5results about How to "Achieving Flame Retardancy" patented technology

This invention discloses a functionalized MXene-based waterborne fire-retardant coating, its preparation method, and its application, belonging to the field of fire-retardant coating technology. This invention combines the advantages of functionalized MXene materials, such as high dispersibility, high temperature resistance, and excellent flame-retardant properties, using waterborne polyurethane as the resin matrix, ammonium citrate as the acid source, and MXene materials as nanostructured flame retardants to develop an environmentally friendly, high-performance reinforced waterborne fire-retardant coating. The MXene materials can be obtained through chemical modification with different functional groups (such as silane coupling agents, calixarenes, and MOFs) to introduce polar groups onto the surface. The fire-retardant coating prepared using functionalized MXene materials achieves UL-94 V-0 flame retardancy through a dual mechanism of physical barrier and "catalytic char formation," while also possessing high mechanical strength and thermal stability, making it suitable for protecting substrates such as metals and wood.

This invention relates to the field of flame-retardant composite materials, specifically to flame-retardant composite materials based on the synergistic reinforcement of talc and graphene sheets and their applications. It addresses the problem that existing polymer materials struggle to simultaneously achieve reinforcement, flame retardancy, and lightweighting, and require large quantities of high-performance additives. The process involves first mixing talc sheets, graphene, a composite flame retardant, and a dispersant in a high-speed mixer, then cooling to room temperature to obtain a premix. A polymer matrix is ​​then added to a twin-screw extruder. The premix and other auxiliary additives are added through a side feed port, melt-blended, water-cooled, air-dried, and pelletized to obtain composite material particles. These particles are then vacuum-dried and injection-molded to obtain the flame-retardant composite material. The flame-retardant composite material possesses excellent flame-retardant and mechanical properties, exhibiting outstanding overall performance and being more suitable for industrial production.

The present application relates to the technical field of paint, and especially relates to a weather-resistant one-coat paint and a preparation method thereof. The paint comprises component A and component B; the mass ratio of the component A to the component B is (25-30):3; according to weight parts, the component A comprises the following raw materials: 20-30 parts of hydroxyl acrylic acid resin, 10-20 parts of organic solvent, 25-35 parts of pigment, 5-15 parts of flame retardant, 1-5 parts of modified graphene and 1-4 parts of additive; and the component B is a solution of aliphatic polyisocyanate. The paint has excellent bacteriostasis, flame retardation, weather resistance and corrosion resistance.

The application discloses a bidirectional stretching flame-retardant reinforced nylon film for lithium ion battery packaging and a preparation method thereof. First, two multifunctional inorganic modified compounds, mesoporous silica coated carbon nanotube hybrid and phosphorus-nitrogen synergistic flame-retardant reinforced titanium dioxide nanorod, are designed and synthesized. Then, the two inorganic modified compounds are added as core additives, and mixed with a nylon matrix, an antioxidant, a lubricant, a dispersant and an electrolyte-resistant modifier to obtain a composite master batch through melt extrusion granulation. Finally, the composite master batch is subjected to melt extrusion, casting, bidirectional stretching, shaping and winding to obtain the bidirectional stretching flame-retardant reinforced nylon film for lithium ion battery packaging. The nylon film prepared by the application has excellent flame-retardant performance, mechanical strength, electrolyte corrosion resistance, aging resistance and processing performance, and the preparation process is simple, green and environment-friendly, and can meet the application requirements of high-end lithium ion battery packaging fields such as lithium ion battery soft packaging and hard shell packaging.

This utility model relates to a decorative leather for car armrests, belonging to the field of car armrest decoration technology. It includes composite leather with a fixing structure on the outside for positioning and easy disassembly / removal of car armrests made of different materials. The fixing structure includes a fixing plate adhered to the bottom of the composite leather. Hinges are fixedly connected to the front and rear ends of the fixing plate. A movable strip is hinged to the inner side of the hinge frame, and a magnetic block is embedded on the outer surface of the movable strip. Double-sided adhesive is provided on the bottom of the composite leather and the top of the fixing plate for bonding and positioning. The composite leather includes a surface layer, a flame-retardant layer, a reinforcing layer, and a cushioning bottom layer. A rigid cup sleeve is sewn onto the top of the composite leather. This decorative leather for car armrests, through its fixing structure, achieves the effect of positioning and easy disassembly / removal of car armrests made of different materials. Compared with existing leathers, it is easier to clean and replace, and its applicability is better.