CN110921729A - Water treatment agent containing isothiazolinone and preparation method thereof - Google Patents
Water treatment agent containing isothiazolinone and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/12—Prevention of foaming
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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Abstract
The invention discloses a water treatment agent containing isothiazolinone and a preparation method thereof, wherein the water treatment agent comprises the following raw materials in parts by weight: 15-20 parts of isothiazolinone, 5-7 parts of dispersing agent, 3-5 parts of defoaming agent, 3-5 parts of active diluent, 2-10 parts of pH regulator, 5-20 parts of titanium dioxide, 5-8 parts of silicon dioxide, 1-3 parts of surfactant, 5-8 parts of eugenol, 30-60 parts of polyferric chloride, 5-8 parts of sodium silicate, 3-8 parts of citric acid, 20-30 parts of active vermiculite powder, 20-30 parts of lignin, 5-8 parts of tannin, 5-8 parts of potassium persulfate, 90-300 parts of deionized water, 5-8 parts of polyepoxysuccinic acid, 5-8 parts of benzotriazole and 1-3 parts of dialkyl glycidyl phosphate. The invention has reasonable design, reasonable components and good sewage treatment effect, and is suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of water treatment agents, in particular to a water treatment agent containing isothiazolinone and a preparation method thereof.
Background
The water treatment agent is a chemical added in the water treatment process for removing most harmful substances (such as corrosives, metal ions, dirt, microorganisms and the like) in water to obtain domestic or industrial water meeting the requirements. The water treatment agent is an important class in fine chemical products and has strong specificity. Different water treatment agents are required for different purposes and treatment targets. The water treating agent is a generic name of chemical agents for water treatment, and is widely used in industrial departments of petroleum, chemical industry, metallurgy, traffic, light industry, textile and the like. The water treatment agent comprises a corrosion inhibitor, a scale inhibitor, a bactericide, a flocculating agent, a purifying agent, a cleaning agent, a prefilming agent and the like. In practical application, a water treatment agent with a compound formula is often used, or various water treatment agents are comprehensively applied. Therefore, attention is paid to the fact that the synergistic effect (synergistic effect generated when several medicaments coexist) is fully utilized to realize the synergy, and the components are not properly compounded to generate the antagonistic effect so as to reduce or lose the effect. In addition, most water treatment systems are open systems, and have a certain discharge amount, and the influence of various water treatment agents on the environment needs to be considered when the system is used.
The existing water treatment agent has a not ideal bactericidal effect, the previous effect of a common water treatment agent can also be reduced greatly, and the water treatment agent needs to be replaced at the moment after being used for one day or several days, so that the resource waste is caused, and the invention provides the water treatment agent containing the isothiazolinone and the preparation method thereof.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a water treatment agent containing isothiazolinone and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water treatment agent containing isothiazolinone comprises the following raw materials in parts by weight: 15-20 parts of isothiazolinone, 5-7 parts of dispersing agent, 3-5 parts of defoaming agent, 3-5 parts of active diluent, 2-10 parts of pH regulator, 5-20 parts of titanium dioxide, 5-8 parts of silicon dioxide, 1-3 parts of surfactant, 5-8 parts of eugenol, 30-60 parts of polyferric chloride, 5-8 parts of sodium silicate, 3-8 parts of citric acid, 20-30 parts of active vermiculite powder, 20-30 parts of lignin, 5-8 parts of tannin, 5-8 parts of potassium persulfate, 90-300 parts of deionized water, 5-8 parts of polyepoxysuccinic acid, 5-8 parts of benzotriazole and 1-3 parts of dialkyl glycidyl phosphate.
Preferably, the feed comprises the following raw materials in parts by weight: 16-19 parts of isothiazolinone, 5.5-6.5 parts of dispersing agent, 3.5-4.5 parts of defoaming agent, 3.5-4.5 parts of active diluent, 3-9 parts of pH regulator, 6-18 parts of titanium dioxide, 6-7 parts of silicon dioxide, 1.5-2.5 parts of surfactant, 5.5-7.5 parts of eugenol, 40-50 parts of polymeric ferric chloride, 5.5-7.5 parts of sodium silicate, 4-7 parts of citric acid, 23-27 parts of active vermiculite powder, 23-27 parts of lignin, 5.5-7.5 parts of tannin, 5.5-7.5 parts of potassium persulfate, 110-280 parts of deionized water, 5.5-7.5 parts of polyepoxysuccinic acid, 5.5-7.5 parts of benzotriazole and 1.5-2.5 parts of dialkyl glycidyl phosphate.
Preferably, the feed comprises the following raw materials in parts by weight: 17.5 parts of isothiazolinone, 6 parts of dispersant, 4 parts of defoamer, 4 parts of active diluent, 6 parts of pH regulator, 12.5 parts of titanium dioxide, 6.5 parts of silicon dioxide, 2 parts of surfactant, 6.5 parts of eugenol, 45 parts of polyferric chloride, 6.5 parts of sodium silicate, 5.5 parts of citric acid, 25 parts of active vermiculite powder, 25 parts of lignin, 6.5 parts of tannin, 6.5 parts of potassium persulfate, 200 parts of deionized water, 6.5 parts of polyepoxysuccinic acid, 6.5 parts of benzotriazole and 2 parts of dialkyl glycidyl phosphate.
Preferably, the dispersant is one of calcium lignosulfonate, sodium lignosulfonate, polyvinyl alcohol and sodium tripolyphosphate.
Preferably, the antifoaming agent is SAG-630.
Preferably, the surfactant is one of fatty acid polyoxyethylene ether sodium sulfate and fatty alcohol polyoxyethylene ether sulfosuccinic acid monoester disodium.
Preferably, the reactive diluent is a cycloaliphatic epoxy reactive diluent.
A process for preparing the water treating agent containing isothiazolinone includes such steps as preparing the water treating agent,
s1, putting the dispersing agent, the defoaming agent, the active diluent, the pH regulator, the titanium dioxide, the silicon dioxide, the surfactant, the eugenol, the polyferric chloride, the sodium silicate, the citric acid, the active vermiculite powder, the lignin, the deionized water, the polyepoxysuccinic acid, the benzotriazole and the dialkyl glycidyl phosphate into a reaction kettle for stirring, setting the temperature to be 40-60 ℃, and mixing and stirring at the rotating speed of 120-160 r/min for 20-25 min to obtain a viscous material A;
s2, adding corresponding parts by weight of isothiazolinone and potassium persulfate into the reaction kettle in the S1, setting the temperature to be 60-80 ℃, mixing and stirring at the rotating speed of 180-220 r/min for 60-80 min, then adding corresponding parts by weight of tannin, adjusting the rotating speed to be 300-360 r/min, setting the temperature to be 40-60 ℃, and setting the running time to be 30-35 min to obtain a mixed material B;
s3, putting the mixed material B into an extruder to obtain a strip material with the diameter of 0.5-0.8 mm, and then cutting the strip material into particles with the length of 2.2-4.2 mm through a granulator, wherein the particles are the water treatment agent.
Preferably, in S2, adding corresponding parts by weight of isothiazolinone and potassium persulfate into the reaction kettle in S1, setting the temperature at 70 ℃, mixing and stirring at the rotating speed of 200r/min for 70min, then adding corresponding parts by weight of tannin, adjusting the rotating speed to 330r/min, setting the temperature at 50 ℃, and setting the running time to 32.5min to obtain the mixed material B.
Preferably, in S3, the mixed material B is put into an extruder to obtain a strip material with a diameter of 0.65mm, and then the strip material is cut into granules with a length of 3.2mm by a granulator, wherein the granules are the water treatment agent.
The invention provides a water treatment agent containing isothiazolinone, which mainly comprises 5-chloro-2-methyl-4-isothiazolinone-3-ketone (CIT) and 2-methyl-4-isothiazolinone-3-ketone (MIT). Isothiazolinones are biocidal by breaking bonds between bacterial and algal proteins. The isothiazolinone can inhibit the growth of microbe rapidly and irreversibly after contacting with the microbe, so it has very strong inhibiting and killing effects on common bacteria, fungi, algae, etc., and can be used in the treating agent to treat sewage better, and the invention also provides a preparation method of the treating agent containing isothiazolinone, the treating agent is mixed and stirred for 60min at a rotating speed of 180r/min, then tannin with corresponding weight is added, the rotating speed is adjusted to 300r/min, the temperature is set to 40 ℃, the running time is set to 30min, and the mixed material B is obtained.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
The invention provides a water treatment agent containing isothiazolinone, which comprises the following raw materials in parts by weight: 17.5 parts of isothiazolinone, 6 parts of dispersant, 4 parts of defoamer, 4 parts of active diluent, 6 parts of pH regulator, 12.5 parts of titanium dioxide, 6.5 parts of silicon dioxide, 2 parts of surfactant, 6.5 parts of eugenol, 45 parts of polyferric chloride, 6.5 parts of sodium silicate, 5.5 parts of citric acid, 25 parts of active vermiculite powder, 25 parts of lignin, 6.5 parts of tannin, 6.5 parts of potassium persulfate, 200 parts of deionized water, 6.5 parts of polyepoxysuccinic acid, 6.5 parts of benzotriazole and 2 parts of dialkyl glycidyl phosphate.
The invention provides a preparation method of a water treatment agent containing isothiazolinone, which comprises the following steps,
s1, putting the dispersing agent, the defoaming agent, the active diluent, the pH regulator, the titanium dioxide, the silicon dioxide, the surfactant, the eugenol, the polyferric chloride, the sodium silicate, the citric acid, the active vermiculite powder, the lignin, the deionized water, the polyepoxysuccinic acid, the benzotriazole and the dialkyl glycidyl phosphate into a reaction kettle for stirring, setting the temperature to be 40 ℃, and mixing and stirring at the rotating speed of 120r/min for 20min to obtain a viscous material A;
s2, adding corresponding parts by weight of isothiazolinone and potassium persulfate into the reaction kettle in the S1, setting the temperature to be 60 ℃, mixing and stirring at the rotating speed of 180r/min for 60min, then adding corresponding parts by weight of tannin, adjusting the rotating speed to be 300r/min, setting the temperature to be 40 ℃, and setting the running time to be 30min to obtain a mixed material B;
s3, putting the mixed material B into an extruder to obtain a strip material with the diameter of 0.5mm, and then cutting the strip material into granules with the length of 2.2mm through a granulator, wherein the granules are the water treatment agent.
Example two
The invention provides a water treatment agent containing isothiazolinone, which comprises the following raw materials in parts by weight: 17.5 parts of isothiazolinone, 6 parts of dispersant, 4 parts of defoamer, 4 parts of active diluent, 6 parts of pH regulator, 12.5 parts of titanium dioxide, 6.5 parts of silicon dioxide, 2 parts of surfactant, 6.5 parts of eugenol, 45 parts of polyferric chloride, 6.5 parts of sodium silicate, 5.5 parts of citric acid, 25 parts of active vermiculite powder, 25 parts of lignin, 6.5 parts of tannin, 6.5 parts of potassium persulfate, 200 parts of deionized water, 6.5 parts of polyepoxysuccinic acid, 6.5 parts of benzotriazole and 2 parts of dialkyl glycidyl phosphate.
The invention provides a preparation method of a water treatment agent containing isothiazolinone, which comprises the following steps,
s1, putting the dispersing agent, the defoaming agent, the active diluent, the pH regulator, the titanium dioxide, the silicon dioxide, the surfactant, the eugenol, the polyferric chloride, the sodium silicate, the citric acid, the active vermiculite powder, the lignin, the deionized water, the polyepoxysuccinic acid, the benzotriazole and the dialkyl glycidyl phosphate into a reaction kettle for stirring, setting the temperature at 45 ℃, and mixing and stirring at the rotating speed of 130r/min for 21min to obtain a viscous material A;
s2, adding corresponding parts by weight of isothiazolinone and potassium persulfate into the reaction kettle in the S1, setting the temperature to 65 ℃, mixing and stirring at the rotating speed of 190r/min for 65min, then adding corresponding parts by weight of tannin, adjusting the rotating speed to 320r/min, setting the temperature to 45 ℃, and setting the running time to 30-35 min to obtain a mixed material B;
s3, putting the mixed material B into an extruder to obtain a strip material with the diameter of 0.55mm, and then cutting the strip material into granules with the length of 2.4mm through a granulator, wherein the granules are the water treatment agent.
EXAMPLE III
The invention provides a water treatment agent containing isothiazolinone, which comprises the following raw materials in parts by weight: 17.5 parts of isothiazolinone, 6 parts of dispersant, 4 parts of defoamer, 4 parts of active diluent, 6 parts of pH regulator, 12.5 parts of titanium dioxide, 6.5 parts of silicon dioxide, 2 parts of surfactant, 6.5 parts of eugenol, 45 parts of polyferric chloride, 6.5 parts of sodium silicate, 5.5 parts of citric acid, 25 parts of active vermiculite powder, 25 parts of lignin, 6.5 parts of tannin, 6.5 parts of potassium persulfate, 200 parts of deionized water, 6.5 parts of polyepoxysuccinic acid, 6.5 parts of benzotriazole and 2 parts of dialkyl glycidyl phosphate.
The invention provides a preparation method of a water treatment agent containing isothiazolinone, which comprises the following steps,
s1, putting the dispersing agent, the defoaming agent, the active diluent, the pH regulator, the titanium dioxide, the silicon dioxide, the surfactant, the eugenol, the polyferric chloride, the sodium silicate, the citric acid, the active vermiculite powder, the lignin, the deionized water, the polyepoxysuccinic acid, the benzotriazole and the dialkyl glycidyl phosphate into a reaction kettle for stirring, setting the temperature at 50 ℃, and mixing and stirring at the rotating speed of 140r/min for 22.5min to obtain a viscous material A;
s2, adding corresponding parts by weight of isothiazolinone and potassium persulfate into the reaction kettle in the S1, setting the temperature to be 70 ℃, mixing and stirring for 70min at the rotating speed of 200r/min, then adding corresponding parts by weight of tannin, adjusting the rotating speed to be 330r/min, setting the temperature to be 50 ℃, and setting the running time to be 32.5min to obtain a mixed material B;
s3, putting the mixed material B into an extruder to obtain a strip material with the diameter of 0.65mm, and then cutting the strip material into particles with the length of 3.2mm through a granulator, wherein the particles are the water treatment agent.
Example four
The invention provides a water treatment agent containing isothiazolinone, which comprises the following raw materials in parts by weight: 17.5 parts of isothiazolinone, 6 parts of dispersant, 4 parts of defoamer, 4 parts of active diluent, 6 parts of pH regulator, 12.5 parts of titanium dioxide, 6.5 parts of silicon dioxide, 2 parts of surfactant, 6.5 parts of eugenol, 45 parts of polyferric chloride, 6.5 parts of sodium silicate, 5.5 parts of citric acid, 25 parts of active vermiculite powder, 25 parts of lignin, 6.5 parts of tannin, 6.5 parts of potassium persulfate, 200 parts of deionized water, 6.5 parts of polyepoxysuccinic acid, 6.5 parts of benzotriazole and 2 parts of dialkyl glycidyl phosphate.
The invention provides a preparation method of a water treatment agent containing isothiazolinone, which comprises the following steps,
s1, putting the dispersing agent, the defoaming agent, the active diluent, the pH regulator, the titanium dioxide, the silicon dioxide, the surfactant, the eugenol, the polyferric chloride, the sodium silicate, the citric acid, the active vermiculite powder, the lignin, the deionized water, the polyepoxysuccinic acid, the benzotriazole and the dialkyl glycidyl phosphate into a reaction kettle for stirring, setting the temperature to be 55 ℃, and mixing and stirring for 24min at the rotating speed of 150r/min to obtain a viscous material A;
s2, adding corresponding parts by weight of isothiazolinone and potassium persulfate into the reaction kettle in the S1, setting the temperature to be 75 ℃, mixing and stirring for 75min at the rotating speed of 210r/min, then adding corresponding parts by weight of tannin, adjusting the rotating speed to be 350r/min, setting the temperature to be 55 ℃, and setting the running time to be 34min to obtain a mixed material B;
s3, putting the mixed material B into an extruder to obtain a strip material with the diameter of 0.7mm, and then cutting the strip material into particles with the length of 3.8mm through a granulator, wherein the particles are the water treatment agent.
EXAMPLE five
The invention provides a water treatment agent containing isothiazolinone, which comprises the following raw materials in parts by weight: 17.5 parts of isothiazolinone, 6 parts of dispersant, 4 parts of defoamer, 4 parts of active diluent, 6 parts of pH regulator, 12.5 parts of titanium dioxide, 6.5 parts of silicon dioxide, 2 parts of surfactant, 6.5 parts of eugenol, 45 parts of polyferric chloride, 6.5 parts of sodium silicate, 5.5 parts of citric acid, 25 parts of active vermiculite powder, 25 parts of lignin, 6.5 parts of tannin, 6.5 parts of potassium persulfate, 200 parts of deionized water, 6.5 parts of polyepoxysuccinic acid, 6.5 parts of benzotriazole and 2 parts of dialkyl glycidyl phosphate.
The invention provides a preparation method of a water treatment agent containing isothiazolinone, which comprises the following steps,
s1, putting the dispersing agent, the defoaming agent, the active diluent, the pH regulator, the titanium dioxide, the silicon dioxide, the surfactant, the eugenol, the polyferric chloride, the sodium silicate, the citric acid, the active vermiculite powder, the lignin, the deionized water, the polyepoxysuccinic acid, the benzotriazole and the dialkyl glycidyl phosphate into a reaction kettle for stirring, setting the temperature to be 60 ℃, and mixing and stirring at the rotating speed of 160r/min for 25min to obtain a viscous material A;
s2, adding corresponding parts by weight of isothiazolinone and potassium persulfate into the reaction kettle in the S1, setting the temperature to be 80 ℃, mixing and stirring for 80min at the rotating speed of 220r/min, then adding corresponding parts by weight of tannin, adjusting the rotating speed to be 360r/min, setting the temperature to be 60 ℃, and setting the running time to be 30-35 min to obtain a mixed material B;
s3, putting the mixed material B into an extruder to obtain a strip material with the diameter of 0.8mm, and then cutting the strip material into particles with the length of 4.2mm through a granulator, wherein the particles are the water treatment agent.
The invention provides a water treatment agent containing isothiazolinone, which mainly comprises 5-chloro-2-methyl-4-isothiazolinone-3-ketone (CIT) and 2-methyl-4-isothiazolinone-3-ketone (MIT). Isothiazolinones are biocidal by breaking bonds between bacterial and algal proteins. The isothiazolinone can inhibit the growth of microbe rapidly and irreversibly after contacting with the microbe, so it has very strong inhibiting and killing effects on common bacteria, fungi, algae, etc., and can be used in the treating agent to treat sewage better, and the invention also provides a preparation method of the treating agent containing isothiazolinone, the treating agent is mixed and stirred for 60min at a rotating speed of 180r/min, then tannin with corresponding weight is added, the rotating speed is adjusted to 300r/min, the temperature is set to 40 ℃, the running time is set to 30min, and the mixed material B is obtained.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A water treatment agent containing isothiazolinone is characterized by comprising the following raw materials in parts by weight: 15-20 parts of isothiazolinone, 5-7 parts of dispersing agent, 3-5 parts of defoaming agent, 3-5 parts of active diluent, 2-10 parts of pH regulator, 5-20 parts of titanium dioxide, 5-8 parts of silicon dioxide, 1-3 parts of surfactant, 5-8 parts of eugenol, 30-60 parts of polyferric chloride, 5-8 parts of sodium silicate, 3-8 parts of citric acid, 20-30 parts of active vermiculite powder, 20-30 parts of lignin, 5-8 parts of tannin, 5-8 parts of potassium persulfate, 90-300 parts of deionized water, 5-8 parts of polyepoxysuccinic acid, 5-8 parts of benzotriazole and 1-3 parts of dialkyl glycidyl phosphate.
2. The water treatment agent containing isothiazolinone according to claim 1, comprising the following raw materials by weight: 16-19 parts of isothiazolinone, 5.5-6.5 parts of dispersing agent, 3.5-4.5 parts of defoaming agent, 3.5-4.5 parts of active diluent, 3-9 parts of pH regulator, 6-18 parts of titanium dioxide, 6-7 parts of silicon dioxide, 1.5-2.5 parts of surfactant, 5.5-7.5 parts of eugenol, 40-50 parts of polymeric ferric chloride, 5.5-7.5 parts of sodium silicate, 4-7 parts of citric acid, 23-27 parts of active vermiculite powder, 23-27 parts of lignin, 5.5-7.5 parts of tannin, 5.5-7.5 parts of potassium persulfate, 110-280 parts of deionized water, 5.5-7.5 parts of polyepoxysuccinic acid, 5.5-7.5 parts of benzotriazole and 1.5-2.5 parts of dialkyl glycidyl phosphate.
3. The water treatment agent containing isothiazolinone according to claim 1, comprising the following raw materials by weight: 17.5 parts of isothiazolinone, 6 parts of dispersant, 4 parts of defoamer, 4 parts of active diluent, 6 parts of pH regulator, 12.5 parts of titanium dioxide, 6.5 parts of silicon dioxide, 2 parts of surfactant, 6.5 parts of eugenol, 45 parts of polyferric chloride, 6.5 parts of sodium silicate, 5.5 parts of citric acid, 25 parts of active vermiculite powder, 25 parts of lignin, 6.5 parts of tannin, 6.5 parts of potassium persulfate, 200 parts of deionized water, 6.5 parts of polyepoxysuccinic acid, 6.5 parts of benzotriazole and 2 parts of dialkyl glycidyl phosphate.
4. The water treatment agent containing isothiazolinone according to claim 1, wherein the dispersant is one of calcium lignosulfonate, sodium lignosulfonate, polyvinyl alcohol, sodium tripolyphosphate.
5. The water treatment agent containing isothiazolinone according to claim 1, wherein the defoaming agent is SAG-630.
6. The water treatment agent according to claim 1, wherein the surfactant is one of sodium fatty acid polyoxyethylene ether sulfate and disodium fatty alcohol polyoxyethylene ether sulfosuccinate monoester.
7. The water treatment agent according to claim 1, wherein the reactive diluent is an alicyclic epoxy reactive diluent.
8. The method for preparing a water treatment agent containing isothiazolinone according to any one of claims 1 to 7, comprising the steps of,
s1, putting the dispersing agent, the defoaming agent, the active diluent, the pH regulator, the titanium dioxide, the silicon dioxide, the surfactant, the eugenol, the polyferric chloride, the sodium silicate, the citric acid, the active vermiculite powder, the lignin, the deionized water, the polyepoxysuccinic acid, the benzotriazole and the dialkyl glycidyl phosphate into a reaction kettle for stirring, setting the temperature to be 40-60 ℃, and mixing and stirring at the rotating speed of 120-160 r/min for 20-25 min to obtain a viscous material A;
s2, adding corresponding parts by weight of isothiazolinone and potassium persulfate into the reaction kettle in the S1, setting the temperature to be 60-80 ℃, mixing and stirring at the rotating speed of 180-220 r/min for 60-80 min, then adding corresponding parts by weight of tannin, adjusting the rotating speed to be 300-360 r/min, setting the temperature to be 40-60 ℃, and setting the running time to be 30-35 min to obtain a mixed material B;
s3, putting the mixed material B into an extruder to obtain a strip material with the diameter of 0.5-0.8 mm, and then cutting the strip material into particles with the length of 2.2-4.2 mm through a granulator, wherein the particles are the water treatment agent.
9. The method of claim 8, wherein in S2, isothiazolinone and potassium persulfate are added in corresponding weight portions in a reaction kettle of S1, the temperature is set to 70 ℃, the mixture is mixed and stirred at 200r/min for 70min, and then tannin is added in corresponding weight portions, the rotation speed is adjusted to 330r/min, the temperature is set to 50 ℃, and the operation time is set to 32.5min, thereby obtaining the mixed material B.
10. The method of claim 8, wherein the mixture B is fed into an extruder to obtain a strip having a diameter of 0.65mm in S3, and the strip is cut into 3.2 mm-long granules by a pelletizer, and the granules are the water treatment agent.
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