EFFECTS OF CRYOGENIC TREATMENT ON THE PROPERTIES OF TYRE PRODUCTION WASTES


KARAAĞAÇ B., Deniz V., ŞEN M.

CHEMICKE LISTY, vol.105, no.5, pp.429-434, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 105 Issue: 5
  • Publication Date: 2011
  • Title of Journal : CHEMICKE LISTY
  • Page Numbers: pp.429-434

Abstract

It has not been reported any methodology in literature for recycling of calendared metallic fabric and green tyre wastes produced in tyre industry. They are either recycled after vulcanization or disposed by environmentally unfriendly methods. In this study, the conditions of cryogenic recycling of metallic fabric wastes from tyre manufacturing process and the possibility of reuse compound part on these wastes have been investigated. Solid CO(2) and liquid N(2) were used as coolants. Cold and brittle material was separated into two phases as rubber compound and steel by mechanical treatment. The changes in rheological, physical and mechanical properties of the compounds after recycling were studied. Adhesion strength, rheological and mechanical properties of compounds that obtained from the wastes were deteriorated by a maximum of 10 % with decreasing dispersion quality. It has been concluded that cryogenic technique can be used for recycling of reinforcing materials such as calendared metallic fabric and green tyre wastes in tyre industry without significant decrease in their commercial values.

It has not been reported any methodology in literature for recycling of calendared metallic fabric and green tyre wastes produced in tyre industry. They are either recycled after vulcanization or disposed by environmentally unfriendly methods. In this study, the conditions of cryogenic recycling of metallic fabric wastes from tyre manufacturing process and the possibility of reuse compound part on these wastes have been investigated. Solid CO(2) and liquid N(2) were used as coolants. Cold and brittle material was separated into two phases as rubber compound and steel by mechanical treatment. The changes in rheological, physical and mechanical properties of the compounds after recycling were studied. Adhesion strength, rheological and mechanical properties of compounds that obtained from the wastes were deteriorated by a maximum of 10 % with decreasing dispersion quality. It has been concluded that cryogenic technique can be used for recycling of reinforcing materials such as calendared metallic fabric and green tyre wastes in tyre industry without significant decrease in their commercial values.