复合材料科学与工程 ›› 2022, Vol. 0 ›› Issue (7): 75-80.DOI: 10.19936/j.cnki.2096-8000.20220728.012

• 应用研究 • 上一篇    下一篇

超支化不饱和聚酯的制备及其应用研究

宦胜民1, 黄小波1, 杨润苗2*, 向萌2   

  1. 1.常州华日新材有限公司,常州213127;
    2.江苏理工学院 材料工程学院,常州213001
  • 收稿日期:2021-08-16 发布日期:2022-08-23
  • 通讯作者: 杨润苗(1977-),男,博士,教授,主要从事高分子材料制备及其应用方面的研究, yangrunmiao@jsut.edu.cn。
  • 作者简介:宦胜民(1968-),男,学士,工程师,主要从事不饱和聚酯的研发及其应用方面的研究。
  • 基金资助:
    国家自然科学基金(21908086)

Synthesis and application of hyperbranched unsaturated resins

HUAN Sheng-min1, HUANG Xiao-bo1, YANG Run-miao2*, XIANG Meng2   

  1. 1. Changzhou Huari New Material Co., Ltd., Changzhou 213127, China;
    2. School of Material Engineering, Jiangsu University of Technology, Changzhou 213001, China
  • Received:2021-08-16 Published:2022-08-23

摘要: 设计并合成了一种壳核型超支化不饱和聚酯。该化合物以三羟甲基丙烷和2,2-双(羟甲基)丙酸形成的超支化聚酯为核,通过长链酸对其端部进行改性,改善其黏度和溶解性。然后用甲基丙烯酸羟乙酯与异佛尔酮二异氰酸酯加成物作为外壳,对超支化聚酯进行改性,制备壳核型超支化的不饱和树脂。用傅里叶红外(FT-IR)、核磁共振(1H NMR)、热重分析(TG)等对产物进行表征与分析。同时,将所得的超支化不饱和树脂对线性不饱和聚酯进行改性,结果表明,当超支化不饱和树脂添加量为3%时,即可对不饱和聚酯有很好的韧性增强,同时保持其他的力学性能。最后研究了壳核型超支化不饱和聚酯对不饱和聚酯黏度体系的影响。

关键词: 超支化, 不饱和聚酯, 复合材料, 改性, 增韧

Abstract: A core-shell hyperbranched unsaturated polyester was designed and synthesized. The hyperbranched polyester formed by trimethylolpropane and 2,2-bis(hydroxymethyl)propionic acid as the core. The adduct of 2-hydroxyethyl methacrylate and isophorone diisocyanate was used as the outer shell. The product was characterized and analyzed by fourier infrared (FT-IR), nuclear magnetic resonance (1H NMR), and thermogravimetric analysis (TG). Finally, the obtained hyperbranched unsaturated resin is modified to linear unsaturated polyester. The results show that when the addition amount of hyperbranched unsaturated resin is 3% and it can enhance the toughness of unsaturated polyester and maintain other mechanical properties. At the same time, the effect of the shell-core hyperbranched unsaturated polyester on the viscosity system of the unsaturated polyester was also studied.

Key words: hyperbranched, unsaturated polyester, composite material, modify, toughness

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