摘要： 以全氢聚硅氮烷为原料，经加热固化在金属表面制备得到致密均匀、厚度为 ２ μｍ 左右的ＳｉＯＮ 涂层。 研究了全氢聚硅氮烷的固化过程，发现随固化温度升高，水解氧化反应程度提高，随之结构中Ｓｉ—Ｎ、Ｓｉ—Ｈ及Ｎ—Ｈ强度下降，Ｓｉ—Ｏ强度升高。 所得到的涂层硬度达到 ９Ｈ 以上，与金属基材之间结合良好，附着力 ０ 级。 随固化温度升高，涂层表面润湿性能也随之变化，４００ ℃固化得到的涂层表现为亲水性。 ＳｉＯＮ 涂层具备较好的防腐蚀性能和耐高温抗氧化性能，对金属基材具有良好的保护作用，且随着固化温度升高，防腐蚀性能和耐高温性能随之增强。
关键词:
全氢聚硅氮烷,
SiON涂层,
耐高温,
抗氧化性
Abstract: A dense and uniform SiON coating with thickness of 2 um has been prepared by thermal curing of perhydropolysilazane( PHPS. The study of conversion process of PHPS has shown that the peak intensity of Si-N, Si-H and N-H bond is decreased while the peak in- tensity of Si-o bond is enhanced with the increase of curing temperature as observed by the FT-IR spectra. The pencil hardness of SiON coating reaches 9H and the adhesion grade of SiON coating to metal substrate reaches grade 0. With the increase of curing temperature, the wetting property of the coating is changed. The SiON coating obtained at 400 C exhibits hy-drophilie property. The obtained SiON coating shows good anti-corrosion anti-oxidation and high temperature resistant properties as well as good protection of metal substrate.
Key words:
perhydropolysilazane (PHPS),
silicon oxynitride,
coating: high temperature resistant,
oxidation resistant
梁倩影１, ２, 张宗波１, 黄文文１, 周晓龙１, 徐彩虹１, ２. 全氢聚硅氮烷衍生法制备耐高温抗氧化 SiON 涂层[J]. 涂料工业, 2017, 47(7): 1-5.
Liang Qianying, Zhang Zongbo, Huang Wenwen, Zhou Xiaolong, Xu Caihong,. Perhydropolysilazane Derived High-Temperat Resistant and Anti-Oxidation SiON Coatings[J]. Paint & Coatings Industry, 2017, 47(7): 1-5.