Abstract
The effect of nanofilles additives containing copper oxide nanoparticles stabilized by a polymer matrix of high-pressure polyethylene obtained by the mechanochemical method on features of the structure and properties of metal-containing nanocomposites based on isotactic polypropylene and high-pressure polyethylene was studied using differential thermal (DTA) and X-ray phase (XRD) analyzes. The improvement of strength, deformation and rheological parameters, as well as thermal-oxidative stability of the obtained nanocomposites was revealed, that apparently, is associated with the synergistic effect of interfacial interaction of copper-containing nanoparticles in the PE matrix with the components of the PP/PE polymer composition
Highlights
IntroductionIsotactic polypropylene (PP) and high pressure polyethylene (PE) are known to be immiscible polyolefins
For the directed improvement of the properties of polypropylene (PP), the modification method is widely used, which consists in creation of polymer–polymer compositions [1].Isotactic polypropylene (PP) and high pressure polyethylene (PE) are known to be immiscible polyolefins
An increasing the NF concentration of more than 1.0 mass % leads to a decrease in the strength of the composite (13.83 MPa), that is probably due to the aggregation of NP, that leads to the formation of microdefects in the bulk of the polymer matrix
Summary
Isotactic polypropylene (PP) and high pressure polyethylene (PE) are known to be immiscible polyolefins To improve their compatibility existence functional groups in their composition or introduction of nanofillers (NF), which are an interphase additive, to the composition to improve both the compatibility of components and the operational properties of the obtained materials, is necessary [2,3,4,5,6,7,8]. It is known that the use of d-valence metal nanoparticles (copper, zinc, cobalt, nickel, etc.) in polymers allows one to obtain fundamentally new materials which are widely used in radio and optoelectronics as magnetic, electrically conductive, and optical media [12, 13].
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