Influence of the Modification of Ground Truck Tyres as an Additive on the Properties of a Truck Tread Compound

Herrmann, Volker; Heinrich, A.

doi:10.1177/0307174x1704400501

Cited by 3 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, EPDM ground rubber is not available on a large scale. Adjustments of the recipes for better incorporation, compensation for the sulfur migration as well as the devulcanization of GTR are also planned [10,32,39]. The results of this study and others-which show quite different influences of GTR on rubber compounds, even on the same virgin rubber-emphasize that for every use case, an individual recipe and processing adjustment is needed.…”

Section: Discussionmentioning

confidence: 93%

“…Using GTR alone with magnetite and a crosslinking system creates a magnetorheological elastomer [31]. The modification of GTR through devulcanization or additives can improve the bonding between the matrix and GTR particles but cannot completely overcome the deterioration of the mechanical properties [5,8,[10][11][12][13][14][15][16][18][19][20][21][22][23][24][25][26][27]32].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ground Tire Rubber Particles as Substitute for Calcium Carbonate in an EPDM Sealing Compound

2023

View full text Add to dashboard Cite

Ground tire rubber (GTR) is a product obtained by grinding worn tire treads before retreading them or via the cryogenic or ambient temperature milling of end-of-life tires (ELTs). The aim of this study is to evaluate if calcium carbonate can be substituted by GTR and, if so, to what extent. Different types of ground tire rubber are incorporated in an EPDM (ethylene–propylene–diene–rubber) model compound as partial or complete substitutes of calcium carbonate. The raw compounds and the vulcanizates are characterized to identify the limits. In general, it is apparent that increasing amounts of GTR and larger particles degrade the mechanical properties. The GTR also influences the vulcanization kinetics by reducing the scorch time up to 50% and vulcanization time up to nearly 80%. This is significant for production processes. The compounds with one-third substitution with the smaller-particle-size GTR show mostly similar or even better properties than the reference.

show abstract

Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Ground Tire Rubber Particles as Substitute for Calcium Carbonate in an EPDM Sealing Compound

2023

View full text Add to dashboard Cite

show abstract

“…Herrmann et al [ 23 ] modified GTR with mercaptobenzothiazole (MBT) and sulfur by compounding in a fluid mixer. The same modification was carried out melting GTR blended with TOR.…”

Section: Introductionmentioning

confidence: 99%

Reactive Sintering of Ground Tire Rubber (GTR) Modified by a Trans-Polyoctenamer Rubber and Curing Additives

et al. 2020

View full text Add to dashboard Cite

The proposed method of ground tire rubber (GTR) utilization involves the application of trans-polyoctenamer rubber (TOR), a commercially available waste rubber modifier. The idea was to investigate the influence of various curing additives (sulfur, N-cyclohexyl-2-benzothiazole sulfenamide (CBS), dibenzothiazole disulfide (MBTS) and di-(2-ethyl)hexylphosphorylpolysulfide (SDT)) on curing characteristics, physico-mechanical, thermal, acoustic properties as well as the morphology of modified GTR, in order to evaluate the possibility of reclaiming GTR and the co-cross-linking between applied components. The results showed that the presence of the modifier without the addition of curing additives hinders the physico-mechanical properties of revulcanized GTR. The addition of SDT, CBS, MBTS and sulfur change the melting kinetics of TOR, indicating partial degradation and/or co-cross-linking between components. In the studied conditions, the best mechanical properties were obtained by the samples cured with sulfur. The morphology analysis, combined with the physico-mechanical results, indicated that when the surface of the GTR is more developed, obtained by the addition of TOR, the properties of the GTR improve.

show abstract

Mechanochemical devulcanization ofEPDMrubber waste. Correlation of process parameters with sol–gel analyses and revulcanization properties

Gschwind

Jordan

Vennemann

et al. 2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

Ethylene-propylene-diene rubber (EPDM) scrap was devulcanized in an internal mixer with varying amounts of dibenzamido diphenyl disulfide (DBD) at temperatures below 200 C. The devulcanization effect and sol-gel analyses of the devulcanizates, and the mechanical properties of the sulfur-cured revulcanizates were studied. Residual DBD was still present in the sol at 160 C and degraded DBD at 200 C. DBD affects the curing leading to poor properties. So, the temperature must be adjusted according to the DBD concentration to obtain a superior recyclate for sealing systems. At 0.4 wt% DBD, the degradation reaction was already complete at 120 C, but only 52% and 61% of the tensile strength σ and strain at break ε of the virgin material were achieved. At 160 C and 2 wt%, the degradation reaction was complete, and the DBD effect on properties was small; 65% and 86% of σ and ε were recovered, respectively. To prevent property degradation, 200 C was required at 3.9 wt% DBD, resulting in 97% and 95% of σ and ε, but only 70% of hardness.

show abstract

Influence of the Modification of Ground Truck Tyres as an Additive on the Properties of a Truck Tread Compound

Cited by 3 publications

References 3 publications

Ground Tire Rubber Particles as Substitute for Calcium Carbonate in an EPDM Sealing Compound

Ground Tire Rubber Particles as Substitute for Calcium Carbonate in an EPDM Sealing Compound

Reactive Sintering of Ground Tire Rubber (GTR) Modified by a Trans-Polyoctenamer Rubber and Curing Additives

Mechanochemical devulcanization ofEPDMrubber waste. Correlation of process parameters with sol–gel analyses and revulcanization properties

Contact Info

Product

Resources

About