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Formula of putty coated on gypsum inner wall

An interior wall and putty technology, which is applied in the formulation field of gypsum interior wall plaster putty, and can solve problems such as powdering on the wall surface

Inactive Publication Date: 2010-06-16
河南省翔宇建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing kitchens, bathrooms, basements and other areas that are prone to moisture are prone to chalking, cracking, peeling, and falling off after the wall is damp

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0005] 100 parts of desulfurized gypsum; 5 parts of talc powder; 0.3 parts of methyl cellulose; 0.1 part of polyvinyl alcohol; 0.01 part of citric acid;

[0006] The test report is as follows: initial setting time: 30min

[0007] Final setting time: 45min

[0008] Flexural strength: 2.34MPa

[0009] Compressive strength: 4.51MPa

[0010] Adhesive strength: 0.30MPa

Embodiment 2

[0012] 100 parts of desulfurized gypsum; 20 parts of talcum powder; 5 parts of methyl cellulose; 1 part of polyvinyl alcohol; 1 part of citric acid;

[0013] The test report is as follows: initial setting time: 110min

[0014] Final setting time: 125min

[0015] Flexural strength: 1.76MPa

[0016] Compressive strength: 3.55MPa

[0017] Adhesive strength: 0.32MPa

Embodiment 3

[0019] 100 parts of desulfurized gypsum; 13 parts of talcum powder; 2 parts of methyl cellulose; 0.5 parts of polyvinyl alcohol; 0.1 part of citric acid;

[0020] The test report is as follows: initial setting time: 80min

[0021] Final setting time: 95min

[0022] Flexural strength: 2.10MPa

[0023] Compressive strength: 5.05MPa

[0024] Adhesive strength: 0.38MPa.

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Abstract

The invention discloses a formula of putty coated on a gypsum inner wall. The putty comprises the following raw materials in parts by weight: 100 parts of desulfurized gypsum, 5-20 parts of French chalk, 0.3-5 parts of methyl cellulose, 0.1-1 part of polyvinyl alcohol, 0.01-1 part of sodium citrate and 0.01-1 part of redispersable gelatine powder. The raw materials are uniformly mixed and stirred to obtain the product. The initial setting time is 30-110 minutes, the final setting time is 45-125 minutes, the folding strength is 1.76-2.34 MPa, the compression strength is 3.55-5.05 MPa, and the bonding strength is 0.30-0.38 MPa. The invention has the advantages of strong adhesive force, high bonding strength, favorable air permeability, high water resistance, delicate hand feel of the wall surface, soft appearance and favorable tactile sensation.

Description

Technical field: [0001] The invention relates to a formula of gypsum interior wall plastering putty, which is especially suitable for decorating base surfaces with relatively high humidity, such as kitchens, toilets, basements and the like. Background technique: [0002] Existing kitchens, bathrooms, basements and other areas that are prone to moisture are prone to powdering, cracking, peeling, and falling off on the walls after being damp. Invention content: [0003] The task of the present invention is to propose a kind of formula of gypsum interior wall plastering putty which is not easy to crack, peel and fall off after the wall surface is damp, and has strong water resistance. The task of the present invention is accomplished like this, a kind of formula of gypsum interior wall plastering putty is characterized in that: raw material deployment ratio by weight is: 100 parts of desulfurized gypsum, 5-20 parts of talcum powder, 0.3-5 parts of methyl cellulose , 0.1-1 pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B24/38
CPCC04B28/144C04B2201/50C04B2111/27C04B2111/00663C04B2111/00267
Inventor 李耕伟
Owner 河南省翔宇建材科技有限公司
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