Viton FreeFlow Z200 Technical Datasheet

Technical Information • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Rev. 3, February 2008 Viton® FreeFlow™ Z200 and Z210 Description Viton® FreeFlow™ Z200 and Z210 are process aids for polyolefins that provide outstanding performance through the full range of polyolefin processing conditions to eliminate melt fracture, lower extrusion pressure, reduce amperage and torque, and reduce die buildup. The two products differ only in the viscosity of the fluoroelastomer component. Both Z200 and Z210 take advantage of proprietary large-particle technology to provide a highly efficient process aid that performs under a wide variety of extruder conditions, and with formulations that cause other process aids to function marginally. Z200 and Z210 combine high viscosity fluoroelastomer with a non-blooming, thermally stable, proprietary interfacial agent to control the fluoroelastomer particle size delivered to the die. The resulting large particles of fluoroelastomer coat internal die surfaces more quickly, and with lower dosage levels, than do conventional process aids. Z200 is best suited for the most aggressive mixing situations, such as: • Direct dosage during production of gas phase LLDPE (1.0 MI or less) • Low concentration masterbatches (typically, less than 2% process aid) in LLDPE carrier (5 MI or less) • Blown film extrusion using fractional MI LLDPE, particularly with high pigment or anti-block loadings • Extrusion under conditions that promote mixing, such as high backpressure (from narrow die gaps or tight screenpacks), or high shear screw elements (e.g., Maddock tips). Z210 is best suited for applications involving moderate mixing conditions, such as: • Dosage during production of solution LLDPE (either direct or via masterbatch) • High concentration masterbatches (typically, more than 2% process aid), particularly with LDPE carrier • Blown film using 1 to 3 MI LLDPE, or LL/LD blends containing more than 30% LD • Extrusion under low shear mixing conditions Advantages • Improved rates of conditioning during start-up of new lines or purged systems • Improved performance on difficult to condition lines or with difficult formulations without the need for high additive levels often required with other process aids • Improved economics • Excellent thermal stability (up to 300°C) for cast film lines where polyethylene glycol based process aids may degrade • Improved performance in masterbatches containing pigments • Improved resistance to interactions • Approved for food contact and potable water appliances Formulation Guidelines To assist in resin formulation, the following can be used as a general guide: Elimination of Sharkskin Melt Fracture In standard film resins, ppm 300–500 In heavily filled or pigmented film, ppm 500–800 Reduction of die buildup, ppm 50–150 Levels are parts per million Viton® FreeFlow™ Z200 or Z210 These numbers are starting points for formulation. The actual level required depends on many factors. Typical Physical Properties Appearance White, free-flowing powder Packaging 20 kg bag in box custom bulk packaging upon request Shelf Life, yr 4* * Normal storage conditions—dry, unopened, temperature below 27°C (80°F) For further information please contact one of the addresses below, or visit us at our website at www.dupontelastomers.com/viton European Headquarters — Geneva Tel. +41-22-717-4000 Global Headquarters — Wilmington, DE USA Tel. +1-800-853-5515 +1-302-792-4000 Fax +41-22-717-4001 Fax +1-302-792-4450 South & Central America Headquarters — Brazil Tel. +55-11-4166-8978 Fax +55-11-4166-8989 Japan Headquarters — Tokyo Tel. +81-3-6402-6300 Asia Pacific Headquarters — Singapore Tel. +65-6275-9383 Fax +65-6275-9395 Fax +81-3-6402-6301 The information set forth herein is furnished free of charge and is based on technical data that DuPont Performance Elastomers believes to be reliable. It is intended for use by persons having technical skill, at their own discretion and risk. Handling precaution information is given with the understanding that those using it will satisfythemselves that their particular conditions of use present no health or safety hazards. Since conditions of product use and disposal are outside of our control, we make nowarranties, express or implied, and assume no liability in connection with any use of this information. As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on any patents. While the informationpresented here is accurate at the time of publication, specifications can change. Check www.dupontelastomers.com for the most up-to-date information. CAUTION: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, discuss with your DuPontPerformance Elastomers customer service representative and read Medical Caution Statement H-69237. DuPont™ is a trademark of DuPont and its affiliates. Viton® and Viton® FreeFlow™ are trademarks or registered trademarks of DuPont Performance Elastomers. Copyright © 2007 DuPont Performance Elastomers L.L.C. All rights reserved. (07/03) Printed in U.S.A. Reorder no: VFE-A10060-00-D0208