Preparation method of wood mildew inhibitor
A mildew inhibitor and wood technology, applied in wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of acid and alkali resistance of mildew inhibitor, short drug effect time, easy leakage and loss, etc., and achieve high electronegativity. , the effect of improving surface strength and impermeability, and high fluidity
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[0033] Preparation of coral ginger essential oil: take coral ginger rhizome and distilled water according to the mass ratio of 1:7, mix and disperse for 2 hours to obtain a dispersion liquid, put the dispersion liquid into a distillation bottle for distillation, control the distillation temperature to 90°C, and the distillation time to 1 hour , remove the impurity that distills out, collect and obtain coral ginger purified liquid, then coral ginger purified liquid and dehydrated alcohol are added in the extraction kettle by mass ratio 20: 1, in the extraction kettle, input supercritical carbon dioxide fluid, at extraction pressure of Extraction is carried out under the conditions of 6MPa and extraction temperature of 25°C. After extraction for 45 minutes, the extracted supercritical carbon dioxide fluid is obtained;
[0034] The extracted supercritical carbon dioxide fluid is introduced into the rectification column for separation, the pressure of the rectification column is co...
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