Kaolin is an important plastic and rubber filler. Usually, the product performance depends on the particle size distribution and particle surface area of the product. However, modern scientific research has proved that the kaolin powder after beneficiation, purification and crushing has a large number of hydroxyl and oxygen-containing functional groups on the surface, which is acidic. The kaolin after calcination is more acidic. In addition, due to its large specific surface area and high surface energy, kaolin has poor compatibility with organic polymer systems. Therefore, when it is used as filler for polymer based materials (such as epoxy resin or vinyl resin), its surface must be modified to obtain products with better performance.
The following is an introduction to the role of kaolin as a filler in plastic rubber:
1.Kaolin is used as filler in rubber.
Kaolin is widely used as filler in the rubber industry. Adding latex mixture can improve the mechanical properties of rubber, improve the mechanical strength of rubber products, improve wear resistance and chemical stability, and prolong the hardening time. It is found that the addition of modified kaolin as filler to rubber products can improve other application properties of the products.
2.Kaolin is used as filler in plastics.
Kaolin as a filler can improve the properties of plastic products, and can also give products some special application properties, such as good electrical insulation, high bonding strength, good water resistance and so on. The surface of plastic products made of modified kaolin filler is smooth, which can reduce thermal cracking and shrinkage, has the advantages of polishing, improves processing accuracy, chemical resistance and other dimensions.
SMMVIK Machinery has many years of research and development experience and is a trusted old brand manufacturer. If you are interested in the processing of kaolin ore, you are welcome to consult. We have professional customer service personnel to give you detailed answers, and we can also recommend suitable equipment for you according to your output, feed particle size, discharge particle size and budget. In addition, we are a direct selling manufacturer, there is no intermediate agent to earn the price difference, and the price is more preferential, so that you can achieve high-quality production at a preferential price.
