Deposition characteristics of gamma-ureidopropyltrimethoxysilane onto E-glass fibres using toluene carbon tetrachloride as carrier solvents

Industrial grade gamma -ureido-propyltrimethoxysilane was adsorbed onto ind ustrial grade E-glass fibres from toluene and carbon tetrachloride at 23 de greesC. The treated surfaces were characterised using thermogravimetry, dif fuse reflectance Fourier transform IR spectroscopy, electron spectroscopy f or chemical analysis, scanning electron microscopy and the zeta potential. When ureidosilane was deposited from toluene and CCl4, both of which have v ery low hydrogen-bonding ability, a ureido surface was obtained. The ureido silane deposited from CCl4 hydrolysed at the surface and condensed to form a solvent-swollen Si-O-Si network. The ureidosilane deposited from toluene also hydrolysed at the E-glass surface. Condensation of the silane deposite d from toluene was not apparent. Aluminium. dissolved from the E-glass surf ace was condensed into the network of the silane deposited from CCl4. Alumi nium was not detected at the surface of the samples with ureidosilane depos ited from toluene.