Dust suppressant for constructional engineering and preparation method thereof
A technology of construction engineering and dust suppressant, which is applied in the field of atmospheric dust pollution control, can solve the problems of large corrosion of construction equipment, low water retention capacity, and high cost of dust suppressant, and achieve the effects of reducing spraying amount, saving cost, and shortening curing time
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Embodiment 1
[0025] Embodiment 1: Preparation of construction dust suppressant composition of the present invention
[0026] 1) At normal temperature, 100 parts by weight of hydroxymethylcellulose, 1 part by weight of hydroxypropylmethylcellulose, and 2 parts by weight of polyvinyl alcohol are stirred at a high speed (stirring speed is 1500r / min) to achieve a uniform mixing state;
[0027] 2) Heat 2 parts by weight of water to 40°C, then add 0.1 parts by weight of polyacrylamide, 0.05 parts by weight of rare earth and 0.01 parts by weight of sodium benzenesulfonate in sequence, and stir and mix slowly (stirring speed is 150r / min) until the mixture is uniform;
[0028] 3) freezing the solution obtained in step 2) into a solid state at -10°C, and then sublimating the water in it into a gaseous state without going through a liquid state in a vacuum dryer with a pressure of 8 Pa to obtain a dry powder;
[0029] 4) Mix the mixture obtained in step 1) with the dry powder obtained in step 3), the...
Embodiment 2
[0030] Embodiment 2: Preparation of construction dust suppressant composition of the present invention
[0031] 1) At room temperature, 100 parts by weight of hydroxymethylcellulose, 3 parts by weight of hydroxypropylmethylcellulose, and 2 parts by weight of polyvinyl alcohol are stirred at a high speed (stirring speed is 1500r / min) to achieve a uniform mixing state;
[0032] 2) Heat 4 parts by weight of water to 50°C, then add 0.3 parts by weight of polyacrylamide, 0.07 parts by weight of rare earth and 0.02 parts by weight of sodium benzenesulfonate in sequence, and stir and mix slowly (stirring speed is 150r / min) until the mixture is uniform;
[0033] 3) freezing the solution obtained in step 2) into a solid state at -10°C, and then sublimating the water in it into a gaseous state without going through a liquid state in a vacuum dryer with a pressure of 8 Pa to obtain a dry powder;
[0034] 4) Mix the mixture obtained in step 1) with the dry powder obtained in step 3), then...
Embodiment 3
[0035] Embodiment 3: Preparation of construction dust suppressant composition of the present invention
[0036] 1) At normal temperature, 100 parts by weight of hydroxymethylcellulose, 3 parts by weight of hydroxypropylmethylcellulose, and 3 parts by weight of polyvinyl alcohol are stirred at a high speed (stirring speed is 1500r / min) to achieve a uniform mixing state;
[0037] 2) Heat 5 parts by weight of water to 60°C, then add 0.5 parts by weight of polyacrylamide, 0.1 parts by weight of rare earth and 0.04 parts by weight of sodium benzenesulfonate in sequence, and stir and mix slowly (stirring speed is 150r / min) until the mixture is uniform;
[0038] 3) freezing the solution obtained in step 2) into a solid state at -10°C, and then sublimating the water in it into a gaseous state without going through a liquid state in a vacuum dryer with a pressure of 8 Pa to obtain a dry powder;
[0039] 4) Mix the mixture obtained in step 1) with the dry powder obtained in step 3), the...
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