2016
DOI: 10.1002/pen.24451
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Rapid structural changes that take place during constrained annealing of biaxially stretched pet films

Abstract: The aim of this work is to study the structural changes that take place during the heat setting of simultaneously and sequentially biaxially stretched polyethylene terephthalate films. The rate of structural rearrangement, as detected by real‐time birefringence and off‐line Raman spectroscopy, DSC thermal analysis and X‐rays, was found to be dependent on the state of the orientation and crystallinity attained by the samples during the stretching step. This suggested that the annealing behavior can be categoriz… Show more

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Cited by 6 publications
(2 citation statements)
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“…This helps improve the mechanical properties of polymer products. [23][24][25][26] At the same time, this self-reinforcement method can significantly reduce the production cost of products compared with the method of adding fillers, fibers, and steel strips.…”
Section: Introductionmentioning
confidence: 99%
“…This helps improve the mechanical properties of polymer products. [23][24][25][26] At the same time, this self-reinforcement method can significantly reduce the production cost of products compared with the method of adding fillers, fibers, and steel strips.…”
Section: Introductionmentioning
confidence: 99%
“…Poly(ethylene terephthalate), or PET, is a thermoplastic polyester resin produced commercially from ethylene glycol (EG) and either dimethyl terephthalate (DMT) or terephthalic acid (TPA). Such resins may be classified as low-viscosity or high-viscosity resins according to the intrinsic viscosity value [1][2]. PET is used extensively in the manufacture of synthetic fibers which compose the largest segment of the synthetic fiber industry [3][4][5].…”
Section: Introductionmentioning
confidence: 99%