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Study on the bagging behavior of knitted fabrics by shape memory polyurethane fiber |
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| Authors: | Yan Liu Jing Lu Jinlian Hu Aggie Chung |
| Affiliation: | 1. College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China.;2. Institute of Textile and Clothing, The Hong Kong Polytechnic University, Hong Kong, China.liuaynxin@hotmail.com;4. Institute of Textile and Clothing, The Hong Kong Polytechnic University, Hong Kong, China. |
| Abstract: | The shape memory polyurethane (SMPU) fabrics were knitted with different SMPU fiber contents for the investigation of its bagging behaviour in this paper. The bagging deformation and recovery of these SMPU-knitted fabrics were determined at different temperatures to evaluate its temperature sensitivity. Our experimental results show that the bagging behavior of the SMPU-knitted fabrics is highly correlated with the amount of SMPU fibers knitted inside the SMPU fabrics. The switching temperature of the SMPU-knitted fabrics is found to be above the phase transfer temperature of SMPU. A comparison between Lycra and SMPU-knitted fabrics is also conducted to validate the shape memory bagging behavior of SMPU-knitted fabrics. |
| Keywords: | bagging behavior knitted fabric SMPU fiber shape memory recovery |