【摘要】 为进一步改善煤粉的表面活性,利用γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)对煤粉进行表面修饰;对改性前后煤粉,运用红外光谱(FT-IR)、扫描电子显微分析(SEM)、接触角测定仪和沉降实验等方法进行了表征。研究结果表明:KH-570与煤粉能够形成化学结合,表面修饰后的煤粉颗粒能有效阻止了颗粒的团聚,并能够均匀分散在橡胶胶体中,与胶体形成物理和化学交联结构。更多还原

【Abstract】 In order to increase the superficial capacity of coal powder,γ-methacryloxypropyltrimethoxysilane coupling agent(KH-570) was used as modifier for surface modification of coal powder.The modified and unmodified coal powder were characterized by Fourier Transform Infrared Spectroscopy(FTIR),scanning electron microscopy(SEM),contact angle measuring instrument and sedimentation test etc..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.更多还原