Optimizing curing agent ratios for high-performance thermosetting phthalonitrile-based glass fibers

IF 1.9 4区材料科学 Q3 Materials Science

Science and Engineering of Composite Materials Pub Date : 2023-01-01 DOI:10.1515/secm-2022-0210

Joonkee Lee, E. Jeon, J. Song, Yujin Son, Jaeho Choi

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引用次数: 0

Abstract

Abstract Phthalonitrile (PN) is a highly promising material in the field of high-performance thermosetting polymers due to its ability to maintain its properties even at extremely high temperatures. The goal of this study was to investigate the effects of varying curing agents on the thermal properties of cured PN resin. The curing agents were found to effectively cure the resin, as indicated by the increasing ratio of N and S contents and decreasing the C content as the proportion of curing agents increased, as observed by scanning electron microscopy and energy dispersive X-ray spectroscopy data analyses. Moreover, thermogravimetric analyses revealed that the sample with 20% curing agent showed the highest thermal decomposition rate among the 2, 5, 10, and 20% curing agent dosages. These properties can be further improved by incorporating glass fibers. Overall, these results demonstrate the successful use of curing agents to create an efficient and functional polymer with superior thermal properties that are suitable for use in harsh environments. The findings of this study are a significant step forward in advancing the use of PN as a high-performance thermosetting polymer.

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高性能热固性邻苯二甲腈基玻璃纤维固化剂配比的优化

摘要邻苯二甲腈（PN）在高性能热固性聚合物领域是一种非常有前途的材料，因为它即使在极高的温度下也能保持其性能。本研究的目的是研究不同固化剂对固化PN树脂热性能的影响。通过扫描电子显微镜和能量色散X射线光谱数据分析观察到，固化剂可以有效地固化树脂，表现为随着固化剂比例的增加，N和S含量的比例增加，C含量降低。此外，热重分析显示，在2、5、10和20%的固化剂剂量中，含有20%固化剂的样品显示出最高的热分解率。通过掺入玻璃纤维可以进一步改善这些性能。总的来说，这些结果证明了固化剂的成功使用，以创造出一种具有优异热性能的高效功能聚合物，适用于恶劣环境。这项研究的发现是在推进PN作为高性能热固性聚合物的使用方面迈出的重要一步。

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

Science and Engineering of Composite Materials 工程技术-材料科学：复合

CiteScore

3.10

自引率

5.30%

发文量

审稿时长

4 months

期刊介绍： Science and Engineering of Composite Materials is a quarterly publication which provides a forum for discussion of all aspects related to the structure and performance under simulated and actual service conditions of composites. The publication covers a variety of subjects, such as macro and micro and nano structure of materials, their mechanics and nanomechanics, the interphase, physical and chemical aging, fatigue, environmental interactions, and process modeling. The interdisciplinary character of the subject as well as the possible development and use of composites for novel and specific applications receives special attention.