• 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 >Water absorption and dimensional stability of short kenaf fiber-filled polypropylene composites treated with maleated polypropylene
【24h】

Water absorption and dimensional stability of short kenaf fiber-filled polypropylene composites treated with maleated polypropylene

机译：马来酸化聚丙烯处理短洋麻纤维填充聚丙烯复合材料的吸水率和尺寸稳定性

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

The purpose of this research was to investigate the water absorption behavior and associated dimensional stability of kenaf-polypropylene-filled (PP/KF) composites. Composites with different fiber loadings, ranging from 0 to 40 wt %, were prepared with a twin-screw extruder followed by hot press molding. The influence of the compatibilizer was also studied for PP/KF composite with 5 wt % maleated PP (MAPP). Water absorption testing was carried out at room temperature for 7 weeks. Tensile, flexural, and impact tests were also performed on control, wet, and re-dried specimens. Increasing the fiber content resulted in higher water absorption and thickness swelling. The inferior mechanical properties of the wet composites were attributed to the effect of water, which deteriorates the interfacial properties of composites. On re-drying, all properties were almost recovered because of the recovery of interfacial area as evident in scanning electron micrographs. Incorporation of the MAPP significantly improved the compatibility between the fiber and matrix and the mechanical properties of the composites compared with those without MAPP. It also diminished the water absorption as well as the related thickness swelling in the composites.
机译：这项研究的目的是研究洋麻-聚丙烯填充（PP / KF）复合材料的吸水性能和相关的尺寸稳定性。用双螺杆挤出机制备具有不同纤维含量为0至40重量％的复合材料，然后进行热压成型。还研究了相容剂对含5 wt％马来酸化PP（MAPP）的PP / KF复合材料的影响。吸水率测试在室温下进行7周。还对对照，潮湿和重新干燥的样品进行了拉伸，弯曲和冲击测试。纤维含量的增加导致更高的吸水率和厚度膨胀。湿复合材料的较差的机械性能归因于水的作用，这降低了复合材料的界面性能。在重新干燥后，由于界面面积的恢复，几乎所有性能都得到了恢复，这在扫描电子显微照片中很明显。与没有MAPP的材料相比，掺入MAPP可以显着改善纤维与基质之间的相容性以及复合材料的机械性能。它还减少了复合材料的吸水率以及相关的厚度膨胀。

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