Assessing changes on poly(ethylene terephthalate) properties after recycling: Mechanical recycling in laboratory versus postconsumer recycled material

López, María del Mar Castro; Ares‐Pernas, Ana; Abad, M. J.; Latorre, A.; Vilariño, José Manuel López; González-Rodríguez, M. Victoria

doi:10.1016/j.matchemphys.2014.06.034

Cited by 99 publications

(56 citation statements)

References 28 publications

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“…Simulation of mechanical recycling by multiple processing and service life by accelerated thermal ageing to assess the effects of thermal and thermo-mechanical degradation has been previously performed for commodities [31], [34], [41], [52]- [57] such as polyethylene PE [53], polypropylene PP [53], polystyrene PS [54], [55], poly (vinyl chloride) (PVC) [57] or poly(ethylene terephthalate) PET [29], [34], [41], [56], [58], [59], among others. Mechanical recycling of biopolymers has been mainly reported for poly(hydroxybutirate) [60], poly(caprolactone) [61] and polylactide.…”

Section: Impact Of Mechanical Recycling On Pla Performancementioning

confidence: 99%

Mechanical recycling of polylactide, upgrading trends and combination of valorization techniques

Badía

Ribes‐Greus

2016

European Polymer Journal

123

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Section: Impact Of Mechanical Recycling On Pla Performancementioning

confidence: 99%

Mechanical recycling of polylactide, upgrading trends and combination of valorization techniques

Badía

Ribes‐Greus

2016

European Polymer Journal

123

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“…Therefore, recycling the PET is necessary. Two major techniques of recycling the PET include mechanical and chemical recycling [4,5]. Chemical recycling is costly, and therefore, physical recycling is used in recycling the PET extensively.…”

Section: Introductionmentioning

confidence: 99%

The investigation of alumina nanoparticles’ effects on the mechanical and thermal properties of HDPE/rPET/MAPE blends

Shahrajabian

Sadeghian

2019

Int Nano Lett

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In this research, the mechanical and thermal properties of nanocomposites containing alumina nanoparticles in the highdensity polyethylene/recycled polyethylene terephthalate/maleic anhydride polyethylene (HDPE/rPET/MAPE) matrix were investigated. For this purpose, tensile, flexural, impact energy, and differential scanning calorimetry (DSC) test were done. Here, 0, 1, 3, and 5 wt% alumina nanoparticles were added to the HDPE/rPET/MAPE using a co-rotating screw extruder. Morphological studies using scanning electron microscopy revealed that alumina nanoparticles within HDPE/rPET/MAPE matrix were well dispersed in low content of nanoparticles (up to 3 wt%). The results of mechanical tests showed that the presence of alumina nanoparticles improved tensile strength, elastic modulus, flexural strength, and impact energy. The maximum improvement was observed for the sample containing 3 wt% of alumina. DSC test revealed alumina nanoparticles in the content of 3 wt% increased the crystallinity degree of HDPE in the blend of HDPE/rPET/MAPE and caused to approach the melting points of HDPE and rPET.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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“…Thus, thermal degradation of PET occurs. As a consequence, reduced thermal and mechanical properties of the re-processed material were the main findings of these investigations (downcycling) [66][67][68][69][70][71][72][73][74][75][76][77][78]. Hence, a repeated thermal re-processing of PETwaste finally leads to a downcycling of the material.…”

Section: Thermo-mechanical Recycling 231 Re-melting Without Additivesmentioning

confidence: 94%

Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods

Geyer¹,

Lorenz²,

Kandelbauer³

2016

Express Polym. Lett.

206

120

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Abstract.Recycling of poly(ethylene terephthalate) (PET) is of crucial importance, since worldwide amounts of PETwaste increase rapidly due to its widespread applications. Hence, several methods have been developed, like energetic, material, thermo-mechanical and chemical recycling of PET. Most frequently, PET-waste is incinerated for energy recovery, used as additive in concrete composites or glycolysed to yield mixtures of monomers and undefined oligomers. While energetic and thermo-mechanical recycling entail downcycling of the material, chemical recycling requires considerable amounts of chemicals and demanding processing steps entailing toxic and ecological issues. This review provides a thorough survey of PET-recycling including energetic, material, thermo-mechanical and chemical methods. It focuses on chemical methods describing important reaction parameters and yields of obtained reaction products. While most methods yield monomers, only a few yield undefined low molecular weight oligomers for impaired applications (dispersants or plasticizers). Further, the present work presents an alternative chemical recycling method of PET in comparison to existing chemical methods.

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Assessing changes on poly(ethylene terephthalate) properties after recycling: Mechanical recycling in laboratory versus postconsumer recycled material

Cited by 99 publications

References 28 publications

Mechanical recycling of polylactide, upgrading trends and combination of valorization techniques

Mechanical recycling of polylactide, upgrading trends and combination of valorization techniques

The investigation of alumina nanoparticles’ effects on the mechanical and thermal properties of HDPE/rPET/MAPE blends

Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods

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