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Development of Novel Recycling Technology for Automobile Rubber Waste
Technical Paper
2006-05-0126
Sector:
Language:
English
Abstract
In this study, a material recycling technology for automobile rubber waste has been newly developed using the continuous reactive processing method. In the process of producing reclaimed rubber, breakages of crosslinking points in the crosslinked rubber occur selectively under the controls of shear stress, reaction temperature, and internal pressure in a suitably designed twin screw extruder. Deodorization during the process has also become possible by the injection of high-pressure water. The reclaimed rubber based on automobile rubber waste generated from manufacturing products (e.g., weather strips, tires) shows excellent mechanical properties applicable to new rubber compounds. Furthermore, an enhanced rubber recycling process for producing thermoplastic elastomer (TPE) based on rubber waste has been established. The obtained TPE with good moldability and recyclability exhibits highly recoverable rubber elasticity and mechanical properties comparable to commercial TPE. The reclaimed rubber using this technology is currently being utilized for various automobile rubber parts in mass-produced motor vehicles.