One of the most significant features of BioVinyl compounds is their improved heat stability compared to conventional phthalate-plasticized compounds. Since overheating is a big problem with vinyls, stabilizers are generally used.
"But BioVinyl compounds are more heat stable so you can run the extrusion process faster or run it longer without a lot of degradation of the polymers," said Cappucci. Another effect of better heat stability is the reduced color change of the compounds made for weatherstripping and gasketing than standard vinyl compounds after accelerated weathering tests.
Based on life cycle analysis tests conducted by The Dow Chemical Company and reviewed by independent third parties, ECOLIBRIUM Bio-Based Plasticizers can help reduce greenhouse gas emissions by as much as 41 percent or 0.7 lb. of carbon dioxide emissions for every 1.0 lb. of compound made with DINP, says Cappucci.
The ECOLIBRIUM plasticizers are manufactured by Dow Electrical and Telecommunications, a unit of The Dow Chemical Company, using non-food plant byproducts. As the result of a recently announced joint collaboration agreement, Teknor Apex has the exclusive right to market flexible vinyl compounds containing the DOW ECOLIBRIUM Bio-Based Plasticizers in certain applications in North America. Those applications include consumer and industrial products, automotive components, certain medical devices, and certain wire and cable uses.
Teknor Apex has developed 80 custom BioVinyl compounds to date. The company also makes non-phthalate PVC compounds and DEHP-free PVC materials, and supplies versions of those compounds with low VOC (volatile organic compound) emissions.