Abstract
This article aims to present an improved technique for the mechanical characterization of single plant fibers. In particular, our efforts lie in resolving the difficulties involved in the testing of short plant fibers with only a few millimeters in length and tens of microns in width. Such fibers are potentially used as reinforcement phase in polymer composites. A special fiber gripping system, consisting of a pair of fiber clamps, a 3D positioning stage and two digital microscopes, was developed and combined to a small commercial mechanical tester. The resultant testing system possesses great convenience and reliability for the installation, orientation adjustment, and gripping of short plant fibers, as well as powerful control and data analysis functions. The equipment was then applied to the mechanical characterization of single bamboo fibers under air-dried state. Furthermore, the capability of this equipment for studying moisture content-related mechanical and viscoelastic properties of bamboo fibers was also successfully demonstrated.
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Acknowledgements
We would like to thank 11th Five Years Key Technology R&D Program (2008BADA9B01), “948” Project of State Forestry Administration (2006-4-104) and National Natural and Science Foundation of China (30730076) for financial support. Dr Les Groom is greatly appreciated for the help in the development of devices for microtension of single fibers.
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Yan Yu, Benhua Fei, and Ge Wang contributed equally to this article.
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Yu, Y., Jiang, Z., Fei, B. et al. An improved microtensile technique for mechanical characterization of short plant fibers: a case study on bamboo fibers. J Mater Sci 46, 739–746 (2011). https://doi.org/10.1007/s10853-010-4806-8
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DOI: https://doi.org/10.1007/s10853-010-4806-8