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High thermal conductive resin-Grade List-

Heat-transfer property : Test method

To valid heat-conductive effect of our thermal conductive resin, we compared heat-transfer property between PC+GF30% and the thermal conductive PC.

1. Materials
(a) PC+GF30wt% (Thermal conductivity : 0.3W/m/K)
(b) Thermal conductive PC ; TPN1122
 (Thermal conductivity ; 8.1W/m/K)

2. Test piece 100mm x 100m x 3mmt, Flat plate

3. Test conditions
> Feeding 3.2W to the rubber heater.
> Measuring the plate temperature by an infrared radiation thermometer.

Heat-transfer property : Test results

In the case of the general PC, temperature increased only at the heater contact area.
In the case of the TPN1122, heat transferred to non-heater contact area. Effects by using thermal conductive resin are as follows:

  1. Reduction of thermal distortion and thermal degradation
  2. Reduction of warpage
  3. Increase of heat radiation area

Test : Temperature wave analysis method

> The filler is oriented in the direction of resin flow.

> Thermal conductivity of MD is the highest and that of thickness direction is not so high.

CAE analysis : Conditions

Our resin is thermally-anisotropic (thermal conductivity in thickness direction is considerably-lower than those in plane directions).
We analyzed by CAE if it would be a big practical issue.

Analysis software : CAEFEMv8.3
Analysis conditions
Model shape : 100x50x3mm, Flat plate
Analysis model : Hexahedral quadratic element 20x10x3mesh
Boundary condition : Loading 0.001W/mm2 heat flux to 30mm surface from end
Initial temperature : 20℃

Material constants
(a)Anisotropic body : λx= 8W/m/K, λy= 8W/m/K,
 λz=0.4W/m/K (thickness direction)
 C=0.14J/g/K r=1.2e-3g/mm3
(b)Isotropic body : λx= 8W/m/K λy= 8W/m/K
 λz=8W/m/K C=0.14J/g/K r=1.2e-3g/mm3

CAE analysis : Results

Under this conditions, analysis result shows the temperature distribution of the anisotropic material is similar to that of the isotropic material.

It is found that low thermal conductivity in thickness direction would not be a big practical issue.


Product Info.

  • ポリカーボネート樹脂(PC樹脂)ユーピロンノバレックスザンター
  • ポリブチレン テレフタレート樹脂 (PBT樹脂) ノバデュラン
  • ポリアセタール樹脂(POM樹脂)ユピタール
  • 変性ポリフェニレン エーテル樹脂(m-PPE樹脂)ユピエースレマロイ
  • 高性能ポリアミド樹脂(PA樹脂)レニー
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