PMID- 22056263
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20120413
LR  - 20180515
IS  - 1095-7103 (Electronic)
IS  - 0021-9797 (Linking)
VI  - 367
IP  - 1
DP  - 2012 Feb 1
TI  - Percolation-dominated superhydrophobicity and conductivity for nanocomposite 
      coatings from the mixtures of a commercial aqueous silica sol and functionalized 
      carbon nanotubes.
PG  - 225-33
LID - 10.1016/j.jcis.2011.10.029 [doi]
AB  - Superhydrophobic conductive nanocomposite coatings are prepared for the first 
      time from the simple mixture of a commercial aqueous silica sol and 
      functionalized multiwalled carbon nanotubes (MWNTs) by air-spraying at ambient 
      conditions followed by fluorosilane treatment. The relationship between MWNT 
      content and the structure and properties of the nanocomposite coatings is 
      investigated systematically. An ultra-low threshold (<5 vol.%) for 
      superhydrophobicity is observed, which suggests that MWNTs are superior to any 
      other spherical fillers for the construction of superhydrophobic nanocomposite 
      coatings. When the content of nanotubes is below the threshold, the surface 
      roughness mainly caused by the silica nanoparticles is not enough for creating 
      superhydrophobic surfaces. Only above the threshold, the multiscale hierarchical 
      structure is enough for both high water contact angles (>165 degrees ) and extremely low 
      sliding angles (<2 degrees ). The conductivity is also percolation dominated, while the 
      threshold for conductivity is much higher than that for superhydrophobicity, 
      which can be ascribed to the encapsulated structure and the agglomeration of 
      nanotubes in the composite coatings during air-spraying. Moreover, the aqueous 
      silica sols hold merits of great film-forming capability at relatively low 
      calcination temperatures, and being free of organic solvents.
CI  - Copyright (c) 2011 Elsevier Inc. All rights reserved.
FAU - Peng, Mao
AU  - Peng M
AD  - MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department 
      of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, PR 
      China. pengmao@zju.edu.cn
FAU - Guo, Honglei
AU  - Guo H
FAU - Liao, Zhangjie
AU  - Liao Z
FAU - Qi, Ji
AU  - Qi J
FAU - Zhou, Zhi
AU  - Zhou Z
FAU - Fang, Zhengping
AU  - Fang Z
FAU - Shen, Lie
AU  - Shen L
LA  - eng
PT  - Journal Article
DEP - 20111020
PL  - United States
TA  - J Colloid Interface Sci
JT  - Journal of colloid and interface science
JID - 0043125
EDAT- 2011/11/08 06:00
MHDA- 2011/11/08 06:01
CRDT- 2011/11/08 06:00
PHST- 2011/07/26 00:00 [received]
PHST- 2011/09/25 00:00 [revised]
PHST- 2011/10/12 00:00 [accepted]
PHST- 2011/11/08 06:00 [entrez]
PHST- 2011/11/08 06:00 [pubmed]
PHST- 2011/11/08 06:01 [medline]
AID - S0021-9797(11)01302-6 [pii]
AID - 10.1016/j.jcis.2011.10.029 [doi]
PST - ppublish
SO  - J Colloid Interface Sci. 2012 Feb 1;367(1):225-33. doi: 
      10.1016/j.jcis.2011.10.029. Epub 2011 Oct 20.