Thermal properties and crystallite morphology of nylon 66 modified with a novel biphenyl aromatic liquid crystalline epoxy resin.
作者： Zhiqi Cai , Shuang Mei , Yuan Lu , Yuanqi He , Pihui Pi
关键词:
摘要: In order to improve the thermal properties of important engineering plastics, a novel kind liquid crystalline epoxy resin (LCER), 3,3',5,5' -Tetramethylbiphenyl-4,4' -diyl bis(4-(oxiran-2-ylmethoxy)benzoate) (M1) was introduced blend with nylon 66 (M2) at high temperature. The effects M1 on chemical modification and crystallite morphology M2 were investigated by rheometry, thermo gravimetric analysis (TGA), dynamic differential scanning calorimetry (DSC) polarized optical microscopy (POM). TGA results showed that initial decomposition temperature increased about 8 °C adding 7% wt M1, indicating improvement stability. DSC illustrated melting point composites decreased 12 compared as content increased, showing processing property. POM measurements confirmed dimension nylon-66 spherulites crystallization region because addition M1.
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