Biomimetic Wax Interfaces Facilitating Rehealable Polymer Composites

doi:10.3390/polym13183052

CNU IR > Pharmacy and Science > Dept. of Cosmetic Science and institute of cosmetic science > Periodical Articles > Item 310902800/34369

Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/34369

Title:	Biomimetic Wax Interfaces Facilitating Rehealable Polymer Composites
Authors:	Kuo, Ching-Te Chen, Chien-Chin
Contributors:	Natl Sun Yat Sen Univ, Dept Mech & Electromech Engn Chia Nan Univ Pharm & Sci, Dept Cosmet Sci Ditmanson Med Fdn, Dept Pathol, Chia Yi Christian Hosp
Keywords:	biomimetic wax rehealable polymer composite
Date:	2021
Issue Date:	2023-11-11 11:47:51 (UTC+8)
Publisher:	MDPI
Abstract:	Epicuticular wax, the first protective film for numerous ground plant species, is crucial for modulating the evolution in plants. Since the waxy film is inherently thermoresponsive, many efforts focus on engineering materials for water/oil proofing, delivery, and collection, as well as microactuators by mimicking such film nature. Nonetheless, relatively fewer works address the mechanism of how the underlying substrates direct the reconstruction of waxy films while their temperature approaches the melting point. Here, we presented a strategy in which distinct frameworks of molten wax films could be examined among various substrates. Both waxphobic and waxphilic traits were first unveiled and could be achieved by the hydrophilic (water contact angle (WCA) = 42 similar to 82 degrees) and hydrophobic (WCA = 109 degrees) substrates, respectively. A theoretical model, based on experimental results, fluidic dynamics, and balance of surface energy, was developed to elucidate the above findings. Moreover, we demonstrated the above biomimetic epicuticular surface (BeSurface) can be applied for rewritable paper, erasable coding, and rehealable electronics without manual repairing. Remarkably, the healing time can be reduced down to 30 s, and the cycled folding test can be continued up to 500 times. All the new findings present the potentials of the BeSurface to improve the study of rehealable materials.
Relation:	POLYMERS-BASEL, v.13, n.18, pp.3052
Appears in Collections:	[Dept. of Cosmetic Science and institute of cosmetic science] Periodical Articles

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