Novel Method for Recycle Epoxy Resin from Waste Printed Circuit Board

Abstract:

This research was aimed to study and develop a method for recycle epoxy resin from waste printed circuit board by hot solvent methods and DMSO/NaOH catalytic extraction method. It was found that the pressure tank system, sub set of hot solvent method, variable as following; pressure of 15 bar, temperature of 80 °C, reaction time for 6 h and ethyl acetate solvent presented maximum yield 50.46 %, while DMSO/NaOH catalytic system at 145 °C for 5 h was found maximum yield of 42.97 %. Recycled epoxy resin, the final product from hot solvent and DMSO/NaOH catalytic were showed similarly clear orange-yellow high viscosity. Comparatively, DMSO/NaOH system showed slightly darker color than that of hot solvent system. Functional group at 3000-2850, 1480-1540 and 1020-1040 cm^-1, characterized from Fourier transform infrared spectroscopy (FT-IR), indicated that the both product were alkane, aromatic, and phenyl-O-C group, respectively. It could be confirmed that the beneficial functional group of recycled epoxy resin was appeared as a new epoxy resin.

• Periodical: Advanced Materials Research (Volumes 931-932)
• Pages: 90-94
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.931-932.90
• Online since: May 2014
• Authors: Rapeephun Dangtungee*, Suchart Siengchin, Chaisiri Kitpaosong
• Keywords: Epoxy Resin (ER), Extraction, Recycling, Waste Printed Circuit Board (WPCB)

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