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加成型有机硅反应过程的实时监测 被引量:1
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作者 谭必恩 朱波 +4 位作者 张廉正 郝志刚 Zhu Bo Zhang Lianzheng Hao Zhigang 《合成橡胶工业》 EI CAS CSCD 北大核心 2001年第2期103-104,共2页
用实时傅里叶变换红外光谱仪(FTIR)对乙烯基硅橡胶和含氢硅油的加成聚合过程进行了表征,得到了基团浓度消耗比随反应时间变化的曲线。结果表明,在反应过程中,硅氨基与乙烯基的浓度减少至非线性关系,这可能是硅氢基在反应过程... 用实时傅里叶变换红外光谱仪(FTIR)对乙烯基硅橡胶和含氢硅油的加成聚合过程进行了表征,得到了基团浓度消耗比随反应时间变化的曲线。结果表明,在反应过程中,硅氨基与乙烯基的浓度减少至非线性关系,这可能是硅氢基在反应过程中与空气中的物质进行了反应,从而在消耗量上较乙烯基多的缘故。 展开更多
关键词 乙烯基硅橡胶 含氢硅油 加成型有机硅 硫化 傅里叶变换红外光谱 微观结构 实时监测
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Novel accelerated corrosion test for LY12CZ and LC4CS aluminum alloys
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作者 蔡健平 刘明 《中国有色金属学会会刊:英文版》 CSCD 2006年第A03期1415-1418,共4页
A new accelerated corrosion test—comprehensive environmental test (CET) was developed in order to estimate the outdoor corrosion of aluminum alloys in marine environment. The environmental characteristics in CET were... A new accelerated corrosion test—comprehensive environmental test (CET) was developed in order to estimate the outdoor corrosion of aluminum alloys in marine environment. The environmental characteristics in CET were studied by atmospheric corrosion monitor (ACM), and the morphology of corrosion product was observed by SEM. The correlation between the accelerated corrosion tests and outdoor exposure was discussed. The results show that the anti-corrosion ranking for LY12CZ, LC4CS, clad LY12CZ, and clad LC4CS in CET is the same as that of the alloys exposed outdoor, and ACM study shows that CET demonstrates the same environmental characteristics as that exposed outdoor. CET is a more accurate accelerated corrosion test, and a mathematical relation was obtained to describe the relation between CET and outdoor test. 展开更多
关键词 金属腐蚀 铝合金 大气腐蚀 海洋环境
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