Development of Date Pit–Polystyrene Thermoplastic Heat Insulator Material: Physical and Thermal Properties

Abu-Jdayil, Basim; Hittini, Waseem; Mourad, Abdel‐Hamid I.

doi:10.1155/2019/1697627

Cited by 31 publications

(15 citation statements)

References 36 publications

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“…The added buffing dust had not only enhanced the strength but also reduced the thermal conductivity due to attachment at the surface. Abu-Jdayil et al reported that pure polystyrene have more voids than the composite but in this work composite has more voids [8]. Blowing agent increases the volume of the composite panel that decreases the density of the composite [25].…”

Section: Scanning Electron Microscopic (Sem) Studymentioning

confidence: 57%

“…Physical and mechanical properties of different types of boards prepared by recycling waste materials met recommended standards. The successful use of Balsa wood waste in preparation of oriented strand boards, sugarcane bagasse, curaua and jute in multilayer particle boards, natural Emirati shale in construction polymer composites and date pit powder in polystyrene insulation matrix encourage the scientist to explore further options [4][5][6][7][8]. In leather industry, only 20 percent (by weight) of raw material is converted into final product [9].…”

Section: Introductionmentioning

confidence: 99%

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Recycling of buffing dust tanneries waste to prepare structural thermal insulation panels

Ulfat¹,

Mohyuddin²,

Amjad³

et al. 2021

Mater. Res. Express

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Thermal insulation panels were prepared by mixing the buffing dust obtained from tanneries waste with the polystyrene. The ratio in weight percentage of buffing dust, polystyrene and blowing agent was 20:77:3 respectively in these panels. The samples were prepared in co-twine extruder at 210 oC. Different physico-chemical properties were investigated for these samples that are required to analyze the usability of a material for construction. The composite panels showed better thermal insulation characteristics than the simple polystyrene boards. This study demonstrated that prepared composite panels have good thermal conductivity (0.029 W/m-K at 27 oC), density (300 Kg/m3), compression strength (6.25 ton) and water absorption (7.5%) without degradation of mechanical properties. Thermogravimetric analysis depicted that composite panels were thermally stable from 200 oC to 412 oC. FTIR analysis showed that composite has carbonyl and free amino functional groups. The SEM study explained that voids were created in the composite and homogeneousity was decreased after the addition of buffing dust. The composite had 62% of carbon and 0.2% of chromium as determined by EDX analysis. The results suggested that the prepared composite panels can be used as thermal insulation boards in building sector which will help in the recycling of waste produced by leather industry and consequently a reduction in environmental pollution.

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Section: Scanning Electron Microscopic (Sem) Studymentioning

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Recycling of buffing dust tanneries waste to prepare structural thermal insulation panels

Ulfat¹,

Mohyuddin²,

Amjad³

et al. 2021

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Agglomeration was visible, masking smaller particles. According to [ 22 ], the particle agglomeration could be due to the presence of hydrogen bonds between the particles of the natural fillers . As the smaller particles have large surface areas, the possibility of aggregation/agglomeration will be increased and would enhance the possibility to interact with the other particles [ 43 ].…”

Section: Resultsmentioning

confidence: 99%

“…As a result, date palm wood was an appropriate sample to be used in an efficient and safe insulating material. Another study used date pit powder with polystyrene to form a DPP-polystyrene composite that exhibits an effective thermal insulator material with properties that are similar to the conventional insulating materials that are typically used [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Date pits based nanomaterials for thermal insulation applications—Towards energy efficient buildings in Qatar

et al. 2021

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Air-conditioning systems make the most significant part of energy consumption in the residential sector. There is no denying that it is essential to produce a comfortable indoor thermal environment for residents in a building. The actual goal is to achieve thermal comfort level without putting too much cost on the ecological system by trying to conserve the amount of energy consumed. An effective way to help achieve such a goal is by incorporating thermal insulation in buildings. Thermal insulations help reduce thermal energy gained during the implementation of a desired thermal comfort level. This study aims to use an environmentally friendly nanoparticle of date pits to create thermal insulations that can be used in buildings. Different ratios of the nanoparticle of the date pits and sand composite were investigated. Fourier transform infrared spectroscopy and scanning electron microscopy were used to characterize the new materials. The material with nanoparticles of date pits and 50% by-volume epoxy provided good thermal insulation with thermal conductivity of 0.26 W⁄mK that could be used in the existing buildings. This has the potential to reduce the overall energy consumption by 4,494 kWh and thereby reduce CO2 emissions of a 570 m2 house by 1.8 tons annually. In conclusion, the future of using nanoparticles of date pits in construction is bright and promising due to their promising results.

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“…Thermal and physical properties of the DPP-PS composite are reported elsewhere. 26 In this work, the mechanical behavior of the DPP-PS composites is presented. The prepared composites were subjected to various mechanical tests to examine the compression strength, tensile strength, and flexural strength.…”

Section: Introductionmentioning

confidence: 99%

Development of date pit–polystyrene thermoplastic heat insulator material: Mechanical properties

Hittini

Abu-Jdayil

Mourad

2019

Journal of Thermoplastic Composite Materials

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In this work, an investigation of the mechanical behavior of thermoplastic polystyrene (PS) composites containing date pit powder (DPP) is presented. DPP waste contents ranging from 0 wt% to 50 wt% were used to prepare the PS composite. The experimental results revealed that the addition of DPP to the PS matrix decreased the compressive, tensile, and flexural strengths and moduli of the composite. The reduction in the composite’s compressive strength was minimal with filler contents up to 30%. The DPP-PS composites demonstrated superior tensile strength (1.12–0.34 MPa), compressive strength (11.58–2.31 MPa), and flexural strength (21.10–2.37 MPa) when compared with the commonly used insulating materials and comparable to some construction materials. The negative impact of DPP on the mechanical properties of PS was attributed to the agglomeration of the natural fillers creating stress concentration points, as well as poor compatibility between the fillers and the PS matrix. Alkaline treatment of DPP with sodium hydroxide solution enhanced marginally the compressive strength (by 4.2%) and effectively the tensile (by 190%) and flexural strength (by 55%) of all prepared composites. The scanning electron microscopy micrographs demonstrated that the treatment effectively changed the surface roughness of the date pit particles and enhanced the interference between the fillers and the PS matrix. Thermogravimetric analysis and Fourier transform infrared spectra of the treated filler indicate that the observed improvement in adhesion was due to removal of hydrophilic components from DPP.

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Development of Date Pit–Polystyrene Thermoplastic Heat Insulator Material: Physical and Thermal Properties

Cited by 31 publications

References 36 publications

Recycling of buffing dust tanneries waste to prepare structural thermal insulation panels

Recycling of buffing dust tanneries waste to prepare structural thermal insulation panels

Date pits based nanomaterials for thermal insulation applications—Towards energy efficient buildings in Qatar

Development of date pit–polystyrene thermoplastic heat insulator material: Mechanical properties

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