Fire resistant material and preparation method thereof

A technology for refractory materials and raw materials, applied in the field of silica-containing refractory materials and their preparation, can solve the problems of high energy consumption and complex process, and achieve the effects of good formability, wide source of raw materials and excellent application potential.

Active Publication Date: 2015-12-09
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a refractory material and a preparation method thereof, so as to solve the problems of complex process and high energy consumption in the refractory material preparation process, and the refractory material produced has good heat resistance and high temperature resistance. Stable under high temperature, free of volatile and easily decomposed components

Method used

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  • Fire resistant material and preparation method thereof
  • Fire resistant material and preparation method thereof
  • Fire resistant material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Pour the silicone resin and kaolin into the beaker according to the mixture, wherein the silicone resin content is 50%-75%, and the kaolin content is 25%-50%. Stir with a glass rod for 10 minutes to mix evenly. After mixing, a viscous and fluid mixture is obtained. The mixture was precured at 100° C. for 5 h, and stirred with a glass rod every 20 minutes during the precuring process. The purpose of pre-curing is to initially evaporate the solvent in the silicone resin, and the purpose of regular stirring is because the kaolin will condense and form a precipitate during the process, making the two mixed unevenly. Then put the mixture into a specific mold for curing and molding. The curing process is 100°C for 24 hours, and then apply pressure for molding. For kaolin content of 25%, 33% and 50%, the pressure is 5MPa, 7MPa and 10MPa respectively. Then keep it at 200°C for 5 hours, and at 300°C for 5 hours. At this stage, the solvent component xylene in the silicone resin w...

Embodiment 2

[0048] The difference between this example and Example 1 is that the mass ratio of kaolin and silicone resin is 1:3, and the temperature during the heating and oxidation process is 1°C / min, 5°C / min and 10°C / min, after 100°C heat preservation The molding pressure is 5MPa. Other steps are identical with embodiment 1. The performance parameters of the prepared refractories are listed in Table 2.

[0049] Intensity (MPa) and density (g / cm3) of refractories prepared under different heating rates in Table 2 3 )

[0050]

Embodiment 3

[0052] The difference between this example and Example 1 is that the mass ratio of kaolin and silicone resin is 1:2, and the maximum heat treatment temperature is 800°C, 1300°C and 1500°C. Other steps are identical with embodiment 1. The performance parameters of the prepared refractories are shown in Table 3.

[0053] The strength (MPa) and density (g / cm3) of refractory materials prepared under different maximum treatment temperatures in Table 3 3 )

[0054]

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Abstract

The invention discloses a fire resistant material and a preparation method thereof, in particular to a silicon dioxide-containing fire resistant material and a preparation method thereof. The fire resistant material is prepared by adopting an organosilicon polymer as a base body and an inorganic additive as an additive under a condition of slowly warning up. The fire resistant material and the preparation method thereof can be used for preparing a series of high temperature resisting material articles such as high-temperature service liners, high temperature vessels and refractory bricks, and solve a series of problems of existing refractory material products that preparation technology energy consumption is great, components are complex, components which are unstable or are easily volatilized and decomposed under high temperature action are contained, and the like.

Description

technical field [0001] The invention relates to a refractory material and a preparation method thereof, in particular to a silicon dioxide-containing refractory material and a preparation method thereof. Background technique [0002] Refractory materials that can resist high temperature without softening and melting are widely used in various fields of national economy such as metallurgy, petrochemical industry, machinery manufacturing, electric power, military industry, etc., and play an irreplaceable important role in high temperature industrial production. [0003] Frequently used refractory materials are refractory materials that are directly used without molding and firing, and are composed of high-melting point granular and powder materials that are fired by various molding processes or combined with binders. Common basic material components include oxides, such as alumina, lanthanum oxide, beryllium oxide, calcium oxide, zirconia, etc., and non-oxides, such as silicon...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 刘玉付谢晓东
Owner SOUTHEAST UNIV
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