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首页> 外文期刊>Polymers for advanced technologies >Studies on the mechanical and dynamic mechanical properties of thermotropic liquid crystalline polymer/unsaturated polyester/glass fiber in situ hybrid composites
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Studies on the mechanical and dynamic mechanical properties of thermotropic liquid crystalline polymer/unsaturated polyester/glass fiber in situ hybrid composites

机译：热致液晶聚合物/不饱和聚酯/玻璃纤维原位杂化复合材料的力学和动态力学性能研究

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摘要

In situ hybrid composites of thermotropic liquid-crystalline polymer (TLCP), unsaturated polyester (UP) and glass fiber (GF) have been successfully prepared by melt mixing technology. The mechanical properties and dynamic mechanical properties and the morphologies of these in situ hybrid composites have been studied by static mechanics analysis, dynamic mechanical analysis (DMA) and scanning electron microscopy (SEM). The static mechanical test results showed that the impact strength and the bending strength, bending modulus, specific strength and specific modulus of the in situ hybrid composites tend to increase with the increase of TLCP content for the composites containing TLCP content below 5%. DMA results indicate that the microstructure of curing network, glass transition temperature and obdurability of composites with TLCP content below 5% have been improved. Scanning electron microscope observations revealed that the interfacial adhesion between matrix and fiber had been improved with the addition of TLCP.
机译：通过熔融混合技术成功地制备了热致液晶聚合物（TLCP），不饱和聚酯（UP）和玻璃纤维（GF）的原位杂化复合材料。通过静态力学分析，动态力学分析（DMA）和扫描电子显微镜（SEM）研究了这些原位杂化复合材料的力学性能和动态力学性能以及形态。静态力学测试结果表明，当TLCP含量低于5％时，原位杂化复合材料的冲击强度，弯曲强度，弯曲模量，比强度和比模量会随着TLCP含量的增加而增加。 DMA结果表明，TLCP含量低于5％的复合材料的固化网络的微观结构，玻璃化转变温度和不透明性得到了改善。扫描电子显微镜观察表明，加入TLCP可以改善基质与纤维之间的界面粘合力。

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