The raw materials and production methods of precipitated white carbon black directly affect the physical and chemical properties of the product (such as particle size, specific surface area, pore structure, surface hydroxyl content, etc.), which in turn affects its application performance in downstream products. The following are the impacts of different raw materials or production methods on downstream products:
The influence of particle size and specific surface area
Sulfuric acid method and hydrochloric acid method: The product has a larger particle size and a moderate specific surface area, making it suitable for rubber reinforcement agents, toothpaste friction agents, etc.
Carbon dioxide method: The product has a fine particle size and a large specific surface area, making it suitable for fields such as coatings and inks that require high dispersibility.
Sol gel method: the product particle size is very fine and the specific surface area is very high, which is suitable for catalyst carrier, high-performance rubber reinforcement and other fields with high requirements for microstructure.
The influence of surface hydroxyl content
Sulfuric acid method and hydrochloric acid method: The product has a high surface hydroxyl content and strong hydrophilicity, making it suitable for water-based systems such as coatings and inks.
Carbon dioxide method: The product has a low surface hydroxyl content and strong hydrophobicity, making it suitable for oily systems such as rubber and plastics.
Sol gel method: through surface modification, the content of hydroxyl groups on the surface of the product can be precisely controlled, and it is applicable to fields with high requirements for surface properties (such as medicine, cosmetics, etc.).
The influence of pore structure
Sulfuric acid method and hydrochloric acid method: The product has fewer pore structures and is suitable for fields that do not require high pore structure requirements (such as rubber reinforcing agents).
Carbon dioxide method: The product has multiple pore structures and is suitable for fields that require high adsorption performance, such as coatings and inks.
Sol gel method: the pore structure of the product is controllable, and it is applicable to the fields with high requirements for pore structure (such as catalyst carrier, high-performance adsorbent, etc.).
The impact on downstream product performance
Rubber industry: White carbon black with high specific surface area and high surface hydroxyl content can significantly improve the reinforcement and wear resistance of rubber, and is suitable for high-performance tires, silicone rubber, etc.
Coating industry: Fine grained and highly dispersed white carbon black can improve the transparency, extinction, and weather resistance of coatings, making it suitable for high-end coatings, inks, etc.
Pharmaceuticals and cosmetics: White carbon black with high purity and low surface hydroxyl content can be used as a carrier, thickener, friction agent, etc., suitable for pharmaceuticals, toothpaste, cosmetics, etc.
Catalyst carrier: White carbon black with high specific surface area and controllable pore structure can be used as a catalyst carrier to improve the activity and selectivity of the catalyst.