Antistatic composite calcium carbonate and preparation method thereof

Abstract

The invention discloses antistatic composite calcium carbonate and a preparation method thereof. The antistatic composite calcium carbonate is prepared from the following raw materials: calcium carbonate, modified polyurethane resin, chlorinated rubber resin, wax powder, barium sulfate, acrylate, cyclohexane, glycol ether, butanol, a modifying agent and right amount of water. The preparation method of the antistatic composite calcium carbonate comprises the following steps: (1) preparing a premix for later use; (2) preparing mixed liquid; (3) preparing the modifying agent; (4) mixing the premix, the mixed liquid and the modifying agent, evenly stirring, grinding, drying and crushing to obtain superfine powder. By combining the calcium carbonate with the materials such as the barium sulfate, the modified polyurethane resin, the chlorinated rubber resin and the acrylate which have better comprehensive performance, the production technology is improved; the antistatic property of a composition is effectively improved by adopting the modifying agent and the like; the antistatic composite calcium carbonate is simple in production technology, short in production cycle, stable in quality, low in production cost and higher in application value.

Description

Technical field [0001] The invention relates to the field of industrial fillers, in particular to an antistatic composite calcium carbonate and a preparation method thereof. Background technique [0002] Calcium carbonate is an inorganic compound, CaCO 3 Commonly known as: graystone, limestone, stone powder, marble, etc., are formed by the combination of calcium ions and carbonate ions. They are an important class of functional inorganic fillers. They are widely used in industry. They have low price, rich reserves, stable performance, The advantages of easy processing and non-toxicity can significantly improve the processing performance, physical properties and reduce production costs of materials. It is widely used in plastics, rubber, coatings, papermaking and other fields. [0003] In the application field of calcium carbonate, most products belong to the category of polymers. However, the surface of calcium carbonate particles is distributed with strong hydrophilic hydroxyl gro...

AI Technical Summary

Problems solved by technology

[0003] In the application field of calcium carbonate, most of the products belong to the category of polymers. However, the surface of calcium carbonate particles is distributed with strong hydrophilic hydroxyl groups, which is alkaline, and the interface properties of organic polymer matrix materials are different and compatible. It is difficult to disperse evenly in the matrix material and form a strong bonding force with the matrix material, resulting in interface defects between the two materials and reducing some mechanical properties of the composite material.