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Mechanical behavior of unidirectional carbon fiber-reinforced polyamide 6 composites under transverse tension and the structure of polyamide 6 among carbon fibers
Polymer Journal ( IF 2.8 ) Pub Date : 2020-06-10 , DOI: 10.1038/s41428-020-0371-4
Hideyuki Uematsu , Daisuke Kurita , Shota Nakakubo , Ayaka Yamaguchi , Masachika Yamane , Kazumasa Kawabe , Shuichi Tanoue

The mechanical properties of unidirectional carbon fiber (CF)-reinforced polyamide 6 (PA6) composites subjected to transverse tension were studied in terms of the structure of the PA6 matrix among the CFs. Two types of CFs with different surface profiles (one smooth and one rough) were used as reinforcements in this study. The surface profile of the CFs had no effect on the tensile strength or Young’s modulus of the composites, whereas the surface profile influenced the strain at break of the composites. According to the results of X-ray diffraction analyses, the crystalline structure of the PA6 matrix in the composites was not substantially influenced by the type of CF. Polarized micrographs of the composites revealed that the birefringence of the PA6 matrix at the interface of the CFs with rough surfaces was remarkably higher than that of the matrix away from the fibers (i.e., in the bulk region). The difference in the local crystalline structure of the PA6 matrix among the CFs can affect the mechanical behavior of the unidirectional PA6/CF composites under transverse tension. The mechanical properties of a unidirectional carbon fiber (CF)-reinforced polyamide 6 (PA6) composite subjected to a tension perpendicular to the CFs was studied by using two types of CFs with different surface profile. The difference of local crystalline structure of PA6 among CFs can be affected to the mechanical behavior of unidirectional PA6/CF composite under transverse tension.

中文翻译:

横向拉伸下单向碳纤维增强聚酰胺6复合材料的力学行为及碳纤维间聚酰胺6的结构

研究了单向碳纤维 (CF) 增强聚酰胺 6 (PA6) 复合材料在横向拉伸下的力学性能,该复合材料在 CF 之间的 PA6 基体结构。在本研究中,使用具有不同表面轮廓的两种类型的 CF(一种光滑的和一种粗糙的)作为增强材料。CFs 的表面轮廓对复合材料的拉伸强度或杨氏模量没有影响,而表面轮廓影响复合材料的断裂应变。根据 X 射线衍射分析的结果,复合材料中 PA6 基体的晶体结构基本上不受 CF 类型的影响。复合材料的偏光显微照片显示,在具有粗糙表面的 CF 界面处,PA6 基体的双折射显着高于远离纤维的基体(即,在主体区域)。CFs 之间 PA6 基体局部晶体结构的差异会影响单向 PA6/CF 复合材料在横向张力下的力学行为。通过使用两种不同表面轮廓的碳纤维,研究了单向碳纤维 (CF) 增强聚酰胺 6 (PA6) 复合材料在垂直于碳纤维的张力下的力学性能。CFs 之间 PA6 局部晶体结构的差异会影响单向 PA6/CF 复合材料在横向张力下的力学行为。CFs 之间 PA6 基体局部晶体结构的差异会影响单向 PA6/CF 复合材料在横向张力下的力学行为。通过使用两种不同表面轮廓的碳纤维,研究了单向碳纤维 (CF) 增强聚酰胺 6 (PA6) 复合材料在垂直于碳纤维的张力下的力学性能。CFs 之间 PA6 局部晶体结构的差异会影响单向 PA6/CF 复合材料在横向张力下的力学行为。CFs 之间 PA6 基体局部晶体结构的差异会影响单向 PA6/CF 复合材料在横向张力下的力学行为。通过使用两种不同表面轮廓的碳纤维,研究了单向碳纤维 (CF) 增强聚酰胺 6 (PA6) 复合材料在垂直于碳纤维的张力下的力学性能。CFs 之间 PA6 局部晶体结构的差异会影响单向 PA6/CF 复合材料在横向张力下的力学行为。通过使用两种不同表面轮廓的碳纤维,研究了单向碳纤维 (CF) 增强聚酰胺 6 (PA6) 复合材料在垂直于碳纤维的张力下的力学性能。CFs 之间 PA6 局部晶体结构的差异会影响单向 PA6/CF 复合材料在横向张力下的力学行为。通过使用两种不同表面轮廓的碳纤维,研究了单向碳纤维 (CF) 增强聚酰胺 6 (PA6) 复合材料在垂直于碳纤维的张力下的力学性能。CFs 之间 PA6 局部晶体结构的差异会影响单向 PA6/CF 复合材料在横向张力下的力学行为。
更新日期:2020-06-10
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