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Modification treatment method of silicon carbide micropowder

A technology of silicon carbide micropowder and processing technology, which is applied in the direction of silicon carbide, carbide, etc., can solve the problems of insufficient modification effect and single function, achieve good compatibility and adhesion, change the dispersion state, and realize secondary modified effect

Inactive Publication Date: 2018-07-10
凤阳力拓新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of them use silane coupling agent and other components to carry out surface modification treatment. Although some effects have been achieved, the effect of modification due to single function is still not satisfactory to people.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A modification treatment process of silicon carbide micropowder, comprising the steps of:

[0025] (1) Preparation of modified treatment solution:

[0026] a. Take the following materials in parts by weight: 5 parts of magnesium aluminum silicate, 4 parts of magnesium lithium silicate, 3 parts of magnesium sodium silicate, 2 parts of sodium alginate, 1 part of konjac gum, 90 parts of water;

[0027] b. Put all the raw materials weighed in operation a into the stirring tank, heat to keep the temperature in the stirring tank at 50°C, stir for 45 minutes and take out the modified treatment liquid A for later use;

[0028] c. Mix methyl behenate and glycerin into the reactor according to the molar ratio of 2.7:1, then add potassium hydroxide with a total mass of 2.2%, stir continuously for 30 minutes, and then add behenate into the reactor The total mass of methyl ester is 17% isomeric tridecyl alcohol polyoxyethylene ether, 7% polyethylene glycol, 3% sodium cetylbenzenesu...

Embodiment 2

[0040] A modification treatment process of silicon carbide micropowder, comprising the steps of:

[0041] (1) Preparation of modified treatment solution:

[0042] a. Take the following materials by weight: 7 parts of magnesium aluminum silicate, 6 parts of magnesium lithium silicate, 5 parts of magnesium sodium silicate, 4 parts of sodium alginate, 2 parts of konjac gum, 95 parts of water;

[0043] b. Put all the raw materials weighed in operation a into the stirring tank together, heat to keep the temperature in the stirring tank at 53°C, and take out the modified treatment solution A after stirring for 48 minutes;

[0044] c. Mix methyl behenate and glycerin into the reactor according to the molar ratio of 2.9:1, then add potassium hydroxide with a total mass of 2.4%, stir continuously for 33 minutes, then add behenate into the reactor 20% isomeric tridecyl alcohol polyoxyethylene ether, 9% polyethylene glycol, 4% sodium cetylbenzenesulfonate, 0.6% dimethyl carbonate, 6% fu...

Embodiment 3

[0056] A modification treatment process of silicon carbide micropowder, comprising the steps of:

[0057] (1) Preparation of modified treatment solution:

[0058] a. Take the following materials by weight: 8 parts of magnesium aluminum silicate, 7 parts of magnesium lithium silicate, 6 parts of magnesium sodium silicate, 5 parts of sodium alginate, 3 parts of konjac gum, 100 parts of water;

[0059] b. Put all the raw materials weighed in operation a into the mixing tank, heat to keep the temperature in the mixing tank at 55°C, and take out the modified treatment solution A after stirring for 50 minutes;

[0060] c. Mix methyl behenate and glycerin into the reaction kettle according to the molar ratio of 3.0:1, then add potassium hydroxide with a total mass of 2.5%, stir continuously for 35 minutes, and then add behenate into the reaction kettle 21% isomeric tridecyl alcohol polyoxyethylene ether, 10% polyethylene glycol, 5% sodium cetylbenzenesulfonate, 0.7% dimethyl carbona...

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PUM

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Abstract

The invention discloses a modification treatment method of silicon carbide micropowder. The modification treatment method comprises (1) preparation of a modification treatment liquid, (2) modificationtreatment, and (3) drying treatment. The method specially modifies the silicon carbide micropowder, effectively improves the surface quality characteristics of the silicon carbide micropowder, enhances the uniformity and stability of the dispersion and improves the weather resistance. The treated silicon carbide micropowder has strong stability and good use effects and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of silicon carbide processing technology, and in particular relates to a modification process of silicon carbide powder. Background technique [0002] Silicon carbide powder is widely used as abrasive or filler in ceramic fine grinding tools, resin polishing wheels and diamond polishing wheels. Due to its excellent properties such as high strength, high hardness, outstanding oxidation resistance and wear resistance, silicon carbide micropowder is also widely used in non-grinding applications such as refractory materials, engineering ceramics and structural materials. At present, silicon carbide powder has become the main raw material for the development of modern national defense, modern industry and high-tech. Due to the irregular shape and large surface energy of silicon carbide micropowder below fine particle size (10μm), it is easy to cause agglomeration and form secondary particles, which makes it diff...

Claims

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Application Information

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IPC IPC(8): C01B32/956
CPCC01P2006/40
Inventor 丁飞飞
Owner 凤阳力拓新型材料有限公司
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