以空气气氛对聚全氟乙丙烯（FEP）纤维进行等离子体处理,利用SEM、DSC、XPS对改性前后纤维的性能及形貌进行表征,并测试水在纤维表面的接触角。等离子体处理后纤维的表面发生了C—F键断裂,表面形貌变得粗糙,O原子含量增加4.65%,F原子含量降低4.37%,O/C、F/C原子含量比分别由0.19和0.28变为0.25和0.22,但DSC结果表明结晶度未发生变化;水在纤维表面的接触角由改性前的112.3°降至改性后的54.1°,纤维亲水性得到明显增强。
The FEP fibers treated by air plasma were characterized by DSC,SEM and XPS.The contact angle of FEP fiber against water was measured.The results of DSC showed that the crystallinity of FEP fiber was not affected by air plasma treatment.The surface morphology became rough after plasma treatment.The atomic content of O has increased 4.65%.The atomic content of F reduced 4.37%.The cleavage of C—F caused by plasma etch induced the atomic content ratio of O/C and F/C changed from 0.19 and 0.28 to 0.25 and 0.22 respectively.The contact angle against water of FEP fiber decreased from 112.3 to 54.1° after the plasma treatment.The hydrophilicity of the FEP fiber was enhanced remarkably through air plasma treatment.
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