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Anti-sagging plasterboard and method for producing same

A gypsum board and anti-sagging technology, applied in the field of anti-sagging gypsum board and its preparation, can solve the problems of poor anti-sagging effect of gypsum board and the like, and achieve a good anti-sagging effect

Active Publication Date: 2012-07-18
NINGBO BEIXIN BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the anti-sagging effect of the gypsum board is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] First take each component (percentage by weight) according to the following proportioning ratio: 0.02% boric acid, 0.4% starch, 0.2% glass fiber, 0.04% foaming agent, 0.01% borax, 0.05% paper and 0.1% coagulant, the balance For gypsum; then, prepare according to the following process:

[0015] a. Break the gypsum first;

[0016] b. Make paper into pulp in the pulp preparation tank, then add borax into the pulp preparation tank and stir with the pulp for 5-10 minutes, then send it into the pulp storage tank and stir for 5-25 minutes, and add borax to the pulp storage tank at the same time Glass fiber stirring for 5 to 25 minutes;

[0017] c, the boric acid is prepared into a solution with a concentration of 2%, and placed in a preparation tank and stirred for 5 to 25 minutes, then left to stand for 15 minutes for subsequent use; here the configuration concentration of boric acid is 2 to 10%.

[0018] d. The above-mentioned prepared pulp mixture, boric acid solution and...

Embodiment 2、3

[0020] Prepare according to the components in the following table, and the preparation process is the same as in Example 1.

[0021] Table 1 embodiment 2, the proportioning of each component of 3 (content in the table is weight percent content)

[0022] starch

glass fiber

Foaming agent

Borax

Paper

coagulant

boric acid

plaster

Example 2

0.5

0.5

0.07

0.04

0.2

0.2

0.1

margin

Example 3

1.2

1.0

0.15

0.08

0.5

0.3

0.25

margin

[0023] Effect:

[0024] The controlled deformation achieved by the 9.5mm thick gypsum board prepared in Example 1 is 8 mm, the controlled deformation achieved by the gypsum board prepared in Example 2 is 5 mm, and the controlled deformation achieved by the gypsum board prepared in Example 3 is 1.6mm. The deformation of ordinary gypsum board with the same specifications without adding boric acid is 15.7mm. ...

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Abstract

The invention discloses an anti-sagging plasterboard comprising the following components by weight percent: 0.02-0.25 percent of boric acid, 0.4-1.2 percent of starch, 0.2-1.0 percent of glass fiber, 0.04-0.15 percent of foaming agent, 0.01-0.08 percent of borax, 0.05-0.5 percent of paper and the balance of the gypsum. The invention also discloses a method for producing the anti-sagging plasterboard, comprising the following steps: a, making paper into paper pulp solution, dissolving boric acid and borax into the paper pulp solution, and adding glass fiber to the paper pulp solution to form paper pulp mixture; and b, stirring the paper pulp mixture to crushed plaster powder, the starch and the foaming agent, and forming the mixture on a forming platform. The anti-sagging plasterboard has good anti-sagging performance, and the deformation amount of the anti-sagging plasterboard can be controlled between 1.6 mm and 8 mm. In addition, the method for producing the anti-sagging plasterboard well solves the problem that the boric acid, the borax and the glass fiber are associated with plaster crystal, which can not be solved by the dry adding in the prior art.

Description

technical field [0001] The invention relates to a sagging-resistant gypsum board and a preparation process thereof. Background technique [0002] Gypsum board is a material made of building gypsum as the main raw material. Because of its light weight, high strength, thinner thickness, convenient processing, and fire resistance, gypsum board is widely used in residential buildings, office buildings, and shops. , Hotels and other places, mainly used as sound-absorbing panels, interior partition walls, ground floor panels, etc. [0003] Patent 200410080357.1 discloses a fire-resistant gypsum board, which is mainly composed of gypsum, glass fiber, starch, foaming agent and other raw materials, and has good fire-resistant performance. However, the anti-sag effect of this gypsum board is poor. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a sagging-resistant gypsum board and a preparation method thereof, and the gy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B24/10C04B14/42
CPCC04B20/02C04B2201/00C04B2111/0062C04B2111/00094C04B28/14Y02W30/91C04B18/241C04B22/0013C04B24/38C04B38/10C04B40/0028C04B2103/008
Inventor 王永生陈红霞郝晓冬冯菊莲周梦文张思洋
Owner NINGBO BEIXIN BUILDING MATERIAL
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