复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (9): 42-46.DOI: 10.19936/j.cnki.2096-8000.20250928.006

• 基础与力学性能研究 • 上一篇    下一篇

接枝改性高耐热乙烯基树脂的合成及性能表征研究

刘华1, 汤文进2, 刘正彪1, 陈建辉1, 舒达1, 刘世强1   

  1. 1.华东理工大学华昌聚合物有限公司 上海防腐蚀新材料工程技术研究中心,上海200237;
    2.浙江天振科技股份有限公司,浙江313300
  • 收稿日期:2024-07-10 发布日期:2025-10-23
  • 作者简介:刘华(1985—),男,博士研究生,高级工程师,研究方向为功能高分子材料、热固性复合材料,15121038968@163.com。

Synthesis and characterization of graft modified high heat-resistant vinyl resin

LIU Hua1, TANG Wenjin2, LIU Zhengbiao1, CHEN Jianhui1, SHU Da1, LIU Shiqiang1   

  1. 1. Shanghai Anti Corrosion New Materials Engineering Technology Research Center, Sino Polymer Co., Ltd., Shanghai 200237, China;
    2. Zhejiang Tianzhen Technology Co., Ltd., Zhejiang 313300, China
  • Received:2024-07-10 Published:2025-10-23

摘要: 本文以甲基丙烯酸羟乙酯(HEMA)、季戊四醇三丙烯酸酯(PETA)和二季戊四醇五丙烯酸酯(DPHA)为原料,分别与异佛尔酮二异氰酸酯(IPDI)以摩尔比为1∶1进行反应,得到三种丙烯酸酯预聚物。然后通过二月桂酸二丁基锡(DBTDL)催化,将预聚物接枝到酚醛环氧乙烯基树脂上,研究了不同丙烯酸酯接枝乙烯基树脂的热变形温度(Heat Distortion Temperature,HDT),玻璃化转变温度(Tg)、热分解温度。结果表明:20wt% DPHA预聚物接枝改性的乙烯基树脂耐热性能最好,其HDT为230 ℃,Tg为220 ℃,5wt%热分解温度约为330 ℃。

关键词: 丙烯酸酯, 乙烯基树脂, 耐热性, 接枝改性

Abstract: Three acrylate prepolymers were synthesized from hydroxyethyl methacrylate (HEMA), pentaerythritol triacrylate (PETA) or dipentaerythritol pentaacrylate (DPHA) and isophorone diisocyanate, reacting at a molar ratio of 1∶1. Then the prepolymers were grafted to phenolic vinyl ester resins by the catalysis of dibutyltin dilaurate (DBTDL). The heat distortion temperature (HDT), glass transition temperature (Tg), and thermal decomposition temperature of different acrylate grafted vinyl resins were studied. It is revealed that 20wt% DPHA prepolymer graft vinyl resin behaved the best heat resistant property, with HDT of 230 ℃, Tg of 220 ℃ and 5wt% thermal decomposition temperature of about 330 ℃.

Key words: acrylic ester, vinyl resin, heat resistance, graft modification

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