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Carrageenan as a dry strength additive for papermaking.
- Source :
- PLoS ONE; 2/7/2017, Vol. 12 Issue 2, p1-11, 11p
- Publication Year :
- 2017
-
Abstract
- Carrageenans are commercially important sulfated gums found in various species of red seaweeds (Rhodophyta), wherein they serve a structural function similar to that of pectins in land plants. In this study, carrageenan was used independently or in combination with cationic polyacrylamide (CPAM) and/or Al<subscript>2</subscript>(SO<subscript>4</subscript>)<subscript>3</subscript> to explore its application as a dry strength additive in papermaking. Strength index determination, ash content detection, FTIR characterization and SEM observation were performed on prepared handsheets. The results showed that with 0.6% Al<subscript>2</subscript>(SO<subscript>4</subscript>)<subscript>3</subscript> and 0.2% carrageenan as additives, the tensile index increased by 13.53% and precipitated calcium carbonate (PCC) retention increased by 57.06%. With 0.6% Al<subscript>2</subscript>(SO<subscript>4</subscript>)<subscript>3</subscript>, 0.2% carrageenan and 0.03% CPAM as additives, PCC retention increased by 121% while the tensile index did not fall compared to handsheets without additives, indicating that carrageenan could enhance the strength of handsheets and be used as an anionic dry strength agent. [ABSTRACT FROM AUTHOR]
- Subjects :
- CARRAGEENANS
RED algae
PECTINS
CALCIUM carbonate
ADDITIVES
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 12
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- PLoS ONE
- Publication Type :
- Academic Journal
- Accession number :
- 121167211
- Full Text :
- https://doi.org/10.1371/journal.pone.0171326