scholarly journals SBR Vulcanizates Filled with Modified Ground Tire Rubber

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3991
Author(s):  
Katarzyna Klajn ◽  
Tomasz Gozdek ◽  
Dariusz M. Bieliński ◽  
Mariusz Siciński ◽  
Magdalena Zarzecka-Napierała ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sulfuric Acid ◽  
Crosslink Density ◽  
Surface Activation ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Mechanical And Tribological Properties ◽  
Hybrid Treatment ◽  
The Cost ◽  
Trimethoxy Silane

Ground tire rubber (GTR) is used to decrease the cost of vulcanizates. However, insufficient interactions between GTR particles and rubber matrices make mechanical properties of vulcanizates containing GTR deteriorate. This paper compares original methods of GTR modification. The effects of surface activation of GTR by sulfuric acid (A), its modification by (3-mercaptopropyl)trimethoxy silane (M), or the hybrid treatment—combining both approaches (H), were analyzed in terms of surface energy, specific surface area and morphology of GTR particles. Vulcanizates containing virgin GTR were compared to the rubber filled with the modified GTR particles keeping the same amount of CB in the rubber mix, according to their crosslink density, mechanical and tribological properties. Contrary to the virgin GTR, the addition of modified GTR increases the stiffness of the vulcanizates. The highest changes have been observed for the samples filled with ca. 12 phr of the GTR modified with silane and ca. 25 phr of the GTR subjected to the hybrid treatment, representing the highest crosslink density of rubber vulcanizates filled with GTR. Furthermore, the addition of modified GTR, especially in the case of the samples where 10 phr of rubber was replaced, results in the significant lowering of friction but higher abrasive wear.

Sulfuric acid treatment of ground tire rubber and its effect on the mechanical and thermal properties of polypropylene composites

2017 ◽  
Vol 134 (21) ◽  
Author(s):  
Ernesto Hernández Hernández ◽  
José Francisco Hernández Gámez ◽  
Lorena Farías Cepeda ◽  
Esthela Judith Chávez Muñoz ◽  
Florentino Soriano Corral ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Sulfuric Acid ◽  
Acid Treatment ◽  
Mechanical And Thermal Properties ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Polypropylene Composites ◽  
Sulfuric Acid Treatment

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.

Effect of dicumyl peroxide and phenolic resin as a mixed curing system on the mechanical properties and morphology of TPVs based on HDPE/ground tire rubber

2014 ◽  
Vol 36 (10) ◽  
pp. 1907-1916 ◽  
Author(s):  
Maoyong He ◽  
Yingchun Li ◽  
Bing Qiao ◽  
Xinghui Ma ◽  
Jingjing Song ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Phenolic Resin ◽  
Dicumyl Peroxide ◽  
Tire Rubber ◽  
Ground Tire Rubber

Structural, thermal and physico-mechanical properties of polyurethane/brewers’ spent grain composite foams modified with ground tire rubber

2017 ◽  
Vol 108 ◽  
pp. 844-852 ◽  
Author(s):  
Krzysztof Formela ◽  
Aleksander Hejna ◽  
Łukasz Zedler ◽  
Marta Przybysz ◽  
Jacek Ryl ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Composite Foams ◽  
Spent Grain

Reusing ground tire rubber powder as thermoplastic elastomers with excellent superhydrophobicity and self-cleaning performance

2021 ◽  
pp. 147776062110194
Author(s):  
Xingshuo Zhang ◽  
Ruotao Feng ◽  
Zhaobo Wang
Keyword(s):  
Mechanical Properties ◽  
Superhydrophobic Surface ◽  
Adhesion Force ◽  
Weight Ratio ◽  
Thermoplastic Elastomers ◽  
Molding Process ◽  
Tire Rubber ◽  
Ground Tire Rubber ◽  
Optical Images ◽  
Self Cleaning

A simple, effective and inexpensive method was proposed to reuse ground tire rubber (GTR) powder by preparing a superhydrophobic surface via a molding process. The obtained superhydrophobic surface was based on low-density polyethylene (LDPE) / ground tire rubber (GTR) thermoplastic elastomers (TPEs) where the styrene-butadiene-styrene block copolymer (SBS) was used as compatibilizer and series sandpapers were used as templates. The mechanical properties, hydrophobic properties, surface morphology and self-cleaning property were investigated systematically. The results showed that both of the mechanical properties and superhydrophobicity could be greatly improved with a certain amount of SBS. The superhydrophobic surface based on molded LDPE/SBS/GTR (weight ratio = 40/15/60) TPE exhibited excellent superhydrophobicity (with a contact angle of 164.6° ± 3.0° and a tilt angle of 4.4° ± 1.9°). Furthermore, abundant tearing microstructure could be found obviously by morphology observation. Optical images indicated the surface possessed of low adhesion force and self-cleaning property.

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