增塑剂
热塑性塑料
材料科学
淀粉
挤压
混合(物理)
复合材料
纳米纤维素
纤维素
生物高聚物
高分子科学
化学工程
聚合物
化学
工程类
物理
量子力学
生物化学
作者
Francisco A. Cataño,Viviana Moreno‐Serna,Alejandro Cament,Carlos Loyo,Mauricio Yáñez‐S,J. Andrés Ortiz,Paula Andrea Zapata
标识
DOI:10.1016/j.ijbiomac.2023.125939
摘要
Starch is a biodegradable biopolymer, a sustainable material that can replace conventional petrochemical-based plastics. However, starch has some limitations, as it must be processed by heating and treated mechanically with a plasticizer to become thermoplastic starch (TPS). Different variables such as mixing speeds, amount, and kind of plasticizers play a vital role in preparing TPS by melting. Despite this, the properties of the TPS are not comparable with those of traditional plastics. To overcome this limitation, microcellulose or nanocellulose is added to TPS by melt mixing, including the extrusion and internal mixing process, which enables large-scale production. This review aims to compile several studies that evaluate the effect of plasticizers, as well as the relevance of incorporating different cellulosic fillers of different dimensions on the properties of TPS obtained by melt mixing. Potential applications of these materials in food packaging, biomedical applications, and other opportunities are also described.
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