Pigment coating equipment, composite modification machine, disintegrating equipment

Release time:

2025-06-24 08:05

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Encapsulation modification machines use physical or chemical methods to uniformly coat pigment particles with one or more encapsulating agents. Physical encapsulation relies on mechanical forces and interfacial adsorption to firmly bind the encapsulating agent to the pigment particles; chemical encapsulation forms a chemically bonded coating layer on the pigment particle surface through chemical reactions. This precise surface treatment effectively improves the pigment's dispersibility, stability, and surface activity. Taking a honeycomb mill as an example, it uses a wind sweeping system, which is good for the dispersibility of powder and surface modifier, and the coating on the particle surface is uniform, especially suitable for surface modification of ultrafine powders. In actual operation, the materials enter the modification machine through the feeding system, and the preheated modifying agent is sprayed in through a metering pump. After the materials entering the modification machine are uniformly dispersed, they are mixed with the atomized agent, and the high temperature of the system is used to complete the surface modification of the agent on the powder.

Pigment agglomeration has always been a difficult problem for the industry. Encapsulation modification machines greatly improve the dispersibility of pigments in water, organic solvents, and various polymer matrices by constructing an effective coating layer on the surface of the pigment particles, increasing the spatial hindrance between particles, and simultaneously regulating the charge distribution on the particle surface to generate electrostatic repulsion. In paint production, pigments with good dispersibility can make the paint color uniform and fine, avoiding defects such as color blocks and color spots, thereby improving the overall quality of the paint.

Modified pigments Not only can it prevent pigment particles from deteriorating due to oxidation, hydrolysis, etc., caused by reactions with oxygen and moisture in the air, but it can also maintain the structural integrity and chemical stability of the material under extreme conditions such as high temperature and high humidity, greatly extending the storage life of the pigment. In paints and plastic products used outdoors, encapsulated pigments can better resist erosion from ultraviolet rays, wind, and rain, maintaining color brightness and stability.

Surface functional modification of pigments through encapsulation modification machines can specifically impart various special properties to pigments. Introducing hydrophilic groups allows originally hydrophobic pigments to be uniformly dispersed in aqueous systems, meeting the needs of the coatings, textile printing and dyeing, and other industries for aqueous materials; modifying biocompatible materials can give pigments good biocompatibility, which can be used as drug carriers, biosensors, etc., in the biomedicine field; constructing special nanostructures and surface charge distributions gives pigments superhydrophobicity, used in self-cleaning materials, waterproof coatings, and other fields. This functional modification allows pigments to meet the stringent requirements of different fields, greatly expanding their application range.

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