Impact of inclusion of graphene oxide nanosheets on polypropylene thermal characteristics

Sabet, Maziyar; Soleimani, Hassan; Mohammadian, Erfan; Hosseini, Seyednooroldin

doi:10.1007/s13726-020-00864-y

Cited by 17 publications

(12 citation statements)

References 51 publications

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“…The 2°C smaller melting temperature of bound PA6 in RGO that associated with the nanocomposites and control polymer is probably a cause of the length of PA6 links grafted onto the RGO surface and is monitored to be owing to Gr hindering the link spread in PA6, causing in a smaller molecular weight [26]. The physical characteristics of crystalline polymers are directed by super-molecular morphology that consecutively is regulated by crystallization procedure [20,21]. Therefore, the research of crystallization performance is essential for creating structureproperty correlations in PA6-RGO nanocomposites.…”

Section: Results and Analysismentioning

confidence: 99%

“…Graphene (Gr), was interested owing to its interesting and incomparable physical characteristics [11][12][13]. Hence, Gr was underlined in assembling several micro-electrical tools [14], batteries [15], particularly in the area of conductive switching [16], bio-imaging [17], and photocatalysis [18], and one of the utmost intriguing features of Gr is the capacity for their usage in electronic purposes [19][20][21]. Gr was considered due to the very proficient thermal interface material, significant thermal regulator substance, and conductive alternate additive in nanocomposites, owing to its excellent thermal conductivity (k) and superior steadiness in elevated temperature [22].…”

Section: Introductionmentioning

confidence: 99%

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The influence of reduced graphene oxide on the Polyamide 6 nanocomposite characteristics

Sabet

Hosseini

2022

Preprint

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Polyamide 6 (PA6) nanocomposites with electrically and thermally conductive were formulated via melt processing of PA6 and different inclusion of reduced graphene oxide (RGO). These nanocomposites showed that the small percolation threshold and the perfect formation of conductive link form with 0.5 wt% and ̴3.0 wt% of RGO respectively. Crystallization examination confirmed that RGO enabled the crystallization of PA6 structure mostly through speeding up the formation of crystal nucleus, reaching a maximum and smallest of crystal grain extent with RGO inclusion up to 2.0 wt% that approved the generation of the most unflawed crystalline matrix. With the dynamic rheological testing, frequency-independence of G’ and abruptly decrease phase angle at the small-frequency area via RGO content of 2.0 wt% specify the alteration state from liquid-state to solid-state rheological performance, and validate the development of percolation link structure with RGO in the function of a crosslinking factor. The progress of fire-retardant characteristics of PA6 was attained due to the inclusion of RGO owing to the improver in the PA6 structure. Morphological research showed that RGO was spread consistently in the PA6 structure. From the outcomes of cone calorimetry outcomes, the flame-retardant characteristics of PA6 were promoted with the addition of RGO in the PA6 structure. These tests show substantial capacity for the bulk manufacture of electrically conductive polymer/RGO nanocomposites.

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Section: Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of reduced graphene oxide on the Polyamide 6 nanocomposite characteristics

Sabet

Hosseini

2022

Preprint

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“…The increase in the viscosity with the incorporation of graphene, and the formed char layer can prevent the melted materials from dripping. [113,115] Figure 8e,f display the morphology of the char residue of PET fabric after VFT. It can be seen that the pristine PET was in a melt state whereas only dense char residual presents in the PET coated with GO compound due to the flake preventing melting and dripping.…”

Section: Anti-dripping Propertiesmentioning

confidence: 99%

Graphene‐Based Textiles for Thermal Management and Flame Retardancy

Chu

Cao

et al. 2022

Adv Funct Materials

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Textile thermoregulation and thermal protection are crucial for human health and safety. Individual thermophysiological comfort control and flame retardancy are lacking in traditional garments. Novel nanomaterial innovations have solved these limitations and have facilitated the development of next‐generation intelligent textiles. Smart textiles based on graphene and graphene derivatives material have attracted substantial attention owing to its superior electrical conductivity, high thermal conductivity, and flexibility. This review provides an overview of the current progress on the smart textiles using graphene and graphene derivative material with a focus on personal thermal management and flame retardancy. It covers mechanics, material developments, fabric designs, and on‐body applications, offering a comprehensive knowledge and scope of the entire area. Innovations in chemistry and materials with worldwide collaboration will push the frontiers of graphene‐based smart textiles, promoting the development of genuine commercial goods on the market.

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“…At the temperature of 470 °C, the pHEMA sample was completely degraded, while decomposition of the nanocomposites occurred at higher temperature. This increase in the thermal stability could be ascribed to nanoparticles that induced restricted In addition, nanoparticles, having high thermal conductivity, increase heat transfer rate that resulted in the uniform distribution of thermal energy within the nanocomposite, and hence delayed the degradation of the nanocomposites [35]. The interactions between the pHEMA matrix and nanoparticles also facilitated heat transfer from the matrix to nanoparticles, which are more thermally stable than the matrix.…”

Section: Tga Analysismentioning

confidence: 99%

Effects of TiO2 and GO nanoparticles on the thermomechanical properties of bioactive poly-HEMA nanocomposites

et al. 2021

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Bioactive polymeric nanocomposites are indispensable materials and have received great attention owing to their diverse applications in human body. In this study, a poly(hydroxyethyl methacrylate) (pHEMA) complex was prepared using hydroxyethyl methacrylate (HEMA) as a base material and trimethylolpropane trimethacrylate (TMPTA) and benzoyl peroxide (BPO) as cross-linking agents. The pHEMA nanocomposites were prepared by melt processing technique. In this process, a twin screw extruder machine was used. Twin screw extrusion is used extensively for mixing, compounding, or reacting polymeric materials. The flexibility of twin screw extrusion equipment allows this operation to be designed specifically for the formulation being processed. The nanocomposites of pHEMA/TiO 2 and pHEMA/TiO 2 /GO were synthesized using pHEMA as a matrix with the addition of a small amounts of titanium oxide nanoparticles (TiO 2 1 wt%) and graphene oxide (GO 0.1 wt%) as reinforcement materials. The thermomechanical study of pHEMA/TiO 2 and pHEMA/TiO 2 /GO nanocomposites was carried out via thermogravimetric (TGA), differential scanning calorimetry (DSC), micro-indentation, micro-scratch, and FTIR analyses, and compression testing. The microstructural characterization of the nanocomposites was studied by FESEM and XRD analysis. Significant changes in microstructural behavior with improved thermomechanical properties were observed in pHEMA/TiO 2 and pHEMA/TiO 2 /GO nanocomposites as compared to pure pHEMA. In this work, pure pHEMA and pHEMA/TiO 2 and pHEMA/TiO 2 /GO nanocomposites were studied for dental applications.

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Impact of inclusion of graphene oxide nanosheets on polypropylene thermal characteristics

Cited by 17 publications

References 51 publications

The influence of reduced graphene oxide on the Polyamide 6 nanocomposite characteristics

The influence of reduced graphene oxide on the Polyamide 6 nanocomposite characteristics

Graphene‐Based Textiles for Thermal Management and Flame Retardancy

Effects of TiO2 and GO nanoparticles on the thermomechanical properties of bioactive poly-HEMA nanocomposites

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