4results about How to "Improve adhesion stability" patented technology

The utility model relates to the technical field of decorative plates, in particular to a building outer wall decorative plate, which is characterized in that the decorative plates are sequentially adhered to a wall surface, so that four end grooves among the decorative plates can form a circular groove, bolts on a seat body can be sequentially embedded into insertion holes in the end grooves, and the tail ends of the bolts can be nailed into the wall surface. The seat body can be adaptively mounted in a circular groove formed by the four end grooves, so that the splicing stability between the decorative plates can be improved through inlaying mounting between the plug pins and the plug holes, and the decorative plates and other plates can be prevented from falling off; the tail end of the bolt is nailed into the wall surface, so that the adhesion stability between the decorative plate and the wall surface can be improved; meanwhile, the decorative plates can be separated through the partition plates on the seat body, so that equal intervals can be reserved between the decorative plates, workers can conveniently fill the decorative plates with the seam beautifying agent in the later period, meanwhile, the decorative plates can be supported through the partition plates, and the installation stability of the decorative plates can be further improved.

This invention discloses a hydrogel patch for repairing gastric perforation and its preparation method, belonging to the field of biomedical materials technology. The preparation method is as follows: Acryloylvaline, acrylic acid, methylenebisacrylamide, compound A, and a photoinitiator are dissolved in an alcohol solvent, and after defoaming, a precursor solution is obtained. The precursor solution is then placed in a mold and cured by ultraviolet light. The resulting hydrogel is immersed in a hydrochloric acid solution to displace the alcohol solvent, yielding the hydrogel patch for repairing gastric perforation. The hydrogel patch provided by this invention has advantages such as resistance to strong acid corrosion, good biocompatibility, low swelling rate, and stable adhesion under fluctuating pH conditions. This strong and stable adhesion ensures that the hydrogel can adhere reliably and persistently to the gastric perforation site in a dynamic gastric acid environment, providing a stable platform for drug delivery, thereby potentially shortening surgical time and promoting wound healing.

The present application belongs to the technical field of surface functional coating, and relates to a magnesium alloy photo-thermal super-hydrophobic coating with enhanced stability and a preparation method thereof. In view of the problems that the existing photo-thermal super-hydrophobic coating is prone to structural collapse, interface peeling and performance attenuation during service, a micron column structure is constructed on the surface of a magnesium alloy substrate as a support framework, and a composite coating composed of multi-walled carbon nanotubes, titanium dioxide and modified epoxy resin is sprayed on the surface of the micron column structure. The modified epoxy resin introduces a low surface energy component and enhances the interface bonding capacity of the coating and the substrate. Through the synergistic effect of microstructure support and interface enhancement, the stability of the coating under the action of mechanical wear, chemical corrosion, high-low temperature cycle and water environment is significantly improved. On this basis, the coating still maintains good super-hydrophobicity, photo-thermal performance and anti-icing and deicing performance, and is suitable for magnesium alloy surface protection and anti-icing applications under complex environmental conditions.

This application relates to the field of silicone rubber, and more specifically, to a high-performance weather-resistant and anti-fouling silicone rubber for encapsulation / bonding of electronic components and its preparation method. It comprises the following raw materials in weight percentages: 50-65% base compound; 20-30% insulating filler; 5-8% A synergist; 2-5% B synergist; the balance being processing aids; A synergist is a hydrogen-containing silicone resin; B synergist is composed of cage-type polysilsesquioxane containing activating groups, tetravinyltetramethylcyclotetrasilazane, and silicone wax in a weight ratio of 1:(0.5-1):(1-3); and the compound system of synergist and B synergist can bond with the silicone rubber obtained from the base compound and insulating filler to form a dense and stable three-dimensional cross-linked network after curing. This not only possesses superior physical properties but also excellent bonding strength, low shrinkage, weather resistance, and anti-fouling properties, improving the structural stability and long-term reliability of electronic components.