CN115974460A - Solid waterproof additive based on magnesium oxide powder mixing ratio and mixing ratio method - Google Patents
Solid waterproof additive based on magnesium oxide powder mixing ratio and mixing ratio method Download PDFInfo
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- CN115974460A CN115974460A CN202211376639.0A CN202211376639A CN115974460A CN 115974460 A CN115974460 A CN 115974460A CN 202211376639 A CN202211376639 A CN 202211376639A CN 115974460 A CN115974460 A CN 115974460A
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Abstract
A solid waterproof additive based on a magnesium oxide powder mixing ratio is prepared by the following steps: s1, selecting raw materials, namely selecting white carbon black, high-hydrogen-content organic silicon resin and ultrafine powder grade talc raw materials; s2, pouring the white carbon black, the high-hydrogen-content organic silicon resin and the ultrafine powder grade talc raw materials into a reaction kettle according to a certain proportion, mixing and stirring for 30min to obtain mixed material slurry; s3, drying the mixed slurry at high temperature to obtain a solid material; s4, pouring the solid material into a jaw crusher, and crushing the solid material into granular material; and S5, ball milling the particle materials to obtain the powdery solid waterproof additive.
Description
Technical Field
The invention relates to the technical field of solid waterproof additives, in particular to a solid waterproof additive based on a magnesium oxide powder mixing ratio.
Background
The main components of the waterproof material in the prior electrical grade magnesium oxide are liquid organic silicon and organic silicon resin, which have good insulating property, but have the problems of low temperature resistance, high carbon content, easy smoke generation at high temperature and large smoke amount.
Along with the improvement of the living quality standard of people, the requirements of good insulativity, high temperature resistance and less smoke are needed. Based on the solid waterproof additive, the corresponding magnesium oxide powder is prepared
Therefore, aiming at the defects in the prior art, it is necessary to provide a solid waterproof additive based on the mixing ratio of magnesium oxide powder to solve the defects in the prior art.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provides the solid waterproof additive based on the mixing ratio of the magnesium oxide powder.
The above object of the present invention is achieved by the following means.
The preparation method of the solid waterproof additive based on the mixing ratio of the magnesium oxide powder comprises the following steps:
s1, selecting raw materials, namely selecting white carbon black, high-hydrogen-content organic silicon resin and ultrafine powder grade talc raw materials;
s2, pouring the white carbon black, the high-hydrogen-content organic silicon resin and the ultrafine powder grade talc raw materials into a reaction kettle according to a certain proportion, mixing and stirring for 30min to obtain mixed material slurry;
s3, drying the mixed slurry at a high temperature to obtain a solid material;
s4, pouring the solid material into a jaw crusher, and crushing the solid material into granular material;
and S5, ball milling the particle materials to obtain the powdery solid waterproof additive.
Specifically, the preparation method of the ultrafine powder grade talc raw material in the step S1 is as follows:
s11, selecting a talc raw material;
s12, crushing the talc raw material by a hammer crusher;
s13, putting the crushed talc raw material into a dryer for drying;
and S14, finally, carrying out ultrafine grinding on the dried talc raw material to obtain an ultrafine-grade talc raw material.
Preferably, in the step S2, the white carbon black, the high hydrogen-containing organic silicon resin and the superfine powder grade talc are poured into the reaction kettle according to the proportion of 8-15 parts to 80-120 parts to 3-9 parts.
Specifically, in the step S3, the mixed slurry is baked for 4 to 12 hours at the temperature of between 180 and 250 ℃.
Furthermore, the mesh number of the powdery solid additive monomer is 500-1200 meshes. The solid waterproof additive prepared by the invention has good insulativity and high temperature resistance, and can meet the requirement of low smoke quantity. Based on the solid waterproof additive, the corresponding magnesium oxide powder is prepared.
Detailed Description
The invention is further described with reference to the following examples.
Example 1.
A solid waterproof additive based on a magnesium oxide powder mixing ratio is prepared by the following steps:
s1, selecting raw materials, namely selecting fumed silica, high-hydrogen-content organic silicon resin and superfine powder grade talc raw materials.
The preparation method of the superfine powder grade talc raw material in the step S1 comprises the following steps:
s11, selecting a talc raw material which is magnesium silicate ore, wherein the content of magnesium oxide is 43% -45%, the content of silicon dioxide is 43% -45%, and the structure is fibrous.
S12, crushing the talc raw material by a hammer crusher, wherein the processing particle size of the crusher D90=22.25 μm.
And S13, putting the crushed talc raw material into a dryer for drying.
And S13, drying the substance obtained in the step S13 for 2 hours at the high temperature of 800-900 ℃ by using a high-temperature rotary furnace, wherein the loss on ignition of the magnesium silicate after high-temperature calcination is less than or equal to 1 percent.
And S14, finally, carrying out superfine grinding on the dried talc raw material to obtain the superfine talc raw material.
S2, pouring the white carbon black, the high-hydrogen-content organic silicon resin and the ultrafine powder grade talc raw materials into a reaction kettle according to a certain proportion, mixing and stirring for 30min to obtain mixed material slurry.
In the step S2, the fumed silica, the high hydrogen-containing organic silicon resin, the 120# solvent oil and the superfine powder grade talc raw materials are mixed according to the mass ratio of 100: the ratio of 50.
The high hydrogen-containing organic silicon resin, the fumed silica, the 120# solvent oil and the magnesium silicate powder are sequentially put in this order, so that the light overflow of the white silica is prevented.
And S3, drying the mixed slurry at a high temperature to obtain a solid material.
And S3, drying the mixed slurry for 4 to 12 hours in a drying oven at the temperature of between 180 and 250 ℃.
The mixed materials must be kept warm by a drying oven until the smelted materials are solidified and hard. And a silicon-carbon rod or silicon-molybdenum rod oven cannot be used, so that combustion is avoided.
S4, pouring the solid material into a jaw crusher, and crushing into 0.5-1mm granular material.
And S5, carrying out jet milling treatment on the particle materials to 1000 meshes to obtain the powdery solid waterproof additive.
The system is cleaned by the air flow mill, the material size needs to be strictly controlled, and the problems that the size of particles is large, equipment is damaged or the particles are unqualified after being crushed are avoided.
The powder solid additive has 500-1200 mesh.
The solid waterproof additive prepared by the invention has good insulativity and high temperature resistance, and can meet the requirement of small smoke quantity. Based on the solid waterproof additive, the corresponding magnesium oxide powder is prepared.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The solid waterproof additive based on the mixing ratio of the magnesium oxide powder is characterized in that: the preparation method comprises the following steps:
s1, selecting raw materials, namely selecting white carbon black, high-hydrogen-content organic silicon resin and superfine powder grade talc raw materials;
s2, pouring the white carbon black, the high hydrogen-containing organic silicon resin, the No. 120 solvent oil and the superfine powder grade talc raw materials into a high-speed mixer according to a certain proportion, and mixing and stirring for 60min to obtain mixed slurry;
s3, drying the mixed slurry at high temperature to obtain a solid material;
s4, pouring the solid material into a jaw crusher, and crushing into particle materials;
and S5, ball milling the particle materials to obtain the powdery solid waterproof additive.
2. The solid waterproof additive based on the mixing ratio of the magnesium oxide powder according to claim 1 is characterized in that: the preparation method of the superfine powder grade talc raw material in the step S1 comprises the following steps:
s11, selecting a talc raw material;
s12, crushing the talc raw material by a hammer crusher;
s13, putting the crushed talc raw material into a dryer for drying;
and S14, finally, carrying out superfine grinding on the dried talc raw material to obtain the superfine talc raw material.
3. The solid waterproof additive based on the mixing ratio of the magnesium oxide powder according to claim 2, which is characterized in that: in step S2, the high hydrogen-containing silicone resin, fumed silica, 120# solvent oil and ultrafine powder grade talc raw materials are mixed according to a ratio of 100: and pouring the mixture into a high-speed mixer according to the mass ratio of 50.
4. The solid waterproof additive based on the mixing ratio of the magnesium oxide powder according to claim 3 is characterized in that: and S3, drying the mixed slurry in a drying box for 4-12 hours at the temperature of 180-250 ℃.
5. The solid waterproof additive based on the mixing ratio of the magnesium oxide powder according to claim 4 is characterized in that: the mesh number of the powdery solid additive monomer is 500-1200 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211376639.0A CN115974460A (en) | 2022-11-04 | 2022-11-04 | Solid waterproof additive based on magnesium oxide powder mixing ratio and mixing ratio method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211376639.0A CN115974460A (en) | 2022-11-04 | 2022-11-04 | Solid waterproof additive based on magnesium oxide powder mixing ratio and mixing ratio method |
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| CN115974460A true CN115974460A (en) | 2023-04-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB647713A (en) * | 1946-07-30 | 1950-12-20 | Rhone Poulenc Sa | Improvements in or relating to waterproof coatings |
| CN103971786A (en) * | 2013-12-27 | 2014-08-06 | 上海实业振泰化工有限公司 | Electric-grade organic coating high-temperature-resistant insulating magnesia powder for electric ovens and production method of electric-grade organic coating high-temperature-resistant insulating magnesia powder |
| CN105273619A (en) * | 2015-10-19 | 2016-01-27 | 重庆南方漆业有限公司 | High-temperature organic silicon coating and preparation method thereof |
| CN108219508A (en) * | 2018-02-07 | 2018-06-29 | 大石桥市美尔镁制品有限公司 | A kind of barrier material and its preparation method and application |
| CN108584997A (en) * | 2018-07-11 | 2018-09-28 | 营口松辽镁业有限公司 | A kind of preparation method of magnesium oxide powder for fire-proof cable |
| CN110256870A (en) * | 2019-07-17 | 2019-09-20 | 辽宁嘉顺化工科技有限公司 | A kind of damp-proof anti-high voltage high temperature electrician preparation process of magnesia and process units |
-
2022
- 2022-11-04 CN CN202211376639.0A patent/CN115974460A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB647713A (en) * | 1946-07-30 | 1950-12-20 | Rhone Poulenc Sa | Improvements in or relating to waterproof coatings |
| CN103971786A (en) * | 2013-12-27 | 2014-08-06 | 上海实业振泰化工有限公司 | Electric-grade organic coating high-temperature-resistant insulating magnesia powder for electric ovens and production method of electric-grade organic coating high-temperature-resistant insulating magnesia powder |
| CN105273619A (en) * | 2015-10-19 | 2016-01-27 | 重庆南方漆业有限公司 | High-temperature organic silicon coating and preparation method thereof |
| CN108219508A (en) * | 2018-02-07 | 2018-06-29 | 大石桥市美尔镁制品有限公司 | A kind of barrier material and its preparation method and application |
| CN108584997A (en) * | 2018-07-11 | 2018-09-28 | 营口松辽镁业有限公司 | A kind of preparation method of magnesium oxide powder for fire-proof cable |
| CN110256870A (en) * | 2019-07-17 | 2019-09-20 | 辽宁嘉顺化工科技有限公司 | A kind of damp-proof anti-high voltage high temperature electrician preparation process of magnesia and process units |
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