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From Disposal to Technological Potential: Reuse of Polypropylene Waste from Industrial Containers as a Polystyrene Impact Modifier

Author

Listed:
  • Carlos Bruno Barreto Luna

    (Academic Unit of Materials Engineering, Federal University of Campina Grande, 58429-900 Campina Grande, Paraíba, Brazil)

  • Danilo Diniz Siqueira

    (Academic Unit of Materials Engineering, Federal University of Campina Grande, 58429-900 Campina Grande, Paraíba, Brazil)

  • Eduardo da Silva Barbosa Ferreira

    (Academic Unit of Materials Engineering, Federal University of Campina Grande, 58429-900 Campina Grande, Paraíba, Brazil)

  • Wallisson Alves da Silva

    (Academic Unit of Mechanical Engineering, Federal University of Campina Grande, 58429-900 Campina Grande, Paraíba, Brazil)

  • Jessika Andrade dos Santos Nogueira

    (Academic Unit of Materials Engineering, Federal University of Campina Grande, 58429-900 Campina Grande, Paraíba, Brazil)

  • Edcleide Maria Araújo

    (Academic Unit of Materials Engineering, Federal University of Campina Grande, 58429-900 Campina Grande, Paraíba, Brazil)

Abstract

The practice of recycling over the years has been increasingly encouraged, with the aim being the manufacturing of materials that contribute to sustainable development. In light of this, the present work evaluated the potential of mixtures of polystyrene (PS)/recycled copolymer polypropylene (PPr), using styrene-(ethylene/butylene)-styrene (SEBS) as a compatibilizing agent. Initially, the mixtures were prepared in a co-rotational twin-screw extruder, and, afterwards, the extruded granules were molded by injection. The properties of torque rheometry, impact strength, tensile properties, differential scanning calorimetry (DSC), heat deflection temperature (HDT), and scanning electron microscopy (SEM) were evaluated. The formulation PS/PPr/SEBS (70/20/10 %wt.) demonstrated an increase in viscosity, corroborating with an increase of 123% and 227% in the elongation at break and impact strength, respectively, compared to neat PS. Though the elastic modulus and tensile strength suffered losses, the reduction was not drastic. Furthermore, the addition of a semi-crystalline recycled material in the amorphous matrix (PS) contributed to an increase in thermomechanical strength, as seen in the HDT. The morphology revealed that SEBS is effective in making PS/PPr mixtures compatible because the dispersed phase is well adhered to the PS matrix and promotes greater morphological stability. Thus, it is possible to add value to discarded material and reduce the costs of the final product, which can reduce pollution.

Suggested Citation

  • Carlos Bruno Barreto Luna & Danilo Diniz Siqueira & Eduardo da Silva Barbosa Ferreira & Wallisson Alves da Silva & Jessika Andrade dos Santos Nogueira & Edcleide Maria Araújo, 2020. "From Disposal to Technological Potential: Reuse of Polypropylene Waste from Industrial Containers as a Polystyrene Impact Modifier," Sustainability, MDPI, vol. 12(13), pages 1-21, June.
  • Handle: RePEc:gam:jsusta:v:12:y:2020:i:13:p:5272-:d:377904
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    Citations

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    Cited by:

    1. Carlos Bruno Barreto Luna & Wallisson Alves da Silva & Edcleide Maria Araújo & Lara Júlia Medeiros Dantas da Silva & João Baptista da Costa Agra de Melo & Renate Maria Ramos Wellen, 2022. "From Waste to Potential Reuse: Mixtures of Polypropylene/Recycled Copolymer Polypropylene from Industrial Containers: Seeking Sustainable Materials," Sustainability, MDPI, vol. 14(11), pages 1-25, May.
    2. Eduardo da Silva Barbosa Ferreira & Carlos Bruno Barreto Luna & Danilo Diniz Siqueira & Edson Antonio dos Santos Filho & Edcleide Maria Araújo & Renate Maria Ramos Wellen, 2021. "Production of Eco-Sustainable Materials: Compatibilizing Action in Poly (Lactic Acid)/High-Density Biopolyethylene Bioblends," Sustainability, MDPI, vol. 13(21), pages 1-17, November.
    3. Dayanne Diniz de Souza Morais & Carlos Bruno Barreto Luna & Elieber Barros Bezerra & Danyelle Campos de França & Edcleide Maria Araújo & Emanuel Pereira do Nascimento & Amanda Dantas de Oliveira & Tom, 2022. "Performance of Poly(caprolactone) (PCL) as an Impact Modifier for Polystyrene (PS): Effect of Functionalized Compatibilizers with Maleic Anhydride and Glycidyl Methacrylate," Sustainability, MDPI, vol. 14(15), pages 1-20, July.
    4. Adriano Lima da Silva & Carlos Bruno Barreto Luna & Ana Flávia Félix de Farias & Suelen Alves Silva Lucena de Medeiros & Simoni Margareti Plentz Meneghetti & Alisson Mendes Rodrigues & Ana Cristina Fi, 2020. "From Disposal to Reuse: Production of Sustainable Fatty Acid Alkyl Esters Derived from Residual Oil Using a Biphasic Magnetic Catalyst," Sustainability, MDPI, vol. 12(23), pages 1-18, December.

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