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首页> 外文期刊>Journal of Applied Polymer Science >Microwave processing of SiC nanoparticles infused polymer composites: Comparison of thermal and mechanical properties
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Microwave processing of SiC nanoparticles infused polymer composites: Comparison of thermal and mechanical properties

机译：SiC纳米颗粒注入的聚合物复合材料的微波处理：热性能和机械性能的比较

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摘要

The goal of this study is to compare thermal and mechanical properties of an epoxy resin system reinforced with SiC nanoparticles using both conventional thermal curing and microwave irradiation techniques. The microwave curing technique has shown potential benefits in processing polymeric nanocomposites by reducing the curing time without compromising the thermo-mechanical performances of the materials. It was observed from this investigation that, the curing time was drastically reduced to approximate to 30 min for microwave curing instead of 12 h room temperature curing with additional 6 h post curing at 75 degrees C. Ductile behavior was more pronounced for microwave curing technique while thermal curing showed brittle like behavior as revealed from flexural test. The maximum strain to failure was increased by 25-40% for microwave-cured nanocomposites over the room temperature cured nanocomposites for the same loading of nanofillers. The glass transition temperature (T-g) also increased by approximate to 14 degrees C while curing under microwave irradiation. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41708.
机译：这项研究的目的是使用常规的热固化和微波辐射技术，比较用SiC纳米颗粒增强的环氧树脂体系的热性能和机械性能。微波固化技术通过减少固化时间而不损害材料的热机械性能，已显示出在加工聚合物纳米复合材料方面的潜在优势。从这项调查中可以观察到，微波固化的时间大大缩短，大约为30分钟，而不是室温固化12小时，而在75摄氏度下再固化6小时。微波固化技术的延展性更加明显，而如弯曲测试所显示的，热固化表现出脆性的行为。对于相同负载量的纳米填料，微波固化纳米复合材料的最大破坏应变比室温固化纳米复合材料提高了25-40％。在微波辐射下固化的同时，玻璃化转变温度（T-g）也提高了约14摄氏度。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41708。

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