RS高级流变仪标准.pdf

LABnotes Instrument shown: R/S-CPS BrookfieldR/S R/SRheo2000 R/S Fig.1 The generation of a shear field Fig.2 Viscosity profile of a pseudoplastic Fig.3 The yield phenomenon: flow will not commence until a characteristic stress is applied R/SR/S-CPS Fig.4 Thixotropy: non-instantaneous changes in visccosity after step shear-rate change Fig.5 A large loop area signifies slow thixotropic recovery and so good levelling properties Fig.6 Quality-control tolerance bands permit fast pass/fail determinations Fig.7 Controlled-