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Medical-Grade PVC Film Withstands Gamma Sterilization

Thu, 09/06/2012 - 10:16am

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A new family of calendered PVC films for medical applications incorporates a non-phthalate citrate plasticizer that is stable in applications sterilized by gamma irradiation, it was announced today by Teknor Apex Company.

Designated MF-165-J3R-79NT, the film grade is available in thicknesses from 0.006 to 0.020 in. (0.15 to 0.5 mm), widths up to 60 in. (1,525 mm), and slitting down to 2.0 in. (51 mm). The film exhibits a Shore A hardness of 81, specific gravity of 1.25, tensile strength of 2,700 psi (18.6 MPa), and elongation of 300%.

 “The new citrate-based film from Teknor Apex enables medical manufacturers to obtain the proven advantages of PVC over alternative materials while meeting requirements calling for plasticizers to be non-phthalate,” said Richard Vega, manager of the Teknor Apex Vinyl Division film calendaring facility at Industry, CA. “The fact that this film grade is also gamma-stable means that it can provide those PVC advantages even in uses calling for the most aggressive form of sterilization.”

In the calendering process used by Teknor Apex for producing the film, the company fuses flexible vinyl compound and passes it through a series of synchronized nip rolls. “The advantages of calendering include thickness uniformity, consistent physical properties, thermal stability, and the availability of various embossed finishes,” said Vega.

Teknor Apex Company
626-968-4656; www.teknorapex.com

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