Mechanism of cold drawing in melt-spun poly(ethylene terephthalate) fibers

1987 ◽  
Vol 34 (3) ◽  
pp. 1285-1300 ◽  
Author(s):  
M. J. Napolitano ◽  
A. Moet
Keyword(s):  
Ethylene Terephthalate ◽  
Cold Drawing ◽  
Poly Ethylene Terephthalate ◽  
Melt Spun ◽  
Poly Ethylene

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.

Crystallization of poly(ethylene terephthalate) filaments by infusion of ethanol upon cold drawing

Polymer ◽  
2015 ◽  
Vol 59 ◽  
pp. 26-34 ◽  
Author(s):  
Rina Khanum ◽  
Wataru Takarada ◽  
Arun Aneja ◽  
Takeshi Kikutani
Keyword(s):  
Ethylene Terephthalate ◽  
Cold Drawing ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene
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