Rheopoly®PPA are series of fluoropolymer based processing aids. It can improve the process of thermoplastic extrusion, especially in low MI liner polyolefin (LLDPE, HDPE and m-PE).
Application:
– Wire and cable
– Blow film
– Casting film
– Blow molding
– Pipe &tube extrusion
– Filament
– Masterbatch production
Function of PPA:
Reduce shear stress to eliminate melt fracture
Alleviate die buildup
Improve processability of low MI resins
Reduce gel counts
Reduce die pressure
Improve pigment dispersion
Shorten color change
Improve surface gloss of extrudates
Reasons to affect PPA performance:
Base resin、Additives package、Shear rate、Die geometry and Processing Temperature etc.
Type of fluoropolymer 、Molecular weight and distribution of fluoropolymer
Synergist combination、Dispersion status、Onset Timing and PPA thermal stability
Product Related Application
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