Files and links (2)
Chemical and Enzymatic Fiber Modification to Enhance the Mechanical Properties of CMC Composite Films1.51 MB
Published VersionCC BY V4.0, Open Access
Journal article
Chemical and Enzymatic Fiber Modification to Enhance the Mechanical Properties of CMC Composite Films
Polymers, Vol.14(19), pp.1-14
2022
PMID: 36236075
Abstract
Carboxymethyl cellulose (CMC) is a cellulose derivative that can be obtained from wood, bamboo, rattan, straw, and other cellulosic materials. CMC can be used to produce biofilms for many purposes, but the properties of these resulting films make them unsuitable for some applications. The effects of three kinds of plant fiber addition on CMC film properties was investigated using CMC derived from eucalyptus bark cellulose. Tensile strength (TS) and elongation at break (EB) of CMC or sodium alginate or glycerol composite films were 26.2 MPa and 7.35%, respectively. Tensile strength of CMC composite films substantially increased, reaching an optimum at 0.50 g of fiber. The enhancement due to industrial hemp hurd fiber on CMC composite films was more obvious. Pretreatment with hydrogen peroxide (H2O2) and glacial acetic acid (CH3COOH) produced films with a TS of 35.9 MPa and an EB of 1.61%. TS values with pectinase pretreated fiber films was 41.3 MPa and EB was 1.76%. TS of films pretreated with pectinase and hemicellulase was 45.2 MPa and EB was 4.18%. Chemical and enzymatic treatment both improved fiber crystallinity, but film tensile strength was improved to a greater extent by enzymatic treatment. Surface roughness and pyrolysis residue of the film increased after fiber addition, but Fourier transform infrared spectroscopy (FTIR), opacity, and water vapor transmission coefficients were largely unchanged. Adding fiber improved tensile strength of CMC or sodium alginate or glycerol composite films and broadened the application range of CMC composite films without adversely affecting film performance.
Details
- Title
- Chemical and Enzymatic Fiber Modification to Enhance the Mechanical Properties of CMC Composite Films
- Authors
- Xiaobao Li (Author) - Southwest Forestry UniversityZhengjie Tang (Author) - Southwest Forestry UniversityZhenbing Sun (Author) - Southwest Forestry UniversityJohn Simonsen (Author) - Oregon State Univ, Dept Wood Sci & Engn, Corvallis, OR 97331 USAZhinan Luo (Author) - Southwest Forestry UniversityXiaoping Li (Corresponding Author) - Southwest Forestry UniversityJeffery J. Morrell (Corresponding Author) - University of the Sunshine Coast, Queensland, National Centre for Timber Durability and Design Life
- Publication details
- Polymers, Vol.14(19), pp.1-14
- Publisher
- MDPI AG
- Date published
- 2022
- DOI
- 10.3390/polym14194127
- ISSN
- 2073-4360
- PMID
- 36236075
- Copyright note
- © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
- Organisation Unit
- University of the Sunshine Coast, Queensland; National Centre for Timber Durability and Design Life; Forest Research Institute
- Language
- English
- Record Identifier
- 99681396602621
- Output Type
- Journal article
Metrics
170 File views/ downloads
41 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Polymer Science