Ground tire rubber filled low-density polyethylene: The effect of particle size

Kiss, Lóránt; Simon, Dániel Ábel; Petrény, Roland; Kocsis, Dávid; Bárány, Tamás; Mészáros, László

doi:10.1016/j.aiepr.2021.07.001

Cited by 16 publications

(9 citation statements)

References 31 publications

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“…Fazli and Rodrigue 17 reported that the introduction of smaller GTR particles into recycled high‐density polyethylene can improve the interfacial interactions generating a more uniform TPE structure, resulting in better mechanical properties. This trend was also confirmed by Kiss 18 who pointed out that a higher specific surface area of smaller GTR produced better interfacial interactions between both phases. Compared with traditional TPE prepared using virgin rubbers and plastics, very few reports were able to effectively produce suitable GTR‐based TPE at high‐GTR concentrations.…”

Section: Introductionsupporting

confidence: 73%

Compatibilized thermoplastic elastomers based on highly filled polyethylene with ground tire rubber

Liu

Peng

Zhang

et al. 2022

J of Applied Polymer Sci

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Thermoplastic elastomers (TPE) based on ground tire rubber (GTR) are good strategies for the circular economy and sustainable development of waste tire rubber recycling. However, several parameters must be optimized to produce valuable TPE. The most important ones are GTR concentration and dispersion, as well as crosslinking degree, combined with interfacial interactions between the GTR and the thermoplastic matrix. In this work, TPE based on highly filled linear low‐density polyethylene (LLDPE) with GTR (50%–90%) was prepared via dynamic vulcanization. In particular, different reclaimed GTR (RR) was used alone or with a compatibilizer (maleic anhydride grafted polyethylene, PE‐g‐MAH) to prepare compatibilized TPE. The interactions between the rubber and plastic were quantified by a series of characterizations including mechanical tests, rheological measurements, differential scanning calorimetry, dynamic mechanical analysis and scanning electron microscopy. The results showed that the mechanical properties and processability decreased with increasing GTR content. Although the interfacial compatibility was improved with a higher GTR reclamation degree, the TPE mechanical properties were still gradually decreasing. To improve on these results, PE‐g‐MAH was added to increase the GTR‐LLDPE interfacial interactions. The results showed improvement in terms of mechanical properties and processability, especially for compatibilized TPE based on RR (tensile strength increased from 3.34 to 4.82 MPa and elongation at break from 91% to 101%).

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Section: Introductionsupporting

confidence: 73%

Compatibilized thermoplastic elastomers based on highly filled polyethylene with ground tire rubber

Liu

Peng

Zhang

et al. 2022

J of Applied Polymer Sci

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“…Its susceptibility to solvents, hydrocarbon oils, and certain lubricants, all of which can cause damage. Furthermore, unlike silicone, it is not flame resistant and is not suggested for food applications [14,17].…”

Section: Epdmmentioning

confidence: 99%

“…According to the tensile results, it was observed that the rubber content is showing its effect by increasing elongations as we have more elastic properties in rubber and decreasing the modulus and tensile strength of the blend. The blend has good energy absorption capabilities with mechanical balance properties compared to pure rubber material [9,11,16,17].…”

Section: Tensile Testmentioning

confidence: 99%

Effect of Ground Tire Rubber on Mechanical Properties of Low Density Polyethylene

Mushtaq¹,

Muhammad²,

Uddin³

2021

Int. J. Membrane Sci. Techno.

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This research explores the effect of ground tire rubber (GTR) on the mechanical properties of LDPE. This thermoplastic-elastomer blend sets the composition of ground tire rubber and low-density polyethylene (LDPE/GTR). The blend was prepared in different proportions and was processed in a compression molding machine. The optimum operating conditions of the blend set to be 220℃ temperature and pressure varied from 150-200 bars. Different parts per hundred rubber (phr) samples were obtained under these conditions, including 1 phr, 2 phr, 3 phr, 4 phr, and 5 phr. After that, the mechanical properties of the blend were examined concerning various compositions. Different testing methods were used to determine the mechanical properties of the thermoplastic-elastomer blend, which include tensile strength, flexural strength, and Izod impact. The results obtained from these tests show that tensile strength and modulus decreases by increasing the rubber content. However, impact strength and percentage elongation increase by increasing the rubber content. This enhancement in impact and percentage elongation may be suitable for the applications in gymnasium mat and automobile industry.

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“…First, the elastomeric part must be ground, making ground tire rubber (GTR). This GTR is easy to handle, and it can be used to toughen different kinds of polymers, for example, thermoplastics [ 2 , 3 , 4 , 5 ], thermosets [ 6 , 7 ], and rubbers as well [ 8 , 9 , 10 , 11 ]. The problem with this kind of use is that the compatibility of GTR with the desired matrix is usually poor, hindering high performance.…”

Section: Introductionmentioning

confidence: 99%

Rubber Compounds from Devulcanized Ground Tire Rubber: Recipe Formulation and Characterization

Görbe,

Kohári,

Bárány

2024

Polymers

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In this study, our focus was on developing and investigating rubber recipes that are suitable for devulcanized ground tire rubber (dGTR). Devulcanized rubber has a powdery or sticky uncured rubber-like appearance depending on the extent of main-chain degradation that occurs with selective crosslinking scission. Still, it has a significantly shorter scorch time than a new rubber compound. Therefore, our primary goal was to slow down the vulcanization process of dGTR and improve its mechanical properties via recipe development. We formulated several recipes (sulfur-, peroxide-, and phenolic resin-based) and studied the vulcanization process and the main properties of the revulcanized rubber sheets. We observed that the vulcanization process could be altered with different vulcanization methods: using peroxide and vulcanizing resin extended the process significantly. Peroxide vulcanization also provided enhanced elongation compared to sulfuric systems. With a balance of properties in mind, we selected a semi-efficient sulfur-based recipe and studied the characteristics of natural rubber/dGTR mixtures with the help of plasticizer oils. We successfully replaced a notable portion of natural rubber with dGTR, maintaining its properties without much compromise.

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Ground tire rubber filled low-density polyethylene: The effect of particle size

Cited by 16 publications

References 31 publications

Compatibilized thermoplastic elastomers based on highly filled polyethylene with ground tire rubber

Compatibilized thermoplastic elastomers based on highly filled polyethylene with ground tire rubber

Effect of Ground Tire Rubber on Mechanical Properties of Low Density Polyethylene

Rubber Compounds from Devulcanized Ground Tire Rubber: Recipe Formulation and Characterization

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