| 环氧树脂增强SiO2气凝胶复合材料的制备 |
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| 引用本文： | 高淑雅,孔祥朝,吕磊,陈维铅.环氧树脂增强SiO2气凝胶复合材料的制备[J].西北轻工业学院学报,2012(1):1-3,7. |
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| 作者姓名： | 高淑雅 孔祥朝 吕磊 陈维铅 |
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| 作者单位： | 陕西科技大学材料科学与工程学院 |
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| 基金项目： | 国际合作项目(2009DFR50520) |
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| 摘 要： | 以正硅酸乙酯（TEOS）为硅源，环氧树脂为增强相，采用溶胶一凝胶法常压制备了环氧树脂增强Si02气凝胶复合材料，研究了pH值、EtoH和环氧树脂含量与复合材料结构、密度的关系；采用SEM检测手段对复合材料断面的微观形貌进行了测试；采用TG-DSC进行了试样热分析，并采用阿基米德法测定了其密度．结果表明，加入环氧树脂后，气凝胶结构变化较大，而且乙醇、环氧树脂用量以及pH值对TEos的水解缩聚反应有较大影响；材料在600℃以下具有良好的稳定性．
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| 关 键 词： | SiO2气凝胶 环氧树脂增强 溶胶-凝胶 常压干燥 |
PREPARATION OF SiO2 AEROGELS COMPOSITE REINFORCED BY EPOXY RESIN |
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| GAO Shu-ya,KONG Xiang-zhao,LV Lei,CHEN Wei-qian.PREPARATION OF SiO2 AEROGELS COMPOSITE REINFORCED BY EPOXY RESIN[J].Journal of Northwest University of Light Industry,2012(1):1-3,7. |
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| Authors: | GAO Shu-ya KONG Xiang-zhao LV Lei CHEN Wei-qian |
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| Affiliation: | (School of Materials Science and Engineering,Shaanxi University of Science & Technology,Xi′an 710021,China) |
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| Abstract: | High malleable silica aerogels composites were synthesized via sol-gel and ambient drying process using tetraethoxysilane(TEOS) as precursor,epoxy resin as reinforcement.The relationship between the structure,density of silica aerogels composite and the pH,the dosage of ethanol and epoxy were investigated.The microstructure of the composites was characterized by SEM analyses,the thermal properties were characterized by TG-DSC analyses,and the density was tested by the Archimedean method.The results showed that the structure of aerogels changed a lot with loading epoxy resin,while the dosage of the ethanol,epoxy resin and pH had important effects on hydroxylation and condensation reactants of TEOS.Silica aerogels composite had thermal steady under 600℃. |
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| Keywords: | silica aerogels epoxy resin reinforced sol-gel ambient drying |
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