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Multi-component pore forming technology for inorganic water storage material

A water storage material and multi-component composite technology, which is applied in the field of material pore-forming technology and water-storage material multi-component composite pore-forming technology, can solve the problems of low water absorption, expensive pore-forming agent, and large environmental impact, and achieve high water absorption The effect of volume and water absorption speed

Inactive Publication Date: 2018-12-07
咸阳陶瓷研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pore-forming method in the foamed ceramic and foamed glass industries belongs to high-temperature heating of raw materials to a molten state, and the high-temperature reaction of the chemical is used to form pores. burden on the environment
In addition, most of the products produced by the above pore-forming methods require low water absorption (less than 3% by mass), and the presence of water is harmful to product performance.
Rubber and plastic foamed products have a certain ability to absorb and store water, but the pore-forming agents of these substances are expensive, and most of them are formed by thermoplastic methods. Relatively poor, poor stability during the life cycle, great impact on the environment
[0006] The water storage materials involved in the present invention are mainly used in the construction of sponge cities, which requires the materials to have higher water absorption capacity and water absorption speed, as well as stability and harmlessness in water for a long time. Obviously, the current materials form pores The process is not suitable, so it is urgent to study a multi-component composite pore-forming process for inorganic water storage materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 0.5 parts of sodium α-olefin sulfonate to 23 parts of water by mass, adjust the speed of the mixer to 30 rpm, stir the solution for 5 minutes, adjust the speed to 180 rpm, stir for 15 minutes, and then add 0.8 Azodicarbonamide, adjust the speed to 50 rpm, stir for 5 minutes, add 75 parts of molybdenum tailings, 25 parts of Jingyang kaolin, 1.5 parts of accelerator (soda ash), and stir for 7 minutes with a mixer at 30 rpm. Pour the mixed slurry into a cylindrical metal mold with a diameter of 20cm and a height of 10cm, put it into the heating equipment, and form holes at 105°C. When the moisture content drops to about 5%, the skin is light yellow and white, and the mold is pulled out and transferred to the kiln at 1100°C. ℃ Broken wall solidification, heating time 4 hours, heat preservation 15 minutes, after natural cooling, broken and ready to use.

Embodiment 2

[0028] Add 0.3 parts of sodium α-olefin sulfonate to 23 parts of water by mass, adjust the speed of the mixer to 50 rpm, stir the solution for 5 minutes, adjust the speed to 150 rpm, stir for 10 minutes, and then add 0.5 Azodicarbonamide, adjust the speed to 30 rpm, stir for 5 minutes, add 75 parts of molybdenum tailings, 25 parts of Jingyang kaolin, 1.5 parts of accelerator (soda ash), and stir for 10 minutes with a mixer at 50 rpm. Pour the mixed slurry into a cylindrical metal mold with a diameter of 20cm and a height of 10cm, put it into the heating equipment, form holes at 125°C, and wait until the water content drops to about 5%, the skin is light yellow and white, come out of the mold, and transfer to the kiln for 1000 ℃ broken wall solidification, heating time 3 hours, heat preservation 20 minutes, natural cooling and crushing for use.

Embodiment 3

[0030] Add 0.6 parts of sodium alkenyl sulfonate to 23 parts of water by mass, adjust the speed of the mixer to 60 rpm, stir the solution for 5 minutes, adjust the speed to 190 rpm, stir for 6 minutes, and then add 0.4 part of azodicarbonamide, adjust the speed to 40 rpm, stir for 5 minutes, add 75 parts of molybdenum tailings, 25 parts of Jingyang kaolin, 1.5 parts of accelerator (soda ash), and stir for 15 minutes with a mixer at 30 rpm. Pour the mixed slurry into a cylindrical metal mold with a diameter of 20cm and a height of 10cm, put it into the heating equipment, and form holes at 105°C. When the water content drops to about 5%, the skin is light yellow and white, and it comes out of the mold and is transferred to the kiln at 1050°C. ℃ broken wall solidification, heating time 3.5 hours, heat preservation 10 minutes, natural cooling and crushing for use.

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PUM

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Abstract

The invention discloses a multi-component pore forming technology for an inorganic water storage material. The multi-component pore forming technology comprises the following steps: performing surfacemodification, performing low temperature pyrolysis, performing pore-forming and molding, performing high-temperature wall-breaking curing and the like. The key process parameters are as follows: in the surface modification step, 0.3-1 part of a surfactant sodium alpha-olefin sulfonate is added, and physical stirring is performed for 5-20 minutes by using a variable frequency mixer at a rotation speed of 30-200 revolutions per minute; in the low temperature pyrolysis step, 0.2-0.8 part of a foaming agent azodicarbonamide is added, and pyrolysis is performed at the temperature of 85-125 DEG C;and in the high-temperature wall-breaking curing stp, the temperature is 950-1200 DEG C, and the temperature rise time is 3-4 hours. The inorganic water storage material prepared by adopting the multi-component pore forming technology for the inorganic water storage material has high water absorbing capacity and water absorbing speed as well as long-term stability and harmlessness in water.

Description

technical field [0001] The invention relates to a material pore-forming process, in particular to a multi-component composite pore-forming process for water storage materials, which belongs to the technical field of inorganic material manufacturing. Background technique [0002] Water storage materials refer to materials that can store water. According to their materials, they can be divided into two categories: inorganic and organic. Inorganic water storage materials have been valued because of their high saturated moisture content, good durability, wide range of use environments, low cost, and easy processing into stepped filter materials with different particle size ratios. They are the preferred materials and basic materials for the construction of sponge cities in the future. . [0003] The characteristics of inorganic water storage materials are determined by their foamy porous structure, so the formation and adjustment of the pore structure is the core technology and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B33/132C04B33/13C04B33/04
CPCC04B33/04C04B33/13C04B33/132C04B38/00Y02P40/60
Inventor 杨中英马小鹏马欣彤白战英翟军浩惠涛
Owner 咸阳陶瓷研究设计院有限公司