Rice Hulls and Biodac as Antioxidants in WPC

Ground rice hulls, being added to HDPE, remarkably increases oxidative induction time (OIT) of the plastic (Table 3.23). Biodac also increases the OIT of 

TABLE 3.23 Effect of rice hulls and Biodac on the OIT (at 190°C) of an HDPE, processed on the Brabender laboratory extruder 

HDPE but not to that extent. Apparently, the shearing effect of Biodac in the extruder and the respective decrease of the OIT compensates the positive effect of the filler. 

910 (February 18, 1992). B.D. Goforth, C.L. Goforth, and J.G. Brooks. System for making synthetic wood products from recycled materials. 

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