Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites

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, me...

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Main Authors: Sirilak Phomrak, Muenduen Phisalaphong
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/10/3583
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author Sirilak Phomrak
Muenduen Phisalaphong
author_facet Sirilak Phomrak
Muenduen Phisalaphong
author_sort Sirilak Phomrak
collection DOAJ
description 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 <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> and did not show cytotoxic effects on the HEK293 and HaCaT cell lines.
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spelling doaj.art-651d5faa3eca4d219615eacdd80d7e5f2023-11-20T01:20:56ZengMDPI AGApplied Sciences2076-34172020-05-011010358310.3390/app10103583Lactic Acid Modified Natural Rubber–Bacterial Cellulose CompositesSirilak Phomrak0Muenduen Phisalaphong1Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, ThailandDepartment of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, ThailandGreen 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 <i>Escherichia coli</i> and <i>Staphylococcus aureus</i> and did not show cytotoxic effects on the HEK293 and HaCaT cell lines.https://www.mdpi.com/2076-3417/10/10/3583bacterial cellulosenatural rubbercompositesbiomaterialsbiopolymers
spellingShingle Sirilak Phomrak
Muenduen Phisalaphong
Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites
Applied Sciences
bacterial cellulose
natural rubber
composites
biomaterials
biopolymers
title Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites
title_full Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites
title_fullStr Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites
title_full_unstemmed Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites
title_short Lactic Acid Modified Natural Rubber–Bacterial Cellulose Composites
title_sort lactic acid modified natural rubber bacterial cellulose composites
topic bacterial cellulose
natural rubber
composites
biomaterials
biopolymers
url https://www.mdpi.com/2076-3417/10/10/3583
work_keys_str_mv AT sirilakphomrak lacticacidmodifiednaturalrubberbacterialcellulosecomposites
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