Reactive-extrusion route for the closed-loop recycling of poly(ethylene terephthalate)

2007 ◽  
Vol 104 (3) ◽  
pp. 1671-1678 ◽  
Author(s):  
P. Kiliaris ◽  
C. D. Papaspyrides ◽  
R. Pfaendner
Keyword(s):  
Ethylene Terephthalate ◽  
Closed Loop ◽  
Reactive Extrusion ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Molecular characterization and rheological properties of modified poly(ethylene terephthalate) obtained by reactive extrusion

2001 ◽  
Vol 41 (8) ◽  
pp. 1299-1309 ◽  
Author(s):  
Quoc Tuan Nguyen ◽  
Sonia Japon ◽  
André Luciani ◽  
Yves Leterrier ◽  
Jan-Anders E. Månson
Keyword(s):  
Rheological Properties ◽  
Molecular Characterization ◽  
Ethylene Terephthalate ◽  
Reactive Extrusion ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

scholarly journals Rheological properties of high melt strength poly(ethylene terephthalate) formed by reactive extrusion

2006 ◽  
Vol 100 (5) ◽  
pp. 3646-3652 ◽  
Author(s):  
J. S. Forsythe ◽  
K. Cheah ◽  
D. R. Nisbet ◽  
R. K. Gupta ◽  
A. Lau ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Ethylene Terephthalate ◽  
Reactive Extrusion ◽  
Melt Strength ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

scholarly journals Study of nanoclay blends based on poly(ethylene terephthalate)/poly(ethylene naphthalene 2,6-dicarboxylate) prepared by reactive extrusion

2014 ◽  
Vol 34 (5) ◽  
pp. 431-439 ◽  
Author(s):  
Foued Zouai ◽  
Said Bouhelal ◽  
M. Esperanza Cagiao ◽  
Fatma Zohra Benabid ◽  
Djafer Benachour ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Tensile Modulus ◽  
Reactive Extrusion ◽  
Organic Peroxide ◽  
Scanning Calorimetry ◽  
Tetramethylthiuram Disulfide ◽  
X Ray Scattering ◽  
Poly Ethylene Terephthalate ◽  
One Step ◽  
Poly Ethylene

Abstract The success of processing compatible blends, based on poly(ethylene terephthalate) (PET)/poly(ethylene naphthalene 2,6-dicarboxylate) (PEN)/clay nanocomposites in one step by reactive melt extrusion is described. Untreated clay was first purified and functionalized “in situ” with a compound based on an organic peroxide/sulfur mixture and (tetramethylthiuram disulfide) as the activator for sulfur. The PET and PEN materials were first separately mixed in the molten state with functionalized clay. The PET/4 wt% clay and PEN/7.5 wt% clay compositions showed total exfoliation. These compositions, denoted nPET and nPEN, respectively, were used to prepare new nPET/nPEN nanoblends in the same mixing batch. The nPET/nPEN nanoblends were compared to neat PET/PEN blends. The blends and nanocomposites were characterized using various techniques. Microstructural and nanostructural properties were investigated. Fourier transform infrared spectroscopy (FTIR) results showed that the exfoliation of tetrahedral clay nanolayers is complete and the octahedral structure totally disappears. It was shown that total exfoliation, confirmed by wide angle X-ray scattering (WAXS) measurements, contributes to the enhancement of impact strength and tensile modulus. In addition, WAXS results indicated that all samples are amorphous. The differential scanning calorimetry (DSC) study indicated the occurrence of one glass transition temperature Tg, one crystallization temperature Tc and one melting temperature Tm for every composition. This was evidence that both PET/PEN and nPET/nPEN blends are compatible in the entire range of compositions. In addition, the nPET/nPEN blends showed lower Tc and higher Tm values than the corresponding neat PET/PEN blends. In conclusion, the results obtained indicate that nPET/nPEN blends are different from the pure ones in nanostructure and physical behavior.

Reactive extrusion of recycled poly(ethylene terephthalate) with polycarbonate by addition of chain extender

2007 ◽  
Vol 104 (4) ◽  
pp. 2602-2607 ◽  
Author(s):  
Xianwen Tang ◽  
Weihong Guo ◽  
Guorong Yin ◽  
Binyao Li ◽  
Chifei Wu
Keyword(s):  
Ethylene Terephthalate ◽  
Reactive Extrusion ◽  
Chain Extender ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene
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