A method for producing a high-temperature flue gas filtration base cloth

By using polyphenylene sulfide, polytetrafluoroethylene, and polyimide filaments as raw materials, combined with a specific filament composite false twist device and weft splicing method, a double-layer high-temperature flue gas filter base cloth was prepared, which solved the problems of insufficient filtration efficiency and mechanical strength of existing high-temperature flue gas filter materials, and achieved high-efficiency filtration and stability under high-temperature environment.

CN122406446APending Publication Date: 2026-07-17JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGNAN UNIV
Filing Date
2026-04-16
Publication Date
2026-07-17

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Abstract

本发明公开了一种高温烟气过滤基布的生产方法，选用聚苯硫醚、聚四氟乙烯、聚酰亚胺长丝为原料，将所选取的长丝束采用包括静止的上喂入筒、转动的中假捻筒、静止的下输出筒的长丝复合假捻装置制得相应所需的复合假捻变形纱；在此基础上，优选聚酰亚胺长丝束制得的复合假捻变形纱为里层经纱，以及聚苯硫醚、聚四氟乙烯、聚酰亚胺长丝束制得的复合假捻变形纱为外层经纱，且选用聚酰亚胺短纤 / 涤纶长丝束包芯双股线为纬纱，三者采用纬纱接结法制得具有较高强度的双层的过滤基布，实现了对各种不同场景的高温烟气的高效过滤。
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