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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Advanced Functional and Structural Thin Films and Coatings
Presentation Title Improvement of Hydrophilicity and Wetting Behavior on Patterned PLA Substrates by AP Plasma Treatment and APTES Grafting
Author(s) Mai Ngọc Phương Uyên, Po-Yu Chen
On-Site Speaker (Planned) Mai Ngọc Phương Uyên
Abstract Scope Polylactic acid (PLA) substrates with tunable wettability and unidirectional wetting behavior were fabricated by combining 3D printing and surface modification. The atmospheric pressure plasma (APP) was used to modify the PLA surface, followed by grafting with (3-aminopropyl)triethoxysilane (APTES) in hydrolysis solution to achieve hydrophilicity with measured contact angle of ~45°. Atomic force microscopy (AFM) was applied to characterize morphology after different treatments. The success of hydrolyzed APTES grafting onto surface was confirmed by X-ray photoelectron spectroscopy (XPS), which showed increases in C1s, O1s and N1s peaks of the grafted sample compared to untreated and plasma treated sample. The effective hydrophilicity was certified by investigating the long-term durability in contact angles on the treated PLA samples after 20 days. Furthermore, arrowhead-structured arrays were designed and fabricated by 3D printing followed by AP plasma modification and grafting, which further exhibited unidirectional liquid transportation and can be applied in various fields.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Surface Modification and Coatings, Thin Films and Interfaces

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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A-6: The Effect of Additives in Hybrid Zr-based Chemical Conversion Coating on the Surface Morphology Chemical Compositions and Corrosion Resistance
A-7: Tribocorrosion Performance of Polymer-derived Ceramic Coatings on 304 Stainless Steel
Application of Mg/Al2O3 and Mg/SiO2 Nanolaminates for Uniform and Controlled Corrosion of Biodegradable Implants
Bandgap Emission of Czochralski-silicon Coated with Spin-coated Silica Using Various Catalysis
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Effect of Oxygen Partial Pressure and Pulse Frequency on the Structure and Properties of Tungsten Incorporated Ga2O3 Films made by Pulsed Laser Deposition
Effects of Femtosecond Laser Shock Peening on the Tribocorrosion Resistance of Biodegrade WE43 Magnesium Alloys
Ellipsometry Characterization of Plasmonic Responses of Nanoparticles
Fifty Shades of TiN: How Deposition Conditions Influence the Growth Morphology and Thereby Hardness and Especially Fracture Toughness
Grafting Phosphonic Acid Polymers onto Titanium Implant by UV Irradiation
Improvement of Corrosion Resistance of A36 Steel Using SiC and TiB2 Thermally Sprayed Coatings
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Numerical Study of Intrinsic Stresses in Perovskite-on-Si Solar Cells with Intermetallic Bonding
Performance of nc-AlTiN/Si3N4 and ZrO2/Al2O3 Coated Carbide Inserts in Dry Turning of AlSI304 Stainless Steel
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Polymeric Coatings Embedded with Green Anti-corrosive Pigment for Corrosion Inhibition of Steel
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Study on Surface Cracking and Interfacial Delamination of Metallic Coatings Using a Tension Test
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