Location: Bioproducts ResearchTitle: Bio-based thin films of cellulose nanofibrils and magnetite for application in green electronics
|ARANTES, ANA CAROLINA - Universidade Federal De Lavras|
|SILVA, LUIZ EDUARDO - Universidade Federal De Lavras|
|Wood, Delilah - De|
|ALMEIDA, CRISLAINE DAS G - Universidade Federal De Lavras|
|TONOLI, GUSTAVO HENRIQU - Universidade Federal De Lavras|
|OLIVEIRA, JULIANO ELVIS - Universidade Federal De Lavras|
|SILVA, JOAQUIM PAULO - Universidade Federal De Lavras|
|Orts, William - Bill|
|BIANCHIA, MARIA LUCIA - Universidade Federal De Lavras|
Submitted to: Carbohydrate Polymers
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/23/2018
Publication Date: 11/26/2018
Citation: Arantes, A., Silva, L., Wood, D.F., Almeida, C., Tonoli, G., Oliveira, J., Silva, J., Williams, T.G., Orts, W.J., Bianchia, M. 2018. Bio-based thin films of cellulose nanofibrils and magnetite for application in green electronics. Carbohydrate Polymers. 207(1):100-107. https://doi.org/10.1016/j.carbpol.2018.11.081.
Interpretive Summary: The electronics industry has grown exponentially over the past 50 years due to the advancement of telecommunications and information technology. Thus, electronic waste (e-waste) has become a global concern in terms of pollution and environmental impact. E-waste contains large amounts of toxic materials that are not biodegradable. Potential novel “green electronics” were developed using renewable, non-toxic bio-based hybrids. Bio-based thin films were successfully produced from cellulose nanofibrils, chitosan, magnetite and glycerol. The films have potential use as insulators in capacitors in the manufacture of green electronics thus, their use would reduce the generation of toxic and nonrenewable e-waste.
Technical Abstract: The objective of this work was to prepare bio-based thin films and evaluate the effect of composition (cellulose nanofibrils, chitosan, magnetite and glycerol) on charge storage, flexibility, wettability and barrier properties of the films. The films were prepared by solution casting and characterized chemically and physically using Fourier transform infrared spectroscopy, thermogravimetry, mechanical and water vapor transmission analysis, surface free energy, wettability and electrical measurements. Results showed that the plasticizer (glycerol) increased flexibility and wettability and decreased the barrier properties of the films. The calculated dielectric constant for the composite films was based on measurements of capacitance and showed a positive influence with the additions of magnetite and glycerol resulting in an increased charge storage capacity. The bio-based thin films have potential to be used as insulators in capacitors on the production of green electronics thus, reducing toxic and nonrenewable e-waste generation.