2858 results about "Silicone resin" patented technology

The invention provides a cement paste system with high strength, elasticity and toughness and application of the cement paste system in deep coal bed gas horizontal well cementation, and the cement paste system is prepared from the following raw materials in parts by mass: 40-70 parts of oil well cement, 13-40 parts of fly ash, 15-45 parts of slag, 5.0-20.0 parts of water-based organic silicon resin, 0.1-0.5 part of ultra-high performance polyethylene fiber, 3.0-8.0 parts of calcium oxide and 2.0-5.0 parts of calcium sulfate whisker. 1.0-8.0 parts of nano silicon dioxide, 1.0-6.0 parts of a fluid loss agent, 0.5-2.0 parts of a drag reducer, 0.2-1 part of a defoaming agent and 50-80 parts of water. The cement paste system disclosed by the invention has the characteristics of remarkable low-temperature quick setting and high early strength, also has the advantages of low water loss, controllable thickening, simple preparation operation and the like, and set cement is high in compressive strength, high in breaking strength and very excellent in elastic and tough mechanical properties.

The invention relates to the technical field of heavy anti-corrosion coatings, in particular to a graphene enhanced epoxy modified organic silicon resin heavy anti-corrosion powder coating. The coating is prepared from the following components in parts by weight: 42 to 58 parts of epoxidized epoxy modified organic silicon resin, 0.8 to 2.5 parts of hydroxylated graphene, 6 to 11 parts of nano zirconium dioxide coated boron nitride, 2.5 to 5.5 parts of lanthanum iso-octoate-titanate composite coupling agent, 1.5 to 3.5 parts of bis (3-triethoxysilylpropyl) disulfide, 4 to 7 parts of polyhedral oligomeric silsesquioxane, 5 to 8 parts of curing agent, 0.8 to 1.8 parts of flatting agent and 0.4 to 0.9 part of defoaming agent. 2.5 to 4.5 parts of polyether-ether-ketone micro powder and 1.2 to 2.8 parts of fluorine-containing phosphate ester. According to the invention, the resin is modified through chemical bridging, the modified graphene and the nano-coated powder are matched to construct a synergistic enhancement system, and the interface bonding is optimized by the composite coupling agent. The coating is excellent in adhesive force, corrosion resistance and mechanical property, good in processing fluidity and high in aging resistance and thermal stability, solves the problem that a traditional product is short in performance, and meets the industrial requirement.

The invention discloses low-migration UV ink-jet ink and a preparation method thereof, and belongs to the technical field of novel ink. Comprising the following components in parts by mass: 10-15 parts of a dynamic cross-linked polyurethane acrylate oligomer, 5-8 parts of an epoxy silicone resin oligomer, 2-3 parts of modified silicon dioxide, 4-5 parts of a photoinitiator, 15-20 parts of sorbic acid modified color paste, 1-2 parts of nano cerium oxide and 0.5-1 part of an antioxidant. The molecular chain of the dynamic cross-linked polyurethane acrylate oligomer prepared by the invention contains an active group capable of forming a cross-linked structure and a dynamic covalent bond. The groups and bonds promote molecular chain crosslinking when the ink is cured, a three-dimensional network is formed, and the molecular crosslinking density is improved. Through interaction of palmitic acid modified silicon dioxide and oligomer, the palmitic acid modified silicon dioxide is uniformly dispersed in a matrix and interferes molecular chain movement during curing, so that the crosslinking density is further improved, an ink film layer is more compact and firmer, the wear resistance and the scratch resistance are improved, and the tinting strength and the stability are indirectly enhanced.

The invention relates to the technical field of flame retardance, and discloses a flame-retardant coating and a preparation method thereof.The flame-retardant coating is obtained by adding phenolic resin, polycarbonate, phosphorus-containing modified phenolic resin, boric acid-containing benzoxazine, an organic silicon resin defoaming agent, a propylene glycol film-forming agent and water into a stirrer and stirring. The flame-retardant coating contains a large amount of anacardol, long chains in the anacardol can also be crosslinked to form a net-shaped structure, a net-shaped carbon skeleton structure is formed under high-temperature carbonization, degradation products are inhibited during combustion, and the flame-retardant coating has good fire resistance; wherein oxazolidinone generated by reaction of an epoxy group of epoxidized phenolic resin and an isocyanate group of hexamethylene diisocyanate is a heterocyclic ring with very high heat resistance and also plays a role in synergistic fire resistance; the flame-retardant coating contains a large amount of phosphorus elements, sulfur elements and nitrogen elements, has a good flame-retardant effect, and achieves a synergistic flame-retardant effect.

The invention discloses a multi-layer protection cable resistant to an extreme environment, and belongs to the technical field of cables. The cable is of a seven-layer composite structure design and sequentially comprises a conductor, an insulating layer, a shielding layer, a buffer layer, a waterproof layer, a heat insulation layer and a protective outer layer from inside to outside, and the conductor is made of high-purity oxygen-free copper; the insulating layer is made of a polyimide material and has high temperature resistance, low temperature resistance and excellent insulating property; the shielding layer is composed of a tinned copper wire woven mesh and a high-permeability permalloy foil, and electromagnetic interference is effectively shielded; the buffer layer is made of an elastic rubber material to relieve mechanical stress; the waterproof layer adopts a nanoscale fluorosilicone resin coating and has excellent waterproof performance; the heat insulation layer is made of ceramic fibers and aerogel, and efficient heat insulation is provided; and the protective outer layer is made of a high-strength and corrosion-resistant polyether-ether-ketone (PEEK) material. The cable has excellent high temperature resistance, low temperature resistance, corrosion resistance and electromagnetic interference resistance, is suitable for extreme environments, and ensures stable transmission of electric power and signals under extreme conditions.

The invention relates to the field of heat transfer films, in particular to a single-sided water-based environment-friendly pyrograph film and a preparation process thereof. The water-based release film sequentially comprises an ink absorption layer, a water-based release layer and a base layer from the upper surface to the lower surface, the water-based release layer is obtained by curing a water-based release agent, and the water-based release agent is prepared from the following raw materials in percentage by weight: modified water-based acrylate, deionized water, a cross-linking agent, a defoaming agent and modified polyurethane; the modified water-based acrylate is prepared from alkenyl siloxane, hydrogen-containing polysiloxane, phenyl hydroxyl reticular silicon resin, a bonding aid, a surfactant and water; according to the scheme, the obtained water-based release layer is stably adhered to the base layer, the ink absorption layer can be rapidly separated from the water-based release layer during heat transfer printing, and the transfer printing efficiency and the transfer printing quality are improved.

The invention discloses a modified organic silicon resin, a high-temperature-resistant coating and a preparation method thereof, the modified organic silicon resin is prepared by hydrolyzing at least two different siloxane monomers and then carrying out condensation reaction on the hydrolyzed siloxane monomers and at least one boric acid monomer, and the main chain of the organic silicon resin is of a heteroatom doped structure formed by a Si-O bond, a B-O bond and a B-O-Si bond; at 200-250 DEG C, the modified organic-inorganic high-temperature-resistant composite material is subjected to a self-crosslinking reaction. The high-temperature-resistant coating overcomes the defect that the high-temperature-resistant coating in the prior art cannot meet the high-temperature test, and avoids the defects that organic and inorganic high-temperature-resistant coatings crack, the impact resistance and hardness are not matched, the water resistance is poor, and the wear resistance is poor.

The invention relates to the technical field of power cables, in particular to a heat-aging-resistant crosslinked polyethylene insulated power cable and a preparation method thereof. The cable comprises conductor wire cores, an insulating layer, a filling layer, a composite function layer, a steel tape armoring layer and a sheath layer from inside to outside. The insulating layer is composed of semi-conductive crosslinked polyethylene, silicone resin, nano montmorillonite and an HALS light stabilizer; the filling layer is composed of plasticized glass fabric, polyphenylene sulfide and rare earth oxide; the composite functional layer sequentially comprises a heat-conducting inner layer, a flame-retardant middle layer and an anti-UV outer layer from inside to outside; the sheath layer is composed of polyolefin, white carbon black, ceramic silicone rubber, a flame retardant, polyethylene wax and an initiator. According to the cable, cross-linked polyethylene and silicone resin are preferably selected as heat-resistant materials, heat conduction / flame retardance / UV resistance / armored multi-layer synergistic protection is achieved, the mechanical barrier performance is improved, meanwhile, damage of thermal stress to internal materials is reduced, comprehensive improvement of thermal aging resistance is achieved, and the cable is suitable for high-temperature, high-humidity and frequent thermal cycle harsh environments.

The invention relates to the technical field of high polymer material chemistry, and discloses a high and low temperature resistant anti-yellowing optical adhesive and a preparation process thereof, the high and low temperature resistant anti-yellowing optical adhesive comprises the following components by weight: 40-60% of modified organic silicon resin, 20-30% of urethane acrylate, 10-15% of alicyclic epoxy resin, 0.5-5% of a nano inorganic filler, 0.8-2.5% of an anti-yellowing composite reagent, and the balance of a solvent. The coating is prepared from the following components in percentage by weight: 0.5 to 1.5 percent of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 0.1 to 0.3 percent of fluorine modified polyacrylate flatting agent and 0.3 to 1.0 percent of chloroplatinic acid-divinyl tetramethyl disiloxane complex catalyst. The preparation method comprises the following steps: mixing alpha, omega-dihydroxy polydimethylsiloxane and phenyltrimethoxysilane according to a mass ratio of 8: 2-7: 3, adding 0.3-1.0% of a chloroplatinic acid-divinyl tetramethyl disiloxane complex catalyst, and raising the temperature by stages under the protection of nitrogen, so that the glass transition temperature of the adhesive can reach 120 DEG C below zero and 125 DEG C, and the temperature of the adhesive can reach 120 DEG C below zero and 125 DEG C below zero. And the long-term service requirement of the optical device in an extreme temperature environment is met.

The invention relates to the technical field of titanium dioxide, and discloses a preparation process of oil paint core-coated titanium dioxide, which comprises the following steps: a core layer is rutile type titanium dioxide particles with the particle size range of 0.1-0.5 mu m and the specific surface area of 8-15m < 2 > / g, an inorganic coating layer is composed of silicon dioxide and aluminum oxide according to the mass ratio of 1: (0.2-1.5), the coating thickness is 5-15% of the diameter of the core layer, and the inorganic coating layer is composed of silicon dioxide and aluminum oxide according to the mass ratio of 1: (0.2-1.5). Wherein the silicon dioxide is coated by a hydrolytic deposition method, the aluminum oxide is coated by a sol-gel method, the organic coating layer comprises a copolymer containing a silane coupling agent and organic silicon resin, the organic silicon resin is methyl phenyl silicon resin, the organic coating layer accounts for 1-8% of the total mass of the titanium dioxide, and the surface contact angle of the organic coating layer is greater than or equal to 110 degrees. According to the preparation process of the oil paint core-coated titanium dioxide, an inorganic-organic gradient coating system is constructed, so that the core-coated titanium dioxide has a gloss retention rate of more than 95% (ASTM D523) and a delta E color difference of less than 1.5 (ISO 7724) after 1000 hours in a QUV accelerated aging test, and the weather resistance of the core-coated titanium dioxide is improved by more than 3 times compared with that of the traditional titanium dioxide.

The invention belongs to the technical field of polymer composite materials, and particularly relates to an oil-resistant interior material. The material comprises a porous base material layer, a fluorine-containing polymer and organic silicon resin blended oil-resistant functional layer and a micro-nano structure layer with a periodic micro-bulge array, surface modified nanoparticles are distributed in the functional layer in a gradient manner, and the micro-bulge surface is covered with a perfluoropolyether / fluorinated silicon dioxide composite coating; through a synergistic effect of a low-surface-energy oleophobic interface formed through chemical bonding and curing and a micro-structure capillary lifting effect, anti-permeation barrier of high-viscosity grease is realized, and meanwhile, mechanical wear resistance and thermal stability are improved by virtue of a nano-particle enhanced cross-linked network; and continuous imprinting and an ultraviolet-thermal dual-curing process are combined to achieve high-efficiency manufacturing with zero solvent residue, and finally the interior material with long-acting oil resistance, high environmental tolerance and industrial mass production feasibility is obtained.

The invention discloses a self-cleaning photovoltaic super-hydrophobic coating based on a nano-porous structure and a preparation method of the self-cleaning photovoltaic super-hydrophobic coating, and belongs to the technical field of photovoltaic panel coatings. The coating comprises the following components in percentage by mass: 15-25% of nano porous silicon dioxide particles, 5-10% of a low surface energy modifier, 3-8% of photocatalytic nano titanium dioxide, 30-40% of organic silicon resin and the balance of deionized water. The coating has super-hydrophobicity, photocatalytic decomposition of organic matters and wear resistance, can solve the problems of photovoltaic panel dust accumulation, bird droppings, organic matter pollution and the like, and improves the power generation efficiency of a photovoltaic system.

The invention discloses a silica gel pad with high thermal conductivity and heat resistance and a preparation method thereof, and the method comprises the following steps: preparing a composite thermal conductive filler, mixing boron nitride nanosheets and graphene according to a certain mass ratio, adding a silane coupling agent, carrying out ball milling, adding spherical alumina, and mixing; preparing modified organic silicon resin, wherein methyl vinyl silicone rubber, hydrogen-containing silicone oil, a platinum catalyst and MQ silicon resin react to obtain the modified organic silicon resin; mixing and defoaming the modified organic silicon resin, the composite heat-conducting filler, the flame retardant and the antioxidant to obtain a heat-conducting silica gel mixture; preparing a reinforced base material, carrying out plasma treatment on glass fiber cloth, and then impregnating the glass fiber cloth with vinyl ester resin for pre-curing; and grinding the mixture by three rollers, coating the mixture on a reinforced base material, and heating and curing. The thermal conductivity of the obtained silica gel pad is 2.5-3.5 W / m.K, the volume resistivity is larger than 1012 omega.cm, the long-term heat-resistant temperature reaches 200 DEG C or above, the tensile strength is larger than 5 MPa, the peel strength is larger than 15 N / cm, and the silica gel pad has excellent thermal conductivity, insulativity, heat resistance and mechanical strength.

The invention belongs to the technical field of coatings, and particularly relates to a composite organic silicon anticorrosive coating and a preparation method thereof.The composite organic silicon anticorrosive coating further comprises the following raw materials in parts by weight besides a solvent: 80-95 parts of phenolic epoxy modified organic silicon resin; 1.4 to 3.5 parts of an amine curing agent; 0.08 part to 0.19 part of lithium chloride; 23 parts to 36 parts of filler; the amine curing agent comprises polyamine. According to the composite organic silicon anticorrosive paint disclosed by the invention, under the action of the amine curing agent containing polyamine and lithium chloride, the phenolic epoxy modified organic silicon resin and the filler are mixed and coated on a metal surface, and cross-linking curing of phenolic epoxy molecular chain extension and cross-linking curing of phenolic epoxy molecular chain branch linkage are uniformly carried out; the composite organic silicon anticorrosive coating with excellent impact resistance, hardness and adhesive force is formed.

The invention provides a phenyl-containing organic silicon resin film-forming agent as well as a preparation method and application thereof. The organic silicon resin film-forming agent comprises organic silicon resin as shown in a structural general formula (I): (R13SiO0.5) a (R2SiO1.5) b (PhSiO1.5) c (SiO2) 1 (I), wherein a is greater than 0.2 and less than 1; b > = 0; 0.1 < c < 1. According to the organic silicon resin film-forming agent disclosed by the invention, by reasonably matching the proportion of each unit and introducing a phenyl group, the obtained organic silicon resin film-forming agent not only has excellent film-forming property and flexibility, but also has excellent compatibility with natural grease and other organic matters containing a large number of alkyl groups. In addition, the organic silicon resin film-forming agent also has excellent skin-attaching performance and is difficult to wipe manually after being coated on the skin to form a film, various performances can meet the requirements of daily chemical products, and the organic silicon resin film-forming agent can be widely applied to daily cosmetics, personal care products or medical products.

The invention discloses a high-temperature-resistant metal surface coating and a preparation method thereof, and the high-temperature-resistant metal surface coating comprises the following components in parts by weight: 40-60 parts of ceramic silicon resin, 20-30 parts of polyether sulfone modified organic fluorine resin, 8-10 parts of water-based polyimide resin, 10-15 parts of zinc chrome, 4-6 parts of boron nitride, 3-5 parts of a modified phenolic aldehyde amine curing agent, 8-15 parts of barium sulfate and 8-10 parts of short carbon fiber. The invention relates to the technical field of preparation of metal surface coatings. The metal surface coating is prepared from the following components in parts by weight: 5-8 parts of hollow glass beads, 2-4 parts of a silane coupling agent, 1-3 parts of an organic silicon defoaming agent, 8-12 parts of a dispersing agent, 1-2 parts of a thickening agent and 6-9 parts of a composite coating anti-aging agent. According to the high-temperature-resistant metal surface coating and the preparation method thereof, the ceramic silicon resin, the polyethersulfone modified organic fluororesin and the water-based polyimide resin are adopted as main resin components, a stable structure can be formed at high temperature, and the high-temperature-resistant metal surface coating can bear higher temperature.

The invention belongs to the technical field of ceramic tile surface treatment, and discloses a ceramic tile polishing method which comprises the following steps: performing primary polishing and grinding on a fired semi-finished ceramic tile to obtain a ceramic tile A; waxing the ceramic tile A for the first time by using bright wax to obtain a ceramic tile B; polishing and grinding the ceramic tile B for the second time to obtain a ceramic tile C; and the tile C is waxed for the second time through matte wax, and polishing is completed. Wherein the bright wax comprises water-based silica sol and a high-molecular polymer, and the water-based silica sol comprises nano silicon oxide; the matt wax comprises an organic solvent, modified silicon resin and an organosiloxane monomer. According to the invention, a wax water protection layer with thick pores in the surface filled with bright wax and fine pores in the surface filled with matte wax is formed on the surface of the ceramic tile through a specific polishing process, so that a medium-low-gloss or stone-gloss ceramic tile product with good antifouling performance is obtained, and the problem that the industry needs medium-low-gloss ceramic tile products but is not resistant to fouling is solved.

The invention belongs to the technical field of insulator materials, and particularly relates to an insulating busbar and a preparation method thereof. The preparation method of the insulating busbar comprises the following steps: coating glue on the surface of a busbar base material, and drying to obtain a busbar with a bonding layer; the preparation method comprises the following steps: mixing 40 to 60 parts of silicon resin, 20 to 40 parts of grafted silicon dioxide, 10 to 20 parts of aluminum oxide and 2 to 4 parts of 2, 5-dimethyl-2, 5-bis-(tert-butylperoxy) hexane, so as to obtain a sizing material; placing the busbar with the bonding layer in a mold, then adding a sizing material, and pressing to obtain an insulating busbar; the preparation method of the grafted silicon dioxide comprises the following steps: stirring m-aminobenzoic acid and 3-aminopropyltriethoxysilane for reaction to obtain a grafting solution, and adding silicon dioxide into the grafting solution for grafting reaction to obtain the grafted silicon dioxide.

The invention relates to a high-temperature-resistant insulating coating material for an electromagnetic wire as well as a preparation method and application thereof. The method comprises the steps that the surface of a wire is pretreated; the preparation method comprises the following steps: preparing raw materials of the glass component according to a ratio, melting glass, ball-milling and sieving to obtain glass powder, and then adding the ceramic component and the auxiliary additive component to obtain an inorganic filler; the preparation method comprises the following steps: mixing organic silicon resin, inorganic powder, a solvent, a pigment and an auxiliary agent in proportion to obtain uniform slurry; the method comprises the following steps: coating a wire with a coating, curing the wire after coating is completed, and naturally cooling the wire to room temperature after curing is completed. The electromagnetic wire surface coating can be prevented from aging, peeling, cracking, stripping and losing efficacy at the high temperature of 500 DEG C, the performance of high insulation, impact resistance, long service life and the like of the coating material in the high-temperature environment is improved, it is guaranteed that equipment can tolerate severe natural environments or machine part working environments, and the electromagnetic wire surface coating has high stability and long service life.

The invention belongs to the technical field of organic polymer materials, and particularly discloses a high-toughness, high-strength and high-temperature-resistant organic silicon resin coating and a preparation method thereof.The organic silicon resin coating takes hyperbranched polysiloxane, organic silicon resin and filler as main components, the mass ratio of the hyperbranched polysiloxane to the filler is (0.01-0.05): 1, and the organic silicon resin and the filler are mixed uniformly. The mass ratio of the filler to the organic silicon resin is (3-6): 1. In the preparation process, siloxane and dihydric alcohol react to synthesize hyperbranched polysiloxane, then the hyperbranched polysiloxane is mixed with organic silicon resin, filler and the like and then sprayed to a target matrix, and finally the coating is formed through a stepped heating curing process. The coating provided by the invention effectively realizes synergistic enhancement of mechanical properties and heat resistance, successfully overcomes the technical bottlenecks of difficult high-temperature curing, hard and brittle texture, easy cracking, poor heat stability and the like of the traditional organic silicon resin coating, and is especially suitable for the application field with strict requirements on mechanical properties and heat resistance.

The invention discloses an optical-grade PET release film and a preparation method and application thereof, and belongs to the technical field of PET release liners.The preparation method comprises the steps that organic silicon resin, polyacrylate and functional silicone oil serve as raw materials, hexadecafluorophthalocyanine copper serves as a catalyst, sodium hydroxide provides hydroxyl anions, and hydroxyl-containing fluorinated hydroxyaniline is obtained; amino groups on the surface of fluorinated hydroxyaniline react with carboxyl groups of graphene oxide and are grafted on the surface of graphene oxide, then hydroxyl groups in the fluorinated hydroxyaniline and carboxyl groups of acrylic acid are subjected to esterification reaction under the action of a catalyst, so that acrylic acid is grafted on fluorinated modified graphene oxide, and the fluorinated modified graphene oxide is obtained. Therefore, hydroxyl and epoxy functional groups on the surface of the graphene oxide are consumed, hindering of electron transmission is reduced, the conductivity of the release film is improved, and the antistatic requirement of the release film is met.

The invention discloses a nuclear radiation resistant heat-insulating protective coating for steam pipelines and a preparation method thereof. The coating comprises a surface layer and a bottom layer; the surface layer comprises 30 to 50 parts of a surface layer base, 10 to 30 parts of pigments and fillers, 5-10 parts of metal powder, 18 to 20 parts of a curing agent and 18 to 20 parts of a diluent; the bottom layer comprises 10 to 30 parts of a bottom layer base, 30 to 50 parts of pigments and fillers, 5-10 parts of metal powder, 18 to 20 parts of a curing agent and 18 to 20 parts of a diluent; wherein the surface layer base comprises acrylic modified organic silicon resin; the bottom layer base comprises water glass; the pigments and fillers comprise enamel powder, ceramics and auxiliary fillers; the auxiliary fillers comprise one or more of mica, iron oxide, zinc titanate, fluoropolymer and borosilicate; the coating of the invention can effectively insulate and protect the steam pipeline in a high temperature and nuclear radiation environment, thereby extending the service life of the steam pipeline and improving the safety and reliability of the nuclear power plant.

The invention discloses a waterproof and anti-fouling ceramic tile joint mixture and a preparation method thereof, and relates to the technical field of building materials. The waterproof and anti-fouling ceramic tile joint mixture is prepared from boron-containing silicon resin and cobalt-based MOF composite modified alkyd resin, super-hydrophobic carbon nano tube and silicon dioxide dispersion, cement, lepidolite lithium slag powder, nylon and silicone oil. The ceramic tile joint mixture is prepared by blending boron-containing silicon resin and cobalt-based MOF composite modified alkyd resin, a super-hydrophobic carbon nano tube and silicon dioxide dispersion, cement, lepidolite lithium slag powder, nylon and silicone oil, the surface of the ceramic tile joint mixture is of a rough structure and has hydrophobicity, and the internal extremely compact structure further reduces permeation of water and dirt. The waterproof and anti-fouling performance is remarkably enhanced, meanwhile, the excellent tensile bonding strength is achieved, the firmness and stability of the joint mixture are ensured, and the service life is effectively prolonged.

The invention discloses a sulfydryl silicon resin, a UV light-cured organic silicon optical adhesive as well as a preparation method and application thereof. The optical adhesive comprises sulfydryl silicon resin, vinyl polysiloxane and a photoinitiator, the molar ratio of sulfydryl in the sulfydryl silicon resin to vinyl in the vinyl polysiloxane is (1.2-1.5): 1; the molar ratio of vinyl in the vinyl polysiloxane to the photoinitiator is 1: (0.3-1.8). The optical adhesive disclosed by the invention can be subjected to rapid photocuring based on a click reaction of sulfydryl-vinyl, the preparation method of the optical adhesive does not need a solvent, and compared with conventional OCA, the optical adhesive has a certain filling advantage in the aspect of a full-lamination process, also has relatively high binding power, relatively low stress relaxation rate and excellent creep recovery rate, and can be used for preparing the optical adhesive. Therefore, the optical adhesive is especially suitable for flexible display application scenes represented by folding screens.

The invention discloses low-cost double-network fluorinated silicone rubber and a preparation method thereof, and relates to the technical field of fluorinated silicone rubber. The double-network fluorosilicone rubber comprises the following raw materials: vinyl silicone resin, vinyl fluorosilicone resin, hydrogen-containing fluorosilicone oil, a solubilizing monomer, a multifunctional acrylate monomer, a reinforcing filler, a structured control agent, a free radical thermal initiator, a platinum catalyst and an inhibitor. The double-network fluorosilicone rubber is formed by constructing a carbon-carbon chain network and a siloxane network, the tensile strength, toluene swelling resistance and ATF oil resistance at the high temperature of 150 DEG C of the fluorosilicone rubber are obviously improved, the preparation cost of the fluorosilicone rubber is reduced, and a favorable support is provided for widening the application field of the fluorosilicone rubber.

The invention relates to the technical field of ship protection materials, in particular to a ship accessory rust-proof coating and a preparation method thereof.The ship accessory rust-proof coating comprises the following three-layer structure and components from inside to outside: a basic corrosion-resistant layer comprises 10-30 parts of a nano ceramic material; 5-15 parts of a rare earth oxide; 0.5 to 1.5 parts of aminated graphene oxide; 40 to 60 parts of fluorocarbon resin; 20 to 30 parts of epoxy-polyurethane hybrid resin; 3-8 parts of a zinc phosphate corrosion inhibitor; 2-5 parts of a self-repairing microcapsule; 1-3 parts of a photoinitiator; the interface transition layer comprises the following components in parts by weight: 3-5 parts of gamma-aminopropyltriethoxysilane; 2-5 parts of organic silicon resin coated copper powder; the antifouling surface layer comprises the following components in parts by weight: 10-15 parts of Cu coated SiO2 core-shell particles; 10 to 15 parts of a copolymer of polydimethylsiloxane and methyltrimethoxysilane; and 1-3 parts of an antifouling auxiliary agent. According to the multifunctional protective coating for the ship, through the synergistic effect of multiple components, comprehensive improvement of corrosion resistance, pollution resistance, self-repairing and construction efficiency is achieved, and remarkable technical progress and practical value are shown.

The invention discloses a silane modified polyether flame-retardant adhesive and a preparation process thereof, and relates to the technical field of sealants, a phosphate plasticizer is selected as a plasticizer, a flame-retardant filler is selected from any one or two of aluminum hydroxide and magnesium hydroxide, and silane modified polyether resin is added as flame-retardant resin. All the components are compounded and mixed to obtain the modified flame-retardant adhesive, and the flame-retardant resin, the flame-retardant filler and the plasticizer have a good synergistic flame-retardant effect, so that the flame-retardant adhesive achieves a good flame-retardant effect. According to the invention, mercaptoacetic acid modified silicon resin microspheres are prepared, then the mercaptoacetic acid modified silicon resin microspheres react with lead acetate and zinc acetate by utilizing the adsorbability of sulfydryl to prepare modified silicon resin, and the silicon resin is an anti-dripping flame retardant and can form a stable and compact carbon layer structure after combustion; lead acetate and zinc acetate are beneficial to dehydrogenation and charring in the combustion process, so that the flame retardant property is further improved.

The invention belongs to the technical field of protection. The invention provides a D3O-based protective layer structure and a preparation method thereof. The D3O-based protective layer structure comprises an inner layer, an inner tube bundle layer and an outer layer which are sequentially arranged in parallel from bottom to top, the inner layer comprises a polyester fabric and an organic silicon resin based nano titanium boride and titanium carbide composite coating coated on the polyester fabric; the internal honeycomb-shaped tube bundle layer comprises a honeycomb-shaped frame body formed by a thermoplastic elastomer and a filler filled in the frame body, and the filler is a D30 material; and the outer layer is a butyl rubber layer. The single protective property of a traditional protective layer is changed, the performance of multiple composite materials is combined, the protective layer with multiple functions of wear resistance, softness, hardness, elasticity and the like is formed, and the protective layer has the performance of dispersing impact force, absorbing and buffering impact kinetic energy and preventing friction and can be applied to preparation of facilities or protective tools directly facing human body protection and the like.

The invention particularly relates to a high-temperature-resistant and high-humidity-resistant PUR hot melt adhesive and a preparation method thereof. The PUR hot melt adhesive is prepared from the following raw materials in parts by weight: 30 to 50 parts of polyether polyol, 50 to 70 parts of polyester polyol, 30 to 45 parts of isocyanate monomer, 25 to 40 parts of thermoplastic resin, 6 to 12 parts of organic silicon resin, 5 to 10 parts of maleic anhydride grafted SEBS, 4 to 10 parts of nano silicon dioxide, 0.4 to 1 part of catalyst, 0.2 to 0.8 part of defoaming agent, 0.3 to 1 part of antioxidant and 2 to 5 parts of coupling agent. The PUR hot melt adhesive has good bonding strength, high temperature and humidity resistance, mechanical properties and storage stability, the use reliability of a product can be improved, and the preparation method has the advantages of being convenient to operate and control and high in production efficiency. The preparation method has the advantages of being convenient to operate and control and high in production efficiency by reasonably selecting the raw materials and optimizing the dosage ratio of the raw materials and the preparation process.

The invention provides a damping liquid silicone rubber material which is obtained by curing a damping liquid silicone rubber raw material composition, and also provides damping liquid silicone rubber and a preparation method thereof. The hardness and strength of the liquid silicone rubber material are improved through filling of the MQ silicon resin and the high-white carbon black, meanwhile, a large number of interface areas are formed by the nano-particles and a matrix, microcosmic slippage of the interfaces is generated under the action of dynamic stress, mechanical energy is converted into heat energy through friction and viscous effects between the interfaces and molecular chains, and damping is improved; according to the invention, by introducing methyl-terminated vinyl silicone oil, a silicone rubber chain forms a large number of suspension chain structures, energy dissipation is enhanced, hydrogen-containing chain extension is carried out at a use end, a main polymer has a longer free molecular chain segment to generate a friction effect, and the damping performance of the liquid silicone rubber material is further improved. Experimental results show that the liquid silicone rubber provided by the invention has excellent damping, mechanical and other properties under high hardness.