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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14687
Title: Development of completely bio-based epoxy networks derived from epoxidized linseed and castor oil cured with citric acid
Authors: Sahoo S.K.
Khandelwal V.
Manik G.
Published in: Polymers for Advanced Technologies
Abstract: Bio-based epoxy resins were synthesized from nonedible resources like linseed oil and castor oil. Both the oils were epoxidized through in situ method and characterized via Fourier transform infrared and 1H-NMR. These epoxidized oils were crosslinked with citric acid without using any catalyst and their properties compared with diglycidyl ether of bisphenol A-epoxy. The tensile strength and modulus of epoxidized linseed oil (ELO) were found to be more than those of epoxidized castor oil (ECO)-based network. However, elongation at break of ECO was significantly higher than that of both ELO and epoxy, which reveals its improved flexibility and toughened nature. Thermogravimetric analysis revealed that the thermal degradation of ELO-based network is similar to that of petro-based epoxy. Dynamic mechanical analysis revealed moderate storage modulus and broader loss tangent curve of bio-based epoxies confirming superior damping properties. Bioepoxies exhibit nearly similar contact angle as epoxy and display good chemical resistant. The preparation method does not involve the use of any toxic catalyst and more hazardous solvents, thus being eco-friendly. Copyright © 2018 John Wiley & Sons, Ltd.
Citation: Polymers for Advanced Technologies (2018), 29(7): 2080-2090
URI: https://doi.org/10.1002/pat.4316
http://repository.iitr.ac.in/handle/123456789/14687
Issue Date: 2018
Publisher: John Wiley and Sons Ltd
Keywords: citric acid
epoxidized oil
polymers
renewable resources
thermomechanical properties
ISSN: 10427147
Author Scopus IDs: 57203054461
57191897120
56595314900
Author Affiliations: Sahoo, S.K., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Paper Mill Road, Saharanpur, UP 247001, India
Khandelwal, V., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Paper Mill Road, Saharanpur, UP 247001, India
Manik, G., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Paper Mill Road, Saharanpur, UP 247001, India
Funding Details: On behalf of host Institute IIT Roorkee, the authors are grateful to SERB, Govt of India, for the financial support for the research work under National Post Doctoral Fellowship grant (file number: PDF/ 2015/000705).
Corresponding Author: Manik, G.; Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Paper Mill Road, India; email: gauravmanik3m@gmail.com
Appears in Collections:Journal Publications [PE]

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