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Mechanical and interfacial properties of compatibilized polyurethane blends (CROSBI ID 242121)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Ocelić Bulatović, Vesna ; Mihaljević, Antonia ; Govorčin Bajsić, Emi Mechanical and interfacial properties of compatibilized polyurethane blends // Polymer engineering and science, 58 (2018), 11; 1911-1922. doi: 10.1002/pen.24800

Podaci o odgovornosti

Ocelić Bulatović, Vesna ; Mihaljević, Antonia ; Govorčin Bajsić, Emi

engleski

Mechanical and interfacial properties of compatibilized polyurethane blends

The effects of two different styrene– ethylene/butylene-styrene (SEBS ; SEBS-g-MA) block copolymers as potential compatibilizers for thermoplastic polyurethane/isotactic polypropylene blends (TPU/iPP), at different composition were investigated. The compatibilizers involved are unfunctionalized SEBS and functionalized grades containing maleic anhydride grafted to the midblock (SEBS- g- MA). Compatibility of each TPU/iPP/SEBS and TPU/iPP/SEBS-g-MA polymer blend was compared investigating mechanical, morphological, thermal and interfacial properties. From the results of the interfacial surface free energy, SEBS-g-MA is optimal compatibilizer which located at the interface of TPU and iPP phase exhibited much better synergy and improved the compatibility between the TPU and iPP phase. Accordingly, TPU/iPP/SEBS-g-MA showed better mechanical properties (higher tensile strength, elongation at break and E modulus) and finer and more stable morphologies that were clearly observed by scanning electron microscopy. The thermogravimetric analysis confirmed these results showing pronounced thermal stability by addition of functionalized compatibilizer.

blends ; compatibilization ; mechanical properties ; morphology ; thermal properties ; interface

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Podaci o izdanju

58 (11)

2018.

1911-1922

objavljeno

0032-3888

1548-2634

10.1002/pen.24800

Povezanost rada

Interdisciplinarne tehničke znanosti, Kemijsko inženjerstvo

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