Method for producing high-efficiency and antiflaming stabilized recombinant bamboo plywood

Abstract

The invention relates to a method for producing a high-efficiency and antiflaming stabilized recombinant bamboo plywood. The method comprises three main production steps of: firstly, preparing a high-efficiency stabilized flame retardant by commonly and uniformly mixing the following raw materials in parts by weight: 30-70 parts of powdery water-soluble ammonium polyphosphate, 20-40 parts of boride, 10-30 parts of silicide and 5-30 parts of 50% aqueous solution of transition metal salt chelate or 3-20 parts of 50% aqueous solution of rare-earth metal salt chelate; secondly, selecting raw materials and carrying out antiflaming treatment; and thirdly, manufacturing a final product of the high-efficiency and antiflaming stabilized recombinant bamboo plywood. By means of the method for producing the bamboo plywood, poor-quality bamboos and minordiameter bamboos or tips of moso bamboos can be fully utilized to serve as raw materials, the pressure is only 1-15MPa during pressing, the advantages of low stress, good antiflaming effect, low hygroscopicity, no migration and precipitation, good antimicrobial and insect-prevention properties, low addition amount of the flame retardant and good dimensional stability of the processed recombinant bamboo plywood are achieved, and in addition, heating is not needed in production of the flame retardant so that energy is saved.

Description

technical field [0001] The invention relates to a production method of bamboo plywood, which is a production method of recombined bamboo plywood with good flame retardancy and good mechanical stability after being treated with a bamboo wood flame retardant. Background technique [0002] CN1213603A discloses "the synthesis method of wood flame retardant", and CN101121277A discloses "nitrogen-phosphorus high-efficiency expansion type wood flame retardant and its preparation method", which are respectively phosphorus-nitrogen-boron synergistic flame retardant and nitrogen-phosphorus synergistic flame retardant, from Generally speaking, among the currently developed or commercially available bamboo and wood flame retardants, phosphorus-nitrogen-boron-based flame retardants are more respected, but these flame retardants are easy to absorb moisture, migrate and precipitate, and are added in large amounts. The mechanical properties and dimensional stability of the processed materia...

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Problems solved by technology

[0002] CN1213603A discloses "the synthesis method of wood flame retardant", and CN101121277A discloses "nitrogen-phosphorus high-efficiency expansion type wood flame retardant and its preparation method", which are respectively phosphorus-nitrogen-boron synergistic flame retardant and nitrogen-phosphorus synergistic flame retardant, from Generally speaking, among the currently developed or commercially available bamboo and wood flame retardants, phosphorus-nitrogen-boron-based flame retardants are more respected, but these flame retardants are easy to absorb moisture, migrate and precipitate, and are added in large amounts. The mechanical properties and dimensional stability of the processed materials are not ideal

[0003] CN1887551A discloses "the processing method of carbonized high-density bamboo material", and CN99117809.2 discloses the method that bamboo material is processed into composite profile, all is that moso bamboo is split into bamboo silk, after drying, impregnate and mold, and then through 10-100MPa High-pressure post-curing molding materials do not make full use of small-diameter bamboo and low-quality bamboo as raw materials. The cost is high, the internal stress of the profiles is large, and the dimensional stability is poor. They have not been treated with flame retardants, especially phosphorus-nitrogen-boron-silicon- High-efficiency and synergistic flame retardant treatment of transition metal or rare earth metal ions, does not have flame retardant properties, and has no mildew and insect resistance properties

[0004] After searching, it has not been found that a high-efficiency synergistic bamboo wood flame retardant that uses phosphorus, nitrogen, borosilicate and transition metal or rare earth metal ions to process the recombined bamboo plywood produces a high-efficiency flame-retardant and stable mechanical properties and dimensions. The data reports and related products on the market of the method of reorganizing bamboo plywood

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