A kind of discoloration gypsum board and preparation method thereof

A technology of gypsum board and gypsum powder, which is applied in the field of building materials, can solve the problems of limited adjustment range and less research, and achieve the effect of overcoming single pattern, improving moisture absorption and moisture release performance, and improving comfort

Active Publication Date: 2021-12-17
CHINA NAT BUILDING MATERIALS TECHCAL INNOVATION & RES INST LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adjustment range of gypsum board to the indoor wet environment is limited, and there are few reports on how to increase the adjustment of gypsum board to the indoor wet environment
In addition, with the improvement of living standards, people have more and more requirements for intelligent and environmentally friendly interior decoration materials, but there are fewer studies in this area.

Method used

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  • A kind of discoloration gypsum board and preparation method thereof
  • A kind of discoloration gypsum board and preparation method thereof
  • A kind of discoloration gypsum board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Pass 1000 grams of gypsum powder through an 80-mesh sieve, and crush and grind 50 g of discolored silica gel to 80 mesh. Mix the treated gypsum powder, discolored silica gel powder and 3g of water reducer (BASF Melflux5691F) evenly;

[0057] (2) Test steps (1) Standard consistency expansion degree of mixed powder to determine the standard consistency water consumption of mixed powder.

[0058] (3) According to the water consumption of the standard consistency, take the mixing water, mix the mixing water with the mixing powder, foaming agent (0.35g, SASN812) to prepare slurry.

[0059] (4) The prepared slurry is placed in the mold, and the thickness of the plate is 9.5 mm. After the final setting is completed, the board is placed in an oven and dried at 45°C until constant weight.

Embodiment 2

[0061] (1) Pass 600 grams of gypsum powder through an 80-mesh sieve; mix the treated gypsum powder with 1 g of water reducer (BASF Melflux5691F) evenly. (2) Test the expansion degree of the mixed powder to determine the water consumption of the standard consistency of the mixed powder.

[0062] (3) Pass 400 grams of gypsum powder through an 80-mesh sieve. Pass 600 grams of gypsum powder through an 80-mesh sieve, crush and grind 50 g of discolored silica gel to 80 mesh; mix the treated gypsum powder, discolored silica gel powder and 2 g of water reducer (BASF Melflux5691F) evenly.

[0063] (4) Test the expansion degree of the mixed powder obtained in step (3) to determine the standard consistency water consumption of the mixed powder.

[0064] (5) Measure the standard consistency water consumption by step (2), take the mixing water, mix the mixing powder and foaming agent (0.15g, SASN812) to prepare slurry 1.

[0065] (6) placing the slurry 1 prepared in step (5) into a mol...

Embodiment 3

[0070] The difference between Example 3 and Example 2 is that the color-changing silica gel material in the gypsum board raw material is ground to 600 mesh, and the other raw materials and preparation steps are the same as in Example 2.

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Abstract

The invention discloses a color-changing gypsum board and a preparation method thereof. The raw materials of the color-changing gypsum board include: gypsum powder and color-changing silica gel; optionally, the raw materials of the color-changing gypsum board may also include a foaming agent and a water reducer . The preparation method of the color-changing gypsum board provided by the present invention comprises the following steps: uniformly mixing gypsum powder, silica gel powder and water reducer; testing the standard consistency expansion degree of the prepared mixture to determine the water consumption of the standard consistency of the mixture; after that Stir the mixture with water and a foaming agent according to the water consumption of the standard consistency to prepare a slurry; finally shape the slurry, dry it to constant weight after final setting, and obtain a color-changing gypsum board. The color-changing gypsum board has no protective paper on the surface, and has excellent mechanical properties and fire resistance. At the same time, the gypsum board can also change color according to the ambient humidity, and has the functions of decorating and improving the comfort of the living environment.

Description

technical field [0001] This article relates to building material technology, especially a color-changing gypsum board and a preparation method thereof. The color-changing gypsum board is a functional intelligent gypsum board, specifically a gypsum board with a moisture-sensitive effect and a preparation method thereof. Background technique [0002] In recent years, as a new type of interior decoration material, gypsum board has been accepted and used by more and more people, because gypsum board itself, as a porous building material product, can fine-tune the indoor environment, especially the indoor humidity. However, the adjustment range of gypsum board to the indoor humidity environment is limited, and there are few reports on how to increase the adjustment of gypsum board to the indoor humidity environment. In addition, with the improvement of living standards, people have more and more requirements for intelligent and environmentally friendly interior decoration materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B38/02C04B111/28C04B111/80C04B111/82
CPCC04B28/14C04B2111/80C04B2111/82C04B2111/28C04B2201/50C04B14/064C04B2103/302C04B38/02
Inventor 王丽尚珺虓陈红霞
Owner CHINA NAT BUILDING MATERIALS TECHCAL INNOVATION & RES INST LIMITED
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