Synergistic Effects of Maleic Anhydride and Epoxidized Palm Oil on PLA/Tapioca Starch Biocomposites

IF 3.7 4区工程技术 Q3 ENGINEERING, CHEMICAL

Advances in Polymer Technology Pub Date : 2026-06-04 DOI:10.1155/adv/3535137

Gautheman Kurup, Muhammad Fadzlee Firas Bin Mohd Fadzillah, Nishata Royan Rajendran Royan, Nabilah Afiqah Mohd Radzuan, Abu Bakar Sulong, Farrahshaida Mohd Salleh

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Abstract

The proliferation of single-use plastics (SUPs) has raised concerns about waste management and environmental sustainability. Polylactic acid (PLA) can be used as a green alternative, but its high cost and brittleness have hindered its widespread adoption. This paper explores the use of compatibilizer and plasticizer to enhance the compatibility and flexibility of PLA/tapioca starch (TS) biocomposites. Maleic anhydride (MA) was grafted to form PLA-g-MA and used as a compatibilizer followed by the addition of epoxidized palm oil (EPO) as a plasticizer. Results demonstrated an overall positive impact, indicating the opportunity to develop an optimized blend composition. Fourier transform infrared (FTIR) confirmed the presence of new functional groups, while thermal analysis indicated successful compatibilization. Plasticization was verified by a reduced T_g. Rheology confirmed pseudoplastic behavior with n value of 0.510 < n < 0.552 and activation energy (E_a) of 25.25 kJ/mol. Tensile tests showed that the addition of 5% PLA-g-MA improved the tensile strength by 13%, while the addition of 2% of EPO doubled the elongation at break. The Young’s modulus of the plasticized blend observed a decrease, which indicated improved ductility. Morphology confirmed compatibilization and demonstrated microfibrils. Overall, the PLA/tapioca biocomposite exhibited favorable properties, high quality, and cost-effectiveness, indicating good potential in short-term food packaging applications.

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马来酸酐和环氧化棕榈油对聚乳酸/木薯淀粉生物复合材料的协同作用

一次性塑料（sup）的激增引起了人们对废物管理和环境可持续性的关注。聚乳酸（PLA）可以作为绿色环保的替代品，但其高成本和脆性阻碍了其广泛应用。本文探讨了增塑剂和增塑剂对PLA/木薯淀粉（TS）生物复合材料相容性和柔韧性的影响。接枝马来酸酐（MA）形成PLA-g-MA作为相容剂，再加入环氧化棕榈油（EPO）作为增塑剂。结果显示了总体上的积极影响，表明有机会开发优化的混合成分。傅里叶变换红外（FTIR）证实了新官能团的存在，热分析表明相容化成功。通过还原Tg来验证塑化。流变学证实了假塑性行为，n值为0.510 < n < 0.552，活化能（Ea）为25.25 kJ/mol。拉伸试验表明，添加5%的PLA-g-MA可使拉伸强度提高13%，添加2%的EPO可使断裂伸长率提高一倍。塑化共混物的杨氏模量下降，表明延性提高。形态学证实了相容性和微原纤维。总体而言，聚乳酸/木薯淀粉生物复合材料具有良好的性能、高质量和成本效益，在短期食品包装方面具有良好的应用潜力。

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

Advances in Polymer Technology 工程技术-高分子科学

CiteScore

5.50

自引率

0.00%

发文量

审稿时长

9 months

期刊介绍： Advances in Polymer Technology publishes articles reporting important developments in polymeric materials, their manufacture and processing, and polymer product design, as well as those considering the economic and environmental impacts of polymer technology. The journal primarily caters to researchers, technologists, engineers, consultants, and production personnel.