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Effect of matrix composition on the performance of calcium carbonate filled poly(lactic acid)/poly(butylene adipate-co-terephthalate) composites

IF 3.2 3区化学 Q2 POLYMER SCIENCE

e-Polymers Pub Date : 2023-01-01 DOI:10.1515/epoly-2023-0026

Zhenyu Guo, Weiqiang Song, Xueqin Wei, Yu Feng, Yixuan Song, Zidong Guo, Wenxi Cheng, Wei Miao, Bo Cheng, Shiping Song

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引用次数: 1

Abstract

Abstract The ratio of poly(lactic acid) (PLA), poly(butylene adipate-co-terephthalate) (PBAT), and calcium carbonate (CaCO3) fillers in PLA/PBAT/CaCO3 composites was set at 90/10/5, 70/30/5, and 30/70/5. The effect of nano- and micro-CaCO3 on the melting and crystallization performance of the composites was investigated by differential scanning calorimetry. PLA crystallization was related to the PLA and PBAT ratio, cooling rate, and CaCO3 particle size in PLA/PBAT/CaCO3 composites. Nano-CaCO3 prevented the crystallization of PLA in PLA/PBAT/CaCO3 90/10/5 and 70/30/5 but did not prevent the crystallization of PLA in PLA/PBAT/CaCO3 30/70/5. Unlike nano-CaCO3, micro-CaCO3 did not prevent PLA crystallization regardless of the PLA and PBAT ratio. Nano- and micro-CaCO3 enhance PLA90 and PLA70 to some extent, due to the aggregation and dissociation of the CaCO3 filler in polylactic acid. But nano- and micro-CaCO3 improved the mechanical properties of PLA30 several times, due to the good compatibility of the CaCO3 filler and PBAT. The effect of nano-CaCO3 and micro-CaCO3 on the mechanical properties of PLA/PBAT/CaCO3 composites had no significant difference.

查看原文本刊更多论文

基质组成对碳酸钙填充聚乳酸/聚己二酸丁二酯-对苯二甲酸酯复合材料性能的影响

摘要将聚乳酸(PLA)、聚己二酸丁二醇酯(PBAT)、碳酸钙(CaCO3)填充剂在PLA/PBAT/CaCO3复合材料中的配比分别设定为90/10/5、70/30/5和30/70/5。采用差示扫描量热法研究了纳米和微caco3对复合材料熔融和结晶性能的影响。PLA/PBAT/CaCO3复合材料中PLA与PBAT的配比、冷却速率和CaCO3的粒径与PLA结晶有关。纳米CaCO3对PLA/PBAT/CaCO3 90/10/5和70/30/5中PLA的结晶有抑制作用，但对PLA/PBAT/CaCO3 30/70/5中PLA的结晶没有抑制作用。与纳米caco3不同，无论PLA和PBAT的比例如何，微caco3都不会阻止PLA的结晶。纳米和微CaCO3在一定程度上增强了PLA90和PLA70，这是由于CaCO3填料在聚乳酸中的聚集和解离作用。但由于CaCO3填料与PBAT的良好相容性，纳米和微CaCO3使PLA30的力学性能提高了数倍。纳米CaCO3和微CaCO3对PLA/PBAT/CaCO3复合材料力学性能的影响无显著差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

e-Polymers

e-Polymers 化学-高分子科学

CiteScore

5.90

自引率

10.80%

发文量

64

审稿时长

6.4 months

期刊介绍： e-Polymers is a strictly peer-reviewed scientific journal. The aim of e-Polymers is to publish pure and applied polymer-science-related original research articles, reviews, and feature articles. It includes synthetic methodologies, characterization, and processing techniques for polymer materials. Reports on interdisciplinary polymer science and on applications of polymers in all areas are welcome. The present Editors-in-Chief would like to thank the authors, the reviewers, the editorial staff, the advisory board, and the supporting organization that made e-Polymers a successful and sustainable scientific journal of the polymer community. The Editors of e-Polymers feel very much engaged to provide best publishing services at the highest possible level.

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