Three-dimensional crimped biodegradable poly(lactic acid) fibers prepared via melt spinning and controlled structural reorganization |
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| Authors: | Bo Yang Rui Wang Zhenfeng Dong Jing Wu Minxuan Kuang Gaoling Jin Huiling Ma Yang Wang Qingying Zhang Xiuqin Zhang |
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| Institution: | Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029 China, +86 13520886284 |
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| Abstract: | Biodegradable three-dimensional crimped fibers were prepared by the side-by-side composite spinning of poly(lactic acid) (PLA) and low-melting point PLA (LM-PLA). The structural variation of the PLA/LM-PLA composite fibers during dry and wet heat treatment was explored systematically. It is shown that crystallization and disorientation were two key factors for the formation of the three-dimensional crimped structure of PLA/LM-PLA side-by-side composite fibers (SSCF). The wet heat-treated fiber has better crimp performance and fluffiness, and the crimp number, crimp ratio and crimp elasticity ratio of the treated PLA/LM-PLA SSCF with good comprehensive properties are 21 per 25 mm, 31.9% and 81.6%, which are similar to those of industrialized PET/PTT three-dimensional crimped fibers. The results of this study shed light on the development of novel three-dimensional crimped fibers with biodegradability.Biodegradable three-dimensional crimped Poly(Lactide acid)(PLA)/low-melt point poly(Lactide acid) (LM-PLA) side-by-side composite fiber was prepared by regulating the crystallization and disorientation through dry and wet heat treatment. |
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