Talc powder surface modification machine, coating modification machine, powder dispersion machine

Release time:

2025-01-07 09:32

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Talc powder, as a natural mineral, is widely used in various fields. It has many excellent properties, such as lubricity, anti-adhesion, flow aid, fire resistance, acid resistance, insulation, high melting point, good coverage, softness, good luster, and strong adsorption. However, talc powder also has some issues. Due to the significant difference in polarity between inorganic powders and organic resins, the intermolecular forces cause talc powder particles to easily agglomerate. This affects the dispersibility and compatibility of talc powder in fields such as plastics, thus limiting its application performance. Coating modification technology can significantly improve the dispersibility and application performance of talc powder, which has important practical significance.

Surface modification methods such as surface coating modification, mechanochemical methods, external membrane layer modification, and localized active modification can change the surface of talc powder from hydrophobic to hydrophilic, enhancing its surface adsorption capacity, endowing particles with new properties, and improving compatibility with polymers, thereby expanding the application fields of talc powder. For example, talc powder modified with silane coupling agents can significantly improve the mechanical properties of the matrix; talc powder after coating can improve the tensile strength and impact strength of polymer materials.AD755 can effectively adsorb on the surface of talc powder, reducing intermolecular forces, allowing talc powder to fully disperse in plastic formulations, and improving the surface gloss and density uniformity of the masterbatch.

In large-scale industrial processing, honeycomb mills are commonly used as coating modification equipment. Honeycomb mills are continuous composite modification machines specifically designed for ultrafine powder production with strict requirements on particle size distribution, featuring simple processes and small footprint. The coating rate can usually reach 99.2%, and the activation rate can reach 99.8%, meeting the requirements for active talc powder in different fields.Talc powder modified and coated by honeycomb millscan improve properties such as molding shrinkage rate, surface hardness, bending modulus, tensile strength, impact strength, heat distortion temperature, molding process, and product size stability. It has wide applications in fields such as ABS, nylon, polyethylene, polypropylene, agricultural plastic greenhouse films, PE, PP, PVC plastic films, and plastics for home appliances.

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