scholarly journals In situ polymerization and characterization of graphite nanoplatelet/poly(ethylene terephthalate) nanocomposites for construction of melt-spun fibers

RSC Advances ◽  
2017 ◽  
Vol 7 (53) ◽  
pp. 33477-33485 ◽  
Author(s):  
Qiushu Xu ◽  
Chaosheng Wang ◽  
Biao Wang ◽  
Ye Chen ◽  
Huaping Wang
Keyword(s):  
Ethylene Terephthalate ◽  
In Situ Polymerization ◽  
Antistatic Property ◽  
Poly Ethylene Terephthalate ◽  
Melt Spun ◽  
Poly Ethylene ◽  
Spun Fibers

This work described a set of graphite nanoplatelet/poly(ethylene terephthalate) (GnP/PET) nanocomposites synthesized via an in situ polymerization for construction of melt-spun fibers with enhanced antistatic property.

Synthesis and Characterization of Poly(Ethylene Terephthalate) /Al2O3 Nanocomposites

2013 ◽  
Vol 717 ◽  
pp. 54-57 ◽  
Author(s):  
Sang Kyoo Lim ◽  
Won Mi Choi ◽  
Hyun Jung Choi ◽  
Seong Hui Hong ◽  
Sung Ho Hwang ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Ethylene Terephthalate ◽  
In Situ Polymerization ◽  
Synthesis And Characterization ◽  
Melting Temperatures ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Lower Melting Temperature

Poly (ethylene terephthalate)(PET)/Al2O3nanocomposites via in situ polymerization were studied. The nanoparticle loading was varied from 0.3 to 1 wt.%. From the DSC results, no significant differences were recorded for melting temperatures. However, simple added PET/Al2O3nanocomposites slightly changed to the lower melting temperature. Morphology of the nanocomposites has been examined by SEM. From the SEM results revealed that dispersed Al2O3nanoparticles in the EG (ethylene glycol) during the polymerization can be well dispersed in PET matrix.

Processing Characteristics of Recycled Poly(Ethylene Terephthalate) as Melt Spun Fibers

1997 ◽  
Vol 67 (12) ◽  
pp. 891-896 ◽  
Author(s):  
Daw-Ming Fann ◽  
Steve K. Huang ◽  
Jiunn-Yih Lee
Keyword(s):  
Tensile Strength ◽  
Ethylene Terephthalate ◽  
Mechanical Measurements ◽  
Poly Ethylene Terephthalate ◽  
Melt Spun ◽  
Grade Material ◽  
Poly Ethylene ◽  
Spun Fibers

Recycled poly (ethylene terephthalate) (r-pet) used in blends with a fiber grade material (f-pet) is investigated. As-spun fibers of r-pet, f-pet, and r/f-pet blends are made at winding speeds ranging from 1000 to 4000 m/min (mpm), with subsequent drawing in the range of 1.6 to 4.0×. Spinning and drawing behaviors of the fibers are analyzed using orientation (birefringence), boil-off shrinkage, calorimetric (dsc), and mechanical measurements. The fully oriented yarns from the r-pet show a tensile strength of 70% of the fiber grade, with 3.2 g/d (r-pet) to 4.6 g/d (f-pet), which still meets and surpasses minimum industrial requirements. The dsc study of these materials indicates that the decreased crystallinity of the r-pet may be the main cause for the decreased tensile strength of the product.

scholarly journals The effect of attapulgite on crystallization behavior of Poly(ethylene terephthalate) (PET)/Attapulgite (AT) nano composites

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Fan Xufen ◽  
Chen Dajun
Keyword(s):  
Ethylene Terephthalate ◽  
In Situ Polymerization ◽  
Nucleating Agent ◽  
Avrami Equation ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Transmission Electron ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

AbstractPoly (ethylene terephthalate) (PET)/Attapulgite (AT) nanocomposites were prepared via in-situ polymerization. According to the observation of transmission electron microscopy (TEM), attapulgite is well dispersed in the PET matrix in a nanometer scale. The influence of attapulgite content on the nonisothermal crystallization kinetics was studied using a classical Avrami equation with Jeziorny method. The crystalline structures of the pure PET and PET/AT nanocomposites with different amount of AT (0.2%, 0.5%, 1%, 2%) were characterized by differential scanning calorimetry (DSC) and X-ray diffraction (XRD) methods. It was found that the crystallization temperature for PET/AT nanocomposites with 0.2% and 0.5% content of AT were higher than pure PET and the rate of crystallization of all PET/AT nanocomposite samples increased significantly which indicated that attapulgite could be used as an effective nucleating agent in PET. However, with the addition of AT, smaller crystalline size, more crystalline defects and lower degree of crystallization was demonstrated.

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