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Magnesite material and preparation method thereof

A magnesite material and raw material technology, applied in the field of magnesite material and its preparation, can solve problems such as poor water resistance, easy to bloom, poor mechanical properties, etc., to avoid deformation and cracks, reduce bleeding, and avoid moisture absorption and return The effect of halogen

Inactive Publication Date: 2018-06-12
雷春生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: aiming at the problems of poor water resistance, easy frosting and poor mechanical properties of traditional magnesite materials, a magnesite material and its preparation method are provided

Method used

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  • Magnesite material and preparation method thereof

Examples

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Effect test

example 1

[0023]Add sodium alginate and water into the beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the beaker into a magnetic stirrer with a digital speed measurement and constant temperature at a temperature of 100°C and a speed of 500r Under the condition of heating and stirring for 50 min, the sodium alginate solution is obtained; the walnut shells are put in a ball mill, pulverized by ball milling, and passed through an 80-mesh sieve to obtain walnut shell powder; the walnut shell powder is placed in a carbonization furnace, and Fill the furnace with nitrogen gas at 60mL / min, and at a temperature of 650°C, under the condition of nitrogen protection, keep warm and carbonize for 2 hours, and then cool down to room temperature with the furnace to obtain carbonized walnut shell powder; mix the carbonized walnut shell powder with saturated hydrogen The calcium oxide solution was placed in a three-necke...

example 2

[0025] Add sodium alginate and water into the beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the beaker into a magnetic stirrer with a digital speed measurement and constant temperature at a temperature of 100°C and a speed of 500r Under the condition of heating and stirring for 50 min, the sodium alginate solution is obtained; the walnut shells are put in a ball mill, pulverized by ball milling, and passed through an 80-mesh sieve to obtain walnut shell powder; the walnut shell powder is placed in a carbonization furnace, and Fill the furnace with nitrogen gas at 60mL / min, and at a temperature of 650°C, under the condition of nitrogen protection, keep warm and carbonize for 2 hours, and then cool down to room temperature with the furnace to obtain carbonized walnut shell powder; mix the carbonized walnut shell powder with saturated hydrogen The calcium oxide solution was placed in a three-neck...

example 3

[0027] Add sodium alginate and water into the beaker at a mass ratio of 1:100, stir and mix with a glass rod for 30 minutes, let it stand for swelling for 4 hours, and then move the beaker into a magnetic stirrer with a digital speed measurement and constant temperature at a temperature of 100°C and a speed of 500r Under the condition of heating and stirring for 50 min, the sodium alginate solution is obtained; the walnut shells are put in a ball mill, pulverized by ball milling, and passed through an 80-mesh sieve to obtain walnut shell powder; the walnut shell powder is placed in a carbonization furnace, and Fill the furnace with nitrogen gas at 60mL / min, and at a temperature of 650°C, under the condition of nitrogen protection, keep warm and carbonize for 2 hours, and then cool down to room temperature with the furnace to obtain carbonized walnut shell powder; mix the carbonized walnut shell powder with saturated hydrogen The calcium oxide solution was placed in a three-neck...

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Abstract

The invention discloses a magnesite material and a preparation method thereof, and belongs to the technical field of waterproof materials. The preparation method comprises the steps that walnut shellsare ball-milled, smasheding and sieveding are carried out, and walnut shell powder is obtained; the walnut shell powder is subjected to nitrogen charging, heat preservation, carbonization and then cooling, and carbonized walnut shell powder is obtained; the carbonized walnut shell powder is stirred to be mixed with a saturate calcium hydroxide solution, and mixed slurry is obtained; carbon dioxide is injected into the mixed slurry, and pre-treated carbonized walnut shell powder is obtained after filtering and drying are conducted; the pre-treated carbonized walnut shell powder is fumigated with nitrogen containing trimethylaluminum, and modified carbonized walnut shell powder is obtained; light calcined magnesia powder, magnesium chloride hexahydrate, a filler, water, sodium alginate liquid, the modified carbonized walnut shell powder and a silane coupling agent are subjected to ultrasonic dispersion, and dispersed slurry is obtained; and the dispersed slurry, ammonium nitrate, blue vitriol and an emulgator are stirred to be mixed, and the magnesite material is obtained. The magnesite material has excellent hydrolytic resistance and mechanical properties, and the problems of moisture absorption back to halogen and scumming and baring of the system can be effectively avoided.

Description

technical field [0001] The invention discloses a magnesite material and a preparation method thereof, belonging to the technical field of waterproof materials. Background technique [0002] Magnesite products are inorganic chemical products that use magnesium oxide as the cementing material, magnesium chloride as the blending agent, and various fillers. Its outstanding advantages are: ①Ultra-high strength of 70-140 MPa, which is 2-2 MPa of Portland cement. 3 times; ② High fire resistance. Melting point 2270°C; ③High wear resistance. The abrasion resistance is 1 to 2 times that of cement; ④ fast setting. Products 6 ~ 24h demoulding; ⑤ light; ⑥ high gloss. With appropriate technology, imitation porcelain and imitation glass products with more than 90 gloss units can be produced; ⑦The bulk density is 1 / 4 lower than that of ordinary Portland cement. Therefore, it is especially suitable for the production of high strength, high fire resistance, high wear resistance, high glos...

Claims

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Application Information

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IPC IPC(8): C04B28/32C04B38/02C04B111/27C04B111/28C04B111/40C04B111/80
CPCC04B28/32C04B2111/27C04B2111/28C04B2111/40C04B2111/80C04B2201/50C04B22/066C04B22/12C04B22/085C04B18/146C04B18/08C04B14/022C04B22/142C04B24/42C04B24/38C04B22/064C04B22/06C04B24/40C04B24/283C04B38/02
Inventor 陈根旺殷小祥陈龙
Owner 雷春生
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