Hexagonal boron nitride (hBN) powder has good thermal conductivity, edge properties, chemical stability and lubricity. Its anti-oxidation temperature exceeds 2000°C, and it also has good lubricity at high temperatures. It is mainly used in the preparation of cubic boron nitride, high-temperature coatings, fillers, hBN agglomerates, etc. Boron oxide

(1) Superhard materials industry. Used to prepare cubic boron nitride. Cubic boron nitride is hexagonal boron nitride added with a lithium-based or magnesium-based catalyst, which can be converted into cubic boron nitride under high temperature. At present, the domestic industry consumes more than 400 tons of hexagonal boron nitride each year.

(2) Paint industry. After hBN is coated on metal, ceramics and other materials, it can make the material have good surface lubricity and anti-sticking (release), and can prevent or reduce the chemical reaction between the material and the melt, and improve the life of the material; Various heat-conducting new coatings for radiators and electronic parts to increase heat dissipation. It is suitable for photoelectric industrial radiators, electronic parts cooling modules, power cooling modules, automobile radiators, oil coolers, gearbox oil coolers, and other types of coolers. .

(3) Electronic materials industry. When used as a filler for high thermal conductivity materials, hBN has excellent heat resistance, good corrosion resistance, low thermal expansion coefficient and high heat rate. It is a suitable thermal edge material and can improve the thermal conductivity of resin-based electronic components. Rate.

(4) High-end cosmetics industry. When used as a high-end cosmetic filler, it can increase the adhesion and hiding power of the cosmetics, and it has a good slippery feel, making the cosmetics compact, easy to apply, easy to clean and remove, and it is harmful to the human body. At present, the high-end cosmetic filler industry consumes more than 200 tons of hexagonal boron nitride annually.

(5) Lubricating material industry. As an additive for solid and liquid lubricating materials. The addition of lubricating oil can improve fuel efficiency, improve cylinder performance, and have significant energy-saving effects.

(6) High-tech ceramic industry, used to prepare hBN agglomerates. hBN agglomerates have high thermal conductivity, excellent high temperature performance, excellent electrical and dielectric properties, and are often used to prepare high temperature and high pressure heat dissipation components, high temperature electrical components, crucibles and molds, and high permeability and high stability windows Missile radome, microwave antenna window and other components.