• 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 >Effects of Fiber Characteristics on the Mechanical and Rheological Properties of Poly(butylene terephthalate)/Glass Fiber Composites
【24h】

Effects of Fiber Characteristics on the Mechanical and Rheological Properties of Poly(butylene terephthalate)/Glass Fiber Composites

机译：纤维特性对聚对苯二甲酸丁二醇酯/玻璃纤维复合材料力学和流变性能的影响

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

Morphological, mechanical, and rheological properties of poly(butylene terephthalate) (PBT)/glass fiber (GF) composites and their fiber lengths after extrusion were studied, along with the molecular weight of PBT and the sizing effect of the fiber. From the molecular weight effect of PBT on mechanical properties, the lower molecular weight PBT composites prepared showed higher flexural and tensile strengths compared to the PBT/GF composites prepared with a higher molecular weight PBT when the fiber content was over 20 wt %. This behavior was mainly due to the increased fiber length of the PBT/GF composite prepared with lower molecular weight PBT. For the PBT composites with GF coated with organic materials having polarity similar to that of the PBT matrix, better mechanical properties were observed due to higher bonding forces between the matrix and fibers. Due to the effect of fiber length on the complex viscosity of the PBT/GF composite and its resulting high elasticity, the shear thinning behavior was more significant for the composites containing long fibers than in composites containing short fibers. From the above results, it is suggested that the optimum mechanical properties of the fiber-reinforced polymer composite can be achieved by varying the processing conditions such as molecular weight of the matrix polymer, surface treatment of the fiber, and feeder location of the fiber.
机译：研究了聚对苯二甲酸丁二醇酯（PBT）/玻璃纤维（GF）复合材料的形态，力学和流变性能以及挤出后的纤维长度，以及PBT的分子量和纤维的上浆效果。从PBT的分子量对机械性能的影响来看，当纤维含量超过20wt％时，与用较高分子量PBT制备的PBT / GF复合物相比，所制备的较低分子量PBT复合物显示出较高的挠曲和拉伸强度。该行为主要是由于用较低分子量的PBT制备的PBT / GF复合材料的纤维长度增加了。对于GF涂覆有极性与PBT基体相似的有机材料的GF的PBT复合材料，由于基体与纤维之间的结合力较高，因此观察到了更好的机械性能。由于纤维长度对PBT / GF复合材料的复数粘度及其产生的高弹性的影响，含长纤维的复合材料的剪切稀化行为比含短纤维的复合材料更显着。从以上结果表明，可以通过改变加工条件例如基质聚合物的分子量，纤维的表面处理和纤维的进料位置来获得纤维增强的聚合物复合材料的最佳机械性能。

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