What is reclaimed rubber?

Fax. mail. Reclaimed rubber is a type of rubber recycled from waste or worn-out manufactured rubber articles. It has become widely accepted as a vital raw material for rubber product industry, which possess processing and economic characteristics that are of great value in the compounding of natural and synthetic rubbers.

Is reactive extrusion a promising route for waste tire rubber devulcanization?

New strategies for waste tire rubber devulcanization based on patent analysis. Reclaimed rubbers properties in patents/literature vs. commercial products. Advantages and disadvantages of waste tire rubber devulcanization technologies. This work shows that reactive extrusion is promising route for rubber devulcanization.

How is reclaimed rubber extruded?

GTR, linear polymer and desulfurization aid (subcritical alcohol injected directly to barrel) are added to a co-rotating twin-screw extruder at temperature of 150–300 °C; the pressure of 0.48–8.6 MPa and the screw speed of 100–1000 rpm. Reclaimed rubber is cooled by water and dried.

What are the patented waste tire rubber devulcanization technologies?

This work presents the state-of-the-art in the patented waste tire rubber devulcanization technologies including dynamic desulfurization, reactive extrusion, microwave treatment, and also other less popular methods.

Why is reclaimed rubber important?

Reclaimed rubber is an important raw material for many rubber products manufactured these days. Adding reclaimed rubber in various rubber compounds not only provides advantage in low processing cost, but also is one way to solve an environmental problem of piling used tires in the sense of using recycled product to save the earth.

How to improve mechanical properties of reclaimed rubber products?

Decreasing the size of the GTR particles, as well as adding virgin rubber or various auxiliary agents are among the most recently used strategies for improving the mechanical properties of reclaimed rubber products (Wang et al., 2016a).