標題: DEPOLYMERIZATION OF POLY(ETHYLENE-TEREPHTHALATE) RESIN UNDER PRESSURE
作者: CHEN, JY
OU, CF
HU, YC
LIN, CC
應用化學系
Department of Applied Chemistry
公開日期: 20-三月-1991
摘要: The process of depolymerization of PET resin by EG glycolysis under pressure is investigated. The kinetics of this pressurized depolymerization of PET resin is discussed. It was found that the rate of deploymerization is dependent of temperature, pressure, and concentration ratio of EG to PET. The rate of depolymerization is proportional to the square of EG concentration and faster than that under atmospheric pressure. Glycolyzed products under pressure consist of the PET monomer, BHET, and oligomers, mostly dimer and trimer. An equilibrium between BHET and oligomers is attained quickly soon after the deploymerization step is completed in the case of a higher ratio of EG/PET used. In the case of lower ratio of EG/PET, the final product now consists of molecular weight of oligomers rather than monomer, dimer, and trimer.
URI: http://dx.doi.org/10.1002/app.1991.070420603
http://hdl.handle.net/11536/3832
ISSN: 0021-8995
DOI: 10.1002/app.1991.070420603
期刊: JOURNAL OF APPLIED POLYMER SCIENCE
Volume: 42
Issue: 6
起始頁: 1501
結束頁: 1507
顯示於類別:期刊論文


文件中的檔案:

  1. A1991EZ41000003.pdf