Title:
DURABLE SUPERHYDROPHOBIC SURFACES
Document Type and Number:
WIPO Patent Application WO/2018/101999
Kind Code:
A3
Abstract:
Durable superhydrophobic components have a superhydrophobic material disposed (e.g., disposed) thereon that exhibits an apparent advancing dynamic contact angle of ≥ about 150° and a roll-off angle of about ≤ 15° for water after at least 100 abrasion cycles. The superhydrophobic material may comprise a low surface energy material and a polymeric material. The superhydrophobic material may be self-healing and capable of recovering its wettability after damage. In yet other aspects, a component comprises a surface that is superhydrophobic and reduces drag in turbulent flow conditions. The surface has an apparent advancing dynamic contact angle of ≥ about 150° and a roll-off angle of ≤ about 15° for water, and a product of dimensionless roughness (k+) and a higher-pressure contact angle hysteresis of less than or equal to about 5.8. Methods of making such materials are also provided.
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Inventors:
TUTEJA ANISH (US)
GOLOVIN KEVIN (US)
GOSE JAMES W (US)
BOBAN MATHEW (US)
MABRY JOSEPH M (US)
PERLIN MARC (US)
CECCIO STEVEN (US)
GOLOVIN KEVIN (US)
GOSE JAMES W (US)
BOBAN MATHEW (US)
MABRY JOSEPH M (US)
PERLIN MARC (US)
CECCIO STEVEN (US)
Application Number:
PCT/US2017/050270
Publication Date:
August 02, 2018
Filing Date:
September 06, 2017
Export Citation:
Assignee:
UNIV MICHIGAN REGENTS (US)
US GOV AIR FORCE (US)
US GOV AIR FORCE (US)
International Classes:
C09K3/18; B05D1/02; B05D5/00; B05D7/24; C09D5/16; C09D7/65; C09D201/00
Other References:
SRINIVASAN, SIDDARTH ET AL.: "Solution spraying of poly(methyl methacrylate) blends to fabricate microtextured, superoleophobic surfaces", POLYMER, vol. 52, no. 14, June 2011 (2011-06-01), pages 3209 - 3218, XP055522919
WANG, XIA ET AL.: "The surface properties and corrosion resistance of fluorinated polyurethane coatings", JOURNAL OF FLUORINE CHEMISTRY, vol. 176, August 2015 (2015-08-01), pages 14 - 19, XP055522923
GOLOVIN, KEVIN ET AL.: "Designing self-healing superhydrophobic surfaces with exceptional mechanical durability", ACS APPLIED MATERIALS & INTERFACES, vol. 9, no. 12, 7 March 2017 (2017-03-07), pages 11212 - 11223, XP055522925
"A self-healing, water-repellent coating that's ultra durable", UNIVERSITY OF MICHIGAN NEWS, 4 April 2017 (2017-04-04), XP055522931, Retrieved from the Internet
"Wear resistant self healing hydrophobic coatings", TRIBONET, 1 May 2017 (2017-05-01), XP055522934, Retrieved from the Internet
WANG, XIA ET AL.: "The surface properties and corrosion resistance of fluorinated polyurethane coatings", JOURNAL OF FLUORINE CHEMISTRY, vol. 176, August 2015 (2015-08-01), pages 14 - 19, XP055522923
GOLOVIN, KEVIN ET AL.: "Designing self-healing superhydrophobic surfaces with exceptional mechanical durability", ACS APPLIED MATERIALS & INTERFACES, vol. 9, no. 12, 7 March 2017 (2017-03-07), pages 11212 - 11223, XP055522925
"A self-healing, water-repellent coating that's ultra durable", UNIVERSITY OF MICHIGAN NEWS, 4 April 2017 (2017-04-04), XP055522931, Retrieved from the Internet
"Wear resistant self healing hydrophobic coatings", TRIBONET, 1 May 2017 (2017-05-01), XP055522934, Retrieved from the Internet
Attorney, Agent or Firm:
WOODSIDE-WOJTALA, Jennifer et al. (US)
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