PTFE表面改性及其对油污的吸/脱附性能  

Modification and oil adsorption/desorption properties of polytetrafluoroethylene fiber

作　　者：吕素真 曾凡龙[1] 曹谦芝[1] 刘占莲[1] 

机构地区：[1]东华大学材料学院,纤维材料改性国家重点实验室,上海201620

出　　处：《化工新型材料》2016年第8期240-242,共3页New Chemical Materials

基　　金：中央高校基本科研业务费专项资金资助(2232013D3-18)

摘　　要：采用表面改性的方法对聚四氟乙烯纤维(PTFE)滤料进行亲水疏油改性,分别利用傅里叶红外光谱仪和全自动视频微观接触角测量仪对PTFE表面官能团和纤维亲水性进行测试。研究了改性及未改性PTFE纤维对油污的吸/脱附性能,结果表明油污浓度、时间、温度、pH值对吸/脱附性能有显著的影响。改性及未改性PTFE纤维的吸附量最大的吸附条件是:40℃、pH=3、油浓度为100mg/L时,最大吸附量分别为65.00、89.18mg/g。The modification of polytetrafluoroethylene（PTFE） filter was proposed to fabricate the hydrophilie and oleophobic surface. The functional groups and hydrophobicity of PTFE were examined by flourier transform infrared spec- troscopy（FT-IR） and optical contact angle measurement, respectively. The oil adsorption/desorption properties of the modi- fied and raw PTFE fiber were highly influenced by oil concentration, time, temperature and pH value. The condition of max adsorption of modified and unmodified fibers were： 40℃, pH = 3, oil concentration of 100mg/L, and the quantities of max adsorption were 65.00,89.18 mg/g, respectively.

关 键 词：PTFE 表面改性 油污 吸/脱附性能 

分 类 号：TQ342.711[化学工程—化纤工业]