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Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites

Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
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Appl. Sci. 2020, 10(10), 3583; https://doi.org/10.3390/app10103583
Received: 1 April 2020 / Revised: 9 May 2020 / Accepted: 15 May 2020 / Published: 22 May 2020
(This article belongs to the Special Issue Bacterial Cellulose Biomaterials)
Green composite films of natural rubber/bacterial cellulose composites (NRBC) were prepared via a latex aqueous microdispersion process. The acid modified natural rubber/bacterial cellulose composites (ANRBC), in which lactic acid was used, showed significant improvement in mechanical properties, melting temperature, and high resistance to polar and non-polar solvents. The ANRBC films exhibited improved water resistance over that of BC and NRBC films, and possessed a higher resistance to non-polar solvents, such as toluene, than NR and NRBC films. The modification had a slight effect on the degradability of the composite films in soil. The NRBC and ANRBC films were biodegradable; the NRBC80 and ANRBC80 films were degraded completely within 3 months in soil. NRBC and ANRBC showed no antibacterial activity against Escherichia coli and Staphylococcus aureus and did not show cytotoxic effects on the HEK293 and HaCaT cell lines. View Full-Text
Keywords: bacterial cellulose; natural rubber; composites; biomaterials; biopolymers bacterial cellulose; natural rubber; composites; biomaterials; biopolymers
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Phomrak, S.; Phisalaphong, M. Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites. Appl. Sci. 2020, 10, 3583.

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