Preparation of graphene-modified PLA/PBAT composite monofilaments and its degradation behavior
文献类型： 外文期刊
作者： Liu, Wenying 1 ; Zhang, Sitong 1 ; Yang, Kaijie 1 ; Yu, Wenwen 1 ; Shi, Jiangao 3 ; Zheng, Qiang 1 ;
作者机构： 1.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China
2.Shanxi Zheda Inst Adv Mat & Chem Engn, Taiyuan 030032, Peoples R China
3.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
4.Zhejiang Univ, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
关键词： Graphene; PLA; PBAT; Monofilament; Compatibility; Degradation behavior
期刊名称：JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T （ 影响因子：6.267； 五年影响因子：6.213 ）
ISSN： 2238-7854
年卷期： 2022 年 20 卷
页码：
收录情况： SCI
摘要： The graphene-modified composite poly(lactic acid) (PLA)/poly(butylene adipate-coterephthalate) (PBAT) monofilaments were prepared by melt spinning. The effects of graphene (GR) contents on the microstructural, thermal, dynamic mechanical, and mechanical properties and the degradation behavior of the graphene-modified composite PLA/ PBAT monofilaments were studied. Scanning electron microscopy (SEM) confirmed the improved compatibility of the PLA particles in the PBAT matrix, while the transmission electron microscopy (TEM) demonstrated the size and morphology of the GR distribution in the polymer. As the GR content increased, dynamic mechanical analysis (DMA) clarified a decrease of the difference of glass transition temperature (Tg) between PLA and PBAT. In addition, the mechanical properties of the composite monofilaments were significantly enhanced at a GR content of 0.2 wt%. Weight loss rate of the composite monofilaments under soil and sea degradation conditions were obviously related to the GR content.(c) 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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