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| 改性剂对硅胶整体柱结构性能的影响 | |
| 引用本文： | 杨静,高文惠,杨更亮,刘海燕,陈义. 改性剂对硅胶整体柱结构性能的影响[J]. 河北大学学报(自然科学版), 2004, 24(3): 274-276. DOI: 10.3969/j.issn.1000-1565.2004.03.013 |
| 作者姓名： | 杨静 高文惠 杨更亮 刘海燕 陈义 |
| 作者单位： | 河北大学,化学与环境科学学院,河北,保定,071002;河北大学,化学与环境科学学院,河北,保定,071002;河北科技大学,生物工程与科学学院,河北,石家庄,050018;河北大学,化学与环境科学学院,河北,保定,071002;中国科学院化学研究所分子科学中心,北京,100080;中国科学院化学研究所分子科学中心,北京,100080 |
| 基金项目： | 国家自然科学基金资助项目(20375010)，河北省自然科学基金资助项目(202096)，科学技术部基金资助项目(2002CB313803)，科学院项目(KJCX2-SW-H06)，教育部优秀青年教师资助计划. |
| 摘 要： | 研究了改性剂对硅胶整体柱结构性能的影响.通过采用改进的溶胶-凝胶技术,以四甲氧基硅烷和聚乙二醇为原料,表面活性剂和变形抑制剂等为改性剂,使用特殊处理手段有效抑制柱体开裂和变形弯曲现象,同时极大缩短了干燥时间;探讨了原料比例和不同制孔剂浓度对整体柱结构的影响.制备出的硅胶整体柱具有通孔和中孔双孔结构,空隙率高,通透性好. |
| 关 键 词： | 硅胶整体柱 溶胶-凝胶技术 中孔 通孔 |
| 文章编号： | 1000-1565(2004)03-0274-03 |
| 修稿时间： | 2003-05-28 |
Research of the Influence of Modifier on Monolithic Silica Column |
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| YANG Jing,GAO Wen-Hui. Research of the Influence of Modifier on Monolithic Silica Column[J]. Journal of Hebei University (Natural Science Edition), 2004, 24(3): 274-276. DOI: 10.3969/j.issn.1000-1565.2004.03.013 | |
| Authors: | YANG Jing GAO Wen-Hui |
| Affiliation: | YANG Jing~1,GAO Wen-Hui~ |
| Abstract: | Monolithic silica column was prepared by an improved sol-gel technology with tetramethoxysiane and polyethylene glycol as the matrix materials and the influence of modifiers on monolithic silica column was investigated. By using modifiers, such as surfactant and a deformation suppressant, and a particular treatment procedure, the problems of crack and deformation in preparing the column were solved and the drying time was shortened greatly. The influence of different TMOS/PEG ratio and concentration of porogenic diluent on monolithic silica column was also discussed. The results showed that the column prepared possessed bimodal pores structures with micrometer-size co-continuous through-pores and silica skeletons which have nanometer-size mesopores, traight appearance, high porosity and mechanical strength and good chemical stability. |
| Keywords: | monolithic silica column sol-gel technology mesopore through-pore |
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