Green mildew-proof treatment method for wood
A technology for anti-mildew treatment and wood treatment, applied in the direction of wood treatment, wood treatment details, impregnated wood, etc., can solve the problems of inconvenient subsequent application of wood, poor anti-mildew effect of solid wood, low toxicity and high efficiency, etc., and achieve long-term anti-mildew effect. Good results
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Embodiment 1
[0014] 1) Sample preparation
[0015] The sweetgum wood was made into a sample with a specification of 500×120×20 mm (length×width×thickness).
[0016] 2) steam cooking and carbon dioxide leaching treatment
[0017] Place sweetgum wood in a treatment tank that can pass heating medium water vapor and carbon dioxide gas at the same time, pressure-resistant -0.1-4MPa wood high-pressure anticorrosion treatment tank, pass in heating medium saturated water vapor, and pass in carbon dioxide gas from another intake pipe through the compressor , remove the air content in the treatment tank to within 5%, quickly raise the temperature to 100°C, keep the pressure of the treatment tank at 0.5MPa, and keep the holding time for 2h; 120°C, heat preservation time 4h; continue to feed water vapor and carbon dioxide, keep heat at 120°C, process tank pressure 1MPa, dry to a moisture content of less than 5%; stop feeding carbon dioxide, spray to cool down to less than 90°C, adjust humidity, cool ...
Embodiment 2
[0021] 1) Sample preparation
[0022] The sweetgum wood was made into a sample with a specification of 500×120×40 mm (length×width×thickness).
[0023] 2) steam cooking and carbon dioxide leaching treatment
[0024] The steps of the green anti-mildew treatment method for wood in this embodiment are as follows: pass into the heating medium saturated water vapor, pass into carbon dioxide gas from another intake pipe through the compressor, get rid of the air content in the treatment tank to within 5%, and quickly heat up to 110 ℃, the pressure of the treatment tank is maintained at 0.75MPa, and the holding time is 3h; continue to feed water vapor, pressurize the air compressor to feed carbon dioxide, the pressure of the treatment tank is 2MPa, raise the temperature to 135°C, and hold for 6h; continue to feed water vapor and carbon dioxide, and keep warm for 135 ℃, the pressure of the treatment tank is 1.5MPa, and dry to a moisture content of less than 5%; stop feeding carbon di...
Embodiment 3
[0028] 1) Sample preparation
[0029] The sweetgum wood was made into a sample with a specification of 500×120×60 mm (length×width×thickness).
[0030] 2) steam cooking and carbon dioxide leaching treatment
[0031] The steps of the green anti-mold treatment method for wood in the present embodiment are as follows: pass into the heating medium saturated water vapor, pass into carbon dioxide gas from another air inlet pipe through the compressor, remove the air content in the treatment tank to within 5%, and quickly heat up to 120 ℃, the pressure of the treatment tank is maintained at 1.0MPa, and the holding time is 4h; continue to feed water vapor, pressurize the air compressor to feed carbon dioxide, the pressure of the treatment tank is 3MPa, raise the temperature to 150°C, and hold for 8h; continue to feed water vapor and carbon dioxide, and keep warm for 150 ℃, the pressure of the treatment tank is 2.0MPa, and dry to a moisture content of less than 5%; stop feeding carbon...
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