NDLI: Squeezing of resin droplet with various viscosities between two parallel glasses with very narrow gap

Content Provider	Springer Nature Link
Author	Ha, Kuendong Han, Kwan Young
Copyright Year	2015
Abstract	In this study, the mechanical behavior of radial spreading in resin with various viscosities and squeezed between two parallel glass slides was studied. Radial spreading rate was derived in the conventional way by using lubrication analysis of the Newtonian fluid with negligible capillary and Reynolds number. Simplified momentum and continuity equations were solved using the boundary conditions of a force balance in the vertical direction and an interfacial stress balance at the resin edge between the fluid and air interface. Then, the final equations for spreading radius and speed were derived by modifying the results for the vertical movement and vertical speed of the upper moving plane. The proposed theoretical work is advantageous for improved comparison with experiments. The work was verified through droplet spreading tests utilizing a wide range of resin samples of different viscosities and surface tension, droplet volumes of the sample and different external loadings. Experimental results were consistent with the theoretical predictions for spreading radius and spreading radial speed. Then, the surface tension was measured and compared based on a theoretical model to test the data by modifying the estimated value.
Starting Page	3257
Ending Page	3265
Page Count	9
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	29
Issue Number	8
e-ISSN	19763824
Language	English
Publisher	Korean Society of Mechanical Engineers
Publisher Date	2015-08-09
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Capillary pressure Radial spreading Resin drop Thin film Viscous Newtonian flow Mechanical Engineering Vibration, Dynamical Systems, Control Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering

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