the properties of the viscosity of polyacrylamide (pam) solution were investigated by mean of ubbelohde viscometer and rotation viscometer.
利用乌氏粘度计和旋转粘度计研究了聚丙烯酰胺(pam)溶液的粘度。
objective:intrinsic viscosity of sodium hyaluronate was measured by ubbelohde viscometer and calculated using jp, chp and ep methods for intrinsic viscosity.