PPS bag filters are high-performance dust collection bags made primarily from polyphenylene sulfide (PPS) fibers. Due to their excellent resistance to high temperatures, corrosion, high filtration accuracy, and good cleaning performance, they are widely used in various industrial sectors. In environments with high-temperature flue gas emissions, such as coal-fired power plants, waste incineration plants, steel mills, and cement factories, PPS bag filters effectively capture dust particles, meeting stringent environmental emission standards. They are particularly suitable for complex operating conditions containing acidic gases (such as SO2, SO3) and alkaline dust. Moreover, PPS bag filters can also be used in flue gas purification systems in industries like chemicals, metallurgy, and coking, ensuring equipment stability and extending service life. They are one of the key materials for achieving industrial dust removal and emissions control.The exhaust gas from chemical reaction kettles containing chlorine and ammonia has extremely strong corrosive properties. After being impregnated with PTFE emulsion, the PPS fabric bags form a dense protective film on the fiber surface. After 48 hours of alternating aging with ***, the strength retention rate remains above 85%; its flame retardancy index reaches UL94 V0 level, with an oxygen index of 34%, and it does not ignite even when exposed to high-concentration organic solvent sparks; the surface resistance of the coated film is reduced to 10?Ω, effectively preventing static accumulation and ensuring safe operation in flammable dust conditions; it can operate continuously for two years without replacement, providing the enterprise with a safe, stable, and low-cost exhaust gas treatment solution.