Boron Nitride Platelet Powder
- Custom and standard options available.
- Fast lead times guaranteed.
- High performance at a competitive price.
Boron Nitride Platelet Powder uniquely combines high thermal conductivity, electrical insulation, and stability to ~850°C. Used in electronics thermal management, thermally conductive fillers (polymers, greases, gap pads), release agents, composites, and cosmetics.NexusX Advanced Materials, as a premier manufacturer and supplier of high-quality. Boron Nitride (BN) products, focuses on producing high-precision aluminum nitride silicon structural compenents through advanced technologies for diverse application fields.
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Boron Nitride Platelet Powder Date Sheet
Purity | 99% or 99.5% |
Particle Size: | 0.5 μm, 1-2 μm, 3-5 μm, 5-10 μm, 10-15 μm, 15-20 μm, 20-30 μm, or customized according to specific requirements. |
Color: | White |
Melting Point: | 2937 ℃ |
Density | 1.9-2.2 g/cm3 |
Dielectric Constant: | 4.3 |
Dielectric Strength: | 80 kV/mm |
Thermal Conductivity: | 300 W/mK |
Boron Nitride Platelet Powder Descriptions
Boron Nitride Platelet Powder consists of high-purity hexagonal boron nitride (h-BN) crystals shaped as thin, flat plates or flakes. This unique platelet morphology provides anisotropic thermal conductivity—efficient heat spreading along the plane of each platelet—while maintaining excellent electrical insulation. The powder is inherently lubricious, chemically stable at high temperatures (up to ~850°C in air), and resistant to oxidation and corrosion. It is widely used as a thermally conductive filler for polymers, greases, and thermal interface materials, as well as in release coatings, ceramic composites, and specialty cosmetic products requiring smooth texture and adherence.
Boron Nitride Platelet Powder Specifications
Product | Average Particle Size D50 (μm) | Specific Surface Area (㎡/g) | Dispersion Properties |
BN-1 | ＜1 | 14 | General Purpose |
BN-3 | 3 | 8 | General Purpose |
BN-6 | 6 | 7 | General Purpose |
BN-8 | 8 | 5 | General Purpose |
BN-12 | 12 | 2 | General Purpose |
BN-20 | 20 | 1 | General Purpose |
Boron Nitride Platelet Powder Advantages
- High Thermal Conductivity – Exhibits excellent in-plane thermal conductivity, effectively dissipating heat for thermal management materials (e.g., thermal pads, greases).
- Excellent Electrical Insulation – High volume resistivity and dielectric strength, suitable for insulating layers in high-voltage or high-frequency electronic devices.
- Low Dielectric Constant & Low Dielectric Loss – Maintains stable dielectric performance in microwave and millimeter-wave bands, making it an ideal filler for 5G/6G communication substrates and antenna materials.
- Lubricity & Release Properties – The graphite-like layered structure provides natural lubrication, reducing friction coefficient and serving as a high-temperature release agent.
- High-Temperature Stability – Withstands up to ~900°C in air and over 2000°C in inert atmospheres, with low thermal expansion coefficient and high thermal shock resistance.
- Chemical Inertness – Resists most acids, bases, molten metals, and salts, making it suitable for corrosive environments or as a protective coating filler.
- Platelet Morphology for Reinforcement – The platelet shape improves gas barrier properties and mechanical anisotropy of composites while reducing micro-crack propagation in the matrix.
- Low Density – Reduces overall composite weight compared to metal or ceramic fillers, supporting lightweight design.
- Easy Processing & Dispersibility – Can be dispersed in polymers or solvents via ultrasonication or ball milling, facilitating the production of films, coatings, or injection-molded parts.
- Biocompatibility – Non-toxic and non-cytotoxic, suitable for biomedical composites or medical device coatings.
Boron Nitride Platelet Powder Applications
- Thermal Interface Materials (TIMs) – Used as a thermally conductive but electrically insulating filler in thermal pads, pastes, greases, and gap fillers for electronics cooling.
- 5G/6G High-Frequency Substrates – Ideal for low-dielectric-loss antenna substrates, printed circuit boards (PCBs), and RF components due to its stable dielectric properties at high frequencies.
- High-Temperature Release Coatings – Applied as a non-stick, lubricious coating for molds, conveyor belts, and processing equipment in metal, glass, and polymer manufacturing.
- High-Temperature Lubricants – Used in dry powder form or as an additive to greases and oils for lubricating components operating under extreme temperatures (e.g., bearings, gears, fasteners).
- Advanced Polymer Composites – Incorporated into thermoplastics and thermosets to enhance thermal conductivity, wear resistance, and dimensional stability while maintaining electrical insulation.
- Ceramic & Metal Matrix Composites – Added to improve thermal shock resistance, machinability, and lubricity of ceramic or metal parts (e.g., cutting tools, nozzles, crucibles).
- Encapsulation & Potting Compounds – Used in electronic encapsulation to dissipate heat from sensitive components without creating electrical short circuits.
- Cosmetic & Personal Care Products – Acts as a soft-focus, oil-absorbing powder with a silky feel in products like pressed powders, foundations, and sunscreens.
Boron Nitride Platelet Powder Packaging
The Boron Nitride Modified Platelet Powder is carefully placed in wooden cases or cartons with additional support from soft materials to prevent any shifting during transportation. This packaging method guarantees the integrity of the products throughout the delivery process.
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- SAFETY DATA SHEET (SDS) -Boron Nitride Platelet Powder
FAQ
What is Boron Nitride Platelet Powder?
Boron Nitride Platelet Powder is a ceramic powder with a hexagonal layered structure, where each particle is thin and flake-like. It combines high thermal conductivity with electrical insulation and is widely used in composites for electronics cooling and high-temperature lubrication.
What are the main advantages of Boron Nitride Platelet Powder?
Key advantages include high thermal conductivity, electrical insulation, low dielectric loss, high-temperature stability (up to 900°C in air), chemical inertness, self-lubrication, low density, and easy dispersion in polymer matrices.
How is Boron Nitride Platelet Powder used in thermal management?
It is used as a thermal filler in thermal pads, pastes, and potting compounds. Its high in-plane thermal conductivity creates fast heat paths to sinks while maintaining electrical isolation of electronic components.
Can Boron Nitride Platelet Powder be used in high-temperature applications?
Yes. It is stable up to 900°C in air and over 2000°C in inert atmospheres, commonly used in high-temperature release coatings, high-temperature lubricants, and metal matrix composites.
How do you disperse Boron Nitride Platelet Powder into polymers or solvents?
Dispersion can be achieved via ultrasonication, three-roll milling, or high-shear mixing into epoxy, silicone, or polyimide matrices, as well as into solvents like ethanol or NMP.
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