Date of Award
12-1985
Degree Name
Master of Science
Department
Chemical and Paper Engineering
First Advisor
Dr. Richard Valley
Second Advisor
Dr. James E. Kline
Access Setting
Masters Thesis-Open Access
Abstract
The sizing chemical ASA is emulsified to make i t compatible with the papermaking process. Unfortunately, emulsified ASA is chemically reactive with water at the elevated temperatures found in papermaking systems. As an alternative, encapsulated ASA was made and investigated for its stability towards water at elevated temperatures.
A handsheet procedure was developed to analyze emulsified and encapsulated ASA. It was concluded that the procedure gave statistically reproducible results. Investigations with the procedure revealed important variables concerning the laboratory and m ill application of ASA. Evidence indicated that retention of ASA was critical to sizing development.
Encapsulated ASA made for this study was not superior to emulsified ASA with respect to stability. It was hypothesized that the pH at which the capsules were manufactured led to a chemical reaction of ASA that rendered it useless for sizing.
Recommended Citation
Corriveau, William J., "Microencapsulation as an Alternative to Emulsification for Preparing as a for Use in Papermaking" (1985). Masters Theses. 1372.
https://scholarworks.wmich.edu/masters_theses/1372
Included in
Materials Science and Engineering Commons, Wood Science and Pulp, Paper Technology Commons