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首页> 外文期刊>Science of advanced materials >Evaluating the Effect of Carbon Black-A Short Carbon Fiber Hybrid Filler on the Electro-Activated Shape Memory Cyanate Ester/Epoxy Composites
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Evaluating the Effect of Carbon Black-A Short Carbon Fiber Hybrid Filler on the Electro-Activated Shape Memory Cyanate Ester/Epoxy Composites

机译：评价炭黑-短碳纤维混合填料对电活化的形状记忆氰酸酯/环氧树脂复合材料的影响

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摘要

An electro-activated type shape memory cyanate ester-epoxy (CE-EP) composites containing short carbon fiber (SCF) and carbon black (CB) were fabricated, where SCF linked among CB particles to make the superior conductivity network in compositions. In the compositions, the content of CB was fixed at 5 wt%, while the amount of SCF was ranged from 0 to 0.9 wt%. The synergistic effects of SCF and CB on the mechanical properties test, electrical properties, SEM, DMA and the electro-activated type shape memory experiment was reviewed. The outcomes showed that when the parts of SCF is less than 0.9%, the mechanical properties and storage modulus of required compositions expand with the content of the SCF growth. But, when the SCF content reaches 0.9 wt%, the flexural strength and storage modulus of the compositions decrease slightly. With the growth of SCF content, the glass transformation temperature increases from 89 degrees C to 103 degrees C and the resistivity of the composites decreases gradually. The resistivity of the composites is only 7.37 Omega/cm with 0.9 wt% of SCF. Further, the thermal response speed and shape convalescence rate of the compositions increase greatly with the growth of SCF content.
机译：制备了包含短碳纤维（SCF）和炭黑（CB）的电活化型形状记忆氰酸酯-环氧树脂（CE-EP）复合材料，其中SCF连接在CB颗粒之间，从而使组合物中的导电性网络更加优越。在该组合物中，CB的含量固定为5重量％，而SCF的量为0至0.9重量％。综述了SCF和CB对机械性能测试，电性能，SEM，DMA和电激活型形状记忆实验的协同作用。结果表明，当SCF的含量小于0.9％时，所需组合物的机械性能和储能模量随SCF含量的增加而增大。但是，当SCF含量达到0.9wt％时，组合物的弯曲强度和储能模量略有下降。随着SCF含量的增加，玻璃化转变温度从89摄氏度增加到103摄氏度，复合材料的电阻率逐渐降低。在SCF为0.9重量％的情况下，复合材料的电阻率仅为7.37Ω/ cm。此外，随着SCF含量的增加，组合物的热响应速度和形状恢复速率大大提高。

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