塑料科技2025，Vol.53Issue(10)：1-5,5.DOI:10.15925/j.cnki.issn1005-3360.2025.10.001
羟基官能化液体丁苯橡胶的制备及改性环氧树脂研究
Preparation of Hydroxyl-functionalised Liquid Styrene Butadiene Rubber and Research on Modification of Epoxy Resins
摘要
Abstract
Hydroxyl-functionalized liquid styrene butadiene rubber(HTPB)was prepared and modified to epoxy resin(E-51)using olefin complex decomposition reaction,and the effects of Grubbs-Ⅱ catalyst dosage and 2-buten-1-ol chain transfer agent dosage on the number-average molecular weight and molecular weight distribution of HTPB were studied,and the hydroxyethyl ethylenediamine was used as the curing agent,and the E-51 epoxy resin was modified by adding HTPB with different addition amounts and different number-average molecular weights.Gel permeation chromatography test,fourier transform infrared spectroscopy,nuclear magnetic resonance hydrogen spectroscopy test,rotational viscometer,thermogravimetric analyser,electronic universal testing machine and plastic pendulum impact apparatus were used to characterise the structure and properties of the products.The results showed that 2-buten-1-ol and Grubbs-Ⅱ could regulate the number-average molecular weight and molecular weight distribution of the products.The addition of different number-average molecular weights of HTPB modified epoxy resin E-51 effectively improved the toughness of epoxy resin E-51 cures at a lower dosage of HTPB,and the tensile strength and elongation at break of the modified epoxy resin E-51 cures reached the maximum when 5 phr of HTPB with a number-average molecular weight of 10 000 g/mol were added.关键词
烯烃复分解反应/官能化液体橡胶/增韧改性/环氧树脂Key words
Olefin complex decomposition reaction/Functionalized liquid rubber/Toughening modification/Epoxy resin分类
通用工业技术引用本文复制引用
王文杰,张定军,艾纯金,张航,罗占东..羟基官能化液体丁苯橡胶的制备及改性环氧树脂研究[J].塑料科技,2025,53(10):1-5,5.基金项目
国家自然科学基金(52363010) （52363010）
