摘要：采用硬脂酸钠改性剂对盐泥进行湿法改性,研究改性温度、改性时间及改性剂用量对改性效果的影响规律,采用活化指数、接触角及红外光谱分析对改性盐泥进行表征。结果表明:在最佳工艺条件下,活性盐泥的活化指数为97.70%,接触角为126.5°,改性盐泥由亲水性变成疏水性;硬脂酸钠和盐泥以化学键结合。

关键词：盐泥；硬脂酸钠；湿法改性；活化指数；接触角

Abstract： The salt sludge was modified with sodium stearate by wet process. The influence of modification temperature， modification time and surfactant dosage was studied. The modified salt sludge was characterized by active index， contact angle and IR. The results indicate that the active index of modified salt sludge is 97.70%， the contact angle is 126.5°at the optimum condition. The modified slat sludge changes from hydrophilic to hydrophobic completely. The sodium stearate is attached to the salt sludge by chemical bonds. 

Keywords: salt sludge; sodium stearate; modification; active index; contact angle