The adhesion between latex-polymers and cellulose or silica surfaces has been measured with colloidal probe AFM (atomic force microscopy) and a JKR type instrument. The latex-polymers originate from latexes having different Tg ranging from -20�C to 60�C. It is clear that the polymer with lowest Tg have the largest adhesion and the adhesion decreases as Tg is increased. An increase of time in contact also increases the adhesion, whereas an increased maximum applied load did not increase the adhesion. These results indicate that the polymer mobility has a strong effect on the adhesion obtained for the measured systems. The AFM and JKR measurements did not give identical values, but the trends between the different polymers are same even though they are measured at different length scales. The largest adhesion is not surprisingly found for the latex-polymer having Tg below the ambient temperature at which all measurements were conducted.

Adhesion between latex-polymers and cellulose or silica surfaces

243rd National Meeting (2012)

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