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Fire-proof magnesium composite board

A composite board and magnesium technology, which is used in building components, ceramic molding machines, thermal insulation and other directions, can solve the problems of potential safety hazards, unreachable fireproof composite boards, poor strength, etc., and achieve good promotion prospects and application value. Flammable, high-strength effect

Active Publication Date: 2014-01-15
HANGZHOU KECHUANG AIR HOSE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Home decoration and office decoration are becoming more and more popular. At present, wooden boards or gypsum boards are generally used for decoration in the market. Wooden boards are easy to catch fire and pose a safety hazard.
Some boards are replaced by fireproof composite boards, but most fireproof composite boards do not meet the same requirements of A1 level, and some reach A1 level, but due to the existence of chloride ions, it is easy to return halogen, corrode and damage other decoration materials in a humid environment , affect the appearance, and the strength is poor, the water absorption rate is too high, the service life is short, and the cost is high
For this reason, the applicant has developed a new composite panel (200910064677.0) for fire-proof and smoke-exhaust air ducts, and has carried out a preliminary attempt. Improve

Method used

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  • Fire-proof magnesium composite board

Examples

Experimental program
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Effect test

example 1

[0013] The high-strength magnesia calcium silicate cementitious material is used as material A, and the core layer of calcium silicate is used as material B. Material A is prepared from the following components: magnesium sulfate 20%, calcium silicate 15%, silica fume fiber 3 %, magnesium oxide 30%, plant fiber 3%, aluminum sulfate fiber 3%, modifier 3%, bentonite 3%, foaming agent 3%, phosphoric acid 1%, and the rest is water. Wherein the modifying agent is formulated from the following components: 35% citric acid, 35% tartaric acid, 10% methyl cellulose, 11% sodium methylene bis-naphthalene sulfonate (NNO diffusing agent), 9% alum; foaming The agent is prepared from the following components: bone glue 5%, sodium hydroxide 40%, soda ash 9%, rosin 30%, and the rest is water. The material of the core layer B is prepared from the following components: 80% of calcium silicate, 10% of polystyrene particles, 1% of acrylic acid, and the rest is water; the above components are all pe...

example 2

[0016] Same as Example 1, the difference is that the high-strength magnesia calcium silicate cementitious material (A material) is formulated by the following components: magnesium sulfate 25%, calcium silicate 20%, silica fume fiber 5%, magnesium oxide 40%, plant fiber 5%, aluminum sulfate fiber 5%, modifier 5%, bentonite 5%, foaming agent 5%, phosphoric acid 3%, and the rest is water. The core layer (material B) is prepared from the following components: 80% magnesia calcium silicate, 10% polystyrene particles, 2% acrylic acid, and the rest is water; the above components are all percentages by weight.

example 3

[0018] Same as Example 1, the difference is that the high-strength magnesia calcium silicate cementitious material (material A) is formulated from the following components: magnesium sulfate 23%, calcium silicate 18%, silica fume fiber 4%, magnesium oxide 35%, plant fiber 4%, aluminum sulfate fiber 4%, modifier 4%, bentonite 4%, foaming agent 4%, phosphoric acid 2%, and the rest is water. The core layer (material B) is prepared from the following components: 80% magnesium calcium silicate, 10% polyphenylene particles, 0.5% acrylic acid, and the rest is water; the above components are in weight percentage.

[0019] The performance index of the composite fireproof board prepared in the embodiment of the present invention is as follows, and the performance comparison has been carried out with the composite board (200910064677.0) for fireproof and smoke exhaust air duct:

[0020]

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Abstract

The invention belongs to the field of new materials for fire control, and relates to a novel fire-proof composite board. According to the fire-proof composite board, a high-strength magnesium calcium silicate jelling inorganic material is used as an upper plane material and a lower plane material, a magnesium calcium silicate structure composite layer is taken as a core layer, and aluminum sulfate fiber grid glass fibers or non-inflammable non-woven fabrics or plant fibers are taken as reinforcing materials, are laid outside the core layer and are formed in a hot-pressing and composite mode. The high-strength magnesium calcium silicate jelling inorganic material comprises, by weight, 20%-25% of magnesium sulfate, 15%-20% of calcium silicate, 3%-5% of wollastonite fibers, 30%-40% of magnesium oxide, 3%-5% of plant fibers, 3%-5% of aluminum sulfate fibers, 3%-5% of modifying agents, 3%-5% of bentonite, 3%-5% of foaming agents, 1%-3% of phosphoric acid and the balance water. The magnesium composite board can bear a high temperature of 1000 DEG C, the fire-proof performance reaches the A1 level, the material cannot crack or deform, the strength is high, the composite board is sound-proof and thermal-insulating, the service life of the composite board can reach more than 30 years, the composite board can be nailed and planed and is convenient to use, the defects that a traditional fire-proof board is flammable and prone to halogenide, efflorescence and deformation are thoroughly overcome, and the composite board is suitable for decoration fire-proof boards, fire-proof smoke exhaust air pipe and the like.

Description

technical field [0001] The invention belongs to the field of new materials for fire protection, and relates to a novel fireproof composite board, in particular to a magnesium fireproof composite board. Background technique [0002] Home decoration and office decoration are becoming more and more popular. At present, wooden boards or gypsum boards are generally used for decoration in the market. Wooden boards are easy to catch fire and pose a safety hazard. Some boards are replaced by fireproof composite boards, but most fireproof composite boards do not meet the same requirements of A1 level, and some reach A1 level, but due to the existence of chloride ions, it is easy to return halogen, corrode and damage other decoration materials in a humid environment , affect the appearance, and the strength is poor, the water absorption rate is too high, the service life is short, and the cost is high. For this reason, the applicant has developed a new composite panel (200910064677.0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F13/075E04F17/02E04B1/80C04B28/10B28B1/52
Inventor 沈金良沈斌戚海萍
Owner HANGZHOU KECHUANG AIR HOSE CO LTD
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