In PE film production and processing, there will be a lot of processing difficulties, such as mold mouth accumulation of material, film thickness is not uniform, the surface finish and smoothness of the product is not enough, processing efficiency is low.
In film processing, the addition of the polymer processing additive PPA significantly improves the extrudability of PE films and makes it easier to produce high-quality films with excellent properties.
But in 2023 ECHA made public the draft PFAS limits, which will have a huge impact on the global fluorochemical industry. With regard to this, SILIKE has developed a fluorine-free PPA processing aid that is a perfect substitute for PPA processing aids.
SILIKE SILIMER-5090 is a Fluorine-free processing additive for the extrusion of polypropylene material with PE as the carrier launched by our company. It is an organic modified polysiloxane masterbatch product, which can migrate to the processing equipment and have an effect during processing by taking advantage of the excellent initial lubrication effect of polysiloxane and the polarity effect of modified groups. A small amount of dosage can effectively improve the fluidity and processability, reduce die drool during the extrusion, and improve the phenomenon of shark skin, widely used to improve the lubrication and surface characteristics of plastic extrusion, which can replace the PPA additive grade of 3M’s FX5929 and FX9613.
SILIKE SILIMER-5090 can be used in the preparation of PE film, reduces the friction coefficient of the film surface, improves the smooth effect, will not precipitate or affect the film appearance and printing; It can replace PPA products, and effectively improve resin fluidity and processability, reduce die drool during extrusion and improve shark skin phenomenon.
In addition, this SILIKE SILIMER-5090 Non-fluoropolymer processing additive in wire& cable, pipe, and other multiple end-use applications as well. SILIMER-5090 Fluorine-free PPA MB opens a new door for PFAS and fluorine-free alternative solutions!
article source: https://www.siliketech.com/news/fluorine-free-ppa-in-film-processing-applications/