3results about How to "Avoid easy reunion problems" patented technology

This invention discloses a near-infrared responsive self-healing coating and its preparation method, relating to the field of functional coating technology. The near-infrared responsive self-healing coating, by weight, comprises the following components: 100 parts of matrix resin, 1-3 parts of near-infrared absorber, 10-20 parts of self-healing agent, 8-15 parts of curing agent, 1-3 parts of dispersant, 0.5-2 parts of defoamer, and 20-30 parts of solvent. This invention utilizes a specific structured organic molecular near-infrared absorber, which exhibits good compatibility with the matrix resin and achieves uniform dispersion at the molecular level. This avoids the problem of easy agglomeration in traditional inorganic photothermal materials, while significantly improving photothermal conversion efficiency and solving the deficiency of insufficient photothermal conversion capability of conventional organic dyes.

This application discloses an optical adhesive, its preparation method, an optical adhesive film, and a display device, belonging to the field of optical adhesive technology. By compounding a modified acrylate copolymer with a polyurethane acrylate oligomer in the raw materials of the optical adhesive, a highly transparent resin system can be formed. The modified acrylate copolymer is a copolymer pre-formed from at least one acrylate derivative. Compared to ordinary acrylate monomers, the modified acrylate copolymer possesses high refractive index and low light scattering characteristics, effectively improving light transmittance. Furthermore, this highly transparent resin system achieves good light transmittance without relying on nanoparticles, avoiding the problem of nanoparticle agglomeration, thereby improving the haze of the optical adhesive layer obtained from the optical adhesive.

The present invention relates to the technical field of ultra-high performance concrete preparation, and specifically discloses a preparation method of a surface-modified composite micro-nano ultrafine powder and ultra-high performance concrete thereof. The preparation method comprises the following steps: (1) dissolving isobutyl triethoxysilane and polyacrylate in acetone or ethyl acetate to obtain a surface modifier solution. (2) adding industrial solid waste micro-nano ultrafine powder having gelling activity to anhydrous ethanol dissolved with hexadecyl trimethyl ammonium bromide for reaction. After completion, a solid product is separated, washed, and dried to obtain a pre-treated micro-nano ultrafine powder. (3) adding the pre-treated micro-nano ultrafine powder to the surface modifier solution, then adding a pH regulator to adjust the reaction system to acidity, separating the solid product after the reaction, washing, and drying to obtain a surface-modified composite micro-nano ultrafine powder. The present invention uses modified micro-nano ultrafine powder to not only improve the dispersibility in concrete, but also significantly improve the mechanical properties of concrete.