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首页> 外文期刊>Journal of Applied Polymer Science >Effects of A, B, and S components on fiber length distribution, mechanical, and impact properties of carbon fiber/ABS composites produced by different processing methods
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Effects of A, B, and S components on fiber length distribution, mechanical, and impact properties of carbon fiber/ABS composites produced by different processing methods

机译：用不同加工方法产生的碳纤维/ ABS复合材料纤维长度分布，机械和冲击性能的影响

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摘要

Carbon fiber/ABS composites with different acrylonitrile, butadiene, and styrene components were produced via extrusion/injection and long fiber thermoplastic (LFT)/injection molding processes, respectively. The effect of the components on fiber length distribution, tensile, flexural, impact, and dynamic mechanical properties of the composites was investigated. The properties of carbon fiber/ABS composites produced using 12 mm-long LFT pellets were markedly higher than those produced using extruded pellets made with 12 mm-long chopped carbon fibers. Uses of LFT pellets were preferable to enhancing the mechanical properties of carbon fiber/ABS composites. The tensile, flexural, and dynamic mechanical properties were increased in order of ABS750sw > ABS720 >= ABS780 > ABS740, whereas the impact strength was increased in order of ABS740 > ABS780 > ABS720 approximate to ABS750sw. Less carbon fiber damages and less carbon fiber length degradation upon LFT processing resulted in longer fiber length distribution and higher fiber aspect ratio in the composites with LFT pellets, indicating a beneficial reinforcing effect, which was responsible for the increased mechanical properties of ABS composites, particularly with ABS750sw. The results were agreed with each other, significantly depending on the A, B, and S components, being supported by fiber length distribution, fiber aspect ratio, and fracture surfaces.
机译：分别通过挤出/注射和长纤维热塑性塑料（LFT）/注射成型工艺制备了含有不同丙烯腈、丁二烯和苯乙烯组分的碳纤维/ABS复合材料。研究了各组分对复合材料纤维长度分布、拉伸、弯曲、冲击和动态力学性能的影响。使用12mm长LFT颗粒生产的碳纤维/ABS复合材料的性能明显高于使用12mm长短切碳纤维制成的挤压颗粒生产的复合材料。LFT颗粒的使用比提高碳纤维/ABS复合材料的力学性能更好。拉伸、弯曲和动态力学性能的增加顺序为ABS750sw>ABS720>=ABS780>ABS740，而冲击强度的增加顺序为ABS740>ABS780>ABS720，接近ABS750sw。LFT处理后，碳纤维损伤和碳纤维长度退化减少，导致LFT颗粒复合材料中的纤维长度分布更长，纤维长径比更高，这表明了一种有益的增强效应，这是ABS复合材料机械性能提高的原因，尤其是ABS750sw。结果一致，主要取决于A、B和S组分，由纤维长度分布、纤维长径比和断裂面支撑。

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