Devulcanisation and reclaiming of tires and rubber by physical and chemical processes: A review

[en] Since their creation, tires have been constantly improved to fulfil the numerous applications they have been employed in. Although tires consisted of simple rubber bands in the late 20th century, nowadays tires are a highly more complex piece of technology. Due to this more complex structure induced by the presence of other components (like metals and textiles) and a wide variety of polymers used in tire manufacturing, recycling and reclaiming processes are constantly more difficult. Taking into account the global tire demand as well as the amount of rubber involved and their end-of-life fate is mandatory for a sustainable development. The aim of this review is to present and explore physical and chemical processes that are employed in order to recycle tire and reclaim rubber. Well settled techniques such as mechanical, thermo-mechanical, cryo-mechanical grinding and sulfide processes are presented as well as more sustainable technologies such as ionic liquid, eutectic solvents and microwave and catalysis.

Disciplines :

Chemistry

Author, co-author :

Bockstal, Lauris ; Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH

Berchem, Thomas ; Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH

Schmetz, Quentin ; Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH

Richel, Aurore ; Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > SMARTECH

Language :

English

Title :

Devulcanisation and reclaiming of tires and rubber by physical and chemical processes: A review

Publication date :

06 July 2019

Journal title :

Journal of Cleaner Production

ISSN :

0959-6526

eISSN :

1879-1786

Publisher :

Elsevier, Netherlands

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://www.sciencedirect.com/science/article/pii/S0959652619323881

Available on ORBi :

since 15 July 2019

Statistics

Number of views

157 (20 by ULiège)

Number of downloads

6 (2 by ULiège)

More statistics

Scopus citations^®

148

Scopus citations^®
without self-citations

148

OpenCitations

106

Bibliography

Abraham, E., Cherian, B., Elbi, P., Recent advances in the recycling of rubber waste. Fainleib, A., Grigoryeva, O., (eds.) Recent Developments in Polymer Recycling, 2011, Transworld Research Network, 47–100.
Adhikari, B., De, D., Maiti, S., Reclamation and recycling of waste rubber. Prog. Polym. Sci. 25 (2000), 909–948 https://doi.org/10.1016/S0079-6700(00)00020-4.
Alhassan, Y., Kumar, N., Bugaje, I.M., Catalytic upgrading of waste tire pyrolysis oil via supercritical esterification with deep eutectic solvents (green solvents and catalysts). J. Energy Inst. 89 (2016), 683–693 https://doi.org/10.1016/j.joei.2015.05.003.
Amari, T., Themelis, N.J., Wernick, I.K., Resource recovery from used rubber tires. Resour. Pol. 25 (1999), 179–188 https://doi.org/10.1016/S0301-4207(99)00025-2.
Aoudia, K., Azem, S., Aït Hocine, N., Gratton, M., Pettarin, V., Seghar, S., Recycling of waste tire rubber: microwave devulcanization and incorporation in a thermoset resin. Waste Manag. 60 (2017), 471–481 https://doi.org/10.1016/j.wasman.2016.10.051.
Appel, B.S., Adams, T.N., Roberts, M.J., Lange, W.F., Freiss, J.H., Einfeldt, C.T., Carnesi, M.C., Process for conversion of organic, waste, or low-value materials into useful products. US 8,809,606 B2 https://doi.org/10.1109/MOBIQ2007.4451054, 2014.
Asaro, L., Gratton, M., Seghar, S., Hocine, N.A., Recycling of rubber wastes by devulcanization. Resour. Conserv. Recycl. 133 (2018), 250–262 https://doi.org/10.1016/j.resconrec.2018.02.016.
Benko, D.A., Beers, R.N., Surface devulcanization of cured rubber crumb. U. S. Jpn. Outlook, 6, 2002 387,965 B1.
Benko, D.A., Beers, R.N., Lee, S., Clark, K.L., Devulcanization of cured rubber. U. S. Jpn. Outlook, 6, 2006 992,116 B2.
Bijarimi, M., Zulkafli, H., Beg, M.D.H., Mechanical properties of industrial tyre rubber compounds. J. Appl. Sci. 10 (2010), 1345–1348.
Bozkurt, P.A., Canel, M., Co-extraction of lignite and waste tire mixtures. Energy Sources, part a recover. Util. Environ. Eff. 36 (2014), 2296–2304 https://doi.org/10.1080/15567036.2013.807320.
Bussière, P.O., Gardette, J.L., Lacoste, J., Baba, M., Characterization of photodegradation of polybutadiene and polyisoprene: chronology of crosslinking and chain-scission. Polym. Degrad. Stabil. 88 (2005), 182–188 https://doi.org/10.1016/j.polymdegradstab.2004.02.013.
Cao, W., Study on properties of recycled tire rubber modified asphalt mixtures using dry process. Constr. Build. Mater. 21 (2007), 1011–1015 https://doi.org/10.1016/j.conbuildmat.2006.02.004.
Cevasco, G., Chiappe, C., Are ionic liquids a proper solution to current. Green Chem. 16 (2014), 2375–2385 https://doi.org/10.1039/c3gc42096e.
Chatziaras, N., Psomopoulos, C.S., Themelis, N.J., Use of waste derived fuels in cement industry: a review. Manag. Environ. Qual. An Int. J. 27 (2016), 178–193 https://doi.org/10.1108/MEQ-01-2015-0012.
Cialone, A.M., Waznys, P.J., Meckert, G.W., Process and apparatus for manufacturing crum and powder rubber. U. S. Jpn. Outlook, 7, 2008 445,170 B2.
Colom, X., Faliq, A., Formela, K., Cañavate, J., FTIR spectroscopic and thermogravimetric characterization of ground tyre rubber devulcanized by microwave treatment. Polym. Test. 52 (2016), 200–208 https://doi.org/10.1016/j.polymertesting.2016.04.020.
de Sousa, F.D.B., Scuracchio, C.H., Hu, G.H., Hoppe, S., Devulcanization of waste tire rubber by microwaves. Polym. Degrad. Stabil. 138 (2017), 169–181 https://doi.org/10.1016/j.polymdegradstab.2017.03.008.
De, Debapriya, De, Debasish, Processing and material characteristics of a reclaimed ground rubber tire reinforced styrene butadiene rubber. Mater. Sci. Appl. 02 (2011), 486–495 https://doi.org/10.4236/msa.2011.25066.
De, Debapriya, De, Debasish, Singharoy, G.M., Reclaiming of ground rubber tire by a novel reclaiming agent. I. Virgin natural rubber/reclaimed GRT vulcanizates. Polym. Eng. Sci. 47 (2007), 1091–1100 https://doi.org/10.1002/pen.20790.
De, D., Maiti, S., Adhikari, B., Reclaiming of rubber by a renewable resource material (RRM). III. Evaluation of properties of NR reclaim. J. Appl. Polym. Sci. 75 (2000), 1493–1502 https://doi.org/10.1002/(SICI)1097-4628(20000321)75:12<1493::AID-APP8>3.0.CO;2-U.
Delor-Jestin, F., Lacoste, J., Barrois-Oudin, N., Cardinet, C., Lemaire, J., Photo-, thermal and natural ageing of ethylene-propylene-diene monomer (EPDM) rubber used in automotive applications. Influence of carbon black, crosslinking and stabilizing agents. Polym. Degrad. Stabil. 67 (2000), 469–477 https://doi.org/10.1016/S0141-3910(99)00147-0.
Dubkov, K.A., Semikolenov, S.V., Ivanov, D.P., Babushkin, D.E., Panov, G.I., Parmon, V.N., Reclamation of waste tyre rubber with nitrous oxide. Polym. Degrad. Stabil. 97 (2012), 1123–1130 https://doi.org/10.1016/j.polymdegradstab.2012.04.006.
ETRMA. End-of-life Tyre Report. Tyre and Rubber Recycling Magazine., 2015.
Evans, R., Evans, A., The composition of a tyre: typical components. 2006, The Waste & Resources Action Programme.
Fan, L., Reza Shafie, M., Devulcanized rubber and methods. U. S. Jpn. Outlook, 7, 2010 767,722 B2.
Fan, L., Reza Shafie, S., Devulcanized rubber and methods. U. S. Jpn. Outlook, 8, 2013 445,553 B2.
Feng, W., Isayev, A.I., Continuous ultrasonic devulcanization of unfilled butyl rubber. J. Appl. Polym. Sci. 94 (2004), 1316–1325 https://doi.org/10.1002/app.21103.
Feng, W., Isayev, A.I., Recycling of tire-curing bladder by ultrasonic devulcanization. Polym. Eng. Sci. 46 (2006), 8–18 https://doi.org/10.1002/pen.20449.
Ferraz, C.P., Autenrieth, B., Frey, W., Buchmeiser, M.R., Ionic Grubbs – Hoveyda complexes for biphasic ring- opening metathesis polymerization in ionic liquids: access to low metal content polymers. ChemCatChem 6 (2014), 191–198 https://doi.org/10.1002/cctc.201300751.
Formela, K., Hejna, A., Zedler, Ł., Colom, X., Cañavate, J., Microwave treatment in waste rubber recycling – recent advances and limitations. Express Polym. Lett. 13 (2019), 565–588.
Formela, K., Cysewska, M., Efficiency of thermomechanical reclaiming of ground tire rubber conducted in counter-rotating and co-rotating twin screw extruder. Polimery/Polymers 59 (2014), 231–238 https://doi.org/10.14314/polimery.2014.231.
Garcia, P.S., de Sousa, F.D.B., de Lima, J.A., Cruz, S.A., Scuracchio, C.H., Devulcanization of ground tire rubber: physical and chemical changes after different microwave exposure times. Express Polym. Lett. 9 (2015), 1015–1026 https://doi.org/10.3144/expresspolymlett.2015.91.
Ghorai, S., Bhunia, S., Roy, M., De, D., Mechanochemical devulcanization of natural rubber vulcanizate by dual function disulfide chemicals. Polym. Degrad. Stabil. 129 (2016), 34–46 https://doi.org/10.1016/j.polymdegradstab.2016.03.024.
Ghosh, J., Ghorai, S., Bhunia, S., Roy, M., De, D., The role of devulcanizing agent for mechanochemical devulcanization of styrene butadiene rubber vulcanizate. Polym. Eng. Sci. 58 (2018), 74–85 https://doi.org/10.1002/pen.24533.
Ghosh, P., Katare, S., Patkar, P., Caruthers, J.M., Venkatasubramanian, V., Sulfur vulcanization of natural rubber for benzothiazole accelerated formulations: from reactions mechanisms to a rational kinetic model. Rubber Chem. Technol. 76 (2003), 592–693.
Giray, E.S., Sönmez, Ö., Supercritical extraction of scrap tire with different solvents and the effect of tire oil on the supercritical extraction of coal. Fuel Process. Technol. 85 (2004), 251–265 https://doi.org/10.1016/S0378-3820(03)00200-5.
Hirayama, D., Saron, C., Chemical modifications in styrene-butadiene rubber after microwave devulcanization. Ind. Eng. Chem. Res. 51 (2012), 3975–3980 https://doi.org/10.1021/ie202077g.
Hong, C.K., Isayev, A.I., Continuous ultrasonic devulcanization of carbon black- filled NR vulcanizates. J. Appl. Polym. Sci. 79 (2001), 2340–2348 https://doi.org/10.1002/app.10033.
Isayev, A.I., Kim, S.H., Levin, V.Y., Superior mechanical properties of reclaimed SBR with bimodal network. Rubber Chem. Technol. 70 (1997), 194–201 https://doi.org/10.5254/1.3538424.
Isayev, A.I., Chen, J., Tukachinsky, A., Novel ultrasonic technology for devulcanization of waste rubbers. Rubber Chem. Technol. 68 (1995), 267–280.
Isayev, A.I., Tukachinsky, A., Schworn, D., Devulcanization of waste tire rubber by powerful ultrasound. Rubber Chem. Technol. 69 (1995), 92–103.
Isayev, A.I., Liang, T., Lewis, T.M., Effect of particle size on ultrasonic devulcanization of tire rubber in twin-screw extruder. Rubber Chem. Technol. 87 (2014), 86–102 https://doi.org/10.5254/RCT.13.87926.
Isayev, A.I., Yushanov, S.P., Kim, S.-H.H., Levin, V.Y., Ultrasonic devulcanization of waste rubbers: experimentation and modeling. Rheol. Acta 35 (1996), 616–630 https://doi.org/10.1007/BF00396511.
Jana, G.K., Das, C.K., Recycling natural rubber vulcanizates through mechanochemical devulcanization. Macromol. Res. 13 (2005), 30–38 https://doi.org/10.1007/BF03219012.
Jiang, K., Shi, J., Ge, Y., Zou, R., Yao, P., Li, X., Zhang, L., Complete devulcanization of sulfur-cured butyl rubber by using supercritical carbon dioxide. J. Appl. Polym. Sci. 127 (2013), 2397–2406 https://doi.org/10.1002/app.37542.
Johnston, S.T., Massey, J., von Meerwall, E., Kim, S.H., Levin, V.Y., Isayev, a. I., Ultrasound devulcanization of SBR: molecular mobility of gel and sol. Rubber Chem. Technol. 70 (1997), 183–193 https://doi.org/10.5254/1.3538423.
Joseph, A.M., George, B., Madhusoodanan, K.N., Alex, R., Current status of sulphur vulcanization and devulcanization chemistry: process of vulcanization. Rubber Sci. 28 (2015), 82–121.
Kim, J.K., Saha, P., Thomas, S., Haponiuk, J.T., Aswathi, M.K., Rubber Recycling, Green Chemistry Series. 2019, The Royal Society of Chemistry https://doi.org/10.1039/9781788013482.
Klingensmith, B., Recycling, production and use of reprocessed rubbers. Rubber World, 203, 1991, 16.
Kojima, M., Kohjiya, S., Ikeda, Y., Role of supercritical carbon dioxide for selective impregnation of decrosslinking reagent into isoprene rubber vulcanizate. Polymer (Guildf)., 46, 2005 2016–2019 https://doi.org/10.1016/j.polymer.2004.12.053.
Kojima, M., Tosaka, M., Ikeda, Y., Chemical recycling of sulfur-cured natural rubber using supercritical carbon dioxide. Green Chem., 6, 2004, 84 https://doi.org/10.1039/b314137c.
Kojima, M., Tosaka, M., Ikeda, Y., Kohjiya, S., Devulcanization of carbon black filled natural rubber using supercritical carbon dioxide. J. Appl. Polym. Sci. 95 (2005), 137–143 https://doi.org/10.1002/app.20806.
Kovalak, R.R., Hunt, L.K., Process for devulcanization of cured rubbers. U. S. Jpn. Outlook, 6, 2003 548,560 B1.
Koy, M., Altmann, H.J., Autenrieth, B., Frey, W., Buchmeiser, M.R., Grubbs – Hoveyda type catalysts bearing a dicationic N -heterocyclic carbene for biphasic olefin metathesis reactions in ionic liquids. Beilstein J. Org. Chem. 11 (2015), 1632–1638 https://doi.org/10.3762/bjoc.11.178.
Levin, V.Y., Kim, S.H., Isayev, A.I., Vulcanization of ultrasonically devulcanized SBR elastomers. Rubber Chem. Technol. 70 (1997), 120–128 https://doi.org/10.5254/1.3538412.
Lewandowski, W.M., Januszewicz, K., Kosakowski, W., Efficiency and proportions of waste tyre pyrolysis products depending on the reactor type — a review. J. Anal. Appl. Pyrolysis 140 (2019), 25–53 https://doi.org/10.1016/j.jaap.2019.03.018.
Li, X., Deng, X.-Q., Dong, C., Effect of temperature on devulcanization of waste sidewall rubber by supercritical ethanol. J. Braz. Chem. Soc. 29 (2018), 2169–2179.
Lindenmuth, B.E., An overview of tire technology. The Pneumatic Tire, 2006, 1–27 https://doi.org/10.1109/54.970421.
Liu, H.S., Mead, J.L., Stacer, R.G., Environmental impacts of recycled rubber in light fill applications. Summ. Eval. Execist. Lit., 1998, 1–17.
Marc, M., Devulcanisation of rubber and other elastomers. U. S. Jpn. Outlook, 8, 2013 357,726 B2.
Marc, M., Devulcanization of rubber and other elastomers. U. S. Jpn. Outlook, 8, 2013 470,897 B2.
Markov, V.M., Drozdovski, V.F., Reprocessing of Tires and Rubber Wastes. 1991, Ellis Horw, New York.
Martinez, J.D., Puy, N., Murillo, R., Garcia, T., Navarro, M.V., Mastral, A.M., Waste tyre pyrolysis – a review. Renew. Sustain. Energy Rev. 23 (2013), 179–213 https://doi.org/10.1016/j.rser.2013.02.038.
Mohaved, S.O., Ansarifar, A., Nezhad, S.K., Atharyfar, S., A novel industrial technique for recycling ethylene-propylene-diene waste rubber. Polym. Degrad. Stabil. 111 (2015), 114–123 https://doi.org/10.1016/j.polymdegradstab.2014.11.003.
Molanorouzi, M., Mohaved, S.O., Reclaiming waste tire rubber by an irradiation technique. Polym. Degrad. Stabil. 128 (2016), 115–125 https://doi.org/10.1016/j.polymdegradstab.2016.03.009.
Moore, C.G., Structural characterization of vulcanizates. Part IV. Use of triphenylphosphine and sodium di-n-butyl phosphite. J. Appl. Polym. Sci. 8 (1983), 1957–1983.
Moore, C.G., Trego, B.R., Structural characterization of vulcanizates. Part II. Use of triphenylphosphine to determine the structures of sulfur linkages in unaccelerated natural rubber-sulfur vulcanizate networks. J. Appl. Polym. Sci. 5 (1961), 299–302.
Mouawia, A., Nourry, A., Gaumont, A.C., Pilard, J.F., Dez, I., Controlled metathetic depolymerization of natural rubber in ionic liquids: from waste tires to telechelic polyisoprene oligomers. ACS Sustain. Chem. Eng. 5 (2017), 696–700 https://doi.org/10.1021/acssuschemeng.6b01777.
Myers, R.D., Nicholson, P., Macleod, J.B., Moir, M.E., Rubber devulcanization process. U. S. Jpn. Outlook, 5, 1997 602,186 https://doi.org/10.1016/j.(73.
Myhre, M., Saiwari, S., Dierkes, W., Noordermeer, J., Rubber Recycling: Chemistry, Processing, and Applications. Rubber Chem. Technol 85 (2012), 408–449 https://doi.org/10.5254/rct.12.87973.
Nadal, M., Rovira, J., Díaz-ferrero, J., Schuhmacher, M., Domingo, J.L., Human exposure to environmental pollutants after a tire landfill fire in Spain: health risks. Environ. Int. 97 (2016), 37–44 https://doi.org/10.1016/j.envint.2016.10.016.
Nicodème, T., Berchem, T., Jacquet, N., Richel, A., Thermochemical conversion of sugar industry by-products to biofuels. Renew. Sustain. Energy Rev. 88 (2018), 151–159 https://doi.org/10.1016/j.rser.2018.02.037.
Novotny, D.S., Marsh, R.L., Masters, F.C., Tally, D.N., Microwave devulcanization of rubber. U. S. Jpn. Outlook, 4(104), 1978 205 https://doi.org/10.1016/j.(73.
Park, Y., Hool, J.N., Curtis, C.W., Roberts, C.B., Depolymerization of styrene-butadiene copolymer in near-critical and supercritical water. Ind. Eng. Chem. Res. 40 (2001), 756–767 https://doi.org/10.1021/ie000502l.
Pelofsky, A.H., Rubber reclamation using ultrasonic energy. U. S. Jpn. Outlook, 3, 1973 725,314.
Presti, D. Lo, Recycled Tyre Rubber Modified Bitumens for road asphalt mixtures: a literature review q. Constr. Build. Mater. 49 (2013), 863–881 https://doi.org/10.1016/j.conbuildmat.2013.09.007.
Price, W., Smith, E.D., Waste tire recycling: environmental benefits and commercial challenges. Int. J. Technol. Manag. 6 (2006), 362–374.
Rahimi, S.R., Nikbin, I.M., Allahyari, H., Habibi, T.S., Sustainable approach for recycling waste tire rubber and polyethylene terephthalate (PET) to produce green concrete with resistance against sulfuric acid attack. J. Clean. Prod. 126 (2016), 166–177 https://doi.org/10.1016/j.jclepro.2016.03.074.
Rajan, V.V., Dierkes, W.K., Joseph, R., Noordermeer, J.W.M., Recycling of NR based cured latex material reclaimed with 2,2’-dibenzamidodiphenyldisulphide in a truck tire tread compound. J. Appl. Polym. Sci. 102 (2006), 4194–4206 https://doi.org/10.1002/app.24563.
Ramarad, S., Khalid, M., Ratnam, C.T., Chuah, A.L., Rashmi, W., Progress in Materials Science Waste tire rubber in polymer blends: a review on the evolution, properties and future. J. Prog. Mater. Sci. 72 (2015), 100–140 https://doi.org/10.1016/j.pmatsci.2015.02.004.
Reschner, K., Scrap tire recycling - a summary of prevalent disposal and recycling methods. Scrap Tire Recycl. Eur., 16, 2008 https://doi.org/10.2172/491404.
Rooj, S., Basak, G.C., Maji, P.K., Bhowmick, A.K., New route for devulcanization of natural rubber and the properties of devulcanized rubber. J. Polym. Environ. 19 (2011), 382–390 https://doi.org/10.1007/s10924-011-0293-5.
Sadaka, F., Campistron, I., Laguerre, A., Pilard, J.F., Controlled chemical degradation of natural rubber using periodic acid: application for recycling waste tyre rubber. Polym. Degrad. Stabil. 97 (2012), 816–828 https://doi.org/10.1016/j.polymdegradstab.2012.01.019.
Saleh, T.A., Gupta, V.K., Processing methods, characteristics and adsorption behavior of tire derived carbons: A review. Adv. Colloid Interface Sci. 211 (2014), 93–101 https://doi.org/10.1016/j.cis.2014.06.006.
Saville, B., Watson, A.A., Structural characterization of sulfur-vulcanized rubber networks. Rubber Chem. Technol. 40 (1967), 100–148.
Scuracchio, C.H., Waki, D.A., Da Silva, M.L.C.P., Thermal analysis of ground tire rubber devulcanized by microwaves. J. Therm. Anal. Calorim. 87 (2007), 893–897 https://doi.org/10.1007/s10973-005-7419-8.
Seghar, S., Aït Hocine, N., Mittal, V., Azem, S., Al-Zohbi, F., Schmaltz, B., Poirot, N., Devulcanization of styrene butadiene rubber by microwave energy: effect of the presence of ionic liquid. Express Polym. Lett. 9 (2015), 1076–1086 https://doi.org/10.3144/expresspolymlett.2015.97.
Selker, M.L., Sulfur linkage in vulcanized rubber. Reaction of methyl iodide with sulfur compounds. Rubber Chem. Technol., 22, 1949, 8.
Selker, M.L., Kemp, A.R., Sulfur linkage in vulcanized rubbers. Ind. Eng. Chem. 36 (1944), 16–28.
Shim, S.E., Isayev, a. I., Ultrasonic devulcanization of precipitated silica-filled silicone rubber. Rubber Chem. Technol. 74 (2001), 303–316 https://doi.org/10.5254/1.3544952.
Shulman, V.L., Tire recycling. Waste, 2019, Elsevier Inc., Brussels, 489–515 https://doi.org/10.1016/B978-0-12-815060-3.00026-8.
Shulman, V.L., Tyre recycling. Waste A Handbook for Management, 2011, Elsevier Inc., Brussels, 297–320 https://doi.org/10.1016/B978-0-12-381475-3.10021-X.
Si, H., Chen, T., Zhang, Y., Effects of high shear stress on the devulcanization of ground tire rubber in a twin-screw extruder. J. Appl. Polym. Sci. 128 (2013), 2307–2318 https://doi.org/10.1002/app.38170.
Siddique, R., Khatib, J., Kaur, I., Use of recycled plastic in concrete: a review. Waste Manag. 28 (2008), 1835–1852 https://doi.org/10.1016/j.wasman.2007.09.011.
Smith, G.F., Klingensmith, W.H., Tires as a source and consumer for recycled rubber. Rubber Division Meeting, 1990.
Smith, R.F., Boothroyd, S.C., Thompson, R.L., Khosravi, E., A facile route for rubber breakdown via cross metathesis reactions. Green Chem. 18 (2016), 3448–3455 https://doi.org/10.1039/C5GC03075G.
Stowe, D., Recycling of solid waste in ionic liquid media. U. S. Jpn. Outlook, 2016 9,303,134 B2.
Studebaker, M.L., Lithium aluminium hydride analysis of sulfur-cured vulcanizates. Rubber Chem. Technol. 43 (1970), 624–650.
Tao, G., He, Q., Xia, Y., Jia, G., Yang, H., Ma, W., The effect of devulcanization level on mechanical properties of reclaimed rubber by thermal-mechanical shearing devulcanization. J. Appl. Polym. Sci. 129 (2013), 2598–2605 https://doi.org/10.1002/app.38976.
Thaicharoen, P., Thamyongkit, P., Poompradub, S., Thiosalicylic acid as a devulcanizing agent for mechano-chemical devulcanization. Korean J. Chem. Eng. 27 (2010), 1177–1183 https://doi.org/10.1007/s11814-010-0168-9.
Turer, A., Recycling of scrap tires. Material recycling. Trends Perspect., 2012, 195–212.
Tzoganakis, C., Method of modifying crosslinked rubber. U. S. Jpn. Outlook, 2003 2003/0125401.
Vorobyev, L.R., Bosnik, V.B., Method of devulcanization of sulfur-cured rubber. U. S. Jpn. Outlook, 9, 2018 982,107 B1.
Vygodskii, Y.S., Shaplov, A.S., Lozinskaya, E.I., Filippov, O.A., Shubina, E.S., Bandari, R., Buchmeiser, M.R., Ring-opening metathesis polymerization ( ROMP ) in ionic liquids: scope and limitations. Macromolecules 39 (2006), 7821–7830 https://doi.org/10.1021/ma061456p.
Walvekar, R., Kunju, K., Saputra, R., Siddiqui, K., Ramarad, S., Parametric study for devulcanization of waste tire rubber utilizing deep eutectic solvent (DES). MATEC Web Conf., 152, 2018 https://doi.org/10.1051/matecconf/201815201005.
Wang, X., Shi, C., Zhang, L., Zhang, Y., Effects of shear stress and subcritical water on devulcanization of styrene-butadiene rubber based ground tire rubber in a twin-screw extruder. J. Appl. Polym. Sci. 130 (2013), 1845–1854 https://doi.org/10.1002/app.39253.
WBCSD. A Global State of Knowledge on Collection Rates, Recovery Routes, and Management Methods. 2018.
Yazdani, H., Karrabi, M., Ghasmi, I., Azizi, H., Devulcanization of waste tires using a twin-screw extruder: the effects of processing conditions. J. Vinyl Addit. Technol. 21 (2009), 129–133 https://doi.org/10.1002/vnl.
Yehia, A.A., Ismail, M.N., Hefny, Y.A., Abdel-Bary, E.M., Mull, M.A., Mechano-chemical reclamation of waste rubber powder and its effect on the performance of NR and SBR vulcanizates. J. Elastomers Plastics 36 (2004), 109–123 https://doi.org/10.1177/0095244304039896.
Yun, J., Yashin, V.V., Isayev, A.I., Ultrasonic devulcanization of carbon black-filled ethylene propylene diene monomer rubber. J. Appl. Polym. Sci. 91 (2004), 1646–1656 https://doi.org/10.1002/app.13320.
Yun, J., Oh, J.S., Isayev, A.I., Ultrasonic devulcanization reactors for recycling of grt: comparative study. Rubber Chem. Technol. 74 (2001), 317–330 https://doi.org/10.5254/1.3544953.
Zanchet, A., Carli, L.N., Giovanela, M., Brandalise, R.N., Crespo, J.S., Use of styrene butadiene rubber industrial waste devulcanized by microwave in rubber composites for automotive application. Mater. Des. 39 (2012), 437–443 https://doi.org/10.1016/j.matdes.2012.03.014.
Zanchet, A., Carli, L.N., Giovanela, M., Crespo, J.S., Scuracchio, C.H., Nunes, R.C.R., Characterization of microwave-devulcanized composites of ground SBR scraps. J. Elastomers Plastics 41 (2009), 497–507 https://doi.org/10.1177/0095244309345411.
Zhao, Q., Gao, J., Aging of ethylene–propylene–diene monomer (EPDM) in artificial weathering environment. Polym. Degrad. Stabil. 92 (2007), 1841–1846 https://doi.org/10.1016/j.polymdegradstab.2007.07.001.