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首页> 外文会议>International Conference Baltic Polymer Symposium >Properties of sustainable composites based on bio-based polyamides and recycled carbon fibers under static and cyclic loads
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Properties of sustainable composites based on bio-based polyamides and recycled carbon fibers under static and cyclic loads

机译：基于生物基聚酰胺的可持续复合材料及静态载荷下再循环碳纤维的性质

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The demand for high-performance materials increases in the last decade and sustainability of materials becomes more important as well.Different bio-based polyamides of type x.10 were compounded with 30wt% recycled carbon fibers to achieve a material with high mechanical properties with low CO2 emissions.The micro structure was evaluated by using high-resolution tomography(voxel size under 1μm)and scanning electron microscopy(SEM).Mechanical tests were done to characterize the quasi-static and fatigue performance of the composites.The carbon fiber composites show a significant increase of Youngs’Modulus and tensile strengths compared to the neat polyamides.The fatigue strength measured by an increasing stress fatigue test is approx.67% of the tensile strength of each studied composite.Besides the short carbon fibers(mean value about 80um)larger impurities from the recycled carbon fibers were observed.Due to that and the fiber recycling process,the tensile strengths of these sustainable composites are lower compared to composites with virgin carbon fibers and approximately on the level of glass fiber reinforced polyamides.
机译：对高性能材料的需求在过去十年中增加，材料的可持续性也变得更加重要。X.10型型的各种生物基聚酰胺与30wt％的再生碳纤维混合，以达到具有低机械性能的材料二氧化碳排放量。通过使用高分辨率断层扫描（体素大小）评估微结构，并进行扫描电子显微镜（SEM）。机械测试进行了表征复合材料的准静态和疲劳性能。碳纤维复合材料显示与整齐的聚酰胺相比，杨氏模划线和拉伸强度的显着增加。通过增加应力疲劳试验测量的疲劳强度是每个研究复合材料的拉伸强度的约67％。存在短碳纤维（平均值约80um ）观察到循环碳纤维的较大杂质。到该纤维回收过程，这些可持续的抗拉强度与具有原始碳纤维的复合材料相比，复合材料较低，大约在玻璃纤维增​​强聚酰胺水平上。

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