The high thermal conductivity of boron nitride has always been the focus of scientific researchers. They mainly use the high thermal conductivity of nanometer h-boron nitride and c-boron nitride to prepare composite materials to accelerate heat dissipation. and thermal conductivity effect. The picture shows the thermal conductivity mechanism of boron nitride nanosheet composite materials. At the same time, it can solve the problem of high resistivity materials needed to avoid short circuits when thermally conductive materials are in contact with operating electrical components. Boron nitride is more suitable as a thermally conductive material than carbon nanotubes. By mixing ultrasonic exfoliated two-dimensional boron nitride nanosheets and one-dimensional cellulose nanofibers, the prepared composite has a thermal conductivity as high as 180W/(m·K), which is the highest thermal conductivity nanocomposite to date. .
Hydrogen is currently the cleanest energy source and has bright development prospects for solving air pollution problems. How to use and store hydrogen safely and effectively is the primary problem that researchers need to solve. Using melamine and boric acid as precursors, porous boron nitride nanoribbons were prepared at 900-1100°C. The specific surface area is as high as 1488m2/g, which is the largest reported specific surface area in the boron nitride family. Its hydrogen storage performance is also very excellent. .
As an advanced nanomaterial and ceramic material, the boron nitride of Tianyuan Aviation Materials has been favored by various fields for its excellent physical and chemical properties. It has been widely used in optoelectronics, environmental protection and Fields such as daily chemicals will also play a more important role. We need to develop ideas based on existing research and applications to achieve large-scale, cost-effective, zero-pollution synthesis of boron nitride nanomaterials and promote widespread application.
Source: web link