Tecnoflon® NM FKM

Tecnoflon® NM is a fluoroelastomer copolymer used as an additive in order to offer unique benefits to polymer resins, such as the elimination of melt fracture and the reduction of die buildup.

Processing

Tecnoflon® NM FKM is a fluoroelastomer copolymer based on hexafluoropropene (HFP) and vinylidene fluoride (VDF). Tecnoflon® NM FKM has been developed particularly to improve extrusion, blow molding, and rotomolding of low density polyethylene, high density polyethylene, and linear low density polyethylene as a processing aid. It is available in a free flowing powder form, is easy to handle and to dose accurately in masterbatch and/or polymer resins.

Performance

Due to its incompatibility with the majority of polymers and their fast movement in the molten flow during extrusion, Tecnoflon® NM FKM build a thin coated layer on the metal surface of the die leading to a direct improvement of the processability of the extruded polymers (stabilization of flow instabilities).

Key features

  • Elimination of melt fracture (shark-skin effect)
  • Reduction of die build-up
  • Improvement of the surface finish with high gloss levels
  • Faster production start-up
  • Pressure reduction
  • Higher output at constant die pressure and temperature
  • Lower energy consumption

Normally a final concentration of only 100 to 1000 ppm Tecnoflon® NM FKM is sufficient to achieve the mentioned benefits.

Elimination of Melt Fracture

GF-Solef-Tecnoflon-NM-2
  1. Pressure curve virgin polymer.
  2. Pressure reduction additivated polymer by lubricant.
  3. Maximum output virgin polymer with no melt fracture.
  4. Significantly increased output with no melt fracture by additivation of the basic polymer(200ppm processing aid).

Applications

Tecnoflon® NM FKM has been developed particularly to improve extrusion, blow molding, and rotomolding of low density polyethylene, high density polyethylene, and linear low density polyethylene as a processing aid.

It's usage is ideal for the production of blown and cast film mainly used for:

  • Industrial packaging film
  • Agricultural film
  • (Co-extruded) food packaging film
  • BOPP film

Typical Properties

Tecnoflon® NM Powder Technical Data Sheet

Main PropertiesTecnoflon® NM Powder
Fluorine content66 wt %
Glass transition temperature
(DSC-Midpoint)
-18/-19°C/-0.4/-2.2°F
Specific gravity1.81 g/cm3
Particle size500 micron/35 mesh
Colorwhite or off-white
Anti-sticking agentCalcium stearate (1 wt %)