Mechanical and interfacial properties of compatibilized polyurethane blends (CROSBI ID 242121)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
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