30% calcium carbonate （Caco3）can be added to the PP material,when producing plastic boxes.
General plastic products can be filled with 10-50% calcium carbonate. If the particle size is well controlled, the surface treatment is appropriate, and the product requirements are not high, there are also cases where the filling exceeds 50%. Of course, if it is a thin-walled product, it is best not to exceed 50%.
For plastic crate and boxes made of PP material, they can also be added appropriately.
In the injection molding industry, calcium carbonate is a commonly used inorganic filler. It has the advantages of rich sources, low price, easy use, easy surface treatment, easy color adjustment, and low equipment wear, and is widely used in PP (polypropylene).
Do you know the purpose of adding calcium carbonate to PP?
5 reasons to use Calcium Carbonate (CaCO3) filled Polypropylene injection:
- Reduce costs.
- Improving the heat resistance of plastic products.For example, adding 40% heavy calcium to polypropylene can increase its thermal deformation temperature by about 20 ℃.
- Improve the astigmatism of plastic to provide shading or extinction.
- Improve the electroplating or printing performance of plastic products.
- Reduce the shrinkage rate of plastic products and improve dimensional stability.
The use of calcium carbonate （CaCo3）in injection can reduce costs wChile also improving product quality.
