108results about How to "Increase crosslink density" patented technology

The application discloses a low-silica gel release protective film for copper foil and a preparation method thereof. The protective film comprises a double-resistant PET substrate layer, a low-silica gel layer and a release layer which are sequentially stacked. The low-silica gel layer is formed by coating and curing silica gel pressure-sensitive adhesive. The silica gel pressure-sensitive adhesive comprises methyl vinyl silicone rubber, vinyl polysiloxane, methyl hydrogen-containing MQ silicone resin, side-chain hydrogen-containing polymethyl hydrogen siloxane, low-release additive, platinum gold catalyst, inhibitor and solvent. The low-release additive comprises fumed silica treated by hexamethyldisilazane and vinyl-containing cage-type silsesquioxane. The application realizes the inhibition of small molecule release from the source, effectively guarantees the coating uniformity of lithium battery copper foil and the safety performance of the battery.

The application belongs to the technical field of sand consolidation agent preparation, and particularly relates to a sand consolidation agent and a preparation method thereof. The sand consolidation agent is composed of component A and component B. The component A is composed of the following raw materials: a diphenyl phenolic epoxy resin, hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene, modified nano calcium zirconate, cage octakis(aminophenyl)silsesquioxane, n-butyl glycidyl ether, KH-550 silane coupling agent, polyether amine, fumed silica and defoaming agent. The component B is composed of the following raw materials: polyborosilazane and 2-ethyl-4-methyl imidazole. The cage octakis(aminophenyl)silsesquioxane in the raw material of the sand consolidation agent strengthens the network structure stability through chemical bonding, the hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene realizes thermal stabilization through chemical bonding and physical dispersion, and the modified nano calcium zirconate provides physical support. The three components synergistically improve the heat resistance of the system.

This invention discloses a cashew nut shell bisphenol and its preparation method and application. The preparation method of the bisphenol is as follows: First, cashew nut shell phenol, formaldehyde, and an alkaline catalyst are mixed and stirred evenly, and reacted at a certain temperature to obtain hydroxymethylated product A; product A is washed with water several times until the pH is neutral, and then centrifuged to remove water to obtain product B; product B is mixed with phenol and an acidic catalyst and stirred evenly, and reacted at a certain temperature to obtain product C after the phenol-alcohol reaction; product C is washed with water until neutral, and then distilled under reduced pressure to obtain the cashew nut shell bisphenol product. This invention utilizes the structural characteristics of cashew nut shell phenol, which has both a benzene ring and an alkane chain, to obtain a bisphenol structure that combines the rigidity of the benzene ring with the toughness of the long alkane chain on cashew nut shell phenol, while protecting the highly reactive phenolic hydroxyl group. Moreover, this bisphenol is green and low in toxicity, meeting the requirements of environmental protection and sustainable development. The epoxy coating prepared using this bisphenol has high crosslinking density, good corrosion resistance, and excellent mechanical properties.

The invention relates to the technical field of building energy conservation, heat preservation and heat insulation materials, and discloses a flame-retardant phase-change heat preservation and heat insulation building material and a preparation method thereof.The preparation method of the flame-retardant phase-change heat preservation and heat insulation building material comprises the following steps that paraffin is loaded in ZnO / CuO hollow microspheres to obtain phase-change microspheres; modifying the phase change microspheres with polydopamine and acryloyl chloride to obtain functionalized phase change microspheres; the preparation method comprises the following steps: carrying out graft polymerization on a phosphorus-containing eugenol compound and 1-amino-5-hexene-2-alcohol on the functionalized phase change microspheres to obtain multifunctional phase change microspheres; polyether polyol, functionalized polyol, myricetin, multifunctional phase-change microspheres and the like are used as raw materials, foaming is performed, and the flame-retardant phase-change heat-preservation and heat-insulation building material is obtained. The flame-retardant phase-change heat-preservation and heat-insulation building material is excellent in heat-preservation and heat-insulation performance, flame-retardant performance and mechanical performance, has anti-ultraviolet performance and antibacterial and mildew-proof performance, can reduce erosion damage caused by external conditions, and prolongs the service life.

The application discloses an end hexaazido nitrate polyether adhesive and a synthesis method thereof. The method first takes triazido neopentyl alcohol and glycidyl ether nitrate as raw materials, boron trifluoride-ether complex as a catalyst, and obtains triazido neopentyl polyglycidyl ether nitrate alcohol through cation ring-opening polymerization reaction; then takes triazido neopentyl polyglycidyl ether nitrate alcohol and hexamethylene diisocyanate as raw materials, dibutyl tin dilaurylate as a catalyst, and obtains end hexaazido polyglycidyl ether nitrate through addition reaction, namely the end hexaazido nitrate polyether adhesive. The application is mainly used for solid propellants, is used for synthesizing polytriazole elastomers, improves the content and crosslinking density of hard segments, promotes microphase separation of the elastomers, and thus improves mechanical properties.

The invention provides a high-molecular adhesion promoter, a preparation method and conductive metal slurry, and belongs to the technical field of conductive slurry. The structural formula of the high-molecular adhesion promoter is shown in the specification, n ranges from 60 mol% to 85 mol%, x ranges from 3 mol% to 10 mol%, y ranges from 10 mol% to 20 mol%, and z ranges from 1 mol% to 10 mol%. The high-molecular adhesion promoter disclosed by the invention can simultaneously improve the bonding effect of the metal paste and the base material and the crosslinking density in the paste, so that the adhesion of the whole paste is improved, and the result that the adhesion of the conductive silver paste after drying is improved to 2.1 N / mm < 2 > or above is achieved.

The invention discloses a high-strength ultraviolet / moisture dual-curing PUR (Polyurethane) hot melt adhesive as well as a preparation method and a use method thereof. The adhesive is prepared from the following raw materials in parts by weight: 60 to 75 parts of isocyanate-terminated polyurethane prepolymer, 10 to 20 parts of polyurethane acrylate, 10 to 30 parts of reactive diluent, 1 to 5 parts of photoinitiator, 0.1 to 0.5 part of filler, 0.5 to 2 parts of silane coupling agent and 5 to 20 parts of tackifying resin. Wherein the isocyanate-terminated polyurethane prepolymer is obtained through a reaction of dihydric alcohol and isocyanate, the polyurethane acrylate is obtained through a reaction of the isocyanate-terminated polyurethane prepolymer and an acrylate monomer, and the adhesive disclosed by the invention has the dual advantages of rapid positioning in ultraviolet curing and high strength and durability in moisture curing; the adhesive has the advantages of high adhesive strength, good process adaptability, ultrahigh bonding strength, excellent heat resistance and aging resistance, and is especially suitable for assembly line rapid bonding and assembly of precise parts such as electronic components and optical elements.

The invention discloses a microcapsule latent curing accelerator, a preparation method of the microcapsule latent curing accelerator, a TGIC cured polyester powder coating and a preparation method of the TGIC cured polyester powder coating. The microcapsule latent curing accelerator comprises a capsule core and a capsule wall, wherein the capsule core accounts for 50-85% of the total mass of microcapsules, and the capsule wall accounts for 15-50% of the total mass of the microcapsules; the capsule core is at least one curing accelerator selected from imidazole compounds, imidazolium salts, quaternary ammonium salts, organic phosphine or quaternary phosphonium salts; the capsule wall is a cross-linked polymer shell formed by in-situ polymerization of an amino resin prepolymer; and the particle size D50 of the microcapsule is 1-20 microns. The accelerant has the beneficial effects that the storage stability (40 DEG C accelerated storage) of a coating using the accelerant should exceed 60 days while the coating keeps excellent low-temperature curing capacity at 130-160 DEG C, and a final coating film has appearance and comprehensive performance equivalent to those of a traditional high-temperature curing coating.

The application belongs to the technical field of industrial coatings, and discloses a preparation process of self-cleaning FEVE varnish. The preparation process of the self-cleaning FEVE varnish comprises the following steps: (1) preparing a protective latex emulsion; (2) adding a wetting agent and a defoaming agent; (3) adding a composite sol; (4) adding FEVE resin, then adding a curing agent, and preparing the self-cleaning FEVE varnish after aging. The self-cleaning FEVE varnish prepared by the preparation process of the self-cleaning FEVE varnish has excellent adhesion, high weather resistance and good self-cleaning performance, and can be widely applied to building outer walls, transportation equipment, ocean facilities, urban public facilities and the like.

The invention relates to the technical field of insulated cables, in particular to a parallel cluster type overhead XLPE insulated cable and a preparation method thereof.The parallel cluster type overhead XLPE insulated cable comprises a cable core and an insulating layer, and the insulating layer is made of an XLPE insulating material; the XLPE insulating material is prepared from the following raw materials in parts by weight: 90 to 130 parts of polyethylene composite resin, 9 to 13 parts of end-side double-hydrogen-containing silicone oil, 3 to 7 parts of polyvinyl silicone oil, 3 to 6 parts of compatilizer, 0.01 to 0.05 part of platinum catalyst, 4 to 7 parts of vinyl silane coupling agent, 8 to 13 parts of peroxide initiator, 1 to 5 parts of antioxidant, 7 to 12 parts of catalyst and 0.5 to 3 parts of water absorbent. The anti-aging cable has the advantage of improving the anti-aging performance of the insulating layer of the cable.

The present application relates to the technical field of chemical product processing, in particular to a low-gloss polyacrylate resin composition, a preparation method and application thereof, which comprises a modified polyacrylate resin solution, an epoxy-siloxane modifier, a vinyl trimethoxysilane oligomer, an organic metal catalyst, a viscosity regulator and a polymerization inhibitor; the ester bond in the modified polyacrylate resin is fixedly protected by the epoxy-siloxane modifier, and the ability of the epoxy-siloxane modifier is further enhanced by the vinyl trimethoxysilane oligomer, so that the problem that the gloss of the extinction type polyacrylate resin containing a bulky side group is irreversibly increased due to ester bond hydrolysis in a hot and humid environment is solved.

The invention belongs to the technical field of coatings, and particularly relates to a green and environment-friendly coating and a preparation method thereof. Comprising the following steps: (1) modifying a zeolite molecular sieve by adopting an amino silane coupling agent; (2) carrying out heating reaction on the carboxylated carbon nanotube and the modified zeolite molecular sieve, carrying out vacuum filtration, and drying to obtain a carboxylated carbon nanotube modified zeolite molecular sieve; and (3) uniformly mixing the waterborne polyurethane dispersion liquid, the carboxylated carbon nanotube modified zeolite molecular sieve and a coating additive to obtain the green and environment-friendly coating. According to the invention, a coupling agent is utilized to modify a zeolite molecular sieve, then a multi-dimensional enhanced network is constructed through reaction with functionalized carbon nanotubes, and the multi-dimensional enhanced network is added into a waterborne polyurethane matrix as a modifier, so that the path of corrosion factors is prolonged, and the interface bonding force between a filler and resin is enhanced; micro-permeation channels caused by interface gaps are reduced, so that the performance of the waterborne polyurethane coating is improved.

The invention discloses a light conversion material, an eye-protection screen protection film and a preparation method of the eye-protection screen protection film, and relates to the technical field of nano luminescent materials. The inorganic metal oxide or the inorganic non-metal oxide and the quantum dots are connected through a cross-linking material, and the inorganic metal oxide or the inorganic non-metal oxide is selected from nano silicon oxide, nano aluminum oxide, nano zinc oxide, nano zirconium oxide, nano calcium oxide, nano sodium oxide, nano manganese heptoxide or nano chromium trioxide; the particle size of the inorganic metal oxide or the inorganic non-metal oxide is 2-100 nm; the cross-linking material is selected from a silane coupling agent or a bifunctional ligand. The light conversion material and the eye protection screen protection film provided by the invention can prolong the service life of the nano luminescent material and maintain the stability of the light conversion efficiency of the light conversion material after long-term use.

The application provides a biomass-based elastic body which is repairable and recyclable and a preparation method thereof, and the steps are as follows: 1) preparation of maleimide grafted chitosan; 2) mixing maleimide grafted chitosan and furfuryl mercaptan modified vegetable oil polymer in a solvent, pouring the obtained mixed solution to obtain the biomass-based elastic body which is repairable and recyclable. The application selects vegetable oil and chitosan as a flexible matrix and a rigid skeleton respectively, and further introduces reversible D-A cross-linking bonds through structure design to prepare an elastic body material with adjustable topological structure and good mechanical properties. The rigid structure of chitosan guarantees the strength of the material, the fatty chain of vegetable oil makes it have good ductility and toughness, the reversible D-A bond makes the material have good thermal repair function, and the natural properties of raw materials endow the product with recyclable and renewable characteristics.

The application discloses an inorganic silicon modified water-based corrosion and rust prevention paint containing functional polysiloxane as well as a preparation method and application thereof. The paint contains, in parts by weight, 30-60 parts of a water-based hybrid acrylic emulsion, 1-15 parts of functional polysiloxane, 5-25 parts of inorganic silicon-based corrosion inhibitor filler, 10-40 parts of pigment and filler, 1-5 parts of water-based additive, and the balance of water. The functional polysiloxane is amino or silanol / alkoxy functionalized polysiloxane emulsion; and the inorganic silicon-based corrosion inhibitor filler is a combination of calcium ion exchange type silica gel pigment and calcium silicate. The inorganic hybrid emulsion, the functional polysiloxane and the inorganic silicon corrosion inhibitor pigment are compounded to endow the coating with excellent physical shielding property, active corrosion inhibition and surface hydrophobicity, realize fast drying, high hardness, excellent water and salt fog resistance and long-acting corrosion prevention performance, and especially can adapt to the harsh requirements of marine environment for the water-based corrosion prevention paint, which has important significance for the development of the shipbuilding industry.

This invention discloses a supported anti-sulfurization reducing agent and its preparation method, relating to the technical field of rubber additives. A supported anti-sulfurization reducing agent includes an adhesive layer and an inner capsule. The adhesive layer is formed by blending a carrier rubber and a fatty acid salt. The inner capsule includes a core material and an inner capsule wall. The core material is the anti-sulfurization reducing agent, while the inner capsule wall is formed by reacting and curing an amino-modified liquid isoprene rubber and a urea-formaldehyde prepolymer. This application, by using microencapsulation, prepares an anti-sulfurization reducing agent with a double-layered supported structure. This not only effectively improves the problems of poor compatibility and difficult dispersion of pure anti-sulfurization reducing agents in rubber compounds, but also effectively protects the active ingredients, which is beneficial for improving the actual utilization rate of the anti-sulfurization reducing agent, reducing the amount of anti-sulfurization reducing agent added, and thus reducing the production cost of rubber products.

The invention discloses a preparation method of a wear-resistant and stretch-resistant biaxial fiber fabric, belongs to the technical field of fiber fabric processing, and is used for solving the technical problem that the wear resistance and stretch resistance of the biaxial fiber fabric in the prior art need to be further improved. Then weaving, coating the surface, and finally curing and drying to obtain the wear-resistant stretch-resistant biaxial fiber fabric. The modified fiber disclosed by the invention is subjected to surface epoxy grafting modification, so that the wear resistance of the modified fiber is kept, the compatibility with other components is improved, and a wear-resistant basic framework is provided for a fabric; the modified coating agent forms a cross-linked network with the curing agent through the polyester polyol, a high-hardness wear-resistant coating is formed on the surface of the fabric in combination with the reinforcing effect of the modified filler, and the wear-resistant and tensile properties of the fabric are jointly improved through chemical compatibility and structural synergy of the polyester polyol and the curing agent.

The invention provides an epoxy curing agent as well as a preparation method and application thereof. The preparation method of the epoxy curing agent comprises the following steps: carrying out first reaction on a first mixed reaction system containing amino siloxane and a chain extender to obtain an intermediate product of which the main chain contains a-Si-O-Si-bond and the side chain contains amino; performing a second reaction on a second mixed reaction system containing the intermediate product and a cross-linking agent to obtain the epoxy curing agent, wherein the cross-linking agent comprises an acid cross-linking agent. A coating film formed by the epoxy resin coating containing the epoxy curing agent has excellent high temperature resistance and good flexibility.

This application relates to a passivation treatment solution, aluminum alloy components, and a method for preparing the same. The passivation treatment solution comprises a solvent and components dispersed in the solvent at the following concentrations: fluorozirconate 5 g / L–30 g / L, fluorinated silane coupling agent 10 ml / L–50 ml / L, polyphenol complexing agent 1 g / L–8 g / L, and silicate 5 g / L–25 g / L. The passivation treatment solution, through a multi-component synergistic formulation composed of fluorozirconate, fluorinated silane coupling agent, polyphenol complexing agent, and silicate, exhibits different functions and molecular bridging synergistic effects. After passivation treatment of anodized aluminum alloys, the alkaline corrosion resistance of the aluminum alloys can be significantly enhanced.

The application discloses a modified graphene oxide water-based epoxy heavy-duty anticorrosive paint as well as a preparation method and application thereof. The anticorrosive paint comprises the following components in parts by mass: modified graphene oxide 0.1-0.5 parts, AlOOH@K-CNC composite material 0.5-1.5 parts, water-based epoxy resin 80-120 parts and water-based epoxy curing agent 10-30 parts. The modified graphene oxide is modified with arginine on graphene oxide and is covalently modified. The application simultaneously adds graphene oxide and nanocellulose, overcomes the corresponding shortcomings through modification treatment, greatly improves the anticorrosive performance and is suitable for marine environment.

The invention discloses a high-strength acrylic structural adhesive and a preparation method thereof, and belongs to the technical field of structural adhesives. The high-strength acrylic structural adhesive comprises a component A and a component B, the component A comprises an acrylate monomer, a first cross-linking agent, an antioxidant, a polyacrylate elastomer, a polymerization inhibitor, a reducing agent and modified mesoporous silica; the component B comprises an acrylate monomer, a first cross-linking agent, a polyacrylate elastomer, a polymerization inhibitor, an oxidizing agent and modified mesoporous silica; the acrylic ester monomers comprise ethyl methacrylate and lauryl methacrylate; 2, 4, 6-triallylphenol is adopted as the antioxidant; the polyacrylate elastomer is obtained by carrying out composite reaction on 2-acrylamido-2-methyl-1-propane sulfonic acid polymer particles, ethyl acrylate, vanillin methacrylate, an initiator and a second cross-linking agent; the second cross-linking agent is prepared from ethylene glycol dimethacrylate and triallyl phosphite ester.

This invention belongs to the field of fabric technology, specifically relating to a high-strength abrasion-resistant composite fabric and its preparation process. The high-strength abrasion-resistant composite fabric includes a base fabric and an abrasion-resistant layer. The base fabric is made of a blend of polyester and cotton fibers in a mass ratio of 2-3:1. The abrasion-resistant layer comprises the following components by weight: 50-60 parts polyurethane resin; 8-10 parts modified nano-zirconia; 3-5 parts fluorinated silane phenol; 0.6-0.8 parts dispersant; and 40-50 parts organic solvent. The composite fabric provided by this invention includes a base fabric and an abrasion-resistant layer. This invention modifies the abrasion-resistant layer by adding modified nano-zirconia and fluorinated silane phenol, thereby improving the overall performance of the composite fabric and obtaining a high-strength composite fabric with good abrasion resistance, waterproof performance, warmth retention, and antibacterial properties. It is suitable for making functional jacquard fabrics using a jacquard process.

The application discloses a kind of organic silicon synthetic leather and its preparation process, belong to the field of organic silicon synthetic leather.The synthetic leather includes base cloth, which is provided with bottom glue layer, and the bottom glue layer is provided with surface glue layer;Wherein surface glue layer and bottom glue layer are all obtained by vacuum mixing of vinyl silicone oil, modified hydrophobic white carbon black, phenyl vinyl silicone resin, hydrogen-containing silicone oil, inhibitor and catalyst.Specific preparation is first coated to surface glue layer on release paper, heated and cured, then the bottom glue layer is coated on the surface of surface glue layer, the base cloth is laminated with bottom glue layer, heated and cured, and the release paper is removed, to obtain organic silicon leather.The organic silicon synthetic leather has the advantages of wear resistance, folding resistance, tear resistance and the like.

The invention provides an anti-clogging composite drainage network and a preparation method thereof, and relates to the technical field of drainage networks. Comprising a net core and geotechnical cloth fixedly arranged on the two sides of the net core, the net core sequentially comprises an inner core and an outer core from inside to outside, the inner core is glass fiber reinforced HDPE, and the outer core is a polyurea coating; the geotechnical cloth is PP + ES geotechnical cloth. The problems that a net core is poor in compression resistance, low in hydraulic conductivity and low in transverse stretching, and geotechnical cloth is poor in acid and alkali resistance are solved.

This invention relates to a multifunctional bioactive dental bulk filling composite resin and its preparation method. The composite resin comprises an organic resin matrix and an inorganic filler; the organic resin matrix comprises polymerizable resin monomers and a photoinitiator system, the polymerizable resin monomers comprising dimethacrylate monomers and E-POSS; the inorganic filler comprises nMgO and sSiO2 with a silanized surface. The preparation method includes the following steps: preparing nMgO powder using a sol-gel method combined with a gradient calcination process; preparing submicron-sized sSiO2 using the Stöber method and subjecting it to surface silanization treatment to obtain silanized sSiO2; mixing the polymerizable resin monomers, E-POSS, and the photoinitiator system, stirring in the dark until a homogeneous resin matrix is ​​formed; adding the obtained nMgO and silanized sSiO2 to the resin matrix in a specific ratio and mixing and dispersing evenly to obtain an uncured paste-like composite resin.

The invention provides a jujube fruit cracking prevention film agent as well as a preparation method and a use method thereof.The jujube fruit cracking prevention film agent is prepared from the following raw materials in parts by mass: 1-5 parts of a polyvinyl alcohol solution, 1-5 parts of a polyacrylamide solution and 0.5-1 part of a modified oxidized humic acid solution; wherein the polyvinyl alcohol solution is prepared from the following components in parts by mass: 1 to 5 parts of polyvinyl alcohol, 0.1 to 0.5 part of cross-linking agent and 50 to 120 parts of water; the polyacrylamide solution is prepared from the following components in parts by mass: 1 to 5 parts of polyacrylamide, 0.1 to 1 part of hydrophobic monomer and 80 to 150 parts of water; the modified oxidized humic acid solution is prepared from the following components in parts by mass: 1 to 2 parts of modified oxidized humic acid, 0.05 to 0.1 part of calcium salt, 0.05 to 0.1 part of phosphorus salt, 0.05 to 0.1 part of silicon fertilizer, 0.05 to 0.1 part of borax, 0.05 to 0.1 part of growth promoting agent and 30 to 80 parts of water. The jujube fruit cracking prevention film agent can prevent jujube fruit cracking.

The application relates to the technical field of paint, and particularly discloses a preparation method of a high-corrosion-resistance water-based epoxy curing agent. The water-based epoxy curing agent is optimized in the molecular structure to improve the compatibility, water resistance, balance curing rate and pot life of the water-based epoxy curing agent, and to enhance the mechanical property. The water-based epoxy curing agent solves the problem that the corrosion resistance of the water-based epoxy curing agent is still inferior to that of a solvent type system due to the low multi-phase reaction efficiency, the difficulty in completely eliminating the hydrophilic component and the poor film forming compactness.

The invention relates to the technical field of furan resin, in particular to high-strength furan resin as well as a preparation method and application thereof. The high-strength furan resin comprises the following components in parts by weight: 35-60 parts of furfuryl alcohol, 15-25 parts of formaldehyde, 5-10 parts of urea, 1-3 parts of a formaldehyde reducing agent and 3-5 parts of a cross-linking agent. The high-strength furan resin provided by the invention is high-performance furan resin with high mechanical strength, excellent moisture resistance and low free formaldehyde release, and has a wide application prospect in the field of casting. The introduced cross-linking agent can improve the cross-linking density, improve the tensile strength and avoid brittle failure. In addition, carboxyl in molecules of the cross-linking agent can adjust polarity and compatibility of the system, phase separation in storage and use processes is inhibited, and the storage stability of the resin is remarkably improved. The formaldehyde reducing agent introduced by the invention can be subjected to nucleophilic addition reaction with free formaldehyde in a system, so that the formaldehyde content can be efficiently and enduringly reduced, and the production and use environment can be improved.

The invention discloses an ultrathin back-drilled base plate and a preparation method thereof, and a circuit board and a processing method thereof, and the ultrathin back-drilled base plate comprises a structural layer, a first adhesive layer disposed on one side of the structural layer, and a second adhesive layer disposed on one side, opposite to the structural layer, of the first adhesive layer. Wherein the structural layer is made of a composite material containing a first high-heat-resistance polymer and a reinforcing filler; the material of the first adhesive layer comprises high-molecular resin, and the high-molecular resin contains at least one of a second high-heat-resistance polymer and a hot-melt adhesive, wherein the main chain of the second high-heat-resistance polymer contains an aromatic ring and / or a heterocyclic ring; and the material of the second adhesive layer comprises a hot melt adhesive. According to the invention, extremely high physical rigidity and chemical barrier capability can be maintained in circuit board hot pressing and wet processing processes, and the defects of back drilling hole flashing and orifice retreating are effectively inhibited; and the controlled interface stripping force is utilized in the plate stripping stage, so that the integral pure physical tearing of the base plate is realized, the secondary erosion of chemical film stripping liquid is avoided, and the residual glue on the surface of the base plate is eliminated.

The present application relates to the technical field of pressure sensitive adhesive, in particular to a plastic film type low VOC environment-friendly pressure sensitive adhesive product.The plastic film type low VOC environment-friendly pressure sensitive adhesive product is composed of the following raw materials: methyl methacrylate, butyl acrylate, diacetone acrylamide, 2-ethylhexyl acrylate, vinyl trimethoxysilane, hydroxyethyl acrylate, reactive emulsifier, anionic emulsifier, non-ionic emulsifier, ammonium persulfate, sodium bisulfite, adipic acid dihydrazide, sodium bicarbonate, nano calcium carbonate, deionized water and pH regulator.The plastic film type low VOC environment-friendly pressure sensitive adhesive product has excellent holding power, peeling strength, durability and environmental protection.