TY  - JOUR
ID  - scholars9563
KW  - Coatings; Contact angle; Drops; Metabolism; Urea; Urea fertilizers
KW  -  Coating uniformity; Impact velocities; Industrial operations; Interactive effect; Normalized residuals; Process parameters; Response surface methodology; Spreading factor
KW  -  Wetting
N2  - Dissolutive spreading over a porous surface is a phenomenon involving spreading, penetration, as well as dissolution. Droplet spreading forms the basis of numerous industrial operations including the spray coating of urea fertilizer to produce slow release urea. The slow release characteristics of urea highly depend on the coating uniformity that can be achieved by sound knowledge of droplet spreading behaviour over the urea surface. Since numerous waterborne coating materials are being studied presently, dissolutive wetting of the urea surface has been investigated in the current work. Response surface methodology has been utilized to study the interactive effects of process parameters on the dissolutive wetting of an aqueous glycerin solution on a porous urea surface. The effect of impact velocity, surface porosity, and urea solubility has been investigated on three response objectives namely contact angle, spreading factor, and normalized residual drop volume. The results have been compared with an earlier work performed under similar conditions for non-dissolutive wetting. The comparison reveals that dissolutive wetting shows lesser optimum contact angle (81 ) and greater optimum spreading factor (21 ) as compared to non-dissolutive wetting. © 2018 Canadian Society for Chemical Engineering
IS  - 12
Y1  - 2018///
VL  - 96
A1  - Basit, A.
A1  - Siwayanan, P.
A1  - KuShaari, K.
A1  - Keong, L.K.
A1  - Azeem, B.
JF  - Canadian Journal of Chemical Engineering
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85046007229&doi=10.1002%2fcjce.23211&partnerID=40&md5=5bdc1354161f65bbef5a6d565c404f77
AV  - none
TI  - An investigation on dissolutive wetting of porous urea surface
SP  - 2690
N1  - cited By 4
PB  - Wiley-Liss Inc.
SN  - 00084034
EP  - 2699
ER  -