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Please briefly describe the purpose of your research presentation, principal results,
and major conclusions here. Maximum length of this abstract is 200 words.
Please briefly describe the purpose of your research presentation, principal results,
and major conclusions here. Maximum length of this abstract is 200 words.
Please briefly describe the purpose of your research presentation, principal results,
and major conclusions here. Maximum length of this abstract is 200 words.
Please briefly describe the purpose of your research presentation, principal results,
and major conclusions here. Maximum length of this abstract is 200 words.
Please briefly describe the purpose of your research presentation, principal results,
and major conclusions here. Maximum length of this abstract is 200 words.
Please briefly describe the purpose of your research presentation, principal results,
and major conclusions here. Maximum length of this abstract is 200 words.
Please briefly describe the purpose of your research presentation, principal results,
and major conclusions here. Maximum length of this abstract is 200 words.
Please briefly describe the purpose of your research presentation, principal results,
and major conclusions here.
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Keynote / Invited / Oral / Poster – Session # – Abstract #
(ISNIT organization committee only)
Tribological properties of various biomimetic shaped polymer patterns
Shuxue Piao1,2, Duc-Cuong Pham1, Kyung-Young Jhang2, Eui-Sung Yoon1,*
1Center
for BioMicrosystems, Brain Science Institute, Korea Institute of Science and Technology
(KIST), Seoul, Korea
2ISNDE Laboratory, Department of Automotive Engineering, Hanyang University, Seoul, Korea
*esyoon@kist.re.kr
This paper presents a simple investigation on surface properties of nano scale
polystyrene (PS) mushroom-shaped patterns and multi-scaled hierarchical (methyl
methacrylic) (PMMA) patterns which were fabricated using capillary force lithography
technique. PTFE coating was applied for the specimens. Static water contact angle
(WCA), adhesion and friction forces of these patterns were examined. All the
patterned surfaces exhibited excellent surface properties. For the mushroom
patterns, PTFE coated mushroom pattern showed super-hydrophobic property and
decreased the adhesion and friction forces. The adhesion and friction decreased
with the pitch due to the contact area. The round-top shaped mushroom pattern
showed lower adhesion and friction than those of the flat-top shaped. For the
hierarchical patterns, hierarchical patterns showed largest WCA and smallest
adhesion and friction forces among micro and nano patterns. Further, it was also
found that the pitch affects the tribological properties of the patterned surfaces due to
the contact area.
Keywords:
hierarchical pattern, mushroom pattern, hydrophobicity, nanotribology,
AFM