纺织学报 ›› 2020, Vol. 41 ›› Issue (08): 15-21.doi: 10.13475/j.fzxb.20191202007

• 纤维材料 • 上一篇    下一篇

等离子体处理对聚四氟乙烯膜粘接性能的影响

陈千1, 廖振1, 徐明2, 朱亚伟1,3()   

  1. 1.苏州大学 纺织与服装工程学院, 江苏 苏州 215021
    2.常州喜莱维纺织科技有限公司,江苏 常州 213125
    3.现代丝绸国家工程实验室, 江苏 苏州 215123
  • 收稿日期:2019-12-09 修回日期:2020-05-09 出版日期:2020-08-15 发布日期:2020-08-21
  • 通讯作者: 朱亚伟
  • 作者简介:陈千(1995—),男,硕士生。主要研究方向为高性能纺织品和材料。

Effect of plasma treatment on adhesion performance of polytetrafluoroethylene film

CHEN Qian1, LIAO Zhen1, XU Ming2, ZHU Yawei1,3()   

  1. 1. College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215021, China
    2. Changzhou Hi Levi Textile Technology, Co., Ltd., Changzhou, Jiangsu 213125, China
    3. National Engineering Laboratory for Modern Silk, Suzhou, Jiangsu 215123, China
  • Received:2019-12-09 Revised:2020-05-09 Online:2020-08-15 Published:2020-08-21
  • Contact: ZHU Yawei

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摘要：

为提高聚四氟乙烯(PTFE)膜的粘接性能,研究了氧气等离子体处理对PTFE膜剥离强度和水接触角的影响, 并比较了氧气、氮气和氩气等离子体处理PTFE膜粘接强度的差异,借助X射线光电子能谱仪、扫描电子显微镜和原子力显微镜测试了等离子体处理前后PTFE膜表面元素、形态和粗糙度的变化。结果表明:氮气等离子体处理的PTFE膜,其剥离强度较未处理的PTFE膜提高了539.8%,水接触角提高了11.4°,达120.4°;当放电量低于36 kJ 时,经氧气等离子体处理的PTFE膜剥离强度随放电量的增加呈指数增加,继续增加放电量时,PTFE膜表面形成了凹凸沟槽的荷叶形貌,该荷叶形貌决定了膜粘结性和疏水性的强弱。

关键词: 聚四氟乙烯膜, 等离子体处理, 膜改性, 粘结性, 表面刻蚀

Abstract:

In order to improve the adhesion performance of polytetrafluoroethylene (PTFE) film, this research studied the effect of oxygen plasma treatment on the stripping strength and water contact angle of the film surface, and compared the adhesive strength of films treated by oxygen, nitrogen and argon plasma. In addition, the changes of surface element, morphology and roughness were measured by means of X-ray photoelectron spectroscopy, scanning electron microscopy and atomic force microscopy. The results show that the stripping strength is increased by 539.8% and the contact angle is increased by 11.4° (up to 120.4°) when the PTFE film is treated with nitrogen plasma. When the discharge magnitude is below 36 kJ, the stripping strength of the oxygen-treated PTFE film increases exponentially with the increase of discharge power. When the discharge magnitude is higher, the pattern of lotus leaf with the concave and convex grooves is formed on the PTFE film surface, and the shape of lotus leaf of PTFE film determines the film adhesion and hydrophobicity.

Key words: polytetrafluoroethylene film, plasma treatment, film modification, adhesion performance, surface etching

中图分类号: 

  • TM89

表1

PTFE膜的等离子体处理条件"

样品
编号		 气体
种类		 功率/
W		 时间/
min		 气体流量/
(cm3·min-1)		 放电量/
kJ
1# O2 300 2 5 36.0
2# N2 300 2 5 36.0
3# Ar 300 2 5 36.0
4# O2 40 2 5 4.8
5# O2 300 2 40 36.0
6# O2 300 1 5 18.0
7# O2 300 2 10 36.0
8# O2 300 2 20 36.0
9# O2 300 2 30 36.0
10# O2 300 2 60 36.0
11# O2 70 2 5 8.4
12# O2 100 2 5 12.0
13# O2 200 2 5 24.0
14# O2 300 3 5 54.0
15# O2 300 4 5 72.0
16# O2 300 5 5 90.0

图1

不同气体等离子体处理PTFE膜的XPS图"

图2

氮气等离子体处理PTFE膜的C1s分峰图"

图3

不同放电量下氧气等离子体处理PTFE膜的扫描电镜照片(×25 000)"

图4

不同气体等离子体处理PTFE膜的扫描电镜照片(×25 000)"

图5

不同气体等离子体处理PTFE膜的AFM照片"

图6

处理功率对PTFE复合膜剥离强度和接触角的影响"

图7

氧气流量对PTFE复合膜剥离强度和接触角的影响"

图8

处理时间对PTFE复合膜剥离强度和接触角的影响"

图9

不同气体等离子体处理对PTFE复合膜剥离强度和接触角的影响"

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