Characterisation of solution cast cellulose nanofibre – reinforced poly(lactic acid)
Cellulose nanofibres, 20 nm in diameter and 300 nm long, were prepared by acid hydrolysis of flax yarns. Composite films containing 2.5 and 5.0 wt% flax cellulose (FC) fibres were prepared by solution casting of mixtures of poly(lactic acid) (PLA) solution and cellulose nanofibre suspension in chlor...
| Format: | Article |
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| Language: | English |
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Budapest University of Technology
2010-01-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0001207&mi=cd |
| _version_ | 1818057429376565248 |
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| collection | DOAJ |
| description | Cellulose nanofibres, 20 nm in diameter and 300 nm long, were prepared by acid hydrolysis of flax yarns. Composite films containing 2.5 and 5.0 wt% flax cellulose (FC) fibres were prepared by solution casting of mixtures of poly(lactic acid) (PLA) solution and cellulose nanofibre suspension in chloroform. The resulting composite films and solution cast pure PLA film, with thickness of around 160 m, showed good transparency. For composites with 2.5 and 5.0 wt% FC, the tensile strength increased by 25 and 59% and tensile modulus by 42 and 47%, respectively, compared to pure PLA film. The composite film with 2.5 wt% FC combined high strength and ductility with tensile strength of 24.3 MPa and 70% elongation at break. Flax cellulose appeared to facilitate nucleation and subsequent crystallisation of PLA more effectively in the amorphous composites than in the crystalline composites. |
| first_indexed | 2024-12-10T12:44:36Z |
| format | Article |
| id | doaj.art-8b896518655a449b85131af4ce351741 |
| institution | Directory Open Access Journal |
| issn | 1788-618X |
| language | English |
| last_indexed | 2024-12-10T12:44:36Z |
| publishDate | 2010-01-01 |
| publisher | Budapest University of Technology |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj.art-8b896518655a449b85131af4ce3517412022-12-22T01:48:27ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2010-01-0141263110.3144/expresspolymlett.2010.5Characterisation of solution cast cellulose nanofibre – reinforced poly(lactic acid)Cellulose nanofibres, 20 nm in diameter and 300 nm long, were prepared by acid hydrolysis of flax yarns. Composite films containing 2.5 and 5.0 wt% flax cellulose (FC) fibres were prepared by solution casting of mixtures of poly(lactic acid) (PLA) solution and cellulose nanofibre suspension in chloroform. The resulting composite films and solution cast pure PLA film, with thickness of around 160 m, showed good transparency. For composites with 2.5 and 5.0 wt% FC, the tensile strength increased by 25 and 59% and tensile modulus by 42 and 47%, respectively, compared to pure PLA film. The composite film with 2.5 wt% FC combined high strength and ductility with tensile strength of 24.3 MPa and 70% elongation at break. Flax cellulose appeared to facilitate nucleation and subsequent crystallisation of PLA more effectively in the amorphous composites than in the crystalline composites.http://www.expresspolymlett.com/letolt.php?file=EPL-0001207&mi=cdPolymer compositespoly(lactic acid) (PLA)nanocellulosebiopolymercesp4 |
| spellingShingle | Characterisation of solution cast cellulose nanofibre – reinforced poly(lactic acid) eXPRESS Polymer Letters Polymer composites poly(lactic acid) (PLA) nanocellulose biopolymer cesp4 |
| title | Characterisation of solution cast cellulose nanofibre – reinforced poly(lactic acid) |
| title_full | Characterisation of solution cast cellulose nanofibre – reinforced poly(lactic acid) |
| title_fullStr | Characterisation of solution cast cellulose nanofibre – reinforced poly(lactic acid) |
| title_full_unstemmed | Characterisation of solution cast cellulose nanofibre – reinforced poly(lactic acid) |
| title_short | Characterisation of solution cast cellulose nanofibre – reinforced poly(lactic acid) |
| title_sort | characterisation of solution cast cellulose nanofibre 8211 reinforced poly lactic acid |
| topic | Polymer composites poly(lactic acid) (PLA) nanocellulose biopolymer cesp4 |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0001207&mi=cd |