摘要
对金溪膨润土的流变性进行了系统研究。结果表明:质量分数、剪切力、溶解温度、加热时间、pH值、冻融条件与时间等变化对金溪膨润土的粘度有较大影响。金溪膨润土溶液具有较高的粘度,当矿浆质量分数达到60%时,其粘度为542.8mPa·s,金溪膨润土溶液为"非牛顿流体",加热时间与温度对金溪膨润土粘度影响较大,金溪膨润土溶液在酸性和碱性条件下都较为稳定,冻融处理后金溪膨润土粘度大幅度下降。
In this paper, the rheological properties of bentonite was studied. The results showed that the viscosity of bentonite suspension was affected by concentration, shearing stress, dissolution temperature, heated time, pH, freezing-thawing conditions etc. Bentonite suspension had high viscosity, when its concentration reached 60%, the viscosity was 542.8mPa·s,and it is non-Newton fluid. Temperature and time in hot water had big effect on it. The stability of bentonite in acidic solution and alkalinous solution was better, its viscosity was declined after the treatment of freezing-thawing.
出处
《化工矿物与加工》
CAS
北大核心
2005年第6期28-30,共3页
Industrial Minerals & Processing
关键词
膨润土
粘度
流变性
bentonite
viscosity
rheology
