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A kind of cement ceiling board with adjustable humidity and preparation method thereof

A ceiling board, adjustable technology, applied in the direction of ceiling, building components, buildings, etc., can solve the problems of low breaking load, difficult to process and install, easy to break, etc., to improve surface roughness, easy to process and install, avoid easy broken effect

Active Publication Date: 2021-04-09
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in fact, if the gypsum ceiling board is used for humidity control, it will be obviously deformed, not only the service life is short, but also it is prone to problems such as falling off due to deformation
Therefore, gypsum ceiling boards will be bonded with protective paper on its surface to prevent its moisture absorption and deformation. Therefore, the current gypsum ceiling boards do not have the ability to regulate humidity, nor can they be used to adjust indoor humidity
For this reason, the present invention thinks through research: cement-based material is a kind of non-compact porous material, and its volume porosity is 25%~30%, and pore size changes continuously from 1nm~100 μ m, and its microscopic pores are mainly capillary pores, so , the cement-based material has a certain humidity adjustment ability; in addition, the ceiling board prepared by the cement-based material will not occur during the humidity adjustment process, these characteristics make the cement-based material have the potential to become a cement ceiling board with adjustable humidity; however, the present invention After further research, it was found that the existing cement-based materials often have high density and low flexural strength, which leads to the high weight per unit area and low breaking load of the panels prepared by conventional cement-based materials, which cannot meet the needs of ceiling panels. Because the ceiling The thickness of the board is generally less than 10mm. When the thickness is high, although the flexural strength of the cement ceiling board can be maintained to a certain extent, it will cause the weight of the ceiling board to be too large, which is neither safe nor easy to process and install; while the thickness is thinner. It is extremely fragile during processing; therefore, it is necessary to develop a cement ceiling board with adjustable humidity

Method used

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  • A kind of cement ceiling board with adjustable humidity and preparation method thereof
  • A kind of cement ceiling board with adjustable humidity and preparation method thereof

Examples

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Effect test

Embodiment 1

[0054] A method for preparing a humidity-adjustable cement ceiling board, comprising the following raw materials: material A, solution B, a humidity regulator and polypropylene fiber mesh cloth; wherein: the material A includes the following raw materials in parts by weight: 42.5 silicic acid 50 parts of salt cement, 35 parts of fly ash, 12 parts of papermaking sludge ash, 8 parts of ultrafine slag powder, and 1.0 part of polyvinylpyrrolidone. The solution B includes the following raw materials in parts by weight: 98.85 parts of water, 1.5 parts of KH570 type silane coupling agent, cuprous oxide modified graphene oxide (GO-Cu 2 O) 0.1 part, wherein; the GO-Cu 2 The loading amount of cuprous oxide in O is 5% (mol fraction), promptly adds 5mol cuprous oxide in every 100mol graphene oxide. The humidity regulator includes the following raw materials in parts by weight: 60 parts of zeolite, 15 parts of diatomite, 6 parts of sodium bentonite, and 0.5 part of water-absorbing resin. ...

Embodiment 2

[0065]A method for preparing a humidity-adjustable cement ceiling board, comprising the following raw materials: material A, solution B, a humidity regulator and polypropylene fiber mesh cloth; wherein: the material A includes the following raw materials in parts by weight: 42.5R silicon Salt cement 60 parts, fly ash 20 parts, papermaking sludge ash 15 parts, ultrafine slag powder 2 parts, polyvinylpyrrolidone 1.1 parts. The solution B includes the following raw materials in parts by weight: 98.0 parts of water, 2 parts of KH570 type silane coupling agent, cuprous oxide modified graphene oxide (GO-Cu 2 O) 0.15 parts, wherein; the GO-Cu 2 The loading amount of cuprous oxide in O is 4% (mol fraction), promptly adds 4mol cuprous oxide in every 100mol graphene oxide. The humidity regulator includes the following raw materials in parts by weight: 50 parts of zeolite, 20 parts of diatomite, 3 parts of sodium bentonite, and 0.6 part of water-absorbing resin.

[0066] The fly ash is...

Embodiment 3

[0075] A method for preparing a humidity-adjustable cement ceiling board, comprising the following raw materials: material A, solution B, a humidity regulator and polypropylene fiber mesh cloth; wherein: the material A includes the following raw materials in parts by weight: 42.5 silicic acid 40 parts of salt cement, 40 parts of fly ash, 5 parts of papermaking sludge ash, 10 parts of ultrafine slag powder, and 0.3 parts of polyvinylpyrrolidone. The solution B includes the following raw materials in parts by weight: 97.95 parts of water, 1 part of KH570 type silane coupling agent, cuprous oxide modified graphene oxide (GO-Cu 2 O) 0.05 part, wherein; the GO-Cu 2 The loading amount of cuprous oxide in O is 3% (mol fraction), promptly adds 3mol cuprous oxide in every 100mol graphene oxide. The humidity regulator includes the following raw materials in parts by weight: 75 parts of zeolite, 10 parts of diatomite, 9 parts of sodium bentonite, and 0.2 part of water-absorbing resin. ...

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Abstract

The invention belongs to the field of building materials, in particular to a cement ceiling board and a preparation method thereof. The cement ceiling board is composed of polypropylene fiber mesh cloth and cement boards, wherein the polypropylene fiber mesh cloth is laid between the cement boards to form a cement ceiling board composed of upper, middle and lower layers. The present invention lays the polypropylene fiber mesh cloth in the middle of the cement board when preparing the cement ceiling board. When the thickness of the prepared cement ceiling board is relatively thin, the cement board can be provided with good flexural strength, and the cement board can be avoided during processing. The board is easily broken, so cement can be used to make ceiling boards, and the prepared ceiling boards are light in weight and easy to process and install.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a humidity-adjustable cement ceiling board and a preparation method thereof. Background technique [0002] The traditional humidity control method is to use the low-temperature condensation technology of the air conditioner for dehumidification, and use the humidifier for humidification, which consumes a lot of energy. The humidity control panel is a building panel that uses the automatic absorption and release of water vapor in the air by the humidity control material to adjust the indoor humidity. It can automatically adjust the indoor humidity without energy consumption during the humidity adjustment process. my country's climate is characterized by rainy and humid summers in the south and dry winters in the north, and traditional building materials have poor humidity regulation capabilities. Therefore, building panels that can adjust humidity have very broad appl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04E04C2/04E04B9/04
CPCC04B28/04C04B2111/00586E04B9/04E04C2/044C04B24/2652C04B24/42C04B18/141C04B18/08C04B18/10C04B14/309C04B14/024C04B14/047C04B14/104C04B24/24C04B16/0633
Inventor 芦令超李来波闫振陈明旭程新
Owner UNIV OF JINAN
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