▎ 摘　　要

NOVELTY - A polyurethane fiber air conditioner filter preparing method involves adding graphene to 1 l heptane, sonicating for 1-2 hours to obtain graphene suspension. The graphene suspension is added with 0.5-1 l silicone resin, 0.05-0.1 l polyurethane prepolymer, and 5-10 g curing agent sequentially under stirring condition and stirred well to obtain a mixed solution. Polyurethane fabric is leached in tridecafluorooctyltriethoxysilane, drained, and cured to obtain treated fabric. The mixed solution is sprayed onto the treated fabric, and air-dried for 24-48 hours to obtain the finished product. USE - Method for preparing polyurethane fiber air conditioner filter. ADVANTAGE - The method enables preparing polyurethane fiber air conditioner filter with better effect of air purification and filteration, easy cleaning and high durability. DETAILED DESCRIPTION - A polyurethane fiber air conditioner filter preparing method involves adding graphene to 1 l heptane, sonicating for 1-2 hours to obtain graphene suspension. The graphene suspension is added with 0.5-1 l silicone resin, 0.05-0.1 l polyurethane prepolymer, and 5-10 g curing agent sequentially under stirring condition and stirred well to obtain a mixed solution. Polyurethane fabric is leached in tridecafluorooctyltriethoxysilane for 2-3 times, each time for 3-5 minutes, drained, and cured naturally for 12-24 hours to obtain treated fabric. The mixed solution is evenly sprayed onto the treated fabric, and air-dried naturally for 24-48 hours to obtain the finished product, where the polyurethane fiber air conditioner filter is made of polyurethane fabric, which has a plain weave, and the polyurethane fiber air filter has warp density of 27.82-28.46 yarns/cm, weft density of 27.6-29.1 yarns/cm, aperture of 301-311 microns, wire diameter of 51-57 micron, polyester fiber strength of 4.0-5.2 CN/dtex, elongation of 18-25%, the boiling water shrinkage of 8-12%, and uniform strip.