Fast growing wood steeping liquor, method for preparing fast growing wood steeping liquor and method for steeping wood
A technology of impregnating liquid and fast-growing wood, applied in the direction of impregnating wood, wood impregnation, wood treatment, etc., can solve the problems of impregnating liquid cannot be reused, the improvement performance of impregnating liquid is single, and the improvement performance of wood is unstable, and achieves high reusability. , Comprehensive performance, high uniformity effect
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Embodiment 1
[0042] Implementation example 1 (fast-growing wood impregnation solution and preparation method 1):
[0043] 1.1 Production raw materials: formaldehyde 2910kg, urea 1770kg (feeding in three times, each feeding amount is: 1221.3kg, 194.7kg, 354kg), sodium carboxymethyl cellulose 2.1kg, ammonia water 450kg, melamine 180kg, polyvinyl alcohol 6kg, Hexamethylenetetramine 9kg.
[0044] 1.2 Preparation method:
[0045] 1.2.1 Add formaldehyde in the reaction kettle according to the ratio, first add 1221.3kg of urea, polyvinyl alcohol, ammonia water, hexamethylenetetramine, melamine, sodium carboxymethyl cellulose, and add sodium hydroxide to adjust the pH value to 7.5 ;
[0046] 1.2.2 Raise the temperature to 85°C and keep it for 10 minutes, then add 194.7kg of urea and keep it for 10 minutes;
[0047] 1.2.3 Cool to 80°C and add formic acid to adjust the pH value to 5.8 for polycondensation reaction. When the water point appears foggy, add sodium hydroxide to adjust the pH value to 7...
Embodiment 2
[0050] Implementation example 2 (fast-growing wood impregnation solution and preparation method 2):
[0051] 2.1 Production raw materials: formaldehyde 3000kg, urea 1890kg (feeding in three times, each feeding amount is: 1323kg, 170.1kg, 396.9kg), sodium carboxymethyl cellulose 2.55kg, ammonia water 360kg, melamine 200kg, polyvinyl alcohol 9kg, Diethylene glycol 75kg, hexamethylenetetramine 15kg.
[0052] 2.2 Preparation method:
[0053] 2.2.1 Add formaldehyde in the reaction kettle according to the ratio, first add 1323kg of urea, polyvinyl alcohol, ammonia water, hexamethylenetetramine, 300kg of water, melamine, sodium carboxymethyl cellulose, and add sodium hydroxide to adjust the pH value to 8.0;
[0054] 2.2.2 Raise the temperature to 90°C and keep it for 15 minutes, then add 170.1kg of urea and keep it for 15 minutes;
[0055] 2.2.3 Cool to 83°C and add formic acid to adjust the pH value to 6.2 for polycondensation reaction. When the water point appears foggy, add sod...
Embodiment 3
[0059] Implementation example 3 (fast-growing wood impregnation solution and preparation method 3):
[0060] 3.1 Production raw materials: formaldehyde 3150kg, urea 1950kg (feeding in three times, each feeding amount is: 1384.5kg, 195kg, 370.5kg), sodium carboxymethyl cellulose 3kg, ammonia water 330kg, melamine 210kg, polyvinyl alcohol 15kg, two Ethylene glycol 150kg, hexamethylenetetramine 18kg.
[0061] 3.2 Preparation method:
[0062] 3.2.1 Add formaldehyde in the reaction kettle according to the ratio, first add 1384.5kg of urea, polyvinyl alcohol, ammonia water, hexamethylenetetramine, 600kg of water, melamine, sodium carboxymethyl cellulose, add sodium hydroxide to adjust PH value to 9.0;
[0063] 3.2.2 Raise the temperature to 96°C and keep it for 20 minutes, then add 195kg of urea and keep it for 20 minutes;
[0064] 3.2.3 Cool to 86°C and add formic acid to adjust the pH value to 6.9 for polycondensation reaction. When the water point appears foggy, add sodium hyd...
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