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DBD等离子体枪聚合SiOx薄膜用于金属表面防腐性能研究 被引量:2
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作者 韩尔立 陈强 +2 位作者 张跃飞 陈飞 葛袁静 《机械设计与研究》 CSCD 北大核心 2006年第2期86-88,共3页
用高频介质阻挡放电(DBD)等离子体枪,以六甲基二硅氧烷为单体,在大气下于铸铁表面聚合S iOx薄膜。采用红外光谱(FTIR)分析了等离子体功率对聚合膜的结构和沉积速度等影响、SEM对试样表面进行观察。实验发现铸铁表面沉积S iOx薄膜呈现致... 用高频介质阻挡放电(DBD)等离子体枪,以六甲基二硅氧烷为单体,在大气下于铸铁表面聚合S iOx薄膜。采用红外光谱(FTIR)分析了等离子体功率对聚合膜的结构和沉积速度等影响、SEM对试样表面进行观察。实验发现铸铁表面沉积S iOx薄膜呈现致密纳米棒状交联结构,并随着厚度的增加粒子间出现团聚现象。在0.5%NaC l溶液中的腐蚀实验表明,S iOx薄膜能显著的提高铸铁的防腐性能,而通过在5%NaC l溶液中进行的动电位极化特性曲线计算得到,铸铁的腐蚀速率为4.72E-3mm/a,约为纯铸铁的1/15。 展开更多
关键词 DBD等离子体枪 大气压聚合 SIOX薄膜 防腐
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Synthesis of PPy-like Nanocrystallines by Oriented Plasma Polymerization at Atmospheric Pressure
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作者 方忻生 郭颖 +1 位作者 徐金州 张菁 《Journal of Donghua University(English Edition)》 EI CAS 2006年第3期64-66,共3页
Polymeric polypyrrole-like (PPy-llke) nanocrystallines were fast synthesized through oriented plasma polymerization at atmospheric pressure and room temperature. The effects of discharge power on the nanocrystalline... Polymeric polypyrrole-like (PPy-llke) nanocrystallines were fast synthesized through oriented plasma polymerization at atmospheric pressure and room temperature. The effects of discharge power on the nanocrystalline morphology were investigated. Larger power tends to produce longer nanocrystallines. 3 mm long nanowires were produced at the largest power in our experiment. TEM image and the sharp electronic diffraction spots in SAD suggest that the nanoparticles have a single crystal phase. The chemical structure of the nanocrystalline has been studied through FTIR, EDX etc. This novel polymerization method could have great applications in fabricating functional polymeric nanocrystallines. 展开更多
关键词 atmospheric oriented plasma polymerization pol ypyrrole PP y) nanocrysllines.
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