Thermal properties enhancement of epoxy resins by incorporating polybenzimidazole nanofibers filled with graphene and carbon nanotubes as reinforcing material

Datsyuk, Vitaliy; Trotsenko, Svitlana; Trakakis, George; Boden, André; Vyzas-Asimakopoulos, K.; Parthenios, John; Galiotis, Costas; Reich, Stéphanie; Papagelis, K.

doi:10.1016/j.polymertesting.2019.106317

Cited by 55 publications

(32 citation statements)

References 57 publications

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“…The increase in strain and density of structural defects in milled samples containing mixed hard and soft materials leads to the emergence of a new nanomaterial with the high saturation magnetization of the soft phase and the high coercivity of the hard phase. It was also found that the CNT inclusions in composite materials caused by high-energy milling leads to an improvement in their thermal, electrical, and mechanical properties [ 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Grinding and the Mill Type on Magnetic Properties of Carboxylated Multiwall Carbon Nanotubes

et al. 2021

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The influence of the grinding process on the magnetic properties of as prepared and functionalized multiwall carbon nanotubes (MWCNTs) is presented. We have observed that 3 h mechanical grinding at 400 rpm in contrast to functionalization does not remove the iron contamination from MWCNTs. However, it changes the Fe chemical states. The magnetic properties of iron nanoparticles (Fe-NPs) embedded in the carbon matrix of MWCNTs have been analyzed in detail. We have proven that single-domain non-interacting Fe(C,O)-NPs enriched in the Fe3C phase (~10 nm) enclosed inside these nanotubes are responsible for their magnetic properties. Mechanical grinding revealed a unique impact of -COOH groups (compared to -COONH4 groups) on the magnetism of functionalized MWCNTs. In MWCNT-COOH ground in a steel mill, the contribution of the Fe2O3 and α-Fe phases increased while the content of the magnetically harder Fe3C phase decreased. This resulted in a 2-fold coercivity (Hc) decrease and saturation magnetization (MS) increase. A 2-fold remanence (Mr) decrease in MWCNT-COOH ground in an agate mill is related to the modified Fe(C,O)-NP magnetization dynamics. Comparison of the magnetostatic exchange and effective anisotropy length estimated for Fe(C,O)-NPs allows concluding that the anisotropy energy barrier is higher than the magnetostatic energy barrier. The enhanced contribution of surface anisotropy to the effective anisotropy constant and the unique effect of the -COOH groups on the magnetic properties of MWCNTs are discussed. The procedure for grinding carboxylated MWCNTs with embedded iron nanoparticles using a steel mill has a potential application for producing Fe-C nanocomposites with desired magnetic properties.

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Section: Introductionmentioning

confidence: 99%

Effect of Grinding and the Mill Type on Magnetic Properties of Carboxylated Multiwall Carbon Nanotubes

et al. 2021

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“…Nowadays, intensive research has been focused on nanomaterials through the hybridization of two or more nanoparticles to create several hybridized nanostructures with new/enhanced properties and synergistic functionalities for attaining excellent performance in advanced applications. According to Datsyuk et al, the addition of polybenzimidazole nanofiber mats filled with several types of nanosized carbon materials such as CNTs, GNPs, graphite and carbon black (CB), into an epoxy resin enhances the mechanical and thermal properties ( Datsyuk et al, 2020 ). Zdiri et al have studied the effects of different nanofillers such as clay, CNTs, silica, CB, CaCO 3 , zinc oxide and other materials on a recycled polypropylene (rPP) matrix.…”

Section: Introductionmentioning

confidence: 99%

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

Tarawneh

Saraireh

Chen

et al. 2021

Radiation Physics and Chemistry

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A thermoplastic elastomer (TPE) based nanocomposite with the same weight ratio of hybrid nanofillers composed of carbon nanotubes (CNTs) and montmorillonite nanoclay (DK4) was prepared using a melt blending technique with an internal mixer. The TPE composite was blended from polylactic acid (PLA), liquid natural rubber (LNR) as a compatibilizer and natural rubber (NR) in a volume ratio of 70:10:20, respectively. The weight ratio of CNTs and DK4 was 2.5 wt%. The prepared samples were exposed to gamma radiation at range of 0–250 kGy. After exposure to gamma radiation, the mechanical, thermo-mechanical, thermal and electrical conductivity properties of the composites were significantly higher than unirradiated TPE composites as the irradiation doses increased up to 150 kGy. Transmission electron microscopy (TEM) micrographs revealed the good distribution and interaction between the nano-fillers and the matrix in the prepared TPE hybrid nanocomposites. In summary, the findings from this work definite that gamma irradiation might be a viable treatment to improve the properties of TPE nanocomposite for electronic packaging applications.

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“…Epoxies have the characteristics of light weight, easy processing, strong designability and excellent mechanical properties. [1][2][3][4][5][6][7] Nearly the epoxy networks currently being produced are synthesized from petroleum, it is worth noting that 90% of the commercialized epoxy thermosets are derived from diglycidyl ether of bisphenol A (DGEBA) which is the product of the reaction between bisphenol A and epichlorohydrin. 8 In addition, the main raw material, bisphenol A has been shown to has adverse effects on the environment and human endocrine system.…”

Section: Introductionmentioning

confidence: 99%

“…Epoxy resin is the main base material of CFRP. Epoxies have the characteristics of light weight, easy processing, strong designability and excellent mechanical properties 1–7 . Nearly the epoxy networks currently being produced are synthesized from petroleum, it is worth noting that 90% of the commercialized epoxy thermosets are derived from diglycidyl ether of bisphenol A (DGEBA) which is the product of the reaction between bisphenol A and epichlorohydrin 8 .…”

Section: Introductionmentioning

confidence: 99%

High‐performance thermosets with tailored properties derived frommulti‐armstared vanillin and carbon fiber composites

Guo

Dong

et al. 2021

J of Applied Polymer Sci

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Vanillin, a rigid compound can be separated from lignin, is a promising sustainable candidate for industrial and high performance polymers, while synthesis of hexa-epoxies is challenging. Meanwhile, carbon fiber reinforced biobased polymers combining high performance are more difficult to be achieved because of the contradictions of liquidity and high rigidity in the polymer structure and performance. In this paper, a novel hexa-epoxy functionalized bio-based epoxy resin (HPVIGEP) with a multi-arm star structure, which simultaneously reduced the viscosity and improved thermo-mechanical properties. The rheological behavior analysis results of HPVIGEP indicated that the viscosity was 3406.9 mPaÁs at 25 C, which dramatically decreased by 75.8% compared to DGEBA (14,096 mPaÁs), leading to excellent processability and adaptability. At the same time, the study on mechanical properties revealed that the cured HPVIGEP manifested 30.6%, 33.7% and 49.0% in higher tensile strength, tensile modulus and storage modulus (30 C) than of cured commercial epoxy, respectively. The tensile strength and flexural strength of carbon fiber composites which were applied HPVIGEP were increased by 9.3% and 10.9%, respectively. In a word, this work provides the promise for the application of environmentally friendly bio-based composite materials.

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Thermal properties enhancement of epoxy resins by incorporating polybenzimidazole nanofibers filled with graphene and carbon nanotubes as reinforcing material

Cited by 55 publications

References 57 publications

Effect of Grinding and the Mill Type on Magnetic Properties of Carboxylated Multiwall Carbon Nanotubes

Effect of Grinding and the Mill Type on Magnetic Properties of Carboxylated Multiwall Carbon Nanotubes

Gamma irradiation influence on mechanical, thermal and conductivity properties of hybrid carbon nanotubes/montmorillonite nanocomposites

High‐performance thermosets with tailored properties derived frommulti‐armstared vanillin and carbon fiber composites

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