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<p>This paper deals with the results of an experimental research on the thermophysical and chemical properties of four types of plastic waste (PVC, HDPE, LDPE and PS). The objective is to test the feasibility of this waste (PW) without any addition (virgin) as thermal insulating material for filling hollow partitions. SEM coupled with scattering spectroscopy energy (EDS) and FTIR analyzes were carried out to define the microstructure and chemical composition of the PWs. Thermal properties such as conductivity and specific heat capacity were determined. Their thermal performances are also evaluated in a reduced-scale cavity at several temperature set-points. Our experimental findings indicate that the thermal conductivity and diffusivity values of waste plastics of different sizes and types vary between 0.0682 and 0.1276&#xa0;W/m.K, 0.0896 and 0.2432 mm<sup>2</sup>/s respectively. The results obtained are slightly higher than typical insulation materials. However, they represent an effective and economical way to save the planet from plastic waste (PW) and reduce energy consumption.</p>

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Valorization of Different Types of Plastic Waste for Developing Innovative Thermal Insulating Materials in Building

  • 期刊论文

  • 发表日期：

    2025年2月5日

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  • Amina Mourid,
  • Mustapha El Alami,
  • Rachid Saadani,
  • Miloud Rahmoune

摘要

This paper deals with the results of an experimental research on the thermophysical and chemical properties of four types of plastic waste (PVC, HDPE, LDPE and PS). The objective is to test the feasibility of this waste (PW) without any addition (virgin) as thermal insulating material for filling hollow partitions. SEM coupled with scattering spectroscopy energy (EDS) and FTIR analyzes were carried out to define the microstructure and chemical composition of the PWs. Thermal properties such as conductivity and specific heat capacity were determined. Their thermal performances are also evaluated in a reduced-scale cavity at several temperature set-points. Our experimental findings indicate that the thermal conductivity and diffusivity values of waste plastics of different sizes and types vary between 0.0682 and 0.1276 W/m.K, 0.0896 and 0.2432 mm2/s respectively. The results obtained are slightly higher than typical insulation materials. However, they represent an effective and economical way to save the planet from plastic waste (PW) and reduce energy consumption.