Preparation of Printable and Biodegradable Cellulose-Laponite Composite for Electronic Device Application

Saravanan Chandrasekaran, Maria Sotenko, Alvaro Cruz-Izquierdo, Zuhayr Rymansaib, Pejman Iravani, Kerry Kirwan, Janet L. Scott

Research output: Contribution to journalArticlepeer-review

9 Citations (SciVal)

Abstract

Printable and biodegradable printed circuit boards (PCBs) prepared by using cellulose as the continuous matrix, laponite as flame retardant filler with various weight ratio (0, 5, 10 and 20 wt% with respect to the α-cellulose quantity used to prepare the composites) and 1-ethyl-3-methylimidazolium acetate ([emim][OAc]) as the recoverable dissolution medium. Prepared cellulose-composites were subjected into physical, chemical, thermal, mechanical and biodegradation analyses to check the suitability of the cellulose-laponite composite for biodegradable electronic application. The addition of laponite into cellulose increased the degradation temperature, flame retardancy and decreased the mechanical properties of the cellulose-laponite composites. The surface nature of the cellulose composite converted from hydrophilic to hydrophobic (contact angle value increased in the range from 50° to 112°) by treating with relatively small amount of hydrophobizing agent (< 1 wt%). The conductive ink printing experiments on the composites explaining the role of hydrophobizing agent and laponite in the composites. Biodegradability of the cellulose was evaluated by enzyme treatments and derived the effect of laponite, hydrophobic agent and conductive ink.

Original languageEnglish
Pages (from-to)17-27
Number of pages11
JournalJournal of Polymers and the Environment
Volume29
Issue number1
Early online date9 Aug 2020
DOIs
Publication statusPublished - 1 Jan 2021

Funding

This project work was funded by Engineering and Physical Sciences Research Council (EPSRC) with project REFERENCE number: EP/K026380/1, United Kingdom. Dr. Janet L Scott has received this research grant. Acknowledgements Authors are gratefully acknowledged the Engineering and Physical Sciences Research Council (EPSRC), United Kingdom for project funding for project CLEVER. Authors thanks to all other project collaborator from Newcastle University, University of Oxford, University of Surrey and Loughborough University for their kind support during the CLEVER project discussion. SC and JLS thanks to University of Bath, Department of Chemical Engineering staff for their great support during the research activities in their lab. Authors are gratefully acknowledged the Engineering and Physical Sciences Research Council (EPSRC), United Kingdom for project funding for project CLEVER. Authors thanks to all other project collaborator from Newcastle University, University of Oxford, University of Surrey and Loughborough University for their kind support during the CLEVER project discussion. SC and JLS thanks to University of Bath, Department of Chemical Engineering staff for their great support during the research activities in their lab.

FundersFunder number
Newcastle University, University of Oxford
Engineering and Physical Sciences Research CouncilEP/K026380/1
Loughborough University
University of Surrey

Keywords

  • Biodegradable electronics
  • Hydrophobic agent
  • Ionic liquid
  • Laponite clay
  • α-Cellulose

ASJC Scopus subject areas

  • Environmental Engineering
  • Polymers and Plastics
  • Materials Chemistry

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