首页> 外文OA文献 >Mechanical and impact performance of three-phase polyamide 6 nanocomposites.
【2h】

Mechanical and impact performance of three-phase polyamide 6 nanocomposites.

机译:三相聚酰胺6纳米复合材料的机械性能和冲击性能。

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

In this work, three-phase nanocomposites using multiscale reinforcements were studied to evaluate the influence of nanofillers on static and dynamic mechanical properties at varying temperature conditions. In particular, short-fibres reinforced polyamide 6 (30 wt.%) composites with various weight fractions of montmorillonite (OMMT) and nanosilica (SiO2), manufactured and investigated. Quasi-static tensile properties were investigated at room temperature and also at 65 °C just above the polyamide 6 (PA6) glass transition temperature. The low velocity impact tests were conducted on the manufactured cone-shaped structures to evaluate the crash behaviour and energy absorption capability. The study results shows that the increase of the weight percentage level of OMMT in PA6/glass fibre (30 wt.%) composite made the nanocomposites more brittle and simultaneously deteriorated the tensile properties. SiO2 nanofiller at 1 wt.% was found to be the optimum ratio for improving tensile properties in silica-based nanocomposites studied. It was further noted that for both types of nanofillers, the crashing behaviour and energy absorption in dynamic properties were improved with increase in nanofillers weight percentage in the composites. The study also shows that the brittleness behaviour of the nanocomposites investigated is associated to the fibre/matrix interaction which is dependent on the nanofiller type and has significant effect on crash modes observed.
机译:在这项工作中,研究了使用多尺度增强剂的三相纳米复合材料,以评估纳米填料在不同温度条件下对静态和动态力学性能的影响。尤其是,制造和研究了具有各种重量分数的蒙脱土(OMMT)和纳米二氧化硅(SiO2)的短纤维增强聚酰胺6(30 wt。%)复合材料。在室温下以及在刚好高于聚酰胺6(PA6)玻璃化温度的65°C下研究了准静态拉伸性能。在制造的圆锥形结构上进行了低速冲击测试,以评估碰撞行为和能量吸收能力。研究结果表明,PA6 /玻璃纤维(30 wt。%)复合材料中OMMT的重量百分比水平的增加使纳米复合材料更脆,同时降低了拉伸性能。发现以1重量%的SiO 2纳米填料是改善所研究的基于二氧化硅的纳米复合材料的拉伸性能的最佳比例。进一步注意到,对于两种类型的纳米填料,随着复合物中纳米填料重量百分比的增加,碰撞行为和动态性能中的能量吸收得到改善。研究还表明,所研究的纳米复合材料的脆性行为与纤维/基体的相互作用有关,这取决于纳米填料的类型,并且对观察到的碰撞模式有重大影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号