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首页> 外文期刊>Journal of Applied Polymer Science >Synergistic effects of carbon fillers on tensile and flexural properties in liquid-crystal polymer based resins
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Synergistic effects of carbon fillers on tensile and flexural properties in liquid-crystal polymer based resins

机译：碳填料对液晶聚合物基树脂中拉伸和弯曲性能的协同效应

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One emerging market for thermally and electrically conductive resins is bipolar plates for use in fuel cells. Adding carbon fillers to thermoplastic resins increases the composite thermal and electrical conductivity. These fillers have an effect on the composite tensile and flexural properties, which are also important for bipolar plates. In this study, various amounts of three different types of carbon (carbon black, synthetic graphite particles, and carbon fibers) were added to Vectra A950RX liquid-crystal polymer. In addition, composites containing combinations of fillers were also investigated via a factorial design. The tensile and flexural properties of the resulting composites were then measured. The objective of this study was to determine the effects and interactions of each filler with respect to the tensile and flexural properties. The addition of carbon black caused the tensile and flexural properties to decrease. Adding synthetic graphite particles caused the tensile and flexural modulus to increase. The addition of carbon fiber caused the tensile and flexural modulus and ultimate flexural strength to increase. In many cases, combining two different fillers caused a statistically significant effect on composite tensile and flexural properties at the 95% confidence level. For example, when 40 wt% synthetic graphite particles and 4 wt% carbon black were combined, the composite ultimate tensile and flexural strength increased more than what would be expected from the individual additive effect of each single filler. It is possible that linkages were formed between the carbon black and synthetic graphite particles that resulted in improved ultimate tensile and flexural strength. (c) 2008 Wiley Periodicals, Inc.
机译：导热和导电树脂的一个新兴市场是用于燃料电池的双极板。向热塑性树脂中添加碳填料可提高复合材料的导热性和导电性。这些填料影响复合材料的拉伸和弯曲性能，这对于双极板也很重要。在这项研究中，向Vectra A950RX液晶聚合物中添加了各种数量的三种不同类型的碳（炭黑，合成石墨颗粒和碳纤维）。此外，还通过析因设计研究了包含填料组合的复合材料。然后测量所得复合材料的拉伸和挠曲性能。这项研究的目的是确定每种填​​料相对于拉伸和弯曲性能的影响和相互作用。炭黑的添加导致拉伸和弯曲性能降低。添加合成石墨颗粒导致拉伸模量和挠曲模量增加。碳纤维的添加导致拉伸模量和挠曲模量以及极限挠曲强度增加。在许多情况下，在95％置信度下组合两种不同的填料对复合材料的拉伸和弯曲性能产生统计学上的显着影响。例如，当将40重量％的合成石墨颗粒和4重量％的炭黑组合时，复合材料的极限拉伸强度和挠曲强度的增加超过了从每种单一填料的单独添加效果所期望的。炭黑与合成石墨颗粒之间可能会形成键，从而导致最终的拉伸强度和弯曲强度提高。 （c）2008 Wiley期刊公司

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