Study on dielectric, thermal, and mechanical properties of the ethylene vinyl acetate reinforced with ground tire rubber

Abstract

Mass production of tires, as well as the difficult storage or elimination is a real environmental problem. Various methods for recycling tires are currently used, such as mechanical grinding, which puts vulcanized rubber, steel, and fibers apart. The rubber may be used in several industrial applications such as flooring, insulations, footwear, etc. The aim of this article focuses on finding a new application for the old used tires (GTR). Tire dust and recycled EVA thermoplastic have been mixed, and we have checked the maximum accepted values of GTR concentration that can be admitted while keeping dielectric, mechanical, and thermal properties within acceptable values, as well as initial polymer microstructure. This would allow including GTR in industrial applications of recycled EVA. The recycled tire dust which result from the industrial milling processes has been divided by sieve in three different categories according to the size of the particles (<200, 200—500, and >" xbd="654" xhg="622" ybd="1596" yhg="1560"/>500 µm). This has then been mixed with EVA in different GTR concentrations (0%, 5%, 10%, 20%, 40%, and 70%) in order to establish its conduct through electrical, mechanical, thermal, and microstructure tests, which will be held in a range of temperatures between 30°C and 120°C, and with a range of frequency between 1 × 10-2 and 3 × 106 Hz.Peer ReviewedPostprint (published version

Waste tire rubber in polymer blends: A review on the evolution, properties and future

“…Colom et al [35] observed the drop in tensile strength of 20 wt% GTR containing HDPE blend with <200 µm particle size was only 25% whereas when bigger particle size (>500 µm) was used the drop observed was 51%. Similar observation was also noted by Mujal-Rosas et al [88] in their work with EVA/GTR where they used three different particle sizes (<200, 200 -500, >500 µm).…”

“…Sonnier et al [34] reported loading and particle size of GTR had no significance on melting temperature and crystallinity index of the LDPE/GTR blends. Mujal-Rosas et al [88] in their work with different particle size of GTR disperse in EVA phase concluded the GTR particle size or loading has no significant influence on the matrix in terms of crystallinity due to little interaction between GTR and EVA. The crystallinity of blends with <200 µm particle size was equivalent to blend with >500 µm particle size has further enhanced the claim.…”

“…Figure 15. SEM micrographs of increasing GTR loading in EVA matrix a) 10wt%, b) 20wt%, c) 50wt% and d) 70wt% GTR [88].…”

“…Influence of the particle size of GTR on mechanical properties of thermoplastic blends Figure 35. SEM micrographs of increasing GTR loading in EVA matrix a) 10wt%, b) 20wt%, c) 50wt% and d) 70wt% GTR [88]. …”

Improving the properties of reclaimed waste tire rubber by blending with poly(ethylene‐co‐vinyl acetate) and electron beam irradiation

“…Colom et al (2009) observed the drop in tensile strength of 20 wt% GTR containing HDPE blend with <200 µm particle size was only 25% whereas when bigger particle size (>500 µm) was used the drop observed was 51%. Similar observation was also noted by Mujal-Rosas et al (2011) in their work with EVA/GTR where they used three different particle sizes (<200, 200 -500, >500 µm). Sonnier et al (2007) used three different GTR particle sizes which were all >500 µm and did not observe significant influence of particle size on the mechanical properties of 50 wt% GTR loaded LDPE blend.…”