Improved thermal and mechanical properties of bacterial cellulose with the introduction of collagen

Improved thermal and mechanical properties of bacterial cellulose with the introduction of collagen Composite films comprised of bacterial cellulose (BC) and collagen (COL) were developed using BC hydrogel membranes as the base material and COL as the reinforcing material. Glutaraldehyde (GT) and 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC·HCl) were then used as cross-linking agents to prepare cross-linked BC/COL composite films by a wet chemical method. The effects of chemical cross-linking on the thermal and mechanical properties of composite films were investigated in detail. The COL molecules were adsorbed and deposited inside of 3D nanofiber networks of BC, coated on the surface of BC fibers. Chemical bonds formed between BC molecules, and between BC and COL molecules after cross-linking. Compared with BC, the obtained composite films showed 57.9 and 70.8% improvement in tensile strength after being cross-linked by GT and EDC·HCl, respectively. Cross-linking also enhanced the thermal stability of the specimens. Cellulose Springer Journals

Improved thermal and mechanical properties of bacterial cellulose with the introduction of collagen

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Springer Netherlands
Copyright © 2017 by Springer Science+Business Media B.V.
Chemistry; Bioorganic Chemistry; Physical Chemistry; Organic Chemistry; Polymer Sciences; Ceramics, Glass, Composites, Natural Materials; Sustainable Development
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