Abstract
To study the water-resisting property of the silanized layer at the silica-resin interface, 1-methacryloyloxymethyltrimethoxysilane (1-MMS), 3-acryloyloxypropyltrimethoxysilane(3-APS), N, N-Bis (trimethoxysilylpropyl)-methacrylicacidamide (MBPS), and 3-methacryloyloxypropyltrimethoxysilane (3-MPS) as a control were examined. The tensile bond strength of the resin composite to glass plates modified with 50mmol/l ethanol solution of each silane was measured. The tensile bond strength of one-day storage at room temperature of 1-MMS and 3-APS showed no significant difference from those of 3-MPS and no significant decreases with the time course of water storage periods. On the contrary, the tensile bond strength of 3-MPS and MBPS in water storage groups showed a significant decrease compared to the room temperature storage group. It was suggested that the silane coupling layer of 1-MMS and 3-APS had a high water resistance.
