A water-resistant curing agent for water glass binder
A curing agent, water glass technology, applied in non-polymer adhesive additives, adhesives, inorganic adhesives and other directions, can solve the problems of poor water resistance, complicated preparation process of curing agent, difficult to obtain satisfactory results, etc. Quick and easy process, high water resistance effect
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Embodiment 1
[0030] A water-resistant water glass curing agent, each component includes: 3 parts of calcium oxide, 2 parts of boric acid, 5 parts of aluminum oxide, 20 parts of silicon dioxide, 15 parts of zinc oxide, the particle size of each of the above components is less than 10 μm. Mix the above components evenly to obtain a curing agent;
[0031] According to the mass ratio of curing agent and water glass 2.5:5, mix evenly; in the process of adding curing agent, add appropriate amount of water according to the situation, adjust the viscosity of the slurry so that it can be fully mixed uniformly; the obtained slurry The material is left at room temperature for 2 hours, and then heated at 60°C for 8 hours to obtain a cured product with good water resistance. Divide the curing agent into three equal parts and slowly add it to the water glass three times, and mix well. Above-mentioned water glass adopts sodium water glass.
[0032] The cured product obtained in Example 1, after being ...
Embodiment 2
[0034] A kind of water glass water-resistant curing agent, each component comprises by mass parts: 3 parts of calcium oxide, 5 parts of boric acid, 22 parts of aluminum oxide, 10 parts of silicon dioxide, 20 parts of zinc oxide, and the particle size of above-mentioned each component is all less than 10 μm. Mix the above components evenly to obtain a curing agent;
[0035] According to the mass ratio of curing agent and water glass 3:5, mix evenly; in the process of adding curing agent, add appropriate amount of water according to the situation, adjust the viscosity of the slurry so that it can be fully mixed uniformly; the obtained slurry The material is left at room temperature for 2 hours, and then heated at 60°C for 8 hours to obtain a cured product with good water resistance. Divide the curing agent into three equal parts and slowly add it to the water glass three times, and mix well. Above-mentioned water glass adopts sodium water glass.
[0036] The cured product obt...
Embodiment 3
[0038] A kind of water glass water-resistant curing agent, each component comprises by mass parts: 0.5 parts of calcium oxide, 5 parts of boric acid, 20 parts of aluminum oxide, 5 parts of silicon dioxide, 50 parts of zinc oxide, and the particle size of above-mentioned each component is all less than 10 μm. Mix the above components evenly to obtain a curing agent;
[0039] According to the mass ratio of curing agent and water glass 4:5, mix evenly; in the process of adding curing agent, add appropriate amount of water according to the situation, adjust the viscosity of the slurry so that it can be fully mixed uniformly; the obtained slurry The material is left at room temperature for 2 hours, and then heated at 60°C for 8 hours to obtain a cured product with good water resistance. Divide the curing agent into three equal parts and slowly add it to the water glass three times, and mix well. Above-mentioned water glass adopts potassium water glass.
[0040] The cured product...
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