Epoxy sealing agent for timber product and preparation method and application thereof
A technology of epoxy woodware and sealant, which is applied in the direction of epoxy resin coatings and coatings, can solve the problems of low hardness, paint film collapse, and affect the appearance, and achieve good storage stability, low VOC emissions, and excellent mechanical properties Effect
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[0044] Example 1
[0045] Preparation of component A: weigh a total of 100kg according to mass percentage: weigh 52kg of water-based epoxy emulsion, 18kg of epoxy-acrylic emulsion, 0.2kg of pH adjuster, 0.3kg of defoamer, 2kg of filler, 1.2kg of thickener, flow 0.3kg flat dose, 0.4kg wetting agent, 25.5kg water.
[0046] After weighing the raw materials according to the above mass components, proceed as follows:
[0047] A. Add the water-based epoxy emulsion, epoxy-acrylic emulsion, pH adjuster, thickener, and defoamer of component A into the dispersion tank, stir and disperse at high speed for 10 minutes until the viscosity of the emulsion rises significantly;
[0048] B. In step A, add fillers in sequence, stir and disperse for 10-15 minutes, until the fineness is ≤50μm;
[0049] C. In step B, add leveling agent, wetting agent, and water to make the viscosity of the sealing agent 155s-180s, stir and disperse at medium speed for 5 minutes until uniform, then filter and package.
[0050...
Example Embodiment
[0054] Example 2
[0055] Preparation of component A: weigh a total of 100kg according to mass percentage: weigh 56kg of water-based epoxy emulsion, 19kg of epoxy-acrylic emulsion, 0.2kg of pH regulator, 0.2kg of defoamer, 4kg of filler, 0.8kg of thickener, flow rate 0.3kg flat dose, 0.5kg wetting agent, 19kg water.
[0056] After weighing the raw materials according to the above mass components, proceed as follows:
[0057] A. Add the water-based epoxy emulsion, epoxy-acrylic emulsion, pH adjuster, thickener, and defoamer of component A into the dispersion tank, stir and disperse at high speed for 10 minutes until the viscosity of the emulsion rises significantly;
[0058] B. In step A, add fillers in sequence, stir and disperse for 10-15 minutes, until the fineness is ≤50μm;
[0059] C. In step B, add leveling agent, wetting agent, and water to make the viscosity of the sealing agent 155s-180s, stir and disperse at medium speed for 5 minutes until uniform, then filter and package.
[...
Example Embodiment
[0064] Example 3
[0065] Preparation of component A: weigh a total of 100kg according to mass percentage: weigh 49kg of water-based epoxy emulsion, 16kg of epoxy-acrylic emulsion, 0.2kg of pH regulator, 0.2kg of defoamer, 3kg of filler, 1.5kg of thickener, flow rate 0.3kg flat dose, 0.5kg wetting agent, 29.3kg water.
[0066] After weighing the raw materials according to the above mass components, proceed as follows:
[0067] A. Add the water-based epoxy emulsion, epoxy-acrylic emulsion, pH adjuster, thickener, and defoamer of component A into the dispersion tank, stir and disperse at high speed for 10 minutes until the viscosity of the emulsion rises significantly;
[0068] B. In step A, add fillers in sequence, stir and disperse for 10-15 minutes, until the fineness is ≤50μm;
[0069] C. In step B, add leveling agent, wetting agent, and water to make the viscosity of the sealing agent 155s-180s, stir and disperse at medium speed for 5 minutes until uniform, then filter and package. ...
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