Abstract
AbstractThe use of electron diffraction and adhesive strength tests as a method of direct evaluation of the effects of surface treatment of glass fiber on mechanical properties of fabric‐reinforced plastics is proposed. Glass plates, similar in quality to the glass fiber used in fabric‐reinforced plastics and surface‐treated with Volan and silane finishing compounds, are used as test specimens in these tests in order to eliminate complicated factors due to glass cloth reinforcement. The results obtained from tests of adhesive strength of lap joints are closely correlated with the improvement of mechanical properties fabric‐reinforced plastics by surface treatments of glass fiber; however, the molecular orientation of surface‐finishing compounds on glass plates, as determined from the electron diffraction pattern, has no such close relationship. In 18‐8 stainless steel plate surface‐treated by the procedures (chosen as the test specimen for comparing the effect of surface treatments on other materials) no such improvement due to surface treatment was noted.
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