NC white hair series is a modified inorganic compound, which can be used as plastic foaming agent and nucleating agent. It is commonly used in PVC, PS, ABS, PE, PP and modified PPO. Common foaming agents release a lot of heat during decomposition, which is easy to cause the irregular core structure of foaming materials. On the contrary, NC white hair series has the characteristics of heat absorption during decomposition. This series is self colored, tasteless and freely diffusible powder, which mainly releases CO2 and water vapor during thermal decomposition, and the residue of decomposition has no impact on the equipment. The ingredients of some models of NC white hair series meet FDA standards and can be used as food materials.