Polypropylene + Polystyrene Blends with a Compatibilizer. Part 1. Morphology and Thermophysical Properties (CROSBI ID 137591)
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Podaci o odgovornosti
Brostow, Witold ; Holjevac Grgurić, Tamara ; Olea- Mejia, Oscar ; Rek, Vesna ; Unni, Jaykumar
engleski
Polypropylene + Polystyrene Blends with a Compatibilizer. Part 1. Morphology and Thermophysical Properties
Various concentrations of polypropylene (PP) and polystyrene (PS) blends were prepared with styrene-ethylene/butylene-styrene block copolymer (SEBS) added as a compatibilizer between the two main polymers. We have investigated the effect of SEBS on processing, morphology and thermophysical properties of the blends. The compatibilizing agent improves the blend morphology since smaller particles of the dispersed PS phase in the PP matrix blends are obtained ; adding more than 5 % SEBS has no further effect on the blends. The presence of SEBS lowers the crystallinity of the PP-rich phase - as reflected in the enthalpy of fusion and also in the enthalpy of crystallization.
polymer blends ; compatibilization ; polypropylene ; polystyrene ; polymer crystallization
Glavni autori: Tamara Holjevac Grgurić, Witold Brostow
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