Synthesis and applications of unsaturated polyester resins based on PET waste

Jinkyung Kim, Dookyo Jeong, Changho Son, Younghee Lee, Eunyong Kim, Il Moon

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Three types of unsaturated polyester resins were synthesized from the glycolysis of polyethylene terephthalate (PET) plastic waste, considering environment, cost and properties for their applications. These synthesized unsaturated polyester resins could be used for various construction processes and materials such as no dig pipelining (NDR-1), pultrusion (PLR-1) and polymer concrete (PCR-1). PET was taken from common soft-drink bottles, and ethylene glycol (EG), diethylene glycol (DEG) and MPdiol glycol mixtures were used for the depolymerization at molar ratios. The glycolyzed PET 1 st products (oligomers) were reacted with maleic anhydride, phthalic anhydride and dicyclopentadiene (DCPD) (especially for polymer concrete) to form unsaturated polyester resins with mixed styrene. The lab scale (1-5 kg) and pilot plant scale-up tests (200 kg) were experimented to evaluate the processing characteristics, viscosity, acid number and curing behaviors. The main properties such as hardness, flexural strength, tensile strength, heat distortion temperature, elongation, and chemical resistance were determined based on the various uses of the three resins. Furthermore, the applicability and the properties of these developed resins were verified through many real application tests.

Original languageEnglish
Pages (from-to)1076-1083
Number of pages8
JournalKorean Journal of Chemical Engineering
Volume24
Issue number6
DOIs
Publication statusPublished - 2007 Nov 1

Fingerprint

Polyethylene Terephthalates
Polyester resins
Polyethylene terephthalates
dicyclopentadiene
Glycols
Polymers
Resins
Maleic Anhydrides
Concretes
Pultrusion
Depolymerization
Forms (concrete)
Styrene
Chemical resistance
Ethylene Glycol
Bottles
Maleic anhydride
Ethylene glycol
Pilot plants
Oligomers

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Kim, Jinkyung ; Jeong, Dookyo ; Son, Changho ; Lee, Younghee ; Kim, Eunyong ; Moon, Il. / Synthesis and applications of unsaturated polyester resins based on PET waste. In: Korean Journal of Chemical Engineering. 2007 ; Vol. 24, No. 6. pp. 1076-1083.
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Synthesis and applications of unsaturated polyester resins based on PET waste. / Kim, Jinkyung; Jeong, Dookyo; Son, Changho; Lee, Younghee; Kim, Eunyong; Moon, Il.

In: Korean Journal of Chemical Engineering, Vol. 24, No. 6, 01.11.2007, p. 1076-1083.

Research output: Contribution to journalArticle

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