15results about How to "Good initial adhesion" patented technology

The present invention relates to the technical field of pressure-sensitive adhesives, and in particular to a flame-retardant pressure-sensitive adhesive, a preparation method thereof, and a pressure-sensitive adhesive tape. The flame-retardant pressure-sensitive adhesive comprises 90 to 99 parts of a modified acrylic resin, 1 to 10 parts of a cross-linking agent, and 0.1 to 2 parts of a first photoinitiator; the modified acrylic resin comprises 80 to 95 parts of an acrylic monomer, 5 to 20 parts of a phosphorus-containing acrylate monomer, 0.01 to 2 parts of a chain transfer agent, and 0.1 to 2 parts of a second photoinitiator; in the acrylic monomer, long-chain acrylates with carbon numbers of 15 to 22 account for 2% to 10%; the phosphorus-containing acrylate monomer comprises at least one of diethyl methyl phosphonate of methacrylate, diethyl methyl phosphonate of acrylate, diethyl ethyl phosphonate of methacrylate, and diethyl ethyl phosphonate of acrylate. The present invention adopts a phosphorus-containing acrylate monomer to be grafted onto an acrylic resin, and regulates the main composition of the acrylic resin, thereby improving the flame retardant properties and the bonding properties of the pressure-sensitive adhesive.

The present invention belongs to the technical field of polyurethane acrylate, and specifically relates to a polyurethane acrylate for UV light-curing adhesive, and a preparation method and application thereof. The polyurethane acrylate for UV light-curing adhesive described in the present invention is made of the following raw materials: 30-80 parts of unsaturated polyester polyol, 24-32 parts of isocyanate intermediate, and 2-6 parts of hydroxy acrylate; the unsaturated polyester polyol is prepared using unsaturated small molecule dibasic acid, saturated small molecule dibasic acid, and small molecule diol as raw materials; the isocyanate intermediate is prepared by reacting isocyanate monomer with polyol. The polyurethane acrylate for UV light-curing adhesive of the present invention is applied to the preparation of UV light-curing polyurethane acrylate adhesive, which improves the ability of UV light-curing adhesive to resist high temperature and high humidity, and improves its service life; the present invention also provides its preparation method.

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 relates to the technical field of C09J157 / 00, and the adhesive at least comprises the following components in parts by weight: 20-40 parts of a block copolymer, 30-50 parts of tackifying resin, 0.1-1 part of an antioxidant and 20-40 parts of rubber oil, and is designed aiming at a high-density polyethylene material, and the adhesive has the characteristics of excellent adhesive property and easy damage. The defects of an existing product in the aspects of weather resistance, adhesion and destructiveness are overcome, and the method is very important for improving the overall safety and convenience of express packaging.

The invention relates to the technical field of pressure-sensitive adhesives, in particular to a conductive copper foil single-sided adhesive tape with high initial adhesion and high stripping force and a preparation method thereof. The adhesive tape comprises a copper foil layer, a conductive adhesive layer is bonded on the lower surface of the copper foil layer, and a release film layer is bonded on the lower surface of the conductive adhesive layer. The high-performance glue is developed, the branched nickel powder is used for improving the conductivity of the adhesive tape, the dosage of the tackifying resin is adjusted, the conductive copper foil single-sided adhesive with high initial adhesion, high stripping force and certain aging resistance is obtained, and the conductive copper foil single-sided adhesive is remarkable in high-temperature and high-humidity resistance, long in service life, high in adhesion performance and sufficient in conductivity.

The invention discloses a surface protection film of a prismatic lens and a preparation method of the surface protection film, and belongs to the technical field of protection films. The special hydrogenated styrene copolymer, the tackifying resin and the monomer resin are compounded, so that the adhesive has good wettability and initial adhesion force on the prismatic lens; metallocene catalyzed polypropylene and a cycloolefin copolymer are added into the core layer to be compounded, interface light reflection loss is effectively reduced, then an antistatic composition composed of a polyether amide copolymer, ethamine oxide and glycerol monostearate is added, and a certain antistatic effect is achieved; a composite light stabilizer is also added, so that a dual-protection system is constructed, and the aging resistance is improved; on the whole, through the structural design of the back unrolling layer, the core layer and the viscous layer and the optimization of the synergistic effect of the preparation raw materials and the formula, the prismatic lens surface protection film which is excellent in initial viscosity, low in unrolling force, slow in viscous force increase, antistatic, aging-resistant, optically matched and excellent in comprehensive performance can be prepared, and the prismatic lens surface protection film has a good industrial application prospect.

The invention relates to the technical field of adhesive tapes, and particularly discloses a preparation method of a high-temperature-resistant anti-degumming environment-friendly degradable adhesive tape, according to the scheme of the invention, under the combined action of a tackifier and acrylic acid, a pressure-sensitive adhesive can show higher heat resistance, so that the adhesive tape is difficult to have a degumming phenomenon after being influenced by a high temperature, and the adhesive tape can be used for preparing a high-temperature-resistant anti-degumming environment-friendly degradable adhesive tape. The adhesive tape provided by the invention overcomes the defect of poor heat resistance of the adhesive tape in the prior art, also gives consideration to the balance between initial adhesion and permanent adhesion, improves the adhesive property of the adhesive tape, and is beneficial to the practical application of the adhesive tape.

The invention relates to the field of adhesive materials, and discloses a preparation method of an anti-aging acrylic pressure-sensitive adhesive protective film, the pressure-sensitive adhesive protective film comprises a base material and a photocuring mixture, and the photocuring mixture comprises an acrylate prepolymer, modified aluminum hydroxide and the like; the acrylate prepolymer comprises 2-ethylhexyl acrylate, methyl methacrylate, acrylic acid, modified hydroxyethyl acrylate, isocyano ethyl acrylate and the like; the modified hydroxyethyl acrylate is prepared by grafting a component I, hydroxyethyl acrylate and isophorone diisocyanate, and the component I is prepared by reacting dibutyl phosphate with glycidyl neodecanoate; octenyl succinic anhydride and 1, 1, 3, 3-tetramethyldisiloxane react and then are grafted with aluminum hydroxide to prepare the modified aluminum hydroxide, the acrylate prepolymer and the modified aluminum hydroxide are added, so that the pressure-sensitive adhesive is endowed with excellent adhesion, high temperature resistance and flame retardance, and the protective film is relatively good in high-temperature aging resistance and damp-heat aging resistance.

The invention discloses a fluorescent polyolefin adhesive as well as a preparation method and application thereof, and relates to the technical field of high polymer materials and adhesives. The fluorescent polyolefin adhesive comprises polyolefin elastomer grafted allyl alcohol glycidyl ether, hydrophobic group substituted binary acid, hydrogenated hydrocarbon resin, an AIE fluorescent material and a transesterification catalyst. Through an integrated molecular design and a simple preparation process, the self-healing performance, the fluorescent tracing performance, the corrosion resistance and the high bonding performance are efficiently integrated in a single material system, complex multi-step processing or post-processing is avoided, and the feasibility requirements of industrial production and application are met. The adhesive material can fundamentally change the traditional mode of'silent failure 'of an adhesive joint structure, strides towards a new normal form of'intelligent sensing, self-repairing and long-acting protection', and has great application value in the fields of new energy automobile battery sealing, ocean engineering protection, precise electronic packaging, high-end intelligent equipment manufacturing and the like.

The invention discloses a lignin modified acrylate adhesive for a PVC (polyvinyl chloride) floor and a preparation method of the lignin modified acrylate adhesive, and belongs to the technical field of high polymer materials and adhesives. The adhesive has a core-shell structure and is prepared from the following raw materials: lignin, a mixed monomer, metal ions or a complex thereof and a composite surfactant, wherein the lignin accounts for 1-10 parts by mass; the mixed monomer comprises the following components in parts by weight: 1-10 parts of 2-hydroxyethyl acrylate, 1-10 parts of acrylic acid, 1-10 parts of ethyl acrylate and 60-96 parts of butyl acrylate; in the metal ions or complexes thereof, the metal ions account for 0.05-2% of the total mass of the mixed monomer; the composite surfactant accounts for 1-5% of the total mass of the raw materials and the solvent. The adhesive has high initial adhesion and high cohesive strength, and is suitable for environment-friendly adhesion of a PVC floor and a cement base surface; meanwhile, the preparation is simple, the use and residue of the traditional persulfate initiator are completely avoided, and the method is green and environment-friendly.

The application belongs to the technical field of organic silicone adhesive, and discloses a single-component organic silicone hot bonding adhesive capable of being cured in segments, and a preparation method and application thereof. The preparation method is as follows: first, end-vinyl silicone oil, hexamethyl disilazane and fumed white carbon black are mixed, kneaded and ground to obtain a first base material; then, methyl MQ silicone resin, methyl-vinyl silicone rubber, hydrogen-containing silicone oil, inhibitor and diluent are mixed and dispersed to obtain a second base material; finally, tackifier and latent platinum catalyst are added. The single-component organic silicone hot bonding adhesive prepared by the application forms a hot bonding adhesive prepreg after initial curing, and has extremely low peeling force at normal temperature, is easy to peel off from a release film during use, and the adhesive surface is still flat and undamaged when the adhesive surface is pressed against the bonding surface. After the prepreg is hot-pressed during use, the cross-linking is complete, the bonding with the base material is tight, the peeling force is high, and the high strength required for long-term use can be achieved.

The invention discloses a hot melt adhesive composition, a polyurethane edge sealing adhesive and a preparation method thereof.The hot melt adhesive composition comprises a polyurethane hot melt adhesive A, a polyurethane hot melt adhesive B and a polyurethane hot melt adhesive C. The polyurethane hot melt adhesive A, the polyurethane hot melt adhesive B and the polyurethane hot melt adhesive C are combined through different types of polyurethane hot melt adhesives, the excellent initial adhesion effect can be achieved, and the hot melt adhesive composition is high in curing speed, good in weather resistance and excellent in comprehensive performance; the method can be used for polyurethane edge sealing glue, is very suitable for automatic production of edge sealing of modern furniture, and has a very good market prospect.

This invention discloses a low-temperature instant crosslinking rubber-type cold-resistant polyethylene protective film and its preparation method, belonging to the field of protective film technology. The protective film is prepared by coating a polyethylene base film with a two-component rubber pressure-sensitive adhesive and then crosslinking it at low temperature. Component A is a ternary compound rubber phase, and component B is an aliphatic triisocyanate crosslinking phase, combined with synergistic additives to achieve rapid low-temperature catalytic crosslinking. The preparation process employs a two-component synchronous delivery, static mixing, slot coating, and low-temperature curing at 70-90℃, completing crosslinking in 3-5 minutes, significantly reducing energy consumption. The resulting protective film exhibits excellent initial tack and holding power, shows no brittleness or residue at -30℃, has a gel content of over 91%, and demonstrates excellent low-temperature protective performance. This invention's process is safe, efficient, and suitable for industrial production, meeting the requirements for product surface protection in low-temperature environments.

The invention discloses a high-viscosity water-resistant polyacrylate emulsion pressure-sensitive adhesive as well as a preparation method and application thereof, and belongs to the technical field of functional water-based polymer materials. The preparation method comprises the following steps: preparing a polyacrylate emulsion from an acrylate monomer and an acrylate functional monomer through emulsion polymerization, carrying out a chemical grafting reaction on a hydroxyl-containing acrylate functional monomer and a phenolic compound monomer in a molecular structure of the polyacrylate emulsion, and introducing a fluorine-containing polyphenol functional component with better bonding capacity. The high-viscosity water-resistant polyacrylate emulsion pressure-sensitive adhesive effectively improves the initial adhesion, adhesive strength and cohesion of a traditional polyacrylate emulsion pressure-sensitive adhesive, has excellent initial adhesion, peel strength, hydrophobicity, water resistance and the like, and can be applied to surface adhesion of metal materials, inorganic non-metal materials and high polymer materials in a humid environment.

The application discloses a kind of equal proportion two-component dealcoholization type silicone rubber, comprising A and B two components: wherein the mixed volume ratio of A component and B component is 1:1;The component B includes tackifying coupling agent-1 and tackifying coupling agent-2, tackifying coupling agent-2 is the hydrolysis product with multiple urea groups, there are multiple active urea group functional groups and many hydrolysable alkoxyl (methoxyl) in molecular structure, it is a kind of active higher tackifying coupling agent, can form in short time with excellent bonding effect, that is, it has better initial tack, it is a modification and promotion to existing coupling agent.Urea group and the dual reactivity of alkoxyl make it can improve the combination, bonding and compatibility between two by bidirectional chemical reaction with inorganic material (glass, metal, filler) and organic polymer (thermosetting resin, plastic, elastomer), to further improve the mechanical properties of resin-based composite or improve the bonding strength of resin coating and other properties.