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What is the role of oxidized polyethylene wax?


Release time:

2021-08-31

Oxidized polyethylene wax is a very common additive in the processing of polymer materials. It has various properties such as lubrication and wear resistance, easy demoulding, reducing extrusion friction, and improving product surface gloss.

What is the role of oxidized polyethylene wax?

氧化聚乙烯蜡

What is the role of oxidized polyethylene wax?

Oxidized polyethylene wax is a very common additive in the processing of polymer materials. It has various properties such as lubrication and wear resistance, easy demoulding, reducing extrusion friction, and improving product surface gloss.

However, oxidized polyethylene wax has almost no polarity, has poor compatibility with some resins such as polyester, PVC, nylon, etc., and is easily exposed to surface oiling. Therefore, by modifying and oxidizing the polyethylene wax, it is possible to introduce a strong polar group such as a carboxyl group or a hydroxyl group into the polyethylene wax, to improve the compatibility of the polyethylene wax with these resins, and to improve the adhesion between the resin and the metal.

High-density oxidized polyethylene wax OA9 is a high-temperature lubricant for polymer oxidation polymerization. It has a certain amount of carboxyl and hydroxyl groups in the molecule and is a functional processing aid with excellent performance. OA9 in the production of PVC foam board, WPC and other PVC products, than ordinary oxidized polyethylene has the following advantages:

The most detailed use of oxidized polyethylene wax is introduced

As an important industrial additive, oxidized polyethylene wax plays an indispensable role in industrial production. Qingdao Saino will introduce the specific principles and applications of polyethylene wax.

1. What is oxidized polyethylene wax?

In the production process of polyethylene, a small amount of oligomers-low relative molecular weight polyethylene, also known as polymer wax, polyethylene wax. Because of its excellent cold resistance, heat resistance, chemical resistance and wear resistance, it has been widely used. In regular production, this part of wax can be directly added to polyolefin processing as an additive, thereby improving the light translation and processing performance of the product. Polymer wax is a good insensitive agent, but also can be used for plastics, pigment dispersion lubricant, corrugated paper moisture-proof agent, hot melt adhesive and floor wax, car beauty wax, etc.

2. The function and use of oxidized polyethylene wax

Oxidized polyethylene wax is cracked wax, mainly for masterbatch, filling parent particle defoamer, granulation, plastic steel, PVC pipe, hot melt adhesive, rubber, shoe polish, leather brightener, cable insulation material, earth wax, candle, plastic profile, polyethylene wax

The important application of PE wax is PVC processing.

2.PE wax as an internal lubricant has good compatibility with the polymer, which plays a role in reducing the cohesion of the polymer molecules, improving the internal friction heating of the plastic melt and the fluidity of the melt.

The function of PE wax as an external lubricant is mainly to improve the friction between the polymer melt and the hot metal surface of the processing equipment.

3. The principle of oxidized polyethylene wax

The polyethylene wax is dissolved in a solvent at a high temperature (about 100 to 140 °F), but is precipitated after cooling to room temperature, and is present in the coating material as crystallites. Because of its thixotropy, it is beneficial to the storage of the coating, but after the coating is applied, it is transferred to the surface of the coating film in the process of solvent evaporation, and finally forms a "waxing" surface with other components of the coating.

The effect of polyethylene wax depends on the variety and specification of polyethylene wax, the final particle size, the ability to migrate to the surface of the coating, the composition of the coating, the nature of the coated substrate, the construction application method and other factors.


Key words:

Oxidized polyethylene wax