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Fabrication of Superhydrophobic and Heat-insulating Antimony Doped Tin Oxide/polyurethane Films by Cast Replica Micromolding by Jie Feng; Baoyuan Huang; Mingqiang Zhong is a scholarly article available to read on EtoBox.

What is Fabrication of Superhydrophobic and Heat-insulating Antimony Doped Tin Oxide/polyurethane Films by Cast Replica Micromolding about?

A novel process for fabricating superhydrophobic and heat-insulating polymeric nanocomposite films was developed. Briefly, antimony doped tin oxide (ATO) nanoparticles that commonly endow coats heat-insulating and transparent functions were mixed into commercial waterborne polyurethane (WPU) suspensions to obtain ATO/WPU suspensions, which were then cast onto poly(dimethylsiloxane) (PDMS) stamps replicated from fresh lotus leaves. After being dried and peeled off from stamps, ATO/PU films with superhydrophobic surface and heat-insulating property were created, while PU films without ATO only showed high hydrophobicity. Scanning electron microscopy (SEM) imaging showed the surface of ATO/PU superhydrophobic films had unique micro- and nano-structures similar with those on the lotus leaf. On the contrary, no obvious nano-structures were found on the surface of pure PU films, demonstrating mixing functional nanoparticles into polymers is a necessary and feasible step in creating superhydrophobic and functional films by replica molding method.

Author

Jie Feng; Baoyuan Huang; Mingqiang Zhong

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0021-9797)

Published

2009

Language

EN