“…The reduction in glass particle aggregation is due to an interaction between the surface hydroxyl groups of glass and the carbonyl groups of MAgPE attached to the polymeric matrix, which enhances the mechanical properties of the composites [ 24 , 27 , 28 ]. In comparison with the different concentrations of the reinforced waste glass powder, the size of aggregation increased with increasing glass phase content in the polymeric matrix phase, which agrees with previous studies [ 29 , 30 , 31 ]. Figure 6 SEM images of (a) raw RHDPE, (b) raw WGP, RHDPE/WGP composites without compatibilizer (c) 5 wt%, (e) 10 wt%, (g) 20 wt% and (i) 30 wt% WGP content and RHDPE/MAgPE/WGP composites with 1.5 wt.% MAgPE as a compatibilizer where (d) 5 wt%, (f) 10 wt%, (h) 20 wt% and (j) 30 wt% WGP content.…”
Several reinforcement materials are incorporated into a polymeric matrix to improve the mechanical properties and reduce the cost of the obtained composites. In this work, recycled high-density polyethylene/waste glass powder composites, compatibilized with maleic anhydride-grafted polyethylene, were prepared using a two-roll mill and compression molding techniques. Four levels of waste glass powder, 2, 10, 20 and 30% by weight, and five levels of the compatibilizer, polyethylene grafted with maleic anhydride (0.5, 1.5, 2.5, 5 and 7.5%by weight), were used. The effect of adding waste glass powder and compatibilizer concentration on the composite's mechanical properties, such as tensile strength, tensile strain, tensile modulus and thermal properties was studied. The results showed that superior mechanical properties were obtained and that the tensile strength and modulus increased with increasing waste glass powder content and compatibilizer concentration by 20 and 1.5 wt%, respectively. However, the elongation at the break decreased with the increase in both factors. The composite, which was prepared under ideal conditions, has high thermal stability and can be easily recycled and reprocessed for five cycles with high mechanical properties. This study recommends that the prepared composite, under optimum conditions, can be used as a cost-effective automobile dashboard material.
“…The reduction in glass particle aggregation is due to an interaction between the surface hydroxyl groups of glass and the carbonyl groups of MAgPE attached to the polymeric matrix, which enhances the mechanical properties of the composites [ 24 , 27 , 28 ]. In comparison with the different concentrations of the reinforced waste glass powder, the size of aggregation increased with increasing glass phase content in the polymeric matrix phase, which agrees with previous studies [ 29 , 30 , 31 ]. Figure 6 SEM images of (a) raw RHDPE, (b) raw WGP, RHDPE/WGP composites without compatibilizer (c) 5 wt%, (e) 10 wt%, (g) 20 wt% and (i) 30 wt% WGP content and RHDPE/MAgPE/WGP composites with 1.5 wt.% MAgPE as a compatibilizer where (d) 5 wt%, (f) 10 wt%, (h) 20 wt% and (j) 30 wt% WGP content.…”
Several reinforcement materials are incorporated into a polymeric matrix to improve the mechanical properties and reduce the cost of the obtained composites. In this work, recycled high-density polyethylene/waste glass powder composites, compatibilized with maleic anhydride-grafted polyethylene, were prepared using a two-roll mill and compression molding techniques. Four levels of waste glass powder, 2, 10, 20 and 30% by weight, and five levels of the compatibilizer, polyethylene grafted with maleic anhydride (0.5, 1.5, 2.5, 5 and 7.5%by weight), were used. The effect of adding waste glass powder and compatibilizer concentration on the composite's mechanical properties, such as tensile strength, tensile strain, tensile modulus and thermal properties was studied. The results showed that superior mechanical properties were obtained and that the tensile strength and modulus increased with increasing waste glass powder content and compatibilizer concentration by 20 and 1.5 wt%, respectively. However, the elongation at the break decreased with the increase in both factors. The composite, which was prepared under ideal conditions, has high thermal stability and can be easily recycled and reprocessed for five cycles with high mechanical properties. This study recommends that the prepared composite, under optimum conditions, can be used as a cost-effective automobile dashboard material.
“…Synthesis methods of PVDF nanocomposites with PVP-coated Au nanoparticles can be found in our previous report. 45 In short, nanoparticle powder was dispersed in N,N-dimethylformamide (DMF) to prepare a homogeneous particle suspension. Separately, the polymer solution was prepared by adding PVDF pellets to DMF, followed by heating at 100 °C under continuous stirring for 1 h. Nanocomposite suspension was prepared by directly mixing the particle suspension with polymer solution under sonication for 1 h at room temperature.…”
Section: Experimental Methodsmentioning
confidence: 99%
“…Synthesis methods of PVDF nanocomposites with PVP-coated Au nanoparticles can be found in our previous report . In short, nanoparticle powder was dispersed in N , N -dimethylformamide (DMF) to prepare a homogeneous particle suspension.…”
A novel nanocomposite dielectric was developed by embedding polyvinylpyrrolidone (PVP)-encapsulated gold (Au) nanoparticles in the polyvinylidene fluoride (PVDF) polymer matrix. The surface functionalization of Au nanoparticles with PVP facilitates favorable interaction between the particle and polymer phase, enhancing nanoparticle dispersion. To study the effect of entropic interactions on particle dispersion, nanocomposites with two different particle sizes (5 and 20 nm in diameter) were synthesized and characterized. A uniform particle distribution was observed for nanocomposite films consisting of 5 nm Au particles, in contrast to the film with 20 nm particles. The frequency-dependent dielectric permittivity and the loss tangent were studied for the nanocomposite films. These results showed the effectiveness of PVP ligand in controlling the agglomeration of Au particles in the PVDF matrix. Moreover, the study showed the effect of particle concentration on their spatial distribution in the polymer matrix and the dielectric properties of nanocomposite films.
“…So, the particle type, size, surface, and weight of the nanoparticle inside the polymer nanocomposites play an important role in its beneficial properties [20,21] To achieve these novel properties, the nanoparticles dispersion inside polymer matrices must be enhanced and that is may be done by the chemical method which uses silane coupling agents or compatibilizers to improve the interfacial adhesion between the polymer and the filler. This functionalization process of nanoparticle surfaces will result in changing the chemistry of nanoparticles to be compatible with that of polymers and to eliminate the agglomeration within the polymer matrix significantly [22][23][24][25]. In power industry field, the most popular inorganic filler nanoparticles have been used in enhancing the performance of insulating polymeric materials are clay, acrylic (PA40), silica (silicon dioxide) (SiO2), alumina (Al2O3), titanium dioxide (TiO2), particularly aluminum nitride (AlN) boron nitride (BN), silicon carbide (SiC) and other metal oxides like magnesium oxide (MgO), zinc oxide (ZnO), etc [26].…”
This study aims to develop large-scale commercial Cross-Linked Polyethylene (XLPE) nanocomposites used for industrial applications with power cables insulations. To achieve this goal, XLPE/zinc oxide nanocomposites were prepared with four unique loadings of Zinc Oxid (ZnO) nanoparticles: 0.5, 2, 3.5 and 5 wt.%, in the presence of appropriate coupling agent which used to reduce the agglomeration of nanoparticles and to improve the compatibility inside the polymer matrix. Amino silane was the coupling agent used in this study and the nanocomposites preparation was done using the melt blending method. The morphology and the distribution of nanoparticles inside XLPE polymer were studied using Field Emission Scanning Electron Microscopy (FE-SEM). The mechanical properties were also evaluated. Using Differential Scanning Calorimetry (DSC) and Thermo Gravimetric Analysis (TGA), the thermal properties for nanocomposites were investigated. The dielectric properties of these prepared XLPE/ZnO nanocomposites were studied by measuring the loss tangent (tan δ) and the dielectric constant (ɛr) under frequencies ranging from 1 Hz to 1 MHz. The AC Breakdown Voltage (AC-BDV) was also measured using a controlled high voltage testing transformer (50 Hz) under the sphere-to-sphere field then; the AC dielectric strength was calculated using the Finite Element Method (FEM) technique.
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