TY - GEN
T1 - Effects of cross-linkage and hydroxyl groups on bonding strength between titanium and segmented polyurethane through 3-(trimethoxysilyl) propyl methacrylate
AU - Sakamoto, Harumi
AU - Hirohashi, Yohei
AU - Doi, Hisashi
AU - Noda, Kazuhiko
AU - Hanawa, Takao
PY - 2007/12/1
Y1 - 2007/12/1
N2 - 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 (y-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/y-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/y-MPS/SPU shear bonding stress.
AB - 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 (y-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/y-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/y-MPS/SPU shear bonding stress.
KW - Active hydroxyl groups
KW - Cross-links
KW - Segmented polyurethane
KW - Silane coupling agent
KW - Titanium
UR - http://www.scopus.com/inward/record.url?scp=38349104582&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38349104582&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:38349104582
SN - 0878494626
SN - 9780878494620
T3 - Materials Science Forum
SP - 1477
EP - 1480
BT - Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
T2 - 6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
Y2 - 5 November 2007 through 9 November 2007
ER -