Thermal decomposition behavior of self-catalyzed and fire-retardant phosphorus-nitrogen Vitrimer material

IF 5.8 2区化学 Q1 CHEMISTRY, ANALYTICAL

Journal of Analytical and Applied Pyrolysis Pub Date : 2025-02-13 DOI:10.1016/j.jaap.2025.107029

Ruei-Jing Chu , Hsu-I. Mao , Chin-Wen Chen

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引用次数: 0

Abstract

Epoxy resin (EP) encountered dual challenges of flammability and non-recyclability, prompting the proposal of covalent adaptable networks to enhance its sustainability. However, achieving strong flame-retardant performance remained a significant hurdle. In this study, diglycidyl ether of bisphenol A (DGEBA), DOPO derivatives (DDP), glutamic acid (GA), and itaconic acid (IA) were employed as raw materials to synthesize a phosphorus-nitrogen synergistic flame-retardant covalent adaptable network epoxy resin. This synthesis, which involved the introduction of secondary amines and self-catalysis, resulted in a novel material with excellent thermal stability at 349 ℃, and superior flame-retardant properties, including a limiting oxygen index of 32 % and a V-0 flammability rating. Comprehensive analysis of the material's thermal decomposition and gas-phase products was conducted using techniques such as residual carbon morphology and structure, TGA-FTIR, and TGA-GC/MS, providing deeper insights into the thermal decomposition mechanism of the material.

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来源期刊

Journal of Analytical and Applied Pyrolysis 化学-分析化学

CiteScore

9.10

自引率

11.70%

发文量

340

审稿时长

44 days

期刊介绍： The Journal of Analytical and Applied Pyrolysis (JAAP) is devoted to the publication of papers dealing with innovative applications of pyrolysis processes, the characterization of products related to pyrolysis reactions, and investigations of reaction mechanism. To be considered by JAAP, a manuscript should present significant progress in these topics. The novelty must be satisfactorily argued in the cover letter. A manuscript with a cover letter to the editor not addressing the novelty is likely to be rejected without review.