Lightweight plaster materials with enhanced thermal properties made with polyurethane foam wastes

Gutiérrez-González, S.; Gadea, J.; Rodríguez, Ángel; Junco, C.; Carpintero, Verónica Calderón

doi:10.1016/j.conbuildmat.2011.10.055

Cited by 134 publications

(79 citation statements)

References 14 publications

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“…The values obtained for X in this research are in close correspondence too with the thermal conductivity measured in similar materials used forthermal insulation in building construction; for instance: cork-gypsum composites [5], gypsum with polyamide [8] and gypsum with polyurethane foam wastes [9].…”

Section: Thermal Testsupporting

confidence: 59%

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Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

2013

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abstra ctThis work presents the main experimental results obtained from the study of plaster test pieces and boards with addition of various volumetric rubber fractions from mechanical grinding of end-of-life tires (ELTs), in three different particle size gradations. It includes a description of the materials employed, and their proportions. The physical and mechanical properties, as well as the thermal conductivity and acous-tic insulation properties are analyzed. Experimental results obtained for specimens with addition of recy-cled rubber are compared with similar ones, carried out on specimens of plaster of identical features without any addition, evaluating the influence of the particle size and mixture proportions. An improve-ment in thermal and acoustic performance has been obtained as well as a reduction in density, and as a result, some constructive applications for paving and slabs in rehabilitation works are proposed.

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Section: Thermal Testsupporting

confidence: 59%

“…Studies have also been found to improve the thermal performance of plaster with the addition of other materials (polyamide powder and polyurethane foam), in which a reduction of strengths [8,9] also occurs.…”

Section: Introductionmentioning

confidence: 99%

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

2013

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“…Reductions of surface hardness of up to 47% occurred in samples GPB2 in relation to the reference specimens (GPB RS). (Figure 5) shows the relationship between the surface hardness results obtained in this work and the Shore C hardness results obtained in previous studies on 40 × 40 × 160 mm³ specimens (15). A correlation between both parameters was observed, indicating good proportionality with a fit to a polynomial line (R² = 1).…”

Section: Surface Hardnessmentioning

confidence: 72%

“…Thermal resistivity was taken from thermal conductivity results presented in previous works (15) in accordance with standard EN 12667 (22). The non-combustibility test was applied to evaluate the behavior of the samples at high temperatures, in accordance with standard EN ISO 1182 (23).…”

Section: Test Methodsmentioning

confidence: 99%

“…Other studies have been conducted on construction panels prepared with a mixture of gypsum rubber from end-of-life tires (12) and gypsum cork waste (13), both of which are characterized by their low density, as well as on the addition of recycled paper to plasterboard (14). Polyurethane foam waste has been studied in lightweight plaster materials with enhanced thermal properties in (15), although no references have been found on the use of this type of waste in the preparation of gypsum plasterboard.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of gypsum plasterboard with polyurethane foam waste reinforced with polypropylene fibers

et al. 2016

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Gypsum plasterboard that incorporates various combinations of polyurethane foam waste and polypropylene fibers in its matrix is studied. The prefabricated material was characterized in a series of standardized tests: bulk density, maximum breaking load under flexion stress, total water absorption, surface hardness, thermal properties, and reaction to fire performance. Polypropylene fibers were added to the polyurethane gypsum composites to improve the mechanical behavior of the plasterboard under loading. The results indicate that increased quantities of polymer waste led to significant reductions in the weight/surface ratio, the mechanical strength and the surface hardness of the gypsum, as well as improving its thermal resistance. The polypropylene fibers showed good adhesion to the polymer and the gypsum matrix, which enhanced the mechanical performance and the absorption capacity of these compounds. The non-combustibility test demonstrated the potential of the new material for use in internal linings. RESUMEN: Caracterización de placas de yeso con residuos de espuma de poliuretano reforzadas con fibras de polipropileno.Este artículo presenta un estudio experimental basado en la reutilización de residuos de poliuretano en una matriz de yeso para elaborar una placa de yeso laminado. Las placas fueron caracterizadas mediante los ensayos normalizados de densidad aparente, carga de rotura máxima a flexión, absorción total de agua, dureza superficial y reacción al fuego. Se han introducido fibras de polipropileno en la matriz con el objetivo de aumentar la resistencia mecánica del material. Los resultados muestran que el incremento de residuo polimérico en el material implica importantes reducciones de peso, resistencia mecánica y dureza superficial, a la par que se mejora su resistencia térmica consiguiéndose valores similares a los comerciales. Las fibras de polipropileno mostraron una buena adhesión con el polímero, mejorando el comportamiento mecánico y la capacidad de absorción. El ensayo de reacción al fuego confirmó que los residuos de poliuretano pueden ser empleados en la fabricación de placas de yeso laminado en cumplimiento con la normativa.

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Graphene‐Functionalized Natural Microcapsules: Modular Building Blocks for Ultrahigh Sensitivity Bioelectronic Platforms

Wang

Jackman

et al. 2016

Adv Funct Materials

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Natural cellular materials with honeycomb or foam microstructures are excellent inspirations for the biomimetic design of sensitive and robust bioelectronic interfaces. Herein, the fabrication of a hierarchical, self-assembled platform that combines a natural cellular material ( Lycopodium clavatum pollen spores) with an electrically conductive material (reduced graphene oxide, defi ned as rGO) for the fi rst time is reported. The spores function as natural building blocks which are functionalized with crumpled rGO and then deposited on a silicon oxide surface, yielding a 3D architecture with electroactive properties. The hybrid material design is incorporated into a fi eld-effect transistor device and employed in an antibody-based detection scheme in order to measure the concentration of a target protein with a limit of detection of 1 × 10 −15 M , which is fi ve orders of magnitude better than a conventional rGO-based biosensor tested in comparison. The fi ndings in this work highlight the merit of integrating natural cellular materials with electrically conductive materials, offering a framework to develop high-sensitivity bioelectronic platforms.

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Lightweight plaster materials with enhanced thermal properties made with polyurethane foam wastes

Cited by 134 publications

References 14 publications

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

Characterization of gypsum plasterboard with polyurethane foam waste reinforced with polypropylene fibers

Graphene‐Functionalized Natural Microcapsules: Modular Building Blocks for Ultrahigh Sensitivity Bioelectronic Platforms

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