The application scope of hexagonal boron nitride nanosheets (h-BNNS) continues to expand, and chemical exfoliation is the mainstream preparation method.

Hexagonal boron nitride nanosheets (h-BNNS) are representative products of boron nitride nanosheets (BNNS), which refer to sheet-like nanomaterials composed of boron nitride with a hexagonal crystal structure. Hexagonal boron nitride nanosheets have the advantages of good insulation performance, good high temperature stability, low friction coefficient, and good processability. They are widely used in aerospace, electromagnetic shielding, national defense, heat exchange engineering, electronic packaging, energy storage and other fields. many.

The preparation methods of hexagonal boron nitride nanosheets include chemical exfoliation method, micromechanical exfoliation method, chemical vapor deposition method, high temperature reaction method, etc. The chemical stripping method uses concentrated sulfuric acid and hexagonal boron nitride as the main raw materials. After mixing them, potassium manganate solution is added, and finally hydrogen peroxide is added to strip off the manganese dioxide particles and oxygen, thereby producing hexagonal boron nitride nanosheets. The chemical exfoliation method, also known as the liquid phase exfoliation method, has the advantages of good finished product quality, good crystallinity, and high production efficiency. It is widely used in the preparation process of hexagonal boron nitride nanosheets.

According to the “2023-2028 China Hexagonal Boron Nitride Nanosheets (h-BNNS) Industry Market In-depth Research and Development Prospects Forecast Report released by the Industrial Research Center >》 shows that hexagonal boron nitride nanosheets have excellent performance and can be used to produce modified polymer materials. They are widely used in aerospace, electromagnetic shielding, national defense, heat exchange engineering, electronic packaging, energy storage and other fields. . Benefiting from the growing downstream demand, the market space for hexagonal boron nitride nanosheets has further expanded.

In November 2022, the scientific research team of Tsinghua University and the Chinese Academy of Sciences successfully discovered that hexagonal boron nitride nanosheets have lyotropic liquid crystal behavior and can be used to manufacture transmissive liquid crystal light modulation devices. This device can continuously, dynamically and stably modulate deep ultraviolet light. In the future, it will It has been applied in high-precision lithography, deep ultraviolet optical communications, new energy and other fields. It is expected that in the future, as local companies and related scientific research institutions continue to increase investment in research and development, the application scope of hexagonal boron nitride nanosheets will be further expanded.

my country’s hexagonal boron nitride nanosheet industry is highly concentrated. The main manufacturers include Zhejiang Yamei Nanotechnology Co., Ltd., Xi’an Ruixi Biotechnology Co., Ltd., Changzhou Lima Drying Technology Co., Ltd., Suzhou Napu Material Technology Co., Ltd., etc. Yamei Nano is a representative enterprise of hexagonal boron nitride nanosheets in my country. It focuses on the research and development, production and sales of nanopowder materials. It has the mass production capacity of 500nm hexagonal boron nitride nanosheets, and its product sales rank first in my country.

Industry analysts said that as a nanomaterial, hexagonal boron nitride nanosheets have broad application prospects in many high-tech fields. In recent years, with the improvement of independent research and development capabilities of local enterprises, the technological maturity of my country’s hexagonal boron nitride nanosheets has further improved, and its application scope has also expanded. It is expected that in the future, my country’s market share of high-performance hexagonal boron nitride nanosheets will continue to increase.