Dielectric, mechanical, and thermal characterization of high-density polyethylene composites with ground tire rubber

Abstract

The mass manufacture of tires and the difficulty in storing or disposing them constitute\ud a serious environmental problem. At present, various recycling methods for tires are\ud used, such as grinding, which separates the steel and fibers from the vulcanized rubber,\ud then using the rubber in numerous industrial applications such as pavements, insulators,\ud footwear, etc. The aim of this article focuses on finding a new application for the ground\ud tire rubber (GTR). This would allow including GTR in industrial applications of recycled\ud high-density polythene (HDPE). Tire dust and HDPE thermoplastic have been mixed,\ud and the maximum accepted values of GTR concentration that can be admitted while\ud keeping dielectric, mechanical, and thermal properties within acceptable values, as well\ud as initial polymer microstructure, have been checked. In addition, the suitability of the\ud compounds for antistatic applications is studied. The recycled tire dust which results\ud from the industrial milling processes has been divided by sieve in three different categories\ud according to the size of the particles (<200, 200–500, and >500 mm). This has\ud then been mixed with HDPE in different GTR concentrations (0%, 5%, 10%, 20%, 40%,\ud 50%, and 70%) in order to establish its conduct through electrical, mechanical, thermal,\ud and microstructure tests, which will be held in a temperature range 30–120 C, and with\ud a frequency range 1 10 2 and 3 106 Hz. The thermal tests determined the\ud enthalpies and fusion temperatures which allow for the observation of changes in crystalline and microstructure of the matrix, and finally, the fracture surfaces of the\ud compound samples have been evaluated using scanning electron microscopy.Peer ReviewedPostprint (published version

Preparation and Characterization of Composites Materials with Rubber Matrix and with Polyvinyl Chloride Addition (PVC)

“…In present, composite materials with a recycled PVC matrix mixed with plasticized PVC and an armature with grinding rubber from waste have been made, and the results obtained showed that such a composite material has interesting acoustic properties at frequencies higher than 2500 Hz. Additionally, the use of ground rubber waste has led to an improvement in the rigidity of such composite materials with an increase in Young’s modulus, but also to a slow decrease in tensile strength, elongation at break and hardness [ 4 , 5 , 6 ].…”

Comparison of Mechanical and Electrical Characteristics of Various Polymers Blended with Ground Tire Rubber (GTR) and Applications

“…The global problem of the accumulation of used tires as stores [1,2] has driven the efforts of the scientific community to search for solutions for recovery and reuse of this wasted material. The use of this ground tire rubber (GTR) as reinforcements in composite materials has been widely studied in several works [3]. The presence of GTR in polymer matrix composite materials modifies both the dielectric and mechanical behavior.…”

Utilization of industrial ultra‐fine carbon ash as filler of high‐k composites with high density polyethylene as matrix

“…A large of that iron originates from recycling scraps, such as old cars, cans, bridges, rails and demolished buildings. There are some reports on preparing high dielectric constant (high-k) composites with industry wastes, such as ground tire rubber [4] and red mud [5,6]. As in this process, some metals such as zinc protecting on the surface of steel are also oxidized into dust.…”

“…Unfortunately, it has seldom been studied [1][2][3]. There are some reports on preparing high dielectric constant (high-k) composites with industry wastes, such as ground tire rubber [4] and red mud [5,6]. Considering the composition of CA, it can be used to prepare high-k polymer composites.…”