32results about How to "Overcome the disadvantage of poor adhesion" patented technology

The invention discloses a protective film for digital electronic equipment, comprising a plastic frame (1) integrally formed by injection molding and a rectangular substrate (2). ) of the annular connecting edge (3), the annular connecting edge (3) tightly wraps the edge of the substrate (2), and the edge of the substrate (2) is embedded in the interior of the annular connecting edge (3). Its processing technology is also disclosed. The beneficial effects of the present invention are: the present invention combines the advantages of glass materials and silica gel materials (including plastics such as silica gel, pet, abs, pp, pc, etc.), and can not only play a good protective role, but also reduce the thickness of the protective film, It has good transparency; the processing method of high-precision mold injection molding or die-casting plastic frame around the glass substrate ensures a good connection structure between the glass substrate and the plastic frame, and overcomes the disadvantage of poor adhesion between glass and silicone materials.

The invention discloses a method for preparing a black extinction film layer with high solar energy absorption rate and high emissivity on the surface of a titanium alloy, which relates to a method for preparing a ceramic film layer on the surface of a titanium alloy. The purpose of the invention is to solve the problems of low solar energy absorption rate, low self-emission rate and low binding force between the film layer and the base body existing in the coating on the surface of the titanium alloy. Methods: 1. Titanium alloy pretreatment; 2. Micro-arc oxidation to obtain a black extinction film with high solar energy absorption rate and high emissivity on the titanium alloy surface. The thickness of the black extinction film with high solar energy absorption rate and high emissivity on the surface of the titanium alloy prepared by the invention is 20 μm to 30 μm, the roughness of the film layer is 0.5 μm to 3 μm, the solar absorption rate is 0.95 to 0.98, and the emissivity is 0.93 to 0.97 . The invention discloses a method for preparing a black extinction film layer with high solar energy absorption rate and high emissivity on the surface of a titanium alloy.

The invention relates to an ultrathin water-based epoxy resin expandable fireproof paint and a preparation method thereof, belonging to the technical field of plating metal materials. The fireproof paint comprises water, aqueous epoxy emulsion, a solidification agent, ammonium polyphosphate, a charring foaming agent, a charring accelerant, nano fillers, inorganic fireproof fillers, a dispersing agent, a defoaming agent and a thickening agent. A ball milling machine is adopted for preparing a double-component paint; component A is prepared by two steps of: (1) dispersing the ammonium polyphosphate, the charring foaming agent, the charring accelerant, the nano fillers and the inorganic fireproof fillers in the water by the dispersing agent, with the milling time of 1 to 2 hours; and (2) adding the solidification agent and the defoaming agent for continuously milling for 0.5 to 1 hour; and component B is prepared by one step of: milling the aqueous epoxy emulsion, the thickening agent and the defoaming agent for 0.5 to 1 hour. When the coating thickness of the fireproof paint is smaller than or equal to 1mm, the fireproof time is larger than 90 minutes, the maximum smoke density is smaller than 50, and the adhesion force is larger than or equal to 12MPa. The invention has the advantages of simple preparation process, environmental protection and excellent performance, and can be used for the fire safety protection of the inner parts of large steel structures of buildings, ships, oil storage tanks and the like.