Recyclable fully biobased high-performance epoxy thermosets

IF 5.6 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products Pub Date : 2024-09-14 DOI:10.1016/j.indcrop.2024.119645

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Abstract

Thermosetting polymeric materials play a pivotal role in numerous sectors due to their versatility in tailoring physicochemical and mechanical properties and their exceptional performances. The aim of this study is to design 100 % bio-based high performant and recyclable thermosets. To achieve this goal, a natural and renewable-based epoxy monomer, triglycidyl ether of phloroglucinol (TGPh), was crosslinked with biobased anhydrides to create novel polymeric resins. Through detailed investigations, it was found that the designed materials have storage moduli values at room temperature ranging from 2.1 to 3.4 GPa, with damping factors spanning from 86 °C to 163 °C depending on the nature of the anhydride. Tensile tests corroborated the performant mechanical properties of the designed bio-resins, showing Young's modulus values ranging from 1.2 to 1.5 GPa. Furthermore, the water absorption values are very low, ranging from 0.25 % to 0.35 %. Besides, the designed bio-resins exhibited rapid dissolution in TBD/EG solution, as well as thermo-mechanical reprocessability.

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可回收的全生物基高性能环氧热固性塑料

热固性聚合物材料因其在定制物理化学和机械性能方面的多功能性及其卓越的性能，在众多领域发挥着举足轻重的作用。本研究的目的是设计 100% 生物基高性能可回收热固性材料。为实现这一目标，一种天然的可再生环氧单体--氯代葡糖醇三缩水甘油醚（TGPh）与生物基酸酐进行交联，从而制造出新型聚合物树脂。通过详细研究发现，所设计的材料在室温下的储存模量值为 2.1 至 3.4 GPa，阻尼系数在 86 °C 至 163 °C 之间，具体取决于酸酐的性质。拉伸测试证实了所设计的生物树脂具有良好的机械性能，其杨氏模量值在 1.2 至 1.5 GPa 之间。此外，吸水率非常低，在 0.25 % 至 0.35 % 之间。此外，所设计的生物树脂还能在 TBD/EG 溶液中快速溶解，并具有热机械再加工性。

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

Industrial Crops and Products 农林科学-农业工程

CiteScore

9.50

自引率

8.50%

发文量

1518

审稿时长

43 days

期刊介绍： Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.

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