Uses of zinc stearate in black BMC (bulk molding compound)
Zinc stearate has the following main uses in black BMC (bulk molding compound):
Lubrication
Zinc stearate can reduce the friction of materials during processing, making the materials smoother in kneading, molding and other processes, and improving production efficiency.
Demolding effect
As a demoulding agent, zinc stearate can effectively reduce the adhesion between BMC and the mold, so that the product can be easily removed from the mold after molding, reducing mold wear and product damage, and improving the surface finish of the product.
Improved processing performance
The addition of zinc stearate can also improve the processing performance of BMC, such as improving the fluidity and dispersibility of the material, making the product more uniform and stable during the molding process.
No negative impact on product performance
When zinc stearate is used as an internal demolding agent, there is no obvious harm to the color, drying rate, and resin viscosity of the product, thereby ensuring the performance and quality of the product
In summary, zinc stearate mainly plays the role of lubrication, de-molding, improving processing performance, and ensuring product quality in black BMC. It is one of the indispensable additives in BMC processing.