Process for manufacturing three-ply board by means of trachycarpus martianus leaf sheath fibers
A manufacturing process and leaf sheath technology, applied in the field of mountain palm leaf sheath fiber plywood manufacturing process, can solve the problems of unsatisfactory timber supply and reduced development, and achieve the effect of improving rigidity, not easy to warp and deform, and improving dimensional stability
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Embodiment 1
[0017] After drying the mountain palm leaf sheath fiber to a moisture content of 10, cut it into squares according to requirements, and put it into an environment with an air humidity of 60 and a temperature of 18 degrees Celsius and store it for later use. Put urea-formaldehyde resin with a solid content of 40% in a closed container, with a viscosity of 1.48 and a pH of 8, add distilled water at a temperature of 30 degrees Celsius to dilute the solution concentration to 20%, and stir until no suspended matter is observed. Put the mountain palm leaf sheath fiber into the urea-formaldehyde solution, keep the pressure of the airtight container at 8Mpa, soak for 60 minutes, drain the mountain palm leaf sheath fiber and let it stand for 10 minutes after soaking, then put the mountain palm leaf sheath fiber into the oven, Bake at a temperature of 88 degrees Celsius for 75 hours. After the baking is completed, stop heating. When the temperature of the oven is naturally cooled to 30 d...
Embodiment 2
[0019] After drying the mountain palm leaf sheath fiber to a moisture content of 15%, cut it into squares according to the requirements, and store it in an environment with an air humidity of 65% and a temperature of 20 degrees Celsius for later use. Put urea-formaldehyde resin with a solid content of 45% in a closed container, with a viscosity of 1.49 and a pH of 8.03, add distilled water at a temperature of 35 degrees Celsius to dilute the solution concentration to 25%, and stir until no suspended matter is observed. Put the mountain palm leaf sheath fiber into the urea-formaldehyde solution, keep the pressure of the airtight container at 10Mpa, soak for 45 minutes, drain the mountain palm leaf sheath fiber and let it stand for 12 minutes after soaking, then put the mountain palm leaf sheath fiber into the oven, Bake at a temperature of 90 degrees Celsius for 73 hours. After the baking is completed, stop heating. When the temperature of the oven is naturally cooled to 32 degr...
Embodiment 3
[0021] After drying the mountain palm leaf sheath fiber to a moisture content of 20%, cut it into squares according to the requirements, and put it into an environment with an air humidity of 70% and a temperature of 18 degrees Celsius for storage until use. Put urea-formaldehyde resin with a solid content of 50% in a closed container, with a viscosity of 1.50 and a pH of 8.03, add distilled water at a temperature of 40 degrees Celsius to dilute the solution concentration to 30%, and stir until no suspended matter is observed. Put the mountain palm leaf sheath fiber into the urea-formaldehyde solution, keep the pressure of the airtight container at 12Mpa, soak for 30 minutes, drain the mountain palm leaf sheath fiber and let it stand for 15 minutes after soaking, then put the mountain palm leaf sheath fiber into the oven, Bake at a temperature of 92 degrees Celsius for 72 hours. After the baking is completed, stop heating. When the temperature of the oven is naturally cooled to...
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