NDLI: Embossed superhydrophobic polymer surfaces with topological variances

Content Provider	Springer Nature Link
Author	Lee, Sang Eon Lim, Hun Gwang Lee, Seung Seob Choi, Dae Geun Lee, Dongjin Hong, Seong Uk
Copyright Year	2013
Abstract	In this report, we compare hot and ultraviolet (UV) embossing processes to fabricate hydrophobic surfaces with topological variance. In the hot embossing process, polypropylene was pressurized on a nickel mold with heat, while UV-curable polyurethane acrylate (PUA) was dispensed on the mold followed by UV exposure during the UV embossing process. Cylindrical micro-pillars were successfully replicated using two types of embossing processes with the same mold. The contact angles were then compared at various pillar diameters and with different embossing processes. Although the materials and embossing techniques were different, we achieved a contact angle (CA) enhancement of about 40%. The water contact angle of a transferred substrate, fabricated by the UV embossing process, was 138°. This was much higher than that of flat UV-cured PUA (78°). In addition, we fabricated reverse pillar-shape packing materials for good wettability and then compared the CA values. With the reverse-shape model, we were able to enhance the wettability and decrease the degree of hydrophobicity. This will be beneficial for lipophilic packing materials. This oleophilic characteristic demonstrates enhanced lubrication capabilities as a retort curry packing material.
Starting Page	916
Ending Page	920
Page Count	5
File Format	PDF
ISSN	15985032
Journal	Macromolecular Research
Volume Number	21
Issue Number	8
e-ISSN	20927673
Language	English
Publisher	The Polymer Society of Korea
Publisher Date	2013-02-09
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	superhydrophobic surfaces contact angle food packaging materials Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Physical Chemistry Characterization and Evaluation of Materials Nanochemistry Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics

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