A kind of rubber reinforcing filler and preparation method thereof
A technology for reinforcing fillers and rubber, which is applied in the field of rubber reinforcing fillers and its preparation, can solve the problems of high price and complicated preparation process, and achieve the effects of low cost, simple preparation process and easy cost
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Embodiment 1
[0056] 1. Taking the new minerals analyzed above as raw materials, drying and roasting at 280 ° C for 4 hours until there is no trace of organic matter in them, and then dispersing to obtain dry mineral powder;
[0057] 2. Pulverize the mineral powder under the cryogenic condition of -150℃ to make the material d 50 90 <5μm, obtain ultrafine powder;
[0058] 3. Put the obtained ultrafine powder in a multi-head ultrafine classifier under nitrogen atmosphere for classification, take the fine powder, and make the powder d. 97 max <10μm;
[0059] 4. The obtained powder was placed in a high-speed mixer lined with alumina ceramics, and in a nitrogen atmosphere, the temperature was controlled to 80°C, and the surface was modified with 0.5% silane coupling agent of the powder mass. After the body is reduced to room temperature, it is sealed and stored, that is, it is obtained.
Embodiment 2
[0061] 1. Taking the new minerals analyzed above as raw materials, drying and roasting at 450 ° C for 4 hours, until there is no trace of organic matter in them, and dispersing to obtain dry mineral powder;
[0062] 2. Pulverize the mineral powder under the cryogenic condition of -30℃ to make the material d 50 90 <5μm, obtain ultrafine powder;
[0063] 3. Put the obtained ultrafine powder in a multi-head ultrafine classifier under nitrogen atmosphere for classification, take the fine powder, and make the powder d. 97 max <10μm;
[0064] 4. The obtained powder was placed in a high-speed mixer lined with alumina ceramics, and in a nitrogen atmosphere, the temperature was controlled at 95°C, and the surface was modified with 1.0% stearic acid of the mass of the powder, and the modified powder was Store in an airtight container after cooling to room temperature.
Embodiment 3
[0066] 1. Taking the new minerals analyzed above as raw materials, drying and roasting at 350 ° C for 4 hours, until there is no trace of organic matter in them, and dispersing to obtain dry mineral powder;
[0067] 2. Pulverize the mineral powder under -100 ℃ cryogenic conditions to make the material d 50 90 <5μm, obtain ultrafine powder;
[0068] 3. Put the obtained ultrafine powder in a multi-head ultrafine classifier under nitrogen atmosphere for classification, take the fine powder, and make the powder d. 97 max <10μm;
[0069] 4. The obtained powder was placed in a high-speed mixer lined with alumina ceramics, and in a nitrogen atmosphere, the temperature was controlled to 90°C, and the surface was modified with 1.0% silane coupling agent of the powder mass. After the body is reduced to room temperature, it is sealed and stored, that is, it is obtained.
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Abstract
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