The Difference Between Talc And Calcium Carbonate In Modification

2021-08-10

Both talcum powder and calcium carbonate are used for filling, the purpose is to:PyWUltrafine Grinder, Ultrafine Mill For Sale

1. Increase dimensional stability (that is, decrease in shrinkage),PyWUltrafine Grinder, Ultrafine Mill For Sale

2. Increase the stiffness of the material,PyWUltrafine Grinder, Ultrafine Mill For Sale

3. Increase the heat resistance of the material,PyWUltrafine Grinder, Ultrafine Mill For Sale

4. Reduce material costs and other aspects.PyWUltrafine Grinder, Ultrafine Mill For Sale

But It Also Has Its ShortcomingsPyWUltrafine Grinder, Ultrafine Mill For Sale

1. Density increases,PyWUltrafine Grinder, Ultrafine Mill For Sale

2. If it is not used well, the impact toughness will decrease.PyWUltrafine Grinder, Ultrafine Mill For Sale

3. The luster of the material has decreased.PyWUltrafine Grinder, Ultrafine Mill For Sale

Talcum powder has the same particle size distinction as calcium carbonate, generally 300 meshes, 600 meshes, 800 meshes, 1250 meshes and 2500 meshes. Of course, there are finer ones. Generally, 800 meshes and 1250 meshes can be selected for plastics. Two, this can maximize the performance/price ratio.PyWUltrafine Grinder, Ultrafine Mill For Sale

Regarding the difference between talcum powder and calcium carbonate:PyWUltrafine Grinder, Ultrafine Mill For Sale
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1. The shape of talcum powder is flake, so it has higher rigidity, dimensional stability and heat resistance temperature, and it has good reinforcement effect.PyWUltrafine Grinder, Ultrafine Mill For Sale

2. Calcium carbonate is generally granular, so its stiffness and other aspects are not as good as talc, but its price is lower, and its whiteness is high, and it has little impact on plastic impact toughness.PyWUltrafine Grinder, Ultrafine Mill For Sale

3. Talc has a nucleation effect on polypropylene, while calcium carbonate has no obvious effect in this respect.PyWUltrafine Grinder, Ultrafine Mill For Sale

4. Calcium carbonate can generally be divided into light calcium carbonate and heavy calcium carbonate, but talc powder does not have this distinction, talc powder is ground from natural minerals.PyWUltrafine Grinder, Ultrafine Mill For Sale

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