期刊
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
卷 55, 期 5, 页码 486-497出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/03602559.2015.1070865
关键词
Coupling agents; mechanical properties; natural zeolite; polymer blends; recycling
资金
- Bulgarian Ministry of Education and Science [DTK 2010-02/7]
- MINECO (Spain) [MAT2013-47972-C2-1-P]
- Dr. Heinrich-Jorg-Stiftung of the University of Graz
The purpose of this study is to investigate the effect of treated natural zeolite on the flow behavior, morphology, thermal, and mechanical properties in recycled polyolefin blends. A model polymer blend consisting of 95wt% polyolefines and 5wt% polystyrene was studied. Compositions from this recycled blend and dehydrated zeolite in a narrow concentration range (0-5wt%) were treated with maleic anhydride-grafted polypropylene and initiator dicumyl peroxide. The compositions were characterized by capillary rheometry, wide-angle X-ray scattering, differential scanning calorimetry, scanning electron microscopy, and mechanical tests. The results show a compatibilizing effect of treated zeolite expressed by increase of shear viscosity and improvement of interfacial interactions and impact strength. The results can open wide possibilities for utilization of treated zeolite in recycling of unsorted polymer wastes.
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