Making method of high-strength light-weight integral-hydrophobic xonotlite fireproof insulation board

A technology of xonotlite and its production method, which is applied in the manufacture of tools, ceramic molding machines, etc., which can solve problems such as difficulty in fully forming xonotlite, failure of organic glue, and decline in fire resistance, so as to improve strength and flexibility , low strength loss, high specific gravity

Active Publication Date: 2012-12-19
山东昊海凤栖新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional dynamic synthesis method for producing xonotlite is to synthesize in saturated steam at a temperature of 180°C to 210°C and a pressure of 1.8 to 2.2MPa, and the Ca/Si ratio (molar ratio) of the slurry is 0.9 to 1.1. Influenced by the activity of raw materials and calcareous raw materials, it is difficult to fully form xonotlite, even if it forms its developed crystals, it is not sufficient
[0003] Before this invention, in order to make the calcium silicate molded body stronger and more flexible, there was an invention of ad

Method used

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  • Making method of high-strength light-weight integral-hydrophobic xonotlite fireproof insulation board
  • Making method of high-strength light-weight integral-hydrophobic xonotlite fireproof insulation board

Examples

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Effect test

Embodiment 1

[0023] A method for manufacturing a high-strength and light-weight integral hydrophobic xonotlite thermal insulation and fireproof board, comprising the following steps:

[0024] 1) After mixing the siliceous raw material and the calcareous raw material according to the Ca / Si ratio (molar ratio) of 0.9, inject it into a dynamic reaction kettle, use superheated steam at 250°C, and steam pressure at 2.0Mpa to synthesize for 3 hours to obtain hard silicon calcium Stone slurry, adding reinforcing fiber;

[0025] 2) Remove excess water from the xonotlite slurry obtained in step 1), and add 0.1% inorganic glue (by weight ratio of slurry to inorganic glue);

[0026] 3) Adding 0.1% reactive silicone water repellent to the xonotlite slurry obtained in step 2) to form an interfacial combination with the slurry;

[0027] 4) The xonotlite slurry prepared in the above step 3) is molded and dried to obtain a xonotlite plate with uniform material, high strength, light weight and completely ...

Embodiment 2

[0030] A method for manufacturing a high-strength and light-weight integral hydrophobic xonotlite thermal insulation and fireproof board, comprising the following steps:

[0031] 1) After mixing the siliceous raw material and the calcareous raw material according to the Ca / Si ratio (molar ratio) of 1.1, pour it into a dynamic reaction kettle, and use 400°C superheated steam at a steam pressure of 2.7MPa to synthesize it for 8 hours to obtain hard silicon calcium Stone slurry, adding reinforcing fiber;

[0032] 2) Remove excess water from the xonotlite slurry obtained in step 1), and add 8% inorganic glue (by weight ratio of slurry to inorganic glue);

[0033] 3) Adding 8% reactive silicone water repellent to the xonotlite slurry obtained in step 2) to form an interfacial combination with the slurry;

[0034] 4) The xonotlite slurry prepared in the above step 3) is molded and dried to obtain a xonotlite plate with uniform material, high strength, light weight and completely hy...

Embodiment 3

[0037] A method for manufacturing a high-strength and light-weight integral hydrophobic xonotlite thermal insulation and fireproof board, comprising the following steps:

[0038] 1) After mixing the siliceous raw material and the calcareous raw material according to the Ca / Si ratio (molar ratio) of 1.0, inject it into a dynamic reaction kettle, and use 320°C superheated steam at a steam pressure of 2.4Mpa to synthesize it for 5 hours to obtain xonotlite Slurry, adding reinforcing fibers;

[0039] 2) Remove excess water from the xonotlite slurry obtained in step 1), and add 5% inorganic glue (by weight ratio of slurry to inorganic glue);

[0040] 3) Adding 6% of reactive silicone water repellent to the xonotlite slurry obtained in step 2) to form an interfacial combination with the slurry;

[0041] 4) The xonotlite slurry prepared in the above step 3) is molded and dried to obtain a xonotlite plate with uniform material, high strength, light weight and completely hydrophobic. ...

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Abstract

The invention discloses a making method of a high-strength light-weight integral-hydrophobic xonotlite fireproof insulation board, comprising the following steps of: (1) mixing silicon raw materials and calcium raw materials according to a Ca/Si mole ratio of 0.9-1.1, then, injecting the mixed raw materials into a dynamic reaction kettle, synthesizing by using superheated steam of 250-400 DEG C at the steam pressure of 2.0-2.7MPa for 3-8hours to obtain xonotlite slurry, and adding reinforced fibers; (2) removing redundant water in the xonotlite slurry obtained in the step (1) and adding 0.1-8% of inorganic glue (according to the weight ratio of the slurry to the inorganic glue); (3) adding 0.1-8% of reaction type organic silicon waterproof agent in the xonotlite slurry obtained in the step (2) to enable the reaction type organic silicon waterproof agent and the slurry to form interface combination; and (4) carrying out compression molding on the xonotlite slurry prepared in the step (3), and drying to obtain the material-uniform high-strength light-weight complete-hydrophobic xonotlite board. The fireproof insulation board produced by the invention has the characteristics of high strength, uniform material, no bubble hole, light weight and complete hydrophobicity.

Description

technical field [0001] The invention relates to a production method of a high-strength and light-weight integral hydrophobic xonotlite thermal insulation and fireproof board, which is mainly used for thermal insulation and fireproofing of building exterior walls, steel structure insulation and fireproofing, fireproof door core boards and flue air ducts in construction projects. Background technique [0002] The traditional dynamic synthesis method for producing xonotlite is to synthesize in saturated steam at a temperature of 180°C to 210°C and a pressure of 1.8 to 2.2MPa, and the Ca / Si ratio (molar ratio) of the slurry is 0.9 to 1.1. Due to the influence of raw materials and the activity of calcareous raw materials, it is difficult to fully form xonotlite, and even if it forms its developed crystals, it is not sufficient. [0003] Before this invention, in order to make the calcium silicate molded body stronger and more flexible, there was an invention of adding a polymer d...

Claims

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Application Information

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IPC IPC(8): B28B1/52B28B3/02C04B28/26C04B28/24
Inventor 郭立平
Owner 山东昊海凤栖新材料科技有限公司
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