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首页> 外文会议>Proceedings of the joint American Society for Composites/American Society for Testing and Materials Committee D30—nineteenth technical conference >Processing and Creep of Carbon Nanofiber andNanotube Reinforced Epoxy Composites
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Processing and Creep of Carbon Nanofiber andNanotube Reinforced Epoxy Composites

机译：碳纳米纤维和纳米管增强环氧树脂复合材料的加工与蠕变

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摘要

The objective of this investigation is to evaluate the tensile creep behavior ofrnsingle walled carbon nanotube (NT) and carbon nanofiber (NF) reinforced epoxyrncomposites made with different processing methods and surfactants. Reinforcementrnweight concentrations of up to 2.5% were evaluated. Processing procedures wererninvestigated through scanning electron microscopy, thermal mechanical analysis,rnand tensile creep tests to determine their effects on the dispersion of NTs and NFs,rnglass transition temperature (Tg), coefficient of thermal expansion (CTE), and creeprnresistance of the composite materials. The NT composites containing poly-rn(diallyldimethylammonium chloride) surfactant showed the greatest change inrnproperties versus neat epoxy resin, including a 2.2 με/℃ decrease in CTE, an 8℃rnincrease in Tg, and a 14% decrease in creep compliance at 107 seconds with thernaddition of only 0.5% NTs. Composite properties were affected more by NTs thanrnby NFs for a weight reinforcement of 0.5%.
机译：这项研究的目的是评估用不同加工方法和表面活性剂制成的单壁碳纳米管（NT）和碳纳米纤维（NF）增强环氧复合材料的拉伸蠕变行为。评估了高达2.5％的增强重量浓度。通过扫描电子显微镜，热力学分析，拉伸蠕变试验研究了加工程序，以确定它们对NTs和NFs分散，玻璃化转变温度（Tg），热膨胀系数（CTE）和复合材料的抗蠕变性的影响。相对于纯环氧树脂，含聚-（二烯丙基二甲基氯化铵）表面活性剂的NT复合材料显示出最大的内在性能变化，包括CTE降低2.2με/℃，Tg升高8℃和107秒时蠕变柔度降低14％。加上新台币的0.5％复合材料性能受NTs的影响比受NFs的影响更大，重量增加0.5％。

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