A wood modifier composition, and a method for improving physical and mechanical properties of wood
A technology of wood physical mechanics and modifier, applied in the field of wood modifier composition and wood physical and mechanical properties improvement, can solve the problem of low reactivity, difficulty in giving full play to polymer modification, poor bonding between polymer and cell wall interface And other issues
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Embodiment 1
[0093] Prepare a mixed aqueous solution of 32% concentration of hydroxyethyl methacrylate and 8% concentration of N-hydroxyacrylamide, and add 2% hydrogen peroxide / calcium chloride based on the mass of the monomer as a catalyst as a hydrophilic active system;
[0094] The 10-year-old fast-growing poplar samples (electron microscope photos such as figure 1 (shown) immersed in the hydrophilic active system, after vacuum immersion at -1MPa for 30min, pressure immersion at 1MPa for 2h. After the impregnation is completed, the solution on the surface of the sample is wiped dry and aged at room temperature for one day; the first impregnated wood is obtained;
[0095] The first impregnated wood was directly put into an oven, heated at 80° C. for 6 h to carry out the first heat treatment, and then heated to a constant weight at 103° C. to obtain the first treated wood (electron microscope photos such as: figure 2 shown);
[0096] A reactive system was obtained by adding 0.8% azobis...
Embodiment 2
[0100] Prepare an aqueous solution of 20% concentration of N-hydroxyacrylamide, and add 2% hydrogen peroxide / calcium chloride based on the mass of the monomer as a catalyst as a hydrophilic active system;
[0101] The 10-year-old fast-growing poplar samples (electron microscope photos such as figure 1 shown) immersed in the hydrophilic active system, after vacuum immersion at -1MPa for 30min, pressure immersion at 1MPa for 2h. After the impregnation is completed, the solution on the surface of the sample is wiped dry and aged at room temperature for one day; the first impregnated wood is obtained;
[0102] The first impregnated wood was directly put into an oven, heated at 80° C. for 6 h for the first activation, and then heated to a constant weight at 103° C. to obtain the first treated wood (electron microscope photo and figure 2 resemblance);
[0103] A reactive system was obtained by adding 0.8% azobisisobutyl cyanide based on the mass of the monomer into the methyl met...
Embodiment 3
[0107] An aqueous solution of N-isopropylacrylamide with a concentration of 20% is prepared, and 2% hydrogen peroxide / calcium chloride based on the mass of the monomer is added as a catalyst as a hydrophilic active system;
[0108] The 10-year-old fast-growing poplar samples (electron microscope photos such as figure 1 ) was immersed in the hydrophilic active system, after vacuum immersion at -1MPa for 30min, and pressure immersion at 1MPa for 2h. After the impregnation is completed, the solution on the surface of the sample is wiped dry, and aged at room temperature for one day; the first impregnated wood is obtained;
[0109] The first impregnated wood was directly put into an oven, heated at 80° C. for 6 h for the first activation, and then heated to a constant weight at 103° C. to obtain the first treated wood (electron microscope photo and figure 2 resemblance);
[0110]A reactive system was obtained by adding 0.8% azobisisobutyl cyanide based on the mass of the monome...
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Abstract
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