Development of a Method for Characterization of the Fibre Length of Long Staple Carbon Fibres Based on Image Analysis
Development of a Method for Characterization of the Fibre Length of Long Staple Carbon Fibres Based on Image Analysis
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DOI：
10.5604/12303666.1207845
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发表时间：
2016-07-01
影响因子：
0.9
通讯作者：
Cherif, Chokri
中科院分区：
文献类型：
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作者：
Hengstermann, Martin;Bardl, Georg;Cherif, Chokri
对于由短碳纤维（CF）制成的承载碳纤维增强塑料（CFRP）的制造，复合材料中CF纤维长度的声明是必不可少的。然而，对于60毫米以上的长纤纤维，目前还没有合适的纤维长度测量方法。本研究的目的是开发一种有效的方法来表征长纤维CF的纤维长度分布。对于这种方法，从80毫米短纤维CF制成的条子中提取纤维胡须标本，然后对其进行扫描。灰度值密度（GD）的各个长度类别是由扫描图像确定的，它对应于每个长度类别的纤维数量。根据各长度类别的比例，可以编制出跨度长度图和短纤维长度图。结果表明，该方法在长纤纤维长度测量中具有良好的应用前景。
For the manufacturing of load-bearing carbon fibre reinforced plastics (CFRP) made from staple carbon fibres (CF), statements of the CF fibre length in the composite are essential. However, no suitable fibre length measuring method is currently available for long staple CF over 60 mm. The aim of this study is the development of an effective method for characterization of the fibre length distribution of long staple CF. For this method, a fibre beard specimen is extracted from a sliver manufactured from 80 mm staple CF, which is then scanned. Greyscale values densities (GD) of the individual length classes are determined from the scanned images, which correspond to the number of fibres per length class. From the proportion of all length classes, a span length diagram and staple fibre length diagram can be compiled. The results show the good potential of the method developed for the fibre length measurement of long staple CF.