Effect of different degradation types on properties of plastic waste obtained from espresso coffee capsules

Bomfim, Anne Shayene Campos de; Maciel, Maísa Milanez Ávila Dias; Voorwald, Herman Jacobus Cornelis; Benini, Kelly Cristina Coelho de Carvalho; Oliveira, Daniel Magalhães de; Cioffi, Maria Odila Hilário

doi:10.1016/j.wasman.2018.11.006

Cited by 26 publications

(16 citation statements)

References 26 publications

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“…Currently, Plastics Industry represents a profitable, competitive, and broad market, with products ranging from toothbrushes to building pipes, from fruit boxes to car interiors. [ 1 ] However, plastics have the lowest recovery rates when it comes to waste. Thus, plastic waste has been of great socio‐environmental concern due to the alarming waste production.…”

Section: Introductionmentioning

confidence: 99%

“…Only 550,000 tons were recycled after consumption, making the Brazilian country the fourth‐largest producer of plastic waste. [ 1,2 ] Hence, places like the Rio de Janeiro area in Brazil have prohibited the free distribution of plastic bags in supermarkets, replacing these with paid biodegradable bags. As stated by Xu et al, [ 3 ] the global amount of plastic bags used per year reaches the astonishing 1 trillion mark.…”

Section: Introductionmentioning

confidence: 99%

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Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

Martins

Zanini

Botelho

et al. 2021

Polymer Engineering & Sci

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Oil spill accidents in marine environments and the lack of disposal of post‐consumer plastic are environmental problems worldwide. This study presents a sustainable alternative for both issues through envelopes filled with microplastics (MPs) from recycled bags for the sorption of spilled crude oil. Through particle size analysis by three different sieves (4, 9, and 20 mesh), different MP sizes were characterized by scanning electron microscope (SEM), Brunauer–Emmett–Teller (BET), density, contact angle (CA), and Fourier‐transform infrared spectroscopy (FTIR). According to their sizes, the MPs were distributed in envelopes and submitted to crude oil sorption capacity and efficiency evaluation. Three MP particle sizes were obtained (from the largest to the smallest, according to the sieve mesh, MP4, MP9, and MP20). SEM images of samples exhibited irregular and porous surfaces, and MP4 had the smallest pore size (8.6 μm). BET showed that MP4 had the highest surface area (0.074 m2/g). The CA > 90° exposed that all samples were hydrophobic. FTIR spectrum demonstrated that the samples from the recycled bags were made of high density polyethylene (HDPE). The MP4 envelopes also had the best crude oil sorption results in capacity and efficiency (1.73 g/g and 68%, respectively), being a promising recycled sorbent in crude oil spillage applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

Martins

Zanini

Botelho

et al. 2021

Polymer Engineering & Sci

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“…The ambition for a reverse supply chain in coffee capsule manufacturing presents real challenges to achieving circular practice de Bomfim et al 36 Recovery of plastic materials that compose coffee capsules and the mechanical recycling of this material to use it as a matrix of a bio-composites reinforced with natural fibres…”

Section: Laboratory Experimentsmentioning

confidence: 99%

Coffee capsule impacts and recovery techniques: A literature review

2021

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The recently developing coffee market has been characterized by profound changes caused by new solutions and technologies for coffee preparation. The polylaminate materials that compose most popular capsules make them a type of waste that is difficult to manage and recycle. This paper analyses the scientific references that deal with studying and improving the management processes of waste coffee capsules, as well as the studies that have analysed their environmental impact. Through a bibliographic review, some encouraging aspects emerged in the recovery of materials that can be adequately recycled (plastics and metals), as well as their possible use for the production of biogas and energy recovery. The need to manually separate the components that make up the capsule still represents one of the main challenges. Many efforts are still needed to favour the environmental sustainability of this waste from a strategic, technological and consumer empowerment point of view.

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“…Even though plastics have demonstrated to be a versatile, durable and low‐cost material, the consequences of their consumption are the production of a lot of waste 2 . Until now 8300 million metric tons of plastics have been produced in the world since its beginnings 3 . For all the plastics produced, only 9% are recycled, 12% incinerated, and 79% are accumulated in landfills or the natural environment 1,3 .…”

Section: Introductionmentioning

confidence: 99%

“…Until now 8300 million metric tons of plastics have been produced in the world since its beginnings 3 . For all the plastics produced, only 9% are recycled, 12% incinerated, and 79% are accumulated in landfills or the natural environment 1,3 . Moreover, the generation of plastics waste represents on average about 13% of the solid waste composition produced in urban areas 4–6 .…”

Section: Introductionmentioning

confidence: 99%

Ionizing radiation as adjuvant for the abiotic degradation of plastic bags containing pro‐oxidant additives

Aldás

Valle

Aguilar

et al. 2020

J of Applied Polymer Sci

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The effects of ionizing radiation in promoting the abiotic degradation mechanisms in oxo‐degradable plastic bags were studied. Commercial plastic bags, containing pro‐oxidant additives, were irradiated with gamma photons and accelerated electrons at doses of 5 and 10 kGy. Then, the irradiated bags were exposed to abiotic degradation, either thermal aging or accelerated weathering. Mechanical and microstructural characterizations were performed to follow the degradation. Plastic bags containing additives did not show important changes in their structure after ionizing radiation and thermal aging. Meanwhile, accelerated weathering combined with gamma photons irradiation produce fragmentation of all the samples after 120 h of degradation. It was concluded that the combination of ionizing radiation and accelerated weathering allows the breakage of polyethylene chains trough accelerating the activation of pro‐oxidant additive. Additionally, polyethylene molecules are degraded with pre‐treatment of ionizing radiation even if they do not contain the pro‐oxidant additive.

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Effect of different degradation types on properties of plastic waste obtained from espresso coffee capsules

Cited by 26 publications

References 26 publications

Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

Envelopes with microplastics generated from recycled plastic bags for crude oil sorption

Coffee capsule impacts and recovery techniques: A literature review

Ionizing radiation as adjuvant for the abiotic degradation of plastic bags containing pro‐oxidant additives

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