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材料工程  2018, Vol. 46 Issue (2): 22-26    DOI: 10.11868/j.issn.1001-4381.2016.000958
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
超临界干燥制备PSNB气凝胶及其超疏水性能研究
刘洪丽1, 邓青沂1, 褚鹏2
1. 天津城建大学 材料科学与工程学院, 天津 300384;
2. 天津市建筑科学研究院有限公司 建材研究所, 天津 300193
Preparation and Hydrophobic Properties of Polyborosilazane Aerogels via CO2 Supercritical Drying
LIU Hong-li1, DENG Qing-yi1, CHU Peng2
1. School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, China;
2. Research Institute of Building Materials, Tianjin Research Institute of Building Science Co., Ltd., Tianjin 300193, China
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摘要 以聚硼硅氮烷为原料,二乙烯苯为交联剂,通过硅氢加成反应结合超临界干燥工艺制备聚硼硅氮烷气凝胶。利用红外光谱、扫描电镜、比表面积与孔径分析仪对所制备气凝胶的形成及微观结构进行了分析,并通过接触角仪对样品的疏水性能进行了研究。结果表明:聚硼硅氮烷和二乙烯苯通过硅氢加成反应制得聚硼硅氮烷气凝胶;所制备的气凝胶的比表面积为307~458cm2/g,孔体积为1.20~2.17cm3/g,孔径分布为2.0~100nm,是一种具有三维网状结构的介孔材料,并具有超疏水性能,且当起始溶剂体积分数为85%时,气凝胶疏水性能最佳,接触角为151.5°。
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刘洪丽
邓青沂
褚鹏
关键词 聚硼硅氮烷硅氢加成反应气凝胶二氧化碳超临界干燥疏水性    
Abstract:The polyborosilazane aerogels were prepared by hydrosilylation reaction using polyborosilazane as raw material with divinylbenzeneas crosslinking agent, and then dried by CO2 supercritical drying. Infrared spectroscopy, scanning electron microscopy, specific surface area and aperture analyzer,contact angle measurement were used to characterize the formation, microstructure and hydrophobic property of polyborosilazane aerogels. The results show that the polyborosilazane aerogels are prepared by hydrosilylation reaction using polyborosilazane with divinylbenzene; the specific surface areas of the resultant aerogels with three-dimensional network structure are in the range of 307-458cm2/g, which is a mesoporous material with superhydrophobic property. The pore volume is in the range of 1.20-2.17cm3/g and pore size is in the range of 2.0-100nm, and when the volume fraction of the starting solvent is 85%, the hydrophobic performance of polyborosilazane aerogels is the best, the water contact angle is 151.5°.
Key wordspolyborosilazane    hydrosilylation reaction    aerogel    CO2 supercritical drying    hydrophobic property
收稿日期: 2016-08-11      出版日期: 2018-02-01
中图分类号:  O648  
通讯作者: 刘洪丽(1971-),女,教授,博士,研究方向为绿色化学建材,联系地址:天津市西青区津静路26号天津城建大学材料学院(300384),lhlbh@163.com,1599411585@qq.com     E-mail: lhlbh@163.com,1599411585@qq.com
引用本文:   
刘洪丽, 邓青沂, 褚鹏. 超临界干燥制备PSNB气凝胶及其超疏水性能研究[J]. 材料工程, 2018, 46(2): 22-26.
LIU Hong-li, DENG Qing-yi, CHU Peng. Preparation and Hydrophobic Properties of Polyborosilazane Aerogels via CO2 Supercritical Drying. Journal of Materials Engineering, 2018, 46(2): 22-26.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.000958      或      http://jme.biam.ac.cn/CN/Y2018/V46/I2/22
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