909 results about "Acrylate copolymer" patented technology

The invention discloses a high-bio-based PHA-acrylate emulsion paint as well as a preparation method and application thereof, and belongs to the technical field of water-based paints. The film former of the latex paint comprises 60% to 90% of polyhydroxyalkanoate (PHA) with a moderate crystallinity of 40% to 60%, and 10% to 40% of a specific bio-based acrylate copolymer with a Tg of not higher than 5 DEG C. According to the invention, a core-shell microstructure in which a rigid PHA phase is wrapped by a flexible acrylate phase is constructed through a key process including ultrasonic treatment. According to the structure, low-temperature film forming can be achieved without a VOC coalescing agent, the bio-based content of an obtained paint film is higher than 70%, the VOC content is lower than 0.5 g / L, the scrub resistance is larger than 7000 times, and the technical problem that high bio-based content and high performance of a PHA coating are difficult to achieve at the same time is solved.

The invention relates to the technical field of folding screen supporting films, and particularly discloses a double-layer buffering supporting film for a flexible folding display screen and a preparation method of the double-layer buffering supporting film. The double-layer buffer supporting film for the flexible folding display screen sequentially comprises a release film layer, a first adhesive layer, a first stainless steel layer, a second adhesive layer, a second stainless steel layer and a protective film layer from top to bottom, the first adhesive layer and the second adhesive layer are prepared by curing the same pressure-sensitive adhesive composition; the pressure-sensitive adhesive composition is prepared from the following raw materials: acrylate copolymer, hydrogenated rosin glyceride, hyperbranched polyesteramide-dopamine conjugate, acylhydrazone bond modified siloxane, a curing agent and a silane coupling agent; the protective film layer comprises the following raw materials: PET particles, nano silicon dioxide, an ethylene-vinyl acetate copolymer and an antioxidant. The double-layer buffer supporting film has the advantages of being high in supporting rigidity and interlayer peel strength, and serious folds caused by long-term repeated folding of the folding screen can be relieved.

Disclosed are methods for enhancing recycled polymer materials for use in manufacturing film / sheet products involves obtaining a polymer starting material for recycling, heating it through melt compounding and / or extrusion processes, and incorporating modifiers such as ethylene / acrylate copolymer, ethylene / acrylate / glycidyl methacrylate terpolymer, and ethylene / glycidyl methacrylate copolymer before extrusion. The resulting modified recycled material can substitute for PVC or other virgin polymers in producing extruded film / sheet products or molded goods. This method enables the creation of mono-layer or multi-layer film / sheet products with improved properties, contributing to sustainable and environmentally friendly manufacturing practices.

The invention belongs to the field of modified self-repairing calcium aluminate cement 3D printing, and particularly relates to a phosphate modified self-repairing calcium aluminate cement 3D printing material and a preparation method thereof. The phosphate modified self-repairing calcium aluminate cement 3D printing material prepared by the invention is prepared from the following raw materials in parts by mass: 60 to 70 parts of calcium aluminate cement, 3 to 7 parts of silica fume, 2 to 4 parts of metakaolin, 0.5 to 3.5 parts of double-template modified calcium bentonite, 0.8 to 1.5 parts of amino modified sodium polyphosphate and 0.15 to 0.8 part of basalt fiber. The invention relates to a concrete anti-microbial agent, which is prepared from the following raw materials in parts by weight: 20-30 parts of water, 20-30 parts of water, 20-30 parts of water, 20-30 parts of nano calcium carbonate, 20-30 parts of nano calcium carbonate, 20-30 parts of magnesium phosphate cement coated bacteria-loaded porous microspheres, 20-30 parts of a polycarboxylate superplasticizer, 20-30 parts of an organic silicon defoaming agent and 25-35 parts of mixing water. The technical-economic cooperation requirement of building 3D printing under complex working conditions is met, and various indexes of phosphate modified calcium aluminate cement applied to the 3D printing technology are met.

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 discloses an electrolytic adhesive, an electrolytic cotton adhesive tape and a preparation method of the electrolytic adhesive. The electrolytic cotton adhesive tape comprises the following components in parts by weight: 5-10 parts of 1, 1 '-ferrocene diformyl chloride, 10-15 parts of acrylic acid beta-cyclodextrin ester, 3-8 parts of polyethylene glycol diglycidyl ether, 10-20 parts of ionic liquid, 1.5-3 parts of a cross-linking agent, 10-15 parts of tackifying resin and 0.5-1.5 parts of an initiator, and a polymer matrix comprises an acrylic acid-hydroxypropyl acrylate copolymer and acrylic acid-2-ethylhexyl ester. Comprising an adhesive layer and an adhesive tape base layer, the adhesive layer is prepared from the electrolytic adhesive, and the adhesive tape base layer is prepared from acrylic foam; the obtained electrolytic cotton adhesive tape has high initial adhesion and viscosity strength after power-on and power-off re-adhesion.

The invention discloses a water-based acrylate composite adhesive emulsion, a water-based acrylate composite adhesive and a preparation method, and belongs to the technical field of acrylate composite adhesives. The waterborne acrylate composite adhesive emulsion is prepared from the following components in parts by weight: 450 to 520 parts of deionized water, 250 to 300 parts of a soft monomer, 119 to 215 parts of a hard monomer, 45 to 55 parts of polyurethane resin, 5.0 to 5.5 parts of a reactive emulsifier, 1 to 11 parts of a non-reactive emulsifier, 1.5 to 10.5 parts of a self-crosslinking monomer and 3.25 to 3.34 parts of an initiator. According to the invention, the non-reactive emulsifier and the reactive emulsifier are simultaneously used for emulsifying and modifying the polyurethane resin and the acrylate copolymer, so that the influence that the non-reactive emulsifier is easy to migrate to the surface of an adhesive film, so that the water resistance and the humidity and heat resistance of the composite adhesive become poor can be weakened; therefore, the moisture and heat resistance of the water-based acrylate composite adhesive can be improved.

The invention discloses an HPVC power cable protection pipe and a preparation method thereof, and relates to the technical field of cable protection pipes. The HPVC power cable protection tube is at least prepared from the following raw materials in parts by weight: 100 parts of high-strength polyvinyl chloride, 35 to 45 parts of epoxy acrylate rubber, 5 to 8 parts of vinyl chloride-g-acrylate copolymer, 8 to 12 parts of epoxidized soybean oil, 3 to 5 parts of calcium-zinc composite stabilizer, 5 to 15 parts of modified hydrotalcite, 0.1 to 0.5 part of beta-diketone, 0.8 to 1.5 parts of calcium stearate and 10 to 20 parts of flame retardant. 12 to 15 parts of modified nano calcium carbonate, 5 to 8 parts of talcum powder, 0.6 to 1.2 parts of antioxidant, 1 to 2 parts of anti-aging agent 4010 and 0.5 to 1.5 parts of ultraviolet light absorber UV531; the modified hydrotalcite is obtained by adding a mixed solution of calcium nitrate and lanthanum nitrate, a sodium hydroxide solution and a sodium bicarbonate solution into a lauryl sodium sulfate solution, mixing and aging, and then carrying out a post-treatment process. The HPVC power cable protection tube prepared by the invention has relatively high strength, good mechanical properties, weather resistance and cold resistance, and long service life.

The invention relates to the technical field of cable preparation, and provides a high-temperature-resistant flame-retardant cable, which comprises a cable core, and an insulating layer and a sheath layer which sequentially coat the cable core from inside to outside, the sheath layer is prepared from the following components in parts by weight: 8 to 10 parts of ethylene-vinyl acetate copolymer, 15 to 18 parts of ethylene-acrylate copolymer, 15 to 18 parts of polyvinyl chloride resin, 15 to 20 parts of filler, 10 to 12 parts of modified glass fiber, 3 to 4 parts of maleic anhydride grafted polyethylene, 0.5 to 1 part of ultraviolet absorbent, 1 to 2 parts of antioxidant and 1 to 2 parts of coupling agent. The cable has the beneficial effects that through introduction of the modified glass fiber and the functional monomer, the mechanical property and the flame retardant grade of the cable are improved, and the stability of the cable in a high-temperature environment is also remarkably enhanced.

The invention relates to the technical field of adhesive tapes, and particularly discloses a UV (ultraviolet) visbreaking anti-acid adhesive tape for thinning flexible glass and a preparation process of the UV visbreaking anti-acid adhesive tape. A UV viscosity-reducing acid-resistant adhesive tape for thinning flexible glass comprises a base material layer, a pressure-sensitive adhesive layer and a release film layer which are stacked in sequence, and the pressure-sensitive adhesive layer is prepared from the following raw materials: 85-120 parts by mass of an acrylate copolymer, 3-5 parts by mass of a cross-linking agent, 1.5-2.5 parts by mass of a photoinitiator, 2-5 parts by mass of an acid-resistant nano filler and 0.2-0.4 part by mass of an amine catalyst; the acrylate copolymer is prepared from the following raw materials in parts by mass: 20-30 parts of an imidazolinyl-containing monomer, 15-25 parts of a large-steric-hindrance alkyl-containing monomer, 45-55 parts of a flexible monomer and 5-10 parts of a carboxyl-containing monomer. The UV visbreaking acid-resistant agent prepared by the invention has relatively good acid resistance and reliable UV visbreaking and high initial bonding balance.

The invention relates to the technical field of coatings, and particularly discloses a high-wear-resistance and high-toughness polyurethane floor coating and a preparation method thereof. According to the technical key points, the high-wear-resistance and high-toughness polyurethane floor coating is prepared from the following components in parts by weight: 100 parts of cross-linked polyurethane matrix resin, 1 to 3 parts of nano ZnO (at) MCM-41 catalyst, 10 to 15 parts of core-shell microsphere powder filler, 5 to 10 parts of fiber filler, 15 to 20 parts of reactive diluent and 1 to 3 parts of photoinitiator, the cross-linked polyurethane matrix resin is composed of a disulfide bond-containing polyurethane prepolymer and an ultraviolet curing acrylate end group; the core-shell microsphere powder filler is prepared by taking a polyurethane-acrylate copolymer as a shell layer and diamond and silicon carbide composite particles as a core layer, and the particle size of the core-shell microsphere powder filler is 200-500nm. The polyurethane floor coating prepared in the invention has excellent performance, and the coating has high wear resistance and high toughness.

The invention discloses a preparation method of high-stability modified emulsified asphalt, and particularly relates to the technical field of asphalt materials, which comprises the following steps (by weight): S01, mixing 30-50 parts by weight of styrene-butadiene latex with the solid content of 45-60%, 10-25 parts by weight of acrylate copolymer emulsion with the glass transition temperature of-20-10 DEG C and 0.5-8 parts by weight of silane coupling agent to obtain a mixture A; a mixed emulsion is obtained; s02, adding 8-15 parts by weight of matrix asphalt, 2-8 parts by weight of a maleic anhydride grafted polypropylene compatilizer with the grafting rate of 1.0%-2.5% and a stabilizer into the mixed emulsion, and performing high-speed shearing at the rotating speed of 3000-5000 rpm for 20-40 min to obtain the modified polymer emulsion. According to the invention, the storage stability, the thermal stability and the interface bonding strength are improved.

The invention discloses a waterproof wear-resistant label and a preparation process thereof, and belongs to the technical field of label paper.The waterproof wear-resistant label comprises surface paper, an adhesive, a film coating layer and release bottom paper, the adhesive comprises the following raw materials in parts by mass: 60-80 parts of an acrylic monomer, 3-5 parts of a polyfunctional group crosslinking monomer, 6-10 parts of a siloxane-acrylate copolymer, 1-2 parts of an initiator, 5-8 parts of nano silicon dioxide and 50-60 parts of a solvent. And a molecular chain of the siloxane-acrylate copolymer contains a boric acid ester bond. A siloxane long chain in the siloxane-acrylate copolymer has low surface energy, can help to form a waterproof barrier, and can effectively prevent water from permeating into an interface between the label and a product, so that the waterproofness of the label is greatly improved; and a dynamic cross-linked network can be formed by introducing boric acid ester bonds, so that the stability is improved, the label structure is reinforced, the wear resistance is improved, and the label can be tightly attached to a base material in a long-term humid environment.

The invention relates to the technical field of polymer encryption materials, and discloses a stress resolution encryption material, a preparation method thereof, a structural color anti-counterfeit label and an encryption method. The stress resolution encryption material has a hard mask / flexible substrate double-layer structure, and the preparation method comprises the following steps: reacting an acrylic acid-co-acrylate copolymer solution with an anthracene derivative to obtain a hard mask material solution; the preparation method comprises the following steps: dissolving acrylate, diacetone acrylamide and an emulsifier in a solvent, and carrying out polymerization reaction under the action of an initiator to obtain an emulsion; curing and drying the emulsion to obtain a latex film; and coating the surface of the latex film with the hard film material solution. According to the stress resolution encryption material, stress programming exposure is carried out through the light source and the photomask, recording of structural color pattern information is achieved, the stress resolution encryption material has the strain resolution characteristic, and the optical performance of the surface changes along with changes of external stimulus. When the strain resolution encrypted information is read, external equipment is not needed, and the strain resolution encrypted information can be stretched by hands and identified by naked eyes.

The invention relates to the technical field of adhesives, in particular to a dual-curing UV tackifying adhesive and a product thereof. The dual-curing UV tackifying adhesive is prepared from the following components in parts by weight: 73 to 92 parts of acrylate copolymer, 6 to 25 parts of UV polyester resin, 0.4 to 1.7 parts of thermal curing agent and 0.3 to 1 part of photoinitiator. According to the dual-curing UV tackifying adhesive disclosed by the invention, the components are compounded, so that the adhesive can be endowed with relatively low and appropriate bonding strength in a thermocuring stage, the bonding and positioning requirements are met, and the dual-curing UV tackifying adhesive can be stripped from an adhered object and has excellent reworkability; and after positioning, the bonding force between the adhesive and the pasted object is increased through UV illumination, so that the pasting effect of the adhesive on the pasted object is ensured.

The invention relates to the technical field of batteries, in particular to a diaphragm, a preparation method thereof and a lithium ion battery. The diaphragm comprises a base membrane and a coating located on the surface of at least one side of the base membrane, the base membrane comprises a polyvinyl alcohol membrane and first particles dispersed in the polyvinyl alcohol membrane, and the first particles comprise at least one of boehmite, aluminum oxide and zirconium oxide; the coating comprises second particles and a first binder, and the second particles comprise at least one of attapulgite, zeolite, sepiolite, montmorillonite and diatomite; the first binder comprises at least one of polyacrylonitrile, polyacrylic acid, an acrylic acid-acrylonitrile copolymer, an acrylic acid-acrylamide copolymer, an acrylonitrile-acrylamide copolymer, an acrylic acid-acrylonitrile-acrylate copolymer, an acrylic acid-acrylonitrile-acrylamide copolymer and an acrylic acid-acrylonitrile-acrylate copolymer. The diaphragm disclosed by the invention is good in thermal stability and liquid absorbency; comprising the diaphragm disclosed by the invention can improve lithium dendrites and cycle performance.

The present application relates to the technical field of daily chemical products, and specifically discloses a shampoo for improving scalp sensitivity, soothing and repairing, and a preparation method thereof. A shampoo for improving scalp sensitivity, soothing and repairing, the raw materials of the shampoo include sodium laureth sulfate, guar hydroxypropyltrimethylammonium chloride, polyquaternium-47, cocamide MEA, sodium citrate, citric acid, sodium chloride, glycyrrhizic acid and its derivatives, salicylic acid and its derivatives, cocamidopropyl betaine, styrene acrylate copolymer, polydimethylsiloxane, bis-aminopropyl polydimethylsiloxane, hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, hydrolyzed keratin, and plant-derived ingredients that can help improve scalp sensitivity, and the balance is deionized water.

The invention relates to a UV viscosity-reducing adhesive, a UV viscosity-reducing adhesive composition, an adhesive tape and a preparation method. The UV viscosity-reducing adhesive comprises an acrylate copolymer, wherein the acrylate copolymer comprises a main chain and a multifunctional acrylate side group grafted on the main chain; the main chain is formed by copolymerizing a plurality of polymeric monomers including an acrylate soft monomer, an acrylate hard monomer and a functional acrylate monomer; the acrylate soft monomer is acrylate long-chain alkyl ester, and the carbon atom number of the long-chain alkyl ester is greater than or equal to 4; the acrylate hard monomer is methyl (methyl) acrylate; the functional acrylate monomer is acrylic acid (ester) containing carboxyl and acrylic ester containing hydroxyl; the polyfunctional group acrylate side group is formed by a UV active substance, each molecule of which contains a plurality of acrylate groups and contains one epoxy group, through a reaction between the epoxy group and the carboxyl group on the main chain. The UV viscosity-reducing adhesive has a UV viscosity-reducing function, does not need to additionally add UV active monomers or low polymers, can enhance the UV light viscosity-reducing effect and improve the viscosity-reducing efficiency, and is also beneficial to reducing the ingredient composition of a UV adhesive material and simplifying the preparation method.

The invention relates to the technical field of high polymer materials, and discloses a high-durability pressure-sensitive adhesive with low VOCs release and a preparation method thereof.The high-durability pressure-sensitive adhesive is prepared from, by weight, 50-80 parts of acrylate copolymer, 0.5-5 parts of cross-linking agent, 10-30 parts of tackifying resin, 1-10 parts of inorganic filler, 0.1-2 parts of antioxidant and 20-50 parts of solvent. Wherein the tackifying resin is at least one of hydrogenated petroleum resin and glycerol ester of rosin, and the inorganic filler is one of nanoscale silicon dioxide and calcium carbonate. Butyl acrylate is used as a main monomer, 2-ethylhexyl acrylate is used as a comonomer, acrylic acid is used as a functional monomer, benzoyl peroxide is used as an initiator, free radical polymerization is carried out at the temperature of 60-85 DEG C under the protection of nitrogen for 4-8 hours, and a copolymer chain with the molecular weight distribution index (PDI) smaller than or equal to 2.5 is formed, so that the viscosity and elasticity of colloid can be balanced; the peeling strength and the weather resistance are improved, and the colloid is prevented from being too soft or embrittled.

The invention discloses an insulating material with corrosion resistance and a production process thereof, and relates to the technical field of insulating materials. The invention discloses an insulating material with corrosion resistance. The invention discloses a flame-retardant coating which is prepared from the following raw materials in parts by weight: 60 to 80 parts of bisphenol A epoxy resin, 20 to 30 parts of polyether-ether-ketone, 10 to 15 parts of nano aluminum nitride, 5 to 10 parts of boron fiber, 4 to 8 parts of molybdenum disulfide, 3 to 6 parts of poly (p-phenylene benzobisoxazole), 2 to 5 parts of vinyl trimethoxy silane, 20 to 30 parts of dimethyl sulfoxide, 8 to 12 parts of melamine cyanurate, 6 to 10 parts of magnesium aluminum hydroxide, 1 to 3 parts of Chimassorb 944 and 10 to 20 parts of modified polyvinyl alcohol. The coating is prepared from the following components in parts by weight: 20-30 parts of modified cellulose, 8-15 parts of modified cellulose, 3-7 parts of nano-zirconia, 5-10 parts of polysiloxane elastomer and 7-12 parts of fluorine-containing acrylate copolymer. The raw materials of the insulating material have a synergistic effect, and the prepared insulating material not only has conventional electrical insulation, but also has excellent heat resistance, corrosion resistance and the like, integrates hardness, flexibility, flame retardance and self-repairing performance, greatly expands the application range of the insulating material, and provides powerful support for industry development.

The invention discloses a polymer, a method for preparing the polymer, an isolating membrane, a battery and a power utilization device, the polymer comprises an acrylate copolymer, monomers of the acrylate copolymer at least comprise a first monomer, and the first monomer comprises a fluorine-substituted acrylate monomer. Therefore, the binding power of the polymer can be improved, when the polymer is used as a binding agent in a battery, for example, the polymer is used as a binding agent on an isolating membrane, the swelling of the polymer in electrolyte is small, the binding effect between the isolating membrane and a pole piece can be effectively improved, and the cycle performance of the battery is further improved.

The invention discloses an integrally-formed multifunctional shoe sole and a preparation method thereof, and belongs to the field of shoe products, the method comprises the following steps: carrying out primary ejection on a first insole material and a second insole material by adopting double-color ejection equipment to obtain an insole parison; in the first insole material, an ethylene-vinyl acetate copolymer, an ethylene-butyl acrylate copolymer, random polyolefin, a styrene-butadiene-styrene block copolymer and an ethylene-butyl acrylate-maleic anhydride copolymer are used as matrix resin; carrying out molding and mold pressing on the insole blank and the laminated sheet rubber, so that the insole blank is foamed and crosslinked at a high temperature, and meanwhile, the sheet rubber is vulcanized and crosslinked at the same temperature; the coated raw rubber sheet is a mixed rubber sheet mainly taking rare earth butadiene rubber, natural rubber, polyacrylate rubber and brominated butyl rubber as main bodies. According to the invention, double-color sole foaming cross-linking and raw rubber vulcanization are integrally combined and molded, the process is simplified, the cost is reduced, and the production environment is improved.

The invention discloses a thermal visbreaking pressure-sensitive adhesive tape and a preparation method thereof.The adhesive tape comprises a release layer, a thermal visbreaking layer and a base material layer which are sequentially arranged in a stacked mode, and the thermal visbreaking layer is obtained by coating thermal visbreaking glue and then curing the thermal visbreaking glue; the heat-reduced adhesive comprises the following raw material components in parts by weight: 90-120 parts of acrylate copolymer resin, 5-15 parts of modified resin, 0.01-1 part of a curing agent, 2-10 parts of modified thermal expansion microspheres and 20-60 parts of a solvent. The modified thermal expansion microspheres are specially modified, so that the compatibility and weather resistance of the modified thermal expansion microspheres in an acrylate pressure-sensitive adhesive can be improved, and the thermal viscosity-reducing adhesive prepared by adding the modified thermal expansion microspheres into an acrylate copolymer resin has excellent normal-temperature adhesive force which is not inferior to normal adhesive tape adhesion; and after the adhesive tape particles are expanded at a proper temperature, controllable viscosity reduction and even viscosity loss requirements can be met, and no residual adhesive is generated on the surface of an adhered object.

The invention discloses a water-based nano anti-crack waterproof agent for concrete and a preparation method of the water-based nano anti-crack waterproof agent, and relates to the field of building materials. 10 to 25% of a silane emulsion; 20-40% of an acrylate copolymer emulsion; 0.5 to 5% of modified nano cellulose; 3-8% of a polycarboxylic acid water reducer; 0.1-1% of a defoaming agent; and the balance of water. Nano silica sol permeates concrete capillary pores and participates in a hydration reaction to improve the compactness of a matrix, a three-dimensional toughening network is constructed in cooperation with oriented crosslinking of carboxyl on the surface of TEMPO oxidized nano cellulose and gamma-aminopropyl silane, and micro cracks are covered with a flexible sealing layer formed by an acrylate copolymer. Active inhibition of cracks and long-acting blocking of water are synergistically realized, shearing force is regulated and controlled in a segmented manner through a stepped stirring process, the demulsification risk of an emulsion is avoided, and the storage stability of a system is remarkably improved.

The invention relates to the technical field of hot melt adhesive films, in particular to a hot melt adhesive film for bonding PET and metal, a preparation method of the hot melt adhesive film and a composite board. The hot melt adhesive film comprises a first adhesive layer, a core layer and a second adhesive layer; the first adhesive layer comprises a maleic anhydride terpolymer and a maleic anhydride grafted polymer, and the maleic anhydride grafted polymer comprises at least one of a maleic anhydride grafted ethylene-acrylate copolymer and maleic anhydride grafted SEBS; in the first adhesive layer, the total proportion of the maleic anhydride terpolymer and the maleic anhydride grafted polymer is greater than or equal to 80wt%; the second adhesive layer comprises maleic anhydride grafted polyethylene; the core layer comprises polyethylene; the mass ratio of the first adhesive layer to the core layer to the second adhesive layer is (2-4): (3-5): (2-4). The hot melt adhesive film disclosed by the invention can be used for bonding PET (Polyethylene Terephthalate) and a metal plate and has good water resistance, and the bonding performance still meets the requirements after the hot melt adhesive film is soaked in water for 48 hours.

The invention discloses a branched polyolefin material modified hot melt adhesive. The hot melt adhesive comprises the following components: 40-60 parts of an ethylene-vinyl acetate copolymer, 20-40 parts of a branched polyolefin-acrylate copolymer, 2-20 parts of a branched polyolefin material, 5-30 parts of tackifying resin and 2-20 parts of a viscosity modifier, the branched polyolefin-acrylate copolymer is prepared from a bromine-containing branched polyolefin material and an acrylate monomer through a polymerization reaction; the bromine-containing branched polyolefin material is prepared by carrying out polymerization reaction on ethylene or ethylene and C3-C5 olefin and a bromine-containing monomer; the branched polyolefin material has a long and short branched chain structure, the weight-average molecular weight is 800-500000g / mol, and the branching degree is 50-220 / 1000C. The polyethylene-acrylate multipolymer with high branching degree is designed and combined with a branched polyolefin material, so that the melt flowability of the polymer is improved, the wettability of the surface of an adhered object is enhanced, the adhesive strength and the tensile strength are enhanced, the flexibility and the temperature resistance are improved, the shear strength and the peel strength are remarkably improved, and particularly, the heat resistance is remarkably improved; the device is suitable for high-temperature working environments.

To provide a method for manufacturing a primer composition that exhibits not only good adhesion after an applied (a coated and cured) area is immersed in water, but also good adhesion even when used (applied) to a wet surface.SOLUTION: There is provided a method for manufacturing a primer composition including the steps of: [i] mixing (A) a hydrolyzable aminoalkyl silane and / or its polycondensate, (B) a bifunctional epoxy monomer and / or its polymer, (C) a hydrolyzable organosilane compound other than (A) component and / or its partial hydrolysis condensate, and a part or all of (D) a non-alcoholic organic solvent, under reflux stirring with moisture blocked at a specified temperature to prepare a homogeneous reaction mixture; and [ii] adding the remaining (D) component and (E) an alkoxysilyl group-containing (meth)acrylate copolymer to the reaction mixture prepared in step [i] under moisture-blocking conditions and mixing them at 20 to 60°C to prepare a homogeneous composition.SELECTED DRAWING: None

The invention relates to a preparation method of a high-elastic wear-resistant rubber sole. Comprising the following steps: S1, uniformly mixing 50-60 parts by weight of epoxy resin, 10-20 parts by weight of a polyurethane-acrylate copolymer, 20-30 parts by weight of an elastic complex, 3-5 parts by weight of stearic acid, 1-4 parts by weight of zinc oxide, 3-5 parts by weight of zinc stearate and 2-4 parts by weight of zinc oxide; the preparation method comprises the following steps: uniformly mixing 1-3 parts by weight of magnesium oxide and 1-3 parts by weight of an AC foaming agent in an internal mixer at the temperature of 60-70 DEG C, internally mixing for 30-60 minutes, continuously mixing for 15-20 minutes at the temperature of 90-95 DEG C, granulating after open milling, and standing for 20-24 hours at room temperature to obtain a molding master batch; s2, putting the molding master batch into a foaming mold for compression molding, controlling the mold closing pressure to be 15-25MPa, then heating to 180-190 DEG C together with the foaming mold, performing vulcanization treatment for 8-15 minutes, cooling, and performing standing treatment at room temperature for 20-24 hours to obtain the high-elasticity wear-resistant rubber sole. According to the high-elastic wear-resistant rubber sole, the preparation method and the damping shoe, a good damping effect is achieved, and certain mechanical strength is achieved.

The invention discloses an easy-to-peel heat shrink tube, which adopts an ethylene-acrylate copolymer as matrix resin, because ethylene-acrylate is a copolymer and contains an acrylate side group, the crystallization of ethylene-acrylate is disturbed, the distance between main chain vinyl molecules is increased, and the entanglement structure of molecules is reduced. The cohesion strength of an ethylene-acrylate molecular chain is reduced; furthermore, the orientation degree of an internal molecular chain of the ethylene-acrylate copolymer of the extruded pipe is controlled through an extrusion process, and the orientation degree is ensured to be in a range of 40%-95%, so that the molecular chain and a chain segment of the ethylene-acrylate copolymer extend from a freely curled disordered state to an orientation direction, and the entangled structure of molecules is further reduced; furthermore, after the easy-to-peel heat-shrinkable tube shrinks by more than 35% at the temperature of 200 DEG C, the molecular chain orientation degree of the easy-to-peel heat-shrinkable tube is 30-85%, and the normal-temperature tearable performance of the easy-to-peel heat-shrinkable tube is realized.

The invention belongs to the technical field of leather treatment, and particularly relates to a waterproof breathable coating for leather and a preparation method thereof.According to the waterproof breathable coating for the leather and the preparation method thereof, siloxane modified acrylate copolymer and functional nano filler are introduced, good flexibility and mechanical strength can still be kept in a low-temperature environment, and it is ensured that a coating cannot become brittle or crack due to temperature reduction; besides, the freezing point of the system is effectively reduced due to the existence of the anti-freezing agent, the material is prevented from being frozen at a low temperature, and meanwhile, good film-forming property and softness of the coating under a low-temperature condition are ensured due to the combined action of the coalescing agent and the plasticizer; finally, the waterproof and breathable laminated glue for the leather provided by the invention not only can provide excellent waterproof and breathable properties at normal temperature, but also can maintain stable physicochemical properties under extremely cold conditions, so that the service life of a leather product is greatly prolonged, and the application range of the leather product is widened.