物理化学学报2001，Vol.17Issue(3)：241-244,4.
颜料体积浓度对水在醇酸涂层中传输行为的影响
Effect of PVC on the Diffusing Behavior of Water through Alkyd Coatings
摘要
Abstract
The diffusing behavior of water through alkyd coatings with different pigment volume concentration (PVC) has been studied by EIS and SEM techniques. The corresponding diffusion coefficients were also calculated. The experimental results showed that, in 0.5 mol· L－ 1 NaCl solution, the diffusion process of water through alkyd coatings with different PVC followed the ideal Fick′ s law in the initial period.Within the PVC value concerned, the diffusion coefficients initially decreased with the increase of PVC parameter, reaching a minimum value at 60 ％ , which is the CPVC of micaceous iron oxide, and then increased with the PVC increase. When the PVC was less than CPVC, the barrier property produced by the pigment was the main factor that affected the water diffusion behavior. However, the microstructure of the alkyd coatings played an important role when the PVC was greater than CPVC.关键词
电化学阻抗谱（EIS）/SEM/颜料体积浓度（PVC）/醇酸涂层/传输行为/扩散系数分类
化学化工引用本文复制引用
刘斌,李瑛,林海潮,曹楚南..颜料体积浓度对水在醇酸涂层中传输行为的影响[J].物理化学学报,2001,17(3):241-244,4.
