ADVERTISEMENT FEATURE
Avient’s HiformerTM
Liquid Additives for Polyolefins tackle build-up to improve aesthetics and minimise black specks
issue of a die deposit build-up due to the residues of low-MW polymer, additives, and degradation products accumulating on the die and extruder surfaces. These deposits can create die lines, carbonized material (black specks), and other defects on the end products when they are released. When processing aid additives are added to the die and extruder surfaces, the coating layer will be created to displace degraded materials clinging to the die. This minimizes stagnation in the extrusion process and protects against thermal degradation.
Avient Hiformer™ Liquid solutions comprise colorants and additives, which are placed into plastics to deliver excellent dispersion
Description Application
Loading level Dosage Dosing
Functionality Process stability Availability
and dilution. Hiformer™ Liquid Additives for Polyolefins are the new range of polymer processing aids (PPA) in liquid form for polyolefin applications and can be compatible with all extrusion processes. These liquid solutions are formulated with selected additives at a higher loading level compared to standard solid equivalents. They feature excellent metering accuracy thanks to the liquid pump technology at a low let- down ratio.
Hiformer™ Liquid Additives for Polyolefins effectively prevent die build-up and shark skin effects. As a result, it helps to improve overall manufacturing efficiency while lowering total expenditure significantly.
Standard Solid Additives PE Blown Film and Cast 2 – 5%
0.5 to 2%
Customers who currently use Avient’s Hiformer™ Liquid Additives for Polyolefins routinely provide positive feedback regarding shorter machine start-up time and melt fracture improvement versus solid solutions they have used in the past. In addition, customers are also impressed by reductions in the need for die lip cleaning caused by die deposit build-up.
Avient Hiformer™ Liquid Additives for Polyolefins are suitable for cast film, blown film, extrusion hose, extrusion coating, and extrusion HDPE bottles.
To learn more contact:
vincent.tan@avient.com
asina.lee@avient.com
Hiformer™ Liquid Additives PE Blown Film and Cast 20 – 50%
0,05 – 0,2%
Blending with standard polymer or pellet dosing unit Pump equipment Avoid melt fracture & die deposit build up +
Good process stability Commercial
The advantages of liquid polymer processing aid are: • Better processability • Fewer logistics - lower impact on carbon footprint • Lower networking capital
Avoid melt fracture & die deposit build up +++
Excellent process stability and extended production run Commercial
• Easier production handling • Higher working safety due to less handling in production • Better performance due to the faster kinetics of additives
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