Effect of SiO2 grafted MWCNTs on the mechanical and dielectric properties of PEN composite films

Jin, Fei; Feng, Mengna; Huang, Xu; Cheng, Long; Jia, Kun; Liu, Xiaobo

doi:10.1016/j.apsusc.2015.09.086

Cited by 30 publications

(12 citation statements)

References 41 publications

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“…10 For comparison with other previously reported polymer composites with high dielectric properties, the corresponding dielectric permittivity, loss, tensile strength, modulus, filler content and fabrication method are listed in Table.1 [43][44][45][46][47][48][49][50][51] Additionally, the concept of fabricating sandwich structured polymer composite embedded with continuous conductive reinforcements, such as graphene film and CVD grown CNT array, is promising to be used as novel high-k materials. Their overall performances can be easily tuned by tailoring structure and chemical property of continuous nanomaterial for applications in high technology electronics.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Enhanced dielectric and mechanical properties in chlorine-doped continuous CNT sheet reinforced sandwich polyvinylidene fluoride film

Zhang

Wang

et al. 2016

Carbon

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Section: Accepted Manuscriptmentioning

confidence: 99%

Enhanced dielectric and mechanical properties in chlorine-doped continuous CNT sheet reinforced sandwich polyvinylidene fluoride film

Zhang

Wang

et al. 2016

Carbon

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“…It has been observed that introducing MWCNTs, with their high surface area along with other physical properties, to the porous structure of SiO 2 results in the enhanced adsorbing performance of cooling chillers [8]. Additionally, it is worth mentioning that nanosilica (nano-SiO 2 ) has outstanding qualities such as its tiny particle diameter, higher surface area, and consequently higher activity and superior mechanical properties [9,10].…”

Section: Introductionmentioning

confidence: 99%

Morphological: Optical, and Mechanical Characterizations of Non-Activated and Activated Nanocomposites of SG and MWCNTs

et al. 2021

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Nanocomposites of silica gel (SG) and multiwalled carbon nanotubes (MWCNTs) of relatively low concentrations (0.25, 0.50, and 0.75 wt%) were characterized before and after annealing. Adsorption is a surface phenomenon, and based on this, the morphology of the composites was investigated by scanning electron microscopy (SEM). The produced images show that the MWCNTs were embedded into the silica gel base material. Fourier transform infrared (FTIR) transmittance spectroscopy showed that MWCNTs were not functionalized within the matrix of silica gel and MWCNT composites. However, after annealing the composites at 400 °C for 4 h in air, evidence of activation was observed in the FTIR spectrum. The effects of the embedding of MWCNTs on porosity, specific surface area, and pore size distribution were studied using Raman spectroscopy. The Raman spectra of the prepared composites were mainly dominated by characteristic sharp scattering peaks of the silica gel at 480, 780, and 990 cm−1 and a broad band centered at 2100 cm−1. The scattering peaks of MWCNTs were not well pronounced, as the homogeneity of the composite is always questionable. Nanosizer analysis showed that at 0.25 wt%, the distribution of MWCNTs within the silica gel was optimal. Vickers hardness measurements showed that the hardness increased with the increasing weight percent of MWCNTs within the composite matrix, while annealing enhanced the mechanical properties of the composites. Further studies are required to investigate the pore structure of silica gel within the matrix of MWCNTs to be deployed for efficient cooling and water purification applications.

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“…In the field of polymeric matrix composites, the interface compatibility between reinforcement and polymeric matrices is one of the most important factors that influence the composite properties [ 1 , 2 , 3 ]. When the reinforcement was an inorganic filler, especially ceramic, the interface compatibility between the reinforcement and polymeric matrix was poor [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Micro/Mesoporous Fe3O4/Fe-Phthalocyanine Microspheres and Effects of Their Surface Morphology on the Crystallization and Properties of Poly(Arylene Ether Nitrile) Composites

Ren

Tang

et al. 2018

Materials

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The surface morphology of nanoparticles significantly affects the final properties and interfacial characteristics of their composites. Thus, investigations on the surface morphology of the nanoparticles is essential to fabricate improved nanoparticle-reinforced composites. Fe3O4/Fe-phthalocyanine (FePc) hybrid microspheres with micro/mesoporous structures were prepared via a solvothermal process and solvent etching method. The surface morphology and compositional distribution were respectively investigated using a scanning electron microscope (SEM) and a transmission electron microscope (TEM) to rule out that FePc monomers have been blended with Fe3O4 to form Fe3O4/FePc hybrid microspheres without serious agglomeration. The surface roughness of Fe3O4/FePc microspheres was investigated by the scanning probe microscope (SPM), and confirmed by the adsorption and desorption isotherms of N2. The effects of the various surface morphologies on the crystallization behavior of crystallizable poly(arylene ether nitrile) (c-PEN) were first employed to confirm the surface characteristics of the resulted microspheres. Results indicated that the etched Fe3O4/FePc microspheres would improve the crystallization degree of c-PEN, due to their much more micro/mesoporous structures than that of original Fe3O4/FePc. Then, Fe3O4/FePc hybrid microspheres reinforced PEN composite films were prepared and their interfacial compatibility was monitored using an SEM. Excellent thermal stability and improved mechanical properties were obtained by combining the etched Fe3O4/FePc and PEN matrix. The excellent surface properties and micro/mesoporous structures make the novel Fe3O4/FePc an excellent candidate of organic/inorganic hybrid fillers and micro/mesoporous materials.

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Effect of SiO2 grafted MWCNTs on the mechanical and dielectric properties of PEN composite films

Cited by 30 publications

References 41 publications

Enhanced dielectric and mechanical properties in chlorine-doped continuous CNT sheet reinforced sandwich polyvinylidene fluoride film

Enhanced dielectric and mechanical properties in chlorine-doped continuous CNT sheet reinforced sandwich polyvinylidene fluoride film

Morphological: Optical, and Mechanical Characterizations of Non-Activated and Activated Nanocomposites of SG and MWCNTs

Micro/Mesoporous Fe3O4/Fe-Phthalocyanine Microspheres and Effects of Their Surface Morphology on the Crystallization and Properties of Poly(Arylene Ether Nitrile) Composites

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