Bio-Based Vinyls May Cost Less

Ann R. Thryft

April 17, 2012

1 Min Read
Bio-Based Vinyls May Cost Less

Vinyl compounds that incorporate bio-based plasticizers to make them flexible are equal or better in performance to their traditional counterparts based on petrochemicals, but may be more cost-effective. Custom plastics compounder Teknor Apex introduced the new materials at the NPE2012 show in Orlando, Fla.

The BioVinyl flexible vinyl compounds incorporate DOW ECOLIBRIUM bio-based plasticizers, which are phthalate-free. The vinyl compounds have a smaller carbon footprint than alternative plastics like polyolefins or polyurethanes, and may also be more cost-efficient than plant-based polymers.

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In tests conducted by Teknor Apex researchers on several application-tailored BioVinyl flexible vinyl compounds, the bio-based plasticizers showed 10 percent and 16 percent greater efficiency than standard DEHP and DINP plasticizers, respectively, Louis Cappucci, VP of Teknor Apex's vinyl division, told us. "This makes it possible to use less plasticizer per pound of compound, lowering costs. There are five or six other options for replacing phthalates, and many of them are expensive."

Typically, 30 percent of the compound by weight consists of plasticizers, 50 percent is PVC resin, and the other 20 percent consists of various custom ingredients, said Cappucci. Teknor Apex's BioVinyl compounds contain 35 percent or less petrochemical content. "Vinyl compounds that incorporate DOW ECOLIBRIUM bio-based plasticizers actually contain about 60 percent renewable resources, since half of the PVC polymer is derived from seawater."

Substituting the new plasticizers for conventional phthalates makes the carbon footprint of BioVinyl compounds much smaller than that of many plastics. Comparative data compiled by Teknor Apex indicates that CO2 emission equivalents of BioVinyl compounds is half that of polyolefin resins and even lower than that of bioplastic polylactic acid (PLA).

About the Author

Ann R. Thryft

Ann R. Thryft has written about manufacturing- and electronics-related technologies for Design News, EE Times, Test & Measurement World, EDN, RTC Magazine, COTS Journal, Nikkei Electronics Asia, Computer Design, and Electronic Buyers' News (EBN). She's introduced readers to several emerging trends: industrial cybersecurity for operational technology, industrial-strength metals 3D printing, RFID, software-defined radio, early mobile phone architectures, open network server and switch/router architectures, and set-top box system design. At EBN Ann won two independently judged Editorial Excellence awards for Best Technology Feature. She holds a BA in Cultural Anthropology from Stanford University and a Certified Business Communicator certificate from the Business Marketing Association (formerly B/PAA).

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