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Sunday, 22 September 2019
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Raw materials & technologies, Raw materials

Styrene-butadiene latex carboxylation effects adhesion

Wednesday, 21 May 2014

Styrene-butadiene latices are widely used as binders in pigmented coatings for the paper and board industry.

From coatings to adhesion is just a small step, also to know more about the carboxylation influences on paper Source: Emir Simsek-Fotolia.com

From coatings to adhesion is just a small step, also to know more about the carboxylation influences on paper Source: Emir Simsek-Fotolia.com

White pitch deposition, which is one type of surfaces fouling, is a well-known problem at paper machines using coated broke as a raw material. The main component of white pitch is latex, such as styrene-butadiene. The viscoelastic properties of styrene-butadiene latex have been found to affect on white pitch formation, but the effect of carboxylation is not been studied extensively. Carboxylation has traditionally performed to latices in order to increase colloidal stability, but it has also effect on mechanical properties of the latices.

Carboxylation influences adhesion potential

In a paper, Finnish researchers studied the adhesion potential of three styrene-butadiene latices by using a cylindrical probe tack method under dry and aqueous conditions while varying the carboxylation degree of the latex. Adhesion potential was measured using low and high energy surfaces as an adherent. The results show that carboxylation influences adhesion potential of latices in both dry and aqueous environments.

The study is published in: International Journal of Adhesion and Adhesives.

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