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首页> 外文期刊>Composite Structures >Structure and interfacial shear strength of polypropylene-glass fiber/carbon fiber hybrid composites fabricated by direct fiber feeding injection molding
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Structure and interfacial shear strength of polypropylene-glass fiber/carbon fiber hybrid composites fabricated by direct fiber feeding injection molding

机译：直接纤维进料注射成型聚丙烯-玻璃纤维/碳纤维混杂复合材料的结构和界面剪切强度

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摘要

The structure and interfacial shear strength (IFSS) of polypropylene-glass fiber/carbon fiber hybrid composites fabricated by a new method called direct fiber feeding injection molding (DFFIM) process were investigated based on the skin-core-skin structure and modified Kelly-Tyson equation, respectively. The fiber dispersion state was evaluated qualitatively by scanning electron microscopy (SEM) and quantitatively by the fiber distribution index (FDI). Carbon fiber agglomeration is more likely to occur in hybrid composites and was present in the core layer of DFFIM composites in this study. However, glass fiber has shown relatively uniform dispersion in hybrid composites with a greater tendency to be distributed in the skin layers. This is attributed to the difference in feeding method, where glass fibers were fed through the hopper while carbon fibers were inserted from the vent hole. The IFSS between fibers and polypropylene of different composites in different layers is discussed by considering fiber length and orientation distributions in the core and skin layers, respectively.
机译：基于表皮-芯-皮结构和改性凯利-泰森（Kelly-Tyson），研究了一种通过直接纤维进料注射成型（DFFIM）工艺制备的聚丙烯-玻璃纤维/碳纤维杂化复合材料的结构和界面剪切强度（IFSS）等式。通过扫描电子显微镜（SEM）定性评估纤维分散状态，并通过纤维分布指数（FDI）定量评估纤维分散状态。在这项研究中，碳纤维附聚在混合复合材料中更可能发生，并且存在于DFFIM复合材料的芯层中。然而，玻璃纤维在杂化复合物中显示出相对均匀的分散，并具有更大的分布在表皮层中的趋势。这归因于进料方法的不同，玻璃纤维通过漏斗进料，而碳纤维则从通风孔插入。通过分别考虑芯层和表层中纤维的长度和取向分布，讨论了不同层中不同复合材料的纤维和聚丙烯之间的IFSS。

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