Polyester resins corrosion behavior

Corrosion Behavior of Epoxy and Unsaturated Polyester Resins in Alkaline Solution... [Pg.314]

The effect of temperature and concentration on corrosion behavior and corrosion mechanism of epoxy and polyester resins in NaOH solution were studied, and were discussed by considering their structures. [Pg.314]

Iso-phthalic polyester resin was corroded with the formation of the color changed surface layer and corrosion rate of the resin were controlled by diffusion process of the solution through the layer. Thus similar behavior was observed to oxidation corrosion of metal obeying Wagner s parabolic law. The difference of behaviors of these resins were mainly due to the position of ester bonds in the structures. [Pg.314]

Hidemitsu Hojo et al. (Hidemitsu et al., 1998) reviewed the behavior, the forms and mechanisms of corrosion of resins and glass fiber reinforced plastics under several aqueous solutions. They concluded that the concept of the corrosion rate of metals could be applied even in plastics and fiber reinforced plastics for each corrosion form. The corrosion resistance of the composites is mainly dependant on the resin s corrosion resistance properties and the corrosion crack propagation. Applications requiring corrosion resistant composite materials usually use epoxy and polyester resin as the composite matrix because these thermosets have high resistance to chemical attack. Among the various type of resins epoxies dominate the... [Pg.306]

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