Nanosilica incorporated coarse wool-epoxy hybrid biocomposites with improved physico-mechanical properties

Frontiers in Materials

Materials

Poornima Vijayan P¹  Asha Bhanu A. V.¹  Jesiya Susan George²  Sabu Thomas²  Namitha Nandanan Nedumpillil²  Seiko Jose³  Tinu Ann Jacob⁴ 

[1] Department of Chemistry, Sree Narayana College for Women, Kollam, Kerala, India;School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, India;School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, India;Textile Manufacture and Textile Chemistry Division, ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, India;School of Energy Materials, Mahatma Gandhi University, Kottayam, Kerala, India;

关键词: biodegradation;    wool;    epoxy composite;    nano silica;    natural fibre composite;   

DOI  :  10.3389/fmats.2023.1140602

 received in 2023-01-09, accepted in 2023-01-26,  发布年份 2023

来源: Frontiers

【 摘 要 】

In the reported work, the wool fabric was coated with epoxy resin by hand layup method to fabricate the wool-epoxy composites. Hydrophobic nanosilica was used as a filler to improve their mechanical characteristics. The physico-mechanical properties of the composites were analyzed using various analytical techniques. The surface morphology was examined with the aid of Scanning Electron Microscope. The biodegradability of the developed composites was determined by soil burial test. The presence of nanosilica in the composite was confirmed by Fourier Transform Infrared Spectroscopy (FTIR). According to the findings, up to 0.5% nanosilica content significantly increases the tensile and impact strength of the wool-epoxy composites. The contact angle measurement showed a slight enhancement in the hydrophobic properties of the composites due to the dispersion of hydrophobic nanosilica particles. The presence of nanosilica slightly reduced the water diffusivity in wool-epoxy-nanosilica composites when compared to wool-epoxy composites. The SEM images detected nanosilica inside the composites. After soil burial test, all the composites showed a weight reduction below 1.0%.

【 授权许可】

Unknown   
Copyright © 2023 Jose, George, Jacob, Vijayan P, Bhanu A. V., Nedumpillil and Thomas.