Single-component organosilicon heat-conducting glue and preparation method thereof
A technology of silicone and thermally conductive adhesives, applied in the field of thermally conductive adhesives, can solve problems such as poor high temperature oxidation resistance and flame retardancy, and achieve the effects of excellent high temperature oxidation resistance, good flame retardancy, and improved thermal conductivity.
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Embodiment 1
[0026] One-component silicone heat-conducting adhesive, by weight, is made of the following components: 30 parts of alkoxy-terminated polysiloxane, 1.5 parts of methyl hydrogen-containing polysiloxane, 0.6 parts of rare earth coupling agent, 0.9 parts of platinum catalyst, 0.1 parts of acetylenic alcohols, 9.5 parts of POE, 0.3 parts of zinc stearate, 2640.8 parts of anti-aging agent, 24 parts of magnesium oxide, and 36 parts of chromium carbide.
[0027] The steps of its preparation method are as follows:
[0028] (1) Magnesium oxide and chromium carbide were added into distilled water and stirred for 20 minutes to obtain a suspension with a mass concentration of 10%, and the rare earth coupling agent was dispersed in dehydrated alcohol and ultrasonically treated for 30 minutes to obtain a modified solution. Add liquid to the suspension and stir in a water bath at 100°C for 25 minutes, filter and wash after discharge, dry in a vacuum oven at 110°C to constant weight, and obta...
Embodiment 2
[0032] One-component silicone heat-conducting adhesive, in parts by weight, is made of the following components: 40 parts of alkoxy-terminated polysiloxane, 1 part of methyl hydrogen-containing polysiloxane, 0.8 parts of rare earth coupling agent, 0.6 parts of platinum catalyst, 0.2 parts of acetylenic alcohols, 9 parts of NBR, 0.4 parts of zinc stearate, 2641 parts of anti-aging agent, 20 parts of magnesium oxide, and 39 parts of chromium carbide.
[0033] The steps of its preparation method are as follows:
[0034] (1) Magnesium oxide and chromium carbide were added into distilled water and stirred for 20 minutes to obtain a suspension with a mass concentration of 10%, and the rare earth coupling agent was dispersed in dehydrated alcohol and ultrasonically treated for 30 minutes to obtain a modified solution. Add liquid to the suspension and stir in a water bath at 100°C for 25 minutes, filter and wash after discharge, dry in a vacuum oven at 110°C to constant weight, and ob...
Embodiment 3
[0038] One-component silicone heat-conducting adhesive, in parts by weight, is made of the following components: 35 parts of alkoxy-terminated polysiloxane, 1.4 parts of methyl hydrogen-containing polysiloxane, 1 part of rare earth coupling agent, 0.5 parts of platinum catalyst, 0.1 parts of acetylenic alcohols, 8.8 parts of POE, 0.2 parts of zinc stearate, 2640.7 parts of anti-aging agent, 25 parts of magnesium oxide, and 40 parts of chromium carbide.
[0039] The steps of its preparation method are as follows:
[0040] (1) Magnesium oxide and chromium carbide were added into distilled water and stirred for 20 minutes to obtain a suspension with a mass concentration of 10%, and the rare earth coupling agent was dispersed in dehydrated alcohol for 30 minutes to obtain a modified liquid, and the modified The solution was added to the suspension and stirred in a water bath at 100°C for 25 minutes, filtered and washed after discharging, dried in a vacuum oven at 110°C to constant...
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