• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Influence of chemical treatment on the properties of banana stem fiber and banana stem fiber/coir hybrid fiber reinforced maleic anhydride grafted polypropylene/low-density polyethylene composites
【24h】

Influence of chemical treatment on the properties of banana stem fiber and banana stem fiber/coir hybrid fiber reinforced maleic anhydride grafted polypropylene/low-density polyethylene composites

机译：化学处理对香蕉干纤维和香蕉干纤维/椰壳杂化纤维增强马来酸酐接枝聚丙烯/低密度聚乙烯复合材料性能的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Banana stem fiber (BSF) reinforced low-density polyethylene (PE) composites were prepared with a hot-press molding machine in the presence of maleic anhydride grafted polypropylene (MAPP). To achieve better mechanical properties, the fiber was chemically modified by bleaching, alkalization, and acetylation. The ultimate tensile strength (UTS) of the untreated and treated BSF composites were found to increase with increasing fiber loading up to 20%, whereas the maximum Charpy impact strength (IS) and flexural strength (FS) values were seen at 10% fiber loading; these values decreased thereafter. The Young's modulus (YM) values of the BSF composites increased sharply with fiber loading. All of the treated fibers exhibited better mechanical properties than the untreated ones. The acetylated fiber showed higher UTS (44 MPa), FS (50 MPa), and IS (12.5 j/m~2) values than the other treated and untreated fibers. The improvements in the mechanical properties of the treated composites were further supported by scanning electron microscopy images of the fracture surfaces. The thermal stabilities of the composites were studied by means of thermogravimetry, differential thermogravimetry, and differential thermal analysis measurements. Hybrid composites composed of BSF (10 wt %), coir fiber (5 wt %), and a MAPP/low-density PE matrix were prepared. Significant improvements in UTS, YM, FS, and IS were seen in the hybrid composites containing surface-modified BSF. The effects of BSF composition on the composite properties were also studied.
机译：在马来酸酐接枝聚丙烯（MAPP）存在下，用热压成型机制备香蕉梗纤维（BSF）增强的低密度聚乙烯（PE）复合材料。为了获得更好的机械性能，通过漂白，碱化和乙酰化对纤维进行了化学改性。发现未处理和处理过的BSF复合材料的极限拉伸强度（UTS）随纤维负载增加达20％而增加，而在10％纤维负载下可看到最大夏比冲击强度（IS）和抗弯强度（FS）值;这些值此后下降。 BSF复合材料的杨氏模量（YM）值随纤维负载急剧增加。所有处理过的纤维均比未处理过的纤维表现出更好的机械性能。乙酰化纤维的UTS（44 MPa），FS（50 MPa）和IS（12.5 j / m〜2）值均高于其他处理和未处理的纤维。断裂表面的扫描电子显微镜图像进一步支持了处理后的复合材料的机械性能的改善。通过热重分析，差示热重分析和差示热分析测量研究了复合材料的热稳定性。制备了由BSF（10 wt％），椰壳纤维（5 wt％）和MAPP /低密度PE基体组成的杂化复合材料。在包含表面改性BSF的杂化复合材料中，可以看到UTS，YM，FS和IS的显着改善。还研究了BSF组成对复合材料性能的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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