The significance of various indicators of white carbon black in application

     1. The specific surface area of the reinforcing effect of white carbon black mainly depends on its specific surface area generally increases with the specific surface area, the various strength indexes of rubber products increase, but the rebound resilience decreases, the tear strength decreases, and Wear-resistant, difficult to disperse during mixing, high heat generation, high viscosity of rubber Mooney, easy to scorch, therefore, different formulations of carbon black manufacturers, different applications, different specific surface areas, specific surface area on the physical and mechanical properties of vulcanized rubber The impact is not always the same.

     2. The oil absorption value of the oil absorption value reflects the degree of structure, the oil absorption value is large, the structure is small, the tensile strength of the vulcanized rubber is generally large, the tensile strength and hardness are large, especially the wear resistance is small, but the extension The rate of growth is low.

3, 900 ° C burning reduction reflects the surface hydroxyl. When the surface hydroxyl group is too much, the structure of the rubber composite material is easily caused to make the material brittle. It affects the processing performance, and the vulcanized rubber is easy to fall off, and the surface hydroxyl group has a strong adsorption effect on the vulcanization accelerator, and the vulcanization time is prolonged.

       4. The heating loss at 105 °C reflects the amount of free water in the voids of the particles. When the amount is too low, the degree of structural structuring of the rubber becomes high. If the heating loss is zero, the anti-fatigue agent of the carbon black manufacturer is useless. Control is more suitable at around 6%.

       5, PH value is generally around 7, the pH value increases (acidity decreases), the vulcanization rate of the rubber compound increases.

       6. The less soluble salt content, the better, but to significantly reduce the soluble salt content, the cost of production will be greatly increased.

       Throughout the world, new varieties of silicon compounds have not increased much in recent years, and the development of inorganic silicon compounds has been paid more attention. From the current trend, black carbon rubber-specific carbon black will enter the light industry, food, medicine, construction, electronics, metallurgy, machinery industry and many other fields, and it will certainly have a promising future.