High-flame-retardance wood fireproof door and making method thereof

Abstract

The invention provides a high-flame-retardance wood fireproof door and a making method thereof. In the making method, a wood door is placed in a vacuum wood softening device tank heated by microwave, and is dipped in high-flame-retardance s-triazine phosphate flame retardant in vacuum such that the flame retardant is fully impregnated in wood gaps of the wood door; a product produced with the making method has the flame retardance higher than a flame retardant limit standard of the first-grade wood fireproof door in China, and has functions of low smoke and no toxicity; and the used flame retardant can ensure that an even flame retardant layer is generated on the surface when high polymer, containing the high flame retardant, in the fireproof door is heated, so that the effects of heat insulation, oxygen isolation and smoke suppression as well as favorable flame retardance are achieved. The making method has the advantages of effectively reducing the production cost and improving the whole flame retardant and fireproof functions of the wood fireproof door, and is accordance with the low smoke and no toxicity development tendency of the fireproof doors at present.

Description

technical field [0001] The invention relates to the technical field of fire doors, in particular to a high flame-retardant wooden fire door and a preparation method thereof. Background technique [0002] A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. Wooden fire doors refer to wood or wood products that are flame-retardant treated to make door frames, door frames, and door panels. It is one of the facilities for building fire separation. It is usually used in indoor and outdoor door openings, firewalls, entrances and exits of stairwells or openings of pipe wells. When a fire occurs, it can prevent the spread of flames and prevent the flow of combustion smoke, which plays an important role in reducing fire losses. safe evacuation of personnel. With the application of modern high-tech science and technology, fire doors are required to minimize the smoke and toxic gases relea...

AI Technical Summary

Problems solved by technology

With the application of modern high-tech science and technology, fire doors are required to minimize the smoke and toxic gases released when materials are thermally decomposed or burned. Traditional fire-retardant wooden fire doors are far from meeting the market's demand for their performance. The wood treated with halogen flame retardants releases a large amount of hydrogen halide gas when the material is burned, and then absorbs water to form highly corrosive hydrohalic acid, causing secondary pollution

Nowadays, the demand for halogen-free wooden fire doors is increasing day by day, and it is difficult for traditional fire doors containing halogen flame retardants to achieve greater development in the 21st century

[0003] At present, all developed countries in the world are paying great attention to high flame-retardant, low-smoke, and low-toxicity wooden fire doors. However, most of the fire doors for decoration in the domestic market have low flame retardant performance, and there are high smoke in flame retardant and fire protection. And the defect of emitting toxic gas, so there is an urgent need for a fire door product with high flame retardancy, low smoke and low toxicity in the market

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