Rapid carbon nanotubes suspension in organic solvents using organosilicon polymers

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:470

Article

Dalcanale, Federico^1,2  Grossenbacher, Jonas³  Blugan, Gurdial¹  Gullo, Maurizio R.³  Brugger, Juergen³  Tevaearai, Hendrik^4,5  Graule, Thomas¹  Kuebler, Jakob¹ 

[1] Empa, Lab High Performance Ceram, Swiss Fed Labs Mat Sci & Technol, Ueberlandstr 129, Dubendorf, Switzerland

[2] ETH, Dept Mat, Lab Multifunct Mat, Vladimir Prelog Weg 5, CH-8093 Zurich, Switzerland

[3] Ecole Polytech Fed Lausanne, Microsyst Lab, Stn 17, CH-1015 Lausanne, Switzerland

[4] Univ Hosp Bern, Inselspital, Cardiovasc Surg Clin, CH-3010 Bern, Switzerland

[5] Univ Bern, Bern, Switzerland

关键词: MWCNT suspension;    Hydrosilylation;    Polycarbosilane;    Polysilazane;    Aerogel;   

DOI  :  10.1016/j.jcis.2016.02.050

来源: Elsevier

【 摘 要 】

A strategy for a simple dispersion of commercial multi-walled carbon nanotubes (MWCNTs) using two organosilicones, polycarbosilane SMP10 and polysilazane Ceraset PSZ20, in organic solvents such as cyclohexane, tetrahydrofuran (THF), m-xylene and chloroform is presented. In just a few minutes the combined action of sonication and the presence of Pt(0) catalyst is sufficient to obtain a homogeneous suspension, thanks to the rapid hydrosilylation reaction between Si-H groups of the polymer and the CNT sidewall. The as-produced suspensions have a particle size distribution <1 mu m and remain unchanged after several months. A maximum of 0.47 and 0.50 mg/ml was achieved, respectively, for Ceraset in THF and SMP10 in chloroform. Possible applications as polymeric and ceramic thin films or aerogels are presented. (C) 2016 Elsevier Inc. All rights reserved.

【 授权许可】

Free