| abstract |
The invention relates to a polyurethane film for protective clothing and a preparation method thereof, comprising the following components: 15-35 parts of water-based polyurethane, 5-10 parts of a bromine-based flame retardant, 2-5 parts of a phosphorus-based flame retardant, and 15 parts of a coupling agent -25 parts, lubricant 5-10 parts, leveling agent 4-6 parts, filler 10-15 parts, and peeling aid 3-4 parts. In the preparation method of the protective clothing polyurethane film, the water-based polyurethane, the brominated flame retardant and the phosphorus-based flame retardant are mixed and stirred, and the water-based polyurethane is used to improve the waterproof performance of the protective clothing. The addition of nano-silica can better improve the flame retardancy of protective clothing. In addition, the filler is nano-alumina, which has high hardness and good dimensional stability, or nano-silica can improve the anti-aging, strength and chemical resistance of other materials. Further improve the abrasion resistance and flame retardancy of the polyurethane film. |