Composite of low-density polyethylene and aluminum obtained from the recycling of postconsumer aseptic packaging

Lopes, Cristina Moniz Araújo; Felisberti, Maria I.

doi:10.1002/app.23406

Cited by 68 publications

(49 citation statements)

References 10 publications

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“…Re-pulping is a common method to separate cellulose fibers from polyethylene and aluminum layers in a pulper and recycled fibers are used to produce cardboards, corrugated paper, tissue paper, egg carton, and new paper products (Zuben 1996;Lopes and Felisberti 2006). Aluminum and LDPE parts in the system are recovered for generation of energy through incineration, or Al is recovered in pyrolysis ovens and LDPE is used to produce high-end plastic products (Lopes and Felisberti 2006;Hidalgo 2011). The main disadvantages of re-pulping TP waste packages are that plugging of screeners and defibrators by polyethylene result in frequent pauses in the process for cleaning up and considerable fiber losses as well.…”

Section: Introductionmentioning

confidence: 99%

Degradation Behavior and Accelerated Weathering of Composite Boards Produced from Waste Tetra Pak® Packaging Materials

et al. 2014

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Manufacturing panels from Tetra Pak ® (TP) packaging material might be an alternative to conventional wood-based panels. This study evaluated some chemical and physical properties as well as biological, weathering, and fire performance of panels with and without zinc borate (ZnB) by using shredded TP packaging cartons. Such packaging material, a worldwide well-known multilayer beverage packaging system, is composed of cellulose, low-density polyethylene (LDPE), and aluminum (Al). Panels produced from waste TP packaging material were also examined by FT-IR to understand the fungal deterioration and extent of degradation after accelerated weathering. Before FT-IR investigations, panel specimens were ground under nitrogen atmosphere due to nonuniformity of the composite material. The FT-IR results showed that fungal degradation occurred in the natural polymer of the panel matrix. Although the natural polymer is mostly composed of cellulose, there were also small amounts of polyoses and lignin. It was seen that especially polyose and lignin bands in FT-IR spectra were affected more than cellulose bands by fungal attack. No changes were observed by the fungi in the plastic component (LDPE) of the matrix; however, LDPE seemed more sensitive to weathering than cellulose. Incorporation of ZnB at loading level of 1% (w/w) did not contribute fire performance of the panels when compared to control panel specimens, while a loading level of 10% improved fire performance considering test parameters such as mass loss, ignition time and peak heat release rate.

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Section: Introductionmentioning

confidence: 99%

Degradation Behavior and Accelerated Weathering of Composite Boards Produced from Waste Tetra Pak® Packaging Materials

et al. 2014

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“…The paper part can be easily separated with water while the LDPE-EMAA-Al (PEAL) part must be processed together. Some authors (Lopes et al 2004(Lopes et al , 2006 studied the properties of directly reprocessed PEAL that is used as self-reinforced material as LDPE acts as a matrix, Al as the filler, and EMAA as coupling agent between the two. In another case (Lopes et al 2006), PEAL was used in conjugation with another waste stream, i.e., PET coming from beverage bottles.…”

Section: With the Formation Of Compositesmentioning

confidence: 99%

“…Some authors (Lopes et al 2004(Lopes et al , 2006 studied the properties of directly reprocessed PEAL that is used as self-reinforced material as LDPE acts as a matrix, Al as the filler, and EMAA as coupling agent between the two. In another case (Lopes et al 2006), PEAL was used in conjugation with another waste stream, i.e., PET coming from beverage bottles. The micromorphology of the composites put into evidence a good adhesion between the polymer and the aluminum, and the mechanical properties are consequently good.…”

Section: With the Formation Of Compositesmentioning

confidence: 99%

Recycling Polymer Blends

Mantia¹,

Scaffaro²

2014

Polymer Blends Handbook

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“…For the recycling purposes, cellulosic fibers are separated from the other components using hydro-pulping process. Until now, the aluminum-polyethylene layers have been thermally treated using incineration or pyrolysis (Korkmaz et al 2009;Lopes and Felisberti 2006).…”

Section: Introductionmentioning

confidence: 99%

Double aluminum recovery and its reuse in wastewater treatment

Dı́az

Varela-Guerrero

González‐Rivas

et al. 2014

Int. J. Environ. Sci. Technol.

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This work evaluates the use of aluminum contained in the aluminum-polyethylene films as anodic electrodes using the electrocoagulation technique to reduce the pollutant contents of industrial wastewater quickly and effectively. Thermal treatment at 500°C produces pure aluminum (according to TGA and SEM/EDS analysis) which is used to construct aluminum disks (applying 6 tons/cm 2 of pressure). Aluminum disks are used as cathodes and anodes in an electrochemical cell. The current density applied in the recovered Al electrodes was 12 mA cm -2 , and the maximum COD reduction of wastewater was 77 % at 25 min of treatment. The color and turbidity reductions are 87 and 90 %, respectively. The resulting sludge of wastewater treatment was thermally treated and a second aluminum recovery was reached; since the organic material present in the sludge was removed by the high temperature, the obtained aluminum was pure enough for its reuse. The use of aluminumpolyethylene films as electrodes in the electrocoagulation process contributes to the pollutant removal without the addition of chemical reagents or changing the pH, so it is both effective and environmentally friendly.

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Composite of low-density polyethylene and aluminum obtained from the recycling of postconsumer aseptic packaging

Cited by 68 publications

References 10 publications

Degradation Behavior and Accelerated Weathering of Composite Boards Produced from Waste Tetra Pak® Packaging Materials

Degradation Behavior and Accelerated Weathering of Composite Boards Produced from Waste Tetra Pak® Packaging Materials

Recycling Polymer Blends

Double aluminum recovery and its reuse in wastewater treatment

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