Abstract
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.
Highlights
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 modified waste rubber powders blends with Maleic anhydride (MAH)-polypropylene and the control samples were investigated by using thermal analysis, Fourier-transform infrared spectroscopy (FT-IR) analysis, mechanical and Scanning Electron Microscope (SEM) to explore a better combination of the recycled rubber powder/polypropylene binary blend systems
No obvious shift was observed at 2900 cm−1 and 2800 cm−1, which correspond to saturated stretch asymmetric vibration νas(-CH3) and symmetric vibration νs(>CH2) of the backbone, indicating that the majority of C-H moieties remain during processing
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 tensile properties of the waste rubber powder/polypropylene were significantly improved Li Yan et al have reported that the mechanical properties of PVC (Polyvinyl Chloride)/rubber powder can be improved by using oxygen plasma to modify the surface of the waste materials[7].
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