Adhesion and adhesion degradation of a pressure sensitive tape on carbon steel

摘要: Abstract Corrosion protection of carbon steels by organic coatings is dependent on a good adhesion between coating and substrate. In this work the blister test method was used to study pressure sensitive tape applied steel. Deionized water pressurize formed covering through-hole in steel Values strength as measured strain energy release rate were determined for two different pressurization rates or injection rates. The higher larger rate, which expected tape. These values probably overestimates true owing plastic yielding membrane. Resistance degradation near defects macroscopic scribes characterized using height regulating scanning Kelvin probe samples exposed sodium chloride solution salt spray environment. Although exhibited barrier properties ions, cathodic delamination observed scribe after exposure. Wet/dry cycles more aggressive than continuous exposure, since during exposure corrosion products are washed away. It that oxide layer grows extent wet/dry cycles; therefore, acceleration process associated with “wedge effect” interface.