CTAB与KH550改性凹凸棒石的改性效果对比

摘要

分别利用十六烷基三甲基溴化铵(CTAB)和硅烷550(KH550)对凹凸棒石进行有机化改性.采用界面接触角、红外光谱分析对表面改性前后的凹凸棒石进行分析表征.研究了不同改性条件对凹凸棒石改性效果的影响.结果表明,十六烷基三甲基溴化铵改性凹凸棒石的效果好于硅烷550改性凹凸棒石的改性效果.%Organic surface modifications on attapulgite were carried out with eetyl trimethylammonium bromide(CTAB) and silane coupling agent(KH550), respectively. The modified attapulgite were characterized by wetting contact angle and Fourier transform infrared spectrometer(FTIR). The effects of different modifying conditions on the modification of attapulgite were investigated. The results showed that attapulgite modified by cetyl trimethylammonium bromide was better.