Date of Award


Degree Name

Bachelor of Science


Paper Science and Engineering


A new cationic polymeric microparticle (CPMP), which is not yet commercialized, has been developed as a retention and flocculation aid. To study the effectiveness of this new cationic polymeric microparticle as a retention aid it was used in conjunction with both a cationic polyacrylamide (CPAM) and an anionic polyacrylamide (APAM). Laboratory evaluation involved using a Britt Dynamic Drainage Jar, two different furnishes and multiple retention system addition levels to test for fines retention. The two systems were then evaluated individually and compared.

It was found that both the CPMP-APAM and CPMP-CPAM systems were beneficial in retaining both fiber and filler fines. It was also seen that the CPMP-APAM system gave better retention results for both furnishes at all addition levels.