摘要
为了给不同高温烟尘过滤工况提供纤维选型参考依据,拓展芳纶在高温烟尘过滤领域的应用,分别测试了芳纶针刺毡与聚酰亚胺针刺毡及玻纤机织布覆膜滤料的过滤性能、耐温性、耐磨性、耐折性、耐酸碱腐蚀性和阻燃性。通过对比分析发现,芳纶针刺毡具有较好的耐温性,在220℃下处理24 h后强力基本不变,并表现出卓越的耐折性和优良的耐酸碱腐蚀性。1 D超细芳纶未覆膜针刺毡表现出较好的过滤性能,但其阻燃性不足以作为阻燃型滤料直接使用,可以通过PTFE乳液浸渍处理得以提升并同时赋予其更好的耐磨性。
Aimed to expand applications of aramid fiber fabrics and provide a reference for select fibers for filter bags using in high temperature flue gas filtration,properties such as filtration performance,temperature resistance,wear resistance,folding endurance,corrosion resistance and flame retardance of aramid fibre needle punched nonwoven fabrics were measured,in comparison with polyimide fiber needle punched nonwoven fabrics and glass fiber woven fabrics.It is found that aramid fiber fabric exhibits excellent temperature resistance.The tensile strength remains unchanged after thermal treatment under 220℃for 24 hours.The folding endurance and corrosion resistance are excellent.The filtration performance of fabrics composited with 1 D aramid fibers is excellent while its flame retardance and wear resistance should be improved by PTFE emulsion impregnation.
作者
刘宇升
路玉琢
张田
张千
王洪
LIU Yusheng;LU Yuzhuo;ZHANG Tian;ZHANG Qian;WANG Hong(College of Textile,Donghua University,Shanghai 201620,China;Tayho Advanced Materials Group Co.Ltd.,Yantai 264006,Shandong,China;Yanpai Filtration Technology Co.Ltd.,Taizhou 317200,Zhejiang,China)
出处
《纺织高校基础科学学报》
CAS
2023年第5期16-22,30,共8页
Basic Sciences Journal of Textile Universities
基金
教育部产学合作协同育人项目(10115280)。
关键词
芳纶
针刺毡
过滤
耐折
耐腐蚀
玻纤
aramid fiber
needle punched nonwoven fabric
filtration
folding endurance
corrosion resistance
glass fiber
