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Article: Use of an image analysis technique to quantify pigment dispersion.
- Article from:
- The Journal of Coatings Technology
- Article date:
- October 1, 1991
- Author:
CopyrightCOPYRIGHT 1991 Federation of Societies for Coatings Technology. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
Measuring the degree of pigment dispersion of paint systems is of fundamental importance to the coatings manufacturer since it is known to have a major effect on the optical properties of a paint film, as well as its protective properties, rheological behavior, and cost effectiveness. The term "disperson" is used in the coatings industry to cover a variety of meanings. For example, the coatings manufacturer usually considers dispersion to be related to the number of large pigment particles or nibs present in the finished product, as detected on a fineness of grind gauge. However, this simple technique gives only an indication of the particles ...