Study On Test Conditions for Viscosity of Sodium Carboxymethyl Cellulose
Objective To explore the optimum test conditions for the viscosity of sodium carboxymethyl cellulose in different viscosity ranges.Methods The test conditions were studied by Brookfield DV-Ⅱ or NDJ-1 type rotation viscometer.Results In the viscosity range of 1000-2500 mPa·s,the optimum test condition was rotor No.62(No.2),rotation speed 12 r/min or rotor No.63(No.3),rotation speed 30 r/min; in the viscosity range of 2500-8000 mPa·s,the optimum test condition was rotor No.63(No.3),rotation speed 12 r/min or rotor No.64(No.4),rotation speed 60 r/min; in the viscosity range of 8000-12000 mPa·s,the optimum condition was rotor No.64(No.4),rotation speed 30 or 60 r/min.Conclusion Under the screened test condition,the results are accurate and repeatable,and can overcome the deviation of results caused by using different instruments and test conditions.
NETL
NSTL
万方数据
维普
