1. Effects of cellulose nanofibrils and starch compared with polyacrylamide on fundamental properties of pulp and paper
- Author
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Hossein Jalali Torshizi, Milad Tajik, Hossein Resalati, and Yahya Hamzeh
- Subjects
Paper ,Chemical Phenomena ,Starch ,Polyacrylamide ,Acrylic Resins ,Nanofibers ,Bagasse pulp ,engineering.material ,Biochemistry ,chemistry.chemical_compound ,Biopolymers ,stomatognathic system ,Structural Biology ,Nano ,Cellulose ,Molecular Biology ,Mechanical Phenomena ,chemistry.chemical_classification ,Pulp (paper) ,Cationic polymerization ,General Medicine ,Polymer ,Chemical engineering ,chemistry ,engineering - Abstract
Bio-based additives received significant attention in pulp and paper properties improvement. For this, the most cited biochemical Cellulose Nano Fibrils (CNFs) and Cationic Starch (CS) were experimentally compared with the most declared synthetic chemical, Cationic Polyacrylamide (CPAM). SEM images showed better paper surface filling by the utilization of the chemicals. The three studied polymers, in solely or combination mechanism, improved mainly bagasse pulp and paper properties compared to the blank sample, except for pulp drainage, which decreased by CNFs to lower volumes presumably due to its intrinsic characteristics. Cationic polymers (CP) compared to CP/CNFs approaches increased pulp retention and drainage but decreased paper density and strengths. The best pulp retention and drainage achieved by CS followed by CPAM, while paper air persistency, density, and strength properties evaluated highest by CP/CNFs followed by CNFs. Generally, CS revealed a more significant improvement in pulp and paper properties than CPAM either with or without CNFs.
- Published
- 2021