Effective Parameters on the Phase Morphology and Mechanical Properties of PP/PET/ SEBS Ternary Polymer Blends
محل انتشار: فصلنامه علوم و فناوری ذرات، دوره: 1، شماره: 1
سال انتشار: 1394
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 517
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شناسه ملی سند علمی:
JR_JPST-1-1_005
تاریخ نمایه سازی: 26 فروردین 1397
چکیده مقاله:
In this work, ternary polymer blends based on polypropylene (PP)/ polyethylene terephthalate (PET) /poly(styrene-b (ethylene-co-butylene)-b-styrene) (SEBS) triblock copolymer and a reactive maleic anhydride grafted SEBS (SEBS-g- MAH) at various compositions were prepared by co-rotating twin screw extruder. The effects of PET, SEBS and SEBS-g-MAH compatibilizer on morphology of the blends were examined by scanning electron microscopy (SEM). The blends morphology was also estimated by some predicting methods, however, SEM results revealed some contrasts between results of predicting methods and the real morphology. Population of individual and core-shell particles as well as average diameter of the rubber-based cavities is extremely dependent on SEBS, SEBSg- MA and PET content. Mechanical inspection tests showed that in comparison with the pure PP, addition of SEBS/SEBS-MA causes an increase in the impact strength of the system. Keeping other parameters constant, with increase in SEBS rubbery phase, the core-shell morphology was affected and the impact strength increased consequently. On the other hand, increase in PET content results in modulus increase and the impact strength decrease. Finally, the optimum processing conditions for compounding ternary PP/PET/SEBS blends were achieved.
کلیدواژه ها:
نویسندگان
Mohammad Ali Khoramabadi
Department of Polymer Engineering, College of Polymer Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran.
Omid Moini Jazani
Department of Chemical Engineering, College of Engineering, University of Isfahan, Isfahan, Iran.
Mohammad Mahdi Salehi
Polymer and Science Technology Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran.
Hossein Riazi
Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran.