M. Hussain et al., EFFECTS OF COUPLING AGENTS ON THE MECHANICAL-PROPERTIES IMPROVEMENT OF THE TIO2 REINFORCED EPOXY SYSTEM, Materials letters, 26(6), 1996, pp. 299-303
A study was carried out to investigate the effects of different coupli
ng agents on the mechanical properties of the TiO2 particulate filled
epoxy composite. Composites prepared by dispersing TiO2 coated with a
silane coupling agent were compared with titanate coupling agent coate
d TiO2 dispersed composites. Young's modulus and flexural strength of
titanate coupling agent treated composites were significantly improved
compared to silane coupling agent treated composites. It was suggeste
d that a strong interfacial bonding between the filler and the matrix
existed when the titanate coupling agent was used and was explained by
the adhesion model. Scanning electron microscopy studies revealed a b
etter dispersion of surface modified filler particles and a strong adh
esion/bonding between the filler and the matrix.