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Effects of orientation ordering of low‐density polyethylene—multi‐walled carbon nanotubes composites determined by severe plastic deformation
Author(s) -
Beloshenko Victor,
Voznyak Andrei,
Vozniak Iurii,
Savchenko Bogdan
Publication year - 2019
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24987
Subject(s) - materials science , composite material , linear low density polyethylene , carbon nanotube , agglomerate , nanocomposite , deformation (meteorology) , polyethylene , polymer
In this work, by the example of the system of linear low‐density polyethylene—multi‐walled carbon nanotubes (LLDPE/CNTs), specific features of the nanocomposite structure modified by severe plastic deformation (SPD) are studied. The effect of SPD on the mechanical properties and electrical conductivity is analyzed. It is shown that SPD leads to destruction of CNTs aggregates and more homogeneous their distribution. CNTs formed structure is characterized by the presence of large (200–300 nm) aggregates of CNTs and small (<100 nm) CNTs aggregates. It is found that within the range of a small degree of strain (up to e = 4.4), rupture is the prevailing mechanism of agglomerate disintegration, and erosion dominates in the range of high strain (e = 4.4–8.5). SPD‐induced formation of a 3D‐conducting network of CNT S and strengthened LLDPE matrix determines an enhanced set of electrical and mechanical characteristics of the tested composites. POLYM. ENG. SCI., 59:714–723, 2019. © 2018 Society of Plastics Engineers