(1) Transparent white carbon black: Transparent white carbon black refers to a type of white carbon black that can be added to the rubber compound to improve or not affect the transparency of the rubber compound. The transparent white carbon black should have the following basic requirements; the refractive index is similar to that of the raw rubber Or the same; high purity; small particle size, less than 1/3 of the wavelength of visible light; narrow particle size distribution.

(2) Alkaline white carbon black: Alkaline white carbon black is a modified white carbon black whose surface is alkaline (pH=6.9~10.5). It has the following characteristics: low reinforcement and dispersibility, excellent processability; high dynamic modulus, low stiffness, high elasticity, low compression water long-term deformation, low heat generation; due to the introduction of Al2O, and Na2O , It is alkaline, has rapid vulcanization and good thermal conductivity; excellent dynamic performance, dynamic tear resistance, good flexibility resistance: in NBR/HNBR, good dispersion, improve its heat resistance. Especially used in fluororubber and acrylate, as an alkaline reinforcing filler, its reinforcing properties and comprehensive performance are better than other alkaline fillers.

(3) Superfine white carbon black: Any solid substance has a fixed shape and occupies a corresponding space, that is, it has a certain size. Generally speaking, powder or fine particles generally refer to solid substances with a size of less than 1mm. When the particle size of the solid particles is 0.1~10μm, it is called fine particles, or sub-ultrafine particles. Most of the dust floating in the air falls into this range. When the particle size reaches 0.1pm or less, it is called ultrafine particles. Ultra-fine particles are divided into large, medium and small ultra-fine particles.

(4) Nano silica: Nano silica is commonly known as "ultra-fine silica", which means that the size of silica particles has reached the nanometer level. It is one of the extremely important new high-tech ultra-fine inorganic materials. Small diameter, large specific surface area, strong surface adsorption, large surface energy, high chemical purity, good dispersion performance, thermal resistance, electrical resistance and other special properties, nano-silica has excellent stability and reinforcement Properties, thickening properties and thixotropy are unique in many disciplines and fields, and have irreplaceable effects.
 
(5) Highly dispersible white carbon black: The precipitation method white carbon black can be roughly divided into three categories: one is the "standard" traditional white carbon black (LDS), the second is easy-dispersible white carbon black (EDS), and the third is high Dispersed white carbon black (HDS). Highly dispersed white carbon black is a new generation of white carbon black. Compared with typical reinforcing filler carbon black, it can not only improve the wet skid resistance of tires, reduce rolling resistance, but also improve the resistance to Grinding performance.