| 摘要 |
A method produces polar-modified rubber and olefin thermoplastic waste by grafting during a grinding process, for treatment, usable as compatibility agents in various plastic blends and composites, without the disadvantages of known functionalized recycled plastics, particularly the mechanical characteristics that are insufficient for their use. The waste is simultaneously ground and graft-modified in a temperature range between 40° C. and 140° C., in one method step. Scrap parts of vulcanized elastomer or olefin thermoplastic are comminuted to a particle size diameter of approximately 4 and 8 mm. The waste should be sorted by type, if possible. The shredded material is mixed with at least one organic peroxide and an alpha,beta-ethylene compound possessing at least one unsaturated polar group. The mixture is simultaneously ground and grafted at a specified dwell time and temperature range to a particle size diameter <1 mm. Residual components and byproducts are removed via nitrogen flushing.
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