ION-EXCHANGE RESIN FROM CROSSLINKED POLYETHYLENE

Authors

  • Camila Figueiredo de Castro FEI University
  • Luz Consuelo Gonzalez Alonso Panzarini FEI University
  • Maggiory Simões Ferrara FEI University
  • Marcela Pelegrino Marques FEI University
  • Maria Fernanda Ferraz de Almeida FEI University
  • Tarsilia Matos Machado FEI University
  • Yuli Silvino Capelle FEI University

DOI:

https://doi.org/10.18540/jcecvl3iss2pp071-081

Keywords:

Crosslinked polyethylene, PEX, Sulfonation, Ion-exchange resin

Abstract

Among thermoset polymers on the market, there is a crosslinked polyethylene (PEX), which is used for high voltage cable encapsulation. A large amount of waste is generate and disposed in this process, causing burden of production and environmental hazards. Thus, this project has proposed PEX chemical modification by sulfonation reactions, which consists in the insertion of SO3H groups in its structure. The Influences of the microwaves pre-irradiation, time of reaction and concentration of free SO3 in sulfuric acid were studied by FTIR-ATR, DRX and ICP. As a result, PEX-SO3H presented to be a strong cationic resin. The best results were that obtained in 30-minute reaction and sulfonic acid with 65% of free SO3. The microwave pre-irradiation was not effectiveness in this process. The PEX-SO3H obtained in this work shows at about 97% of efficiency in remove Ca2+ from water, which proves it can be used on water treatment. Although cost-benefit analysis was not satisfactory, this study expands new possibilities for thermoset recycling.

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Published

2017-03-19

How to Cite

de Castro, C. F., Panzarini, L. C. G. A., Ferrara, M. S., Marques, M. P., de Almeida, M. F. F., Machado, T. M., & Capelle, Y. S. (2017). ION-EXCHANGE RESIN FROM CROSSLINKED POLYETHYLENE. The Journal of Engineering and Exact Sciences, 3(2), 071–081. https://doi.org/10.18540/jcecvl3iss2pp071-081

Issue

Section

General Articles