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PPS (Ryton) Needle Felt Filter Fabrics
PPS (Ryton) needle felt filter fabrics are made out of PPS (Polyphenylene Sulfide) fiber, special for high-temperature baghouse filter bags. The PPS (Polyphenylene Sulfide) fiber is a high-performance fiber. It has excellent characteristics such as high-temperature resistance, hydrolysis resistance, acid and alkali resistance, abrasion resistance, flame retardancy, and good mechanical strength.
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- High-temperature resistance, good thermal stability, continuous working temperature < 190?, instantaneous working temperature 200?, melting point is 285?. 170 ~ 190 ? is the best working temperature of PPS needle felt filter media. Under 190 ?, the breaking strength in warp and weft securely decrease.
- Good hydrolysis resistance only decomposes in strong oxidants.
- Excellent acid and alkali corrosion resistance, only after the PTFE (polytetrafluoroethylene).
- Excellent corrosion resistance, it’s good resistant to organic acids, inorganic acids, oxidants, etc.
- Excellent flame retardancy, LOI (Limited Oxygen Index) of PPS is 34, it’s a good flame retardant filter fabric.