Mechanisms of atmospheric pressure plasma treatment of BOPP

被引：5

作者：

Sawtell, David A. G. ^{[1
]}

Abd-Allah, Zaenab ^{[1
]}

Bradley, James W. ^{[2
]}

West, Glen T. ^{[1
]}

Kelly, Peter J. ^{[1
]}

机构：

[1] Manchester Metropolitan Univ, Fac Sci & Engn, Manchester M1 5GD, Lancs, England

[2] Univ Liverpool, Dept Elect Engn & Elect, Liverpool, Merseyside, England

来源：

PLASMA PROCESSES AND POLYMERS | 2018年 / 15卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

dielectric barrier discharges (DBD); poly(propylene) (PP); polymer modification; surface modification; SURFACE MODIFICATION; GLOW-DISCHARGE; AIR CORONA; POLYPROPYLENE; NITROGEN; POLYOLEFINS; TRANSITION; OXIDATION; POLYMERS; OXYGEN;

D O I：

10.1002/ppap.201700051

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Surface energy increase of polymers with plasma treatment is an industrially significant process. The mechanisms behind this process are little understood, with work addressing the water contact angle decrease with treatment and changes in surface chemistry. Work presented here addresses the mechanism of this surface energy increase, by using crystalline biaxially orientated polypropylene (BOPP) films to identify plasma induced structural changes. Increased crystallinity of the BOPP films were observed by ATR-FTIR spectroscopy, indicating preferential oxidation of amorphous regions of the BOPP films by the plasma. This crystal structure change correlates with XRD peak shifts, implying relaxation of crystal regions into regions previously occupied by amorphous BOPP. The trend in surface energy increases also correlates with the effective increase in crystallinity.

引用

页数：7

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