CAJ | 학술논문

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H e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。
위료고찰상압사류등리자체(APPJ)처리대 PET 막표면유도자유기급기인발접지공취반응적효능，채용전자자선공진기술(ESR)대 APPJ 처리전후PET 막표면생성적자유기급기쇠변행위진행측시분석，병여접지솔측시결과진행대비。결과표명：순H e기체적APPJ 처리경역인발PET 막표면생성자유기，처리시간월장，막표면자유기농도월고，자유기산물적은정성수존저조건영향현저，자유기농도월고적양품대응적접지솔야월고。
In order to investigate the efficiency of atmospheric pressure plasma j et (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 du-ration.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.