Evaluation and prediction of the effects of melt-processing conditions on the degree of mixing in alumina/poly(ethylene terephthalate) nanocomposites

2008 ◽  
Vol 109 (5) ◽  
pp. 2924-2934 ◽  
Author(s):  
Dongsik Kim ◽  
Jun S. Lee ◽  
Carol F. Barry ◽  
Joey L. Mead
Keyword(s):  
Ethylene Terephthalate ◽  
Melt Processing ◽  
Processing Conditions ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

scholarly journals Effects of melt-processing conditions on the quality of poly(ethylene terephthalate) montmorillonite clay nanocomposites

2002 ◽  
Vol 40 (23) ◽  
pp. 2661-2666 ◽  
Author(s):  
Cher H. Davis ◽  
Lon J. Mathias ◽  
Jeffrey W. Gilman ◽  
David A. Schiraldi ◽  
J. Randy Shields ◽  
...  
Keyword(s):  
Ethylene Terephthalate ◽  
Melt Processing ◽  
Montmorillonite Clay ◽  
Clay Nanocomposites ◽  
Processing Conditions ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Colour formation in poly(ethylene terephthalate) during melt processing

2006 ◽  
Vol 91 (4) ◽  
pp. 875-885 ◽  
Author(s):  
Calin Flaviu Ladasiu Ciolacu ◽  
Namita Roy Choudhury ◽  
Naba K. Dutta
Keyword(s):  
Ethylene Terephthalate ◽  
Melt Processing ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Crystallization Processes In Poly (Ethylene Terephthalate) / Polycarbonate Blends

1993 ◽  
Vol 321 ◽  
Author(s):  
Veronika E. Reinsch ◽  
Ludwig Rebenfeld
Keyword(s):  
Ethylene Terephthalate ◽  
Crystallization Rate ◽  
Melt Processing ◽  
Degree Of Crystallinity ◽  
Processing Temperature ◽  
Scanning Calorimetry ◽  
Processing Times ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Crystallization From The Melt

ABSTRACTBlends of poly (ethylene terephthalate), or PET, and polycarbonate (PC) over a range of compositions were studied in isothermal crystallizations from the melt using differential scanning calorimetry (DSC). Both crystallization rate and degree of crystallinity of PET depend on blend composition. The glass transition temperature, Tg, of PET and PC in blends and pure polymer were also measured by DSC. Elevation of the Tg of PET and depression of the Tg of PC are observed upon blending. In cooling scans, dynamic crystallization from the melt was observed. In PET/PC blends with high PC content, a novel dual-peak crystallization of PET was observed. The effects of thermal history on crystallization kinetics and degree of crystallinity were also determined in isothermal crystallization studies. For Melt processing times between 1 and 30 Min and for processing temperatures between 280 and 300 °C, Melt processing temperature was seen to have a stronger effect than processing time.

Degradation process of low molar mass poly(ethylene terephthalate)/organically modified montmorillonite nanocomposites

2016 ◽  
Vol 30 (4) ◽  
pp. 504-520 ◽  
Author(s):  
Juliana A de Lima ◽  
Lays B Fitaroni ◽  
Daniel VA Chiaretti ◽  
Manuela LQA Kaneko ◽  
Sandra A Cruz
Keyword(s):  
Ethylene Terephthalate ◽  
Molar Mass ◽  
Degradation Process ◽  
Melt Processing ◽  
Platelet Surface ◽  
Modified Montmorillonite ◽  
Organically Modified Montmorillonite ◽  
Poly Ethylene Terephthalate ◽  
Organically Modified ◽  
Poly Ethylene

The aim of this work is to investigate the degradation of low molar mass poly(ethylene terephthalate) (PET)/organically modified montmorillonite (OMMT) clay nanocomposites prepared by melt processing. The rheological behavior in combination with transmission electron microscopic images suggests an intercalation and therefore a percolating network. Furthermore, the results indicate that the increase of organoclay content caused a degradation of PET during processing of PET/OMMT nanocomposites, once it was observed the PET molar mass decreases. The effect mentioned could be attributed to an increase of Brønsted acidic sites on the platelet surface, which is produced by the Hofmann elimination reaction of ammonium, and also the presence of residual metal compounds on clay surface might possibly favored the polymer matrix degradation process.

Study of braiding commingled self-reinforced PET composites

2018 ◽  
Vol 32 (19) ◽  
pp. 1840086
Author(s):  
C. M. Wu ◽  
W. Y. Hsieh ◽  
S. T. Su ◽  
K. B. Cheng ◽  
K. C. Lee ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ethylene Terephthalate ◽  
Impact Behavior ◽  
Processing Conditions ◽  
Poly Ethylene Terephthalate ◽  
The Matrix ◽  
Poly Ethylene ◽  
Commingled Yarns

This work examines the flexural and impact behavior of self-reinforced poly(ethylene terephthalate) (srPET) composites, which were produced by film stacking from fabrics composed of braiding commingled yarns with high-tenacity PET (serving as the reinforcements) and copolymerized PET (mPET) (serving as the matrix). The influence of the hybrid yarns, fabric architectures, and processing conditions on the mechanical properties of srPETs were studied.

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