UV-functional flexible nanocomposite film with high lignin-cellulose nanocrystals content
Lignin-cellulose nanocrystals (L-CNCs) can be used as UV-functional fillers in polyvinyl alcohol (PVA) films for various applications. However, agglomeration of particles restricts their addition to 20 wt% in the polymer matrix due to the reduction in mechanical properties. In this work, a new metho...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423021312 |
| _version_ | 1797646677415297024 |
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| author | Yi Zhang Abu Naser Md Ahsanul Haque Maryam Naebe |
| author_facet | Yi Zhang Abu Naser Md Ahsanul Haque Maryam Naebe |
| author_sort | Yi Zhang |
| collection | DOAJ |
| description | Lignin-cellulose nanocrystals (L-CNCs) can be used as UV-functional fillers in polyvinyl alcohol (PVA) films for various applications. However, agglomeration of particles restricts their addition to 20 wt% in the polymer matrix due to the reduction in mechanical properties. In this work, a new method is proposed to produce a flexible UV-protective composite film with a superior amount of L-CNCs (>76 wt%), where cellulose nanocrystals (CNCs) were used as a co-reinforcing agent (20%) and amount of synthetic polymer was very low, i.e., 5% PVA. Hemp hurd, a naturally abundant waste resource, was used for both L-CNCs and CNCs extraction. The addition of CNCs showed a synergistic effect with L-CNCs, improving the UV-shielding ability of the film at 300–400 nm light wavelength. The resultant films were flexible, and showed similar elongation behaviour to PVA, yet had a high modulus. The initial results showed improvement in the shelf-life of raspberries with a high amount of L-CNCs film, which indicated the potential of the bio-based nanocomposite film as a sustainable alternative to commercial petroleum-based plastics. |
| first_indexed | 2024-03-11T15:06:06Z |
| format | Article |
| id | doaj.art-c7e5de48d8a245b79a7b3123c36e4e27 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:06:06Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-c7e5de48d8a245b79a7b3123c36e4e272023-10-30T06:04:15ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012659906000UV-functional flexible nanocomposite film with high lignin-cellulose nanocrystals contentYi Zhang0Abu Naser Md Ahsanul Haque1Maryam Naebe2Deakin University, Institute for Frontier Materials, 75 Pigdons Road, Geelong, Victoria, 3216, AustraliaDeakin University, Institute for Frontier Materials, 75 Pigdons Road, Geelong, Victoria, 3216, AustraliaCorresponding author.; Deakin University, Institute for Frontier Materials, 75 Pigdons Road, Geelong, Victoria, 3216, AustraliaLignin-cellulose nanocrystals (L-CNCs) can be used as UV-functional fillers in polyvinyl alcohol (PVA) films for various applications. However, agglomeration of particles restricts their addition to 20 wt% in the polymer matrix due to the reduction in mechanical properties. In this work, a new method is proposed to produce a flexible UV-protective composite film with a superior amount of L-CNCs (>76 wt%), where cellulose nanocrystals (CNCs) were used as a co-reinforcing agent (20%) and amount of synthetic polymer was very low, i.e., 5% PVA. Hemp hurd, a naturally abundant waste resource, was used for both L-CNCs and CNCs extraction. The addition of CNCs showed a synergistic effect with L-CNCs, improving the UV-shielding ability of the film at 300–400 nm light wavelength. The resultant films were flexible, and showed similar elongation behaviour to PVA, yet had a high modulus. The initial results showed improvement in the shelf-life of raspberries with a high amount of L-CNCs film, which indicated the potential of the bio-based nanocomposite film as a sustainable alternative to commercial petroleum-based plastics.http://www.sciencedirect.com/science/article/pii/S2238785423021312Lignin-containing cellulose nanocrystalsReinforcing agentUV-shieldingHemp hurdPolyvinyl alcoholSustainability |
| spellingShingle | Yi Zhang Abu Naser Md Ahsanul Haque Maryam Naebe UV-functional flexible nanocomposite film with high lignin-cellulose nanocrystals content Journal of Materials Research and Technology Lignin-containing cellulose nanocrystals Reinforcing agent UV-shielding Hemp hurd Polyvinyl alcohol Sustainability |
| title | UV-functional flexible nanocomposite film with high lignin-cellulose nanocrystals content |
| title_full | UV-functional flexible nanocomposite film with high lignin-cellulose nanocrystals content |
| title_fullStr | UV-functional flexible nanocomposite film with high lignin-cellulose nanocrystals content |
| title_full_unstemmed | UV-functional flexible nanocomposite film with high lignin-cellulose nanocrystals content |
| title_short | UV-functional flexible nanocomposite film with high lignin-cellulose nanocrystals content |
| title_sort | uv functional flexible nanocomposite film with high lignin cellulose nanocrystals content |
| topic | Lignin-containing cellulose nanocrystals Reinforcing agent UV-shielding Hemp hurd Polyvinyl alcohol Sustainability |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423021312 |
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