Surface coating agent for treating drilling solidified waste and process
A surface coating and waste technology, which is applied in the direction of pretreatment surface, device for coating liquid on the surface, special surface, etc., can solve the problems of poor environmental adaptability, etc., to enhance the curing bonding strength, improve the hydrophobicity, and ensure the strength Effect
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Embodiment 1
[0040] A surface coating agent for treating drilling solidified waste, comprising the following components in mass fraction: 30wt% acrylate polyether resin, 10wt% sodium silicate, 2wt% acetic acid, 25wt% vinyltrimethoxysilane , and the balance is water. The particle size of the coating agent is 120nm, and the viscosity at room temperature is 30mPa·s. Described acrylate polyether type resin contains the structural unit shown in formula (1)-formula (3), wherein, the mass ratio of the structural unit shown in formula (1), formula (2) and formula (3) is 3 :2:1, its weight average molecular weight is 40,000.
[0041]
[0042]
[0043] Among them, n=3.
[0044] Take 100g of drilling waste, solidify it with a curing agent containing cement-based cementitious material, and cure it under natural conditions for 14 days. After pre-treating the cured waste, brush one layer of coating agent, and after the coating agent dries to form a film, brush another layer in the same way. Af...
Embodiment 2
[0046] A surface coating agent for treating drilling solidified waste, comprising the following components in mass fraction: 30wt% acrylamide polyether type resin, 10wt% potassium silicate, 2wt% formic acid, 25wt% 3-glycidyl ether oxygen propyltriethoxysilane, and the balance is water. The particle size of the coating agent is 120nm, and the viscosity at room temperature is 30mPa·s. Described acrylamide polyether type resin contains the structural unit shown in formula (2), formula (3) and formula (4), wherein, the structural unit shown in formula (2) formula (3) and formula (4) The mass ratio is 3:2:5, and its weight average molecular weight is 50,000.
[0047]
[0048] Among them, n=2.
[0049] Take 100g of drilling waste, solidify it with a curing agent containing cement-based cementitious material, and cure it under natural conditions for 21 days. After pretreating and solidifying the waste, dip-coat one layer of coating agent, and after the coating agent dries to fo...
Embodiment 3
[0051] A kind of surface coating agent that is used for processing drilling solidification waste, comprises the component of following mass fraction: 30wt% terephthalate polyether type resin, 10wt% potassium silicate, 2wt% formic acid, 25wt% 3- Glycidyl etheroxypropyl triethoxysilane, the balance is water. The particle size of the coating agent is 120nm, and the viscosity at room temperature is 30mPa·s. The terephthalate polyether resin contains structural units represented by formula (5), and its weight average molecular weight is 80,000.
[0052]
[0053] Among them, m=15.
[0054] Take 100g of drilling waste, solidify it with a curing agent containing cement-based cementitious material, and cure it under natural conditions for 28 days. After the pretreatment of solidified waste, spray one layer of coating agent, and after the coating agent dries to form a film, spray another layer in the same way. After curing at a temperature of 40°C for 2 days, a surface-coated cure...
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