Materials Reports  2020, Vol. 34 Issue (Z1): 539-541 |
| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Measurement of Linear Expansion Coefficient of Bamboo Winding Composites |
| SUN Yuanping1,2, YAO Yiheng1,2, ZHANG Shuxian1,2, MA Jianxin1,2, WENG Yun1,2
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1 Zhejiang Xinzhou Bamboo-based Composites Technology Company, Hangzhou 310000, China;
2 State Forestry and Grassland Administration Engineering Research Center for Bamboo Winding Composites, Hangzhou 310000, China |
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Abstract In order to accurately calculate the change of product size of bamboo winding composite material with different temperature, the linear expansion coefficients of bamboo winding composites in both longitudinal and transverse directions were measured by using the linear expansion tester in the temperature range of 233—353 K(-40—80 ℃). Test results indicate that the average linear expansion coefficient of bamboo winding compo-sites is 2.31×10-5 K-1 in the transverse direction and 1.06×10-5 K-1 in the longitudinal direction. According to the analysis, the difference of linear expansion coefficient in the two directions is caused by the fact that the bamboo is an anisotropic material.
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Published: 01 July 2020
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| Fund:This work was financially supported by the National Key Research and Development Program of China (2016YFD0600906). |
| About author:: Yuanping Sun received his master degree in applied chemistry from the Northeast Forestry University in 2010—2013. Now, he works as a composite material engineer in Zhejiang Xinzhou Bamboo-based Composites Technology Company, mainly engaged in the research and development of composite materials and bamboo winding composite materials and new products. |
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