中国塑料 ›› 2025, Vol. 39 ›› Issue (10): 33-38.DOI: 10.19491/j.issn.1001-9278.2025.10.007

• 材料与性能 • 上一篇    下一篇

PC/ABS合金专用改性ABS的研究

李鑫宇1, 陆书来2, 王立伟2, 许超1, 牛经鹏3, 马晓坤1()   

  1. 1.吉林化工学院,吉林 吉林 132000
    2.吉林石化ABS树脂研发中心,吉林 吉林 132000
    3.中车长春轨道客车股份有限公司,长春 130000
  • 收稿日期:2024-11-07 出版日期:2025-10-26 发布日期:2025-10-21
  • 通讯作者: 马晓坤(1980-),女,副教授,博士,主要从事表面改性及复合材料制备方面的研究,mxk⁃xshx@163.com
    E-mail:xshx@163.com

Study on ABS specially used for modification of PC/ABS alloys

LI Xinyu1, LU Shulai2, WANG Liwei2, XU Chao1, NIU Jingpeng3, MA Xiaokun1()   

  1. 1.Jilin Institute of Chemical Technology,Jilin 132000,China
    2.Jilin Petrochemical ABS Resin R&D Center,Jilin 132000,China
    3.CRRC Changchun Railway Coach Co,Ltd,Changchun 130000,China
  • Received:2024-11-07 Online:2025-10-26 Published:2025-10-21
  • Contact: MA Xiaokun E-mail:xshx@163.com

摘要:

在传统的丙烯腈⁃丁二烯⁃苯乙烯共聚物(ABS)乳液接枝聚合中加入甲基丙烯酸缩水甘油酯(GMA),制得了改性ABS,然后与聚碳酸酯(PC)共混挤出,制得了PC/改性ABS复合材料。结果表明,GMA中的环氧基团能与PC的端羟基和端羧基反应,从而提升合金的相容性,且加入10 g GMA制备的改性ABS制作的PC/ABS合金综合性能最好,冲击强度由47 kJ/m2提升到55.5 kJ/m2,PC/ABS的断裂伸长率由48 %提升到70 %。

关键词: 聚碳酸酯, 丙烯腈?丁二烯?苯乙烯共聚物, 甲基丙烯酸缩水甘油酯, 环氧基团功能化, 力学性能

Abstract:

To enhance the compatibility of polycarbonate (PC)/acrylonitrile⁃butadiene⁃styrene (ABS) blends, a modified ABS was synthesized via emulsion grafting polymerization with glycidyl methacrylate (GMA). This GMA⁃modified ABS was subsequently melt⁃blended with PC. The epoxy groups of GMA were found to react effectively with the terminal hydroxyl and carboxyl groups of the PC chains, serving as a compatibilizer at the polymer interface. This reaction significantly improved the miscibility between the two phases. The optimal mechanical properties were achieved with a GMA loading of 10 g, resulting in a PC/ABS alloy with notch impact strength of 55.5 kJ/m² and elongation at break of 70 %. These values represent an 18 % increase in impact strength and a 46 % improvement in ductility over the uncompatibilized control blend. This work demonstrates an effective reactive compatibilization strategy for developing high⁃performance PC/ABS alloys.

Key words: polycarbonate, acrylonitrile?butadiene?styrene copolymer, glycidyl methacrylate, functionalization of epoxy groups, mechanical property

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