A dual analysis for recycled particulate composites: linking micro- and macro-mechanics

Ávila, Antônio F.; Rodrigues, Paulo César de Matos; Santos, Dagoberto Brandão; Faria, Ana Caetano

doi:10.1016/s1044-5803(03)00124-4

Cited by 24 publications

(8 citation statements)

References 10 publications

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“…Likewise, additives were developed to improve viscosity and impact strength of recycled PET, but the recyclate was excluded from food packaging in Europe [80]. Besides such additives, the addition of other polymers (e. g. polyethylene, polypropylene) or inorganic materials (clay minerals) has been applied for thermomechanical PET recycling to improve mechanical properties of the recyclate [81][82][83][84][85][86][87][88][89][90][91][92][93][94]. In addition to blending PET with a second polymer, the use of compatibilizers such as ethylene vinyl acetate, ethylenebutyl acrylate-glycidyl methacrylate copolymer, poly (styrene-ethylene/butylene-styrene) and epoxy-chain extenders has been applied to further improve mechanical properties [82][83][84][85][86].…”

Section: Re-melting With Additivesmentioning

confidence: 99%

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

Geyer¹,

Lorenz²,

Kandelbauer³

2016

Express Polym. Lett.

204

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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Section: Re-melting With Additivesmentioning

confidence: 99%

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

Geyer¹,

Lorenz²,

Kandelbauer³

2016

Express Polym. Lett.

204

120

View full text Add to dashboard Cite

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“…Among the materials most sought for use as a polymer matrix is PET, due to the large amount of waste of this type of material generated every day around the world. Which has originated its application in different industries such as automotive [8], electronics [9][10] and construction [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Manufacture and Mechanical Properties of PET-Based Composites Reinforced with Zinc Particles

Osorio-Ramos¹,

Refugio-García²,

Romero-Romo³

et al. 2017

AJPC

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This work analyzes the mechanical behavior of new composite materials with polymeric matrix, made from recycled polyethylene terephthalate (r-PET), reinforced with 10, 20, 30 and 40 wt% Zn metal particles, processed under isothermal sintering at constant temperature (256°C) and time (15 min) conditions. The r-PET/Zn composite material samples were obtained by a powder traditional technique, namely, ball-milling, uniaxial dye-pressing to obtain pre-forms followed by isothermal sintering. The observations through optical microscopy of the overall morphologies that resulted after sintering the samples studied, were compared against the r-PET-control sample without reinforcement, processed under the same conditions. From the results, it was found that the metal particles were distributed uniformly in the matrix; further, increasing amounts of metal particles tended to improve the mechanical behavior resulting in a stronger material, as was the case of the two materials with higher metal contents (30 and 40 wt% Zn).

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“…Chemical nature of PET permits a broad range of recycling options from mechanical recycling to chemical recycling 5. Avila6 reported dual analysis for recycled particulate composite based on recycled PET bottles and HDPE bottles. Thermomechanical recycling of plastic bottle was done and their use as composite material for engineering applications was studied.…”

Section: Introductionmentioning

confidence: 99%

Effect of flyash content, particle size of flyash, and type of silane coupling agents on the properties of recycled poly(ethylene terephthalate)/flyash composites

Joseph

Bambola

Sherhtukade

et al. 2010

J of Applied Polymer Sci

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Recent time's polymer waste disposal is a challenging task as the quantity of polymer waste is increasing day by day. Here particulate composites have been developed from recycled poly(ethylene terephthalate) filled with flyash. Flyash of different particle sizes have been used, and effect of particle size and flyash content on the mechanical properties of composites has been analyzed. Tensile and flexural properties of the composites are found to increase with increase in filler content up to 15% and after that decreases due to the agglomeration of flyash particles. SEM studies also showed good dispersion at lower loadings. The use of silane coupling agents was found to increase the flyash/WPET interaction there by increase in mechanical properties is observed.

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A dual analysis for recycled particulate composites: linking micro- and macro-mechanics

Cited by 24 publications

References 10 publications

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

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

Manufacture and Mechanical Properties of PET-Based Composites Reinforced with Zinc Particles

Effect of flyash content, particle size of flyash, and type of silane coupling agents on the properties of recycled poly(ethylene terephthalate)/flyash composites

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