| 有机硅偶联剂改性SiO_2作用机理研究 |
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| 引用本文： | 刘杰胜,张宗旺,郑雄贞,邹民虎,蔡振刚.有机硅偶联剂改性SiO_2作用机理研究[J].胶体与聚合物,2013,31(1):23-25. |
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| 作者姓名： | 刘杰胜 张宗旺 郑雄贞 邹民虎 蔡振刚 |
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| 作者单位： | 武汉工业学院土木工程与建筑学院 武汉430023 |
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| 基金项目： | 湖北省住房与城乡建设厅科研项目 |
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| 摘 要： | 采用有机硅偶联剂对SiO2进行改性,并用红外光谱进行了表征。结果表明:硅烷偶联剂与SiO2表面的大部分羟基发生了化学反应,经改性后的SiO2,活化指数大大提高,且偶联剂占SiO2的最佳用量为7%。结合红外光谱分析结果和偶联剂分子结构,推断出在无水和有水条件下,偶联剂改性SiO2化学反应机理;结合改性过程中可能发生的化学反应,建立改性SiO2的结构模型。
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| 关 键 词： | 填料 改性 机理 模型 |
Research on the Mechanism of Silica Modified by Coupling Agent |
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| LIU Jiesheng
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ZHANG Zongwang
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ZHENG Xiongzhen
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ZOU Minhu
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CAI Zhengang.Research on the Mechanism of Silica Modified by Coupling Agent[J].Chinese Journal of Colloid and Polymer,2013,31(1):23-25. |
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| Authors: | LIU Jiesheng ZHANG Zongwang ZHENG Xiongzhen ZOU Minhu CAI Zhengang |
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| Affiliation: | (School of Civil Engineering and Architecture Wuhan Polytechnic University,Wuhan 430023) |
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| Abstract: | The silica was modified by silane coupling agent, and the surface structure was characterized by FT-IR. Results showed that the numbers of active OH group on the surface of silica decreased after the modification. The active index of modified SiO2 increased greatly and the optimal content of silane coupling agent is 7%. The reaction mechanism was obtained on the basis of the FT-IR results and the structure of the silane coupling agent. Also, the structure model of modified SiO2 was formulated. |
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| Keywords: | SiO2 Modification Mechanism Model |
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