Improvement Direction and Main Points of Calcium Carbonate Surface Modification Technology

The surface modification of calcium carbonate is a kind of surface modification of powder with simple modifier formula but large output. At present, in addition to the surface modification of ultrafine and nano calcium carbonate powders for special purposes, most of the calcium carbonate powders filled in polymer materials use stearic acid or sodium stearate as surface modifiers, and a small part Use aluminates, titanates and other surface modifiers.

The main improvement direction of calcium carbonate powder surface modification technology is to improve the surface modification effect and reduce the modification cost.

1. Improve the effect of surface modification

Improving the effect of surface modification mainly starts from three aspects: surface modification method, modification equipment and modifier formula.

2. Reduce the cost of surface modification

Reducing the cost of surface modification mainly starts from the following aspects:

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