Date of Award
6-2001
Degree Name
Master of Science
Department
Chemical and Paper Engineering
Department
Paper Engineering, Chemical Engineering and Imaging
First Advisor
Dr. Margaret K. Joyce
Second Advisor
Dr. Thomas Joyce
Third Advisor
Dr. Alexandra Pekarovicova
Access Setting
Masters Thesis-Open Access
Abstract
This research was focused on determining the influence of applying one type of potato starch of various molecular weights on silicone holdout. Also, combinations of potato starch with a rheology modifier, sodium alginate, of low, medium, and high molecular weight were studied. The base paper employed was a commercially available paper generally used to manufacture release papers.
Sizing with low molecular weight potato starch is more effective for silicone holdout than sizing with high molecular weight potato starch. This study showed that the paper sized with low molecular weight potato starch has a smoother surface, lower permeability, and a smaller average pore size compared to paper sized with the high molecular weight potato starch. Thus, this paper provides better silicone holdout than was achieved by high molecular weight potato starch.
The addition of alginates to the starch solution decreased Gurley porosity significantly. In addition, the alginates decreased the average pore size; the decrease was more evident with the lower molecular weight alginates. Due to more favorable paper properties such as lower permeability, lower water penetration rate, smaller : average pore size, the silicone agent is better retained on the surface of the paper. This could lead to decreasing the amounts of silicone applied to the sized paper, resulting in lower costs for silicone treatment.
Recommended Citation
Suchy, Peter, "Influence of Starch Molecular Weight and Sodium Alginate on Silicone Holdout for Release Papers" (2001). Masters Theses. 4950.
https://scholarworks.wmich.edu/masters_theses/4950