Hexagonal Boron Nitride (h-BN) Powder — High‑Performance Additive For Thermal, Lubrication, And Advanced Materials
Apr 21, 2026
Applications
(1)Thermal Management: High‑thermal‑conductivity h‑BN fillers boost heat spread and dielectric stability in thermal interface materials (TIMs), potting compounds, grease, and thermal pastes for LEDs, power electronics, EV inverters, and telecom equipment.
(2) Dielectric Substrates & Composites: Electrically insulating yet thermally conductive, h‑BN is ideal for polymer composites, epoxy laminates, and ceramic substrates where electrical isolation and heat removal are both required.
(3) Lubricants & Release Agents: Plate‑like h‑BN particles provide excellent solid lubrication under vacuum and high temperatures, improving wear resistance in greases, dry lubricants, and metalworking fluids.
(4)High‑Temperature & Oxidation‑Resistant Coatings: h‑BN retains structure at elevated temperatures and resists oxidation, making it suitable for protective coatings, crucible liners, and refractory composites.
(5)2D Materials & Research: As an atomically flat, inert substrate, exfoliated h‑BN is used for van der Waals heterostructures, 2D electronics, and graphene encapsulation.
(6) Cosmetics & Personal Care: h‑BN's soft, lamellar particles improve spreadability, oil control, and skin feel in powders, foundations, and sunscreens.
(7)Additive Manufacturing & Ceramics: Enhances thermal stability, machinability, and processing of technical ceramics, composites, and specialty 3D‑printed parts.
(8)Sealing & Thermal Greases for Aerospace: Stable across temperature swings and chemically inert for demanding aerospace and defense uses.
Key Advantages
(1)High thermal conductivity with low dielectric constant - enables heat dissipation without electrical conduction.
(2)Excellent chemical and thermal stability - inert in most environments and retains properties at high temperatures.
(3)Superior lubricity and low friction coefficient - effective solid lubricant under extreme conditions.
(4) Wide range of particle sizes and platelet aspect ratios - tailored for dispersion, rheology, and surface finish requirements.
(5)Low density and lightweight - adds functionality without large mass penalties in composites and coatings.
(6)Good compatibility with polymers, epoxies, solvents, and ceramic processing - eases formulation and scale‑up.
(7)Low impurity levels and controlled surface chemistry - minimizes charge traps and contamination in electronics applications.
Product Options & Specifications
(1)Purity: High‑purity grades (99%+ and specialty ultra‑high purity) for electronics and research.
(2)Particle size: Nano to micron ranges; platelet and spherical morphologies.
(3)Surface treatments: Functionalized h‑BN (silane, polymer grafting) for improved dispersion and interfacial bonding.
(4)Packaging: Vacuum sealed, inert atmosphere, or moisture‑controlled packaging for sensitive grades.
(Contact us with your target application for recommended grade and datasheets.)
Frequently Asked Questions (FAQs)
Q: What makes h‑BN different from other thermal fillers like alumina or graphene?
A: h‑BN uniquely combines high in‑plane thermal conductivity with electrical insulation and chemical inertness. Unlike graphene (conductive) or alumina (lower thermal conductivity), h‑BN gives thermal performance without compromising dielectric properties.
Q: Which particle size should I choose for thermal pastes versus coatings?
A: Fine nano‑ to submicron platelets improve thermal percolation in pastes and TIMs; larger micron platelets often provide better lubricity and surface coverage for coatings. We can recommend grades based on your formulation and viscosity limits.
Q: Is h‑BN safe for cosmetic use?
A: Yes - cosmetic‑grade h‑BN is specially processed for purity and particle characteristics to provide smooth feel and oil control. Always use grades certified for personal‑care applications and follow regulatory guidance.
Q: How do I improve dispersion of h‑BN in polymers?
A: Surface‑treated h‑BN (silane coupling agents or polymer grafting), high‑shear mixing, solvent assistance, or compatibilizers help achieve stable dispersions and better interfacial bonding.
Q: Can h‑BN withstand high temperatures and oxidation?
A: h‑BN has excellent thermal stability and resists oxidation at temperatures where many lubricants fail; exact limits depend on atmosphere and application-consult our datasheet for specific grades.
Q: Do you offer custom grades or functionalization?
A: Yes. We provide custom particle sizes, purity levels, surface treatments, and packaging to match your application and processing requirements.
Q: What are typical lead times and packaging options?
A: Lead times depend on grade and quantity; typical stock grades ship within days, custom orders vary. Packaging ranges from small lab‑scale sealed pouches to bulk drums with moisture control-contact sales for details.
Contact Us
For sample requests, technical datasheets, or formulation support, contact our technical sales team. Tell us your application, target loading, and processing method so we can recommend the optimal h‑BN grade.
Shengyang New Material Co., Ltd. is committed to the production of boron nitride and boron nitride processed products, and can customize various boron nitride insulating ceramic parts according to customer needs. Contact us if necessary.
Tel:+8618560961205
WHATSAPP:+86 13964322643
Email:sales@zbsyxc.com
