Microwave Depolymerization of DGEBA/EDA Epoxy Resin in Ionic Liquid

Jian Qiu Zhang; Tao Tian; Li Zhang; Jin Yang Chen; Cheng Bing Yu

doi:10.4028/www.scientific.net/AMM.692.245

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 692Microwave Depolymerization of DGEBA/EDA Epoxy...

Microwave Depolymerization of DGEBA/EDA Epoxy Resin in Ionic Liquid

Abstract:

Depolymerization of DGEBA/EDA Epoxy Resin was carried out in a microwave reactor, heated for definitized time. Experimental results showed that the products obtained are phenol, bisphenol A, isopropyl phenol. Liquid products were analyzed by high performance liquid chromatography (HPLC) and the standard curve was established by the pure samples and used it to quantify. The results show that the maximum yields of phenol, bisphenol A, isopropyl phenol are 81%,50%,12%.The residual solid after depolymerization were analyzed by infrared spectroscopy and confirmed that it was residual epoxy resin solid. Depolymerization ratio and yields of main products increase with the increase of reaction temperature and time. The most effective medium is BmimCl and the depolymerization ratio can reach 92%, and the test by infrared spectroscopy shows that BmimCl is stable , It can be used for many times.

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Proceedings of 2014 International Conference on Material Engineering and Environment Science

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Periodical:

Applied Mechanics and Materials (Volume 692)

Pages:

245-250

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.692.245

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Online since:

November 2014

Authors:

Jian Qiu Zhang, Tao Tian, Li Zhang, Jin Yang Chen*, Cheng Bing Yu

Keywords:

Bisphenol A, Depolymerization, Epoxy Resin, Ionic Liquid (IL), Kinetic, P-Isopropylphenol

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