Chemistry of rubber processing and disposal. | Zendy

R. L. Bebb | Zendy

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Chemistry of rubber processing and disposal.

Author(s) -

R. L. Bebb

Publication year - 1976

Publication title -

environmental health perspectives

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.257

H-Index - 282

eISSN - 1552-9924

pISSN - 0091-6765

DOI - 10.1289/ehp.761795

Subject(s) - vulcanization , scrap , natural rubber , calendering , pyrolysis , compounding , chemistry , extrusion , molding (decorative) , sulfur , chemical engineering , waste management , organic chemistry , composite material , materials science , engineering

The major chemical changes during the processing of rubber occur with the breakdown in mastication and during vulcanization of the molded tire. There is little chemical change during the compounding, calendering, extrusion, and molding steps. Reclaiming is the process of converting scrap rubber into an unsaturated, processible product that can be vulcanized with sulfur. Pyrolysis of scrap rubber yields a complex mixture of liquids, gas, and residue in varying ratios dependent on the nature of the scrap and the conditions of pyrolysis.

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