Abstract
Rose-petal surface consists of a hierarchical structure of microscale papillae and nanofolds. With this micro-nanostructure and surface energy, rose petals exhibit a special property: drops on the petal surface are spherical and do not slide when a petal is held upside down. We replicated the rose-petal surface structure by employing a UV nanomolding process using polyurethane acrylate (PUA) for the first replica and perfluoropolyether (PFPE) for the second replica. PFPE micro-nanostructures, which were identical to the rose-petal hierarchical structure, were formed on a glass substrate. The water contact angle of 144° and contact-angle hysteresis of 83 confirmed that the surface of the glass substrate exhibited a high adhesive force and superhydrophobicity.
| Original language | English |
|---|---|
| Pages (from-to) | 170-173 |
| Number of pages | 4 |
| Journal | Materials Letters |
| Volume | 121 |
| DOIs | |
| Publication status | Published - 2014 Apr 15 |
Fingerprint
Keywords
- Adhesion
- Biomimetic
- Petal effect
- UV-molding
- Wenzel-Cassie state
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering
- Mechanics of Materials
Cite this
Replication of rose-petal surface structure using UV-nanoimprint lithography. / Choo, Soyoung; Choi, Hak Jong; Lee, Heon.
In: Materials Letters, Vol. 121, 15.04.2014, p. 170-173.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Replication of rose-petal surface structure using UV-nanoimprint lithography
AU - Choo, Soyoung
AU - Choi, Hak Jong
AU - Lee, Heon
PY - 2014/4/15
Y1 - 2014/4/15
N2 - Rose-petal surface consists of a hierarchical structure of microscale papillae and nanofolds. With this micro-nanostructure and surface energy, rose petals exhibit a special property: drops on the petal surface are spherical and do not slide when a petal is held upside down. We replicated the rose-petal surface structure by employing a UV nanomolding process using polyurethane acrylate (PUA) for the first replica and perfluoropolyether (PFPE) for the second replica. PFPE micro-nanostructures, which were identical to the rose-petal hierarchical structure, were formed on a glass substrate. The water contact angle of 144° and contact-angle hysteresis of 83 confirmed that the surface of the glass substrate exhibited a high adhesive force and superhydrophobicity.
AB - Rose-petal surface consists of a hierarchical structure of microscale papillae and nanofolds. With this micro-nanostructure and surface energy, rose petals exhibit a special property: drops on the petal surface are spherical and do not slide when a petal is held upside down. We replicated the rose-petal surface structure by employing a UV nanomolding process using polyurethane acrylate (PUA) for the first replica and perfluoropolyether (PFPE) for the second replica. PFPE micro-nanostructures, which were identical to the rose-petal hierarchical structure, were formed on a glass substrate. The water contact angle of 144° and contact-angle hysteresis of 83 confirmed that the surface of the glass substrate exhibited a high adhesive force and superhydrophobicity.
KW - Adhesion
KW - Biomimetic
KW - Petal effect
KW - UV-molding
KW - Wenzel-Cassie state
UR - http://www.scopus.com/inward/record.url?scp=84894239252&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84894239252&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2014.01.037
DO - 10.1016/j.matlet.2014.01.037
M3 - Article
VL - 121
SP - 170
EP - 173
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
ER -