The Effect of Additives on Fluid Friction 



2 lO" 



/» 



/* 



100 WPPM 

 10 WPPM- 

 .DISTILLED WATER 



TEMP^ZS.OiO.rc 



10 10-^ 



WALL SHEAR RATE, SEC"' 



Fig. 11 - Rheogram of poly(ethylene oxide) of 4 million 

 molecular weight in water 



967 



