Glass foam composites based on tire's waste for microwave absorption application

Lamri, Younes; Benzerga, Ratiba; Àyadi, A.; Gendre, Laurent Le; El-Assal, Aicha

doi:10.1016/j.jnoncrysol.2020.120017

Cited by 15 publications

(7 citation statements)

References 60 publications

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“…Figure 7 shows the results for porosity (82 ± 4, 87 ± 4, and 86 ± 4%) in relation to temperature (850, 900 and 950 °C), respectively. The results found for porosity, compressive strength, thermal conductivity, and apparent density are within the limits of those found for commercial glass foams according to the literature: porosity (85–95 ± 4%); compressive strength (0.4–6.0 MPa) [ 51 ]; thermal conductivity (0.005–0.008 W/mK) [ 52 ]; and apparent density (0.1–0.3 g/cm 3 ) [ 53 , 54 ]. In addition to these properties, the material has the potential to be used as a wall coating, improving thermal comfort in the construction sector [ 48 ].…”

Section: Resultssupporting

confidence: 81%

Influence of Sintering on Thermal, Mechanical and Technological Properties of Glass Foams Produced from Agro-Industrial Residues

2022

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This study investigates the technological, thermal, mechanical, and technological properties of glass foams produced with soda-lime glass residues and rice husk ash sintered at 850–950 °C. The results for apparent density (0.28–0.30 g/cm3), porosity (82–87 ± 4%), compressive strength (1.18 ± 0.03–1.25 ± 0.03 MPa), and thermal conductivity (0.283–0.326 W/mK) are within the limits for commercial foams. The volumetric expansion potential and low thermal conductivity of the glass foams produced favor their use as thermal insulating materials in coat walls, thus improving thermal comfort in the construction sector. The results of X-ray fluorescence show that the foam glass is of the soda-lime type (SiO2, Na2O, and CaO), the rice husk ash is rich in SiO2, CaO, Na2O, Al2O3, K2O and Fe2O3, and the calcium carbonate is rich in CaO. The glass foams produced in this study are promising because they present more economical and efficient manufacturing, resulting in lightweight materials with thermal insulating properties that can be used in the construction sector. These glass foams also reduce the consumption of natural and synthetic raw materials, adding value to the waste used in this study by transforming them into co-products, thus favoring the economic circulation of the region.

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Section: Resultssupporting

confidence: 81%

Influence of Sintering on Thermal, Mechanical and Technological Properties of Glass Foams Produced from Agro-Industrial Residues

2022

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“…For these composites, the dielectric losses, at 4 GHz for example, increase from 0.08 to 0.61 when the CFs percentage increases from 0.0125 to 0.075 wt.%, respectively. This increase in properties has already been reported by several studies using CFs load with different matrix [8,44,50]. One can note that this low CF loads present high dielectric losses compared to losses of epoxy foams with higher carbon fiber loads obtained in other works , with G the electric conductivity of the composite, 2 / the vacuum permittivity and N the wave pulsation.…”

Section: Dielectric Propertiessupporting

confidence: 78%

Ultra-porous and lightweight microwave absorber based on epoxy foam loaded with long carbon fibers

Breiss

Assal

Benzerga

et al. 2021

Materials Research Bulletin

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“…The principle of microwave drying process is that the polar molecules in natural rubber latex (especially water molecules) constantly oscillate, rotate and collide under the action of high‐frequency electromagnetic field, generating friction and heat and converting the electromagnetic energy to the thermal energy. During microwave heating, the heat conduction and water diffusion are from the inner layer to the outer layer, the temperature gradient is small and the drying process is fast 14–18 . These issues are the main differences between the hot air drying process and the microwave drying process.…”

Section: Resultsmentioning

confidence: 99%

“…During microwave heating, the heat conduction and water diffusion are from the inner layer to the outer layer, the temperature gradient is small and the drying process is fast. [14][15][16][17][18] These issues are the main differences between the hot air drying process and the microwave drying process. In the hot air drying process, the absorbed heat in the surface layer is transferred to the inner layers through heat conduction.…”

Section: Principles Of Drying the Natural Rubber Latexmentioning

confidence: 99%

Mechanism of the foaming agent‐assisted microwave drying process on the construction of natural raw rubber network and cross‐linking network

Xiao

Yan

Hao

et al. 2022

J of Applied Polymer Sci

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The drying process of natural rubber latex significantly affects the structure of the raw rubber network and vulcanizate crosslinking network, resulting in various anti-aging performances. In the present study, a microwave generator was used as an efficient source of clean energy; potassium oleate was introduced as a foaming agent to increase the porosity and water loss channel of the latex system. Aiming at dehydrating and drying natural rubber latex efficiently, an aging resistant rubber composite was prepared. Meanwhile, the mechanism of the foaming agent-assisted microwave drying process on the raw rubber network and the cross-linking network was studied. The experimental results show that the prepared rubber using by this process has higher plastic retention and fluidity. Moreover, it contains more non-rubber components (e.g. protein and acetone extract) and better network structure of raw rubber and vulcanized rubber. It is found that applying this process increases the tensile product by 13.5% and the retention rate of the tensile product after aging by 15.3 times. This process is important for the development of the rubber industry in the direction of green environmental protection, energy conservation, and high efficiency.

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Glass foam composites based on tire's waste for microwave absorption application

Cited by 15 publications

References 60 publications

Influence of Sintering on Thermal, Mechanical and Technological Properties of Glass Foams Produced from Agro-Industrial Residues

Influence of Sintering on Thermal, Mechanical and Technological Properties of Glass Foams Produced from Agro-Industrial Residues

Ultra-porous and lightweight microwave absorber based on epoxy foam loaded with long carbon fibers

Mechanism of the foaming agent‐assisted microwave drying process on the construction of natural raw rubber network and cross‐linking network

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