Journal
MOLECULES
Volume 25, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/molecules25122777
Keywords
natural rubber latex; chitosan; biocomposite; composite; bacteria
Funding
- faculty of engineering and agro-Industry, Maejo University, Thailand [MJU.2-62-051]
- Faculty of Engineering and Agro-Industry, Maejo University
- Center of Excellence in Materials Science and Technology, Chiang Mai University
- Chiang Mai University
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Generally, natural rubber/chitosan (NR/CT) biocomposites could be prepared by either mixing natural rubber latex (NRL) with CT acid solution or mixing dry NR with CT powder on mixing equipment. In the present work, a new mixing method has been proposed and properties of the obtained NR/CT biocomposites are investigated. CT particles were prepared to have a negative charge that could be dispersed in water by using a ball mill before mixing with NRL. The effects of CT loading varied from 0 to 8 phr on latex properties and physical properties of NR/CT biocomposite films were focused. The results showed that the viscosity of NRL increased with increasing CT loading. With increasing CT loading from 0 to 8 phr, 300% modulus of the NR/CT biocomposite film increased, whereas the opposite trend was found for elongation at break. Additionally, the presence of CT in the biocomposite resulted in an increased elastic modulus (E') in conjunction with enhanced antibacterial activity againstStaphylococcus aureus(S. aureus).
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