Nano silica dioxide heat-insulating material and preparation method thereof
A technology of nano-silica and heat-insulating materials, applied in the field of nano-silica heat-insulating materials and its preparation, silicon dioxide heat-insulating materials and its preparation, can solve the problems of complex preparation process, poor environmental friendliness, and many organic components. Achieve the effects of simple preparation process, good environmental friendliness and low preparation cost
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[0021] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.
[0022] Such as figure 1 Shown is a flowchart of an embodiment of a method for preparing nano-silica thermal insulation material of the present invention, and the method includes:
[0023] Step 101: Mix 60-100% by weight of nano-silica powder, 0-35% by weight of reinforcing fibers and 0-30% by weight of infrared sunscreen and put them into a closed mixer. ;
[0024] Among them, the weight percentage of the nano-silica powder put into the closed mixer is 70-98%, the weight percentage of the reinforcing fiber is 2-25%, and the weight percentage of the infrared sunscreen is 0 -25%; the above-mentioned silica powder can be flame silica fume, fumed silica, biological silica, silica aerogel powder, hollow fiber silica prepared by asbestos acid etching, etc., and it can be Commercially available products, such as Aerosi1812 from Degussa, hav...
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