The difference between protective wax, microcrystalline wax, PE wax and paraffin wax

First of all, protective wax is classified according to its application. Secondly, Pe Wax, paraffin wax and microcrystalline wax all can be used as protective wax.

The difference is as follows:

PE WAX is polyethylene wax (PE-WAX), an ultra-low molecular weight polyethylene. Polyethylene wax is generally divided into oligomer wax, cracked wax, polymeric wax and mixed wax four kinds, domestic production is generally oligomer wax, other cracked wax, polymeric wax and mixed wax is mainly produced abroad more, the performance of polymeric wax theoretical analysis is better than cracked wax, the specific use depends on the compatibility of the product. Generally, it is mainly used to improve the fluidity of polyolefin plastics, improve the dispersion of fillers and auxiliaries, and is also used as an internal lubricant of rubber and plastic materials.

Paraffin wax is a kind of mineral wax, but also a kind of petroleum wax; It is a flake or acicular crystal obtained from the distillation of crude oil by solvent refining, solvent dewaxing or by wax freezing crystallization, pressing dewaxing to obtain wax paste, and then by solvent deoiling and refining. Also known as crystalline wax, the number of carbon atoms is about 18 ~ 30 hydrocarbon mixture, the main group is divided into straight chain alkanes (about 80% ~ 95%), there are a small number of alkanes with individual branch chains and single ring cycloalkanes with long side chains (the combined content of both is less than 20%). The main quality indicators are melting point and oil content, the former indicating temperature resistance, the latter indicating purity. Among them, the former two are widely used, mainly used as components and packaging materials for food and other commodities (such as wax paper, crayons, candles, carbon paper), coating dressings for baking containers, cosmetic raw materials, for fruit preservation, to improve rubber aging resistance and increase flexibility, electrical components insulation, precision casting, etc., can also be used for oxidation to produce synthetic fatty acids. Note: Paraffin is not a crystal!

Microcrystalline wax is a kind of refined synthetic wax with similar microcrystalline properties. It has the characteristics of good luster, high melting point, light color, compact structure, firm and smooth, and can intermelt with various natural waxes, and can improve the melting point of its low degree wax and improve the performance of coarse wax. The microcrystalline wax itself is as white as jade, and the friction produces light, which has a very favorable effect on the production of light-colored products. It is mainly composed of C30-50 cycloalkanes and a small amount of normal and isomeric alkanes, which have high melting point and amorphous characteristics. The melting point of microcrystalline wax is generally 54.4OC to 90.6’C, and compared with paraffin wax, microcrystalline wax is tough and not easy to break. Most grades of microcrystalline wax are malleable. In color, microcrystalline wax is milky white or light yellow.

Petroleum wax is mainly composed of long carbon chain normal paraffin (alkane) and isoalkane (isoalkane), and microcrystalline wax in addition to normal paraffin and isoalkane composition also contains many saturated hydrocarbons with long branched chains and rings. Therefore, the melting point, molecular weight and viscosity after melting of the microcrystalline wax are higher than that of petroleum wax, and the brittleness is low and not easy to break.