低温等离子体处理条件对低密度聚乙烯薄膜表面性能的影响  

Effect of Low Temperature Plasma Treatment on the Surface Properties of LDPE Film

作　　者：王云英[1] 陈玉如[1] 孟江燕[1] 孙旭[1] 

机构地区：[1]无损检测技术教育部重点实验室(南昌航空大学),南昌330063

出　　处：《表面技术》2013年第6期55-58,82,共5页Surface Technology

基　　金：航空科学基金(20120956005)~~

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.

关 键 词：低密度聚乙烯 低温等离子体处理 改性 剥离强度 

分 类 号：TG174.444[金属学及工艺—金属表面处理] O484.4[金属学及工艺—金属学]