Assessment of Greenhouse Gas (GHG) Emissions of Polylactic Acid (PLA)/Starch and Polyethylene Terephthalate (PET) Trays

2012 ◽  
Vol 518-523 ◽  
pp. 1468-1474 ◽  
Author(s):  
Unchalee Suwanmanee ◽  
Thanawadee Leejarkpai ◽  
Thumrongrut Mungcharoen
Keyword(s):  
Greenhouse Gas ◽  
Heat Recovery ◽  
Ethylene Terephthalate ◽  
Waste Treatment ◽  
Functional Unit ◽  
Ghg Emissions ◽  
Cassava Starch ◽  
Poly Ethylene Terephthalate ◽  
Co2 Equivalent ◽  
Poly Ethylene

This study aims to assess greenhouse gas (GHG) emissions of Poy(lactic acid) (PLA) with cassava starch blend (PLA/starch) and Poly(ethylene terephthalate) (PET) trays from cradle to grave. The various waste treatment scenarios were considered. The functional unit is specified as 10,000 units of 8 x 10 x 2.5 cm. of PLA/starch and PET trays which weigh 597.6 and 582.7.5 kilograms, respectively. The results from cradle to production gate were found that GHG emissions of PLA/starch has 51.38% lower than that of PET. This is because PET has higher weight of the trays. The resin production stage of PET tray has the highest of greenhouse GHG emissions. The results from cradle to grave show that the highest total GHG emissions are observed from PLA/starch or PET trays with 90% of landfill and 10% of incineration. The lowest GHG emissions from disposal PLA/starch and PET trays are from landfill with biogas recovery and incineration with heat recovery. This can be reduced GHG emissions by 3.11103 and 1.28103 kg CO2 equivalent.

Preparation of HTLcs from Magnesium Desulfurization Residues and their Catalytic Performance in Degradation of Waste Polyester

2016 ◽  
Vol 852 ◽  
pp. 1463-1467
Author(s):  
Ting Xu ◽  
Dan Zhao ◽  
Yan Mao Dong ◽  
Liao Yu Wei ◽  
Guang Ai Zhu ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Waste Treatment ◽  
Catalytic Performance ◽  
Flue Gas Desulfurization ◽  
Scanning Calorimetry ◽  
Poly Ethylene Terephthalate ◽  
Solid Waste Treatment ◽  
Infrared Spectrometer ◽  
Poly Ethylene ◽  
And Performance

To recycle the solid wastes, the hydrotalcite-like compounds (HTLcs) were prepared from the magnesia flue gas desulfurization residues (MFGDR). The HTLcs as prepared and the products from degradation of Poly (ethylene terephthalate) (PET) were characterized by thermogravimetric analysis (TG) , x-ray powder diffraction (XRD) , fourier transform infrared spectrometer (FTIR) and differential scanning calorimetry (DSC) methods. Effects of calcining temperature and alkaline of solution on the structure and performance of HTLcs were studied. The main product of alcoholysis of PET was bis-hydroxyethyl terephthalate (BHET). The catalyst shows a potential application in solid waste treatment and recycle.

Nanostructured ZnO and CuI Thin Films on Poly(Ethylene Terephthalate) Tapes for UV-Shielding Applications

2020 ◽  
Vol 12 (3) ◽  
pp. 03007-1-03007-8
Author(s):  
N. P. Klochko ◽  
◽  
K. S. Klepikova ◽  
D. O. Zhadan ◽  
V. R. Kopach ◽  
...  
Keyword(s):  
Thin Films ◽  
Ethylene Terephthalate ◽  
Uv Shielding ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Dynamic rheology of branched poly(ethylene terephthalate)

2000 ◽  
Vol 49 (2) ◽  
pp. 203-208 ◽  
Author(s):  
Ruxandra F Rosu ◽  
Robert A Shanks ◽  
Sati N Bhattacharya
Keyword(s):  
Ethylene Terephthalate ◽  
Dynamic Rheology ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene
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