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Amylose/cellulose nanofiber composites for all-natural, fully biodegradable and flexible bioplastics
- Source :
- Xu, J, Sagnelli, D, Faisal, M, Perzon, A, Taresco, V, Mais, M, Giosafatto, C V L, Hebelstrup, K H, Ulvskov, P, Jørgensen, B, Chen, L, Howdle, S M & Blennow, A 2021, ' Amylose/cellulose nanofiber composites for all-natural, fully biodegradable and flexible bioplastics ', Carbohydrate Polymers, vol. 253, 117277 . https://doi.org/10.1016/j.carbpol.2020.117277, Xu, J, Sagnelli, D, Faisal, M, Perzon, A, Taresco, V, Mais, M, Giosafatto, C V L, Hebelstrup, K H, Ulvskov, P, Jorgensen, B, Chen, L, Howdle, S M & Blennow, A 2021, ' Amylose/cellulose nanofiber composites for all-natural, fully biodegradable and flexible bioplastics ', Carbohydrate Polymers, vol. 253, 117277 . https://doi.org/10.1016/j.carbpol.2020.117277
- Publication Year :
- 2021
-
Abstract
- Thermoplastic, polysaccharide-based plastics are environmentally friendly. However, typical shortcomings include lack of water resistance and poor mechanical properties. Nanocomposite manufacturing using pure, highly linear, polysaccharides can overcome such limitations. Cast nanocomposites were fabricated with plant engineered pure amylose (AM), produced in bulk quantity in transgenic barley grain, and cellulose nanofibers (CNF), extracted from agrowaste sugar beet pulp. Morphology, crystallinity, chemical heterogeneity, mechanics, dynamic mechanical, gas and water permeability, and contact angle of the films were investigated. Blending CNF into the AM matrix significantly enhanced the crystallinity, mechanical properties and permeability, whereas glycerol increased elongation at break, mainly by plasticizing the AM. There was significant phase separation between AM and CNF. Dynamic plasticizing and anti-plasticizing effects of both CNF and glycerol were demonstrated by NMR demonstrating high molecular order, but also non-crystalline, and evenly distributed 20 nm-sized glycerol domains. This study demonstrates a new lead in functional polysaccharide-based bioplastic systems.
- Subjects :
- Glycerol
Cellulose nanofiber
Thermoplastic
Materials science
Polymers and Plastics
Composite films
Flour
Nanofibers
Composite film
02 engineering and technology
Biodegradable Plastics
010402 general chemistry
01 natural sciences
Bioplastic
Permeability
Nanocomposites
Contact angle
chemistry.chemical_compound
Crystallinity
Amylose
Plasticizers
Tensile Strength
Materials Chemistry
Transition Temperature
Cellulose
Pliability
chemistry.chemical_classification
Nanocomposite
Plant Extracts
Organic Chemistry
Hordeum
Starch
021001 nanoscience & nanotechnology
0104 chemical sciences
chemistry
Chemical engineering
Cellulose nanofibers
Nanofiber
Beta vulgaris
0210 nano-technology
Crystallization
Bioplastics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Xu, J, Sagnelli, D, Faisal, M, Perzon, A, Taresco, V, Mais, M, Giosafatto, C V L, Hebelstrup, K H, Ulvskov, P, Jørgensen, B, Chen, L, Howdle, S M & Blennow, A 2021, ' Amylose/cellulose nanofiber composites for all-natural, fully biodegradable and flexible bioplastics ', Carbohydrate Polymers, vol. 253, 117277 . https://doi.org/10.1016/j.carbpol.2020.117277, Xu, J, Sagnelli, D, Faisal, M, Perzon, A, Taresco, V, Mais, M, Giosafatto, C V L, Hebelstrup, K H, Ulvskov, P, Jorgensen, B, Chen, L, Howdle, S M & Blennow, A 2021, ' Amylose/cellulose nanofiber composites for all-natural, fully biodegradable and flexible bioplastics ', Carbohydrate Polymers, vol. 253, 117277 . https://doi.org/10.1016/j.carbpol.2020.117277
- Accession number :
- edsair.doi.dedup.....22944df1bd43e0a71b798c38d28b5676