Date of Award
12-1992
Degree Name
Master of Science
Department
Chemical and Paper Engineering
First Advisor
Dr. James E. Kline
Second Advisor
Dr. Ellsworth Shriver
Third Advisor
Dr. Nick G. Triantafillopoulos
Access Setting
Masters Thesis-Open Access
Abstract
The effects of pigment size and shape on coating structure and binder migration has been investigated. Clays and ground calcium carbonates of different particle size distributions were used in coatings with 15 pph SB latex.
Coatings were applied to Mylar and a special Tyvek using a wire wound rod. The coatings were dried slowly under ambient conditions, and using hot air immediately or after having been allowed to reach immobilization through penetration into the Tyvek. The dried coatings were evaluated for water holding, relative pore size and migration using the UV technique to measure the increase in SB latex at the surface due to hot air drying.
Results showed that filler clay and calcium carbonate of large particle size resulted in a higher degree of binder migration. It was observed that rhombic shaped particles contributed to more migration than plate-shaped particles. Drying immediately after the application of coating allowed more binder to migrate to the surface than any other drying method.
Recommended Citation
Yang, Hee Jong, "A Study of the Effects of Pigment Size and Shape on Binder Migration" (1992). Masters Theses. 955.
https://scholarworks.wmich.edu/masters_theses/955