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2μm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。
A dense and uniform SiON coating with thickness of 2μm 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-1R 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℃ exhibits laydrophilic property. The obtained SiON coating shows good anti-corrosion, anti-oxidation and high temperature resistant properties as well as good protection of metal substrate.
出处
《涂料工业》
CAS
CSCD
北大核心
2017年第7期1-5,共5页
Paint & Coatings Industry
基金
国家自然科学基金项目(51302270)
关键词
全氢聚硅氮烷
SiON涂层
耐高温
抗氧化性
perhydropolysilazane （PHPS）
silicon oxynitride
coating
high temperatureresistant
oxidation resistant
