A polyphenylene sulfide nonwoven fabric and a filter material made therefrom
By optimizing the ratio and structure of polyphenylene sulfide microfiber and other fibers, the problem of insufficient capture efficiency of coal boiler filter bags under low emission standards has been solved, resulting in a high-efficiency, low-loss filter material suitable for various industrial fields.
CN114130121BActive Publication Date: 2026-06-19TORAY FIBER RES INST(CHINA) CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TORAY FIBER RES INST(CHINA) CO LTD
- Filing Date
- 2021-09-02
- Publication Date
- 2026-06-19
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Abstract
This invention discloses a polyphenylene sulfide (PPS) nonwoven fabric and the filter material made from it. The nonwoven fabric contains 40-90% by weight of PPS microfibers and 10-60% by weight of PPS fibers. The average diameter of the PPS microfibers is 8-11 μm, and the average diameter of the PPS fibers is 11.5-15 μm. In the filter material made from this PPS nonwoven fabric, pores with a pore size greater than 20 μm do not exceed 25% of the total pores. The PPS nonwoven fabric of this invention has a low basis weight, and the filter material made from it has high collection efficiency and low pressure loss, making it suitable for applications in coal boilers, waste incinerators, steel, and asphalt industries.
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