1)深圳大学化学与环境工程学院,广东深圳518060; 2)广州市金发科技股份有限公司,广东广州 510020

复合材料; 聚酰胺6; 丙烯腈-丁二烯-苯乙烯共聚物; 共混改性; 微观结构; 相容性; 反应性增容剂; 接枝反应

Microstructure and compatibility of PA6/ABS blends
NI Zhuo1, GUO Zhen1, LIN Yuhao1, JIANG Sujun2, and CHAI Xiaoyan1

1)College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, P.R.China2)Guangzhou Blonde Technology Co., Ltd., Guangzhou 510020, Guangdong Province, P.R.China

combined material; polyamide 6; acrylonitrile-butadiene-styrene copolymer; blending and modification; microscopic structure; compatibility; reactive compatibilizer; grafting chemical reaction

DOI: 10.3724/SP.J.1249.2019.04398


为改善PA6/ABS共混材料的微观结构与相容性,提高该共混材料的性能, 分析了聚酰胺6(polyamide 6, PA6)结晶行为、丙烯腈-丁二烯-苯乙烯共聚物(acrylonitrile-butadiene-styrene copolymer, ABS)“核-壳”结构、共混物组成和工艺等条件对PA6/ABS共混材料微观结构与相容性的影响,介绍环氧型和酸酐型反应性增容剂对PA6/ABS共混材料微观结构与性能的影响及其作用机理,并对PA6/ABS共混材料的理论研究和工程应用进行评述. 分析表明,随着PA6/ABS共混材料中组分ABS含量增多,PA6的微观形貌由球晶向片晶转变,且ABS“核-壳”结构颗粒可有效增韧PA6; 反应性增容剂与PA6/ABS共混材料发生的接枝反应可降低界面张力,使分散相颗粒分布均匀.

Aiming at improving microstructure and compatibility of polyamide 6/acrylonitrile-butadiene-styrene copolymer(PA6/ABS)blend materials, and enhancing their properties, this paper investigates some influence factors on the microstructure and compatibility of the PA6/ABS blend materials, including crystallization behavior of PA6, ABS “core-shell” structure, blend composition and process. Especially, this paper reports the effect and mechanism of epoxy and anhydride types of reactive compatibilizers on the microstructure and properties of PA6/ABS blend materials. Additionally, this paper summarizes theoretical research and engineering application of PA6/ABS blends. The results show that with the increase of ABS content in PA6/ABS blend materials, the morphology of PA6 changes from spherical crystal to sheet crystal, and ABS particles with “core-shell” structure can effectively toughen PA6, The grafting chemical reaction, which occurs between reactive compatibilizers and PA6/ABS blend materials, reduces the interfacial tension and makes uniform distribution of dispersed phase particles.