Effects of Cross-Linkage and Hydroxyl Groups on Bonding Strength between Titanium and Segmented Polyurethane through 3-(Trimethoxysilyl) Propyl Methacrylate

Abstract:

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To create a new material with good biocompatibility and high mechanical strength for artificial organs, titanium (Ti) and segmented polyurethane (SPU) were bonded through 3-(trimethoxysilyl) propyl methacrylate (γ-MPS), and specify causes governing the bonding strength of Ti/γ-MPS/SPU interface. The number of cross-links of SPU and the concentration of active hydroxyl groups on the surface oxide film of Ti were controlled by UV-irradaiton and hydrogen peroxide immersion. The number of cross-links of SPU was measured by differential scanning calorimetry (DSC) and the concentration of the active hydroxyl groups was also determined using a zinc-complex substitution technique. Consequently, Ti/γ-MPS/SPU shear bonding stress was increased with the increase of the number of cross-links of SPU. In addition, the increase of cross-links in SPU also improved the Ti/γ-MPS/SPU shear bonding stress.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

1477-1480

DOI:

10.4028/www.scientific.net/MSF.561-565.1477

Citation:

H. Sakamoto et al., "Effects of Cross-Linkage and Hydroxyl Groups on Bonding Strength between Titanium and Segmented Polyurethane through 3-(Trimethoxysilyl) Propyl Methacrylate", Materials Science Forum, Vols. 561-565, pp. 1477-1480, 2007

Online since:

October 2007

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$35.00

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