Preparation of super-toughened PA6 with submicron-sized ABS by in situ reactive extrusion method

•ABS/PA6 in situ compatibilized blends were fabricated by reactive extrusion.•Submicron-sized ABS droplets uniformly distributed in PA6 matrix.•The super toughened blend was available for 15% reactive blend (617 J/m). To improve the toughness of polyamide 6, ABS/PA6 blends were prepared by reactive...

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Bibliographic Details
Published in:Materials letters 2019-09, Vol.251, p.18-22
Main Authors: Zhao, Dajiang, Yan, Dongguang, Zhang, Na, Yang, Guisheng
Format: Article
Language:English
Subjects:
Caprolactam
Extrusion
Impact strength
Materials science
Mechanical properties
Microstructure
Morphology
PA6
Polyamide resins
Polymer blends
Reactive extrusion
Ring opening polymerization
Shearing
Super-toughened
Toughness
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Summary:•ABS/PA6 in situ compatibilized blends were fabricated by reactive extrusion.•Submicron-sized ABS droplets uniformly distributed in PA6 matrix.•The super toughened blend was available for 15% reactive blend (617 J/m). To improve the toughness of polyamide 6, ABS/PA6 blends were prepared by reactive extrusion via anionic ring opening polymerization of ε-caprolactam. The morphology and mechanical properties showed that ABS played a critical role in the compatibility, morphology, and toughness of reactive blends. Submicron-sized ABS was evenly dispersed in PA6 by in situ compatibilizing and strong shearing of double screws. By optimizing ABS contents, super toughened PA6 can be obtained, as evidenced by the significant improvement in the impact strength. This indicated the in situ reactive extrusion method should be useful for production of ABS/PA6 blends.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2019.05.029