常压射流等离子体处理PET膜诱导自由基研究  

Study of the Free Radicals Trapped on PET Films Induced by Atmospheric Pressure Plasma Jet Treatment

作　　者：孙洁[1] 武晖[2] 

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122 [2]西安工程大学科技处,西安710048

出　　处：《空军工程大学学报（自然科学版）》2015年第4期88-91,共4页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：中央高校基本科研业务费专项基金资助项目(JUSRP1044;JUSRP1045)

摘　　要：为了考察常压射流等离子体(APPJ)处理对PET膜表面诱导自由基及其引发接枝共聚反应的效能,采用电子自旋共振技术(ESR)对APPJ处理前后PET膜表面生成的自由基及其衰变行为进行测试分析,并与接枝率测试结果进行对比。结果表明:纯He气体的APPJ处理更易引发PET膜表面生成自由基,处理时间越长,膜表面自由基浓度越高,自由基产物的稳定性受存储条件影响显著,自由基浓度越高的样品对应的接枝率也越高。In order to investigate the efficiency of atmospheric pressure plasma jet （APPJ）treatment on PET films in terms of inducing free radicals and subsequent grafting polymerization, Electron Spinning Spec- troscopy （ESR）technique is used in this paper to test and analyze the free radical outcomes and their aging phenomenon. The correlation between the ESR results and grafting ratio change trend for different samples is then discussed and analyzed. The results show that pure He gas APPJ is more easily to make free radi- cals generated on PET film and the free radical concentration is increased with the prolonged treatment duration. The stability of trapped free radicals on PET films varies obviously with different storage condi- tions. Samples with higher free radical concentration could also gain higher grafting ratio.

关 键 词：常压射流等离子体 PET膜 自由基 ESR 接枝率 

分 类 号：TB324[一般工业技术—材料科学与工程]