摘要
用常压等离子体射流处理不同含水率的聚乙烯醇(PVA)薄膜,通过扫描电镜(SEM)观察薄膜表面形态,并用红外光谱测试仪(FTIR)、X光电子能谱仪(XPS)、X射线衍射仪(XRD)分析了等离子体处理前后含水率为1.85%(1.85%MC)及41.33%(41.33%MC)两种薄膜化学及结晶结构的变化。结果表明,水分可加速氦气/氧气等离子体对PVA刻蚀及氧化,其中刻蚀速率达0.68μm/min,氧含量从30.8%提高到34.8%;经过处理的薄膜结晶度增加了48%。
Poly（vinyl alcohol） （PVA） films with moisture content 1.85 % and 41.33 % were exposed to atmospheric pressure plasma jet（APPJ）. The changes in surface morphology, chemical and crystal structures of the films were observed using SEM, FTIR, XPS, and XRD. It showed that the presence of water significantly increased the etching and oxidation of PVA film during He/O2 plasma treatment. An etching rate of 0. 68μm/min and an oxygen content of 34. 8 % were observed. Meanwhile, the degree of crystallinity was enhanced by 48 %.
出处
《中国塑料》
CAS
CSCD
北大核心
2009年第5期66-69,共4页
China Plastics
关键词
常压等离子体
水分
聚乙烯醇
表面形态
atmospheric pressure plasma
moisture
poly（vinyl alcohol）
surface morphology
