Ultrafine aluminum hydroxide powder was prepared by precipitation method with high purity sodium aluminate solution as raw material. It has the characteristics of small particle size, regular morphology, good crystal shape, high whiteness, high chemical purity, narrow particle size distribution, low conductivity, low oil absorption, easy dispersion and high compatibility. In addition, the product has good filling, flame retardant, smoke suppression function and excellent processing performance. 

Ultrafine aluminum hydroxide powder was prepared by precipitation method with high purity sodium aluminate solution as raw material. It has the characteristics of small particle size, regular morphology, good crystal shape, high whiteness, high chemical purity, narrow particle size distribution, low conductivity, low oil absorption, easy dispersion and high compatibility. In addition, the product has good filling, flame retardant, smoke suppression function and excellent processing performance. The specific functions of the product are as follows: 

1. It is used as the insulation layer and protective layer of the cable material; 

2. It is used in thermoplastic PVC products, with flame retardant effect and inhibit smoke; 

3. It is used as a coating material for lithium battery diaphragm, which plays a role in heat resistance, high temperature resistance and insulation;

4. It can improve the leakage resistance and corrosion resistance of silicone rubber; 

5. It has good ink absorption, which can improve the whiteness, opacity, smoothness and ink absorption of coated paper; 

6. It can improve the fire resistance of the foam material.