Nano Science and Technology Institute
Nanotech 2007 Vol. 2
Nanotech 2007 Vol. 2
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 2
Chapter 2: Polymer Nanotechnology

Surface modification of Cp-Titanium by Plasma polymerization of acrylic acid

Authors:S.J. Park, D.L. Cho, H.J. Park and Y.M. Ko
Affilation:College of Dentistry, 2nd stage of brain korea 21, Chosun University, KR
Pages:176 - 179
Keywords:surface modification, titanium, plasma polymerization, acrylic acid
Abstract:Cp titanium sheet (15 mm x 15 mm) was used to two different surface treatments, including, etching with an HCl/H2SO4 solution and non-treated bare Ti sheet. To improve the adhesive strength of AA films, we carried out two step plasma deposition process. The first step was treated by 80W for 5 min and then second step was performed by 20W-60W for 20 min. Fourier transform infrared (FTIR) was used to study the effect of second step plasma power on the structure of the AA films. The peak of C=O intensifies as the plasma power at 40 W, indicating a strong plasma power dependence. The content of carboxyl groups were evaluated by toluidine bule O (TBO) assay and contact angle. These results showed that acid etched Ti sample displayed lower contact angle (32o) and more carboxyl group. The surface topography of samples was analyzed by using scanning electron microscopy (SEM). SEM images showed that thin film of the AA layer (800 nm) was uniformly deposited on the cp Ti surfaces. These results suggest that plasma polymerization treatment for cp-Ti may improve hydrophilicity and have functional group. This behavior suggests a possibility of a further favorable Ti implant.
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