SONG Hongwei, XU Zhongbin, ZHENG Suxia. Microwave assisted recycle of waste PET and preparation of polyester used in powder coating[J]. CIESC Journal, 2008, (8): 2141-2148.
SONG Hongwei, XU Zhongbin, ZHENG Suxia. Microwave assisted recycle of waste PET and preparation of polyester used in powder coating[J]. CIESC Journal, 2008, (8): 2141-2148.DOI:
The waste poly(ethylene terephthalate) (PET) could be glycolized with neopentyl glycol (NPG) in several minutes with microwave assistance.The glycolized product
an oligomer
was esterified with a certain amount of hexanedioic acid and 1
2
4
5-benzene-tetracarboxylic acid dianhydride.The esterified products could be used as the polyester for polyester-epoxy powder coatings.The influences of the main factors
such as the amount of NPG
the power of microwave
reaction time
on the glycolysis and esterification were studied and optimized.The effects of 1
2
4
5-benzenetetracarboxylic acid dianhydride introduced during the esterification process were also investigated.