Description
Spherical alumina powder has spherical and angular compact crystal structure, has good dispersibility, and organic Polymer material has good interfacial compatibility and can meet the requirements of high filling quantity. The product has narrow particle size distribution, high chemical purity, good thermal conductivity and insulation performance, and the product quality has been recognized by customers at home and abroad.
The products are mainly used in silicone and epoxy polymer materials, such as thermal insulating silicone sheet (pad), thermal silicone grease, silicone oil and epoxy potting adhesive, thermal double-sided tape, thermal plastic, electronic packaging, etc.
| Item | MODEL | SP-5 | SP-20 | SP-45 | SP-70 | SP-90 | ||||||
|
Chemical contents |
SiO2 (%) ≤ | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | ||||||
| Fe2O3 (%) ≤ | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 | |||||||
| Na2O (%) ≤ | 0.05 | 0.05 | 0.05 | 0.04 | 0.04 | |||||||
| Moisture（%）≤ | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | |||||||
|
Physical properties; |
Particle size(μm) | 5-6 | 18-22 | 45-50 | 70-80 | 90-110 | ||||||
| α-(%)≥ | 30 | 40 | 50 | 60 | 70 | |||||||
| BET(m2/g) ≤ | 1.0 | 0.8 | 0.5 | 0.3 | 0.3 | |||||||
| PH | 7.0-9.0 | 7.0-9.0 | 7.0-9.0 | 7.0-9.0 | 7.0-9.0 | |||||||
| electrical conductivity（μs/cm）≤ | 70 | 70 | 70 | 70 | 70 | |||||||
The products are mainly used in silicone and epoxy polymer materials, such as thermal insulating silicone sheet (pad), thermal silicone grease, silicone oil and epoxy potting adhesive, thermal
double-sided tape, thermal plastic, electronic packaging, etc.
Applications:
Thermal conductivity filler used in EMC, CCL,etc.
Thermal interface material.
Ceramics, Abrasive grain, Spraying material, etc.
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