Additive Masterbatch Plast PPA

Each type of additive masterbatch has some special properties to improve the end plastic product.

Polymer Processing Aid(PPA)

BAJAJ

PLAST PPA

Polymer Processing Aid

High-quality PPA-Masterbatch(Polymer Processing Aid) to improve processing ability of material and improve product quality that guarantee the absolute satisfaction of your customers.

Solution for processing as a lubricant & supporting rheology

Polymer Processing Aids (PPA) are additives combined with the base polymer to improve the production process ability and processing characteristics of the material as well as improve the quality of the final product. More specifically, they improve the melt process ability and handling of high molecular weight polymers to improve the appearance of the final product by removing flow marks and die lines.

Facilitator in terms of Melt Processability

Polymer processing aid help in increasing blown film transparency, improving smoothness, product appearance and mechanical properties.

Reduce The defects
Shark Skin Effect (Melt Fracture)

They function by continuously coating the die with a lubricating fluoro polymer which aids in processing of polymers which are highly susceptible to melt fracture due to die stress they undergo at the die exit. During polymer extrusion, the surface of the product is uneven above a critical shear stress (approx 20 N/cm2 ) which leads to “Shark skin” effect and this phenomenon is better known as “Melt Fracture”.

Improves Product Quality

Our PLAST PPA(Polymer Processing Aid pertains to next generation extrusion process aides that improves product quality & operational efficiency of extrusion & blown film production lines. It comprises of high performance fluoro elastomers used in processing of low MFI extrusion grades of LLDPE and HDPE.

Effect of PPA & the phenomenon
occurring inside the extruder

Melt fracture elimination results in LLDPE with addition of Bajaj Plast Processing Aids

The best option to deal with flow related problems is by carefully choosing the right source of raw materials & optimization of right process parameters. In spite of making these attempts, flow disturbances are bound to occur and additional

Know more

the optimum utilization of PPA can reduce the defects (fish eye, shark skin, etc) observed in PE films during the process and it is economically beneficial as it helps in reducing the production costs of polymers due to enhanced efficiency and high quality of product.

Illustration of the flow gaps between the melt velocity (V0) and the velocity along the die walls (V1).

After exiting the die, these velocities must even out. When the flow resistance of the material is high and the gap between the shear stresses and the melt velocity reaches a critical value, the polymer chains are overstretched, cannot cope with the velocity gap and “tear”. This phenomenon, also called melt flow disturbance, creates visual defects on the surface, PPA facilitates to overcome the same.

Reduction of extruder die build-up

It has been well proven that work should begin with 15 minutes of rinsing with PPA processing at a high concentration (between 1.5% – 2%) in the outer layers. This makes it possible to rapidly get a good pre-coating of the extruder and the die walls. After continuous production for a day, PPA is added to the outer layer at a lower concentration (between 0.5% – 1%) thereby it is intended to preserve the initial layer created and maintain it in its entirety.

Bajaj Plast PPA(Polymer Processing Aid) TDS

Product	Description	TDS
Plast PPA (Precessing Polymer Aid)	They improve the melt process ability and handling of high molecular weight polymers to improve the appearance of the final product.