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http://dx.doi.org/10.7317/pk.2013.37.3.405

Compatibilization of Linear PPS/PET Blends with SEBS Copolymers  

Kim, Sungki (SK Chemicals R&D Center)
Hong, In-Kwon (Division of Chemical Engineering, Dankook University)
Lee, Sangmook (Division of Chemical Engineering, Dankook University)
Publication Information
Polymer(Korea) / v.37, no.3, 2013 , pp. 405-410 More about this Journal
Abstract
The effect of styrene-ethylene/butylene-styrene (SEBS) on the blend of polyphenylene sulfide (PPS) and polyethylene terephthalate (PET) was investigated. The blends were extruded by a single screw extruder equipped with a Maddock mixing screw, and their molded properties were examined. After the binary blends were prepared on the whole compositions of PPS/PET (80/20, 60/40, 40/60, 20/80), the thermal, rheological, mechanical properties and morphology of the blends were analyzed. The results showed the significant decline in the properties of the blends owing to the incompatibility between PPS and PET phases. As a basic blend composition, the PPS/PET (40/60) blend was selected by considering cost efficiency. To this basic blend, SEBS was added as a compatibilizer. With increasing SEBS addition, the mechanical properties were improved. From the domain size reduction observed in morphology, it might be due to the enhancement of compatibility between linear PPS and PET phases by addition of SEBS.
Keywords
polyphenylene sulfide; polyethylene terephthalate; SEBS; compatibilization; blends;
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