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Gypsum product drainage defrosting agent and preparation method thereof

A defrosting agent and product technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of not fundamentally solving the problem of frosting, the effect is not obvious, etc., to reduce the drying time, Good drainage and defrosting effect, obvious effect

Active Publication Date: 2022-04-12
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of these solutions increase the density of gypsum blocks to reduce blooming, but the effect is not very obvious, and the problem of blooming is not fundamentally solved

Method used

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  • Gypsum product drainage defrosting agent and preparation method thereof
  • Gypsum product drainage defrosting agent and preparation method thereof
  • Gypsum product drainage defrosting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Parts by weight are 10,000 parts of building gypsum powder, 10,000 parts of water, 3 parts of hydrogen-containing silicone oil, 6 parts of dimethyl silicone oil, 6 parts of 1,1,3,3-tetramethyldisiloxane, 1,1,5, 30 parts of 5-tetramethyl-3,3-diphenyltrisiloxane, 18 parts of dimethyl hydroxy silicone oil, 12 parts of hydrogen-terminated phenyl silicone oil, 18 parts of hydrogen-terminated polydimethylsiloxane, Molded in the factory mold, formed into 666mm × 500mm × 120mm test block, formed 18 pieces, randomly selected 3 pieces and weighed each piece to calculate the average weight, and weighed after draining. The specific data is shown in Table 1.

[0034] Table 1 Mass of the sample before and after drainage

[0035]

[0036] From the data in Table 1, it can be seen that about 8.89% of water can be discharged.

Embodiment 2

[0038] Parts by weight are 10,000 parts of building gypsum powder, 10,000 parts of water, 3 parts of hydrogen-containing silicone oil, 6 parts of dimethyl silicone oil, 6 parts of 1,1,3,3-tetramethyldisiloxane, 1,1,5, 30 parts of 5-tetramethyl-3,3-diphenyltrisiloxane, 18 parts of dimethyl hydroxy silicone oil, 12 parts of hydrogen-terminated phenyl silicone oil, 18 parts of hydrogen-terminated polydimethylsiloxane, Molded in the factory mold, formed into 500mm × 247mm × 200mm test block, formed 24 pieces, randomly selected 3 pieces and weighed each piece to calculate the average weight, and weighed after draining. The specific data is shown in Table 2.

[0039] Table 2 Mass of the sample before and after drainage

[0040]

[0041] It can be seen from the data in Table 2 that about 9.06% of water can be discharged.

Embodiment 3

[0043] Parts by weight are 10,000 parts of building gypsum powder, 10,000 parts of water, 3 parts of hydrogen-containing silicone oil, 6 parts of dimethyl silicone oil, 6 parts of 1,1,3,3-tetramethyldisiloxane, 1,1,5, 30 parts of 5-tetramethyl-3,3-diphenyltrisiloxane, 18 parts of dimethyl hydroxy silicone oil, 12 parts of hydrogen-terminated phenyl silicone oil, 18 parts of hydrogen-terminated polydimethylsiloxane, Molded in the factory mold, formed into 666mm × 500mm × 120mm test block, formed 18 pieces, collected the discharged water, and recorded it as sample A.

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Abstract

The invention relates to a drainage defrosting agent for a gypsum product, which is prepared by mixing hydrogen-containing silicone oil, dimethyl silicone oil, 1, 1, 3, 3-tetramethyldisiloxane, 1, 1, 5, 5-tetramethyl-3, 3-diphenyl trisiloxane, dimethyl hydroxyl silicone oil, hydrogen-terminated phenyl silicone oil and hydrogen-terminated polydimethylsiloxane. The gypsum product can discharge water to achieve the defrosting effect, and has the advantages of being good in dispersity, convenient and simple to prepare and the like.

Description

technical field [0001] The invention belongs to the technical field of building material admixtures, in particular to a drainage defrosting agent for gypsum products and a preparation method thereof. Background technique [0002] Industrial by-product gypsum refers to the by-product or waste residue produced by chemical reaction in industrial production with calcium sulfate as the main component. According to different sources, it can be divided into desulfurization gypsum, phosphogypsum, fluorine gypsum, citrate gypsum, titanium gypsum and other types. Desulfurization gypsum is a by-product obtained after wet desulfurization and purification of flue gas. The main component is calcium sulfate dihydrate, which mainly contains incompletely reacted calcium carbonate, calcium sulfite, fly ash and soluble salts (Cl - , Mg 2+ 、Na + ) and other impurities. Phosphogypsum is the waste residue finally obtained from excess sulfuric acid remaining after neutralizing apatite with lim...

Claims

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Application Information

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IPC IPC(8): C04B11/02C04B20/02C04B18/04
CPCY02W30/91
Inventor 陈畅王绪富
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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