硅烷
吸附
X射线光电子能谱
差速器(机械装置)
材料科学
高分辨率
化学工程
化学
复合材料
硅烷
物理化学
物理
热力学
地质学
工程类
遥感
作者
Frank R. Jones,James Thomason,X.M. Liu
出处
期刊:BRILL eBooks
[Brill]
日期:2011-04-01
卷期号:: 29-38
被引量:2
标识
DOI:10.1163/ej.9789067644525.i-410.17
摘要
γ-aminopropyltriethoxysilane (APS), γ-mercaptopropyltrimethoxysilane (MPS) and their mixture have been adsorbed onto acid-treated model E-glass fibres from aqueous solution with different concentrations. High resolution X-ray photoelectron spectroscopy (XPS) has been employed to characterize APS and MPS single silane coatings and the selective adsorption of APS/MPS mixed silane coating. It is found that the Si contribution from the silane can be distinguished from the Si contribution from the acid-treated E-glass fibres by fitting Si2p1/2 and Si2p3/2 peaks with components for CSiO3 and SiO4 environments. The adsorption isotherms of APS and MPS have been obtained by comparing the atomic concentrations of N, S and CSiO3 groups. APS and MPS are equally adsorbed from 0.1% APS/MPS mixed silane solution, however, MPS dominates the deposit on model E-glass fibres to a depth corresponding to the take-off-angle of 45o when it is adsorbed from 0.5% and 1.0% APS/MPS mixed silane solutions.
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