These additives modify the polymer by forming crosslinks (bridges) between individual polymer chains. Vulcanized materials are less sticky and have superior mechanical properties.
Rubber in its raw form starts as a liquid
and “has no "memory," meaning it will not retain its shape when formed. The process that makes rubber structurally sound and capable of holding form while remaining flexible is called vulcanization and was invented in the 19th century. This process adds sulfur and heat and carbon and "cures" the rubber so that it has the properties we are all familiar with in tires |
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The process starts with pure crumb rubber six mesh or smaller which is subsequently batch fed into a closed loop system in which it is combined with a proprietary and patented dry powder additive.
The mixture of the crumb and chemical additive is passed through a smooth roll mill at a specific pressure and friction ratio multiple times. The pressure and torsion of the mill in combination with the powder create our Devulcanized Rubber Particulate (DRP). DRP can then be mixed with virgin materials at ratios up to 80:20, depending on the specific technical parameters required of the end-compound. DRP does |
