无机纤维毡/SiO2气凝胶隔热材料的制备及性能 |
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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 |
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作者姓名: | 卞立静 王晓楠 李浩秋 陈岩 田运齐 |
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作者单位: | 辽宁师范大学功能材料化学研究所,辽宁大连116029 |
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基金项目: | 国家自然科学基金资助项目(212730g9) |
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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。
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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 |
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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) |
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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). |
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Keywords: | Metal--organic framework 2, 5--dihydroxyterephthalic acid Mixed solvent |
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