Characterization of an alternative thermal insulation material using recycled expanded polystyrene

Reynoso, Laura Elena; Romero, Ángeles Belén Carrizo; Viegas, Graciela Melisa; Juan, Gustavo Alberto San

doi:10.1016/j.conbuildmat.2021.124058

Cited by 34 publications

(14 citation statements)

References 32 publications

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“…The lower the thermal conductivity of the external wall insulation material, the less likely the heat is to penetrate the wall, and the better the energy-saving effect of the building. In general, the thermal conductivity of EPS particles is 0.039 W/(m. K) [ 26 ]. To make the thermal conductivity of the EPS mixture as close as possible to 0.039 W/(m. K), the cement-based binder should be added as less as possible.…”

Section: Resultsmentioning

confidence: 99%

Optimizing the Composition Design of Cement-Based Expanded-Polystyrene (EPS) Exterior Wall Based on Thermal Insulation and Flame Retardance

Shi

Zhao

Zhang³

et al. 2022

Polymers

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The use of thermal insulated decorative panel materials with low thermal conductivity and high flame retardance is a key step toward energy-saving buildings. However, traditional thermal insulation materials are always highly conductive and inflammable, which restricts their application for new buildings. This study aims to prepare the non-combustible, cement-based EPS mixtures with thermal conductivity lower than 0.045 and density less than 140 kg/m3 and characterize it with mechanical, thermal, and flame retardant properties. The effect of particle size, Silica coated and content of EPS on the physical, mechanical, thermal, and combustion performance are conducted in this paper. The comprehensive indoor tests including density, water absorbing, softening coefficient, compressive strength, tensile strength, moisture susceptibility, thermal conductivity, and scanning electron microscopy (SEM) along with combustion performance are reported to evaluate the effects of several variables on the investigated cement-based nonflammable EPS (CEPS)mixtures. The results show that small and gradation EPS particles significantly improve the comprehensive performance of mixtures. In addition, Silica coated ESP significantly improve the flame retardance of mixtures while reduce the mechanical characteristics slightly. These results contribute to the selection of appropriate materials to enhance the thermal insulation, flame retardance and mechanical properties of CEPS.

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Section: Resultsmentioning

confidence: 99%

Optimizing the Composition Design of Cement-Based Expanded-Polystyrene (EPS) Exterior Wall Based on Thermal Insulation and Flame Retardance

Shi

Zhao

Zhang³

et al. 2022

Polymers

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“…The authors noted that the segregated structure can influence the formation of a compact conductive network to improve electromagnetic shielding properties [288]. Polystyrene residue was also investigated in composites for applications in the civil construction sector [289][290][291][292][293], as well as in other sectors [294][295][296][297], and demonstrated viability and improvement of the resulting material for the recovery of residues that are inserted into the environment, in most cases, inappropriately.…”

Section: Polymeric Composites For Waste Recoverymentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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Plastics are ubiquitous in our society and are used in many industries, such as packaging, electronics, the automotive industry, and medical and health sectors, and plastic waste is among the types of waste of higher environmental concern. The increase in the amount of plastic waste produced daily has increased environmental problems, such as pollution by micro-plastics, contamination of the food chain, biodiversity degradation and economic losses. The selective and efficient conversion of plastic waste for applications in environmental remediation, such as by obtaining composites, is a strategy of the scientific community for the recovery of plastic waste. The development of polymeric supports for efficient, sustainable, and low-cost heterogeneous catalysts for the treatment of organic/inorganic contaminants is highly desirable yet still a great challenge; this will be the main focus of this work. Common commercial polymers, like polystyrene, polypropylene, polyethylene therephthalate, polyethylene and polyvinyl chloride, are addressed herein, as are their main physicochemical properties, such as molecular mass, degree of crystallinity and others. Additionally, we discuss the environmental and health risks of plastic debris and the main recycling technologies as well as their issues and environmental impact. The use of nanomaterials raises concerns about toxicity and reinforces the need to apply supports; this means that the recycling of plastics in this way may tackle two issues. Finally, we dissert about the advances in turning plastic waste into support for nanocatalysts for environmental remediation, mainly metal and metal oxide nanoparticles.

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“…It is usually used as a cushion material for the transport of goods, in food packaging, and as a refrigerator liner 13,14 . Its availability, low cost, environmental friendliness, ease of composite production, lightness, non‐requirement of curing agents or hardeners, and flame retardant properties are some of the characteristics that favor its use over epoxy resin for composite development 15,16 . Polystyrene resin is usually prepared by dissolving polystyrene in a suitable solvent 17,18 .…”

Section: Introductionmentioning

confidence: 99%

“…13,14 Its availability, low cost, environmental friendliness, ease of composite production, lightness, non-requirement of curing agents or hardeners, and flame retardant properties are some of the characteristics that favor its use over epoxy resin for composite development. 15,16 Polystyrene resin is usually prepared by dissolving polystyrene in a suitable solvent. 17,18 While this matrix material has been successfully used for the fabrication of composites, some shortcomings have been observed in various studies.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and thermal properties of thermally cured calcined cow bone/kaolin filled hybrid polystyrene composites

Adeniyi

Abdulkareem

Odimayomi

et al. 2023

Asia-Pacific J Chem Eng

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The advantages that plastic‐based composites provide over epoxy‐based composites have catalyzed interest in the former in recent years. Polystyrene, a common packaging plastic, has been used for the production of composites. However, its hydrophilicity and curing duration are issues that undermine its commercialization. In this study, two fillers, calcined cow bone and kaolin, were introduced into a polystyrene resin matrix in varying concentrations through the hand lay‐up method. The composites were thermally cured at a temperature of 200°C for 3 h, after which they were characterized for their thermal and microstructural properties. DSC analysis revealed that the presence of kaolin improved the thermal property of the composite more than cow bone. The FTIR results revealed that the filler(s) were incorporated into the matrix via chemical reactions, as evidenced by bond breakage and formation. EDX results confirmed the incorporation of the fillers, with carbon being the most dominant element in the composites. It showed that the cow bone introduced elements such as phosphorus and calcium, while the kaolin introduced elements such as silicon and aluminum to the composite. SEM micrographs showed the presence of good interfacial adhesion between the filler(s) and the matrix. This study has shown that thermal curing is a viable solution to the shortcomings of polystyrene‐based composites and their commercialization.

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Characterization of an alternative thermal insulation material using recycled expanded polystyrene

Cited by 34 publications

References 32 publications

Optimizing the Composition Design of Cement-Based Expanded-Polystyrene (EPS) Exterior Wall Based on Thermal Insulation and Flame Retardance

Optimizing the Composition Design of Cement-Based Expanded-Polystyrene (EPS) Exterior Wall Based on Thermal Insulation and Flame Retardance

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Microstructural and thermal properties of thermally cured calcined cow bone/kaolin filled hybrid polystyrene composites

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