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Initiation of Single-part Epoxy in Cementitious System
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作者 朱吉鹏 LI Zongjin ZHANG Yamei 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2016年第3期713-716,共4页
In order to make clear the interaction mechanism of single component epoxy in cementitious environment, the interaction between epoxy resin and active silanol, epoxy resin and alkali was investigated From solid-state ... In order to make clear the interaction mechanism of single component epoxy in cementitious environment, the interaction between epoxy resin and active silanol, epoxy resin and alkali was investigated From solid-state 13C NMR and FT-IR tests, it is confirmed that silanol group can initiate epoxy resin. Test results have also revealed that alkali as the dominant product of cement hydration can open the epoxide ring making epoxy harden. 展开更多
关键词 cementitious system EPOXY hardener-free
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Initiation of Single-part Epoxy in Cementitious System-Ⅱ
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作者 朱吉鹏 LI Zongjin ZHANG Yamei 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2016年第5期1043-1047,共5页
Single-component epoxy cement system is an interesting material used in construction engineering, and it is different from traditional two-component epoxy-cement system. We studied the interaction mechanism of single-... Single-component epoxy cement system is an interesting material used in construction engineering, and it is different from traditional two-component epoxy-cement system. We studied the interaction mechanism of single-component epoxy-cement system only in the range of macro mechanical performances, and used the cement and single-component epoxy directly to investigate the interaction between the both. Solidstate 13 C NMR, FT-IR, Raman spectroscopy and XRD were employed to trace the change of the system. Results showed that the epoxide rings in cementitious environment had been opened by cement ingredients. It was true that single-component epoxy could be used as reactive additive in cementitious system. 展开更多
关键词 modified cementitious system epoxy hardener-free initiation epoxide ring
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