Characterization of new composite material based on date palm leaflets and expanded polystyrene wastes

Masri, Tahar; Ounis, Houdayfa; Sedira, Lakhdar; Kaci, Abdelhak; Benchabane, Adel

doi:10.1016/j.conbuildmat.2017.12.197

Cited by 94 publications

(62 citation statements)

References 53 publications

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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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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 main advantage of choosing natural resources relies on their low cost, and on the fact they are of a renewable nature. In addition, they have good biodegradability and significant thermal and mechanical properties added to the final product …”

Section: Introductionmentioning

confidence: 99%

“…The solid wastes generated from agricultural and industrial production activities remain one of the most solicited renewable resources in the formulation of composite materials. Indeed, from an environmental point of view, the formulation of a reinforced composite material using biomass or other natural fibers can be an excellent solution …”

Section: Introductionmentioning

confidence: 99%

“…In addition, they have good biodegradability and significant thermal and mechanical properties added to the final product. 1,2 Some types of biomass are produced in the form of agriculture residues and largely go to waste or are employed in low value applications. 3 The solid wastes generated from agricultural and industrial production activities remain one of the most solicited renewable resources in the formulation of composite materials.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, from an environmental point of view, the formulation of a reinforced composite material using biomass or other natural fibers can be an excellent solution. 2 The production process of wines, juices, and grape-based products generates a large production of by-products, such as sugarcane and bagasse. Therefore, it is important to develop studies on the use of these by-products, whether due to environmental concerns or because of the cost generated by their disposal.…”

Section: Introductionmentioning

confidence: 99%

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Grape stalk fibers as reinforcing filler for polymer composites with a polystyrene matrix

Borsoi

Menin

Lavoratti

et al. 2019

J of Applied Polymer Sci

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Lignocellulosic fibers have been one of the most used reinforcements for different types of composites. In this context, grape stalks—often discarded in landfills—can be a potential reinforcement for composites. The present study aimed to incorporate in natura and alkali treated grape stalks into the polystyrene (PS) matrix. Initially, the grape stalks were treated with NaOH and 10, 20, and 30 wt % of stalks were added into the PS matrix. The alkaline treatment of the grape stalk fibers promoted the removal of hemicellulose and the partial removal of lignin, thus increasing the surface roughness and crystallinity index of the fibers. An improvement in the mechanical and dynamic‐mechanical properties and an increase in the maximum degradation temperature of the composites were observed. In conclusion, the use of grape stalks is a promising alternative for reinforcing composites, and, in addition, a more proper destination can be given to this type of residue. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47427.

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Mechanical and thermal properties of date palm/kenaf fiber‐reinforced epoxy hybrid composites

Ghori

Rao²

2021

Polymer Composites

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This study evaluates the thermal and mechanical properties of epoxy hybrid composites reinforced with date palm fiber (DPF) and kenaf fiber (KF) at various fiber loadings. Flexural properties, thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA) of hybrid composites were reported. The flexural properties revealed the effect of fiber ratio on flexural strength and modulus; a higher kenaf ratio showed a higher flexural modulus. TGA revealed the effect of lignin present in the DPF, which affected the glass transition significantly. In DMA characterization, storage modulus revealed that 7DP3K showed higher modulus in the initial stage and had better glass transition than others. The loss modulus showed that the peak of 7DP3K had higher loss modulus, glass transition at a higher temperature, and wider relaxation period. Damping factor also showed that 7DP3K had peak at a higher temperature.The result showed that KF has positively impacted on DPF to improve the mechanical and thermal properties. The hybrid fibers in epoxy composites were effective in increasing the dynamic mechanical properties and flexural strength ascribed to the improved matrix/fiber bonding. The possible applications of the hybrid composites may be in building industry and automobiles.This study gives directions for further research on comparison of treated hybrid composites with untreated ones.

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Characterization of new composite material based on date palm leaflets and expanded polystyrene wastes

Cited by 94 publications

References 53 publications

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

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

Grape stalk fibers as reinforcing filler for polymer composites with a polystyrene matrix

Mechanical and thermal properties of date palm/kenaf fiber‐reinforced epoxy hybrid composites

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