Gradient Structure and Surface Property of Fluorinated Polyacrylate and Polyurethane Latex Blend Films
Gradient Structure and Surface Property of Fluorinated Polyacrylate and Polyurethane Latex Blend Films
- 0
In order to investigate the characteristics of the gradient fluorinated polyacrylate and polyurethane latex blendfilms, the fluorinated polyacrylate emulsion and the polyurethane emulsion were synthesized, and then the both emulsionswere blended at a series of ratios. The effects of content of the fluorinated polyacrylate on the gradient structure and surfaceproperty of the blended films were assessed by AFM, XPS, SEM-EDX and surface free energy measurements. Itappeared that, while the content of the fluorinated polyacrylate latex was up to 30%, the fluorinated polyacrylate particleswere selectively gathered on the film-air (F-A) and film-glass (F-G) interfaces at room temperature. When the contentof the fluorinated polyacrylate was under 30%, the gradient structure of fluorinated component was not evident. The furtherincreasing of fluorinated polyacrylate in the mixed system facilitated the formation and enlargement of gradient structure,but the adhesion of film decreased a little.
In order to investigate the characteristics of the gradient fluorinated polyacrylate and polyurethane latex blendfilms, the fluorinated polyacrylate emulsion and the polyurethane emulsion were synthesized, and then the both emulsionswere blended at a series of ratios. The effects of content of the fluorinated polyacrylate on the gradient structure and surfaceproperty of the blended films were assessed by AFM, XPS, SEM-EDX and surface free energy measurements. Itappeared that, while the content of the fluorinated polyacrylate latex was up to 30%, the fluorinated polyacrylate particleswere selectively gathered on the film-air (F-A) and film-glass (F-G) interfaces at room temperature. When the contentof the fluorinated polyacrylate was under 30%, the gradient structure of fluorinated component was not evident. The furtherincreasing of fluorinated polyacrylate in the mixed system facilitated the formation and enlargement of gradient structure,but the adhesion of film decreased a little.
(0)
(0)