Polyester fiber production using virgin and recycled PET

Tapia-Picazo, Juan Carlos; Luna-Bárcenas, J. Gabriel; García-Chávez, A.; González‐Núñez, Rubén; Bonilla-Petriciolet, Adrián; Álvarez-Castillo, A.

doi:10.1007/s12221-014-0547-7

Cited by 37 publications

(24 citation statements)

References 22 publications

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“…As expected, the stabilized fibers of PL‐5PET and PL‐20PET have increased strain‐to‐failures compared with the stabilized fibers of PL‐0PET (3.57 and 2.84% compared to 2.38%). The increased strain‐to‐failure is contributed to the presence of PET backbone in the stabilized fiber . The slightly lower strain‐to‐failure of the stabilized fibers of PL‐20PET in comparison to the stabilized fibers of PL‐5PET can be associated with the fiber inconsistency of PL‐20PET as shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

“…The increased strain-to-failure is contributed to the presence of PET backbone in the stabilized fiber. 24 The slightly lower strain-to-failure of the stabilized fibers of PL-20PET in comparison to the stabilized fibers of PL-5PET can be associated with the fiber inconsistency of PL-20PET as shown in Figure 9. During the stabilization, the PL-5PET fibers could be further stretched under tension, which is contributed to its highest strain to failure.…”

Section: Articlementioning

confidence: 96%

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Thermal treatment of pyrolytic lignin and polyethylene terephthalate toward carbon fiber production

Bai

2019

J of Applied Polymer Sci

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In this work, pyrolytic lignin (PL) was thermally co‐treated with polyethylene terephthalate (PET) to produce carbon fiber precursor. The produced PL‐PET precursors were thoroughly characterized and analyzed, and then being processed into carbon fiber. It was found that a novel precursor, rather than their physical blending, was formed by the thermal co‐treatment, indicating there were strong interactions between PL and PET. The novel PL‐PET precursors had enhanced thermal properties and rheological characteristics, therefore are more suitable for processing into better carbon fibers based on melt‐spinning method. In this study, the precursor fibers derived from the co‐treatment of PL and 5% PET were also stretched under tension during stabilization step to reduce the fiber diameter and improve molecular orientation. The resulting carbon fibers with an average diameter of 12.6 μm had the tensile strength of up to 1220 MPa. This work demonstrated that PET could be used to improve the processability and quality of lignin‐based carbon fiber when it is chemically bonded with lignin‐based precursor. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48843.

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Section: Resultsmentioning

confidence: 99%

Section: Articlementioning

confidence: 96%

Thermal treatment of pyrolytic lignin and polyethylene terephthalate toward carbon fiber production

Bai

2019

J of Applied Polymer Sci

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“…processability) [35][36][37][38] as well as its mechanical properties in solid state (i.e. tensile strength) [13,39,40]. It is well-established that the thermal oxidation of PET during its extrusion is the main source of its molecular reformations [1,2,4,12,34].…”

Section: Accepted Manuscript -4-mentioning

confidence: 99%

Enhanced PET processing with organophosphorus additive: Flame retardant products with added-value for recycling

Gooneie

Simonetti

Salmeia

et al. 2019

Polymer Degradation and Stability

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At elevated temperatures, polyethylene terephthalate (PET) is known to undergo a cascade of interconnected chemical reactions, in particular oxidative crosslinking, which can lead to severe limitations in processability, product properties, and recyclability. To control such undesired reactions, a newly synthesized phosphorus-based additive with promising flame retardant properties (T. Stelzig et al. Dopo-Based Hybrid Flame Retardants. EP2921498 (A1), 2015), by the chemical name 6-((1-oxido-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octan-4yl)methoxy)dibenzo[c,e][1,2]oxaphosphinine 6-oxide (DOPO-PEPA, or simply DP), was added to PET in different concentrations. To assess the miscibility of DP and PET at the nanoscale, a multiscale simulation scheme was developed by combining molecular dynamics and dissipative particle dynamics. DP showed a prominent inter-chain lubrication effect in PET in extrusion experiments. To replicate the heating cycles during repeated recycling, the thermal stability of PET melts was assessed on extended timescales using rheological measurements. Time-resolved frequency sweep experiments were conducted with or without the novel DP additive, under air and nitrogen atmospheres. By combining various chemical analysis techniques, a chemical stabilizing mechanism could be proposed that describes how the DP molecule intervenes with the-1-This document is the accepted manuscript version of the following article:

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“…It also contributes in terms of raw material resources. The recycled polyester fibers obtained by mechanical means have high strength and elongation values, while at the same time providing low cost (1)(2)(3)(4).…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effects of Weight Variation and Patterning on Strength of Nonwoven Products

Değirmenci¹,

Çoruh²

2018

Tekstil Ve Konfeksiyon

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In this study, the dry and wet strengths of standard/recycled and plain/patterned nonwoven products with weight variation are studied. In the first part of the study, the machine and cross direction strengths of the standard and recycled products of the same unit weight were tested in dry and wet conditions. And the efffect of weight variotion on the strength is investigated. In the second part of the study, the strengths of the plain and patterned products in the machine direction and crosswise direction of the same unit weight were tested in dry and wet state. The effect of patterning on the strength is tried to find out. Study's mathmatical and statistical results show that in terms of sustainability, it has been concluded that viscose/polyester blended recycled nonwoven produc ts can be used instead of standard fabric by increasing the unit weight. Also, patterning does not cause strength loses.

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Polyester fiber production using virgin and recycled PET

Cited by 37 publications

References 22 publications

Thermal treatment of pyrolytic lignin and polyethylene terephthalate toward carbon fiber production

Thermal treatment of pyrolytic lignin and polyethylene terephthalate toward carbon fiber production

Enhanced PET processing with organophosphorus additive: Flame retardant products with added-value for recycling

Investigating the Effects of Weight Variation and Patterning on Strength of Nonwoven Products

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