Critical DetailsBLOG 1
Why Calcium Carbonate Powder is essential for Plastic Industry
One of the most common mineral fillers used in the plastics industry is calcium carbonate (CaCO3). It’s widely available all over the globe, simple to grind or reduce to the desire particle size, compatible with a wide range of polymer resins, and cost-effective.
CaCO3 is used as a plastic compound additive to reduce the surface energy and produce opacity and gloss, which improves surface quality. CaCO3 also aids in increasing both impact strength and flexural modulus (stiffness) when particle size is carefully managed.
Then why should we add CaCO3? What are the advantages of CaCO3 use?
• It offers surface smoothness if particle size is finer.
• It reduces shrinkage and provides dimensional stability.
• It is thermally stable during processing.
• It offers impact resistance if used at a certain level [8 phr].
• It improves flow ability [8 phr].
• Improves hardness and compressive strength.
In edgebanding industry, one of the major concerns of utilizing thin edgebanding is “telegraphic effect ” that you can see in the visual. CaCO3 usage ( on the right levels ) helps to minimize these surface traces. Of course the quality of the chipboard or application temperatures, etc.. are also important factors in this effect but what want to point out in this article is, we do not add CaCo3 for cost reduction we add to for better performance of edgebanding and help to increase the quality of final product.