Manufacturing method of environment-friendly five-layer plywood
A production method and technology of five-plywood, which is applied in the field of wood processing, can solve the problem of large formaldehyde released by five-plywood, and achieve the effects of improving environmental protection, providing environmental protection effects, and high bonding strength
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Embodiment 1
[0028] A kind of manufacturing method of environment-friendly five-ply board, comprises the following steps:
[0029] (1) Veneer drying: several veneers are dried so that the moisture content of the veneers is 5%.
[0030] (2) Embryo formation treatment: the veneers processed in step (1) are grouped into five pieces to form embryos, and the five veneers are synthesized from bottom to top into a five-ply embryo, and two adjacent veneers Glue them together with a special adhesive. The special adhesive is prepared from the following raw materials in parts by weight: 50 parts of modified phenolic glue, 20 parts of soybean protein glue, 8 parts of sodium hydroxide, 4 parts of anti-enzyme agent, 4 parts of flame retardant and 15 parts of filler . Wherein, the flame retardant is prepared from the following raw materials in parts by weight: 20 parts of chlorinated paraffin, 30 parts of ammonium oligophosphate, 10 parts of ammonium pyrophosphate and 10 parts of boric acid. The antif...
Embodiment 2
[0041] A kind of manufacturing method of environment-friendly five-ply board, comprises the following steps:
[0042] (1) Veneer drying: several veneers are dried so that the moisture content of the veneers is 10%.
[0043] (2) Embryo formation treatment: the veneers processed in step (1) are grouped into five pieces to form embryos, and the five veneers are synthesized from bottom to top into a five-ply embryo, and two adjacent veneers Glue them together with a special adhesive. The special adhesive is prepared from the following raw materials in parts by weight: 60 parts of modified phenolic glue, 30 parts of soybean protein glue, 12 parts of sodium hydroxide, 8 parts of anti-enzyme agent, 8 parts of flame retardant and 20 parts of filler . Wherein, the flame retardant is prepared from the following raw materials in parts by weight: 30 parts of chlorinated paraffin, 40 parts of ammonium oligophosphate, 16 parts of ammonium pyrophosphate and 16 parts of boric acid. The ant...
Embodiment 3
[0054] A kind of manufacturing method of environment-friendly five-ply board, comprises the following steps:
[0055] (1) Veneer drying: several veneers are dried so that the moisture content of the veneers is 8%.
[0056] (2) Embryo formation treatment: the veneers processed in step (1) are grouped into five pieces to form embryos, and the five veneers are synthesized from bottom to top into a five-ply embryo, and two adjacent veneers Glue them together with a special adhesive. The special adhesive is prepared from the following raw materials in parts by weight: 55 parts of modified phenolic glue, 25 parts of soybean protein glue, 10 parts of sodium hydroxide, 6 parts of anti-enzyme agent, 6 parts of flame retardant and 17 parts of filler . Wherein, the flame retardant is prepared from the following raw materials in parts by weight: 25 parts of chlorinated paraffin, 35 parts of ammonium oligophosphate, 13 parts of ammonium pyrophosphate and 13 parts of boric acid. The anti...
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