Reclamation of waste tyre rubber with nitrous oxide

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• 作者：K.A. Dubkov ; ^{dubkov@catalysis.ru} ; S.V. Semikolenov ; D.P. Ivanov ; D.E. Babushkin ; G.I. Panov ; V.N. Parmon
• 关键词：Scrap tires ; Recycling ; Reclaimed rubber ; Nitrous oxide
• 刊名：Polymer Degradation and Stability
• 出版年：2012
• 出版时间：July, 2012
• 年：2012
• 卷：97
• 期：7
• 页码：1123-1130
• 全文大小：1556 K

文摘

The reaction of tyre rubber crumb with nitrous oxide (N₂O) in an organic solvent at 180-230?¡ãC 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 CC 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.