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A kind of purifying formaldehyde gypsum board and preparation method thereof

A technology of paper-faced gypsum board and aldehyde-cleaning agent, which is applied in the field of building materials, can solve the problems of secondary pollution release and harm to human health, and achieve high adsorption and filtration performance and large specific surface area.

Active Publication Date: 2021-08-24
BEIJING NEW BUILDING MATERIALS PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simple adsorption can reduce the formaldehyde content in a short period of time, but there is a problem of secondary release of pollution sources after adsorption saturation, so this application aims to solve the problem of formaldehyde re-released into the air after adsorption saturation in the plasterboard, which is harmful to human health The problem

Method used

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  • A kind of purifying formaldehyde gypsum board and preparation method thereof
  • A kind of purifying formaldehyde gypsum board and preparation method thereof
  • A kind of purifying formaldehyde gypsum board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare the paper surface gypsum board, the specific steps are as follows: step 1, pretreat the desulfurized gypsum clinker;

[0033] Step 2. Weigh the components of the paper surface gypsum board, including 100 parts by weight of desulfurized gypsum, 57 parts by weight of water, 0.08 parts by weight of glass fiber, 1.5 parts by weight of foaming agent, 0.3 parts by weight of retarder, 0.3 parts by weight of starch, 0.2 parts by weight of 200-mesh zeolite, 0.2 parts by weight of 300-mesh diatomite, 0.1 part by weight of 450-mesh pumice, and 0.5 parts by weight of aldehyde-removing agent.

[0034] Step 3: Mix the zeolite, diatomaceous earth and pumice evenly, add the aldehyde-removing agent, and stir magnetically for 30 minutes to prepare the mineral-loaded aldehyde-removing agent.

[0035] Step 4, mixing water, modified starch, glass fiber, foaming agent, retarder, and mineral-loaded aldehyde netting agent, and stirring to form a uniform mixed solution;

[0036] Step 5...

Embodiment 2

[0041] Prepare the paper-faced gypsum board, the specific steps are as follows:

[0042] Step 1, pretreating the desulfurized gypsum clinker;

[0043] Step 2. Weigh the components of the paper surface gypsum board, including 100 parts by weight of desulfurized gypsum, 67 parts by weight of water, 0.13 parts by weight of glass fiber, 0.2 parts by weight of foaming agent, 0.5 parts by weight of retarder, 0.8 parts by weight of starch, 0.5 parts by weight of 450-mesh zeolite, 0.5 parts by weight of 200-mesh diatomite, 0.5 parts by weight of 200-mesh pumice, and 2.5 parts by weight of aldehyde netting agent.

[0044] Step 3 to step 8 are the same as in Example 1.

Embodiment 3

[0046] Prepare the paper-faced gypsum board, the specific steps are as follows:

[0047] Step 1, pretreating the desulfurized gypsum clinker;

[0048]Step 2. Weigh the components of the paper surface gypsum board, including 100 parts by weight of desulfurized gypsum, 70 parts by weight of water, 0.18 parts by weight of glass fiber, 0.5 parts by weight of foaming agent, 0.8 parts by weight of retarder, 1.6 parts by weight of starch, 0.8 parts by weight of 325-mesh zeolite, 0.8 parts by weight of 475-mesh diatomite, 0.8 parts by weight of 325-mesh pumice, and 4.5 parts by weight of aldehyde netting agent.

[0049] Step 3 to step 8 are the same as in Example 1.

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Abstract

The present application discloses a gypsum board. The raw materials of the gypsum board include: 100 parts by weight of desulfurized gypsum, 55-75 parts by weight of water, 0.05-0.2 parts by weight of glass fiber, and 0.1-2 parts by weight of foaming agent. Parts by weight, 0.2-1 parts by weight of retarder, 0.2-2 parts by weight of starch, 0.1-1 parts by weight of zeolite, 0.1-1 parts by weight of diatomaceous earth, 0.1-1 parts by weight of pumice, 0.5-5 parts by weight of aldehyde netting agent . The present application also provides a preparation method of the gypsum board. This application achieves the effect of removing formaldehyde through the combination of zeolite, diatomaceous earth, pumice and aldehyde purifying agent.

Description

technical field [0001] The present application relates to the field of building materials, in particular but not limited to a formaldehyde-purified paper-faced gypsum board and a preparation method thereof. Background technique [0002] Paper-faced gypsum board has the advantages of light weight, fire prevention, sound insulation, thermal insulation, good decorative performance (planing, nailing, and sawing), convenient processing, green environmental protection, and space saving, so it is widely used in various industrial buildings, In the field of civil building decoration and construction, especially in high-rise buildings, it can be used as interior wall materials and decoration materials. [0003] Gypsum board, as a bulk building material, is widely used in interior decoration. It is necessary to develop a paper-faced gypsum board with the function of purifying formaldehyde. At present, the aldehyde-cleaning gypsum board mainly realizes its aldehyde-cleaning function ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
CPCC04B28/144C04B2111/00017C04B2201/50C04B14/42C04B24/16C04B22/10C04B2103/22C04B24/38C04B14/047C04B14/08C04B14/00C04B22/06C04B22/14
Inventor 尹东杰王鹏起谭丹君简铭王莹樊惠云
Owner BEIJING NEW BUILDING MATERIALS PLC