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Preparation method of titanium aluminum silicon rubber with double functions of cleaning and adsorbing moisture

A dual-effect, silicon-titanium technology, applied in the field of silicon-titanium-aluminum glue preparation, can solve the problems of sterilization, deodorization and odor elimination with little effect, and achieve the effects of low cost, simple process and strong hygroscopic performance.

Inactive Publication Date: 2013-11-27
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of desiccant generally only has the function of dehumidification, and has little effect on sterilization, deodorization and elimination of peculiar smell.

Method used

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  • Preparation method of titanium aluminum silicon rubber with double functions of cleaning and adsorbing moisture
  • Preparation method of titanium aluminum silicon rubber with double functions of cleaning and adsorbing moisture
  • Preparation method of titanium aluminum silicon rubber with double functions of cleaning and adsorbing moisture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: 1) get Ti (SO 4 ) 2 and Al 2 (SO 4 ) 3 After being ground into fine powder, Ti(SO 4 ) 2 and Al 2 (SO 4 ) 3 solution, and then Ti(SO 4 ) 2 and Al 2 (SO 4 ) 3 The solutions are mixed to obtain a mixed solution;

[0017] 2) Take an industrial water glass solution with a modulus of M=2.5, gradually add it to the above mixed solution under constant stirring, stop stirring when the pH value of the mixed solution is 6.5, and leave it to stand to obtain a light blue precursor gel;

[0018] 3) The precursor gel was pelletized and aged for 1 day, washed and soaked to remove soluble sulfate ions, and then dried in a drying oven at 80°C;

[0019] 4) Place the dried granular gel in an electric furnace and calcinate it at 550° C. for 5 hours to obtain light yellow silica-titanium-aluminum gel with photocatalytic activity.

Embodiment 2

[0020] Embodiment 2: 1) get Ti (SO 4 ) 2 and Al 2 (SO 4 ) 3 After being ground into fine powder, Ti(SO 4 ) 2 and Al 2 (SO 4 ) 3 solution, and then Ti(SO 4 ) 2 and Al 2 (SO 4 ) 3 The solutions are mixed to obtain a mixed solution;

[0021] 2) Take an industrial water glass solution with a modulus of M=2.0, and gradually add it to the above mixed solution under constant stirring so that the pH of the mixed solution is 6.5, stop stirring, and let it stand to obtain a light blue precursor gel;

[0022] 3) The precursor gel was pelletized and aged for 1 day, washed and soaked to remove soluble sulfate ions, and then dried in a drying oven at 80°C;

[0023] 4) Place the dried granular gel in an electric furnace and calcinate it at 600° C. for 4 hours to obtain a light yellow silica-titanium-alumina gel with photocatalytic activity.

Embodiment 3

[0024] Embodiment 3: 1) get Ti (SO 4 ) 2 and Al 2 (SO 4 ) 3 After being ground into fine powder, Ti(SO 4 ) 2 and Al 2 (SO 4 ) 3 solution, and then Ti(SO 4 ) 2 and Al 2 (SO 4 ) 3 The solutions are mixed to obtain a mixed solution;

[0025] 2) Take an industrial water glass solution with a modulus of M=2.3, gradually add it to the above-mentioned mixed solution under continuous stirring, stop stirring when the pH value of the mixed solution is 6.5, and leave it to stand to obtain a light blue precursor gel;

[0026] 3) The precursor gel was pelletized and aged for 1 day, washed and soaked to remove soluble sulfate ions, and then dried in a drying oven at 80°C;

[0027] 4) Put the dried granular gel in an electric furnace and calcinate at 450° C. for 6 hours to obtain light yellow silica-titanium-alumina gel with photocatalytic activity.

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Abstract

The invention relates to a preparation method of titanium aluminum silicon rubber with double functions of cleaning and adsorbing moisture. The preparation method comprises the following steps: based on industrial water glass with the modulus M of 2.0-2.5 as a silicon source and acidic inorganic salts of titanium and aluminum as a titanium source and an aluminum source, gradually adding a water glass solution into an acidic inorganic salt mixed solution of titanium and aluminum under the continuous stirring condition for regulating the pH value to 6.5 so as to form gel; balling and pelleting, ageing for 1 day, then washing and immersing to remove soluble sulfate ions; drying in a drying oven of 80 DEG C for 24 hours; and calcining for 4-6 hours at 450-600 DEG C to obtain light-yellow titanium aluminum silicon rubber with high photocatalytic activity. The moisture absorption experimental result indicates that the water absorption of the product reaches above 35% at the temperature of 25 DEG C and the relative humidity (RH) of 90%. The photocatalytic degradation experimental result indicates that the degradation rate of simulating pollutant methyl orange is approximately 80% within 60 minutes and high photocatalytic activity is ensured.

Description

technical field [0001] The invention belongs to the field of ecological environment materials, and in particular relates to a method for preparing silicon-titanium-aluminum glue with dual functions of cleaning and moisture absorption. Background technique [0002] Environmental issues are closely related to people's life and production. If people live and work in humid, dark and smelly environments for a long time, their health will be seriously affected. In the production process of precision instruments, electronics and chemicals, if the environmental humidity and cleanliness are not controlled, the product quality will be seriously affected. If items are stored in a humid environment, they will become moldy and deteriorate due to the erosion of mold, and will also cause adverse consequences such as metal rust, decreased instrument accuracy, and reduced insulation parameters, and even cause major losses to the national economy. Therefore, there is an urgent need for an e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/10B01J21/12B01D53/28A61L9/18
Inventor 张超武刘昌涛徐彬肖玲王芬
Owner SHAANXI UNIV OF SCI & TECH