Superhydrophobic hierarchical structures produced through novel low-cost stamp fabrication and hot embossing of thermoplastic film

Autor:	Chae-Hee Lim, Wook-Bae Kim, Sol-Yi Han, Kwang Kim, Jae-Dong Eo
Rok vydání:	2015
Předmět:	chemistry.chemical_classification Thermoplastic Fabrication Laser ablation Materials science Anodizing Mechanical Engineering Cyclic olefin copolymer Contact angle chemistry.chemical_compound chemistry Mechanics of Materials Nano Lotus effect Composite material
Zdroj:	Journal of Mechanical Science and Technology. 29:5107-5111
ISSN:	1976-3824 1738-494X
DOI:	10.1007/s12206-015-1108-8
Popis:	We present a simple and cost-effective method to produce superhydrophobic surfaces in thermoplastic polymer substrates, which contain hierarchical micro/nano structures that resemble lotus leaves. The method involved the fabrication of an Al stamp through the sequential application of laser ablation and anodization to create micro- and nano-structures, respectively. The fabricated patterns on the Al stamp were replicated on the thermoplastic Cyclic olefin copolymer (COC) film surfaces through a hot embossing technique. Static water contact angles were measured to evaluate the hydrophobicity of the patterned COC surfaces. The static water contact angle on the micro/ nano hierarchical structured COC surface was measured to be 162.3° on average. The hot embossing process was repeated 31 times with a nano-structured Al stamp, and the replicated COC surfaces showed consistent water contact angles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ea8a64a83fd517f1c13c631efe370382 https://doi.org/10.1007/s12206-015-1108-8 Zobrazit plný text záznamu Full text from SpringerLink