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Expanded perlite fire-proof composite core plate preparation process

A technology of expanded perlite and preparation process, applied in fire prevention, manufacturing tools, building components, etc., can solve the problems of poor strength and fragile, small pieces, fear of water, etc., and achieves good thermal insulation, stable physical and chemical properties, good thermal insulation and fire prevention. performance effect

Active Publication Date: 2014-05-07
TIANJIN ANMEI ENVIRONMENTAL TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the above problems, the present invention provides a preparation process of expanded perlite fireproof composite core board, the purpose is to solve the technological problems of small size, fear of water, poor strength and fragility of perlite boards in the market. Woven cloth, middle barbed wire and expanded perlite, high temperature resistant inorganic aggregate, high temperature resistant inorganic binder as the main material, the inorganic environmental protection composite core board processed through a whole set of procedures, fire performance A1 level, good strength (compression resistance Strength 0.35-0.8MPa), density 260-300Kg / m 3 Expanded perlite fireproof composite core board with water repellency rate 92%, swelling rate (%) ≤ 0.25, thermal conductivity ≤ 0.046w / m.k

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Step 1. Prepare a water glass solution of 23.5Kg, with a magnesia degree of 32 degrees;

[0007] Step 2. Prepare 14Kg of water glass solution, magnesium oxide and silica slurry and mix them uniformly: water glass solution (38 degrees of magnesia), magnesium oxide (425 meshes), silica (425 meshes) The mass ratio of water agent is 1:0.27:0.55:0.05;

[0008] Step 3, prepare a mixture of 47Kg: in step 1, add a hydrophobic agent, and the mass ratio of expanded perlite is 100:5:95;

[0009] Step 4. Plate making: lay a layer of non-woven fabric under the core plate mold, spray and scrape it evenly on Step 2, then put 20% of Step 3 to level it, then lay it on the wire mesh, and then put 60% of Step 3 to level it , and then flatten the wire mesh, then put 20% of the step 3 and scrape it flat, and then flatten the non-woven fabric of step 2 by spraying and scraping, use the pressure 200T press to extrude the back mold, and then release the mold at a pressure of 150T and a temper...

Embodiment 2

[0011] Step 1. Prepare a water glass solution of 23.5Kg, with a magnesia degree of 32 degrees;

[0012] Step 2. Prepare 14Kg of water glass solution, magnesium oxide and silica slurry and mix them uniformly: water glass solution (38 degrees of magnesia), magnesium oxide (425 meshes), silica (425 meshes) The mass ratio of water agent is 1:0.27:0.55:0.05;

[0013] Step 3, prepare a mixture of 46Kg: in step 1, add a hydrophobic agent, and the mass ratio of expanded perlite is 100:5:95;

[0014] Step 4. Plate making: lay a layer of non-woven fabric under the core plate mold, spray and scrape it evenly on Step 2, then put 20% of Step 3 to level it, then lay it on the wire mesh, and then put 80% of Step 3 to level it , and then flatten and scrape the non-woven fabric of step 2, use a pressure 200T press to extrude the back mold, and then mold and dry it on a press with a pressure of 150T and a temperature of 90°C for 60 minutes, and then continue at room temperature for 15 minutes ...

Embodiment 3

[0016] Step 1. Prepare a water glass solution of 23.5Kg, with a magnesia degree of 32 degrees;

[0017] Step 2. Prepare 14Kg of water glass solution, magnesium oxide and silica slurry and mix them uniformly: water glass solution (38 degrees of magnesia), magnesium oxide (425 meshes), silica (425 meshes) The mass ratio of water agent is 1:0.27:0.55:0.05;

[0018] Step 3, prepare a mixture of 45Kg: in step 1, add a hydrophobic agent, and the mass ratio of expanded perlite is 100:5:95;

[0019] Step 4. Plate making: lay a layer of non-woven fabric under the core plate mold, spray and scrape it evenly on Step 2, then put 20% of Step 3 to level it, then lay it on the wire mesh, and then put 80% of Step 3 to level it , and then flatten and scrape the non-woven fabric of step 2, use a pressure 200T press to extrude the back mold, and then mold and dry it on a press with a pressure of 150T and a temperature of 90°C for 60 minutes, and then continue at room temperature for 15 minutes ...

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Abstract

The invention provides a preparation technology of an expanded perlite fire-proof composite core plate, which aims to solve the process technical problem that perlite plates in market are small in size, not waterproof and fragile due to poor intensity. The expanded perlite fire-proof composite core plate is characterized in that an upper-layer non-woven fabric and a lower-layer non-woven fabric are arranged, a wire mesh in the middle, expanded perlite, high temperature resistant inorganic aggregate and a high temperature resistant inorganic binder are used as main materials, and the inorganic environmental-friendly composite core plate is the expanded perlite fire-proof composite core plate which is formed through a complete set of processing steps and has A1 level of fire-proof performance, good intensity (compression strength: 0.35-0.8MPa), density of 260-300Kg / cubic meter, hydrophobic rate of 92%, bulking factor of smaller than or equal to 0.25 and heat conductivity of smaller than or equal to 0.046.

Description

technical field [0001] The invention relates to a fireproof composite core board, in particular to a preparation process of an expanded perlite fireproof composite core board. Background technique [0002] Existing technologies on the market: mineral wool, polystyrene (EPS), polyurethane (PU), extrusion (XPS), paper honeycomb, aluminum honeycomb and other composite core boards. The disadvantage of the existing composite core board is the harm to the environment and the human body: the mineral wool is the most harmful to the human body and the environment, and the mineral wool itself is not poisonous. The almost invisible fibers, when these tiny fibers are released, can float in the air for a long time, are inhaled into the human body and adhere to and deposit in the lungs, causing lung diseases. Exposure to asbestos fibers can cause the following diseases: lung cancer, mesothelial cancer, pleural or peritoneal cancer, asbestosis. And its economy, aluminum honeycomb price i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/94C04B28/26B28B1/00
Inventor 赵长斌
Owner TIANJIN ANMEI ENVIRONMENTAL TECH ENG
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