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Effect of Organic Bentonite on Rheological Properties of Paper Coating

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Abstract:

Effect of organic bentonite on rheological behavior of paper coating was studied. Organic bentonite was prepared by treating sodium bentonite with dimethyl diallyl ammonium chloride (DADMAC) at the following conditions: DADMAC 20%, reaction time 3h, reaction temperature 80°C and pH 9. The results showed that shear stress and voscosity of coating enhance with increasing the amount of organic bentonite. In this testing, all of flow curves fitted Cross model very much, and rheologiclal properties showed the pseudoplastic fluid, characterized as obvious shear thinning .The bentonite modified with DADMAC could promote the rheological behavior of coating.

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Periodical:

Advanced Materials Research (Volumes 197-198)

Pages:

383-386

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.197-198.383

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Online since:

February 2011

Authors:

Hu Nan Liang, Zhu Long, Shu Hui Yang

Keywords:

Cross Model, Organic Bentonite, Paper Coating, Rheological Property

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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References

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