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The kinetics of non-isothermal crystallization of uniaxially oriented poly(ethylene terephthalate) fibers modified by poly(ethylene glycol)(PET-co-PEG) was investigated by using a DSC heating scanning method and analyzed by using a new non-isothermal equation. Two crystallization peaks appeared for PET and PET-co-PEG fibers. The kinetics parameters, such as the Avrami exponent, the activation energies...
The effects of drawing conditions on the orientation and crystallinity of poly(ethylene terephthalate) (PET) fibers were investigated by using optical birefringence, sonic velocity, and wide-angle X-ray diffraction measurements, respectively. The preferred condition for preparation of uniaxially oriented amorphous PET fibers was suggested. The crystallization behavior of oriented PET fibers under...
The differential scanning calorimeter heating curves of uniaxially oriented poly(ethylene terephthalate) (PET) fibers with three peaks were analyzed by using a newly proposed equation. The diffusion-controlled crystallization theory is suitable for describing cold crystallization of uniaxially oriented PET fibers. A crystallization model was proposed based on the kinetic parameters obtained. The model...
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