scholarly journals Processing, Performance Properties, and Storage Stability of Ground Tire Rubber Modified by Dicumyl Peroxide and Ethylene-Vinyl Acetate Copolymers

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 4014
Author(s):  
Paulina Wiśniewska ◽  
Łukasz Zedler ◽  
Krzysztof Formela
Keyword(s):  
Gas Chromatography ◽  
Vinyl Acetate ◽  
Storage Stability ◽  
Ethylene Vinyl Acetate ◽  
Styrene Butadiene Rubber ◽  
Dicumyl Peroxide ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Performance Properties ◽  
And Storage

In this paper, ground tire rubber was modified with dicumyl peroxide and a variable content (in the range of 0–15 phr) of ethylene-vinyl acetate copolymers characterized by different vinyl acetate contents (in the range of 18–39 wt.%). Modification of ground tire rubber was performed via an auto-thermal extrusion process in which heat was generated during internal shearing of the material inside the extruder barrel. The processing, performance properties, and storage stability of modified reclaimed ground tire rubber were evaluated based on specific mechanical energy, infrared camera images, an oscillating disc rheometer, tensile tests, equilibrium swelling, gas chromatography combined with a flame ionization detector, and gas chromatography with mass spectrometry. It was found that the developed formulas of modified GTR allowed the preparation of materials characterized by tensile strengths in the range of 2.6–9.3 MPa and elongation at break in the range of 78–225%. Moreover, the prepared materials showed good storage stability for at least three months and satisfied processability with commercial rubbers (natural rubber, styrene-butadiene rubber).

Thermo-rheological behaviour and storage stability of ground tire rubber-modified bitumens

Fuel ◽  
2004 ◽  
Vol 83 (14-15) ◽  
pp. 2041-2049 ◽  
Author(s):  
F.J. Navarro ◽  
P. Partal ◽  
F. Martı́nez-Boza ◽  
C. Gallegos
Keyword(s):  
Storage Stability ◽  
Rheological Behaviour ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
And Storage

Crosslinking Kinetics of Blends of Ethylene Vinyl Acetate and Ground Tire Rubber

2009 ◽  
Vol 41 (2) ◽  
pp. 175-189 ◽  
Author(s):  
O. Bianchi ◽  
R. Fiorio ◽  
J.N. Martins ◽  
A.J. Zattera ◽  
C.H. Scuracchio ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Ethylene Vinyl Acetate ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Kinetics Of

scholarly journals Ground Tire Rubber Modified by Ethylene-Vinyl Acetate Copolymer: Processing, Physico-Mechanical Properties, Volatile Organic Compounds Emission and Recycling Possibility

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4669
Author(s):  
Łukasz Zedler ◽  
Paulina Burger ◽  
Shifeng Wang ◽  
Krzysztof Formela
Keyword(s):  
Mechanical Properties ◽  
Volatile Organic Compounds ◽  
Vinyl Acetate ◽  
Organic Compounds ◽  
Ethylene Vinyl Acetate ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Volatile Organic ◽  
Acetate Copolymer ◽  
Ethylene Vinyl Acetate Copolymer

Ground tire rubber (GTR) was reclaimed and modified with 10 phr of ethylene-vinyl acetate copolymer via low-temperature extrusion process. Processing, physico-mechanical properties, volatile organic compounds emission, and recycling possibility were investigated. In order to better understand the impact of used modifiers, their efficiency was compared with trans-polyoctenamer, which is an additive that is commercially dedicated to waste rubber recycling. The results showed that a relatively small amount of ethylene-vinyl acetate copolymer improves the mechanical properties of modified reclaimed GTR and also allows further recycling by multiple processing without the deterioration of performance after three cycles.

Polymer Foams Based on Low Density Polyethylene/Ethylene Vinyl Acetate/Ground Tire Rubber (LDPE/EVA/GTR): Influence of the GTR Particle Size and Content on the Cellular Morphology and Density of the Final Foamed Compounds

2018 ◽  
Vol 779 ◽  
pp. 64-70
Author(s):  
Florentino Soriano-Corral ◽  
José F. Hernández-Gámez ◽  
Lyndon H. I. Durón-Sánchez ◽  
Luis Francisco Ramos de Valle ◽  
Myriam Lozano-Estrada ◽  
...  
Keyword(s):  
Particle Size ◽  
Size Distribution ◽  
Cell Size ◽  
Vinyl Acetate ◽  
Ethylene Vinyl Acetate ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Cell Size Distribution ◽  
Tire Rubber ◽  
Ground Tire Rubber

Addition of different contents of ground tire rubber (GTR) of different particles size in crosslinked-foamed compounds based on low density polyethylene (LDPE)/ethylene vinyl acetate (EVA) was studied. Compounds were made by melt mixing in an internal mixer at 100°C and 60 rpm. Trigonox 145-45B as crosslinking agent, azodicarbonamide (ADC) as chemical blowing agent (CBA) and ZnO/SiO2as foaming co-agents, were used. GTR of 149, 74, and 44 μm particle size was incorporated as “cell nucleating agent”, each particle size at 5, 10, and 20 phr. Morphological parameters such as average cell size (d), cell size distribution and cellular density (NC) were evaluated from images acquired by scanning electron microscopy (SEM). The results obtained from the SEM characterization show a significant reduction ofd, a significance increment onNC, up to 5.81*105to 3.62*107cells/cm3and a better homogenization of the cell size distribution in the foamed compounds with high GTR contents of the smaller particle size.

scholarly journals Asphalt Incorporation with Ethylene Vinyl Acetate (EVA) Copolymer and Natural Rubber (NR) Thermoplastic Vulcanizates (TPVs): Effects of TPV Gel Content on Physical and Rheological Properties

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1397
Author(s):  
Nappaphan Kunanusont ◽  
Boonchai Sangpetngam ◽  
Anongnat Somwangthanaroj
Keyword(s):  
Storage Stability ◽  
Ethylene Vinyl Acetate ◽  
Softening Temperature ◽  
Plastic Waste ◽  
Gel Content ◽  
Modified Asphalt ◽  
C Storage ◽  
Thermoplastic Vulcanizates ◽  
Polymer Modified Asphalt ◽  
And Storage

Plastic waste has been incorporated with asphalt to improve the physical properties of asphalt and alleviate the increasing trend of plastic waste being introduced into the environment. However, plastic waste comes in different types such as thermoplastic or thermoset, which results in varied properties of polymer modified asphalt (PMA). In this work, four thermoplastic vulcanizates (TPVs) were prepared using different peroxide concentrations to produce four formulations of gel content (with varying extent of crosslinked part) in order to imitate the variation of plastic waste. All four TPVs were then mixed with asphalt at 5 wt% thus producing four formulations of PMA, which went through physical, rheological, and storage stability assessments. PMA with higher gel content possessed lower penetration and higher softening temperature, indicating physically harder appearance of PMA. Superpave parameters remained unchanged among different gel content PMA at temperatures of 64, 70, and 76 °C. PMA with any level of gel content had lower Brookfield viscosity than PMA without gel content at a temperature of 135 °C. Higher gel content resulted in shorter storage stability measured with greater different softening temperatures between top and bottom layers of PMA after 5 days of 163 °C storage. This study shows that asphalt with thermoset plastic waste is harder and easier to pave, thus making the non-recycling thermoset plastic waste more useful and friendly to the environment.

Development of methods improving storage stability of bitumen modified with ground tire rubber: A review

2017 ◽  
Vol 159 ◽  
pp. 272-279 ◽  
Author(s):  
Maciej Sienkiewicz ◽  
Kaja Borzędowska-Labuda ◽  
Artur Wojtkiewicz ◽  
Helena Janik
Keyword(s):  
Storage Stability ◽  
Tire Rubber ◽  
Ground Tire Rubber
Sign in / Sign up

Export Citation Format

Share Document