We developed new materials that are called PVA-graft-Latexes. PVA-graft-Latexes are produced by grafting reaction of PVA as protective colloid on the surface of polymer particles. When we coat these PVA-graft-Latexes on the substrate materials such as papers, they show excellently high water resistance. We observed the latex films by using AFM. The structure of the coated film using PVA-graft-Latexes has not changed before and after contact with water. On the other hand, the coated film using conventional latexes has changed remarkably. The contact angle of the coated film using PVA-graft-Latexes was higher than that of conventional latexes.
In this report we describe the characteristics and application of PVA-g-Latexes as water resistance papers with results of structural analysis.