Antistatic Masterbatches
Effectively controlling and reducing static related problems in a range of finished products including extruded films, bottles, caps and closures made from polymers.
Fast and stable antistatic properties.
Most plastics have a surface resistivity of 1015—1016 ohms.sq. At this level they are good insulators and will be very effective at holding on to any static charge.
Static electricity can:
- Reduce film manufacturing and packing efficiencies.
- Attract dust to the surface of plastic parts, such as bottles, making them unattractive to consumers.
- Cause ‘static’ shocks to personnel.
- Increase the risk of dust explosions.
Wells have developed masterbatches that can modify resistivity levels of plastics to values down to approximately 1010 ohms.sq. At these levels the plastic component will allow any charge to decay to earth and therefore effectively control and reduce static related problems.
How it works.
Antistatic masterbatches can be added to polymers to minimise the natural tendency of most plastics to accumulate static charges. Antistatics are based mainly based on migratory additive systems, which can give fast and long term stable antistatic properties. Migratory additives rely upon the presence of atmospheric humidity to give optimum performance.
The speed of antistatic effect and its duration can be optimised through careful choice of the additive. The migration rate is determined by a number of factors including the relative compatibility of the additive and the polymer, polymer crystallinity, total additive formulation, concentration of the antistatic additive and temperature.
Non-migratory antistatic systems are also available. These will give immediate and permanent antistatic performance.
Wells antistatic masterbatches can be custom formulated to suit specific applications or polymer types.
Applications: Blown film, Cast Film, BOPP, Sheet extrusion, Profile Extrusion, Blow Moulding, Injection Moulding, Fibres and Nonwoven
Polymer Carriers Available: PE, PP, PS
Talk to us about antistatics masterbatches
Want to know more about our Antistatic masterbatches for polymers? Talk to us today about how we can help.