Organic Additive Implantation onto Cement Hydration Products
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第3期
论文作者：朱吉鹏 李宗津 YANG Ruochong ZHANG Yamei
文章页码：527 - 533
摘 要：In polymer modified cementitious materials, it is hard to set up a chemical connection between the added polymer and the cement moiety. In this study FS（functional silane） was adopted to form this connection as a bridge component which has the functional group forming bonds with polymer. To testify the connection between FS and cement moiety, Q2/Q1 ratio（Qx: intensity ratio） investigation was carried out by the means of quantitative solid state 29Si MAS NMR. The results show that the Q2/Q1 ratio has increased with the addition of FS which indicates that the silicon chain length has increased, and the quantity of silicon atoms at site of Q2, chain site, has enhanced, showing that the silicon atom of FS has connected to the silicon chain of cement moiety by the bond "-Si-O-Si-" formation.
朱吉鹏1，李宗津1，YANG Ruochong2，ZHANG Yamei3
1. Department of Civil Engineering, The Hong Kong University of Science & Technology2. School of Transportation,Southeast University3. School of Materials Science and Engineering, Southeast University
摘 要：In polymer modified cementitious materials, it is hard to set up a chemical connection between the added polymer and the cement moiety. In this study FS（functional silane） was adopted to form this connection as a bridge component which has the functional group forming bonds with polymer. To testify the connection between FS and cement moiety, Q2/Q1 ratio（Qx: intensity ratio） investigation was carried out by the means of quantitative solid state 29Si MAS NMR. The results show that the Q2/Q1 ratio has increased with the addition of FS which indicates that the silicon chain length has increased, and the quantity of silicon atoms at site of Q2, chain site, has enhanced, showing that the silicon atom of FS has connected to the silicon chain of cement moiety by the bond "-Si-O-Si-" formation.
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