Abstract
Coupling agent γ-methacryloxypropyltrimethoxysilane（KH-570） was used as modifier to improve the superficial capacity of coal powder. Modified coal powder/thermoplastic butadiene-styrene rubber (SBS) composites were prepared by mixing procedure. The modified and unmodified coal powder and mechanical properties of composites were characterized and analyzed by Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetric analysis (TGA), contact angle measuring instrument(CAMI), sedimentation test, rubber process analyzer (RPA) and scanning electron microscopy (SEM). Results showed that KH-570 can form chemical union with coal powder. The agglomeration of coal powder particles was effectively restricted after surface modification. The modified coal powder particles can be dispersed equally in rubber and form physical and chemical crosslinking structure with rubber.
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