Structural features and mechanism of crystallization of nanocomposites based on maleinated high density polyethylene and carbon black

Allahverdiyeva, Kh. V.; Kakhramanov, N. T.; Martynova, G.S.; Mustafayeva, F.A.; Gahramanli, Yunis; Habibova, Almas G.; Bafadarova, Hokuma; Suleymanova, E. I.; Gurbanova, Rena V.

doi:10.1016/j.heliyon.2023.e14829

Cited by 5 publications

(2 citation statements)

References 22 publications

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“…The value of n is determined by the tangent of the slope of the straight line to the x-axis. 10 To obtain sufficiently complete information about the process of formation of the crystal structure of polymer mixtures, let us turn to Figure 7.…”

Section: Thermomechanical Propertiesmentioning

confidence: 99%

“…In this regard, a significant role is assigned to the selection of compatibilizers, which play a significant role in improving the technological compatibility of polymer blends. [8][9][10][11] In this work, we used compatibilized ethylene/1-hexene copolymer EHC* and nitrile butadiene rubber (SKN) with different contents of nitrile groups as mixing components of the mixture. These polymers are among the clearly expressed incompatible polymer systems.…”

Section: Introductionmentioning

confidence: 99%

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Some problem questions in studying the properties of dynamically vulcanized polymer systems based on ethylene/1-hexene copolymer and nitrile butadiene rubber

Kakhramanov¹,

Huseynova²,

Gahramanli

et al. 2023

Progress in Rubber, Plastics and Recycling Technology

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The article presents the results of a study of the influence of the type and concentration of nitrile butadiene rubber on the main physical and mechanical properties of polymer compositions based on compatibilized ethylene/1-hexene copolymer (EHC*). SKN-18, SKN-26, and SKN-40 were used as nitrile butadiene rubber. The compatibilizer – polyethylene-graft-methacrylic acid was used to improve the compatibility of the mixed components of the mixture. At the first stage, the task of the study was to investigate the effect of the concentration of the considered nitrile rubbers on such properties of the compositions as yield strength, tensile strength, elongation at break, flexural strength, melt flow rate and heat resistance. It was found that, regardless of the type of used nitrile butadiene rubber, with an increase in its content in the composition of the ethylene/1-hexene copolymer, a regular decrease in strength parameters, heat resistance, and melt fluidity is observed. It is shown that with the loading of 30 wt% SKN-18 or 40 wt% SKN-26 and SKN-40 into the composition of the ethylene/1-hexene copolymer phase inversion occurs in the composite materials, according to which the dispersed phase becomes a dispersed medium. The thermomechanical properties of the considered samples were studied. It was found that in those samples in which phase inversion occurred, a region of a highly elastic plateau is formed, which increases with an increase in the content of the rubber component. This area indicates the formation of elastomer with rubber properties. The regularities of crystallization of the compositions depending on the content of the amorphous component were studied by the method of stepwise dilatometry. The mechanism of crystal formation was studied depending on the content of the amorphous component. The influence of the crosslinking agent concentration – dicumyl peroxide on the main properties of dynamically vulcanized elastomers has been studied.

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Section: Thermomechanical Propertiesmentioning

confidence: 99%