94results about How to "Improve cohesive strength" patented technology

The invention relates to the technical field of adhesives, in particular to a high-temperature-resistant adhesive, a preparation method thereof and a high-temperature-resistant protective film. The invention provides a high-temperature-resistant adhesive. The high-temperature-resistant adhesive comprises acrylic resin, a cross-linking agent and a solvent, the dosage of the cross-linking agent is 1wt%-2wt% of the acrylic resin; the acrylic resin contains a structural unit as shown in the following formula I: # imgabs0 #; r is selected from alkylene with the carbon number of 1-3. The high-temperature-resistant monomer is introduced into a main body of the acrylic resin, and a boric acid group in the structure of the high-temperature-resistant monomer can be dehydrated under a high-temperature condition to form a boric acid ester structure and generate a cross-linking point, so that the cohesive strength is further improved, the adhesive is endowed with excellent high-temperature resistance, and the stripping force climbing of the adhesive at a high temperature is low.

The invention discloses a high-temperature-resistant adhesive tape and a preparation method thereof, and belongs to the technical field of adhesive tape preparation. The adhesive tape is composed of a composite adhesive and a composite polyester film, and the composite adhesive is composed of hydroxyl polydimethylsiloxane, boric acid, 2, 2-bis [4-(4-aminophenoxy) phenyl] propane and 4, 4-bis (4-aminophenoxy) phenyl] propane. The composite polyester film is prepared from polyethylene glycol terephthalate, 1-allylimidazole, 2-bromobutane, potassium hexafluorophosphate, methacryloyloxyethyl trimethyl ammonium chloride and nano silicon dioxide, and the composite polyester film is prepared from polyethylene glycol terephthalate, 1-allylimidazole, 2-bromobutane, potassium hexafluorophosphate, methacryloyloxyethyl trimethyl ammonium chloride and nano silicon dioxide. The adhesive tape prepared by the method has excellent viscosity, high temperature resistance, aging resistance and antistatic property.

The invention provides a double-sided adhesive tape for pasting a low-surface-energy material and a preparation method of the double-sided adhesive tape. The adhesive tape is of a four-layer structure and comprises an acrylate pressure-sensitive adhesive layer and the like. Through selection of raw materials and design of a macromolecular structure, good wetting and bonding of a low-polarity base material are realized by utilizing an acrylic acid long-chain alkyl ester chain segment, and the problem that a low-surface-energy material is difficult to bond is solved. The adhesive formula used in the invention contains a special chain segment, has strong affinity with a low-polarity base material, and has a good bonding effect; polymerization reaction design is ingenious, and polymer performance is ensured; the monomer combination is reasonable, the compatibility is ensured, the polarity is reduced, an effective solution is provided for bonding of low-surface-energy materials, and the method has a wide application prospect.

The invention relates to an organic silicon adhesive applied to MEMS chip bonding and a preparation method thereof. The organic silicon adhesive comprises the following components in parts by weight: 5%-25% of vinyl silicone oil, 50%-70% of VQM, 8%-20% of hydrogen-containing silicone oil, 0.50%-1.00% of a silane coupling agent, 0.50%-1.00% of a catalyst, 0.10%-0.50% of an inhibitor, 0.5%-2.00% of pigment and 7%-15% of filler. Compared with the prior art, the adhesive can bear relatively high external shear thrust, the stress generated by the adhesive layer is low, the adhesive force is strong, and the requirement of the bottom adhesive property of the MEMS Die is met.

The present invention relates to the technical field of adhesive tapes, and specifically discloses a blue film adhesive tape for new energy vehicle batteries and a preparation method thereof. A blue film adhesive tape for new energy vehicle batteries comprises a three-layer structure, wherein the outer layer is a PET release film with a thickness of 45-55 μm; the middle layer is a UV enhancement layer with a thickness of 50-60 μm; the inner layer is a blue PVC substrate film with a thickness of 45-55 μm; the UV enhancement layer comprises the following raw materials in parts by weight: 100-200 parts of polyacrylate, 30-60 parts of polyester, 20-40 parts of polyurethane, 20-50 parts of ethylene-vinyl acetate copolymer, 10-40 parts of photoreactive composition, 5-10 parts of photocatalyst, 20-40 parts of curing agent, 5-20 parts of filler, 1-3 parts of anti-aging agent, and 1-10 parts of tackifier; the obtained blue film adhesive tape has significant bonding performance, high peel strength and shear strength, and has broad market prospects.

The invention discloses a water-based intermediate coat composition with low-temperature stone impact resistance, water-based intermediate coat prepared from the water-based intermediate coat composition and application of the water-based intermediate coat composition. The water-based intermediate coat composition is prepared from the following components in parts by weight: 4 to 8 parts of water-based polyurethane dispersion A, 8 to 15 parts of water-based polyurethane dispersion B, 2 to 5 parts of methylated amino resin, 5 to 10 parts of mixed etherified amino resin and 0.2 to 0.4 part of phosphate adhesion promoter, wherein the hydroxyl value of the waterborne polyurethane dispersion A is lt; the acid value is 20-35 mgKOH / g, and the number-average molecular weight is gt; the particle size of the resin is 50-100nm, and the pH (Potential of Hydrogen) of the dispersion is 7.0-8.5; the hydroxyl value of the waterborne polyurethane dispersion B is 95-125 mgKOH / g, the particle size of the resin is 30-80 nm, and the pH value of the dispersion is 7.0-9.0.

The invention relates to fireproof and heat-insulating glass and a preparation process thereof, and relates to the field of fireproof and heat-insulating materials, the fireproof and heat-insulating glass comprises a heat-insulating film layer I, a fireproof gel layer I, a glass substrate, a fireproof gel layer II and a heat-insulating film layer II, the fireproof gel layer I and the fireproof gel layer II are prepared by adopting a mixed gel solution, the mixed gel solution is prepared from the following raw materials in parts by mass: 80 to 100 parts of bi-crosslinking gel monomer, 5 to 10 parts of crosslinking agent, 20 to 30 parts of composite flame retardant and 1 to 3 parts of initiator. The preparation process comprises the following steps: preparing a mixed gel solution, preparing the fireproof gel layer I and the fireproof gel layer II on the surface of the glass substrate, hot-pressing and laminating the heat insulation film layer I to the surface of the fireproof gel layer I, and hot-pressing and laminating the heat insulation film layer II to the surface of the fireproof gel layer II to obtain the fireproof heat insulation glass. The fireproof and heat-insulating glass has the effect of improving the interlayer binding force of the fireproof and heat-insulating glass, the stability can be improved, and the fireproof and heat-insulating performance is further improved.

The invention provides a bisphenol curing agent containing a spirobiborate group, vegetable oil-based epoxy resin as well as a preparation method and application of the bisphenol curing agent and the vegetable oil-based epoxy resin, and belongs to the technical field of fine chemical engineering. According to the method designed on the basis of a cross-linked network structure, 4-hydroxyphenylboronic acid and pentaerythritol are subjected to dehydration condensation to prepare spiro borate diphenol in one step, and the spiro borate diphenol is used for improving the structural performance of the epoxy adhesive. According to the plant oil-based epoxy resin, both spiroborate diphenol and bisphenol F contain double-benzene-ring structures, so that the molecular structure rigidity of the epoxy adhesive is improved, the cohesion strength of a contribution structure is improved, meanwhile, a B-O bond has high bond binding energy and associative reversible crosslinking characteristics, the bonding strength and reprocessing performance of the plant oil-based epoxy resin can be improved, and the plant oil-based epoxy resin can be applied to the field of adhesive materials. The plant oil-based epoxy resin can significantly improve the structure of an epoxy adhesive, and the prepared plant oil-based epoxy resin not only has better bonding strength, but also has good degradation performance and reprocessing performance.

The invention provides a liquid optical adhesive, a folding screen protective film and a folding screen, the liquid optical adhesive comprises a component A and a component B, the component A comprises a catalyst, and the component B comprises vinyl polyborosiloxane, a hydrogen-containing cross-linking agent, vinyl-terminated silicone rubber, vinyl silicone resin, a tackifier and an inhibitor; vinyl polyborosiloxane with specific parts is introduced into the component B to be matched with other components, so that the obtained liquid optical cement has a non-bovine characteristic, the cohesion strength of an adhesive film obtained after curing is remarkably improved, and then the liquid optical cement can have excellent ball falling resistance and pen falling resistance and is excellent in impact resistance; meanwhile, the film also has relatively high light transmittance, relatively low haze and excellent adhesion performance, is used for preparing the folding screen protection film, and can ensure that the obtained folding screen protection film can effectively protect a folding screen.

The invention discloses wear-resistant anti-aging organic silicon modified asphalt for a fog sealing layer and a preparation method of the wear-resistant anti-aging organic silicon modified asphalt, and relates to the technical field of road engineering. The wear-resistant anti-aging organic silicon modified asphalt comprises the following raw materials in parts by weight: 100 parts of petroleum asphalt, 20-25 parts of FCC oil slurry, 40-50 parts of an organic silicon polymer resin composition, 6-12 parts of modified graphene oxide, 3-6 parts of an initiator, 10-15 parts of an organic stabilizer, 4-6 parts of a suspending agent and 1-2 parts of an ultraviolet light absorber, the prepared organic silicon modified asphalt can improve the regeneration reduction and infiltration capacity of a fog sealing layer material, increase the adhesive force and wear resistance of a protective film and prolong the service life of the fog sealing layer material.

The invention relates to the field of sodium-ion battery adhesives, in particular to a sodium-ion battery hard carbon negative electrode two-component acrylate water-based adhesive and a preparation method and application of the sodium-ion battery hard carbon negative electrode two-component acrylate water-based adhesive. The invention relates to a sodium ion battery hard carbon negative electrode two-component acrylate aqueous adhesive, which is prepared from the following raw materials in parts by mass: 40 to 70 parts of first acrylic polymer and 30 to 60 parts of second acrylic polymer. According to the preparation method of the sodium-ion battery hard carbon negative electrode two-component acrylate waterborne adhesive, through the specific combination of the first acrylic polymer and the second acrylic polymer and the specific preparation process, the obtained adhesive has excellent dispersing capacity, high cohesive strength and excellent flexibility. The adhesive can effectively solve the problem of single performance of the existing adhesive, improves the bonding strength and softness of a hard carbon negative electrode material and an electrode plate, improves the first coulombic efficiency, reduces the impedance, and further improves the performance and stability of the electrode. Meanwhile, the preparation method is simple and easy to implement and suitable for large-scale production.

The invention discloses a high-temperature-resistant high-peel-strength pressure-sensitive adhesive, an aluminum foil adhesive tape and a preparation method. The preparation method of the high-temperature-resistant high-peel-strength pressure-sensitive adhesive comprises the following steps: preparing raw rubber from the following components in parts by weight: 5-15 parts of isopropanol, 200-220 parts of ethyl acetate, 120-140 parts of 2-ethylhexyl acrylate, 150-160 parts of n-butyl acrylate, 4-8 parts of hydroxyethyl acrylate, 10-15 parts of acrylic acid, 4-8 parts of beta-carboxyethyl acrylate and 0.5-1.5 parts of a peroxide initiator by adopting a method of solvent polymerization and step-by-step addition; the finished product glue comprises 90-110 parts of raw glue, 30-50 parts of tackifying resin, 10-30 parts of ethyl acetate and 0.5-1.0 part of a curing agent, the raw materials are weighed and uniformly stirred in a glue preparation kettle, the finished product glue is prepared, and the adhesive is good in high temperature resistance and also has excellent initial adhesion, peel strength and holding power. The aluminum foil adhesive tape prepared from the high-temperature-resistant high-peel-strength pressure-sensitive adhesive is high in tensile strength, strong in adhesive force, good in water resistance and corrosion resistance and good in high-temperature resistance, and can meet the application requirements of special occasions.

The invention belongs to the technical field of high polymer materials, and particularly relates to organic silicon modified polyurethane polystyrene foam as well as a preparation method and application thereof. The polystyrene foam comprises a component A and a component B, the component A is prepared from 40 to 60 parts of polyethylene oxide polyol, 25 to 35 parts of cashew nut shell oil polyol, 15 to 25 parts of castor oil modified polyol, 5 to 10 parts of modified resin A, 18 to 22 parts of flame retardant filler, 0.5 to 1.5 parts of foam stabilizer, 0.1 to 0.2 part of catalyst and 0.4 to 0.9 part of pure water; the modified resin A is organic silicon modified resin which contains active amido and has alkoxy at the tail end; and the component B comprises the following components in parts by weight: 75-85 parts of polymerized MDI and 15-25 parts of prepolymer A. According to the invention, an organic silicon chain segment is connected into a polyurethane network in a chemical bond manner, so that high tensile strength and high bonding strength are maintained while the elongation at break is improved, and the technical problem that the performance of the polyurethane polystyrene foam is difficult to consider at the same time is solved.

The present application relates to the technical field of high molecular antifogging coating, and particularly relates to a supermolecular coated shed film antifogging coating solution, a preparation method and application thereof, wherein acrylic acid, acrylamidoalkyl sulfonic acid, hydroxyalkyl acrylate and double-ene crosslinking monomer are used for tetra-copolymerization to construct a supermolecular matrix with carboxyl, sulfonic acid group, hydroxyl side group and crosslinking network, and a spandex antifogging agent is introduced in situ in the matrix, hydrogen bond and hydrophobic association synergistic effect between the side group functional groups and the spandex molecules are used to realize supermolecular coating, and then pH adjustment and functional additive compounding are performed to obtain the coating solution. The present application solves the problems of easy migration and precipitation of the traditional antifogging agent, coating brittleness, short effective period, and the obtained coating has comprehensive performances of long-acting antifogging, high light transmission, strong adhesion, flexible and bending-resistant, water-resistant and aging-resistant, and room temperature rapid curing, and is suitable for antifogging treatment of various agricultural shed films and greenhouse transparent materials.

The present application relates to the field of tape application, more specifically, it relates to an acrylic foam tape and a preparation method thereof, and specifically discloses an acrylic foam tape and a preparation method thereof. The acrylic foam tape comprises an acrylic foam substrate and an acrylic pressure-sensitive adhesive coated on one side or both sides of the acrylic foam substrate; the preparation method thereof is as follows: coating the acrylic pressure-sensitive adhesive on one side or both sides of the acrylic foam substrate, covering the side of the acrylic pressure-sensitive adhesive away from the acrylic foam substrate with a release film, and heating the acrylic pressure-sensitive adhesive in an oven at 80 to 110°C for 4 to 6 hours to prepare the acrylic foam tape. The acrylic foam tape of the present application can be used in different mechanical parts, mobile phone accessories, and computer electronic products. It has the advantages of reducing the residual pressure-sensitive adhesive on the electronic product after peeling off the acrylic foam tape, so that the bonding strength between the newly replaced parts and the electronic product is not easily affected.

The present invention relates to the technical field of tackifying adhesive films, and in particular to an tackifying adhesive film, which comprises a substrate layer and a UV tackifying adhesive layer coated on the substrate layer. The UV tackifying adhesive layer is prepared by using a modified polyester resin obtained by graft polymerization of a terminal hydroxyl polyester resin, butyl methacrylate and isocyanoethyl methacrylate as a main resin, and mixing with a tackifying resin and a light curing agent, etc., and has high cohesive strength and good PET substrate adhesion. Before the UV tackifying reaction, the initial peeling force will not increase significantly with the extension of the placement time, so that it can be easily removed, and the removal of the tape will not cause damage to the adhered object and pollution such as residual adhesive. After the UV tackifying reaction, the modified polyester resin can improve the bonding strength between the tape and the adhered object.

This invention belongs to the field of industrial UV inkjet printing consumables technology, specifically relating to a UV white inkjet ink, its preparation method, and its application. The UV white inkjet ink contains aliphatic polyurethane acrylate, silane-modified epoxy polyester, reactive diluent monomer, photoinitiator, adhesion promoter, white pigment, and optional additives. The silane-modified epoxy polyester is prepared by the following method: esterification of a diol compound with itaconic acid, followed by a mercapto-olefin click reaction of the resulting unsaturated polyester polyol with mercaptosilane, and then a condensation reaction of the resulting silane-modified polyester polyol with halopropylene oxide to obtain the silane-modified epoxy polyester. The UV white inkjet ink provided by this invention has high adhesion to the substrate and is not easily peeled off after handling friction and outdoor exposure.

The present application relates to the technical field of adhesive tape, in particular to the field of IPC B65H35, further to a high-temperature-resistant cutting adhesive tape and a preparation method thereof.From top to bottom, the high-temperature-resistant cutting adhesive tape comprises a protective layer, an adhesive layer and a substrate layer in sequence.The adhesive of the adhesive layer comprises the following raw materials in parts by mass: 70-90 parts of prepolymer, 20-50 parts of active diluent, 3-10 parts of photoinitiator, 1-4 parts of antioxidant and 3-6 parts of silane coupling agent.The present application selects to introduce bisphenol A epoxy acrylate and phenolic epoxy acrylate, and selects isobornyl acrylate and dipropylene glycol diacrylate to be used as the active diluent together, so that the cross-linking degree of the adhesive system is high, the system has a suitable curing shrinkage, the cohesive strength of the system is large, the high-temperature-resistant cutting adhesive tape has good bonding performance while the high-temperature-resistant performance is improved, and the prepared high-temperature-resistant cutting adhesive tape has excellent bonding performance and high-temperature-resistant performance.

The invention provides a reactive polyurethane hot melt adhesive for laminating and compounding a low-surface-energy material and a preparation method of the reactive polyurethane hot melt adhesive, and relates to the technical field of polyurethane hot melt adhesives. Polyhydroxyl groups of the alkyl glycoside enable the alkyl glycoside to have good compatibility with polyether polyol and polyester polyol, and the polyhydroxyl groups react with isocyanate to form a certain degree of crosslinking, so that polyurethane molecules have higher cohesion strength; meanwhile, a long alkyl chain of alkyl glycoside is suspended beside a polyurethane main chain, and the polarity of the long alkyl chain is very low, so that the long alkyl chain has very good wettability on a low-surface-energy base material. Therefore, the polyurethane hot melt adhesive prepared by the invention can effectively infiltrate a base material in the actual use curing process of lamination and compounding of a low-surface-energy material, the bonding strength is not influenced by the low surface energy of the base material, and the polyurethane hot melt adhesive has relatively high initial bonding strength and relatively high final bonding strength.

The invention discloses a water-based polyurethane dispersion containing a heterocyclic group side chain and having an excellent anti-corrosion function and a preparation method of the water-based polyurethane dispersion. The key technology is that a benzothiazole group is introduced into a side chain structure of a waterborne polyurethane molecule to form a benzothiazole group side chain which is uniformly distributed and can rotate freely, and the benzothiazole group side chain can be oriented on the surface of a metal substrate and form tight adsorption. Besides, a component with a linear symmetric annular skeleton structure is selected to reinforce the cohesive strength of the waterborne polyurethane, a proper cross-linking agent and a synthesis process thereof are determined, and when the density of a cross-linking point is in a range of 2.0-2.6 * 10 <-4 > mol / g, the water resistance, the heat resistance and the mechanical strength of the obtained waterborne polyurethane dispersion are all enhanced, and the water resistance, the heat resistance and the mechanical strength of the waterborne polyurethane dispersion are improved. And the characteristics cooperate with the corrosion inhibition effect of the benzothiazole side chain group, so that the corrosion resistance of the waterborne polyurethane coating film is further improved. The waterborne polyurethane resin synthesized by the invention can be used as a film-forming polymer for preparing waterborne anticorrosive paint with excellent performance.

This invention relates to the field of insulating materials for porous copper foil preparation, and particularly to an insulating material for porous copper foil preparation and its preparation method, as well as a method for preparing porous copper foil. The preparation method includes the following steps: perforating a cathode plate to obtain a cathode plate with multiple blind holes; filling the blind holes with an insulating material for porous copper foil preparation, and curing it to obtain a pretreated cathode plate; the raw materials for the insulating material are: resin, reactive diluent, thixotropic agent, leveling agent, polymerization inhibitor, and photoinitiator. The pretreated cathode plate is used as the cathode and placed in an electrolyte for electrodeposition to obtain porous copper foil. When preparing porous copper foil with the insulating material, the filling material in the blind holes can withstand more than 80 electroplating cycles without peeling off, indicating that the insulating material for porous copper foil preparation possesses excellent adhesion and electrolyte environment durability, enabling a single-filled cathode to support stable electrodeposition over an ultra-long period, significantly extending its effective service life.

The invention discloses a papermaking dry strength agent preparation method, which comprises: S1, dissolving chitosan in an acidic aqueous solution to form a chitosan glue solution, and removing oxygen; s2, dropwise adding a high-concentration acrylamide solution, a water-phase monomer mixed solution and an initiator solution for graft copolymerization to obtain a branched prepolymer; s3, a cross-linking agent is added for a cross-linking reaction, and a micro-cross-linked structure is formed; primary amino groups on a chitosan chain are terminated, and branched amphoteric chitosan-polyacrylamide dry strength agent mother liquor is obtained; s4, carrying out composite dispersion on the composite material and a nanocellulose material, and diluting to obtain a diluent; and S5, after a paper machine slushing pump and before a pressurized screen, firstly adding an anionic garbage capturing agent for pre-flocculation, then continuously feeding the diluent, and stirring to obtain the product. According to the papermaking dry strength agent prepared by the preparation method disclosed by the invention, the interface bonding strength of the papermaking dry strength agent to fibers and the adaptability and use efficiency of the papermaking dry strength agent in a complex wet end environment are remarkably improved, and the requirements of the modern papermaking industry on high-performance and high-stability dry strength agents can be met.

The invention discloses an anti-residue PE protective film and a preparation method and application thereof. The anti-residue PE protective film comprises a PE original film; an adhesive layer is arranged on the upper surface of the PE original film; wherein the adhesive layer is prepared by coating a PE original film subjected to surface treatment with an adhesive, and the adhesive comprises the following raw materials in parts by weight: 60-100 parts of high molecular weight polyisobutene, 10-50 parts of methyl vinyl silicone rubber, 10-50 parts of low molecular weight polyisobutene, 30-70 parts of a plasticizer and 1-5 parts of an antioxidant; wherein the plasticizer is a compound of naphthenic base oil and chain alkyl base oil. According to the anti-residue PE protective film as well as the preparation method and the application thereof, the surface roughness of the PE original film is increased by performing surface treatment on the PE original film, the adsorption capacity of the PE original film and an adhesive is further improved, and the formula of the adhesive is optimally designed, so that the adhesive layer and the PE original film have better adaptability and proper peel strength; the residue resistance of the PE protective film is improved.

The invention relates to a preparation method of a high-speed mouthpiece adhesive for PET (polyethylene terephthalate) tipping paper, which is mainly prepared by adding EVA (ethylene-vinyl acetate) emulsion, polyvinyl alcohol, a plasticizer, a wetting agent, a defoaming agent, a pH (potential of hydrogen) regulator, a bactericide and the like into prefabricated acrylic emulsion. The preparation method is characterized in that the prefabricated acrylic emulsion has a high solid content of 65-70%, and is prepared by suspension polymerization of a soft-segment acrylate monomer, a hard-segment acrylate monomer, a crosslinking monomer, abietate and a reactive emulsifier with carbon-carbon double bonds; the mass ratio of the prefabricated acrylic emulsion to the EVA emulsion to the polyvinyl alcohol to the plasticizer to the wetting agent to the defoaming agent to the pH value regulator to the bactericide is (20-30) to (55-65) to (5-10) to (3-5) to (0.1-0.5) to (0.1-0.5) to (0.1-0.5) to 0.1. The high-speed mouthpiece adhesive for the PET tipping paper can meet the requirements of the high-speed mouthpiece adhesive for the PET tipping paper on the bonding force, the cohesive strength and the bonding stability.

The invention belongs to the field of adhesives, and discloses a UV curing pressure-sensitive adhesive for adhesion with low surface energy as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing an acrylate soft monomer, a hard monomer, a functional monomer, organosilicone modified acrylate, polyethylene glycol modified acrylate, a photoinitiator, a chain transfer agent, a free radical thermal initiator, a cross-linking agent and an organic solvent to form a mixed solution, heating to 65-90 DEG C, carrying out a free radical polymerization reaction, and carrying out a heat preservation reaction at 75-90 DEG C to obtain the photoinitiator. And then carrying out reduced pressure distillation at the temperature of 120-150 DEG C to obtain the UV curing pressure-sensitive adhesive for adhesion with low surface energy. And further coating the hot-melt pressure-sensitive adhesive on a film substrate at 100-140 DEG C, and irradiating with ultraviolet light to obtain a hot-melt pressure-sensitive adhesive product. On the basis of retaining the advantages of the UV curing technology, by optimizing the molecular structure of the pressure-sensitive adhesive, the adhesion performance of the pressure-sensitive adhesive on a low-surface-energy material is remarkably improved, the overall performance of the UV pressure-sensitive adhesive is improved, and the application range of the UV pressure-sensitive adhesive is widened.

The invention relates to the technical field of film materials, in particular to an ultraviolet-proof barrier coating film and a manufacturing method thereof.The ultraviolet-proof barrier coating film comprises a polyethylene glycol terephthalate base material layer, an anchoring layer and an ultraviolet barrier layer, the anchoring layer and the ultraviolet barrier layer are sequentially stacked on the surface of one side of the base material layer, and the anchoring layer is a coating formed by curing a main film forming substrate; the ultraviolet blocking layer is a composite coating containing polyurethane acrylate resin, a photoinitiator, an ultraviolet light absorber, nano zinc oxide and nano montmorillonite. According to the invention, through optimized chemical composition and process parameters, firm interface bonding between layers and a compact network structure are realized, so that a high initial ultraviolet protection coefficient and ultraviolet aging resistance durability are synergistically obtained.

This invention relates to the field of masking adhesive technology, specifically to an anti-residue masking adhesive and its preparation method, solving the problems of insufficient elongation at break, insufficient adhesion, and easy residue formation after curing due to peeling difficulties in existing masking adhesives. The masking adhesive is based on trifluoromethylphenoxyphenyl ether-carbazole polyurethane. The preparation of trifluoromethylphenoxyphenyl ether-carbazole polyurethane involves first synthesizing diaminocarbazole-trifluoromethylphenoxyphenyl ether, which is then reacted with castor oil and isophorone diisocyanate as a chain extender. Castor oil acts as a soft segment, forming a continuous phase that provides deformation capability to the polymer. The conjugated rigid structure of the carbazole group and trifluoromethyl group acts as a hard segment, providing strength and adhesion. The synergistic effect of the hard and soft segments regulates the peel strength, improving the durability and practicality of the product.

The invention relates to the field of anticorrosive paint, in particular to hyperbranched epoxy resin anticorrosive paint and a preparation method thereof. The coating is a two-component system, wherein a component A comprises an epoxy resin main body, 5-20 parts of a hydroxyl-terminated hyperbranched polyester modifier, a flaky filler, an anti-rust pigment, a reactive diluent and an auxiliary agent; the algebra of the hyperbranched polyester is G2-G4, and the hyperbranched polyester is prepared by melt polycondensation of trimethylolpropane and 2, 2-dimethylolpropionic acid; and the component B is a polyamide curing agent. The preparation method comprises the following steps: synthesizing hyperbranched polyester; pre-mixing the component A with epoxy resin, grinding and dispersing with filler and auxiliaries, and mixing paint to obtain a component A; mixing a curing agent with a coupling agent to obtain a component B; by utilizing the unique structure of the hyperbranched polyester, the epoxy coating is obviously toughened on the premise of not losing the hardness, the viscosity of the system is reduced, the constructability and the filler dispersity are improved, and finally the high-performance coating with impact resistance, strong adhesion and long-acting corrosion resistance is obtained.

This invention discloses a hot melt adhesive for high-temperature protective clothing and its preparation method, comprising the following raw materials: Fischer-Tropsch wax, styrene-isoprene-styrene block copolymer with 0% diblock content, styrene-isoprene-styrene block copolymer with 20-30% diblock content, styrene-isoprene-styrene block copolymer with 40-50% diblock content, rosin resin, petroleum resin, ethylene-vinyl acetate copolymer, and antioxidant. This hot melt adhesive requires no toxic solvents, possesses both heat resistance and water resistance, and is suitable for high-temperature protective clothing. The preparation method of this hot melt adhesive involves heating and mixing polymer materials without adding any solvents or toxic substances during the preparation process, reducing the risk of toluene poisoning, completely solving the problems of solvent evaporation and recovery, and, more importantly, eliminating safety hazards in the storage and use of organic chemicals, achieving environmentally friendly, safe, and efficient production.

The invention provides low-odor carpet anti-skid glue which comprises an anti-skid layer pressed on the bottom surface of a carpet, and the surface of the anti-skid layer is uniformly concavely and convexly arranged; the colloid of the antiskid layer comprises the following raw materials in parts by weight: 20-40 parts of a main body rubber material, 10-20 parts of a special particle size filler, 1-5 parts of a tackifying softener, 1-5 parts of an anti-aging agent, 5-10 parts of super wear-resistant carbon black, 5-10 parts of white carbon black, 1-5 parts of a homogenizing agent, 5-10 parts of an additive and 25-40 parts of water; by adopting the main body rubber material, the material is environment-friendly, non-toxic, high in wear resistance and better in anti-skid effect, and the environment-friendly anti-skid rubber is adhered to the surface of a carpet, so that the service life of the carpet is prolonged, and the use safety and comfort of the carpet are improved.