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溶胶-凝胶法制备HEC/SiO_2杂化材料的工艺研究 被引量:2

Study on preparation of HEC/SiO2 organic/inorganic hybrid by Sol-Gel process
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摘要 以羟乙基纤维素(HEC)、正硅酸乙酯(TEOS)为原料,采用溶胶-凝胶技术合成了HEC/SiO2有机-无机杂化材料。通过探讨水硅比、HEC含量、溶剂量、干燥控制化学添加剂用量、温度等工艺因素对凝胶化过程,特别是材料干燥体积收缩的影响,得出在本实验条件下合成HEC/SiO2有机-无机杂化材料的优化工艺条件。利用红外吸收光谱、紫外-可见光透射光谱以及扫描电子显微镜等测试手段对合成的HEC/SiO2有机-无机杂化材料进行表征。结果表明,HEC作为有机分散相已经均匀地分散到SiO2基相中,制备的HEC/SiO2有机-无机杂化材料透明,无分相,并可能形成了新的化学键。 Hydroxyethyl cellulose and tetraethyl orthosilicate are chosen as the stuffs for the reaction, and HEC/SiO2 organic/inorganic hybrid are prepared by Sol-Gel process. By discussing the factors that can effect on the reaction, especially the volume shrinkage of the material, such as the rate of water with silicon dioxide, the thickness of HEC, the dosage of ethanol and formamide and the reaction temperature and so on, the authors obtain the optimal condition that HEC/SiO~ hybrid can be synthesized and characterize the HEC/SiO2 hybrid by infrared absorption spectrum (IR), ultraviolet- visible spectroscopy(UV) and the scanning electron microscope(SEM). The result indicates that the HEC, a disperse phase in the hybrid materials, is dispersed in the silicon dioxide substrates on molecular level evenly. Also, the authors find that there may be some new chemical bonds appearing in the HEC/SiO2 hybrid and there are chemically stable under the irradiation of ultraviolet.
出处 《成都理工大学学报(自然科学版)》 CAS CSCD 北大核心 2007年第3期374-378,共5页 Journal of Chengdu University of Technology: Science & Technology Edition
基金 国家"十五"科技攻关计划重点项目(2004BA810B02)
关键词 溶胶-凝胶法 杂化 HEC/SiO2 杂化材料 Sol-Gel process hybrid complex HEC/SiO2 organic/inorganic hybrid
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  • 1吴利民,段先健,杨本意,王跃林.气相二氧化硅的制备方法及其特性[J].有机硅氟资讯,2004(6):24-26. 被引量:8
  • 2王志成,平琳,张慧勤.沉淀法纳米白炭黑的制备[J].有机硅材料,2005,19(2):23-25. 被引量:9
  • 3陆静娟,杨辉,郭兴忠,张俊,张瑞捷.硅铝溶胶改性甲基硅树脂耐划伤薄膜[J].陶瓷学报,2006,27(1):63-67. 被引量:10
  • 4Larry L H,Jon K W.The sol-gel process[J].Chem Rev,1990,90:33-70.
  • 5Stober W,Fink A,Bohn E.Controlled growth of monodisperse silica spheres in the micron size range[J].J Colloid Int Sci,1968,26:62.
  • 6Brinker C J,Keefer K D,Sehaefer D W,et al.Sol-Gel transition in simple silicates Ⅱ[J].Journal of Non-Crystalline solids,1984,63:45-59.
  • 7Brinker C J,Keefer K D,Sehaefer D W,et al.Sol-Gel transition in simple silicate[J].Journal of Non-Crystalline solids,1982,48:47-64.
  • 8Schmidt H,Scholze H,Kaiser A.Principles of hydrolysis and condensation reaction of alkoxysilanes[J].Journal of Non-Crystalline Solids,1984,63:l-11.
  • 9Brinker C J and Seherer G W.Sol→gel→glass:I.Gelation and gel strueture[J].Journal of Non-Crystalline Solids,1985,70:301-322.
  • 10Jerzy Chrusciel,Ludomir Slusarski.Synthesis of nanosilica by the sol-gel method and its activity toward polymers[J].Materials Science,2003,21(4):461-469.

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