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Expansion type fire fighting glue

A fire-resistant adhesive, intumescent technology, applied in the direction of adhesives, adhesive types, hydrocarbon copolymer adhesives, etc. Simple, good flame retardant effect

Inactive Publication Date: 2008-04-02
江苏京安消防设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the qualified rate of random inspection in the wooden fire door market in my country is less than 5%. One of the main reasons for the unqualified wooden fire doors is the flame retardant problem of the wood used in the production of fire doors, including the defects of the flame retardant itself and the construction process. deficiencies in
But the flame retardancy is slightly poor, and the physical properties such as bonding of water-based sodium silicate fireproof adhesive are poor

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The main technical scheme of the expansion type fireproof glue of the present invention is as follows: it is mainly composed of sodium silicate, kaolin filler, film-forming adhesive and organic expansion base material, and then water is added to the water-based glue. Viscosity: 100-3000 centistokes.

[0017] Among them, sodium silicate mainly forms liquid sodium silicate, which absorbs carbon dioxide in the air to form amorphous silicic acid. The drying and hardening process is as follows: Na2O·nSiO2+CO2+mH2O=Na2CO2+nSiO2·mH2O.

[0018] Sodium silicate (solid formula containing crystal water), kaolin filler, film-forming adhesive, organic expansion base material, and water form a fireproof adhesive. Another 0.1-1.0% defoamer can be added.

[0019] The present invention carries out formula with the ratio of parts by weight:

[0020] Sodium silicate (solid containing crystal water): 30-70 parts, better range is 30-50 parts;

[0021] Inorganic fillers: especially kaolin...

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Abstract

This invention is expansion fire-proofing glue, and it includes aqueous glue made up of sodium silicate, kaolin filler, film adhesive, and organic expansion base material. Its viscosity is 100-3000 centistoke. The content is that crystalline water solid sodium silicate 30-70, the inorganic filler using kaolin or aluminium silicate fiber 20-100, the organic expansion base material is that ammonium polyphosphate, pentaerythritol, melamine ammonium, polyvinyl alcohol, phenolic resin, phosphate ester melamine salt or styrene-maleic anhydride copolymerization resin, addition amount is 3-35, film adhesive is styrene polymer, polyvinyl alcohol, acrylic acid polymer, acrylic acid styrene polymer or venamul, additional amount is 2-20. The product in this invention has good fire resistance, and technique is simple. It is painted to wood surface, then stick three-ply wood, the fire resistance temperature can reach more than 1100 degree centigrade.

Description

technical field [0001] The invention relates to fireproof material products and the field of production thereof, in particular to an intumescent fireproof glue used in the production of wooden fireproof doors. Background technique [0002] At present, the qualified rate of random inspection in the wooden fire door market in my country is less than 5%. One of the main reasons for the unqualified wooden fire doors is the flame retardant problem of the wood used in the production of fire doors, including the defects of the flame retardant itself and the construction process. deficiencies. The flame retardants used by fire door manufacturers for wood are mostly liquid flame retardants made of chemical substances such as phosphates. These substances are either acidic or alkaline, and even return to halogen. Cause corrosion, make the paint produce discoloration and other shortcomings. [0003] Secondly, in the construction process of the above-mentioned flame retardants, the natu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J9/00C09J125/06C09J129/04C09J133/00C09J131/04
Inventor 李青山
Owner 江苏京安消防设备制造有限公司