Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 43, Issue 11, Pages 2065-2074Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2012.06.013
Keywords
Fibres; Mechanical properties; Polymer-matrix composites (PMCs); Bacterial cellulose
Funding
- UK Engineering and Physical Science Research Council (EPSRC) [EP/F032005/1]
- Imperial College London Deputy Rector's award
- Challenging Engineering Programme of the EPSRC [EP/E007538/1]
- EPSRC [EP/F032005/1, EP/E007538/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F032005/1] Funding Source: researchfish
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Hairy bacterial cellulose coated sisal fibres were created using a simple slurry dipping process. Neat sisal fibres were coated with BC to create (i) a dense BC coating around the fibres or (ii) hairy fibres with BC oriented perpendicular to the fibre surface. These fibres were used to produce hierarchical sisal fibre reinforced BC polylactide (PLLA) nanocomposites. The specific surface area of the BC coated fibres increased when compared to neat sisal. Single fibre tensile tests revealed no significant difference in the tensile modulus and tensile strength of hairy fibres. However, when sisal fibres were coated with a dense BC layer, the mechanical fibre properties decreased. The tensile, flexural and visco-elastic properties of the hierarchical PLLA nanocomposites reinforced by both types of BC coated sisal fibres showed significant improvements over neat PLLA. (c) 2012 Elsevier Ltd. All rights reserved.
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