CN112136820A - Reinforced metal working fluid anti-corrosion bactericide and preparation method and application thereof - Google Patents
Reinforced metal working fluid anti-corrosion bactericide and preparation method and application thereof Download PDFInfo
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- CN112136820A CN112136820A CN202010996749.1A CN202010996749A CN112136820A CN 112136820 A CN112136820 A CN 112136820A CN 202010996749 A CN202010996749 A CN 202010996749A CN 112136820 A CN112136820 A CN 112136820A
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- parts
- working fluid
- metal working
- bactericide
- antiseptic
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Classifications
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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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
-
- 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
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/08—Oxygen or sulfur directly attached to an aromatic ring system
-
- 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
-
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
-
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
- A01N47/48—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —S—C≡N groups
Abstract
The invention relates to a reinforced metal working fluid anti-corrosion bactericide and a preparation method thereof, wherein the bactericide comprises the following substances in parts by weight: 20-60 parts of hydroxyethyl s-triazine, 2-20 parts of a synergistic antiseptic bactericide, 1-15 parts of a pH regulator and 25-200 parts of softened water; the synergistic antiseptic bactericide is one or more of iodopropynyl butylcarbamate, 1,2 benzisothiazolinone, 2-n-octyl-4-isothiazolinone, p-chloro-m-xylenol and 2-thiocyanomethyl thio-benzothiazole; the preparation method comprises the steps of putting hydroxyethyl s-triazine into a reaction kettle, and adding a pH regulator to regulate the pH to 8-14; and continuously adding the synergistic antiseptic bactericide, mixing, and adding softened water to form the reinforced metal working fluid antiseptic bactericide. The invention can broaden the bacteriostasis spectrum of the metal processing liquid, has strong bactericidal and bacteriostatic effects, effectively prevents the corrosion of bacteria and fungi, prolongs the service life and saves the storage and maintenance cost.
Description
Technical Field
The invention relates to the technical field of chemical preparations, in particular to a reinforced metal working fluid anti-corrosion bactericide and a preparation method thereof.
Background
Metal working fluids (Metalworking fluids) are mainly liquids for metal working, mainly play a role in lubrication and cooling, and also have a role in rust prevention and cleaning. General metal working fluids include cutting fluids, cutting oils, emulsions, stamping oils, quenching oils, quenchers, high temperature oils, extreme pressure cutting fluids, grinding fluids, rust preventive oils, cleaning agents, blackening agents, drawing oils, thickeners, and the like. When the metal working fluid is used, the metal working fluid is often affected by the corrosion of bacteria and fungi, the service life of the metal working fluid is shortened, and the cost of storage and maintenance is increased. Therefore, other substances need to be added into the metal working fluid, so that the metal working fluid has good corrosion prevention and bacteriostasis performance, and the s-triazine bactericide is a corrosion prevention and sterilization component with excellent performance and high cost performance and is widely applied to a metal working fluid system; however, since the sym-triazine bactericide has a single bactericidal and bacteriostatic spectrum, it is slightly insufficient in long-term use.
Disclosure of Invention
Aiming at the problems of the metal working fluid bactericide, the invention aims to disclose a reinforced metal working fluid antiseptic bactericide and a preparation method thereof, which can widen the bacteriostatic spectrum range of the metal working fluid, have strong bactericidal and bacteriostatic effects, effectively prevent the corrosion of bacteria and fungi, prolong the service life and save the keeping and maintenance cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
a reinforced metal working fluid anti-corrosion bactericide comprises the following substances in parts by weight: 20-60 parts of hydroxyethyl s-triazine, 2-20 parts of a synergistic antiseptic bactericide, 1-15 parts of a pH regulator and 25-200 parts of softened water.
Further, 23-41 parts of hydroxyethyl s-triazine, 6-15 parts of a synergistic antiseptic bactericide, 3-11 parts of a pH regulator and 35-150 parts of softened water.
Furthermore, 32 parts of hydroxyethyl s-triazine, 10 parts of a synergistic antiseptic bactericide, 8 parts of a pH regulator and 110 parts of softened water.
Furthermore, the synergistic antiseptic bactericide is one or more of iodopropynyl butylcarbamate, 1,2 benzisothiazolinone, 2-n-octyl-4-isothiazolinone, parachlorometaxylenol and 2-thiocyanomethyl thio-benzothiazole.
A preparation method of a reinforced metal working fluid antiseptic bactericide comprises the following steps:
1) putting hydroxyethyl s-triazine into a reaction kettle, and adding a pH regulator to regulate the pH value under the stirring state;
2) and (3) continuously adding the synergistic antiseptic bactericide into the step 1), stirring, dissolving and mixing, and adding softened water to form the reinforced metal working fluid antiseptic bactericide.
Further, the pH value in the step 1) is adjusted to 8-14.
An application of a reinforced metal working fluid antiseptic bactericide in widening the antibacterial spectrum range of metal working fluid.
An application of a reinforced metal working fluid antiseptic bactericide in prolonging the storage period of the metal working fluid.
The invention has the beneficial effects that the reinforced metal working fluid anti-corrosion bactericide comprises the following substances in parts by weight: 20-60 parts of hydroxyethyl s-triazine, 2-20 parts of a synergistic antiseptic bactericide, 1-15 parts of a pH regulator and 25-200 parts of softened water. The synergistic antiseptic bactericide is one or more of iodopropynyl butylcarbamate, 1, 2-benzisothiazolinone, 2-n-octyl-4-isothiazolinone, p-chloro-m-xylenol and 2-thiocyanomethyl-thiobenzothiazole. By compounding and synergistic action of hydroxyethyl s-triazine and the synergistic antiseptic bactericide, the antibacterial spectrum range is widened, the antiseptic bactericide has strong antiseptic, bactericidal and bacteriostatic effects, the bacteriostasis rate to bacteria and fungi is more than 99.99%, the corrosion of the bacteria and the fungi is effectively prevented, the storage period is prolonged, the service life is prolonged, and the storage and maintenance cost is saved.
Detailed Description
The reinforced metal working fluid antiseptic and bactericidal agent provided by the invention will be described in detail with reference to the embodiment.
Example 1
The reinforced metal working fluid antiseptic bactericide provided by the embodiment comprises the following substances in parts by weight: 20 parts of hydroxyethyl s-triazine, 20 parts of a synergistic antiseptic bactericide, 1 part of a pH regulator and 25 parts of softened water.
In this embodiment, the synergistic antiseptic is iodopropynyl butylcarbamate, 1,2 benzisothiazolinone, 2-n-octyl-4-isothiazolinone, parachlorometaxylenol, and 2-thiocyanomethylthio benzothiazole.
A preparation method of a reinforced metal working fluid antiseptic bactericide comprises the following steps:
1) putting hydroxyethyl s-triazine into a reaction kettle, and adding a pH regulator to regulate the pH to 10 under the stirring state;
2) and (3) continuously adding the synergistic antiseptic bactericide into the step 1), stirring, dissolving and mixing, and adding softened water to form the reinforced metal working fluid antiseptic bactericide.
Example 2
The reinforced metal working fluid antiseptic bactericide provided by the embodiment comprises the following substances in parts by weight: 60 parts of hydroxyethyl s-triazine, 5 parts of synergistic antiseptic bactericide, 15 parts of pH regulator and 200 parts of softened water.
The synergistic antiseptic bactericide is 2-n-octyl-4-isothiazolinone, parachlorometaxylenol and 2-thiocyanomethyl-thiobenzothiazole.
A preparation method of a reinforced metal working fluid antiseptic bactericide comprises the following steps:
1) putting hydroxyethyl s-triazine into a reaction kettle, and adding a pH regulator to regulate the pH to 12 under the stirring state;
2) and (3) continuously adding the synergistic antiseptic bactericide into the step 1), stirring, dissolving and mixing, and adding softened water to form the reinforced metal working fluid antiseptic bactericide.
Example 3
The reinforced metal working fluid antiseptic bactericide provided by the embodiment comprises the following substances in parts by weight: 23 parts of hydroxyethyl s-triazine, 8 parts of synergistic antiseptic bactericide, 3 parts of pH regulator and 80 parts of softened water.
The synergistic antiseptic is 1, 2-benzisothiazolinone.
A preparation method of a reinforced metal working fluid antiseptic bactericide comprises the following steps:
1) putting hydroxyethyl s-triazine into a reaction kettle, and adding a pH regulator to regulate the pH to 12 under the stirring state;
2) and (3) continuously adding the synergistic antiseptic bactericide into the step 1), stirring, dissolving and mixing, and adding softened water to form the reinforced metal working fluid antiseptic bactericide.
Example 4
The reinforced metal working fluid antiseptic bactericide provided by the embodiment comprises the following substances in parts by weight: 41 parts of hydroxyethyl s-triazine, 15 parts of synergistic antiseptic bactericide, 11 parts of pH regulator and 150 parts of softened water.
The synergistic antiseptic is iodopropynyl butylcarbamate, 1,2 benzisothiazolinone, 2-n-octyl-4-isothiazolinone and parachlorometaxylenol.
A preparation method of a reinforced metal working fluid antiseptic bactericide comprises the following steps:
1) putting hydroxyethyl s-triazine into a reaction kettle, and adding a pH regulator to regulate the pH to 14 under the stirring state;
2) and (3) continuously adding the synergistic antiseptic bactericide into the step 1), stirring, dissolving and mixing, and adding softened water to form the reinforced metal working fluid antiseptic bactericide.
Example 5
The reinforced metal working fluid antiseptic bactericide provided by the embodiment comprises the following substances in parts by weight: 32 parts of hydroxyethyl s-triazine, 10 parts of synergistic antiseptic bactericide, 8 parts of pH regulator and 110 parts of softened water.
The synergistic antiseptic is 1, 2-benzisothiazolinone and parachlorometaxylenol.
A preparation method of a reinforced metal working fluid antiseptic bactericide comprises the following steps:
1) putting hydroxyethyl s-triazine into a reaction kettle, and adding a pH regulator to regulate the pH to 13 under the stirring state;
2) and (3) continuously adding the synergistic antiseptic bactericide into the step 1), stirring, dissolving and mixing, and adding softened water to form the reinforced metal working fluid antiseptic bactericide.
The results of the enhanced metal working fluid anticorrosive bactericide prepared in examples 1 to 5 on the effect of sterilizing bacteria and mold in the metal working fluid stock solution and the metal working fluid are shown in table 1. (Sterilization time 15s)
Table 1 examples 1 to 5 effects on sterilization of bacteria and mold in metal working fluids
From the above, the reinforced metal working fluid antiseptic bactericide prepared by the invention has good sterilization effect on metal working fluid and good sterilization and antiseptic properties.
To further illustrate the superior performance of the corrosion-inhibiting and bactericidal agent for reinforced metal working fluids provided by the present invention, the following tests were performed.
Test 1
Comparison group: 32 parts of hydroxyethyl s-triazine, 8 parts of pH regulator and 110 parts of softened water
Test groups: the reinforced metal working fluid antiseptic and bactericidal agent provided by the embodiment 5.
The test process comprises the following steps: the bactericide of the control group and the bactericide of the test group were subjected to the bacteriostatic spectrum test by the test tube dilution method, and the results are shown in table 2.
TABLE 2 minimum inhibitory concentrations of control and invention against different species
As can be seen from Table 2, the minimum inhibitory concentration to the strain is high by simply adopting the hydroxyethyl s-triazine bactericide; the minimum inhibition concentration of the strain is greatly reduced by adopting the bactericide formed by compounding the hydroxyethyl s-triazine and the synergistic antiseptic bactericide, which shows that the inhibition spectrum range width of the bactericide can be widened by compounding the hydroxyethyl s-triazine and the synergistic antiseptic bactericide.
Test 2
Comparison group: 32 parts of hydroxyethyl s-triazine, 8 parts of pH regulator and 110 parts of softened water
Test groups: the reinforced metal working fluid antiseptic and bactericidal agent provided by the embodiment 5.
The test process comprises the following steps: the comparative and test bactericides were used to test the sterilization time and sterilization degree of different strains, and the results are shown in tables 3 and 4.
TABLE 3 pathogen kill time and effectiveness of 1% solution of hydroxyethyl s-triazine
TABLE 4 pathogen killing time and effect of 1% enhanced antiseptic solution
As can be seen from tables 3 and 4: when the reinforced antiseptic bactericide solution is used for sterilizing for 15 seconds, the sterilization degree can reach 99.99 percent; when the metal working fluid is sterilized for 30 seconds, the sterilization degree is more than 99.99 percent, which shows that the compounded reinforced antiseptic bactericide has strong antiseptic, sterilization, bacteriostasis and mildew resistance, effectively prevents the corrosion of bacteria and fungi, has short bacteriostasis consumption time and high degree, prolongs the service life of the metal working fluid, and saves the storage and maintenance cost.
Test 3
The reinforced metal working fluid antiseptic bactericide prepared in the embodiment 4 of the invention is respectively added into a metal working fluid stock solution and a metal working fluid, and the preservation time of the metal working fluid stock solution and the metal working fluid is determined by monitoring the content change of bacteria.
Finally, the reinforced metal working fluid bactericide is found to prolong the storage period of the metal working fluid stock solution by 3-6 months and the storage period of the metal working fluid by 2-3 days.
The anticorrosive bactericide of the reinforced metal working fluid provided by the invention selects a unique anticorrosive bactericide formula design, increases the drug resistance of the product by using different types of anticorrosive bactericides in a composite way, widens the antibacterial spectrum range, has the characteristics of long acting, sterilization, mildew prevention and the like, solves the anticorrosive storage problem of the metal working fluid, and effectively prolongs the storage period of the metal working fluid.
Claims (8)
1. A reinforced metal working fluid antiseptic bactericide is characterized in that: the reinforced metal working fluid anti-corrosion bactericide comprises the following substances in parts by weight: 20-60 parts of hydroxyethyl s-triazine, 2-20 parts of a synergistic antiseptic bactericide, 1-15 parts of a pH regulator and 25-200 parts of softened water.
2. The enhanced metal working fluid antiseptic bactericide of claim 1, characterized in that: 23-41 parts of hydroxyethyl s-triazine, 6-15 parts of a synergistic antiseptic, 3-11 parts of a pH regulator and 35-150 parts of softened water.
3. The enhanced metal working fluid antiseptic bactericide of claim 2, characterized in that: 32 parts of hydroxyethyl s-triazine, 10 parts of synergistic antiseptic bactericide, 8 parts of pH regulator and 110 parts of softened water.
4. The enhanced metal working fluid antiseptic and bactericidal agent of claim 1,2 or 3, characterized in that: the synergistic antiseptic is one or more of iodopropynyl butylcarbamate, 1,2 benzisothiazolinone, 2-n-octyl-4-isothiazolinone, parachlorometaxylenol and 2-thiocyanomethyl thio-benzothiazole.
5. A method for preparing the reinforced metal working fluid antiseptic and bactericidal agent according to any one of claims 1 to 4, characterized in that: the preparation method comprises the following steps:
1) putting hydroxyethyl s-triazine into a reaction kettle, and adding a pH regulator to regulate the pH value under the stirring state;
2) and (3) continuously adding the synergistic antiseptic bactericide into the step 1), stirring, dissolving and mixing, and adding softened water to form the reinforced metal working fluid antiseptic bactericide.
6. The preparation method of the reinforced metal working fluid antiseptic bactericide of claim 5, characterized in that: and adjusting the pH value to 8-14 in the step 1).
7. Use of the reinforced metal working fluid antiseptic and bactericidal agent of any one of claims 1-4 for broadening the bacteriostatic spectrum of metal working fluids.
8. Use of a reinforced metal working fluid corrosion inhibiting biocide as claimed in any one of claims 1 to 4 for prolonging the storage life of a metal working fluid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010996749.1A CN112136820A (en) | 2020-09-21 | 2020-09-21 | Reinforced metal working fluid anti-corrosion bactericide and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010996749.1A CN112136820A (en) | 2020-09-21 | 2020-09-21 | Reinforced metal working fluid anti-corrosion bactericide and preparation method and application thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5657874A (en) * | 1979-10-18 | 1981-05-20 | Yoshitomi Pharmaceut Ind Ltd | Antiseptic agent of mud drilling process |
| WO1993004584A1 (en) * | 1991-09-05 | 1993-03-18 | Buckman Laboratories International, Inc. | Synergistic combinations of 2-(thiocyanomethylthio)-benzothiazole with hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine in controlling fungal and bacterial growth in aqueous fluids |
| US5374631A (en) * | 1990-10-31 | 1994-12-20 | Buckman Laboratories International, Inc. | Synergistic combinations of iodopropargyl compounds with hexahydro-1,3,5-tris(2-hydroxyethyl)-S-triazine in controlling fungal and bacterial growth in aqueous fluids |
| CN1252937A (en) * | 1998-10-29 | 2000-05-17 | 罗姆和哈斯公司 | Synergic bacteroside composition |
| CN1276400A (en) * | 1999-06-03 | 2000-12-13 | 宋连伟 | Environment protection-type high-quality emulsoid paint |
| CN101347118A (en) * | 2007-07-18 | 2009-01-21 | 罗门哈斯公司 | Microbicidal composition |
| CN102925269A (en) * | 2012-11-09 | 2013-02-13 | 上海应用技术学院 | Aluminum alloy semisynthesis cutting liquid and preparation method thereof |
| CN103355315A (en) * | 2012-04-10 | 2013-10-23 | 贝仿化工科技（上海）有限公司 | Composition having biological killing effect and use thereof |
-
2020
- 2020-09-21 CN CN202010996749.1A patent/CN112136820A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5657874A (en) * | 1979-10-18 | 1981-05-20 | Yoshitomi Pharmaceut Ind Ltd | Antiseptic agent of mud drilling process |
| US5374631A (en) * | 1990-10-31 | 1994-12-20 | Buckman Laboratories International, Inc. | Synergistic combinations of iodopropargyl compounds with hexahydro-1,3,5-tris(2-hydroxyethyl)-S-triazine in controlling fungal and bacterial growth in aqueous fluids |
| WO1993004584A1 (en) * | 1991-09-05 | 1993-03-18 | Buckman Laboratories International, Inc. | Synergistic combinations of 2-(thiocyanomethylthio)-benzothiazole with hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine in controlling fungal and bacterial growth in aqueous fluids |
| US5198440A (en) * | 1991-09-05 | 1993-03-30 | Buckman Laboratories International, Inc. | Synergistic combinations of 2-(thiocyanomethylthio)-benzothiazole with hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine in controlling fungal and bacterial growth in aqueous fluids |
| CN1252937A (en) * | 1998-10-29 | 2000-05-17 | 罗姆和哈斯公司 | Synergic bacteroside composition |
| CN1276400A (en) * | 1999-06-03 | 2000-12-13 | 宋连伟 | Environment protection-type high-quality emulsoid paint |
| CN101347118A (en) * | 2007-07-18 | 2009-01-21 | 罗门哈斯公司 | Microbicidal composition |
| CN103355315A (en) * | 2012-04-10 | 2013-10-23 | 贝仿化工科技（上海）有限公司 | Composition having biological killing effect and use thereof |
| CN102925269A (en) * | 2012-11-09 | 2013-02-13 | 上海应用技术学院 | Aluminum alloy semisynthesis cutting liquid and preparation method thereof |
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