期刊
SURFACE AND INTERFACE ANALYSIS
卷 38, 期 8, 页码 1186-1197出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/sia.2363
关键词
SIMS; principal component analysis; polycarbonate; oxygen plasma; surface modification
The effects of oxygen plasma treatment and the subsequent air exposure on the surface composition and properties of bisphenol A polycarbonate (BPA-PC) were analysed by X-ray photoelectron spectroscopy (XPS), ellipsometry, static time-of-flight secondary ion mass spectrometry (ToF-SIMS) with principal component analysis (PCA) and nanoindentation using an atomic force microscope (AFM). PICA showed systematic changes in the film chemistry after short treatment times (0.1 s), with the main sites of attack being the carbonate and aromatic ring structure. On the basis of this multitechnique analysis, it was unambiguously determined that extended oxygen plasma treatment times resulted in the formation of low-molecular-weight material (LMWM) within the first 50 nm on the surface, and not in a cross-linked skin as has been proposed by other researchers. The study shows that controlled surface modification of BPA-PC polymers is possible, allowing surface oxygen incorporation without degradation of the polymer structure. This result is relevant for improved adhesion of coatings applied to BPA-PC polymers. Copyright (C) 2006 John Wiley & Sons, Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据