AbstractBy using a similar apparatus to that described by Baer and McLaughlin but differing in detail, the surface characteristics of samples of polyethylene, polypropylene, and a woven glass fiber/polyester laminate have been studied after periods of immersion in sulfuric acid at 60°C. Results show considerable progressive variation over the range of immersion times employed (up to 170 hr.), suggesting that surface changes might be considered as a measure of the corrosion involved. (No measure of the corrosion was attempted). The presence of a water layer on the surface of the test piece is suggested as being the reason for the plot of sin αsversus V‐2/3giving an intercept on the sin αsaxis whereas in the original work of Baer and McLaughlin the plot passes through the or
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