5results about How to "Heat resistant" patented technology

The utility model discloses a kind of heat-insulated fireproof doors, comprising: door frame and two groups of fireproof door panels, two groups of fireproof door panels are fixedly installed with heat insulation layer between, heat insulation layer one end is provided with installation port, installation port is fixedly installed with door gap plugging mechanism, and the plugging end of door gap plugging mechanism extends from the gap between two groups of fireproof door panels, and two groups of fireproof door panels are rotatably installed in door frame, and then make door gap plugging mechanism can extend from between fireproof door panel and touch on the inner wall surface of door frame.The application is designed by door gap plugging mechanism, so that it passes through the double protection mechanism of " primary sealing + automatic plugging", first by fireproof door panel and spacer plate form preliminary blocking, then utilize zirconium fibre composite felt to automatically expand and fill gap when fire, substantially delay the speed of high-temperature dense smoke diffusion to indoor, and gain more escape time for personnel.

This invention discloses a hot melt adhesive for high-temperature protective clothing and its preparation method, comprising the following raw materials: Fischer-Tropsch wax, styrene-isoprene-styrene block copolymer with 0% diblock content, styrene-isoprene-styrene block copolymer with 20-30% diblock content, styrene-isoprene-styrene block copolymer with 40-50% diblock content, rosin resin, petroleum resin, ethylene-vinyl acetate copolymer, and antioxidant. This hot melt adhesive requires no toxic solvents, possesses both heat resistance and water resistance, and is suitable for high-temperature protective clothing. The preparation method of this hot melt adhesive involves heating and mixing polymer materials without adding any solvents or toxic substances during the preparation process, reducing the risk of toluene poisoning, completely solving the problems of solvent evaporation and recovery, and, more importantly, eliminating safety hazards in the storage and use of organic chemicals, achieving environmentally friendly, safe, and efficient production.

This invention provides a water-based coating for anti-slip and heat-resistant bamboo mats. The coating comprises a water-based penetrating primer layer, a water-based colored topcoat layer, a water-based water-resistant and heat-resistant coating, and a water-based anti-slip and wear-resistant coating. These four layers are sequentially applied to a bamboo substrate. This invention consists of four coating layers, which, when applied to a bamboo substrate, endow the bamboo product with excellent anti-slip, wear-resistant, water-resistant, and heat-resistant properties.

The application provides a non-fluorine-coated diaphragm, a preparation method thereof, and a secondary battery. The non-fluorine-coated diaphragm comprises a base film and a composite coating layer coated on at least one side of the base film. The composite coating layer comprises a first coating layer and a second coating layer, and the first coating layer is arranged between the second coating layer and the base film. The first coating layer comprises first inorganic particles and second inorganic particles. The second coating layer comprises third inorganic particles and polymer particles. The polymer particles are non-fluorine polymers. The lower surface of the polymer particles is tangent to the first coating layer, and the polymer particles are filled in the second coating layer. When the temperature in the battery cell rises, the non-fluorine-coated diaphragm can effectively block the charging and discharging of the battery cell. When the temperature in the battery cell returns to normal, the swelling of the polymer particles decreases, the coverage of the polymer particles in the composite coating layer decreases, and the battery cell can operate normally again. The non-fluorine-coated diaphragm does not deteriorate the internal resistance and cycle performance of the battery cell, and simultaneously improves the heat resistance of the non-fluorine-coated diaphragm at high temperatures.

This invention belongs to the technical field of industrial magnesium alloy materials, specifically a heat-resistant magnesium alloy with high strength, toughness, high conductivity, and brazability, and its preparation method. By mass percentage, the magnesium alloy comprises: Zn 5.0%–8.0%, Mn 0.5%–1.5%, Cu 0.5%–3.5%, Ag 0.05%–3.5%, Ca 0.01%–1.5%, with the balance being Mg. The magnesium alloy material prepared by the method combined with specific processes has a tensile strength ≥360MPa, elongation ≥10%, conductivity ≥19MS / m, tensile strength ≥200MPa at 200℃, and a tensile strength decrease of ≤10% after brazing at 350–450℃. Furthermore, it can be brazed into complex cavity components integrating load-bearing and conductive functions, enabling service in high-temperature environments up to 200℃. It has significant application value in electronic signal and microwave signal transmission components in aerospace, aviation, transportation, and weaponry fields.