复合材料科学与工程Issue(12)：34-42,9.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
Remodelable phenolic resin and its composites based on dynamic boronic ester bonds
摘要
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 pre-pared.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.关键词
酚醛树脂/硼酸酯/可重塑/耐烧蚀复合材料Key words
phenolic resin/boronic ester/remouldability/ablative composite分类
通用工业技术引用本文复制引用
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,(12):34-42,9.基金项目
国家重点研发计划(2022YFB3403500) （2022YFB3403500）
