| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable earlier detection of degradation of a coating film including a heavy corrosion-resistant coating, etc. <P>SOLUTION: A method includes: measuring an initial temperature change in loss tangent of a coating to be measured by dynamic viscoelasticity measurement, detecting a peak by a β relaxation of a resin constituting the coating in the measured temperature change in loss tangent, and determining a temperature at which the peak appears as an initial value in step S101; measuring a temperature change in loss tangent of the coating to be measured by dynamic viscoelasticity measurement after the dynamic viscoelasticity measurement has been executed for detecting the β relaxation determined as the initial value, detecting a peak by the β relaxation of the resin constituting the coating in the measured temperature change in loss tangent, and determining the temperature at which the peak appears as a determination value in step S102. <P>COPYRIGHT: (C)2013,JPO&INPIT |
