Lightweight reinforced gypsum board and preparation method thereof

A reinforced, gypsum board technology, applied in the field of building materials, can solve the problems of poor practical performance, poor water resistance, inconvenient construction, etc., and achieve the effects of good water resistance, low strength, and reduced product density.

Inactive Publication Date: 2018-07-24
合肥语林装饰工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the gypsum boards on the market generally have the characteristics of high unit weight, poor water resistance, low strength, etc., which are not convenient for construction and poor in practical performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment relates to a lightweight reinforced gypsum board, including the following raw materials in parts by weight: 35 parts of phosphogypsum, 7 parts of desulfurized gypsum, 10 parts of talcum powder, 5 parts of light calcium carbonate, 8 parts of expanded vermiculite, modified 4 parts of starch, 3 parts of fiber powder, 2 parts of tourmaline, 2 parts of activated carbon, 1 part of citric acid, 1 part of superplasticizer and appropriate amount of water.

[0031] Wherein, the expanded vermiculite is formed by placing the vermiculite raw material in an extruding furnace at 600° C. and expanding it for 10 seconds; the particle size of the expanded vermiculite is 1-2 mm.

[0032] Wherein, the preparation method of described modified starch is as follows:

[0033] (1) Weigh 20 parts of potato starch, 5 parts of methacrylic acid, 3 parts of styrene, 3 parts of hydrogen peroxide, and 2 parts of sodium stearate in parts by weight;

[0034] (2) emulsifying the methacry...

Embodiment 2

[0045] This embodiment relates to a lightweight reinforced gypsum board, including the following raw materials in parts by weight: 50 parts of phosphogypsum, 12 parts of desulfurized gypsum, 20 parts of talcum powder, 15 parts of light calcium carbonate, 16 parts of expanded vermiculite, modified 9 parts of starch, 7 parts of fiber powder, 4 parts of tourmaline, 3 parts of activated carbon, 2 parts of citric acid, 3 parts of superplasticizer and appropriate amount of water.

[0046] Wherein, the expanded vermiculite is formed by placing the vermiculite raw material in an extruding furnace at 900° C. for 10 seconds; the particle size of the expanded vermiculite is 1-2 mm.

[0047] Wherein, the preparation method of described modified starch is as follows:

[0048] (1) Weigh 20 parts of potato starch, 5 parts of methacrylic acid, 3 parts of styrene, 3 parts of hydrogen peroxide, and 2 parts of sodium stearate in parts by weight;

[0049] (2) emulsifying the methacrylic acid, st...

Embodiment 3

[0060] This embodiment relates to a lightweight reinforced gypsum board, including the following raw materials in parts by weight: 40 parts of phosphogypsum, 9 parts of desulfurized gypsum, 12 parts of talcum powder, 7 parts of light calcium carbonate, 10 parts of expanded vermiculite, modified 5 parts of starch, 4 parts of fiber powder, 2.3 parts of tourmaline, 2.2 parts of activated carbon, 1.3 parts of citric acid, 1.4 parts of superplasticizer and appropriate amount of water.

[0061] Wherein, the expanded vermiculite is formed by placing the vermiculite raw material in an extruding furnace at 700° C. for 10 seconds; the particle size of the expanded vermiculite is 1-2 mm.

[0062] Wherein, the preparation method of described modified starch is as follows:

[0063] (1) Weigh 20 parts of potato starch, 5 parts of methacrylic acid, 3 parts of styrene, 3 parts of hydrogen peroxide, and 2 parts of sodium stearate in parts by weight;

[0064] (2) emulsifying the methacrylic ac...

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Abstract

The invention discloses a lightweight reinforced gypsum board. The lightweight reinforced gypsum board is prepared from the following raw materials in parts by weight: 35-50 parts of phosphogypsum, 7-12 parts of desulfurized gypsum, 10-20 parts of talcum powder, 5-15 parts of lightweight calcium carbonate, 8-16 parts of expanded vermiculite, 4-9 parts of modified starch, 3-7 parts of fiber powder,2-4 parts of tourmaline, 2-3 parts of active carbon, 1-2 parts of citric acid, 1-3 parts of water reducing agent and a proper amount of water. The lightweight reinforced gypsum board disclosed by theinvention is low in density and high in strength, has a better insulating effect and water resistance and is convenient in construction. A preparation method of the lightweight reinforced gypsum board is simple, is low-cost, and facilitates large-scale production.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a lightweight reinforced gypsum board and a preparation method thereof. Background technique [0002] Gypsum board is a material made of building gypsum as the main raw material. It is a building material with light weight, high strength, thin thickness, convenient processing, sound insulation, heat insulation and fire resistance. It is one of the new lightweight panels that are currently being developed. [0003] At present, the gypsum boards on the market generally have the characteristics of high unit weight, poor water resistance, low strength, etc., which are not convenient for construction and have poor practical performance. Contents of the invention [0004] The invention provides a lightweight reinforced gypsum board and its preparation method, which solves the problems in the background technology. The lightweight reinforced gypsum board of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B24/38C04B111/40
CPCC04B28/144C04B24/38C04B2111/00025C04B2111/40C04B11/26C04B14/042C04B14/28C04B14/204C04B14/041C04B14/022C04B24/06C04B2103/302C04B20/0048
Inventor 孙康
Owner 合肥语林装饰工程有限公司
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