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首页> 外文期刊>International Polymer Processing: The Journal of the Polymer Processing Society >A Study on the Mechanical Property and 3D Fiber Distribution in Injection Molded Glass Fiber Reinforced PA66
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A Study on the Mechanical Property and 3D Fiber Distribution in Injection Molded Glass Fiber Reinforced PA66

机译：注塑玻璃纤维增​​强PA66的力学性能和3D纤维分布的研究

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摘要

Polyamide66 (PA66) is being widely used for automobile part and other applications. In many cases, PA66 is reinforced with glass fiber to enhance its mechanical properties. In this study, the mechanical properties and glass fiber distributions in injection molded part have been investigated for glass fiber reinforced PA66. Two shapes of glass fibers, circular and flat, were used for the glass fiber reinforced PA66. X-ray microto-mography (micro-CT) was used to observe the glass fiber distributions in the PA66 composites. Micro-CT photos were taken in three directions to observe the three-dimensional glass fiber distributions in the injection molded specimens. Investigation of the mechanical properties in relation to the glass fiber orientation revealed that the orientation of the fibers enhanced the mechanical properties. Glass fibers with smaller diameters resulted in better mechanical properties. Circular glass fiber reinforced PA66 exhibited better mechanical properties than flat glass fiber reinforced PA66. The skin layer showed that the glass fibers strongly orientated to the flow direction while glass fibers in the core layer orientated perpendicular to the flow direction because of fountain flows. Glass fibers in the core layer also oriented to the width direction of the flow. Consequently, glass fibers in this core region oriented three dimensionally. Full three-dimensional model of glass fiber orientation was proposed in this paper.
机译：聚酰胺66（PA66）被广泛用于汽车零件和其他应用。在许多情况下，PA66用玻璃纤维增​​强以增强其机械性能。在这项研究中，对玻璃纤维增​​强PA66的注塑件的机械性能和玻璃纤维分布进行了研究。玻璃纤维增​​强的PA66使用两种形状的圆形和扁平玻璃纤维。使用X射线显微照相术（micro-CT）观察PA66复合材料中的玻璃纤维分布。在三个方向上拍摄Micro-CT照片，以观察注塑样品中的三维玻璃纤维分布。与玻璃纤维取向有关的机械性能的研究表明，纤维的取向增强了机械性能。直径较小的玻璃纤维具有更好的机械性能。圆形玻璃纤维增​​强的PA66表现出比平面玻璃纤维增​​强的PA66更好的机械性能。表皮层表明，由于润版液的流动，玻璃纤维强烈地沿流动方向取向，而芯层中的玻璃纤维垂直于流动方向取向。芯层中的玻璃纤维也取向为流动的宽度方向。因此，该芯区域中的玻璃纤维三维定向。提出了玻璃纤维定向的完整三维模型。

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