
Proceedings Paper
A study on self-assembled activation by Pd/Sn colloidsFormat | Member Price | Non-Member Price |
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Paper Abstract
3-Aminopropyltriethoxysilane (APTS) was used to form self-assembled molecular layers on ABS plastics surface and
changed surface electrification. The processes were investigated by X-ray photoelectron spectra (XPS). After APTS
treatment, the surface has some hydroxyl group which has hydrophilicity and the contact angle of ABS surface reduced.
APTS-modified ABS surface has C, O, N and Si element and the results show that APTS was bonded on ABS surface.
It was turned out that N and O element formed chemical bond with the ABS surface. The outermost electron
configuration of Pd2+ is 4d85s0p0 and adopted dsp2 hybridization commonly. The electron wasn't filled with d orbital. O
has two lone pair electrons while N has one lone pair electron, which can place the Pd vacancy orbital forming O-Pd or
N-Pd
σcoordinate bond. Based on XPS result, we proposed the mechanism for hydrolyzing of APTS in alcohol
solution, APTS adsorbing on ABS plastics surface and its effect in activation process. After APTS hydrolyzed in water
solution and forms 3-Aminopropyltrihydroxysilane which condensed in alcohol solution at 65°C and forming
copolymer. The copolymer self-assembled on ABS surface and after hydrolyzing can form --O-- bond which react with
Pd0 in succedent steps. After modification with APTS, the amount of adsorption of Pd/Sn colloids increased from
0.95mg/dm2 to 1.07mg/dm2.
Paper Details
Date Published: 31 October 2007
PDF: 7 pages
Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 64234O (31 October 2007); doi: 10.1117/12.780304
Published in SPIE Proceedings Vol. 6423:
International Conference on Smart Materials and Nanotechnology in Engineering
Shanyi Du; Jinsong Leng; Anand K. Asundi, Editor(s)
PDF: 7 pages
Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 64234O (31 October 2007); doi: 10.1117/12.780304
Show Author Affiliations
Guojun Dong, Harbin Engineering Univ. (China)
Published in SPIE Proceedings Vol. 6423:
International Conference on Smart Materials and Nanotechnology in Engineering
Shanyi Du; Jinsong Leng; Anand K. Asundi, Editor(s)
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