基于动态硼酸酯键的可重塑酚醛树脂及其复合材料

doi:10.19936/j.cnki.2096-8000.20241228.005

复合材料科学与工程 ›› 2024, Vol. 0 ›› Issue (12): 34-42.DOI: 10.19936/j.cnki.2096-8000.20241228.005

基于动态硼酸酯键的可重塑酚醛树脂及其复合材料

行小龙^1,2,3, 黄金鑫¹, 张健¹, 刘祎¹, 阮英波^1,2,3, 张承双^1,2,3

1.西安航天复合材料研究所,西安 710025;
2.陕西省航天复合材料重点实验室,西安 710025;
3.西安市先进聚合物基复合材料重点实验室,西安 710025

收稿日期:2024-07-22 出版日期:2024-12-28 发布日期:2025-01-14
作者简介:行小龙(1992—),男,博士,工程师,研究方向为树脂基烧蚀防热材料,18629251140@163.com。
基金资助:
国家重点研发计划(2022YFB3403500)

Remodelable phenolic resin and its composites based on dynamic boronic ester bonds

XING Xiaolong^1,2,3, HUANG Jinxin¹, ZHANG Jian¹, LIU Yi¹, RUAN Yingbo^1,2,3, ZHANG Chengshuang^1,2,3

1. Xi’an Aerospace Composites Research Institute, Xi’an 710025, China;
2. Shaanxi Key Laboratory of Aerospace Composites, Xi’an 710025, China;
3. Xi’an Key Laboratory of Advanced Polymer Composites, Xi’an 710025, China

Received:2024-07-22 Online:2024-12-28 Published:2025-01-14

摘要/Abstract

摘要： 针对传统酚醛树脂基复合材料不具备可重塑性的问题,采用水热法制备了一种侧基含有苯基硼酸结构的新型含硼酚醛树脂(BNR),加热固化后可以形成具备可重塑性能的硼酸酯交联型酚醛树脂。研究结果表明:通过水热法可以高效地制备出BNR树脂,产率可达到94.1%;不需要外加固化剂,BNR在160 ℃下加热即可固化;固化树脂具有高热稳定性,成炭率可以达到66%,可以用作耐烧蚀复合材料基体;与传统的酚醛树脂相比,硼酸酯交联型酚醛树脂在热的作用下可以实现完全的应力松弛,赋予复合材料优异的可重塑性。因此,BNR树脂有作为新型耐烧蚀复合材料树脂基体的潜力。

关键词: 酚醛树脂, 硼酸酯, 可重塑, 耐烧蚀复合材料

Abstract: A novel boron-containing phenolic resin (BNR) with a phenylboronic acid structure as side groups was successfully synthesized using a hydrothermal method to address the issue of none remouldability in traditional phenolic resin-based composites. The BNR resin demonstrated a high yield of 94.1% and could be efficiently prepared. Upon heating at 160 ℃, the BNR resin underwent curing without any curing agents, forming a boronic ester cross-linked phenolic resin with reshaping ability. The cured resin exhibited remarkable thermal stability, with a carbon yield of 66%, making it suitable as a flame-retardant composite matrix. Furthermore, compared to traditional phenolic resins, the phenolic resin with boronic ester cross-linkages displayed complete stress relaxation under heat and imparted excellent remouldability to the composites. These findings highlight the potential of the BNR resin as a promising candidate for the development of advanced and versatile ablative composites.

Key words: phenolic resin, boronic ester, remouldability, ablative composite

中图分类号:

TB332

行小龙, 黄金鑫, 张健, 刘祎, 阮英波, 张承双. 基于动态硼酸酯键的可重塑酚醛树脂及其复合材料[J]. 复合材料科学与工程, 2024, 0(12): 34-42.

XING Xiaolong, HUANG Jinxin, ZHANG Jian, LIU Yi, RUAN Yingbo, ZHANG Chengshuang. Remodelable phenolic resin and its composites based on dynamic boronic ester bonds[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(12): 34-42.

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基于动态硼酸酯键的可重塑酚醛树脂及其复合材料

Remodelable phenolic resin and its composites based on dynamic boronic ester bonds

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