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无机纤维毡/SiO2气凝胶隔热材料的制备及性能
引用本文:卞立静,王晓楠,李浩秋,陈岩,田运齐. 无机纤维毡/SiO2气凝胶隔热材料的制备及性能[J]. 中国材料科技与设备, 2013, 0(3): 16-18,24
作者姓名:卞立静  王晓楠  李浩秋  陈岩  田运齐
作者单位:辽宁师范大学功能材料化学研究所,辽宁大连116029
基金项目:国家自然科学基金资助项目(212730g9)
摘    要:以无机纤维毡为增强材料,正硅酸乙酯为硅源,采用溶胶一凝胶技术制备了无机纤维毡/Si02气凝胶隔热材料。研究了无机纤维毡的类型、密度等因素对复合材料的影响。结果表明:无机纤维毡/siO2气凝胶复合材料的隔热性能优,导热系数仅略高于纯Si02气凝胶,强度则有显著提高。

关 键 词:SiO2气凝胶  隔热材料  溶胶一凝胶

Synthesis and Crystal Structure of Metal--Organic Framework of Magnesium 2, 5--dihydroxy Benzene Dicarboxylic Acid
Affiliation:BIAN Li--jing , WANG Xiao--nan, LI Hao--qiu, CHEN gan, TIAN Yun--qi (Institute of Chemistry for Functionalized Materials , College of Chemistry and Chemical Engineering , Liaoning Normal University, Liaoning, Dalian, 116029, China)
Abstract:A novel metal- organic framework (MOF) of magnesium 2, 5- dihydroxybenzenediearboxylic acid [Mg (DHBDC) (DMF)z-] (1) was synthesized by reaction of the free ligand DHBDC with Mg (NO3)2 .6H20 in a mixed solvent of DMF/ETOH containing lithium hydroxide. The compound 1 was characterized by X--ray single crystal and X--ray powder diffraction, elemental analysis, fourier transform infrared spectorscopy (FTIR) and thermogravimetric analysis (TGA).
Keywords:Metal--organic framework  2, 5--dihydroxyterephthalic acid  Mixed solvent
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