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Core board for fireproof door

A fire door core and board technology, applied in the field of fireproof materials, can solve the problems of moisture absorption, brine return, waste, serious corrosion of the fire door steel substrate, etc., and achieve the effect of improving the flexural and flexural strength

Inactive Publication Date: 2015-09-02
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the fireproof materials used in fireproof doors are magnesite materials, which contain a large amount of halogen ions (mainly chloride ions), so moisture absorption and halogen return are very easy to occur in high temperature and humid environments, and the steel substrate of fireproof doors is severely corroded, resulting in a lot of waste
[0003] The existing technology contains halogen ions, which are easy to absorb moisture and reverse halogen, and severely corrode the steel substrate of fire doors

Method used

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  • Core board for fireproof door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] A fire door core plate, composed of the following components in mass percentage:

[0079] Solid material 60%, liquid material 40%;

[0080] Taking the total amount of solid material as 100%, among them,

[0081] MgSO 4 ·7H 2 O, 30%;

[0082] MgO, 60%;

[0083] Silica powder, 11%;

[0084] Admixture, 3%;

[0085] Taking the total amount of liquid material as 100%, among them,

[0086] Magnesium sulfate aqueous solution, 50%;

[0087] Foaming agent, 3%;

[0088] water, 40%,

[0089] Its preparation method is: take the total material 1000g as an example

[0090] Step 1. Weigh the required MgSO in proportion 4 Add a certain amount of tap water to 7H2O in a large beaker, and stir to dissolve in a constant temperature water bath at 50°C;

[0091] Step 2. Weigh the required MgO and silicon micropowder in proportion, and fully mix them in a barrel for later use;

[0092] Step 3. After the magnesium sulfate in step 1 is completely dissolved, take it out, add a proport...

Embodiment 2

[0097] A fire door core plate, composed of the following components in mass percentage:

[0098] 70% solid material, 30% liquid material;

[0099] Taking the total amount of solid material as 100%, among them,

[0100] MgSO 4 ·7H 2 O, 35%;

[0101] MgO, 50%;

[0102] Silica powder, 13%;

[0103] Admixture, 2%;

[0104] Taking the total amount of liquid material as 100%, among them,

[0105] Magnesium sulfate aqueous solution, 60%;

[0106] Foaming agent, 2%;

[0107] water, 45%,

[0108] The preparation method is the same as in Example 1.

Embodiment 3

[0110] A fire door core plate, composed of the following components in mass percentage:

[0111] Solid material 66.47%, liquid material 33.53%;

[0112] Taking the total amount of solid material as 100%, among them,

[0113] MgSO 4 ·7H 2 O, 30.91%;

[0114] MgO, 54.91%;

[0115] Silica powder, 12.12%;

[0116] Admixture, 2.06%;

[0117] Taking the total amount of liquid material as 100%, among them,

[0118] Magnesium sulfate aqueous solution, 54.75%;

[0119] Foaming agent, 2.52%;

[0120] Water, 42.73%.

[0121] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a core board for a fireproof door. The core board is prepared from the following components in percentage by mass: 60%-70% of a solid material and 30%-40% of a liquid material, wherein the solid material comprises the following raw materials in percentage by mass: 30%-35% of MgSO4.7H2O, 50%-60% of MgO, 11%-13% of silica powder and 2%-3% of an admixture; and the liquid material comprises the following raw materials in percentage by mass: 50%-60% of a magnesium sulfate solution, 2%-3% of a foaming agent and 40%-45% of water. The core board for the fireproof door does not contain any halide ion, is simple in component, high in corrosion resistance, free of active magnesia and low in cost, has the advantages of excellent fireproof performance and high bending resistance and fracture resistance, simultaneously has anticorrosive and moisture-proof effects, and can be applied to production of fireproof doors on a large scale.

Description

technical field [0001] The invention relates to the field of fireproof materials, in particular to a fireproof door core plate. Background technique [0002] At present, most of the fireproof materials used in fireproof doors are magnesite materials, which contain a large amount of halogen ions (mainly chloride ions), so moisture absorption and halogen return are very easy to occur in high temperature and humid environments, and the steel substrate of fireproof doors is severely corroded, resulting in A lot of waste. [0003] The prior art contains halogen ions, which are very easy to absorb moisture and reverse halogen, and severely corrode the steel substrate of the fire door. The invention does not contain any halogen ions, has extremely high anticorrosion performance and fireproof performance, and has high flexural and flexural strength. Contents of the invention [0004] In order to solve the above-mentioned problems in the prior art, the object of the present inven...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B28/10C04B14/06
Inventor 韩璞何荣幸彭敬东黄成邓传跃
Owner SOUTHWEST UNIVERSITY
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