Four production methods of polyethylene wax

We have introduced a lot of knowledge about polyethylene wax before, today we will briefly describe the four production methods of polyethylene wax.

1, melting method: solvent in a closed, high pressure container heating melting, and then in the appropriate cooling conditions of the discharge, to obtain the finished product; The disadvantages are that the quality is difficult to control, the operation is expensive and dangerous, and some waxes are not suitable for this method.

2, emulsification method: thin and round particles can be obtained, suitable for water system, but the surfactant added will affect the water resistance of the film.

3, dispersion method: add wax to tree wax/solution, use ball mill, roller or other dispersing equipment to disperse; The disadvantage is that it is difficult to obtain high-quality products, and the cost is high.

4, micro powder method: micro powder can be used to spray micro powder machine or micro powder/classifier.

Polyethylene wax manufacturing, generally have high pressure, low pressure polymerization; The polyethylene wax with branch chain prepared by high pressure method has lower density and melting temperature, while the low pressure law can produce the straight chain of low specific gravity wax; Polyethylene waxes come in a variety of densities. For example, non-polar polyethylene waxes made by the same low-pressure method are usually harder and have better wear resistance and wound resistance, but are less slippery and lower friction coefficient.