聚丁二酸丁二醇酯
复合数
微晶纤维素
纤维素
材料科学
复合材料
无定形固体
变形(气象学)
模数
化学
化学工程
有机化学
工程类
作者
Yang Zhang,Shiqiang Cui,Liang He,Yue Zhang,Yumei Zhang,Huaping Wang
标识
DOI:10.1016/j.carbpol.2022.120387
摘要
Biodegradable fibers have been widely developed for advanced textile fields, but their practical applications are limited by large plastic deformation. To solve this problem, we developed a solvent-free melt spinning method to prepare poly(butylene succinate)/microcrystalline cellulose (PBS/MCC) composite monofilaments. The high modulus and rigidity of MCC limit PBS plastic deformation and the in-situ formed hydrogen bonds between MCC and amorphous PBS improved MCC dispersion and led to the formation of rigid MCC physical crosslink points. The composite monofilaments with 10-25 wt% of MCC after multi-stage and high-ratio hot stretching showed a double yielding behavior and microelastic response, indicating the permanent deformation resistance of the composite monofilaments under small deformation. Moreover, the addition of MCC improved the biodegradability of the composite monofilaments after 60 days buried in soil. Therefore, our study provides a design strategy of microelastic composite monofilaments for maintaining dimensional stability during use and accelerating degradation during waste.
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