Application of Polyethylene Wax in Waterborne Coatings
After adding an emulsifier to polyethylene wax to make an emulsion, adding it to acrylic resin can improve its hydrophilicity to some extent, and play the role of anti-slip, anti-adhesion and stain resistance.
Adhesion refers to the adhesion and adhesion between the surface of the paint film and external substances, the mutual contact between the paint films and the adhesion, and the adhesion of ash, contamination and pressure when exposed to the atmosphere. In the coating film, the auxiliary polyethylene wax is added, and its function is that it will gradually migrate from the state of uniform dispersion in the film to the surface of the film. Due to this migration, the surface of the film can be made anti-blocking.
Polyethylene wax also produces simultaneous effects such as anti-wear and anti-scratch. It can reduce the friction coefficient of the coating surface, so that when the object touches the coating surface, the sliding tendency is greater than the scratching tendency. The migration of polyethylene wax powder to the coating film surface can greatly reduce the dynamic friction coefficient of the coating film surface. The addition of polyethylene wax micropowder to the coating can greatly reduce the tendency of the coating film to be polished by friction, thereby maintaining low gloss durability. Polyethylene wax has obvious extinction characteristics for polyester coatings, and the general addition amount is about 1%; in addition, polyethylene wax has a certain influence on the molten horizontal fluidity of powder coatings, and can be used as a modifier.
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