PE wax and Oxidized Polyethylene wax are types of synthetic waxes with different properties and chemical structures. If want to compare this 2 grades synthetic waxes first must compare their chemical structure and polarity.
The structure of oxidized polyethylene wax consists of a linear polyethylene chain with carboxyl groups (-COOH) attached to some carbon atoms in the chain. The number of carboxyl groups in oxidized wax varies according to the oxidation percentage and the molecular weight of polyethylene wax.
Oxidized Polyethylene wax (OPE wax) is produced by the oxidation of Polyethylene wax. The oxidation process caused increases polarity of PE Wax and makes it more compatible with polar materials. In this process that is well known as Oxidation, carboxyl groups (-COOH) introduces into the PE wax molecule.
The exact structure of Oxidized Polyethylene wax (OPE Wax) can vary depending on the degree of oxidation and the molecular weight of the starting PE wax. However, in general, Oxidized Polyethylene wax consists of a linear chain of polyethylene units with carboxyl groups (-COOH) attached to some of the carbon atoms along the chain. The carboxyl groups can be present in varying amounts, typically ranging from 1% to 30% by weight.
The presence of carboxyl groups in Oxidized Polyethylene wax makes it more polar and hydrophilic than PE wax, which is non-polar and hydrophobic. This increased polarity gives Oxidized Polyethylene wax improved dispersibility and emulsification properties, as well as improved adhesion to polar surfaces. The carboxyl groups also provide sites for chemical modification and functionalization, which can further enhance the properties and make it proper as a Lubricant for compounds base polyolefin, producing emulsion wax, also is good as an additives in hot melt adhesives.
On the other hand, Polyethylene wax, also known as PE wax, is a low molecular weight polymer made by the polymerization of ethylene. PE wax is a non-polar material with a low melting point, good thermal stability, and excellent water repellency. It is commonly used as a lubricant, release agent, and processing aid in a wide range of applications, including Plastics, PVC Stabilizers, Coatings, inks, and Hot-melt Adhesives.