Influence of a Contact Angle on the Thinning Rate of a Liquid Film on a Rotating Substrate

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Shigenori Togashi¹  Takashi Ohta²  Hitoshi Azuma² 

[1] Hitachi, Ltd., Mechanical Engineering Research Laboratory;Hitachi, Ltd., Displays

关键词: Newtonian Fluids;    Liquid Film;    Rotating Substrate;    Film Thickness;    Static Contact Angle;   

DOI  :  10.1252/jcej.35.309

来源: Maruzen Company Ltd

【 摘 要 】

References(6)The thinning rate of the remaining liquid film on rotating substrates with different static contact angles was measured. It was found that the thinning rate of a liquid film increased when the static contact angle between the liquid and the substrate increased. Emslie’s equation was modified to account for the effect of the static contact angle. Then it was shown that the thinning rate of the remaining liquid film predicted by the modified Emslie equation agreed well with the measured thinning rate. It is therefore concluded that we can use the equation to determine the appropriate processing time for blowing away a liquid film at a static contact angle.

【 授权许可】

Unknown