Morphology and Mechanical Properties of Natural Rubber-PCL Core-Shell/PLA Composites

Abstract

Natural rubber (NR)/Polycaprolactone (PCL) core-shell (NR-ad-PCL), from admicellar polymerization, was as an impact modifier for the composites. PLA was mixed with NR-ad-PCL with different NR-ad-PCL contents at 5, 10, 15 and 20 wt%. PLA-based composites were prepared by co-rotating twin screw extruder. The morphology of the composites was observed by Field emission scanning electron microscope (FE-SEM). Mechanical properties of the composites were investigated by dynamic mechanical analyzer and pendulum impact tester. The impact strength of the PLA filled with NR-ad-PCL increased while modulus of the PLA composites decreased with increasing rubber contents.

Asymptotic analysis for non-local problems in composites with different imperfect contact conditions

“…In this paper, we consider a composite made by a plastic material containing a periodic array of heat conductors, having infinite thermal conductivity. Such materials are widely used in practical applications, as remarked in [27,30,34,35,37,39]. For the mathematical aspects behind the behaviour of these kinds of materials, we refer to [2,14,15,16,17,22,24,28,29,31,32,33], where such problems are studied in various contexts like heat diffusion, electric conduction, petroleum engineering industry, wave equations or elastic properties of perforated materials.…”