Design of a novel bio-based inherent flame-retardant epoxy resin with anti-dripping, self-healing and reprocessability and its recycling in durable multifunctional Lyocell fabric

IF 13.2 1区工程技术 Q1 ENGINEERING, CHEMICAL Chemical Engineering Journal Pub Date : 2025-02-02 DOI:10.1016/j.cej.2025.160196

Chunlong Zuo, Yongli Zhang, Wei Tan, Jieyun Zhao, Lina Jiang, Yuanlin Ren, Xiaohui Liu

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Abstract

Traditional epoxy resins are manufactured from non-renewable fossil resources and suffer from several drawbacks, including poor flame retardancy, non-reprocessability and recycling difficulties, greatly affecting their wider applications. To address these issues, an inherent flame-retardant epoxy resin (L-Trp@PA/TPEP) was synthesized from biomass tea polyphenols, L-tryptophan, phytic acid and epichlorohydrin. L-Trp@PA/TPEP achieved a limiting oxygen index (LOI) value of 36.4%, with excellent anti-dripping, self-healing and reprocessability. Additionally, due to the limited number of reprocessable cycles, a versatile durable Lyocell fabric (L-Trp@PA/TPEP/Lyocell) was fabricated by finishing with the recycling of non-reprocessable L-Trp@PA/TPEP. L-Trp@PA/TPEP/Lyocell showed an LOI value of 34.5% and ultraviolet protection factor of 137.29. The elongation at break and tensile strength of modified Lyocell fabric increased by 19.2% and 33.6%. In addition, the modified fabric had favorable chemical resistance without mechanical deterioration within the pH range of 1 to 13. Besides, L-Trp@PA/TPEP/Lyocell displayed remarkable anti-fouling and self-cleaning capabilities. This work proposed a comprehensive and eco-friendly approach in terms of raw materials, application and recycling, which was significant for the development of sustainable novel materials and multifunctional textiles.

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设计一种新型生物基固有阻燃环氧树脂，该树脂具有防滴落、自修复和可再加工性，并可在耐用的多功能 Lyocell 织物中循环使用

传统的环氧树脂是由不可再生的化石资源制造的，并且存在阻燃性差、不可再加工和回收困难等缺点，极大地影响了其更广泛的应用。为了解决这些问题，以生物质茶多酚、l -色氨酸、植酸和环氧氯丙烷为原料合成了一种固有阻燃环氧树脂（L-Trp@PA/TPEP）。L-Trp@PA/TPEP的极限氧指数（LOI）为36.4%，具有良好的抗滴性、自愈性和再加工性。此外，由于可重复处理的循环次数有限，一种多功能耐用的Lyocell织物（L-Trp@PA/TPEP/Lyocell）是通过回收不可重复处理的L-Trp@PA/TPEP来制造的。L-Trp@PA/TPEP/Lyocell的LOI值为34.5%，紫外线防护系数为137.29。改性Lyocell织物的断裂伸长率和抗拉强度分别提高了19.2%和33.6%。此外，改性后的织物在1 ~ 13的pH范围内具有良好的耐化学性，无机械劣化。此外，L-Trp@PA/TPEP/Lyocell具有显著的防污和自清洁能力。本研究从原料、应用和回收等方面提出了一种综合、环保的方法，对开发可持续发展的新型材料和多功能纺织品具有重要意义。

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产品信息

阿拉丁

sodium hydroxide

阿拉丁

N,N-dimethylformamide

来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.