Investigation the mechanical, rheological, and morphological properties of acrylonitrile butadiene styrene blends with different recycling number content

Abstract

In this study, acrylonitrile butadiene styrene polymer was exposed to 12 injection cycles to investigate the influence of recycling number on the mechanical, rheological, and morphological properties. Also, binary and ternary blends including different weight percentages and recycling number of virgin-recycled polymers were prepared. A slight decrement was found in the tensile strength values with recycling number. All blends including recycled polymer (binary or ternary) gave lower tensile strength values with respect to 100% virgin polymer. Strain at break value was decreased after twelve times recycling; however, no clear tendency was observed with the presence of different ratios of virgin polymer to recycled polymer. Impact strength of the polymer decreased with recycling number. There was relatively large drop in the third recycling, from 72 kJ/m 2 to 38.5 kJ/m 2 ; however, further recycling induced in a slower drop in the impact strength to 32.5 kJ/m 2. All blends including recycled material gave lower impact strength values as compared to 100% virgin polymer. It was observed that the melt flow index values increased with the recycling number, a total of 26.53% after twelve times recycling. All blends containing recycled material showed higher melt flow index values as compared to 100% virgin polymer.

An Additive Model to Predict the Rheological and Mechanical Properties of Polypropylene Blends Made by Virgin and Reprocessed Components

“…This is so-called primary recycling. The recycled polymer is, of course, not or slightly degraded and the properties of this monopolymer blend are certainly still good [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. However, in general, low amounts of recycled polymer are usually mixed with the virgin polymer because, at least in some cases, increasing its content, the properties of the blend, and in particular the elongation at break, dramatically decay.…”

“…More recent studies [12][13][14][15] reported results on virgin-recycled ABS blends. Melt flow data indicated that all blends containing recycled material showed higher melt flow index values as compared to virgin polymer.…”

Rheological, Mechanical and Morphological Characterization of Monopolymer Blends Made by Virgin and Photo-Oxidized Polypropylene

“…In our previous works, we have investigated the rheological and mechanical properties of monopolymer blends of high-and low-density polyethylene [1,2] as well as polypropylene [3,4], polyvinylchloride [5], polyethylenetherephthalate [6] and polyamide [7]. Similarly, other research groups have examined monopolymer blends of virgin and recycled acrylonitrile-butadiene-styrene (ABS) [8][9][10][11], high density polyethylene (HDPE) [12,13] and polyethylene terephthalate (PET) [14][15][16]. The different degradation processes occurring in the recycled polymer influence the properties of their blends and alter their compatibility to a certain extent.…”

Effects of Reprocessing on Acrylonitrile–Butadiene–Styrene and Additives

“…They prepared binary and ternary blends containing different weight percentages of virgin and recycled polymers. They found that the impact strengths of the blends with recycled ABS were lower than the impact strength of virgin ABS [14].…”