摘要
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.
GAP gels were prepared separately in five solvents by sol-gel method. The GAP gels were characterized using the measures of FT-IR spectroscopy, TG and DSC for its structure and thermal properties. Its crosslinking density relative eigenvalue and gel mass fraction were tested. The results indicate that the prepared GAP gels all have good thermostability and their density are in the scope of 0. 455-0. 556 g/cm3. And as the decreasing of the chosen solvents＇ polarity, all properties of GAP gel such as gel fraction, crosslinking density, thermal stability, thermal decomposition and mechanical performance are enhanced.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2011年第11期1365-1369,共5页
Transactions of Beijing Institute of Technology
基金
国家重点实验室基金资助项目(YBKT11-01)
国家自然科学基金资助项目(10876004)
关键词
GAP凝胶
溶剂极性
热性能
交联密度
凝胶质量分数
GAP gel
solvent polarity
thermal properties
crosslinking density
gel massfraction
