Heat-conducting wave-absorbing material
A technology of wave-absorbing materials and heat-conducting fillers, applied in the field of materials, can solve problems such as high cost and poor wave-absorbing performance, and achieve strong wave-absorbing performance and stable performance
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Embodiment 1
[0032] A heat-conducting wave-absorbing material of the present invention, the composition of the wave-absorbing material includes by mass parts:
[0033] Component A: 6-15 parts of silicone oil;
[0034] Thermally conductive filler 6-15 parts;
[0035] 70-85 parts of wave absorbing agent;
[0036] 1-5 parts of coupling agent;
[0037] B component: curing agent 10-25 parts;
[0038] 10-25 parts of catalyst;
[0039] Accelerator 1-3 parts.
[0040] A preferred technical solution of this embodiment: the thermally conductive filler includes one or more of aluminum oxide, silicon oxide, zinc oxide, magnesium oxide, calcium oxide, aluminum nitride, boron nitride, and silicon carbide for compounding .
[0041] A preferred technical solution of this embodiment: the wave absorbing agent includes one of sendust powder, iron powder and graphite powder.
[0042] A preferred technical solution of this embodiment: the coupling agent includes one of silanes, phthalates, and aluminate...
Embodiment 2
[0047] A preparation method of the heat-conducting wave-absorbing material described in any one of claims 1-7, characterized in that the preparation method comprises the following steps:
[0048] Step 1: Surface-treat the thermally conductive filler and wave absorbing agent with a coupling agent, then put the thermally conductive filler, wave absorbing agent, and silicone oil into a vacuum mixer, and stir for 0.5-2 hours to obtain component A;
[0049] Step 2: Mix the mixture of component A with the accelerator and curing agent, stir the mixed components at 25-40°C for 10-15min, then add the catalyst, continue to stir for 5-10min and stir evenly;
[0050] Step 3: inject the mixed slurry stirred in Step 2 into a calender, and cure at a constant temperature of 100°C for 5-15 minutes to obtain a heat-conducting and wave-absorbing material.
[0051] A preferred technical solution of this embodiment: the thermally conductive filler includes one or more of aluminum oxide, silicon ox...
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