Effects of silane coupling agents and solutions of different polarity on PMMA bonding to alumina

Abstract

The objective of this study was to clarify the effects of silane coupling agents and solutions of different polarity on polymethyl methacrylate (PMMA) bonding to alumina. Three silane coupling agents (3-methacryloxypropyltrimethoxysilane (MPS), 3-aminopropyltriethoxysilane (APS) and N-2 (aminoethyl) 3-aminopropyltriethoxysilane) and 3 different polar solutions, 70% ethanol, isopropanol and toluene, were selected for silanization. Shear bond strengths were statistically compared with Tukey HSD (α=0.05). The alumina surfaces after silanization and shear bond test were examined with an energy dispersive spectrometer (EDS). The bond strengths of PMMA on the alumina with MPS (15.0 MPa), APS (13.8 MPa) in ethanol were greater than the others in nonthermocyclings. The bond strength decreased after thermocyclings. The ethanol groups were greater than the others. EDS revealed Si remaining on the alumina surface after the shear bond test. The results indicated that the silanization using MPS and APS with ethanol solution was effective.

Immobilization of Antibodies and Enzymes on 3-Aminopropyltriethoxysilane-Functionalized Bioanalytical Platforms for Biosensors and Diagnostics

“…67 The effect of silanization on poly(methyl methacrylate) (PMMA)− alumina bonding of 3-methacryloxypropyl-trimethoxysilane, APTES, and N-(2-aminoethyl)-APTES, reconstituted in water, has been discussed elsewhere. 68 Aqueous silanization has also been advocated for various nanoparticulate surfaces due to its simplicity. Magnetic NPs are silanized using a water-doped organic solvent (∼2% water) 69 or 10% (v/v) APTES in water.…”

Reinforcing Poly(methyl methacrylate) with Bacterial Cellulose Nanofibers Chemically Modified with Methacryolyl Groups

“…The differences in the abilities of APC and MPC to reinforce PMMA is likely to be due to differences in the organic functional groups on their surfaces ( Figure 12 ). In the case of the former, amino groups bonded to the NFBC surface through the silane linkage can form up to two hydrogen bonds and one dipole–dipole interaction with the acrylic groups of PMMA to provide strong NFBC/PMMA adhesion [ 35 , 36 ]. On the other hand, the methacryloyl groups of MPC can only form up to two dipole–dipole interactions with the acrylic groups of PMMA [ 36 , 37 ]; hence, the MPC surface adheres less to PMMA than APC.…”

“…In the case of the former, amino groups bonded to the NFBC surface through the silane linkage can form up to two hydrogen bonds and one dipole–dipole interaction with the acrylic groups of PMMA to provide strong NFBC/PMMA adhesion [ 35 , 36 ]. On the other hand, the methacryloyl groups of MPC can only form up to two dipole–dipole interactions with the acrylic groups of PMMA [ 36 , 37 ]; hence, the MPC surface adheres less to PMMA than APC. However, the structural similarity between the methacryloyl group of MPC and the PMMA molecule itself increases affinity at the MPC/PMMA interface, leading to a maximum tensile strength at a concentration of only 0.1 wt% without any decline in the tensile elongation of the composite.…”

Effect of silane compounds on bonding to fused quartz of tri-<i>n</i>-butylborane initiated resin

“…Nihei et al reported that wearing a composite containing fillers treated with 3-MPPTS led to significantly less degradation compared with the composite materials containing fillers pretreated with 3-TMSPMA 12) . There are several reports about the influence of the bond durability for silane coupling agents with different structures [13][14][15] . However, there are few reports on the bond durability to 3-MPPTS 12) .…”