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Evaluating Paper’s Optical Properties after Separate and Combined Use of Nanofibrillated Cellulose with Cationic Starch and Cationic Polyacrylamide
- Source :
- BioResources, Vol 19, Iss 2, Pp 3306-3318 (2024)
- Publication Year :
- 2024
- Publisher :
- North Carolina State University, 2024.
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Abstract
- Nanofibrillated cellulose (NFC) and its combined usage with cationic starch and a cationic copolymer of acrylamide were studied in relation to the properties of paper. Independent pulp treatments using additives separately included 0%, 5%, 10%, and 15% refined long fiber pulp, 3 and 6% NFC, 0.75 and 1.5% cationic starch and 0.07% and 0.15% cationic polyacrylamide and combined treatments. Handsheets were made of the above treatments, and finally their optical and microscopic properties were evaluated. Increasing the NFC content to 6% increased the brightness and yellowness of the white liner by 13% and 21%, respectively. The liner opacity was also reduced by 1%. Additionally, increasing NFC by 6% compared to imported long fibers, the brightness and yellowness of the white liner increased 5.44% and 6.3%, respectively. The liner opacity was also reduced by 1%. A 1.5% cationic starch addition to NFC increased the brightness of the white liner by 4.4%, its whiteness increased 1.5%, and its yellowness increased 2.1%. The opacity of the liner was also reduced by 7.1%. The use of NFC and cationic starch can improve the optical properties of the white liner, while imported long fibers may be problematic.
Details
- Language :
- English
- ISSN :
- 19302126
- Volume :
- 19
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- BioResources
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.2fd6d643ec1f47c393e7d694684bcd6e
- Document Type :
- article