepreg by adopting slit type coating; laminating, curing and cracking the prepreg; and repeating the lamination curing and cracking steps for 1-3 times to obtain the two-dimensional C / SiC composite material. According to the preparation method disclosed by the invention, the two-dimensional C / SiC composite material with high compactness and excellent mechanical properties can be obtained by only 1-3 times of curing-cracking, and the preparation method has the characteristics of short preparation period, low cost and excellent mechanical properties.

The invention discloses a coating material for an optical fiber, a preparation method of the coating material, an optical fiber insulator and a preparation method of the optical fiber insulator. The coating material is prepared from the following raw material components in parts by weight: 40-60 parts of tetrahydrofuran acrylate, 30-50 parts of carboxyl modified polyurethane acrylate oligomer, 5-15 parts of organic silicon modified epoxy acrylate bifunctional coupling agent, 2-5 parts of vinyl silane surface modified SiO2 nano-particles, 1-5 parts of organic silicon modified epoxy acrylate, 1-5 parts of organic silicon modified epoxy acrylate, 1-5 parts of organic silicon modified epoxy acrylate, 1-5 parts of organic silicon modified epoxy acrylate and 1-5 parts of organic silicon modified epoxy acrylate. 0.1 to 1 part by weight of a triaryl sulfonium hexafluoroantimonate cationic initiator and 0.5 to 4 parts by weight of a TPO free radical photoinitiator. According to the embodiment of the invention, active chemical bonding of the optical fiber coating layer and the alicyclic epoxy resin sheath is realized through the organic silicon modified epoxy acrylate bifunctional coupling agent in the coating layer, and mismatch of physical gaps and thermal stress of a multi-material interface is reduced; therefore, the interface strength, the internal insulation performance and the long-term reliability of the optical fiber insulator can be fundamentally improved.

The application provides a high-transparency silicone rubber material and a preparation method thereof. The silicone rubber material comprises the following raw materials in parts by mass: 100 parts of methyl vinyl phenyl rubber, 10-30 parts of modified white carbon black, 3-5 parts of vinyl MQ silicone resin, 4-6 parts of polymethyl hydrogen siloxane, 1-1.5 parts of vinyl hydroxyl silicone oil and 0.001-0.003 parts of platinum catalyst. The modified white carbon black is obtained by grafting benzotriazole silane coupling agent and silicone oil onto the modified white carbon black. The benzotriazole silane coupling agent is obtained by urethane reaction of hydroxy benzotriazole compound and isocyanate silane coupling agent. The silicone oil grafting silane coupling agent is obtained by addition reaction of hydrogen-terminated polydimethylsiloxane and vinyl silane coupling agent. The silicone rubber material has good transparency and light stability.

A crosslinked polyolefin separator which has gels with a longer side length of 50 μm or more in a number ranging from 0 to 3 per 1 m2 of the separator, and shows a standard deviation of absorbance ratio between the center of the separator and the side thereof ranging from 0.01 to 0.5 is provided. A method for manufacturing the crosslinked polyolefin separator is also provided. The method includes (S1) preparing a polyolefin porous membrane, and (S2) applying a coating solution containing an initiator and alkoxy group-containing vinylsilane onto at least one surface of the porous membrane. The coating solution can permeate even to the inside of exposed pores. Thus, it is possible to provide a crosslinked polyolefin separator in which silane crosslinking occurs uniformly even inside of the pores.