High-heat-conductivity organic silicon composite material and preparation method thereof
A composite material, silicone technology, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of short service life, easy volatility, damage to electronic components, etc., to improve thermal conductivity, non-corrosive, Good bond strength
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[0030] A method for preparing a high thermal conductivity silicone composite material, comprising the following steps:
[0031] A component:
[0032] Step 1: Use a coupling agent to treat the surface of the thermally conductive filler, stir and disperse it, so that the surface of the thermally conductive filler is evenly coated with a layer of coupling agent, and enhance the compatibility between the filler and the silicone resin matrix;
[0033] Step 2: Put the treated thermally conductive filler, silicone resin, and curing agent into a disperser for mixing, and stir and disperse for 1 to 60 minutes;
[0034] Step 3: Encapsulate the mixed materials;
[0035] B component:
[0036] Step 1: Use a coupling agent to treat the surface of the thermally conductive filler, stir and disperse it, so that the surface of the thermally conductive filler is evenly coated with a layer of coupling agent, and enhance the compatibility between the filler and the silicone resin matrix;
[003...
Embodiment
[0039] Embodiment: including four embodiments
[0040] The proportioning of each raw material in its A component is:
[0041] Table 1
[0042] Element
Example 1
Example 2
Example 3
Example 4
Silicone resin
30
15
11
9
Heat conduction agent
67.7
82.7
86.7
88.7
Hardener
0.3
0.3
0.3
0.3
Other additives
2
2
2
2
[0043] The raw material formulations of the four examples in Table 1 were prepared according to the preparation method of component A in the above preparation method.
[0044] The proportioning of each raw material in its B component is:
[0045] Table 2
[0046] Element
Example 1
Example 2
Example 3
Example 4
Silicone resin
30
15
11
9
Heat conduction agent
67.7
82.7
86.7
88.7
Hardener
0.3
0.3
0.3
0.3
Other additives
2
2
2
2
...
PUM
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