摘要
目的研究聚甲丙烯酸铵酯Ⅱ的流体特性并建立其动力黏度测定方法。方法采用马尔文Kinexus Ultra同轴圆筒式流变仪,温度20℃,剪切速率10 s-1条件下测定动力黏度。结果 6%聚甲丙烯酸铵酯Ⅱ的75%乙醇溶液为牛顿流体,动力黏度为5.06 mPa.s,30次测定的RSD为0.25%。结论该方法简便、准确、重复性好,适用于测定聚甲丙烯酸铵酯Ⅱ的动力黏度。
Objective To study the rheology behavior of methacrylic acid copolymer Ⅱ and establish a method to measure its dynamic viscosity. Methods Dynamic viscosity was determined by malvern kinexus ultra concentric cylinder rheometer at a shear rate of 10 s-1 and 20 ℃. Results Methacrylic acid copolymer Ⅱ was newtonian fluid, whose dynamic viscosity was 5.06 mPa ·s （RSD = 0.25%, n = 30）. Conclusion The method is convenient, accurate and of good repeatability to determine dynamic viscosity of methacrylic acid copolymer Ⅱ.
出处
《医药导报》
CAS
北大核心
2012年第6期786-788,共3页
Herald of Medicine
基金
国家药典委员会立项课题(1678)
关键词
聚甲丙烯酸铵酯Ⅱ
动力黏度
同轴圆筒式流变仪
Methacrylic acid copolymer Ⅱ
Dynamic viscosity
Concentric cylinder rheometer
