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Blends of poly(2,6-dimethyl-1,4-phenylene oxide)/polyamide 6 toughened by maleated polystyrene-based copolymers : mechanical properties, morphology, and rheology
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Li, Bo, Wan, Chaoying, Zhang, Yong and Ji, Jiliang (2010) Blends of poly(2,6-dimethyl-1,4-phenylene oxide)/polyamide 6 toughened by maleated polystyrene-based copolymers : mechanical properties, morphology, and rheology. Journal of Applied Polymer Science, 115 (6). pp. 3385-3392. doi:10.1002/app.30742 ISSN 0021-8995.
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Official URL: http://dx.doi.org/10.1002/app.30742
Abstract
Poly(2,6-dimethyl-1,4-phenylene oxide)/polyamide 6 (PPO/PA6 30/70) blends were impact modified by addition of three kinds of maleated polystyrene-based copolymers, i.e., maleated styrene-ethylene-butylene-styrene copolymer (SEBS-g-MA), maleated methyl methacrylate-butadiene-styrene copolymer (MBS-g-MA), and maleated acrylonitrile-butadiene-styrene copolymer (ABS-g-MA). The mechanical properties, morphology and rheological behavior of the impact modified PPO/PA6 blends were investigated. The selective location of the maleated copolymers in one phase or at interface accounted for the different toughening effects of the maleated copolymer, which is closely related to their molecular structure and composition. SEBS-g-MA was uniformly dispersed in PPO phase and greatly toughened PPO/PA6 blends even at low temperature. MBS-g-MA particles were mainly dispersed in the PA6 phase and around the PPO phase, resulting in a significant enhancement of the notched Izod impact strength of PPO/PA6 blends from 45 J/m to 281 J/m at the MBS-g-MA content of 20 phr. In comparison, the ABS-g-MA was mainly dispersed in PA6 phase without much influencing the original mechanical properties of the PPO/PA6 blend. The different molecule structure and selective location of the maleated copolymers in the blends were reflected by the change of rheological behavior as well.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Journal of Applied Polymer Science | ||||
Publisher: | John Wiley & Sons, Inc. | ||||
ISSN: | 0021-8995 | ||||
Official Date: | 15 March 2010 | ||||
Dates: |
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Volume: | 115 | ||||
Number: | 6 | ||||
Page Range: | pp. 3385-3392 | ||||
DOI: | 10.1002/app.30742 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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