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Preparation method for inorganic noninflammable lightweight foamed cement

A foamed cement and inorganic technology, which is applied in the field of preparation of foamed cement for thermal insulation materials, can solve the problems of releasing toxic gases, hidden dangers of fire safety, easy combustion, etc., and achieve the effect of realizing ecological cycle and saving resources.

Inactive Publication Date: 2013-08-07
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the most fatal weakness of this type of organic thermal insulation material is that it is easy to burn, and it will release toxic gas when burned, which brings huge hidden dangers to fire safety.

Method used

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  • Preparation method for inorganic noninflammable lightweight foamed cement

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] 1) Add 1.1g of sodium carboxymethylcellulose into 110mL of water, let it stand to fully dissolve sodium carboxymethylcellulose into the water, and obtain an aqueous solution of sodium carboxymethylcellulose;

[0028] 2) Add 10g of papermaking lime mud fiber (purchased from Hebi Jielian New Material Technology Co., Ltd.) into the sodium carboxymethylcellulose aqueous solution in batches, then stir with a glass rod, and then fully stir with a mixer to make the paper The white mud fiber is uniformly dispersed in the sodium carboxymethyl cellulose aqueous solution, and then successively add 1.5g of polypropylene fiber, 160g of cement, 0.38g of perlite, 1g of calcium stearate and 0.4g of manganese dioxide and stir uniform; then add 1mL of triethanolamine and 15.0mL of 30% hydrogen peroxide and stir for 15s, quickly put into the mold, harden and form, after 2 days for final coagulation, demoulding, natural curing in the room for 20 days to the test age, that is, the inorganic ...

Embodiment 2

[0031] 1) Add 1.2g of sodium carboxymethylcellulose into 140mL of water, let it stand to fully dissolve sodium carboxymethylcellulose into the water, and obtain an aqueous solution of sodium carboxymethylcellulose;

[0032] 2) Add 19g of papermaking lime mud fiber (purchased from Hebi Jielian New Material Technology Co., Ltd.) into the sodium carboxymethylcellulose aqueous solution in batches, then stir with a glass rod, and then fully stir with a mixer to make the paper The white mud fiber is uniformly dispersed in the aqueous solution of sodium carboxymethyl cellulose, then successively add 1.5g of polypropylene fiber, 140g of cement, 0.38g of perlite, 1g of calcium stearate and 0.4g of manganese dioxide and stir uniform; then add 1mL of triethanolamine and 15.0mL of 30% hydrogen peroxide and stir for 15s, quickly put into the mold, harden and form, after 2 days for final coagulation, demoulding, natural curing in the room for 20 days to the test age, that is, the inorganic ...

Embodiment 3

[0035] 1) Add 1.2g of sodium carboxymethylcellulose into 150mL of water, let it stand to fully dissolve sodium carboxymethylcellulose into the water, and obtain an aqueous solution of sodium carboxymethylcellulose;

[0036] 2) Add 24g of paper-making lime mud fiber (purchased from Hebi Jielian New Material Technology Co., Ltd.) into the sodium carboxymethylcellulose aqueous solution in batches, then stir with a glass rod, and then fully stir with a mixer to make the paper The white mud fiber is dispersed evenly in the aqueous solution of sodium carboxymethyl cellulose, and then 2g of polypropylene fiber, 140g of cement, 0.38g of perlite, 1g of calcium stearate and 0.4g of manganese dioxide are added in sequence and stirred evenly ; Add 1mL of triethanolamine and 15.0mL of 30% hydrogen peroxide and stir for 15s, quickly put into the mold, harden and form, after 2 days for final setting, demoulding, and natural curing in the room for 20 days to the test age, that is, the inorgani...

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Abstract

The invention provides a preparation method for inorganic noninflammable lightweight foamed cement. The preparation method comprises the following steps: adding an inorganic fiber into an aqueous solution of carboxymethylcellulose sodium and carrying out stirring to allow the inorganic fiber to be uniformly dispersed in the aqueous solution of carboxymethylcellulose sodium; then successively adding five raw materials consisting of an organic fiber, cement, perlite, calcium stearate and manganese dioxide and carrying out uniform mixing with stirring; and adding triethanolamine and hydrogen peroxide, carrying out stirring, injecting an obtained mixture into a mold, carrying out demolding after hardening, molding and final setting and carrying out indoor natural curing to a test period so as to obtain the inorganic noninflammable lightweight foamed cement. According to the invention, the inorganic fiber is added during preparation of the inorganic noninflammable lightweight foamed cement, so the prepared inorganic noninflammable lightweight foamed cement overcomes the disadvantages of flammability and toxicity of currently commercially available foamed cement and enables resources to be saved and the waste to be turned into the valuable.

Description

technical field [0001] The invention relates to a method for preparing foamed cement as a thermal insulation material, in particular to an inorganic non-combustible lightweight foamed cement. Background technique [0002] Foamed cement is a lightweight foamed thermal insulation material formed by inflating the cement slurry to achieve the purpose of reducing the density of the cement slurry. In the entire thermal insulation building materials market, organic thermal insulation materials with good energy-saving effect, low price and easy use account for more than 90% of the total. However, the most fatal weakness of this type of organic thermal insulation material is that it is easy to burn, and it will release toxic gas when burned, which brings huge hidden dangers to fire safety. Contents of the invention [0003] The invention provides a preparation method of non-toxic inorganic non-combustible lightweight foamed cement. [0004] In order to achieve the above object, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/02
Inventor 苏秀霞曹鹏妮张海宁毛敏张丹张云郭明媛周丽王楠董伟
Owner SHAANXI UNIV OF SCI & TECH
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