scholarly journals Devulcanization of ethylene‐propylene‐diene monomer rubber waste. Effect of diphenyl disulfide derivate as devulcanizing agent on vulcanization, and devulcanization process

2022 ◽  
pp. 52141
Author(s):  
Larissa Gschwind ◽  
Carmen‐Simona Jordan ◽  
Norbert Vennemann
Keyword(s):  
Ethylene Propylene Diene Monomer ◽  
Ethylene Propylene ◽  
Rubber Waste ◽  
Diphenyl Disulfide

scholarly journals Thermomechanical Devulcanisation of Ethylene Propylene Diene Monomer (EPDM) Rubber and Its Subsequent Reintegration into Virgin Rubber

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1116
Author(s):  
Dávid Zoltán Pirityi ◽  
Kornél Pölöskei
Keyword(s):  
Tensile Tests ◽  
Ethylene Propylene Diene Monomer ◽  
Cross Link ◽  
Rubber Mixture ◽  
Ethylene Propylene ◽  
Rubber Waste ◽  
Roll Mill ◽  
Link Density ◽  
Cross Link Density ◽  
Curing Agents

Rubber waste remains a challenge for material science because its covalently cross-linked structure hinders the establishment of the circular economy of rubber. Devulcanisation may provide a solution, as it converts rubber vulcanisates back into their original, uncured state. Devulcanised rubber may be revulcanised or incorporated into virgin rubber, thus waste is utilized and the use of primary resources is reduced at the same time. In this paper, we treated sulphur-cured EPDM (ethylene propylene diene monomer) rubber on a two-roll mill at various temperatures and frictions. We determined the effectiveness of devulcanisation via Horikx’s analysis, which suggested that low devulcanisation temperatures would result in a 50% decrease in cross-link density with minimal polymer degradation. The devulcanisate was recycled via two methods: (a) revulcanisation with extra curing agents, and (b) mixing it with various amounts of the original rubber mixture, preparing rubber samples with 25, 50, 75, and 100 wt% recycled content. Tensile tests revealed that the samples’ elastic properties were severely compromised at 75 and 100 wt% devulcanisate contents. However, tensile strength decreased only by 15% and 20% for revulcanisates containing 25% and 50% recycled rubber, respectively.

Utilization of fly ash acid residue as a reinforcing filler in ethylene propylene diene monomer rubber

2012 ◽  
Vol 129 (3) ◽  
pp. 1053-1059 ◽  
Author(s):  
Feng Luo ◽  
Shujuan Wang ◽  
Bing Xue ◽  
Yinshan Jiang ◽  
Cundi Wei
Keyword(s):  
Fly Ash ◽  
Ethylene Propylene Diene Monomer ◽  
Ethylene Propylene ◽  
Reinforcing Filler

Abrasion resistance of thermoplastic polyurethane materials blended with ethylene-propylene-diene monomer rubber

2008 ◽  
Vol 110 (3) ◽  
pp. 1851-1857 ◽  
Author(s):  
Jing Tan ◽  
Yu Mei Ding ◽  
Xu Tao He ◽  
Yong Liu ◽  
Ying An ◽  
...  
Keyword(s):  
Abrasion Resistance ◽  
Thermoplastic Polyurethane ◽  
Ethylene Propylene Diene Monomer ◽  
Ethylene Propylene
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