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A pulp foam with highly improved physical strength, fire-resistance and antibiosis by incorporation of chitosan and CPAM.
- Source :
-
Carbohydrate polymers [Carbohydr Polym] 2022 Feb 15; Vol. 278, pp. 118963. Date of Electronic Publication: 2021 Dec 02. - Publication Year :
- 2022
-
Abstract
- Bio-inspired borate cross-linked pulp foam (PF) with high porosity and low density can be widely used in many fields. However, PF is flammable, and lack of mechanical strength and antibacterial activity. To solve these issues, an ultra-strong PF was prepared by incorporation of chitosan and cationic polyacrylamide (CPAM). Results showed that the obtained PF exhibited highly improved mechanical properties (the compressive strength (485 kPa at a strain of 50%) was over 6 times higher compared with the borate cross-linked PF without chitosan and CPAM, and it was even higher than most of the reported cellulose-based porous materials). Also, the prepared PF has good performance on fire-retardance (hard to light), thermal insulation, antibiosis and sound absorption, due to the synergistic actions of borate, chitosan and CPAM. Additionally, spent liquor in preparing PF could be fully recycled, and thus this sustainable approach has potential for large-scale production of high-performance PF.<br /> (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Subjects :
- Acrylic Resins chemistry
Anti-Bacterial Agents chemistry
Carbohydrate Conformation
Cations chemistry
Cations pharmacology
Chitosan chemistry
Compressive Strength
Microbial Sensitivity Tests
Particle Size
Acrylic Resins pharmacology
Anti-Bacterial Agents pharmacology
Antibiosis drug effects
Bacillus subtilis drug effects
Chitosan pharmacology
Escherichia coli drug effects
Subjects
Details
- Language :
- English
- ISSN :
- 1879-1344
- Volume :
- 278
- Database :
- MEDLINE
- Journal :
- Carbohydrate polymers
- Publication Type :
- Academic Journal
- Accession number :
- 34973778
- Full Text :
- https://doi.org/10.1016/j.carbpol.2021.118963