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首页> 外文期刊>Journal of Applied Polymer Science >Epoxy Compositions Cured with Aluminosilsesquioxanes: Thermomechanical Properties
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Epoxy Compositions Cured with Aluminosilsesquioxanes: Thermomechanical Properties

机译：铝硅倍半氧烷固化的环氧树脂组合物：热机械性能

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摘要

The aim of this study was to verify the influence of bis(heptaphenylaluminosilsesquioxane) (AlPOSS), used as a curing agent, on the thermomechanical properties of epoxy resin. Moreover, various curing conditions were taken into account. Epoxy casts were prepared from epoxy resin based on bisphenol A cured with different amounts of bis(heptaphenylaluminosilsesquioxane). The thermomechanical properties were investigated during dynamical mechanical thermal analysis (DMTA) in two cycles of heating. The storage modulus G' of the epoxy casts was found to be higher in comparison to the reference epoxy sample and significantly dependent on the POSS content. A correlation between the glass transition temperatures (T_g), the curing conditions and the amount of curing agents were closely related. The occurrence of the crosslinking process in epoxy matrix was proved by the FTIR spectroscopy. The structure of the epoxy casts was investigated using scanning electron microscopy (SEM).
机译：这项研究的目的是验证用作固化剂的双（七苯基铝硅倍半氧烷）（AlPOSS）对环氧树脂的热机械性能的影响。此外，考虑了各种固化条件。由基于双酚A的环氧树脂制备环氧树脂铸模，该双酚A用不同量的双（七苯基铝硅倍半氧烷）固化。在两个加热周期的动态机械热分析（DMTA）过程中研究了热机械性能。发现环氧铸件的储能模量G'与参考环氧样品相比更高，并且显着取决于POSS含量。玻璃化转变温度（T_g），固化条件和固化剂的量之间的关系密切相关。 FTIR光谱证明了环氧基体中交联过程的发生。环氧铸件的结构使用扫描电子显微镜（SEM）进行了研究。

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