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溶剂类型对GAP凝胶性能的影响

Keywords: GAP凝胶,溶剂极性,热性能,交联密度,凝胶质量分数

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Abstract:

采用溶胶-凝胶法分别在5种溶剂中制备出了GAP凝胶,利用红外光谱、TG、DSC对其结构及热性能进行分析,并测试了其交联密度相对特征值及凝胶质量分数.结果表明,所制备的GAP凝胶均具有良好的热稳定性,密度为0.455~0.556g/cm3,且随着所选用的溶剂的极性减小,GAP凝胶的质量分数与交联密度增大,耐热性提高,分解放热增大,机械性能增强.

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