Drop impingement of water and aqueous SDS solution on polycarbonates

Chia-Ying Chiang; Alvin Casandra; Wijaya Suryaputra; Shi-Yow Lin

Journal of Industrial and Engineering Chemistry, Vol.49, 189-197, May, 2017

DOI10.1016/j.jiec.2017.01.027 Export Citation

Drop impingement of water and aqueous SDS solution on polycarbonates

Chia-Ying Chiang, Alvin Casandra, Wijaya Suryaputra, and Shi-Yow Lin^†

Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Keelung Road, Sec. 4, Taipei 106, Taiwan

E-mail:

The impact dynamics of pure water and an SDS solution at a concentration of 2.5 x cmc (Υ = 38.9 mN/m) impinging on polycarbonate surfaces were studied. The relaxations of wetting diameter, drop height and contact angle were examined under four impact velocities (0.45 -1.1 m/s) with three different roughness (15 -114 nm). The effects of surface tension, impact velocity and surface roughness were investigated. Two new phenomena have been observed: all water drops, independent of their impact velocity, receded back to the same wetting diameter on smooth surfaces, and water drops at a low impact velocity showed nearly the same wetting behavior on polycarbonates with different roughness.

Keywords:Drop impact;Surfactant solution;Surface tension;Impact velocity;Surface roughness

[References]

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Pittoni PG, Lin CH, Yu TS, Lin SY, Langmuir, 30(31), 9346 (2014)
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Lin SY, Chang HC, Lin LW, Huang PY, Rev. Sci. Instrum., 67, 2852 (1996)
Pittoni PG, Tsao HK, Hung YL, Huang JW, Lin SY, J. Colloid Interface Sci., 417, 256 (2014)

[1] Rein M, Fluid Dyn. Res., 12, 61 (1993)

[2] Yarin AL, Annu. Rev. Fluid Mech., 38, 159 (2006)

[3] Liang Gangtao, Mudawar Issam, Int. J. Heat Mass Transf., 101, 577 (2016)

[4] Liang GT, Mudawar I, Int. J. Heat Mass Transf., 106, 103 (2017)

[5] Liang G, Mu X, Guo Y, Shen S, Quan S, Zhang J, Exp. Therm. Fluid Sci., 74, 73 (2016)

[6] Mourougoucandoni N, Prunetfoch B, Legay F, Vignesadler M, Wong K, J. Colloid Interface Sci., 192(1), 129 (1997)

[7] Mourougou-Candoni N, Prunet-Foch B, Legay F, Vignes-Adler M, Wong K, Langmuir, 15(19), 6563 (1999)

[8] Aytouna M, Bartolo D, Wegdam G, Bonn D, Rafai S, Exp. Fluids, 48, 49 (2010)

[9] Gatne KP, Jog MA, Manglik RM, Langmuir, 25(14), 8122 (2009)

[10] Zhang XG, Basaran OA, J. Colloid Interface Sci., 187(1), 166 (1997)

[11] Cooper-White JJ, Crooks RC, Boger DV, Colloids Surf. A: Physicochem. Eng. Asp., 210, 105 (2002)

[12] Crooks R, Cooper-Whitez J, Boger DV, Chem. Eng. Sci., 56(19), 5575 (2001)

[13] Song EM, Kim DW, Lim JC, J. Ind. Eng. Chem., 28, 351 (2015)

[14] Hua XY, Rosen MJ, J. Colloid Interface Sci., 124, 652 (1988)

[15] Fainerman VB, Colloids Surf. A: Physicochem. Eng. Asp., 62, 333 (1992)

[16] Wang MJ, Hung YL, Lin SY, J. Taiwan Inst. Chem. Eng., 43, 517 (2012)

[17] Pittoni PG, Lin CH, Yu TS, Lin SY, Langmuir, 30(31), 9346 (2014)

[18] Wang MJ, Hung YL, Lin FH, Lin SY, Exp. Therm. Fluid Sci., 23, 1112 (2009)

[19] Wang MJ, Lin FH, Ong JY, Lin SY, Colloids Surf. A: Physicochem. Eng. Asp., 339, 224 (2009)

[20] Lin SY, Chang HC, Lin LW, Huang PY, Rev. Sci. Instrum., 67, 2852 (1996)

[21] Pittoni PG, Tsao HK, Hung YL, Huang JW, Lin SY, J. Colloid Interface Sci., 417, 256 (2014)