PTFE浸渍整理对芳纶针刺毡滤料性能的影响  

Influence of impregnation with PTFE on the properties of aramid needle felt filter

作　　者：何建良 阳建军 宋西全 朱海霖[2] 马海兵 HE Jian-liang;YANG Jian-jun;SONG Xi-quan;ZHU Hai-lin;MA Hai-bing(Yantai Spandex Group Co.,Ltd.,Yantai 264006,China;Zhejiang Sci-Tech University,Hangzhou 310018,China;Nanjing Jihua 3521 Environmental Protection Technology Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]烟台泰和新材集团有限公司,山东烟台264006 [2]浙江理工大学,浙江杭州310018 [3]南京际华三五二一环保科技有限公司,江苏南京210000

出　　处：《印染》2019年第20期42-46,共5页China Dyeing and Finishing

摘　　要：利用聚四氟乙烯(PTFE)乳液对纯芳纶针刺毡进行浸渍整理,以获得性能良好的工业过滤材料。研究了浸渍整理对芳纶针刺毡面密度、厚度、表面形貌、透气性、力学性能、耐酸碱性和过滤性能的影响。结果表明:浸渍整理使芳纶针刺毡面密度和厚度增加,纤维表面附着有PTFE膜状物,孔径明显减小且分布更为窄而集中,透气性稍有下降;PTFE/芳纶复合针刺毡具有更强的横纵向断裂强力,同等条件下耐酸碱性能有所提高,对0.3μm聚苯乙烯颗粒的过滤效率可从43.92%显著提升至75.45%。In order to obtain the industrial filtration materials with good performance,the pure aramid needle felt filters are finished with PTFE finishing solution through impregnation.The effects of impregnation on the weight,thickness,surface morphology,gas permeability,mechanical properties,acid and alkali resistance and filtration properties of aramid needle felt filters are investigated.PTFE/aramid com posite needle-punched felts have excellent breaking strength,improved acid and alkali resistance under the sam e conditions,and enhanced filtration efficiency of 0.3μm polystyrene particles from 43.92 % to 75.45%.

关 键 词：化学整理 浸渍 聚四氟乙烯 过滤性能 芳纶 针刺毡 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]