Stress-strain behavior and impact strength of polystyrene/polyamide-6 blends compatibilized with poly(styrene-g-ethylene oxide)

Summary, in English

The mechanical properties of polystyrene/polyamide-6 (50/50 wt/wt) blends were improved by additions of small amounts of poly(styrene-g-ethylene oxide) (SEO) during compounding by extrusion. Tensile testing of injection-molded samples revealed that the blends developed a yield point after addition of 1 wt % SEO. The elongation at break increased by almost a factor of 6, and the impact strength increased by a factor of 1.5 after adding 3 wt % SEO. Morphological analysis by electron microscopy showed that additions of SEO resulted in decreased domain sizes, and seemed to promote interfacial adhesion. The morphologies of the compatibilized blends also had a higher degree of anisotropy, as compared with the uncompatibilized blend.

• Author: Patric Jannasch; Bengt Wesslén
• Department/s: Centre for Analysis and Synthesis
• Publishing year: 1998
• Language: English
• Pages: 1887-1891
• Publication/Series: Journal of Applied Polymer Science
• Volume: 70
• Issue: 10
• Links: http://dx.doi.org/10.1002/(SICI)1097-4628(19981205)70:10<1887::AID-APP3>3.0.CO;2-Z
• Document type: Journal article
• Publisher: John Wiley & Sons Inc.
• Topic: Chemical Sciences
• Status: Published
• ISBN/ISSN/Other: ISSN: 1097-4628