7results about How to "Good initial adhesion" patented technology

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 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 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.