The EUROLINE company has developed a new heat-conducting material of the KPT-1 brand, which differs from existing materials in its higher thermal conductivity.
This material is produced in the form of sheets with a thickness of 0.5 to 2 mm and paste. It contains in its composition as a filler an ultrafine powder of hexagonal graphite with a particle size of up to 200 nm. As a binder, as in other NOMACON heat-conducting materials, silicone rubber is used, which provides high heat resistance, long service life and maximum contact area of mating surfaces. Such a heterogeneous structure of the material is characterized by the presence of interparticle contacts that form "thermal bridges" in the polymer matrix, which significantly reduces thermal resistance.
The use of reinforcing glass fibers in the sheet material provides high mechanical strength during installation, the absence of metal contact between surfaces at a compression force of up to 25 MPa.
This material is recommended for use in heat dissipation devices where high electrical resistance is not required.
If necessary, an adhesive layer is applied to the surface of the sheet material, which facilitates installation and does not cause a significant effect on thermal resistance.
KPT materials have the following advantages:
- Absolute safety, low reactivity;
- Do not react with moisture, chemicals;
- With a significant increase in temperature, they do not dry out, do not emit toxic components;
- They prevent the appearance of corrosion, are characterized by good adhesion to metal, ceramic surfaces.
| Specifications of KPT-1 | |
| - color | black |
| - thickness, mm | 0.20-2.00 mm |
| - coefficient of thermal conductivity, W/(m K) | 2,5-2,7 |
| - stickiness, N/m, not less than | 100 |
| - rated operating stress of compression, MPa, not less than | 3,5 |
| - ultimate compressive stress, MPa, not less than | 25 |
| - electrical strength, kV/mm, material 1.0 mm thick, not less than: | |
| - constant pressure | 1,0 |
| - AC voltage | 1,0 |
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