What is the working principle of the opening masterbatch?
2024-04-16
Opening masterbatch utilizes the spatial principle of opening agents to form uniformly distributed particles on the surface of the film. The protruding particles can allow air to enter the various layers of the film during processing, preventing the film from being difficult to open due to the formation of a vacuum like state in the middle. Low end materials such as calcium carbonate, talc powder, nano barium sulfate, silicon dioxide, and now there are also advanced opening agents such as organic silicon; Skid masterbatch utilizes the migration characteristics of lubricants to migrate to the surface of the film in the later stages of film processing, forming a covering layer that provides lubrication and anti-static effects. Currently, oleamide and erucic amide are widely used as lubricants. Nowadays, the film processing industry is not very clear about the distinction between opening and sliding. Adding too much sliding agent can also have an opening effect, and adding a certain proportion of opening agent can also have a sliding effect. Therefore, many manufacturers generally only choose to add one to solve the two problems, but there may be differences in cost and effect.
Open masterbatch is a combination of various high-energy specialized additives processed through special processes. By using this masterbatch, on one hand, a very lubricating film can be formed on the surface of the masterbatch product, and on the other hand, a micro concave convex structure can be formed on the surface of the masterbatch product, which can effectively reduce the adhesive effect of the masterbatch product.
The functional characteristics of open masterbatch:
1. Can effectively reduce the adhesion of polyolefin masterbatch products;
2. Can provide lubrication for the processing of polyolefin masterbatch;
3. Under normal dosage ratios, it will not affect the transparency of the product.
The open masterbatch is composed of an opening agent, a masterbatch carrier, and a masterbatch additive. It is mainly used for the opening of masterbatch film products, forming a very lubricating film on the surface of the masterbatch product, forming a micro concave convex structure on the surface of the masterbatch product, and preventing the adhesion of the masterbatch. The main principle of open masterbatch is to reduce the contact surface between thin films, which is an anti adhesion mechanism in the up and down directions. Skid masterbatch is mainly used as an organic lubricant to reduce surface friction coefficient and prevent adhesion in parallel directions. The commonality between the two is to make the film easier to separate, which is commonly known as the mother material opening.