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1537526 
Journal Article 
Reclamation of waste tyre rubber with nitrous oxide 
Dubkov, KA; Semikolenov, SV; Ivanov, DP; Babushkin, DE; Panov, GI; Parmon, VN 
2012 
1 
Polymer Degradation and Stability
ISSN: 0141-3910 
97 
7 
1123-1130 
WOS:000306388100007 
The reaction of tyre rubber crumb with nitrous oxide (N2O)
in an organic solvent at 180-230 degrees C and pressure of 3-5 MPa was studied. The process is
accompanied by controllable destruction of vulcanised rubber with the formation of a plastic
reclaim product consisting of a sol and gel fractions. The amount of the sol fraction increases
proportionally to the conversion of the rubber C=C bonds in the reaction with N2O and can be
regarded as a measure of the degree of vulcanisate destruction. The method is applicable to the
recycling of both rubber crumb and tyre chips. (C) 2012 Elsevier Ltd. All rights reserved. 
Scrap tires; Recycling; Reclaimed rubber; Nitrous oxide