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Compositional Quenching 으로 제조한 PP / PU 블렌드의 모플로지 및 물성
임경택(Gyeong Taek Lim),주민혁(Min Hyuk Ju),김도형(Do Heyoung Kim),송기찬(Ki Chan Song),김수경(Su Kyung Kim) 한국고무학회 2001 엘라스토머 및 콤포지트 Vol.36 No.3
N/A Polypropylene(PP)/Polyurethane(PU) blends with reactive compatibilizers were prepared by the compositional quenching process. Malefic anhydride grafted PP(MPP) and hydroxyethyl maleimide grafted PP(HPP) were introduced as reactive compatibilizers. The formation of HPP and the reactions of compatibilizers with the PU components were confirmed by FT-IR spectroscopy. The morphology, tensile properties, thermal stability, and surface property were studied. The blends prepared by the compositional quenching showed better dispersed domain morphology than the melt blends. The PU domain size became more uniform and reduced in size with increasing the amount of compatibilizers. The blends with HPP showed slightly smaller domain size than the blends with MPP. The blends with compatibilizers all showed improved tensile properties, surface property, and thermal stability due to the interfacial adhesion effect. The blends with MPP showed higher surface energy than the blends with HPP, but the latter showed better thermal stability compared to the former.