面漆缩孔缺陷分析与防治

Analysis and Prevention of Shrinkage Defects in Finish Paint

缩孔的形成是由于表面张力梯度造成的,在涂料涂布后,可能因为自身成分、烘干过程漆膜的表面张力变化或者外来物质影响界面平衡而形成缩孔。结合公司发生的缩孔案例,列举了现场可能造成缩孔的污染源以及相应对策。

The reason for the formation of shrinkage cavities is due to the surface tension gradient.After the coating is applied,shrinkage cavities may be formed due to its own composition,the surface tension changes of the paint film during the drying process or the influence of foreign substances on the interface balance.Combining the company’s case of shrinkage,the pollution sources that may cause shrinkage on site and the corresponding countermeasures were listed.