Lightweight high-strength gypsum plaster board and preparation method thereof

A kind of gypsum board, high-strength technology, used in construction, building structure, covering/lining, etc., can solve the problem of difficult removal, and achieve the effect of inhibiting migration, good bonding performance and low areal density

Inactive Publication Date: 2021-11-02
BEIJING NEW BUILDING MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But for ions that cannot form insolub

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  • Lightweight high-strength gypsum plaster board and preparation method thereof
  • Lightweight high-strength gypsum plaster board and preparation method thereof
  • Lightweight high-strength gypsum plaster board and preparation method thereof

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the application clearer, the embodiments of the application will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0034] The embodiment of the present application provides a light-weight high-strength gypsum board. The raw materials for the preparation of the light-weight high-strength gypsum board include:

[0035]

[0036] In the embodiment of the present application, the ion blocker may be selected from any one or more of polyvinyl alcohol, carboxymethyl cellulose, polyacrylamide, sodium alginate and vinyl acetate-ethylene copolymer emulsion.

[0037] In an embodiment of the present application, the plaster of paris may be clinker of industrial by-product gypsum.

[0038] Optionally, the plaster...

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Abstract

The invention discloses a lightweight high-strength gypsum plaster board and a preparation method thereof. The lightweight high-strength gypsum plaster board is prepared from the following raw materials in parts by weight: 100 parts of calcined gypsum, 0.05-1 part of an ion retardant, 0.1-2 parts of fibers, 0.15-1.5 parts of a binder, 0.01-0.5 part of a foaming agent and 50-90 parts of water. The lightweight high-strength gypsum plaster board provided by the invention can be prepared from a gypsum raw material with high impurity ions, and the bonding performance of surface protection paper and the gypsum is good.

Description

technical field [0001] This application relates to but is not limited to the preparation technology of gypsum board, especially a kind of light-weight high-strength paper-faced gypsum board and its preparation method. Background technique [0002] Industrial by-product gypsum has a large amount of emissions and low utilization rate in China. The main reason is that the quality of industrial by-product gypsum is unstable and contains a large amount of impurity ions. The phosphate fertilizer industry emits 5 tons of phosphogypsum for every ton of product produced. A large amount of by-product gypsum stockpiled not only occupies land but also pollutes the environment. Phosphogypsum contains H 2 PO 4 - 、HPO 4 2- 、PO 4 3- , F - , Mg 2+ 、K + 、Na + and other impurity ions. Coal-fired flue gas in thermal power plants undergoes wet desulfurization to produce desulfurized gypsum. In addition to the main component calcium sulfate dihydrate, it also includes Cl - , Mg 2 + ...

Claims

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Application Information

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IPC IPC(8): C04B28/14E04F13/072C04B111/40
CPCC04B28/144E04F13/072C04B2111/0062C04B2201/20C04B2201/50C04B2111/40C04B24/38C04B24/2623C04B24/20C04B16/0633
Inventor 李帆丛宇张赫陈红霞
Owner BEIJING NEW BUILDING MATERIAL
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