system

viscosity before shearing/mPa∙s

viscosity after shearing/mPa∙s

viscosity retention rate/%

HPAM

10 - 201

4.8 - 134.2

45 - 66

structural polymer A

143 - 1528

27 - 1062

19 - 70

structural polymer B

60 - 144

7 - 64

12 - 44

gel

135 - 13,924

97 - 13,145

72 - 99