X-ray Computerized Tomography Observation of the Interfacial Structure of Liquid Marbles

被引:13
作者
Matsukuma, Daisuke [1 ,2 ]
Watanabe, Hirohmi [1 ,2 ]
Fujimoto, Aya [1 ]
Uesugi, Kentaro [3 ]
Takeuchi, Akihisa [3 ]
Suzuki, Yoshio [3 ]
Jinnai, Hiroshi [1 ,2 ]
Takahara, Atsushi [1 ,2 ]
机构
[1] Japan Sci & Technol Agcy JST, Exploratory Res Adv Technol ERATO, Takahara Soft Interfaces Project, Nishi Ku, Fukuoka 8190395, Japan
[2] Kyushu Univ, Inst Mat Chem & Engn, Nishi Ku, Fukuoka 8190395, Japan
[3] Japan Synchrotron Res Inst, Sayo, Hyogo 6715198, Japan
关键词
WATER; PARTICLES; FOAMS; STABILITY; DYNAMICS; SURFACE;
D O I
10.1246/bcsj.20140260
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We have demonstrated that the liquid/solid interfacial structure of liquid marbles is determined by the surface interface interaction between the encapsulating particles and liquid droplet. X-ray computerized tomography (X-ray CT) confirmed that the decrease of the solid-over-liquid spreading coefficient (S-S/L) allowed the particles to be submerged in the liquid. Moreover, the difference in interfacial structure had a strong effect on the dynamic mechanical stability of liquid marbles. Two liquid marbles only merged upon contact when at least one liquid marble had a small S-S/L, value. X-ray CT observations also revealed that the liquid at the solid/liquid interface did not interdiffuse easily.
引用
收藏
页码:84 / 88
页数:5
相关论文
共 28 条
[1]   Liquid marbles [J].
Aussillous, P ;
Quéré, D .
NATURE, 2001, 411 (6840) :924-927
[2]   Phase inversion of particle-stabilized materials from foams to dry water [J].
Binks, Bernard P. ;
Murakami, Ryo .
NATURE MATERIALS, 2006, 5 (11) :865-869
[3]   Influence of particle wettability on the type and stability of surfactant-free emulsions [J].
Binks, BP ;
Lumsdon, SO .
LANGMUIR, 2000, 16 (23) :8622-8631
[4]   Particles as surfactants - similarities and differences [J].
Binks, BP .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2002, 7 (1-2) :21-41
[5]   Non-Stick Droplet Surgery with a Superhydrophobic Scalpel [J].
Bormashenko, Edward ;
Bormashenko, Yelena .
LANGMUIR, 2011, 27 (07) :3266-3270
[6]   Liquid marbles: Properties and applications [J].
Bormashenko, Edward .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2011, 16 (04) :266-271
[7]   WETTING - STATICS AND DYNAMICS [J].
DEGENNES, PG .
REVIEWS OF MODERN PHYSICS, 1985, 57 (03) :827-863
[8]  
Dupin D, 2009, J AM CHEM SOC, V131, P5386, DOI 10.1021/ja901641v
[9]   Controlled Silanization of Silica Nanoparticles to Stabilize Foams, Climbing Films, and Liquid Marbles [J].
Fletcher, Paul D. I. ;
Holt, Ben L. .
LANGMUIR, 2011, 27 (21) :12869-12876
[10]   Ionic liquid marbles [J].
Gao, Lichao ;
McCarthy, Thomas J. .
LANGMUIR, 2007, 23 (21) :10445-10447