The invention discloses an ultra-high-temperature dust removal bag material and a preparation method thereof, relating to the technical field of filter materials. The preparation method comprises the following steps: extruding and granulating modified polyphenylene sulfide through a twin-screw extruder to obtain masterbatches; melting and spinning the masterbatches, drawing and heat-setting to obtain the ultra-high-temperature dust removal bag material. The modified polyphenylene sulfide is obtained by grafting acetylated polyphenylene sulfide with modified nano-montmorillonite followed by hydrolysis and crosslinking. The modified nano-montmorillonite prepared by the invention, when added to polyphenylene sulfide, not only improves mechanical properties such as toughness of polyphenylene sulfide, but also effectively prolongs its service life in high-oxygen and high-temperature environments, so that the dust removal bag prepared from the modified polyphenylene sulfide has oxidation resistance and excellent mechanical properties.
Country Code: CN
Application Number: CN202411350491.2
