Carbon black used in thermal insulation materials is usually a carbon black product with relatively high purity produced by cracking and burning gas in the furnace cavity. Due to the limited application range, the generally controlled particle size is relatively large. This article will introduce the relevant knowledge points of gas-process carbon black for thermal insulation materials.
Application of gas-process carbon black for insulation materials
Gas-process carbon black for thermal insulation materials can be used not only in thermal insulation materials, but also in products requiring high purity such as carbon alloys, medicines, high-tech building materials and other products. It can also be used in the metallurgical industry as a raw material for carbide products such as tungsten carbide or as a heat-insulating material for high temperature resistance.
Differences and comparisons between gas-process carbon black and rubber carbon black
Gas-process carbon black is compared with ordinary rubber carbon black and pigment carbon black. Since pure natural gas is used as the raw material for production, the indicators of non-carbon components such as ash and volatile matter are lower than those of carbon black produced from coal tar or anthracene oil. Less than 2-5 orders of magnitude, so this product can also be called high-purity carbon black.
Performance characteristics of gas-process carbon black for insulation materials
The conventional physical and chemical properties of gas-process carbon black are similar to those of fine particle natural gas thermal cracking carbon black. The outstanding features are high purity (carbon content ≥ 99%), low sulfur content, and minimal ash and other harmful impurities.