Electrical and Mechanical Properties of Titanium Dioxide Nanoparticle Filled Epoxy Resin Composites

Polizos, Georgios; Tuncer, Enis; Sauers, I.; James, D. R.; Ellis, A.R.; More, Karren L.

doi:10.1063/1.3402331

Cited by 11 publications

(7 citation statements)

References 12 publications

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“…In the recent years, TiO 2 and GO nanoparticles have been extensively employed as active reinforcement materials in many metallic and polymeric matrix nanocomposites for improving the thermal and mechanical performance of the matrixes [23,24]. The various strengthening mechanisms of matrixes in the presence of nano-reinforcements were discussed elsewhere [25].…”

Section: Introductionmentioning

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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Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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“…In recent years, epoxy nanocomposites have gained attractive attention because they give enhancement in mechanical properties compared to conventional composites [17,18]. Polymer nanocomposite can be used in the industry and in electrical applications such as insulating applications due to its dielectric characteristics [19,20]. Furthermore, nanoparticles can be added to polymer matrices to be used in biomedical applications [21].…”

Section: Introductionmentioning

confidence: 99%

“…Rigid, inorganic nanoparticles as TiO 2 enhance the toughness of the epoxy matrices without affecting its glass transition temperature. Titanium dioxide nanoparticles can be added to produce electrical insulators [20] and smart composite materials [33]. Adding the optimum amount of TiO 2 nanoparticles improves the flexural strength and modulus significantly [34].…”

Section: Introductionmentioning

confidence: 99%

Integrated vacuum assisted resin infusion and resin transfer molding technique for manufacturing of nano-filled glass fiber reinforced epoxy composite

Agwa

Youssef

Ali-Eldin

et al. 2020

Journal of Industrial Textiles

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Vacuum-Assisted Resin Infusion (VARI) and Resin Transfer Molding (RTM) techniques are the most common techniques for the manufacturing of polymeric composite laminates. The VARI technique has a lot of advantages such as low cost, free voids laminates and the ability to produce complex shapes. However, it has some drawbacks such as poor surface finish and temperature instabilities. On the contrary, the RTM technique can withstand high temperature, producing a good surface finish and complex shape laminates. However, it has a high tooling cost and poor quality laminates due to void contents. In this study, a new technique integrated both VARI and RTM techniques is developed to minimize their drawbacks. This technique involves using a semitransparent composite plate instead of a vacuum bag in the VARI technique. This semitransparent plate takes the inverse shape of the composite laminate similar to the RTM tooling. However, this plate has a low cost compared with RTM tooling and allows monitoring of the resin flow during the infusion process. To validate the integrated technique, the mechanical properties of composite laminates are compared with that produced by hand layup technique (HLT). Moreover, the influence of incorporation of 0.25 wt. % and 0.5 wt. % of titanium dioxide (TiO2) nanoparticle into woven and chopped fiber/epoxy composite laminates was demonstrated. The results indicated that the laminates fabricated by the integrated VARI method showed higher mechanical properties than those produced by the hand-layup technique. Moreover, glass fiber/epoxy filled with 0.25 wt. % of TiO2 nanoparticles gives high mechanical properties.

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“…Though the filler size is small and uniform, the electrical, mechanical and dielectric properties variations are predominant for the dispersion variations of filler material in the polymer blends. 10 In an attempt to synthesize polymeric insulating material with superior performance, a wide range of material formulations were carried out and tested by many researchers. A number of investigations have shown that the particle size, density and filler concentration play an important role in modifying the properties of the material.…”

Section: Introductionmentioning

confidence: 99%

Electromechanical characterization of titanium-dioxide-filled SiR-EPDM blends

Sarangapani¹,

Deepalaxmi²,

Rajini³

2020

Polymers and Polymer Composites

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The aim of the research is to prepare a polymer composite material for high-voltage cable insulation purposes. Many researchers have blended a silicone rubber (SiR) and ethylene propylene diene monomer (EPDM) at different ratios to identify the composition which possesses excellent electromechanical properties. SiR-EPDM blends in 90:10 and 10:90 ratios were taken up for this study. To these polymer blends, metallic filler titanium dioxide (TiO2) with different densities have been used as the filler materials. The electromechanical performance and the physico-chemical behaviour of SiR-EPDM blends with filler addition were compared with SiR-EPDM blends of the same blend ratio without filler. The electromechanical parameters were measured according to the International Electrotechnical Commission (IEC) and ASTM standards. The surface morphology and filler dispersion were examined by the scanning electron microscopy images. The elemental compositions of the samples were obtained from the energy dispersive X-ray analysis. The changes in electromechanical behaviour of the samples were analysed from Fourier-transform infrared spectroscopy results. The investigations reveal that 5 wt% of high-density TiO2-filled SiR-rich blend possesses the best electromechanical performance of all prepared samples.

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Electrical and Mechanical Properties of Titanium Dioxide Nanoparticle Filled Epoxy Resin Composites

Cited by 11 publications

References 12 publications

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

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

Integrated vacuum assisted resin infusion and resin transfer molding technique for manufacturing of nano-filled glass fiber reinforced epoxy composite

Electromechanical characterization of titanium-dioxide-filled SiR-EPDM blends

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