Research progress of medium and low temperature curing benzoxazine resins

doi:10.19936/j.cnki.2096-8000.20230928.018

Abstract

Abstract: In practical applications, the curing temperature of benzoxazine resin above 200 ℃ limits its large-scale use in the field of advanced composite materials, so it is of great significance to study the ring-opening polymerization mechanism of benzoxazine resin, optimize the curing characteristics of benzoxazine resin, and obtain the method to reduce the curing temperature of benzoxazine resin. This paper reviews the research progress on reducing the curing temperature of benzoxazine resin in recent years at home and abroad. The method of introducing active functional groups into benzoxazine monomer and adding curing catalyst to achieve medium-low temperature curing of benzoxazine resin was introduced in detail. The reaction mechanism was analyzed, the influencing factors of curing reaction were clarified, and the characteristics of the two kinds of methods were compared. From the molecular point of view, the introduction of active groups into monomers has higher flexibility, but the modification process is relatively complex. It is difficult to engineer large quantities of production. In comparison, the curing temperature of benzoxazine resin can be significantly reduced by adding a suitable curing catalyst, and the operation process is easy to achieve, which is one of the simplest and most effective methods at present. This review covers various studies on curing catalysts, providing insights for optimizing the curing conditions of benzoxazine resin and preparing high-performance benzoxazine resin materials.

Key words: benzoxazine resin, medium and low temperature curing, monomer modification, catalyst

CLC Number:

TB332

KANG Longzhao, FAN Chunyan, YU Haiwen, YAO Yalin. Research progress of medium and low temperature curing benzoxazine resins[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(9): 121-128.

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