Application of wax micropowders in thermoplastic polyurethane. In the injection molding of polyamide, the ease of mold release depends on the degree of crystallinity and the effect of lubricants. Wax micropowders are very suitable due to their improved flow properties and mold release properties. Molding, and enables high temperature injection molding and labor saving.
Thermoplastic polyurethane (TPU) is very viscous immediately after processing. As a result, injection molding is difficult to demould and stack adhesion.
Micronized wax imparts a very good release effect without migration. It can be used alone at 0.5-1.0% or in combination with 0.3% FA1 at 0.3-0.5%.
Application of wax in thermosetting plastics:
Lubricants and release agents are required for thermosetting plastics during production and processing. These artifacts must be precisely consistent with each other. Use of compatible internal lubricants improves flow, while external lubricants reduce sticking of the material to hot machine parts, thereby improving release from the mold.
As pure internal lubricants, fatty acid esters and stearic acid metal salts can of course be used as release agents. In contrast, montan waxes combine with internal lubricants with an extremely strong release effect, providing a greater operating tolerance. They neither plasticize nor migrate, which is very important for further processing of the product.
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