金刚烷型双马来酰亚胺树脂共聚体系的固化成型与性能研究

doi:10.3969/j.issn.2095-2198.2023.01.006

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针对二苯甲烷型双马来酰亚胺树脂成型工艺及耐热性能不足的问题，在二烯丙基双酚A改性二苯甲烷型双马来酰亚胺树脂（简称BD树脂）体系中加入高耐热金刚烷型双马来酰亚胺形成共聚体系.采用Kissinger方程研究了金刚烷结构引入前后共聚体系的固化过程及动力学，研究了共聚体系固化产物的力学性能及微观形貌.结果表明：引入金刚烷型双马来酰亚胺可提高BD树脂的耐热性，其中40%热失重温度提高20 ℃以上；该共聚体系固化产物具有良好的力学性能，弯曲强度达117.4 MPa；金刚烷型双马来酰亚胺引入后，“ene”固化反应的表观活化能降低，“Diels-Alder”固化反应的表观活化能升高，反应级数0.9左右.金刚烷型双马来酰亚胺树脂共聚体系的耐热性、力学性能等综合性能良好，成型加工工艺得到优化.

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关键词: 双马来酰亚胺')" href="#">

双马来酰亚胺金刚烷热性能固化动力学力学性能

Abstract:

In order to improve the molding process and properties,the adamantane type bismaleimide with high heat resistant was added into the diallyl bisphenol a modified bismaleimide resin(BD resin) to form a copolymerization system.The curing process and kinetics of the copolymerization system with or without the introduction of adamantane structure were studied by using Kingger equation.At the same time,the mechanical properties and microstructure of the curing products were studied.The results showed that the heat resistance of BD resin was increased due to the introduction of adamantane structure,and the 40% weight loss temperature was increased by more than 20 ℃.The cured products of the copolymerization system had good mechanical properties and the bending strength was up to 117.4 MPa.After the introduction of amantadane type bismaleimide,the apparent activation energy of ‘ene’ curing reaction decreased,while that of ‘Diels-Alder’ curing reaction increased,and the reaction order was about 0.9.Therefore,the amantadane bismaleimide resin copolymerization system had excellent comprehensive properties such as heat resistance,mechanical properties,and the processability had been optimized.

Key words: bismaleimide')" href="#">

bismaleimide adamantane thermal properties curing kinetics mechanical properties

出版日期: 2023-02-27 发布日期: 2024-06-06 整期出版日期: 2023-02-27

ZTFLH:

TQ322.4

基金资助:

辽宁省高校创新人才计划（LR2018013）；沈阳市中青年创新人才计划（RC190326）

作者简介: 马亚辉（1995—），男，河南周口人，硕士研究生在读，主要从事高性能树脂合成与改性的研究.

引用本文:

马亚辉, 王建, 牛永安.

金刚烷型双马来酰亚胺树脂共聚体系的固化成型与性能研究 [J]. 沈阳化工大学学报, 2023, 37(1): 37-43.
MA Yahui, WANG Jian, NIU Yongan.

Curing Process and Properties of Adamantane Bismaleimide Resin Copolymerization System . Journal of Shenyang University of Chemical Technology, 2023, 37(1): 37-43.

链接本文:

https://xuebao.syuct.edu.cn/CN/10.3969/j.issn.2095-2198.2023.01.006 或 https://xuebao.syuct.edu.cn/CN/Y2023/V37/I1/37

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