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首页> 外文期刊>Journal of Applied Polymer Science >Mechanical characterization and application of Weibull statistics to the strength of softwood lignin-based carbon fibers
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Mechanical characterization and application of Weibull statistics to the strength of softwood lignin-based carbon fibers

机译：威布尔统计量的力学表征及在软木木质素基碳纤维强度中的应用

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摘要

Mechanical characterization of the first generation of softwood kraft lignin-based carbon fibers (CF) was carried out. The single-fiber tensile tests of filaments with different diameters and length were performed to evaluate stiffness and strength of carbon fibers. The average mechanical properties were measured as follows: tensile strength of approximately 300 MPa, the elastic modulus of 30 GPa and a strain at failure within interval of 0.7-1.2%. The fiber strength data was evaluated by the two-parameter Weibull statistics and parameters of this distribution were obtained. Although strength of the produced fibers is still significantly lower than that of commercially available, the experimental results and predictions based on Weibull statistics show a fairly good fit.
机译：对第一代软木牛皮纸木质素基碳纤维（CF）进行了机械表征。对不同直径和长度的长丝进行单纤维拉伸试验，以评估碳纤维的刚度和强度。平均机械性能的测量如下：抗张强度约为300 MPa，弹性模量为30 GPa，破坏应变在0.7-1.2％范围内。通过两参数威布尔统计评估纤维强度数据，并获得该分布的参数。尽管所生产纤维的强度仍大大低于市售纤维，但基于威布尔统计数据的实验结果和预测显示出很好的拟合度。

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