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Study on Properties of Regenerated Fluorinated Polyurethane Rigid Foam Prepared by Degrading Waste Polyurethane

Author

Listed:
  • Da-Sheng Zhang

    (School of Material Science and Engineering of Qiqihar University, Qiqihar 161006, China)

  • Xiao-Hua Gu

    (School of Material Science and Engineering of Qiqihar University, Qiqihar 161006, China
    School of Energy and Building Environment of Guilin University of Aerospace Technology, Guilin 541004, China
    State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China)

  • Si-Wen Liu

    (College of Innovative Material & Energy, Hubei University, Wuhan 430062, China)

  • Yan Liu

    (School of Energy and Building Environment of Guilin University of Aerospace Technology, Guilin 541004, China)

  • Qing-Yun Zhou

    (School of Material Science and Engineering of Qiqihar University, Qiqihar 161006, China)

  • Shang-Wen Zhu

    (School of Energy and Building Environment of Guilin University of Aerospace Technology, Guilin 541004, China)

  • Yan-Wei Zhu

    (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China)

Abstract

Polyurethane (PU) has become one of the most widely used materials in the industrial field due to its excellent performance and wide range of applications. The increasing consumption of polyurethane materials has resulted in significant polyurethane waste. We can recycle waste polyurethane to obtain recycled polyurethane, but to make the recycled polyurethane meet different performance requirements in terms of utility and cost and enable the recycled polyether polyol to be further applied to high-end applications, it is necessary to improve the use value of recycled polyether polyol. In this paper, self-made Fluorodiol was added to the degradation process of waste polyurethane to obtain fluorinated regenerated polyether polyol. Recycled fluorinated polyurethane with excellent performance was prepared using fluorine-containing recycled polyether polyol. The regenerated fluorinated polyether polyols were characterized by infrared spectroscopy, viscosity, hydroxyl value, and GPC molecular weight distribution. The density, apparent morphology, water absorption, mechanical strength, thermal conductivity, and thermal stability of RFPU rigid foams with different fluorine contents were studied by scanning electron microscopy. The results show that when the addition of Fluorodiol was 8% of the mass of waste polyurethane, the density was 41.2 kg/m 3 , the immersion loss rate was 2.125%, the compressive strength was 0.315 Mpa, and the thermal conductivity was 0.0227 W/m·K. The RFPU prepared by Fluorodiol has low surface energy, good compressive strength, hydrolysis resistance, and is expected to be widely used in special insulation materials. Thus, the sustainable recycling of polyurethane is achieved.

Suggested Citation

  • Da-Sheng Zhang & Xiao-Hua Gu & Si-Wen Liu & Yan Liu & Qing-Yun Zhou & Shang-Wen Zhu & Yan-Wei Zhu, 2022. "Study on Properties of Regenerated Fluorinated Polyurethane Rigid Foam Prepared by Degrading Waste Polyurethane," Sustainability, MDPI, vol. 14(23), pages 1-17, November.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:23:p:15685-:d:983869
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    References listed on IDEAS

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    1. Carlos Paulino Agrizzi & Elaine Aparecida Santos Carvalho & Mônica Castoldi Borlini Gadioli & Gabriela Nunes Sales Barreto & Afonso R. G. de Azevedo & Sérgio Neves Monteiro & Carlos Maurício Fontes Vi, 2022. "Comparison between Synthetic and Biodegradable Polymer Matrices on the Development of Quartzite Waste-Based Artificial Stone," Sustainability, MDPI, vol. 14(11), pages 1-18, May.
    2. Yao-Tang Hsu & Wen-Hsin Wang & Wei-Hsi Hung, 2020. "Evaluating the Properties of a Coating Material with Polycaprolactone-Degradable Fluorinated Silicon-Containing Waterborne Polyurethane," Sustainability, MDPI, vol. 12(9), pages 1-15, May.
    3. Maria Luiza Pessanha Menezes Gomes & Elaine Aparecida Santos Carvalho & Gabriela Nunes Sales Barreto & Rubén Jesus Sánchez Rodriguez & Sérgio Neves Monteiro & Carlos Maurício Fontes Vieira, 2022. "Development of Sustainable Artificial Stone Using Granite Waste and Biodegradable Polyurethane from Castor Oil," Sustainability, MDPI, vol. 14(11), pages 1-11, May.
    4. Yao-Tang Hsu & Wen-Hsin Wang & Wei-Hsi Hung, 2020. "Architectural Sustainability and Efficiency of Enhanced Waterproof Coating from Utilization of Waterborne Poly (Siloxane-Imide-Urethane) Copolymers on Roof Surfaces," Sustainability, MDPI, vol. 12(11), pages 1-17, May.
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