Influence of curing mode on formation of epoxy composite structure in the presence of carbon nanotubes

Kondrashov, S. V.; Marakhovskiy, P. S.; Mayorova, I. A.; Егоров, Андрей Александрович; Mansurova, I. A.; Yurkov, G. Yu.

doi:10.1134/s2075113314050104

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…The absence of such inflections in modified samples indicates, probably, that the use of noncovalently modified nanotubes provides crosslinked polymer with low number of defects. This agrees with our previous results where CNTs, functionalized with carboxylic groups were used …”

Section: Resultssupporting

confidence: 93%

The use of noncovalently modified carbon nanotubes for preparation of hybrid polymeric composite materials with electrically conductive and lightning resistant properties

Kondrashov

Soldatov

Gunyaeva

et al. 2017

J of Applied Polymer Sci

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In this work, approach to use of noncovalently modified carbon nanotubes is given for preparation of functional hybrid polymeric composite materials (HPCM) based on epoxy resin. Conductive glass-fiber plastics with resistivity in transverse and lengthwise direction 9.0Á3 10 2 and 30-50 Ohm cm, respectively, were obtained. The tetrafluoroethylene telomer and fluorocontaining organosilicon copolymer with amino groups were used as modifiers for carbon nanotubes. Thermal, electrical, and mechanical properties of the obtained materials were studied. The mechanism of the effect of noncovalent modification of carbon nanotubes on functional properties of HPCM was discussed. It was found, that type of modifier significantly affects the level of functional properties. The use of fluorocontaining organosilicon copolymer is more optimal in comparison with tetrafluoroethylene telomer. Thus, HPCM with carbon-fiber filler and this modifier has higher electrical conductivity and lightning strike resistance in comparison with nonmodified HPCM. This approach is promising to impart antistatic properties for glass-fiber plastics and increase lightning resistance of carbonfiber plastics.

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Section: Resultssupporting

confidence: 93%

The use of noncovalently modified carbon nanotubes for preparation of hybrid polymeric composite materials with electrically conductive and lightning resistant properties

Kondrashov

Soldatov

Gunyaeva

et al. 2017

J of Applied Polymer Sci

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“…Epoxy resins are prominent inspiration due to varied range of material performance including excellent mechanical properties, outstanding dimensional stability, good adhesion, and suitable corrosion resistance. 1 To strengthen the properties of epoxy composite, addition of fillers preferably nanofillers like clay, 2 alumina, 3 titania, 4 colloidal silica, 5,6 and carbon nanotubes [7][8][9] have been reported. Applications of epoxy composites are well known in various industries, such as laminates, flooring, caulking, and aerospace.…”

Section: Introductionmentioning

confidence: 99%

Effect of novel UV-curing approach on thermo-mechanical properties of colored epoxy composites in outsized dimensions

Atif

Yang

et al. 2016

Journal of Composite Materials

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In couple of years, epoxy UV curing has emerged as a necessity, yet it has some limitations, e.g. little curing conversion of thick films, especially with colored additives. Thick dimensions do not allow radiation to penetrate into the sample. Moreover, colored additives cover photoinitiators and reduce their efficiency. Therefore, UV-cured epoxy composites survive only in thin layers. Current research has resolved the issue, through a unique “smart approach,” which resolves the problem by separating the initiation step of the reaction (which is true photo-induced reaction) from the propagation (which is not directly dependent on light). This approach completely photo-cures epoxy thick films with colored additives. Superb filler dispersion has been observed, along with strongly interconnected polymeric network. Augmentation in thermo-mechanical properties has been observed through different instrumental techniques.

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The effect of carbon nanotubes on the curing processes of epoxy-amine compositions

Yagund

Potapova

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The effects of the concentration and functionalization of carbon nanotubes on the degree of conversion of epoxy groups in epoxy-amine compositions based on ED-20 epoxy oligomer and the PEPA curing agent are studied. It has been shown that increasing the concentration of functionalized carbon nanotubes (CNT) from 0 to 0.5 % increases the degree of conversion of the epoxy groups during curing at a room temperature. Further increase in concentration CNT of up to 1 % does not effect on the reaction kinetics. For native CNT not established such a relationship. Explains such a pronounced effect on the f-CNT aminolysis reaction kinetics and ultimate degree of conversion of epoxy groups, apparently, the catalytic effect of oxygen-containing groups (hydroxyl, carboxyl, and others) grafted to the surface of CNTs and their direct involvement in the reaction. By optical microscopy showed that the size of the agglomerates of nanotubes were substantially higher in the native systems than in the system with the functionalized nanotubes. These results may be important for the development of creation of epoxy composites modified by nanoparticles.

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Influence of curing mode on formation of epoxy composite structure in the presence of carbon nanotubes

Cited by 5 publications

References 10 publications

The use of noncovalently modified carbon nanotubes for preparation of hybrid polymeric composite materials with electrically conductive and lightning resistant properties

The use of noncovalently modified carbon nanotubes for preparation of hybrid polymeric composite materials with electrically conductive and lightning resistant properties

Effect of novel UV-curing approach on thermo-mechanical properties of colored epoxy composites in outsized dimensions

The effect of carbon nanotubes on the curing processes of epoxy-amine compositions

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