Thermal conductivity of composites made of wastes of wood and expanded polystyrene

Agoua, E; Allognon-Houessou, Elisabeth; Adjovi, Edmond; Togbedji, Bovis

doi:10.1016/j.conbuildmat.2012.12.016

Cited by 41 publications

(21 citation statements)

References 4 publications

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“…Sawdust composites made from gluing of sawdust or wood chips together with expanded polystyrene are known to exhibit good thermal conductivity characteristics. These products are deemed appropriate for use in room partitioning and suspended ceilings [32].…”

Section: Particleboards and Related Productsmentioning

confidence: 99%

Engineering Characteristics and Potential Increased Utilisation of Sawdust Composites in Construction—A Review

Mwango¹,

Kambole²

2019

JBCPR

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Many timber producing countries generate more than 2 million m 3 of sawdust annually. In developing countries, sawdust is often disposed of by open dumping, open burning, or dumping in landfills. This poses huge environmental challenges related to air pollution, greenhouse gas emissions, and destruction of plant and aquatic life. Findings from this review article reveal that sawdust can be used to make sawdust construction composites with good modulus of elasticity, water absorption and strength characteristics that satisfy international specifications. These composites include particleboards, sawdust concrete blocks or bricks and sawdust concrete. The article concludes that partially replacing 5% to 17% of sand with sawdust, or replacing cement with sawdust ash in proportions of 5% to 15% in concrete mixes can produce structural concrete with compressive strengths greater than 20 MPa. Partially replacing 10% to 30% of sand used in the manufacture blocks and bricks with sawdust can also produce sawdust bricks and blocks with compressive strengths greater than 3 MPa. Sawdust composites are also attractive for their low thermal conductivity, high sound absorption and good sound insulation characteristics. These findings indicate that increased utilisation of sawdust composites in construction will mitigate against potential sawdust environmental pollution, conserve energy and reduce disposal costs.

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Section: Particleboards and Related Productsmentioning

confidence: 99%

Engineering Characteristics and Potential Increased Utilisation of Sawdust Composites in Construction—A Review

Mwango¹,

Kambole²

2019

JBCPR

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“…Most of the attention has been devoted to applications involving energy production in power plants (Fogarasi and Cormos, 2014;Sarkar et al, 2014;Vanneste et al, 2011). Nether-the-less, some reports considered the use of wood waste for building materials (Aigbomian and Fan, 2013;Agoua et al, 2014;ElicheQuesada et al, 2012).…”

Section: Introductionmentioning

confidence: 97%

Wood waste incorporation for lightweight porcelain stoneware tiles with tailored thermal conductivity

Novais

Seabra

Labrincha

2015

Journal of Cleaner Production

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“…However, among methods for expanded materials preparing for recycling, the most effective from an economic and technological point of view are methods based on the complete or partial removal of gas inclusions without pressure, namely by heating of plastic foam waste in air or in the liquid phase. There are methods of EPS waste compaction with solvents that reduce the volume of a polymer. The most effective solvents are acetone, ethyl acetate, and tetrahydrofuran, which reduce the volume of PS in 2, 5, and 8 s, respectively.…”

Section: Introductionmentioning

confidence: 99%

Modified Densified Waste of Expanded Polystyrene and Its Blends With Polyamide 6

Levytskyi

Moravskyi

Masyuk

et al. 2020

Polymer Engineering & Sci

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The regularities of expanded polystyrene (EPS) waste modified by polyvinylpyrrolidone (PVP) with the simultaneous gas release in various solvents were revealed. The upper sorption limit depends on the nature of the solvent, the concentration and molecular mass of the PVP, the temperature of the process, and the apparent density of the EPS. It was established that the sorption limit of PVP increases with increasing of its concentration in the system and decreases with molecular mass increasing. Based on XRD and FTIR analyses, it was determined that materials based on polyamide 6 and EPS modified by PVP have an increased crystallinity degree by 10-15%, a smaller average crystallite size and higher technological compatibility. The addition of PVP-modified EPS contributes to the increase of the yield strength of polyamide 6 by about 5%-10%. The increase of the Vicat softening point by 5-8 K and the surface hardness by 25-30 MPa of materials based on polyamide 6 and modified polystyrene was investigated. It is caused by the redistribution of intermolecular bonds between the components of the blend under by the effect of a uniformly distributed PVP in the EPS resulting in increased compatibility between the components and the compacted structure. POLYM. ENG. SCI., 60:935-943, 2020. * modified EPS; ** degassed EPS. FIG. 7 XRD patterns of mixtures on the basis of PA-6 and EPS: (a) pure PA-6; (b) mixture of PA-6 and modified EPS; (c) mixture of PA-6 and degassed EPS. EPS content 5 wt%. 1-approximation curve of diffraction; 2, 3, 4, 5optimized curves of intensity of reflexes of the planes (200)α-, (002)α-, γ-, and amorphous phase.

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Thermal conductivity of composites made of wastes of wood and expanded polystyrene

Cited by 41 publications

References 4 publications

Engineering Characteristics and Potential Increased Utilisation of Sawdust Composites in Construction—A Review

Engineering Characteristics and Potential Increased Utilisation of Sawdust Composites in Construction—A Review

Wood waste incorporation for lightweight porcelain stoneware tiles with tailored thermal conductivity

Modified Densified Waste of Expanded Polystyrene and Its Blends With Polyamide 6

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