Cryo-ground tire rubber was treated with the sulfur oxidizing bacterium Thiobacillus ferrooxidans in order to devulcanize the surface of the ground particles. The devulcanized rubber (15% (w/w)) was mixed with carbon black filled natural rubber, and subsequently vulcanized. The physical properties of the resulting material were examined. This study shows that the stress relaxation properties are improved due to the microbial treatment. The stress at break and swelling properties are also positively affected by this process.
Get full access to this article
View all access options for this article.
References
1.
VerbruggenM.A.L., van der DoesL. and NoordermeerJ.W.M., Rubber Chem. Technol., 72, 1999, p. 731
2.
WarnerW.C., Rubber Chem. Technol., 67, 1994, p. 559
3.
RyuH.W., ChoK.S., ChangY.K., KimS.D. and MoriT., J. Ferment. Bioeng., 80, 1995. p. 46
4.
KleinJ., van AfferdenM., PfeiferF. and SchachtS., Fuel Process Technol., 40, 1994, p. 297
5.
RomineR.A. and RomineM.F., Polymer Degrad. Stabil., 59, 1998, p. 353
6.
LöfflerM., StraubeG. and StraubeE., In: Proceedings of conference on Biohydrometallurgical Technologies, The Minerals, Metals and Materials Society. Jackson Hole, Wyoming, USA, 1993, p. 673
7.
LöfflerM., NeumanW., StraubeE. and StraubeG., Kautsch. Gummi. Kunstst. 48, 1995, p. 454
8.
ChristianssonM., StenbergB., WallenbergL.R. and HolstO., Biotechnol. Lett. 20, 1998, p. 637
9.
BredbergK., PerssonJ., ChristianssonM., StenbergB. and HolstO., Appl. Microbiol. Biotechnol. 55, 2001. p. 43
10.
ToboloskyA.V., Properties and structure of polymers, John Wiley & Sons, New York. 1960, p. 223
11.
BarnardD., LewisP.M., Oxidative ageing. In: Natural rubber science and technology, A.D. Roberts, Ed. Oxford University Press, Oxford. 1988, Chapter 13.
12.
ZyskaB.J., Microbial Biodeterioration, Academic Press Inc, New York. 1981, p. 323
13.
ChristianssonM., StenbergB. and HolstO., Res. Environ. Biotechnol. 3, 2000, p. 11
14.
GentA.G., Engineering with Rubber, how to design rubber components, Hanser Verlag, Munich, 1992
15.
CottenG.R. and BoonstraB.B., Rubber Chem. Technol., 40, 1967, p. 829
16.
LarssonL., OlssonG., HolstO. and KarlssonH.T., Appl. Environ. Microbiol. 56, 1990, p. 697
