Application of PTFE wax in powder

2021-06-09   Pageview:382

PTFE micropowders are low molecular weight micron PTFE white powder prepared by special method with molecular weight of 10000~30000. it not only keeps the excellent characteristics of PTFE basically, but also has many unique properties, such as high crystallinity, good dispersion and easy to mix and add, so it is widely used in the co-blending modification of polymer materials.

PTFE wax can be used between -190C~300C. It is usually used as a processing aid, and can also be used as a lubricant alone. However, it cannot be used to replace high molecular weight PTFE suspension or dispersion resin for extrusion or molding.

It can reduce the friction coefficient of the material surface, improve the anti-wear performance of the material, prevent the scratch of the material surface, and play the role of internal lubrication and demoulding, as well as improve the anti-adhesion and friction resistance of the resin, and avoid the appearance of surface defects and scaling of injection moulded parts. The addition amount of the product is generally between 5 and 20% by weight. Application plastic fields include nylon (PA), polyformaldehyde (POM), polycarbonate (PC), polyester, polyimide (PI), polyphenylene sulfide (PPS), polyether ether ketone (PEEK), polysulfone, etc.

The amount of addition is generally between 0.5% and 20% for this micronized powder in different formulation systems.

It is dispersed directly in inks and coatings by high-speed stirring. It can also be added by various grinder equipment. Please control the grinding temperature when using the grinder. Pre-dispersion can be performed to prepare a wax slurry with a wax powder concentration of 20-30%, which can be added to the system when needed, so that the dispersion time of the wax powder can be reduced.


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