Direct monitoring of silane/epoxy interphase chemistry 

 -  Composites Part A: Applied Science and Manufacturing, 29(5-6), p.495-502 , 1998 .
<br/><br/> Evanescent wave spectroscopy has been used to directly monitor the interactions between an epoxy resin and an amino silane coupling agent, -aminopropyltrimethoxy silane (-APS)adsorbed on silica fibers. First, it was shown that reactions of the adsorbed silane molecules could be monitored as a function of drying at elevated temperature. Next, the silane surface treated fibers were embedded in the epoxy resin and the primary amine reactivity of the silane at 70°C was measured by the decrease from the initial absorbance height of the combination band at 4925 cm-1. It was found that there was a decrease of 13 
<br/><br/><label>Subjects--Topical Terms: </label><br/>B. INTERFACE<br/>INTERPHASE<br/>EVANESCENT WAVE SPECTROSCOPY<br/>SILANE/EPOXY REACTIVITY