6results about How to "Guaranteed adhesion strength" patented technology

The invention relates to the field of coatings, and particularly discloses an environment-friendly anti-radiation coating for buildings and a preparation method thereof.Renewable vegetable fat is used as an epoxy resin modifier and compounded with acrylic acid to generate bio-based acrylic resin, and the bio-based acrylic resin is combined with an organosilicon polymer; spherical hollow nano titanium dioxide prepared by taking a nano carbon sphere template as a template is subjected to surface carboxylation modification and then is combined with graphene oxide to cooperate with multiple anti-radiation components, so that the defects that an anti-radiation coating is easy to decompose and migrate and is non-uniform in dispersion are effectively overcome, and the anti-radiation performance of the coating can be remarkably improved; meanwhile, the heat resistance and the strength are excellent, the service life is not prone to being shortened even if the cable is exposed in the natural environment, and the preparation method is simple and suitable for large-scale application and popularization.

The utility model discloses a high wear-resistant galvanized plate, which relates to the technical field of galvanized plates and comprises a steel plate base layer, a corrosion-resistant layer, a galvanized base layer and a galvanized layer are arranged above the steel plate base layer, and the steel plate base layer, the corrosion-resistant layer, the galvanized base layer and the galvanized layer are sequentially arranged from bottom to top. The corrosion-resistant layer is arranged above the steel plate base layer, the zinc-plated base layer and the zinc-plated layer are arranged above the corrosion-resistant layer, and the zinc-plated base layer is matched with the zinc-plated layer, so that the steel plate base layer can be protected; and the galvanized base layer and the galvanized layer are attached through a plurality of transverse attachment grooves, transverse attachment blocks, longitudinal attachment grooves and longitudinal attachment blocks, and the transverse attachment grooves, the transverse attachment blocks, the longitudinal attachment grooves and the longitudinal attachment blocks are matched, so that the attachment strength of the galvanized layer can be ensured, and the wear resistance and stability of the galvanized plate in long-term use can be ensured.

The utility model discloses a separation type facial mask bag which comprises a bag body, a liquid cavity and a facial mask cavity are arranged in the bag body, a first easy-to-uncover strip and a second easy-to-uncover strip are arranged on the two sides of the interior of the bag body between the liquid cavity and the facial mask cavity respectively, and the first easy-to-uncover strip and the second easy-to-uncover strip are attached in a separable mode through hot melt adhesive. The first easy-to-tear strip and the second easy-to-tear strip are provided with transverse embossments, and vertical embossments are arranged at the two ends of the transverse embossments and form locking edges. A clamping block is arranged on the top face of the first easy-to-tear strip, and a connecting groove matched with the clamping block is formed in the top face of the second easy-to-tear strip.

This invention belongs to the field of PCB board testing technology, specifically relating to a testing method for PTH (Polymerization Thermoplastic Hole) controlled-depth stepped copper foil. The method includes multiple PCB boards to be tested, all of which undergo drilling, controlled-depth step drilling, and stepped hole drilling. A baking board is used to support and heat the PCB boards. The heated PCB boards undergo copper plating, thickening, and full-board electroplating. The electroplated PCB boards are then rolled into SET boards and reflow soldered. This invention tests different types of substrates using different copper plating processes to identify the causes of PCB delamination after reflow soldering and wave soldering. Based on this, the copper plating solution is improved by adding polyethylene glycol and a mixture of polyethylene glycol and ethylenediaminetetraacetic acid (EDTA) to the solution in stages and adjusting the pH value to find a pH environment suitable for tensile testing. This ensures that the copper layer adhesion strength is maintained after copper plating and addition, reducing the generation of defective boards.

The invention relates to the technical field of building decoration, in particular to an assembly type suspended ceiling which comprises a plurality of long beams and gypsum boards, supporting plates are fixedly installed at the left end and the right end of each long beam, a first limiting sliding groove is formed in the upper end of each long beam, a second limiting sliding groove is formed in the lower end of each long beam, and the first limiting sliding grooves and the second limiting sliding grooves are both in a convex shape; the long beams are used for providing basic support, then the supporting plate is used for supporting and fixing the gypsum board, and compared with an existing screw tapping fixing mode, the strength of the gypsum board is maintained, and the fixing strength and stability are guaranteed; according to the suspended ceiling, through sliding fit supporting of the limiting sliding sleeve and the limiting sliding groove in the long beam, the fixing position of the suspended ceiling can be adjusted according to the mounting position of the hoisting lead screw, so that the perpendicularity of the hoisting lead screw is ensured, and then the flatness of the suspended ceiling is ensured; according to the suspended ceiling, the concave holes are formed in the bottom surface of the supporting plate, so that the contact surface during subsequent putty brushing is increased, and the adhesion strength of putty is ensured.

The application belongs to the field of high polymer materials, and discloses a polymer reversible interlocking network adhesive film, a preparation method and application thereof.The polymer reversible interlocking network adhesive film comprises the following components by weight percentage: crosslinking polymer A containing dynamic disulfide bond 50%-75%, crosslinking polymer B containing dynamic borate ester bond 25%-50%.The polymer reversible interlocking network adhesive film prepared by the application has good dissipation performance, fully guarantees the bonding cohesive strength inside the adhesive film;under heating ultrasonic and vacuum hot pressing, the polymer reversible interlocking network adhesive film has substrate-induced self-layering effect, fully guarantees the adhesion strength of the bonding interface;from the interface to the inside, the bonding effect is fully guaranteed, and the strong bonding of two different substrates, i.e., glass and TPT fluorine-containing back plate, is realized on the basis of not damaging the substrate.The reversible covalent bond balance reaction in the polymer reversible interlocking network adhesive film can promote the recycling and repeated bonding of the adhesive film.