Mechanical properties of oriented low-density polyethylene with an oriented lamellar-stack morphology

The effect of temperature on the viscoelastic behavior of linear low-density polyethylene

“…0 at point x 2 ½0; l. Substitution of Eqs. (35) and (37) is an analog of the Young's modulus. We now introduce the nominal strain and the nominal stress r by the definitions…”

“…4, does not demonstrate a peak characteristic for the a-relaxation, but it shows a pronounced drop in the slope of the curve in the vicinity of the crossover temperature T c ¼ 60 C, the same temperature at which the maximum disappears on the curves G 00 ðlog xÞ. The crossover temperature T c ¼ 60 C is close to that determined in dynamic tests with frequency x ¼ 1:0 Hz on polyethylene specimens in [35]. To assess the influence of the frequency of oscillations, we repeated the oscillation test in the temperature-sweep mode at the higher frequency of oscillations, x ¼ 50 rad/s (observations are not presented here).…”

LBL Assembled Laminates with Hierarchical Organization from Nano- to Microscale: High-Toughness Nanomaterials and Deformation Imaging

“…The stacking-and-consolidation approach to preparation of materials is a simple and straightforward technique, which has been used before. Compared to previous studies of consolidation of plastic sheets, 28,29 there are several fundamental differences both in realization of approach and qualities of resulting materials when LBL films are used. First of all, the mechanical properties of the consolidated materials in traditional highperformance plastics were typically lower than those of a Mechanical properties for PAA are taken from Nam et al 23 and Huang et al 24 Hot-pressing of individual LBL films does not lead to improvement of mechanical properties, although we cannot exclude the possibility that this observation depends on processing tools and actual press (see the Supporting Information).…”

“…The stacking-and-consolidation approach to preparation of materials is a simple and straightforward technique, which has been used before. Compared to previous studies of consolidation of plastic sheets, , there are several fundamental differences both in realization of approach and qualities of resulting materials when LBL films are used. First of all, the mechanical properties of the consolidated materials in traditional high-performance plastics were typically lower than those of the original macroscale sheets.…”

Effect of Nanotube Functionalization on the Elastic Properties of Polyethylene Nanotube Composites

“…37,38 The literature values of the mechanical properties show considerable variation because of the difficulties of obtaining the properties of crystalline polymers via experimental and analytical techniques. 39,40…”