scholarly journals Kinetics of the hydrolytic depolymerization of poly(ethylene terephthalate) under microwave irradiation

2011 ◽  
Vol 43 (10) ◽  
pp. 811-815 ◽  
Author(s):  
Shuzhen Zhang ◽  
Xiaofang Song ◽  
Dong Zhang ◽  
Yiguang Tian
Keyword(s):  
Microwave Irradiation ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Kinetics Of ◽  
Hydrolytic Depolymerization

Kinetics of glycolysis of poly(ethylene terephthalate) under microwave irradiation

2012 ◽  
Vol 127 (4) ◽  
pp. 2809-2815 ◽  
Author(s):  
Feifei Chen ◽  
Guanghui Wang ◽  
Chuan Shi ◽  
Yichen Zhang ◽  
Long Zhang ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Kinetics Of

Hydrolytic depolymerization of poly(ethylene terephthalate) under microwave irradiation

2004 ◽  
Vol 95 (3) ◽  
pp. 719-723 ◽  
Author(s):  
Lixin Liu ◽  
Dong Zhang ◽  
Lijia An ◽  
Huayang Zhang ◽  
Yiguang Tian
Keyword(s):  
Microwave Irradiation ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Hydrolytic Depolymerization

Energy Efficiency Analysis of PET Hydrolyzed by Different Ways of Microwave Irradiation

2014 ◽  
Vol 1078 ◽  
pp. 114-117
Author(s):  
Mi Mi Wang ◽  
Na Liu ◽  
Zhi De Liu ◽  
Dong Zhang
Keyword(s):  
Energy Efficiency ◽  
Microwave Irradiation ◽  
Ethylene Terephthalate ◽  
Energy Utilization ◽  
Poly Ethylene Terephthalate ◽  
Continuous Radiation ◽  
Poly Ethylene ◽  
Radiation Time ◽  
Hydrolytic Depolymerization ◽  
Total Reaction Time

The effect of microwave irradiation way on hydrolytic depolymerization of poly (ethylene terephthalate) (PET) was studied at 175°C, 180°C and 185°C. Based on this study, an additional experiment that the intermittent radiation time was one tenth of total reaction time (intermittent radiation (1/10)) was conducted to research the microwave energy utilization. The results showed that the energy efficiency increased as the temperature rose. And the energy utilization of intermittent radiation (1/10) was 16.7% higher than that of the continuous radiation at 175°C.

Ethylene Glycol and Glycerin as the Solvent for Alkaline Treatment of Poly(ethylene Terephthalate) Fabrics

1997 ◽  
Vol 67 (10) ◽  
pp. 760-766 ◽  
Author(s):  
M.-C. Yang ◽  
H.-Y. Tsai
Keyword(s):  
Ethylene Glycol ◽  
Degradation Rate ◽  
Ethylene Terephthalate ◽  
Treatment Time ◽  
Alkaline Treatment ◽  
Aqueous System ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Kinetics Of ◽  
Scanning Electron

Poly(ethylene terephthalate) fabrics are treated with sodium hydroxide using ethylene glycol or glycerin as the solvent. Compared with conventional aqueous alkaline hydrolysis, the degradation rate in ethylene glycol increases tenfold. The kinetics of the alkaline-ethylene glycol treatment show that the weight loss is linear with respect to time. The moisture regain rate and tensile properties of the treated fabrics are measured; other tests include scanning electron microscopy and dyeing properties. The results show that the properties of the treated fabrics do not depend significantly on the solvent; therefore, using ethylene glycol can greatly shorten the treatment time to achieve results similar to those with the conventional aqueous system.

Kinetics of Mass Transfer in the Melt Polycondensation of Poly(Ethylene Terephthalate)

1985 ◽  
Vol 22 (10) ◽  
pp. 1413-1427 ◽  
Author(s):  
Gerald Rafler ◽  
Gerhard Reinisch ◽  
Eckhard Bonatz ◽  
Heinz Versaumer ◽  
Herbert Gajewski ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Ethylene Terephthalate ◽  
Melt Polycondensation ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Kinetics Of
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