摘要
目的研究低密度聚乙烯(LDPE)薄膜经低温等离子体处理前后,表面性能的变化情况。方法采用不同的处理条件,对LDPE进行低温等离子体处理,并对比LDPE薄膜处理前后的表面形貌、表面接触角及剥离强度。结果采用空气为处理气氛时,在功率44 W、真空度60 Pa的条件下处理30 s,LDPE薄膜的静态接触角从处理前的101°降到13.5°;等离子体处理后的LDPE薄膜在1 h内,接触角会迅速上升到74°,失去等离子体处理的效果。结论对于处理气氛,空气比N2和CO2的处理效果更好;等离子体处理后的LDPE薄膜具有明显的时效性,应立即进入下道工序。
Objective To study the change of the surface properties of low-density polyethylene （ LDPE ） film treated by low-temperature plasma. Methods The LDPE film was treated by low-temperature plasma under different treating conditions to compare the surface morphology, surface contact angle and peel strength of the LDPE film before and after treatment. Results Treating LDPE film using air as treatment atmosphere with 44 W, 30 s, 60 Pa parame- ters decreased its static contact angle from 101° to 13.5°. The contact angle of LDPE film quickly rose to 74° within one hour after low-temperature plasma treatment and lost the plasma treatment effect. Conclusion The air was a bet- ter treatment atmosphere than N2 and CO2. The timeliness of plasma treated LDPE film was obvious and should enter the next process immediately after low-temperature plasma treatment.
出处
《表面技术》
EI
CAS
CSCD
北大核心
2013年第6期55-58,82,共5页
Surface Technology
基金
航空科学基金(20120956005)~~
关键词
低密度聚乙烯
低温等离子体处理
改性
剥离强度
low density polyethylene
low-temperature plasma treatment
modification
peel strength
