As a new type of porous non-oxide material, porous boron nitride has many unique properties such as large specific surface area, adjustable pore size, chemical inertness and excellent thermal stability. It is used in catalysis, hydrogen storage, gas adsorption and separation.
Porous boron nitride is a new type of non-oxide porous material. The interior is composed of interpenetrating or closed pores. It has a high specific surface area and rich pore structure. The aperture can be adjusted according to the actual application, the chemical properties are stable, and the heat conduction. High magnification, good insulation and hydrophobic properties.
In addition, the porous boron nitride material has special hydrogenation performance and selective adsorption performance, and has great application potential in the fields of hydrogen storage, gas adsorption and separation. According to the definition of the International Union of Pure and Applied Chemistry (IUPAC), porous materials can be divided into three categories according to the pore diameter: micropores (pore diameter less than 2 nanometers), mesopores (pore diameter 2-50 nanometers) and macropores (pore diameter) more than 50 nm).
Template method
The template method is a method that uses the space restriction function of the template to control the pore structure and prepare a porous material with an orderly and relatively uniform structure.
Soft template method
The soft template method is the first method to prepare ordered mesoporous materials. Using supramolecular aggregates formed by copolymerization of amphiphilic surfactant segments as templates, the boron nitride precursors self-assemble through the interaction of non-covalent bond forces, and then pyrolyzed to obtain porous nitrogen-boron materials (Figure 1a).
Hard template
The hard template method is the most commonly used method for preparing ordered mesoporous boron nitride materials. Using the porous solid as a template, the boron nitride precursor is introduced into the pores by impregnation, boron nitride is synthesized by pyrolysis, and the hard template is removed to obtain a porous boron nitride material with corresponding pore structure (Figure 1b).
Overview of boron nitride
Boron nitride industrial powder is a pure white ceramic material with a hexagonal crystal structure similar to graphite.Boron nitride can withstand temperatures exceeding 2,000°C,and depending on the grade,its dielectric strength is close to 1000 volts/mil.Boron nitride is hot-pressed in the form of billets,which can be easily processed into rods, bars,plates and even customized shapes .
Application of boron nitride
1.Release agent for metal forming and lubricant for metal drawing.
2.Special electrolysis and resistance materials in high temperature state.
3.High-temperature solid lubricants,extrusion anti-wear additives,additives for the production of ceramic composite materials,refractory materials and antioxidant additives,especially in the case of corrosion resistance of molten metals,heat-enhanced additives,high-temperature insulation materials.
4.Heat-sealing desiccant for transistors and additives for polymers such as plastic resins.
5.Pressed into various shapes of boron nitride products,which can be used as high temperature,high pressure,insulation and heat dissipation parts.
6.Thermal shielding materials in aerospace.
7.With the participation of catalysts,it can be converted into cubic boron nitride that is as hard as diamond after high temperature and high pressure treatment.
8.The structural materials of the atomic reactor.
9.Aircraft,rocket engine nozzle.
10.Insulator for high-voltage and high-frequency electricity and plasma arc.
11.Packaging materials to prevent neutron radiation.
12.The superhard material made by boron nitride processing can be made into high-speed cutting tools and drill bits for geological exploration and oil drilling.
13.Separation ring for continuous cast steel in metallurgy,flow slot for amorphous iron, release agent for continuous cast aluminum(various optical glass release agents)
14.Make all kinds of evaporation boats for capacitor film aluminum plating,picture tube aluminum plating,display aluminum plating, etc.
15.Various fresh-keeping aluminum-plated packaging bags,etc.
16.All kinds of laser anti-counterfeiting aluminum plating,brand hot stamping materials,all kinds of cigarette labels,beer labels,packaging boxes,cigarette packaging boxes,etc.
17.The filler used in cosmetics for lipstick is non-toxic,lubricating and shiny.
In terms of optical applications,due to the high hardness of the c-BN film and the high transmittance of the entire wavelength range from ultraviolet(from about 200 nm)to far infrared,it is suitable as a surface coating for some optical components, and is particularly suitable as Coating of window materials such as zinc selenide(ZnSe)and zinc sulfide(ZnS).In addition,it has good thermal shock resistance and hardness,and is expected to become an ideal window material for high-power lasers and detectors.
The price of boron nitride
The price of boron nitride will vary randomly with production costs,transportation costs, international conditions,and market supply and demand of boron nitride.Tanki New Materials Co., Ltd aims to help all industries and chemical wholesalers find high quality by providing a full set of customized services,Low-priced nanomaterials and chemicals. If you are looking for boron nitride, please feel free to send an inquiry to get the latest price.
Suppliers of Boron Nitride
As a global boron nitride supplier,Tanki New Materials Co.,Ltd has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials.The company has successfully developed a series of powder materials(titanium nitride,nitride Silicon,titanium nitride,etc.)high-purity targets,functional ceramics and structural devices, and provide OEM services.
| Chemical Composition of Boron Nitride BN powder: | |||||
| BN | MgO | Na2O | Fe2O3 | CuO | MnO |
| 99% | 0.07% | 0.08% | 0.06% | 0.01% | 0.03% |
| Technical Parameter of Boron Nitride BN powder: | ||||||
| Product Name | MF | Purity | Particle Size | Melting Point | Density (g/cm3) | Color |
| boron nitride | BN | 99% | 100nm, 500nm,3-5um | 3000℃ | 2.29 | white |
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