Effect of polypropylene on the mechanical properties and water absorption of carbon-fiber-reinforced-polyamide-6/polypropylene composite
Effect of polypropylene on the mechanical properties and water absorption of carbon-fiber-reinforced-polyamide-6/polypropylene composite
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DOI：
10.1016/j.compstruct.2016.05.011
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发表时间：
2016-08-15
影响因子：
6.3
通讯作者：
Doo-Man Chun
中科院分区：
文献类型：
--
作者：
Van-Ta Do;Huu-Duc Nguyen-Tran;Doo-Man Chun
轻质材料在许多行业都变得越来越重要，如汽车、便携式电子产品等。含有聚酰胺-6(PA6)和聚丙烯(PP)的聚合物共混物已被广泛应用于减重和低吸水率。众所周知，PA6对水具有很高的亲和力，其力学性能和尺寸稳定性往往受到吸水率的显著影响，而PP的特点是耐湿、密度低和成本低。本研究的目的是研究PP对碳纤维增强尼龙6复合材料的减重、吸水率、尺寸稳定性和力学性能的影响，以期找到一种合适的方法来改善工业上广泛应用的碳纤维增强尼龙6，特别是在高湿度和水下应用。通过拉伸试验和扫描电子显微镜对含水和不含水复合材料的力学性能和微观结构进行了评价。在水饱和后，加入PP的复合材料的极限拉伸强度、弹性模量、伸长率、减重密度和尺寸稳定性均好于不含PP的复合材料。(C)2016爱思唯尔有限公司。保留所有权利。
Lightweight materials are becoming important in many industries, such as automotive, portable electronics, and so on. Polymer blends containing polyamide-6 (PA6) and polypropylene (PP) have been widely applied for weight reduction and low water absorption. It is well known that PA6 has a high affinity for water, and its mechanical properties and dimensional stability are often significantly affected by the absorption of water, whereas PP is characterized by its moisture resistance, low density and cost. The aim of our research was to investigate the effect of PP on the weight reduction, water absorption, dimensional stability and mechanical properties of carbon-fiber-reinforced PA6 composite in order to find a proper way to improve carbon-fiber-reinforced PA6 widely used in industry especially for high humidity or underwater applications. We assessed the mechanical properties by a tensile test and the microstructure by scanning electron microscopy for composites with and without water saturation. After being saturated with water, the composites with PP showed better ultimate tensile strength, elastic modulus, elongation, density for weight reduction and dimensional stability than the composite without PP. (C) 2016 Elsevier Ltd. All rights reserved.