Models for the Rheology of Clay-GCC Coating Colors, 2008 Advanced Coating Fundamentals Symposium



ARE YOU A TAPPI MEMBER? TAPPI members have exclusive, FREE access to technical conference papers and presentations six months after the conference in TAPPI's e-library. The e-Library offers:

  • Unlimited access to more than 18,000+ documents
  • Fast, robust search engine for fast search results
  • Members get FREE access to conference proceedings, TAPPI JOURNAL articles, Paper360º articles, archived Solutions! articles, and much more
  • View thousands of technical paper abstracts
  • Ability to search by keyword, title, author, events or industry segment

*Technical papers and presentations are available for sale immediately following the conferences before the 6 month embargo period.

Please Note: This document will be available in PDF format in the "My Electronic Documents" link on the home page once your order has been completed. Please make sure you have the latest version of Acrobat Reader. Click on the Acrobat Reader icon to check for the latest version, it’s FREE. To print a hardcopy of a PDF file correctly you must have a postscript printer. If you are not sure if your printer is a postscript printer please refer to your owner’s manual.

Modifications to standard models from the literature were used to predict the viscosity and apparent yield stress of coating suspensions as functions of shear rate and solids content. An experimental investigation was also carried out to obtain the required experimental data. The impact of the key factors, viz. particle-particle interactions, pigment properties and binder system was examined. The pigment type significantly affected the coating rheology due to modifications in the coating suspension microstructure. The partial replacement of latex by starch only reduced the viscosity and yield stress of coating colors based on ground calcium carbonate (GCC). However, the partial replacement of the binder did not affect the rheology of clay-based coating colors. A modified Maron-Pierce correlation was used along with the apparent yield stress to obtain the maximum packing fraction of the suspensions under low shear conditions. A Casson-type 3-parameter model was also developed. This model is capable of fitting the data over the entire range of shear rates, including the apparent yield stress region of the structured materials. All the model parameters bear physical meanings.

Author: Saeid Savarmanda, Pierre J. Carreau, François Bertrand, and David J.-E. Vidal
Models for the Rheology of Clay-GCC Coating Colors
Models for the Rheology of Clay-GCC Coating Colors, 2008 Advanced Coating Fundamentals Symposium
35.00

New Releases

TAPPI PRESS Catalog eBook 2024


Experience the Power of Publications in the 2024 TAPPI Press Catalog


Open


 

Kraft Recovery Boilers, Third Edition  


Sponsored by the Recovery Boiler Program R&D Subcommittee of the American Forest & Paper Association (AF&PA) and published by TAPPI Press.


Purchase


 

Handbook For Pulp and Paper Technologists (The SMOOK Book), Fourth Edition

The best-selling text to introduce the entire technology of pulp and paper manufacture.

Purchase

 

Guidelines for Safe Assessment and Operation of Yankee Dryers  


A project of the Yankee Dryer Safety & Reliability Committee.

Purchase

 

Check our newest additions.


TAPPI Press offers some of the most in-depth resources and references for the forest products and related industries. 

See More

   
 

Available for Purchase – Conference Proceedings


TAPPI maintains a record of key conference papers, presentations, and other conference publications, available for purchase in a variety of formats.

See More