SURFACE CHARACTERIZATION OF PLASMA TREATED CARBON-FIBERS AND ADHESION TO A THERMOPLASTIC POLYMER

被引:19
作者
COMMERCON, P
WIGHTMAN, JP
机构
[1] Chemistry Department, Virginia institute for Material Systems, Virginia Polytechnic Institute and State University, Blacksburg
关键词
CARBON FIBERS; PLASMA TREATMENT; FIBER-MATRIX ADHESION; THERMOPLASTIC MATRIX; MICROBOND PULL-OUT TEST; DYNAMIC CONTACT ANGLE; X-RAY PHOTOELECTRON SPECTROSCOPY;
D O I
10.1080/00218469208031267
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The surface chemistry of IM7 carbon fibers was characterized by x-ray photoelectron spectroscopy (XPS). The fiber surface energetics were determined from a two-liquid tensiometric method. The adhesion between as-received and plasma-treated carbon fibers and polyethersulfone (PES) was measured by the microbond pull-out test. The surface characterization techniques showed that the effect of any plasma treatment is attained within less than 15 seconds. It was found that both argon and air plasmas increased the oxidation state of the fiber surface and that they reduced the dispersive component (γds) of the fiber surface free energy considerably. The ammonia plasma treatment resulted in a cleaning of the surface. This plasma treatment was also effective in improving the fiber/matrix adhesion of quenched samples A similar adhesion enhancement between as-received fibers and PES is obtained by annealing the samples above the Tg of the polymer. The air plasma treatment did not have any significant effect on the fiber/matrix adhesion. © 1992, Taylor & Francis Group, LLC. All rights reserved.
引用
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页码:55 / 78
页数:24
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