Affiliation:
1. Department of Chemistry Bodoland University Kokrajhar Assam 783370 India
2. Drugs and Narcotics Division, Directorate of Forensic Science Guwahati Assam 781019 India
3. Department of Herbal Science & Technology ADP College Nagaon Assam 782002 India
4. Department of Physics ADP College Nagaon Assam 782002 India
5. Department of Chemistry ICT Mumbai ‐ IOC Bhubaneswar Campus Bhubaneswar Odisha 751013 India
6. Department of Applied Sciences Tezpur University Tezpur Assam 784028 India
Abstract
AbstractChitosan (CS) is a polycation found in nature that exhibits many good properties. Kaolin (KAO) clay is a natural inorganic filler and is being used in medicine, ceramic, food additives, etc. Therefore, the mixing of two such biomaterials, a natural polycation (CS) and natural filler (KAO clay) may lead to a biocomposite, chitosan/kaolin (CS/KAO) clay, with many interesting properties. In this study, the composites of CS and KAO clay are prepared by mixing the solution of CS (in dilute acetic acid) with KAO clay at various weight ratios. FT‐IR, UV/Vis, X‐Ray diffraction, SEM, UTM, TGA, and DSC analyses are used to investigate these biocomposites thoroughly. Agar well diffusion method has been used to determine the antibacterial activities of different concentrations of the CS‐ KAO clay against gram ‐positive (Bacillus subtilis) and gram‐ negative (Escherichia coli) bacteria. The biocomposites exhibited antibacterial activities against tested microrganisms. In addition, swelling tests of the biocomposites are also carried out. The CS/KAO clay biocomposite films show better tensile strength than CS film. It is observed that dispersed KAO clay improves the thermal stability and enhances the hardness of the matrix systematically with the increase of its loading.
Subject
Materials Chemistry,Organic Chemistry,Polymers and Plastics,Physical and Theoretical Chemistry,Condensed Matter Physics
Cited by
1 articles.
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