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首页> 外文期刊>Journal of Applied Polymer Science >Improved Thermomechanical Properties of Carbon Fiber Reinforced Epoxy Composite Using Amino Functionalized XDCNT
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Improved Thermomechanical Properties of Carbon Fiber Reinforced Epoxy Composite Using Amino Functionalized XDCNT

机译：氨基官能化XDCNT改善碳纤维增强环氧树脂复合材料的热机械性能

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摘要

Carbon fiber-reinforced epoxy composites (CFEC) are fabricated infusing up to 0.40 wt % amino-functionalized XD-grade carbon nanotubes (XDCNT) using the compression molding process. Interlaminar shear strength (ILSS) and thermomechanical properties of these composites are evaluated through short beam shear and dynamic–mechanical thermal analysis tests. XDCNTs are infused into Epon 862 resin using a mechanical stirrer followed by sonication. After the sonication, the mixture was placed in a three roll milling processor for three successive cycles at 140 rpm for uniform dispersion of CNTs. Epikure W curing agent was then added to the resin using a high-speed mechanical stirrer. Finally, the fiber was reinforced with the modified resin using the compressive mold. ILSS was observed to increase by 22% at 0.3 wt % XDCNT loading. Thermal properties, including storage modulus, glass transition temperature, and crosslink density demonstrated linear enhancement up to the 0.3 wt % XDCNT loading. Scanning electron microscopy revealed better interfacial bonding in the CNT-loaded CFEC.
机译：碳纤维增强环氧复合材料（CFEC）使用压缩成型工艺注入了多达0.40 wt％的氨基官能化XD级碳纳米管（XDCNT）。这些复合材料的层间剪切强度（ILSS）和热机械性能通过短梁剪切和动态力学热分析测试进行评估。使用机械搅拌器将XDCNT注入Epon 862树脂中，然后进行超声处理。超声处理后，将混合物置于三辊研磨机中，以140 rpm连续三个循环，以均匀分散CNT。然后使用高速机械搅拌器将Epikure W固化剂添加到树脂中。最后，使用压缩模将纤维用改性树脂增强。观察到在0.3 wt％XDCNT负载下，ILSS增加了22％。热性能，包括储能模量，玻璃化转变温度和交联密度，显示出线性增强，直至XDCNT的添加量为0.3 wt％。扫描电子显微镜显示在加载CNT的CFEC中更好的界面结合。

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