8results about How to "Strong initial adhesion" patented technology

The invention relates to a low-temperature-resistant anti-skid adhesive material and a preparation method and application thereof, the anti-skid adhesive material comprises a modified HDPE base material layer and an acrylate pressure-sensitive adhesive layer coated on the base material layer, the base material layer comprises HDPE resin, POE elastomer, methyl vinyl silicone rubber, a compatilizer and a peroxide cross-linking agent; the adhesive layer comprises a soft monomer, a hard monomer, a macromonomer containing a polybutadiene chain segment, a functional monomer, a cold-resistant plasticizer, an initiator and a cross-linking agent. The anti-skid adhesive material provided by the invention can still keep high adhesion at a low temperature of-40 DEG C, and has good base material performance and excellent anti-skid performance.

The present invention relates to a high-adhesion tape for cotton coating and a preparation method thereof, and belongs to the technical field of pressure-sensitive adhesives. The tape is composed of a base film, a high-viscosity pressure-sensitive adhesive adhered to the base film, and a release film attached to the surface, and the high-viscosity pressure-sensitive adhesive includes, by weight, 100 parts of modified acrylate-based adhesive, 14-20 parts of MDI prepolymer, 9-12 parts of tackifying resin, 4.5-6 parts of filler, 1-1.3 parts of dispersing aid, 0.7-0.9 parts of defoamer, and 0.12-0.15 parts of light stabilizer; the high-viscosity pressure-sensitive adhesive uses modified acrylate-based adhesive as a substrate, and is formed by a nucleophilic addition reaction of 4-trimethoxysilyl butyraldehyde and acrylamide, and then copolymerized with an acrylate monomer; the high-viscosity pressure-sensitive adhesive has excellent initial adhesion, can realize rapid coating of cotton, improve production efficiency, and maintain a high holding force and peel strength, which is beneficial to the stability of cotton coating, and avoids bag collapse during packaging and transportation.

The present invention discloses a biodegradable copolyester elastomer BALK, a preparation method and an application thereof, wherein the biodegradable copolyester elastomer BALK is a copolymer of a degradable hard segment and a degradable soft segment, wherein the hard segment is a carboxyl-terminated polyester, and the soft segment is a non-crystalline carbon dioxide-based polyester diol, wherein the mass ratio of the hard segment is 10-30% by mass, the number average molecular weight of the hard segment is 1100-3000, the number average molecular weight of the soft segment is 2000-3000, and the number average molecular weight of the biodegradable copolyester elastomer BALK is 30000-50000. The degradable polyester pressure-sensitive adhesive containing the biodegradable copolyester elastomer BALK of the present invention can simultaneously take into account excellent initial adhesion, sustained adhesion, high peel strength and high degradation rate.

The application discloses a PVD process high-temperature-resistant water-based coating adhesive protective film and a preparation method thereof. The protective film comprises a substrate layer, a water-based adhesive layer coated on one surface side of the substrate layer, and a water-based high-temperature-resistant coating layer coated on the other surface side of the substrate layer. The water-based adhesive layer is formed by coating and curing a first composition comprising a modified water-based acrylate emulsion, a high-temperature-resistant tackifying resin, a crosslinking agent, a first functional additive, and deionized water. The protective film is firmly attached without displacement, and the workpiece surface is free of adhesive residue after peeling. The VOC content of the fully water-based system is extremely low, meeting the requirements of green manufacturing.

This invention relates to the field of tape technology, specifically to an ultra-thin green PET pressure-sensitive adhesive tape with a high gyrometric coating reinforcement. The tape comprises a green PET substrate with a thickness ≤12μm and a primer reinforcement layer and a pressure-sensitive adhesive layer sequentially arranged therefrom. The primer reinforcement layer consists of an anchoring primer layer, an intermediate primer layer, a borate ester dynamic covalent pre-organized layer, an iron-citric acid slow-release coordination layer, a free trivalent iron locking layer, and a pH recovery and shaping layer. Through multi-layer synergistic action, it maintains high surface energy for a long time, significantly improving the interfacial bonding strength with water-based pressure-sensitive adhesives, resistance to damp heat aging, and resistance to die-cutting edge warping, while maintaining the flexibility of the substrate, making it suitable for the field of precision electronic assembly.

This invention relates to the field of adhesive preparation technology, and particularly to an environmentally friendly composite organic adhesive suitable for reinforcing and bonding multifunctional backpack components. The adhesive comprises 35% epoxy resin, 10% polyurethane, 35% ethyl cyanoacrylate, 10% liquid crystal polymer powder, 5% banana oil, and 5% acrylic acid. Synergistic effect of multiple components: epoxy resin provides high strength and rigidity, polyurethane provides flexibility and toughness, ethyl cyanoacrylate provides fast fixation, and liquid crystal polymer powder provides wear and weather resistance. The six components complement each other, achieving a combination of fast curing, high strength, flexibility, and weather resistance. Perfect compatibility with multiple materials: It exhibits excellent adhesion to fabrics such as nylon, polyester, and canvas, as well as ABS, PC, PP, TPU, and polyethylene fibers, with strong interfacial bonding and no selective adhesion defects. Extremely adaptable to various working conditions: It is resistant to repeated bending, friction and wear, water immersion, UV aging, and high and low temperatures, meeting the requirements of complex outdoor environments and long-term dynamic use, and the bonded parts are not prone to failure.

The invention aims to provide the bio-based core-shell structure acrylic pressure-sensitive adhesive and the preparation method thereof, and the lignin bio-based monomer is introduced, so that the adhesive has the advantages of environmental protection and reproducibility. The cohesive force of the polymer is ensured, the sufficient wetting ability and viscosity are also ensured, and the adhesive has excellent initial adhesion, peel strength and persistent adhesivity. The film has the characteristics of convenience in use and good environmental friendliness, can be improved by a user according to different requirements, and can be widely applied to the fields of packaging, advertisements, protective films, transportation, electronics and the like.

The invention discloses a single-component solvent-free polyurethane adhesive and a preparation method and application thereof, the single-component solvent-free polyurethane adhesive is composed of a main material and an auxiliary agent, based on 100 wt% of the single-component solvent-free polyurethane adhesive, the main material comprises 40 wt%-65 wt% of polyether polyol, 4 wt%-15 wt% of polyester polyol, 15 wt%-45 wt% of isocyanate and 1 wt%-9 wt% of a chain extender; the auxiliary agent is prepared from 0.1 wt% to 1 wt% of a tackifier, 0.05 wt% to 0.5 wt% of a coupling agent, 0.03 wt% to 0.06 wt% of a catalyst and 0.002 wt% to 0.02 wt% of a stabilizer. When the single-component solvent-free polyurethane adhesive provided by the invention is used for paper-plastic compounding, after the single-component solvent-free polyurethane adhesive is cured for 12 hours in an environment with the temperature of 35 DEG C and the humidity of 70%, paper fibers are completely transferred, and the requirements of good initial adhesion, high bonding strength and high curing speed in the field of paper-plastic compound packaging are met.