Wood adhesive active filler and using method thereof
A technology of wood adhesive and active filler, which is applied in the fields of agricultural and forestry waste utilization and wood industry, can solve problems such as the decline of water resistance of gluing, and achieve the effects of improving gluing strength, reducing formaldehyde emission and abundant sources.
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Example Embodiment
[0017] Example one:
[0018] Take 100 grams of urea-formaldehyde resin (F / U=1:1.2), add 10 grams of peanut shell powder (500 mesh), 2 grams of carboxymethyl cellulose, stir evenly, and press plywood 1-1;
[0019] Take 100 grams of the same kind of urea-formaldehyde resin, add 12 grams of flour, mix well, and press plywood 1-2;
[0020] Sample material: poplar veneer;
[0021] Model specification: 400mm×400mm×2.1mm;
[0022] Water content: 12%;
[0023] Glue amount (including additives): 280g / m 2 ;
[0024] Pre-pressure: 8-10Kg / cm 2 ;
[0025] Preloading time: 30min;
[0026] Hot pressing temperature: 90-100℃;
[0027] Hot pressing pressure: 10-12Kg / cm 2 ;
[0028] Hot pressing time: 1min / mm.
[0029] Test the bonding strength and formaldehyde emission according to the method in GB / T17657-1999 "Test method for physical and chemical properties of wood-based panels and decorative wood-based panels", the results are as follows:
[0030]
[0031] The pre-compression performance evaluation index is t...
Example Embodiment
[0032] Embodiment two:
[0033] Take 100 grams of urea-formaldehyde resin (F / U=1:1.7), add 15 grams of eucalyptus bark powder (500 mesh), 2 grams of carboxymethyl cellulose, stir well, and press plywood 2-1;
[0034] Take 100 grams of the same kind of urea-formaldehyde resin, add 20 grams of flour, mix well, and press plywood 2-2;
[0035] Sample material: poplar veneer;
[0036] Model specification: 400mm×400mm×2.1mm;
[0037] Water content: 12%;
[0038] Glue amount (including additives): 280g / m 2 ;
[0039] Pre-pressure: 8-10Kg / cm 2 ;
[0040] Preloading time: 30min;
[0041] Hot pressing temperature: 90-100℃;
[0042] Hot pressing pressure: 10-12Kg / cm 2 ;
[0043] Hot pressing time: 1min / mm.
[0044] Test the bonding strength and formaldehyde emission according to the method in GB / T17657-1999 "Test method for physical and chemical properties of wood-based panels and decorative wood-based panels", the results are as follows:
[0045]
Example Embodiment
[0046] Embodiment three:
[0047] Take 100 grams of modified urea-formaldehyde resin (F / U=1:1.8, the amount of melamine is 8%), add 8 grams of camellia shell powder (500 mesh), 8 grams of pine bark powder, and 5 grams of modified starch, stir well, and press plywood 3 -1;
[0048] Take 100 grams of the same kind of urea-formaldehyde resin, add 20 grams of flour, mix well, and press plywood 3-2;
[0049] Sample material: poplar veneer;
[0050] Model specification: 400mm×400mm×2.1mm;
[0051] Water content: 12%;
[0052] Glue amount (including additives): 280g / m 2 ;
[0053] Pre-pressure: 8-10Kg / cm 2 ;
[0054] Preloading time: 30min;
[0055] Hot pressing temperature: 90-100℃;
[0056] Hot pressing pressure: 10-12Kg / cm 2 ;
[0057] Hot pressing time: 1min / mm.
[0058] Test the bonding strength and formaldehyde emission according to the method in GB / T17657-1999 "Test method for physical and chemical properties of wood-based panels and decorative wood-based panels", the results are as follows: ...
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