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Infrared radiation coating capable of forming coating with low conductivity factor

A technology of infrared radiation coating and low thermal conductivity, applied in the field of infrared radiation energy-saving materials, can solve problems such as poor high temperature stability and poor infrared radiation performance, achieve excellent low thermal conductivity, excellent infrared radiation performance, and ensure energy-saving effect. Effect

Inactive Publication Date: 2014-08-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing low thermal conductivity materials often have poor infrared radiation performance or poor high temperature stability

Method used

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  • Infrared radiation coating capable of forming coating with low conductivity factor
  • Infrared radiation coating capable of forming coating with low conductivity factor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In terms of mass percentage, it is 40% of spinel-silicate multiphase composite system infrared radiation powder, 5% of pore-forming agent, 10% of potassium hexatitanate, 30% of water glass, 5% of water, and 6.7% of inorganic bonding agent , organic bentonite 1%, sodium phosphate 2%, tributyl phosphate 0.2%, water-based acrylic resin 0.1%, the pore-forming agent is composed of graphite and starch, and the mass ratio of graphite and starch is 50%: 50% , Weigh the above-mentioned components, stir and mix for 4 hours, and then obtain the infrared radiation coating of viscous suspending fluid.

[0023] Among them, the infrared radiation powder of the spinel-silicate multi-phase composite system includes the A component forming the spinel solid solution, the B component forming the silicate mineral and the accelerator C component, wherein the The above-mentioned A component includes Fe 2 o 3 , MnO 2 , CuO and Mo 2 o 3 , the B component includes Al 2 o 3 , SiO 2 , MgO ...

Embodiment 2

[0028] According to the mass ratio, 30% spinel-silicate multiphase composite system infrared radiation powder, 3% pore forming agent, 20% potassium hexatitanate, 25% water glass, 10% water, 8% inorganic bonding agent , 2% organic bentonite, 1% sodium phosphate, 0.5% tributyl phosphate, 0.5% water-based acrylic resin, the above-mentioned various components are weighed according to the proportion, and the described pore-forming agent is composed of graphite and starch. The mass ratio of starch and starch is 50%:50%. Stir and mix for 1 hour to obtain a viscous suspension fluid infrared radiation coating.

[0029] Among them, the mass ratio of each component in the infrared radiation powder of the spinel-silicate multiphase composite system is: 28%MnO 2 , 12%CuO, 6%Mo 2 o 3 , 5%V 2 o 5 、5%WO 3 , 5%Al 2 o 3 , 20%SiO2 2 , 10%MgO, 6%TiO 2 and 3% CaO; the preparation process is as follows: batching various raw materials according to the specified ratio, ball milling, mixing, ...

Embodiment 3

[0033] According to the mass ratio, it is 50% spinel-silicate multiphase composite system infrared radiation powder, 3% pore forming agent, 33% water glass, 10% water, 1% inorganic bonding agent, 1% organic bentonite, 1% % tributyl phosphate, 1% water-based acrylic resin, the above-mentioned various components are weighed according to the proportion, stirred and mixed for 3 hours, and the infrared radiation coating of viscous suspension fluid is obtained.

[0034] Among them, the mass ratio of each component in the infrared radiation powder of the spinel-silicate multiphase composite system is: 10% Fe 2 o 3 , 60%MnO 2 , 3%CuO, 4%Co 2 o 3 , 3%NiO, 2%WO 3 , 8%Al 2 o 3 , 5%SiO2 2 , 3% BaO and 2% CaO; the preparation process is as follows: batching various raw materials according to the specified ratio, ball milling, mixing, drying and pressing the ingredients into a block green body; During the process, first heat to 800°C for 6 hours to form a spinel solid solution, and ...

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Abstract

The invention discloses an infrared radiation coating capable of forming a low thermal conductivity coating, which is prepared from the following raw materials in mass percent: spinel-silicate multiphase composite system infrared radiation powder: 30-50 %, pore forming agent: 3~15%, potassium hexatitanate: 0~20%, water glass: 25~50%, water: 5~15%, inorganic bonding agent: 1~10%, anti-settling agent: 0~2%, dispersant: 0~3%, defoamer: 0~1%, leveling agent: 0~1%. After the coating of the present invention is dried and solidified, a coating with a porous structure is formed during use. The coating has excellent infrared radiation performance and low thermal conductivity, and can be firmly combined with the refractory material matrix. No cracking, no shedding, corrosion resistance, excellent thermal shock resistance.

Description

technical field [0001] The invention relates to the field of infrared radiation energy-saving materials, in particular to an infrared radiation coating capable of forming a low thermal conductivity coating. Background technique [0002] The application of infrared radiation energy-saving technology is an effective way to improve the energy utilization efficiency of industrial furnaces. The application of infrared radiation coatings on the inner wall surface of refractory materials in industrial kilns can effectively improve the infrared radiation ability and spectral characteristics of the surface of objects participating in radiation heat transfer in the furnace, enhance the radiation heat transfer efficiency in the furnace, promote the heating process, and improve The uniformity of the temperature inside the kiln can speed up the heating speed and quality of the workpiece, shorten the production cycle, improve the effectiveness of energy utilization in the process of using...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/04C09D7/12C09D5/00
Inventor 黄端平徐庆张枫
Owner WUHAN UNIV OF TECH
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