Improvement of the mechanical property and thermal stability of polypropylene/recycled rubber composite by chemical modification and physical blending

The binary blend materials containing the modified recycled rubber powder with maleic a hydride modified polypropylene thermoplastic elastomer were prepared by dynamic vulcanization and blended with a variety of additives such as activated agent, accelerator, solubilizer, and the crosslinking agent....

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Bibliographic Details
Published in:Scientific reports 2020-02, Vol.10 (1), p.2432-2432, Article 2432
Main Authors: Chiang, Tai-Chin, Liu, Huan-Li, Tsai, Lung-Chang, Jiang, Tao, Ma, Ning, Tsai, Fang-Chang
Format: Article
Language:English
Subjects:
639/301/1023
704/172/4081
Chemical modification
Humanities and Social Sciences
Mechanical properties
multidisciplinary
Polypropylene
Powder
Rubber
Scanning electron microscopy
Science
Science (multidisciplinary)
Thermal stability
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Summary:The binary blend materials containing the modified recycled rubber powder with maleic a hydride modified polypropylene thermoplastic elastomer were prepared by dynamic vulcanization and blended with a variety of additives such as activated agent, accelerator, solubilizer, and the crosslinking agent. The thermal properties and mechanical properties including tensile strengths and impact strengths of pristine rubber, polypropylene and their corresponding binary blends were investigated. Besides, the effects of the amount of rubber powder, polypropylene, crosslinking agent, accelerator, activator, and solvent were studied and the microstructures of the pristine rubber, pristine polypropylene, and their corresponding binary blends were observed by scanning electron microscopy. It was found that the compatibilizer could effectively disperse the size of 120 mesh of recycled rubber powder into the polypropylene in the same manner and the homogeneous tear section of the rubber/polypropylene thermoplastic elastomer was obtained. The results on the effects of additives on mechanical and morphological properties of recycled rubber/polypropylene binary blends guide the rational design of novel polymeric composites from recycled polymeric materials.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-59191-0