Toughening of Polystyrene with Ethylene‐Propylene‐Diene Terpolymer (EPDM) Compatibilized by Styrene‐Butadiene‐Styrene Block Copolymer (SBS) | Zendy

Fang Zhengping | Zendy; Guo Zhenghong | Zendy; Zha Linlin | Zendy

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Toughening of Polystyrene with Ethylene‐Propylene‐Diene Terpolymer (EPDM) Compatibilized by Styrene‐Butadiene‐Styrene Block Copolymer (SBS)

Author(s) -

Fang Zhengping,

Guo Zhenghong,

Zha Linlin

Publication year - 2004

Publication title -

macromolecular materials and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.913

H-Index - 96

eISSN - 1439-2054

pISSN - 1438-7492

DOI - 10.1002/mame.200300356

Subject(s) - materials science , copolymer , polystyrene , composite material , compatibilization , styrene , styrene butadiene , natural rubber , rheometer , scanning electron microscope , polymer blend , polymer chemistry , polymer , rheology

Summary: Polystyrene (PS) was toughened with ethylene‐propylene‐diene terpolymer (EPDM) in the presence of styrene‐butadiene‐styrene block copolymer (SBS). Incorporation of SBS into the PS/EPDM blends clearly improved the impact properties. For PS/EPDM/SBS (mass ratio: 69/21/10) blends, the notched Charpy impact strength reached a maximum value of 26.3 kJ/m 2 . Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that SBS was distributed on the interface between PS and EPDM. Butanone extraction and FTIR analysis found that there was a grafting reaction between PS and EPDM phase during melt compounding. Shearing and processing rheological behaviors of blends were evaluated with a Haake capillary rheometer and a torque rheometer, respectively.

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