Physical changes associated with gamma doses on wood/polypropylene composites

Ndiaye, Diène; Badji, Ansou Malang; Tidjani, Adams

doi:10.1177/0021998313506241

Cited by 17 publications

(11 citation statements)

References 23 publications

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“…However, the surface was not as smooth as Fig. 3(c) due to the different of ratio led to a different reorganization of the polymer matrix chains (Ndiaye and Tidjani, 2014). Fig.…”

Section: Resultsmentioning

confidence: 95%

Physico-mechanical, thermal and morphological properties of furfuryl alcohol/2-ethylhexyl methacrylate/halloysite nanoclay wood polymer nanocomposites (WPNCs)

Rahman

Hamdan

Lai

et al. 2017

Heliyon

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In this study, the physical, morphological, mechanical and thermal properties of furfuryl alcohol/2-ethylhexyl methacrylate/halloysite nanoclay wood polymer nanocomposites (FA-co-EHMA-HNC WPNCs) were investigated. FA-co-EHMA-HNC WPNCs were prepared via an impregnation method and the properties of the nanocomposites were characterized through the weight percent gain, Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), three-point flexural test, dynamic mechanical thermal analysis (DMTA), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) analysis and moisture absorption test. The weight percent gain in the 50:50 FA-co-EHMA-HNC WPNC was the highest compared with the raw wood (RW) and other WPNCs. The FT-IR results confirmed that polymerization took place in the nanocomposites, especially 50:50 FA-co-EHMA-HNC WPNC, which had a reduced amount of hydroxyl groups. The SEM results revealed that the 50:50 FA-co-EHMA-HNC WPNC had the smoothest and most uniform surface among all of the nanocomposites. The 50:50 FA-co-EHMA-HNC WPNC showed the highest flexural strength and modulus of elasticity. The results revealed that the storage modulus and loss modulus of the FA-co-EHMA-HNC WPNCs were higher and the tan δ of FA-co-EHMA-HNC WNPCs was lower compared with the RW. The FA-co-EHMA-HNC WPNCs exhibited the higher thermal stability in the TGA and DSC analysis. The 50:50 FA-co-EHMA-HNC WPNC exhibited remarkably lower moisture absorption compared with the RW. Overall, this study proved that the ratio 50:50 FA-co-EHMA ratio was the most suitable for introduction in the in the RW.

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“…However, the surface was not as smooth as Fig. 3(c) due to the different of ratio led to a different reorganization of the polymer matrix chains (Ndiaye and Tidjani, 2014). Fig.…”

Section: Resultsmentioning

confidence: 95%

Physico-mechanical, thermal and morphological properties of furfuryl alcohol/2-ethylhexyl methacrylate/halloysite nanoclay wood polymer nanocomposites (WPNCs)

Rahman

Hamdan

Lai

et al. 2017

Heliyon

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“…The resulting degradation of the filler particles may occur in a radiation crosslinked lignocellulosic–thermoplastic composite. During degradation, there will be a loss in strength due to primary bond breakage in the polymer matrix as well as the lignocellulosic constituents .…”

Section: Resultsmentioning

confidence: 99%

Impacts of gamma irradiation on the properties of hardwood composite based on rice straw and recycled polystyrene foam wastes

Eskander

Tawfik

2018

Polymer Composites

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A hardwood composite (HWC) was formulated by adding rice straw (RS), as filler, to the recycled polystyrene (WPS) foam waste, as a matrix, at 170 C and pressing under 40 kPa. The air dried RS fiber reinforced the recycled spent polymer at fiber content of 50% (mass: mass), then the combination was treated with the maleated form of the polystyrene waste (WPS-g-MA), as coupling agent, at a predetermine ratio. The final HWC boards were subjected to gamma irradiation, in air and at ambient temperature (≈30 AE 3 C), using radiocobalt source ( 60 Co) at a dose rate 0.96 kGy h −1 in the range of integrated doses from 0.5 to 500 kGy. The impacts of increasing gamma absorbed doses on mechanical properties of final product were evaluated based on flexural strength, tensile strength, elongation at break, and tensile modulus measurements. Water absorption by the HWC boards was, also, elaborated under the increasing irradiation doses. To achieve a complete characterization of the prepared composite, the obtained hard samples were investigated applying the Fourier-transform infrared (FTIR) and the scanning electron microscope (SEM) tools. Depending on the experimental data, the renewability in the properties of HWC product is its high resistance capability against γ-irradiation up to 500 kGy and their acceptable attenuation potential, in the range of the applied doses. This provided an additional attractive advantage to the eco-friendly quality of the acquired HWCs based on recycled thermoplastic spent polystyrene foam reinforced with air dried RS. POLYM. COM-POS., 40:2284-2291, 2019

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“…Because of the high flammability of cellulose, the addition of wood makes the composite less thermally stable [32]. The TGA measurements indicate that, when the polymer is heated, its thermal stability is generally evaluated from the loss of mass and its molecular weight decreases sharply due to the degradation of the molecular chains [33].…”

Section: Thermal Stability Of the Compositementioning

confidence: 99%

Study of the Thermal, Rheological, Morphological and Mechanical Properties of Biocomposites Based on Rod-Of Typha/HDPE Made up of Typha Stem and HDPE

Niang¹,

Ly²,

Diallo³

et al. 2018

AMPC

Self Cite

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The thermal, rheological and morphological properties of composite biomaterials made with mixture of high density polyethylene and typha rod powder (RD) were evaluated. The dynamic mechanical behavior of the samples was studied with 25%, 35% and 45% typha stem powder concentrations. The viscoelastic properties are mainly related to the nature of the polymer and the typha stem powder. Storage (G') and loss (G") moduli increased significantly, depending on the amount of powder in the molten mixture. After a viscosity increase was noticed in low frequency, it decreased in high frequencies, which demonstrates the pseudo-plasticity effect. Morphological and thermal characterization results have shown the dispersion state of the powder and its ability to modify the kinetics crystallization of biocomposites.

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Physical changes associated with gamma doses on wood/polypropylene composites

Cited by 17 publications

References 23 publications

Physico-mechanical, thermal and morphological properties of furfuryl alcohol/2-ethylhexyl methacrylate/halloysite nanoclay wood polymer nanocomposites (WPNCs)

Physico-mechanical, thermal and morphological properties of furfuryl alcohol/2-ethylhexyl methacrylate/halloysite nanoclay wood polymer nanocomposites (WPNCs)

Impacts of gamma irradiation on the properties of hardwood composite based on rice straw and recycled polystyrene foam wastes

Study of the Thermal, Rheological, Morphological and Mechanical Properties of Biocomposites Based on Rod-Of Typha/HDPE Made up of Typha Stem and HDPE

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