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Mechanical properties of HDPE–PS–SEBS blends

✍ Scribed by C. R. Lindsey; D. R. Paul; J. W. Barlow

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
385 KB
Volume
26
Category
Article
ISSN
0021-8995

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✦ Synopsis

Blends of high-density polyethylene (HDPE), polystyrene (PS), and an SEBS triblock copolymer were extruded, pelletized, and injection molded. The binary HDPE-PS blends exhibit very poor ductibility; however, addition of the SEBS block copolymer greatly improves this characteristic but with an accompanying loss in strength and modulus. The modified blends are very tough and have mechanical properties suitable for many end use applications. However, weld lines pose a problem and should be avoided with these blends.

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