Product Features
Improved Thermal Conductivity
The intrinsic thermal conductivity of alumina is much higher than that of polymer matrices. After filling, it can form thermal conduction networks in the matrix, significantly improving the overall thermal conductivity of composite materials.
Excellent Electrical Insulation
As a typical insulating ceramic material, alumina has a volume resistivity as high as about 10¹⁰ Ω·cm, ensuring no short circuits while conducting heat. It is suitable for direct contact with electronic components.
High Cost Performance & Low Cost
Compared with high-end fillers such as aluminum nitride (AlN) and boron nitride (BN), alumina has abundant raw material sources and mature production processes, with a much lower price, making it ideal for large-scale industrial applications.
Good Process Compatibility
Spherical or near-spherical alumina allows high filling ratios with low system viscosity, facilitating processing and molding.
It is highly compatible with silicone rubber, epoxy resin, polyurethane and other matrices, and can be used to produce thermal greases, pads, potting compounds, thermally conductive plastics, etc.
Enhanced Mechanical Properties
Alumina particles improve the hardness, wear resistance and compressive strength of composite materials, enhancing product durability.
Application Fields
Thermal Interface Materials (TIM): thermal pads and thermal greases between CPUs/GPUs and heat sinks.
Thermally Conductive Plastic Housings: for routers, TV boxes and other devices to achieve passive heat dissipation.
Copper-Clad Ceramic Substrates: used as insulating and thermally conductive substrates in power modules such as IGBTs.
New Energy Vehicle Battery Thermal Management: thermal gels or potting materials for electronic control systems and battery packs.
Product Parameters
|
Grade |
Chemical Composition (%) |
Physical Properties |
|||||
|
Al₂O₃ |
SiO₂ |
Fe₂O₃ |
Na₂O |
Average Particle Size (μm) |
α-Al₂O₃ (%) |
Specific Surface Area (m²/g) |
|
|
A-LP-300 |
≥99.5 |
≤0.04 |
≤0.01 |
≤0.08 |
4–5 |
≥93 |
0.2–0.6 |
|
A-LP-400 |
≥99.5 |
≤0.04 |
≤0.01 |
≤0.06 |
1.6–2.2 |
≥94 |
2–3 |
Packaging Options
- Small Pack: 25 kg per PVC bag.
- Medium Bulk (Consolidated): 1 Metric Ton per bulk bag (containing 40 × 25 kg PVC inner bags).
- Large Bulk (Loose Fill): 1 Metric Ton directly filled per bulk bag (FIBC).
- Palletized Unit: 1 Metric Ton per bulk bag secured on a pallet.
- Note: Customized packaging schemes are available upon request.
Company Advantages
FAQ
Q: What are the advantages of your company?
A: As a specialized enterprise, our company is dedicated to the R&D, manufacturing, and distribution of White Fused Alumina, Low-Sodium White Corundum, and Calcined Alumina. Supported by a robust management system and state-of-the-art crushing and granulation machinery, we have established a fully integrated industrial chain. This end-to-end capability encompasses every stage of production: from alumina raw material pretreatment and smelting to crushing, granulation, and micro-powder fabrication.
Our market reach is extensive, with products supplying key domestic regions including Guangdong, Jiangsu, Henan, Hebei, and Northeast China, alongside a growing international export presence. With a prominent standing in the sector, we combine strong market competitiveness with significant potential for future growth.
Q: Why choose us?
A: Our company has obtained ISO9001 quality management system certification, possesses independent intellectual property rights, and has production processes with national invention patents. The company has a considerable production scale, and its overall production capacity ranks among the top in the industry, capable of meeting large-scale order demands.
Q: What kind of transportation method do you adopt?
A: Land transportation, sea transportation, air transportation and other methods can be adopted, depending on the actual situation.
Q: Can you provide third-party inspection reports?
A: Yes. We can provide official third-party inspection reports. Costs and procedures shall be agreed by both parties.
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