Yang Haiyang^1,2, Yan Yuliang¹, Zhu Pingping¹, Zhu Qingren², He Pingsheng¹
(¹Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026)
(²Center of Structural of Research, USTC, Hefei 230026)

Abstract If the flow time of the pure solvent t₀^*, obtained practically by extrapolating the flow time of polymer solution to zero concentration, was employed to determine the viscosity of polymer solution, the relative viscosity of polymer solution could be obtained by comparatively a much simpler experimental procedure. As a result, data sampling and data analyzing carried out by Single chip processor or computer became practical. In the present study, a new set of apparatus was designed so that data sampling and analyzing could be performed automatically. With the help of the designed apparatus, the relative viscosity of polymer solution was easier to be obtained. At the same time, the precision of the viscosity measurement was improved. All the data can be input into the computer automatically to complete the tasks such as plotting and printing.
Key words Viscosity measurement, Data sampling, Data processing, Single chip processor