环氧改性热固性酚醛纤维的制备及性能

IF 3.2 3区化学 Q2 POLYMER SCIENCE

e-Polymers Pub Date : 2023-01-01 DOI:10.1515/epoly-2022-8085

YaoWen Yin, M. Jiao, AnFei Liu, Hao Wang, Yang Liu, Y. Liu, Kaifeng Yang, Genxing Zhu

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引用次数: 0

摘要

摘要本文首次提出了微波热固化（MTC）环氧树脂改性酚醛纤维的制备方法。以苯酚、甲醛和环氧氯丙烷为原料，在酸性条件下制备环氧改性热塑性酚醛树脂，然后与甲醛进行加成反应，得到环氧改性热固性酚醛树脂，通过湿法纺丝将其转化为新生纤维。最后，通过溶液固化、溶液热固化、微波固化、MTC等不同固化方法制备了环氧改性酚醛纤维，并通过红外光谱、显微红外成像、核磁共振、热重分析和扫描电子显微镜对其进行了表征。实验结果表明，MTC环氧改性酚醛纤维具有最佳的力学性能，其极限伸长率为4%，断裂强度为133 MPa。图形摘要

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Preparation and properties of epoxy-modified thermosetting phenolic fiber

Abstract This article proposes the preparation and microwave thermal cured (MTC) epoxy-modified phenolic fibers for the first time. Epoxy-modified thermoplastic phenolic resin was first prepared in acidic condition using phenol, formaldehyde, and epichlorohydrin as the reactants, and then underwent additive reaction with formaldehyde to obtain epoxy-modified thermosetting phenolic resin, which was converted into nascent fibers through wet spinning. Finally, epoxy-modified phenolic fibers were obtained through different curing methods including solution cured, solution thermal cured, microwave cured, MTC, and was characterized by infrared spectroscopy, microscopic infrared imaging, nuclear magnetic resonance, thermogravimetric analysis, and scanning electron microscopy. The experiment results show that MTC epoxy-modified phenolic fibers have optimal mechanical property with ultimate elongation of 4% and breaking strength of 133 MPa. Graphical abstract

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来源期刊

e-Polymers 化学-高分子科学

CiteScore

5.90

自引率

10.80%

发文量

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.