Estimation of adhesion durability of an epoxy coating through wet and dry cycles has been investigated. For this purpose, we endeavor to find a correlation between adhesion durability and viscoelastic parameters of coatings. An epoxy resin was cured with four types of hardeners (polyamine, polyamidoamine, polyether polyamine, and cycloaliphatic polyamine-based hardener) and a mixture of two hardeners (polyether polyamine and cycloaliphatic polyamine) in four different mixing ratios (20:80, 50:50, 70:30, 90:10) to achieve various viscoelastic properties. The storage modulus, viscoelastic creep-recovery, electrochemical parameters, and glass transition temperature were determined. Adhesion loss and recovery of adhesion were measured under wet and dry conditions during the time. It was found that creep recovery data correlated exactly with the recovery of adhesion. Creep recovery data were modeled and for the first time, two rheological parameters (viscous ratio and elastic ratio) were defined to predict adhesion durability. Pearson correlation coefficient was used as a statistical measure of the strength of a linear relationship between the paired data. It was found that adhesion durability and recovery of adhesion after wet and dry cycles have a strong linear relationship with viscous and elastic ratios. A coating with a higher viscous behavior in creep recovery tests acts more weakly in the recovery of adhesion. It may be referred to as irreversible strain in a coating that may not be recovered after the elimination of stress.

已经研究了通过湿循环和干循环评估环氧涂层的粘附耐久性。为此，我们努力寻找附着力耐久性和涂层粘弹性参数之间的相关性。环氧树脂用四种固化剂（聚胺、聚酰胺基胺、聚醚聚胺和脂环族聚胺基固化剂）和两种固化剂（聚醚聚胺和脂环族聚胺）以四种不同的混合比（20:80、50: 50, 70:30, 90:10) 以实现各种粘弹性。测定了储能模量、粘弹性蠕变恢复、电化学参数和玻璃化转变温度。在此期间，在湿和干条件下测量粘附力损失和粘附力恢复。发现蠕变恢复数据与附着力恢复完全相关。对蠕变恢复数据进行建模，并首次定义了两个流变参数（粘性比和弹性比）来预测粘合耐久性。Pearson 相关系数被用作对配对数据之间线性关系强度的统计量度。研究发现，干湿循环后的附着力耐久性和附着力恢复与粘性和弹性比具有很强的线性关系。在蠕变恢复测试中具有较高粘性行为的涂层在附着力恢复方面的作用更弱。它可以被称为涂层中的不可逆应变，在消除应力后可能无法恢复。定义了两个流变参数（粘性比和弹性比）来预测粘合耐久性。Pearson 相关系数被用作对配对数据之间线性关系强度的统计量度。研究发现，干湿循环后的附着力耐久性和附着力恢复与粘性和弹性比具有很强的线性关系。在蠕变恢复测试中具有较高粘性行为的涂层在附着力恢复方面的作用更弱。它可以被称为涂层中的不可逆应变，在消除应力后可能无法恢复。定义了两个流变参数（粘性比和弹性比）来预测粘合耐久性。Pearson 相关系数被用作对配对数据之间线性关系强度的统计量度。研究发现，干湿循环后的附着力耐久性和附着力恢复与粘性和弹性比具有很强的线性关系。在蠕变恢复测试中具有较高粘性行为的涂层在附着力恢复方面的作用更弱。它可以被称为涂层中的不可逆应变，在消除应力后可能无法恢复。研究发现，干湿循环后的附着力耐久性和附着力恢复与粘性和弹性比具有很强的线性关系。在蠕变恢复测试中具有较高粘性行为的涂层在附着力恢复方面的作用更弱。它可以被称为涂层中的不可逆应变，在消除应力后可能无法恢复。研究发现，干湿循环后的附着力耐久性和附着力恢复与粘性和弹性比具有很强的线性关系。在蠕变恢复测试中具有较高粘性行为的涂层在附着力恢复方面的作用更弱。它可以被称为涂层中的不可逆应变，在消除应力后可能无法恢复。