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Inorganic foaming refractory door core board and preparation method thereof

An inorganic foaming and door core board technology, which is applied to fire doors, door leaves, windows/doors, etc., can solve the problems of shortening the service life of fire doors, difficulty in mechanized production, and reducing the strength of door core boards, so as to improve the fire resistance level and Anti-corrosion performance, good dimensional stability, good fire performance

Inactive Publication Date: 2018-07-17
HEFEI YIZHI DOORS & WINDOWS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the rising price of raw materials, the cost of expanded perlite boards has increased, the production process is complicated, it is difficult to realize mechanized production, and the production capacity is low. At present, most fire door core enterprises have stopped producing expanded perlite door core boards
The magnesite fire door core board has the disadvantages of easy moisture absorption and halogen return, corrosion of the door board, and long-term corrosion of moisture, which reduces the strength of the door core board and shortens the service life of the fire door.

Method used

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  • Inorganic foaming refractory door core board and preparation method thereof
  • Inorganic foaming refractory door core board and preparation method thereof
  • Inorganic foaming refractory door core board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of inorganic foam fire-resistant door core board, takes the raw material of following table 2:

[0027] Table 2

[0028]

[0029]

[0030] The above-mentioned modified basalt fiber is prepared by the following steps: take a basalt fiber with a length of 50-100 μm and place it in a grinder for 2.5 hours, so that the length of the basalt fiber is less than or equal to 0.5 μm, and the aspect ratio is less than 10; then use acrylic acid The copolymer infiltrated the ground basalt fiber for 4 hours; then coated the infiltrated chopped carbon fiber with low-carbon polyhydric alcohol, and the bulk density of the basalt fiber was controlled at 1.0g / cm 3 Below, promptly make the required modified basalt fiber of the raw material of the present invention;

[0031] The above-mentioned modified attapulgite clay is prepared by the following steps: roast the attapulgite clay after removing impurities at 250° C. for 1 hour, then soak it in 8% hydrochloric acid solution f...

Embodiment 2

[0037] A kind of inorganic foaming fire-resistant door core board, takes the raw material of following table 3 by weighing:

[0038] table 3

[0039]

[0040]

[0041] The above-mentioned modified basalt fiber is prepared by the following steps: take a basalt fiber with a length of 50-100 μm and grind it in a grinder for 3 hours, so that the length of the basalt fiber is less than or equal to 0.3 μm, and the aspect ratio is less than 8; then use acrylic acid copolymerization The ground basalt fiber was infiltrated with the ground basalt fiber for 5 hours; then the infiltrated chopped carbon fiber was coated with low-carbon polyhydric alcohol, and the bulk density of the basalt fiber was controlled at 1.0g / cm 3 Below, promptly make the required modified basalt fiber of the raw material of the present invention;

[0042] The above-mentioned modified attapulgite clay is obtained through the following steps: roast the attapulgite clay after removal of impurities at 300°C fo...

Embodiment 3

[0048] A kind of inorganic foamed fire-resistant door core board, takes the raw material of following table 4:

[0049] Table 4

[0050]

[0051]

[0052] The above-mentioned modified basalt fiber is prepared by the following steps: take a basalt fiber with a length of 50-100 μm and place it in a grinder to grind for 3.5 hours, so that the length of the basalt fiber is less than or equal to 0.5 μm and the aspect ratio is less than 8; then use acrylic acid The copolymer soaked the ground basalt fiber for 6 hours; then coated the soaked chopped carbon fiber with low-carbon polyhydric alcohol, and the bulk density of the basalt fiber was controlled at 1.0g / cm 3 Below, promptly make the required modified basalt fiber of the raw material of the present invention;

[0053] The above-mentioned modified attapulgite clay is obtained through the following steps: roast the attapulgite clay after removing impurities at 350° C. for 2 hours, then soak it in a hydrochloric acid soluti...

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Abstract

The invention discloses an inorganic foaming refractory door core board and a preparation method thereof, and relates to the technical field of production of door core boards. The door core board is prepared from portland-pozzolana cement, anhydrous magnesium sulfate, expanded graphite, zeolite powder, modified attapulgite clay, organic silicone emulsion, modified basalt fibers, polypropylene fibers, sodium borohydride, polyvinyl acetate, foaming agent, water reducing agent and early strength agent. According to the preparation method, the raw materials are subjected to even mixing, injectionmolding, solidification and the like to obtain the door core board. The door core board has the advantages of being environmentally friendly, high in strength and fireproof grade, excellent in corrosion resistance, capable of preventing dampness, high in stability, wide in application range and long in service life.

Description

technical field [0001] The invention relates to the technical field of door core board production, in particular to an inorganic foamed fire-resistant door core board and a preparation method thereof. Background technique [0002] The fire door core board is the filling material in steel fire doors, anti-theft doors, entrance doors, and craft doors. The performance of the fire door depends largely on the performance of the door core board. In the prior art, door core materials that basically meet the quality and production process requirements of fire doors mainly include expanded perlite boards and magnesite fire door core boards. [0003] Due to the rise in raw material prices for expanded perlite panels, the cost of panels has increased, the production process is complicated, it is difficult to realize mechanized production, and the production capacity is low. At present, most fire door core companies have stopped producing expanded perlite door core panels. However, the...

Claims

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Application Information

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IPC IPC(8): C04B28/04E06B5/16E06B3/70C04B38/10C04B38/02C04B111/28
CPCE06B5/161C04B28/04C04B2111/285E06B3/70E06B2003/7049C04B14/047C04B14/102C04B22/142C04B14/024C04B24/42C04B14/4643C04B16/0633C04B22/0013C04B24/2623C04B24/16C04B24/18C04B24/2641C04B22/12C04B38/10C04B22/10C04B24/125C04B22/124C04B22/147C04B38/02C04B24/124C04B22/085
Inventor 汪中奇
Owner HEFEI YIZHI DOORS & WINDOWS CO LTD
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