• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Polymers >Tensile and Flexural Properties of Silica Nanoparticles Modified Unidirectional Kenaf and Hybrid Glass/Kenaf Epoxy Composites
【2h】

Tensile and Flexural Properties of Silica Nanoparticles Modified Unidirectional Kenaf and Hybrid Glass/Kenaf Epoxy Composites

机译：二氧化硅纳米粒子的拉伸和弯曲性能改性单向keNaf和杂交玻璃/ keNaf环氧复合材料

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。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper investigates the influence of silica nanoparticles on the mechanical properties of a unidirectional (UD) kenaf fiber reinforced polymer (KFRP) and hybrid woven glass/UD kenaf fiber reinforced polymer (GKFRP) composites. In this study, three different nanosilica loadings, i.e., 5, 13 and 25 wt %, and untreated kenaf fiber yarns were used. The untreated long kenaf fiber yarn was wound onto metal frames to produce UD kenaf dry mat layers. The silane-surface-treated nanosilica was initially dispersed into epoxy resin using a high-vacuum mechanical stirrer before being incorporated into the UD untreated kenaf and hybrid woven glass/UD kenaf fiber layers. Eight different composite systems were made, namely KFRP, 5 wt % nanosilica in UD kenaf fiber reinforced polymer composites (5NS-KFRP), 13% nanosilica in UD kenaf fiber reinforced polymer composites (13NS-KFRP), 25 wt % nanosilica in UD kenaf fiber reinforced polymer composites (25NS-KFRP), GKFRP, 5 wt % nanosilica in hybrid woven glass/UD kenaf fiber reinforced polymer composites (5NS-GKFRP), 13 wt % nanosilica in hybrid woven glass/UD kenaf fiber reinforced polymer composites (13NS-GKFRP) and 25 wt % nanosilica in hybrid woven glass/UD kenaf fiber reinforced polymer composites (25NS-GKFRP). All composite systems were tested in tension and bending in accordance with ASTM standards D3039 and D7264, respectively. Based on the results, it was found that the incorporation of homogeneously dispersed nanosilica significantly improved the tensile and flexural properties of KFRP and hybrid GKFRP composites even at the highest loading of 25 wt % nanosilica. Based on the scanning electron microscopy (SEM) examination of the fractured surfaces, it is suggested that the silane-treated nanosilica exhibits good interactions with epoxy and the kenaf and glass fibers. Therefore, the presence of nanosilica in an epoxy polymer contributes to a stiffer matrix that, effectively, enhances the capability of transferring a load to the fibers. Thus, this supports greater loads and improves the mechanical properties of the kenaf and hybrid composites.
机译：本文研究了二氧化硅纳米粒子对单向（UD）keNaf纤维增强聚合物（KFRP）和杂交织玻璃/ UD keNAF纤维增强聚合物（GKFRP）复合材料的机械性能的影响。在该研究中，使用三种不同的纳米碱载体，即5,13和25wt％，并且未经处理的keenaf纤维纱线。将未处理的长keNaf纤维纱线卷绕在金属框架上以产生UD keNaf干垫层。在将高真空机械搅拌器中掺入UD未经处理的keNAF和杂化织物玻璃/ UD keNaf纤维层之前，最初使用高真空机械搅拌器分散到环氧树脂中。制备了八种不同的复合系统，即kfrp，5wt％纳米磷酸纤维增强聚合物复合材料（5ns-kFrp），13％纳米磷酸纤维增强聚合物复合材料（13ns-Kflp），25wt％纳米磷酸中的纳米磷酸盐纤维增强聚合物复合材料（25NS-KFRP），GKFRP，5wt％纳米硅藻中杂交织物/ UD keNAF纤维增强聚合物复合材料（5ns-GKFRP），杂交编织玻璃/ UD keNAF纤维增强聚合物复合材料中的13wt％纳米磷酸盐（13ns -GKFRP）和25wt％纳米硅酸盐中的杂交编织玻璃/ UD KENAF纤维增强聚合物复合材料（25ns-GKFRP）。所有复合系统都分别根据ASTM标准D3039和D7264在张力和弯曲中进行测试。基于结果，发现均匀分散的纳米碱基掺入甚至在25wt％纳米硅的最高负载下显着改善了KFRP和杂交GKFRP复合材料的拉伸和弯曲性能。基于扫描电子显微镜（SEM）检查裂缝表面，建议硅烷处理的纳米硅藻表现出与环氧和keOxA的良好相互作用。因此，在环氧聚合物中存在纳米石的存在有效地有效地提高了将负载转移到纤维的纤维的基质。因此，这支持更大的载荷并改善keNAF和混合复合材料的机械性能。

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