Foam type organochlorine disinfectant as well as preparation method and application thereof

Abstract

The invention relates to a foam type organochlorine disinfectant as well as a preparation method and application thereof, and belongs to the technical field of disinfectants. Magnesium sulfate is modified by polysilicic acid, so that a stable wrapping system is formed between the modified magnesium sulfate and organochlorine, and the stability and long-term effectiveness of an effective chlorine component in the using process are greatly improved; meanwhile, a synergistic effect between the surfactant and sodium dimethylbenzene sulfonate is introduced to construct an additional protection layer, so that the overall stability of the organochlorine disinfectant is further reinforced, and possible harmful contact of the organochlorine disinfectant under complex or bad environmental conditions is blocked; performance reduction or potential hazards caused by environmental factors are effectively prevented, and safe and efficient use of the disinfectant is ensured. According to the foam type organochlorine disinfectant, a double wrapping system is utilized, the long-term effect and stability of the disinfection effect are improved, and the environmental adaptability and use safety of the product are remarkably enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of disinfectants and relates to a foam type organochlorine disinfectant and a preparation method and application thereof. Background Art

[0002] With the rapid development of modern agriculture, the scale and intensiveness of livestock and poultry farming have been continuously improved, and the sanitary requirements for the breeding environment have become increasingly stringent. In order to effectively prevent the spread of diseases, protect the health of livestock and poultry, promote the sustainable development of the breeding industry, and improve the overall economic and social benefits, disinfection has become an indispensable part of breeding management. Among the many disinfectants, organochlorine preparations have been widely used in farm disinfection due to their broad-spectrum bactericidal and low price advantages.

[0003] However, traditional organochlorine disinfectants are mostly in the form of powders, which need to be diluted with water before spraying. This liquid spraying method has exposed many disadvantages in actual operation. First, liquid disinfectants are lost quickly after spraying, and it is difficult to stay on the surface of objects for a long time, resulting in a shortened effective disinfection time and affecting the disinfection effect. Secondly, due to the lack of intuitive recognition effect in the liquid form, it is difficult to ensure that all areas can be fully disinfected, and it is easy to form disinfection dead corners, increasing the risk of disease transmission. Furthermore, liquid disinfectants are easy to volatilize in high temperature or well-ventilated environments, especially in summer, this phenomenon is particularly obvious, further weakening the disinfection effect. Finally, the liquid spraying method is also accompanied by the waste of disinfectants, which is not in line with the core concept of modern aquaculture to pursue cost reduction and efficiency improvement. In view of the limitations of the above-mentioned traditional liquid disinfection methods, it is particularly important to develop a new disinfectant product that can overcome these disadvantages. Summary of the invention

[0004] The purpose of the present invention is to provide a foam-type organochlorine disinfectant and a preparation method and application thereof, which has the characteristics of safety, environmental protection, stability and long-term effect.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A foam type organochlorine disinfectant, the formula of the organochlorine disinfectant is as follows: in parts by weight, 15 to 25 parts of organochlorine, 10 to 20 parts of surfactant, 5 to 10 parts of sodium dimethylbenzenesulfonate, 3 to 5 parts of modified magnesium sulfate, and 2 to 5 parts of a stabilizing regulator.

[0007] Wherein, the preparation method of modified magnesium sulfate is as follows:

[0008] S1-1: placing anhydrous magnesium sulfate in a ball mill and milling the anhydrous magnesium sulfate at a ball milling speed of 350 r / min for 30 min to obtain anhydrous magnesium sulfate after ball milling;

[0009] S1-2: sodium silicate and deionized water are mixed in a mass ratio of 1:50 to obtain a sodium silicate solution, a sulfuric acid solution is used to adjust the pH value of the sodium silicate solution to 1.5-2.0, and the mixture is stirred at 40° C. for 1.5 h to obtain polysilicic acid;

[0010] S1-3: The ball-milled anhydrous magnesium sulfate and polysilicic acid were mixed in a mass ratio of 1:5, and ultrasonically stirred at 60°C for 2 to 3 hours. The mixture was washed three times with deionized water, separated in a high-speed centrifuge to obtain a solid precipitate, and dried in a vacuum drying oven at 60°C for 12 hours to obtain modified magnesium sulfate.

[0011] Furthermore, the organic chlorine is one or both of sodium dichloroisocyanurate and trichloroisocyanuric acid.

[0012] Furthermore, the surfactant is one or more of sodium dodecyl sulfate, sodium dodecylbenzene sulfonate, sodium coconut oil isethionate, and sodium α-olefin sulfonate.

[0013] Furthermore, the stabilizing regulator is one or more of citric acid, aminosulfonic acid, malic acid and fumaric acid.

[0014] Furthermore, the concentration of the sulfuric acid solution in S1-2 is 2M.

[0015] A method for preparing a foam-type organochlorine disinfectant, the preparation process of the organochlorine disinfectant is as follows:

[0016] S6-1: Mixing the surfactant and sodium dimethylbenzenesulfonate according to the formula to obtain a coating system A;

[0017] S6-2: mixing the organic chlorine with the modified magnesium sulfate to obtain a coating system B;

[0018] S6-3: Mix the encapsulation system A, the encapsulation system B and the stabilizing regulator for 30 minutes to obtain the organochlorine disinfectant.

[0019] An application of a foam-type organochlorine disinfectant, wherein the disinfectant is applied to disinfect a farm, wherein the disinfectant is mixed with deionized water in a volume ratio of 1:499 to obtain a disinfectant dilution, and a high-pressure cleaning device with a foaming gun head is used to spray the disinfectant dilution onto the surface of an object to be disinfected, and the disinfectant dilution forms foam on the surface of the object and adheres to the surface of the object.

[0020] Magnesium sulfate has become an ideal material for constructing an organochlorine encapsulation system due to its good fire resistance and low thermal conductivity. Polysilicic acid is an inorganic polymer compound with high adsorption properties. The abundant silanol groups on its molecular chain provide active sites for chemical reactions and can form stable chemical bonds or adsorption layers with a variety of substances. When polysilicic acid and magnesium sulfate are combined under suitable conditions, the advantages of the two are superimposed on each other, and the overall adsorption capacity is significantly improved, providing more effective sites for adsorbing and encapsulating organochlorine molecules. Modified magnesium sulfate achieves effective fixation of organochlorine molecules through adsorption and encapsulation mechanisms, limiting direct contact between organochlorine and air, moisture, and other substances in the environment that may cause adverse reactions. It can not only improve the stability of organochlorine and avoid its decomposition and reaction during storage or use, but also ensure the safety and effectiveness of disinfectants in application environments such as farms, reducing potential impacts on the surrounding environment.

[0021] The molecular structure of sodium dimethylbenzenesulfonate contains not only the sulfonate group, a strong hydrophilic group, but also benzene rings and methyl hydrophobic groups. This amphiphilicity enables it to form micelles in aqueous solutions or adsorb on the surface of surfactants. Under certain conditions, organochlorine disinfectants may have the risk of spontaneous combustion, especially when in contact with certain flammable substances. By attaching sodium dimethylbenzenesulfonate to the surface of the surfactant to form a coating system and two coating systems consisting of modified magnesium sulfate and organochlorine, the direct contact between the organochlorine disinfectant and the flammable substance can be effectively isolated, thereby reducing the risk of spontaneous combustion of organochlorine. In addition, the treatment of the two coating systems also significantly improves the overall safety of the product, reduces the release and exposure of harmful substances, and reduces the potential harm to the environment and human body; at the same time, this coating technology can also improve the stability and performance of the product, making it more suitable for various application scenarios.

[0022] By adding an appropriate amount of stabilizing regulator, the pH value of the disinfectant dilution can be controlled between 6.0 and 7.0, showing weak acidity. The weak acid system can keep the chlorine in the solution stable, effectively inhibit its decomposition by delaying the hydrolysis reaction of organic chlorine, and promote the stable existence of effective chlorine components in the solution, thereby ensuring the chemical stability, long-term effectiveness and safety of the product.

[0023] Beneficial effects of the present invention:

[0024] (1) The combination of magnesium sulfate and polysilicic acid significantly improves the overall adsorption capacity. By increasing the adsorption sites, it effectively fixes and encapsulates the organochlorine molecules, reduces their direct contact with adverse environmental factors, prevents decomposition and reaction, and thus enhances the stability and long-term effectiveness of the organochlorine. At the same time, the encapsulation mechanism also significantly improves the safety of the disinfectant in environments such as farms and reduces the potential impact on the environment. The encapsulation layer formed between sodium dimethylbenzenesulfonate and the surfactant further isolates the organochlorine disinfectant from direct contact with flammable substances, reduces the risk of spontaneous combustion, and improves the overall safety of the product.

[0025] (2) The organochlorine product is made into foam, which can stay on the surface of the object for a long time, significantly enhancing the disinfection effect and ensuring full coverage without dead corners. At the same time, its obvious identification effect makes the disinfection process visual, facilitating immediate inspection of whether the disinfection is in place. In addition, the foam adheres stably and is not easy to evaporate, reducing the loss of disinfectant. Thus, while ensuring the quality of disinfection, it effectively reduces the amount of disinfectant used and the water resource consumption of the farm, achieving the environmental protection goal of reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a picture showing the effect of mixing the disinfectant prepared in Example 1 of the present invention with deionized water in a volume ratio of 1:499 and then spraying the diluted solution onto the wall to be disinfected using a high-pressure cleaning device;

[0028] Figure 2 This is a picture showing the effect of mixing the disinfectant in comparative example 1 of the present invention with deionized water in a volume ratio of 1:499 and then using a high-pressure cleaning device to spray the diluted liquid onto the wall to be disinfected. DETAILED DESCRIPTION

[0029] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0030] CAS / Article No. Manufacturer Anhydrous magnesium sulfate 7487-88-9 Laizhou Guangcheng Chemical Co., Ltd. Sodium silicate 1344-09-8 Jiangxi Yigao Chemical Industry Development Co., Ltd. Sodium dichloroisocyanurate 135503 Chengdu Alcoa Chemical Reagent Co., Ltd. Trichloroisocyanuric acid 87-90-1 Heze Huayi Chemical Co., Ltd. Sodium Lauryl Sulfate 151-21-3 Hunan Lichen Aowei Industrial Co., Ltd. Sodium dodecylbenzenesulfonate 25155-30-0 Jiangsu Runfeng Synthetic Technology Co., Ltd. Sodium Cocoyl Isethionate 61789-32-0 Hebei Clavier Biotechnology Co., Ltd. Sodium α-olefin sulfonate 68439-57-6 Hubei Zhonglong Kangsheng Fine Chemical Co., Ltd. Citric Acid 77-92-9 Hunan Dongting Citric Acid Chemical Co., Ltd. Sulfamic acid 5329-14-6 Shanghai Aladdin Biochemical Technology Co., Ltd. Malic Acid 6915-15-7 Changzhou Sykes Chemical Co., Ltd. Fumaric acid 110-17-8 Guangzhou Haoyu International Trade Co., Ltd.

[0031] Example 1

[0032] Formula 1, by weight, 20 parts of sodium dichloroisocyanurate, 10 parts of sodium cocoyl isethionate, 5 parts of sodium dodecylbenzene sulfonate, 8 parts of sodium dimethylbenzene sulfonate, 5 parts of modified magnesium sulfate, 3 parts of citric acid,

[0033] Wherein, the preparation method of modified magnesium sulfate is as follows:

[0034] S1-1: placing anhydrous magnesium sulfate in a ball mill and milling the anhydrous magnesium sulfate at a ball milling speed of 350 r / min for 30 min to obtain anhydrous magnesium sulfate after ball milling;

[0035] S1-2: sodium silicate and deionized water were mixed in a mass ratio of 1:50 to obtain a sodium silicate solution, the pH value of the sodium silicate solution was adjusted to 1.5 with a 2M sulfuric acid solution, and the mixture was stirred at 40° C. for 1.5 h to obtain polysilicic acid;

[0036] S1-3: The ball-milled anhydrous magnesium sulfate and polysilicic acid were mixed in a mass ratio of 1:5, and ultrasonically stirred at 60°C for 2 hours. The mixture was washed three times with deionized water, separated in a high-speed centrifuge to obtain a solid precipitate, and dried in a vacuum drying oven at 60°C for 12 hours to obtain modified magnesium sulfate.

[0037] The preparation method of the organochlorine disinfectant is as follows:

[0038] S6-1: sodium dodecylbenzene sulfonate, sodium cocoyl isethionate and sodium dimethylbenzene sulfonate are mixed according to formula 1 to obtain a coating system A;

[0039] S6-2: Mixing sodium dichloroisocyanurate and modified magnesium sulfate to obtain a coating system B;

[0040] S6-3: Mix the encapsulation system A, the encapsulation system B and citric acid for 30 minutes to obtain the organochlorine disinfectant.

[0041] The application of the foam-type organochlorine disinfectant is used for disinfection of farms. The disinfectant is mixed with deionized water in a volume ratio of 1:499 to obtain a disinfectant dilution. A high-pressure cleaning device with a foaming gun head is used to spray the disinfectant dilution on the surface of the object to be disinfected. The disinfectant dilution forms foam on the surface of the object and adheres to the surface of the object.

[0042] The disinfectant prepared in Example 1 was mixed with deionized water in a volume ratio of 1:499, and then the diluted solution was sprayed onto the wall to be disinfected using a high-pressure cleaning device. Figure 1 As shown, the diluted liquid of the product of the present invention is sprayed onto the wall in the form of foam and adheres to the wall. The foam adheres to the wall for a long time, is easy to manage and identify, and can significantly improve the disinfection effect.

[0043] Example 2

[0044] Formula 2, by weight, 20 parts of trichloroisocyanuric acid, 10 parts of sodium α-olefin sulfonate, 10 parts of sodium dodecylbenzene sulfonate, 10 parts of sodium dimethylbenzene sulfonate, 3 parts of modified magnesium sulfate, 4 parts of malic acid,

[0045] Wherein, the preparation method of modified magnesium sulfate is as follows:

[0046] S1-1: placing anhydrous magnesium sulfate in a ball mill and milling the anhydrous magnesium sulfate at a ball milling speed of 350 r / min for 30 min to obtain anhydrous magnesium sulfate after ball milling;

[0047] S1-2: sodium silicate and deionized water were mixed in a mass ratio of 1:50 to obtain a sodium silicate solution, the pH value of the sodium silicate solution was adjusted to 1.8 with a 2M sulfuric acid solution, and the mixture was stirred at 40° C. for 1.5 h to obtain polysilicic acid;

[0048] S1-3: The ball-milled anhydrous magnesium sulfate and polysilicic acid were mixed in a mass ratio of 1:5, and ultrasonically stirred at 60°C for 2.5 hours. The mixture was washed three times with deionized water, separated in a high-speed centrifuge to obtain a solid precipitate, and dried in a vacuum drying oven at 60°C for 12 hours to obtain modified magnesium sulfate.

[0049] The preparation method of the organochlorine disinfectant is as follows:

[0050] S6-1: according to formula 2, sodium α-olefin sulfonate, sodium dodecylbenzene sulfonate and sodium dimethylbenzene sulfonate are mixed to obtain a coating system A;

[0051] S6-2: mixing trichloroisocyanuric acid and modified magnesium sulfate to obtain a coating system B;

[0052] S6-3: Mix the encapsulation system A, the encapsulation system B and malic acid for 30 minutes to obtain the organochlorine disinfectant.

[0053] The application of the foam-type organochlorine disinfectant is used for disinfection of farms. The disinfectant is mixed with deionized water in a volume ratio of 1:499 to obtain a disinfectant dilution. A high-pressure cleaning device with a foaming gun head is used to spray the disinfectant dilution on the surface of the object to be disinfected. The disinfectant dilution forms foam on the surface of the object and adheres to the surface of the object.

[0054] Example 3

[0055] Formula 3, by weight, 10 parts of sodium dichloroisocyanurate, 10 parts of trichloroisocyanuric acid, 15 parts of sodium dodecyl sulfate, 5 parts of sodium dodecylbenzene sulfonate, 5 parts of sodium dimethylbenzene sulfonate, 5 parts of modified magnesium sulfate, 2 parts of aminosulfonic acid, 1 part of fumaric acid,

[0056] Wherein, the preparation method of modified magnesium sulfate is as follows:

[0057] S1-1: placing anhydrous magnesium sulfate in a ball mill and milling the anhydrous magnesium sulfate at a ball milling speed of 350 r / min for 30 min to obtain anhydrous magnesium sulfate after ball milling;

[0058] S1-2: sodium silicate and deionized water were mixed in a mass ratio of 1:50 to obtain a sodium silicate solution, the pH value of the sodium silicate solution was adjusted to 2.0 with a 2M sulfuric acid solution, and the mixture was stirred at 40° C. for 1.5 h to obtain polysilicic acid;

[0059] S1-3: The ball-milled anhydrous magnesium sulfate and polysilicic acid were mixed in a mass ratio of 1:5, and ultrasonically stirred at 60°C for 3 hours. The mixture was washed three times with deionized water, separated in a high-speed centrifuge to obtain a solid precipitate, and dried in a vacuum drying oven at 60°C for 12 hours to obtain modified magnesium sulfate.

[0060] The preparation method of the organochlorine disinfectant is as follows:

[0061] S6-1: Mix sodium dodecyl sulfate, sodium dodecylbenzene sulfonate and sodium dimethylbenzene sulfonate according to formula 3 to obtain a coating system A;

[0062] S6-2: Mixing sodium dichloroisocyanurate, trichloroisocyanuric acid and modified magnesium sulfate to obtain a coating system B;

[0063] S6-3: Mix the encapsulation system A, the encapsulation system B, aminosulfonic acid and fumaric acid for 30 minutes to obtain the organochlorine disinfectant.

[0064] The application of the foam-type organochlorine disinfectant is used for disinfection of farms. The disinfectant is mixed with deionized water in a volume ratio of 1:499 to obtain a disinfectant dilution. A high-pressure cleaning device with a foaming gun head is used to spray the disinfectant dilution on the surface of the object to be disinfected. The disinfectant dilution forms foam on the surface of the object and adheres to the surface of the object.

[0065] Comparative Example 1

[0066] A commercially available traditional organochlorine disinfectant was used for comparison. The traditional organochlorine disinfectant was purchased from Jinan Zhongbei Fine Chemical Co., Ltd. The active ingredient was sodium dichloroisocyanurate and the dosage form was powder.

[0067] Among them, the organochlorine disinfectant in this comparative example 1 was mixed with deionized water in a volume ratio of 1:499, and then the diluted solution was sprayed onto the wall to be disinfected using a high-pressure cleaning device. Figure 2 As shown, when the diluted solution of Comparative Example 1 is sprayed on the wall, the water is lost quickly, the disinfection area is difficult to identify, and the long-term disinfection effect is poor.

[0068] Comparative Example 2

[0069] Without adding modified magnesium sulfate, the remaining steps were the same as those in Example 1.

[0070] Comparative Example 3

[0071] Without adding sodium dimethylbenzenesulfonate, the remaining steps were consistent with those in Example 1.

[0072] The chlorine stability in the dilution of the embodiment and the comparative example was tested respectively. The organochlorine disinfectants in the embodiment and the comparative example were diluted 200 times and 500 times with deionized water, respectively. The chlorine content in the dilution of the embodiment and the comparative example was measured within the same period of time, and the effective chlorine reduction rate was calculated.

[0073] The experimental results are summarized in the following table:

[0074]

[0075] It can be seen from the data of the embodiments and comparative examples that modified magnesium sulfate is combined with organic chlorine, and sodium dimethylbenzenesulfonate is combined with a surfactant to form a double-encapsulation system. At the same time, a stabilizing regulator is added to make the disinfectant dilution a weakly acidic system. During actual use, the stability of the effective chlorine is stronger and the disinfection effect is more lasting.

[0076] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A foam type organochlorine disinfectant, characterized in that: The formula of the organochlorine disinfectant is as follows: by weight, 15 to 25 parts of organochlorine, 10 to 20 parts of surfactant, 5 to 10 parts of sodium dimethylbenzenesulfonate, 3 to 5 parts of modified magnesium sulfate, and 2 to 5 parts of stabilizing regulator. Wherein, the preparation method of modified magnesium sulfate is as follows: S1-1: placing anhydrous magnesium sulfate in a ball mill and milling the anhydrous magnesium sulfate at a ball milling speed of 350 r / min for 30 min to obtain anhydrous magnesium sulfate after ball milling; S1-2: sodium silicate and deionized water are mixed in a mass ratio of 1:50 to obtain a sodium silicate solution, a sulfuric acid solution is used to adjust the pH value of the sodium silicate solution to 1.5-2.0, and the mixture is stirred at 40° C. for 1.5 h to obtain polysilicic acid; S1-3: The ball-milled anhydrous magnesium sulfate and polysilicic acid were mixed in a mass ratio of 1:5, and ultrasonically stirred at 60°C for 2 to 3 hours. The mixture was washed three times with deionized water, separated in a high-speed centrifuge to obtain a solid precipitate, and dried in a vacuum drying oven at 60°C for 12 hours to obtain modified magnesium sulfate.

2. A foam type organochlorine disinfectant according to claim 1, characterized in that: The organic chlorine is one or two of sodium dichloroisocyanurate and trichloroisocyanuric acid.

3. A foam type organochlorine disinfectant according to claim 1, characterized in that: The surfactant is one or more of sodium dodecyl sulfate, sodium dodecylbenzene sulfonate, sodium coconut oil isethionate and sodium α-olefin sulfonate.

4. A foam type organochlorine disinfectant according to claim 1, characterized in that: The stabilizing regulator is one or more of citric acid, aminosulfonic acid, malic acid and fumaric acid.

5. A foam type organochlorine disinfectant according to claim 1, characterized in that: The concentration of the sulfuric acid solution in S1-2 is 2M.

6. A method for preparing a foam-type organochlorine disinfectant as claimed in any one of claims 1 to 5, characterized in that: The preparation method of the organochlorine disinfectant is as follows: S6-1: Mixing the surfactant and sodium dimethylbenzenesulfonate according to the formula to obtain a coating system A; S6-2: mixing the organic chlorine with the modified magnesium sulfate to obtain a coating system B; S6-3: Mix the encapsulation system A, the encapsulation system B and the stabilizing regulator for 30 minutes to obtain the organochlorine disinfectant.

7. A use of the foam type organochlorine disinfectant according to any one of claims 1 to 5, characterized in that: The disinfectant is used for disinfection of farms. The disinfectant is mixed with deionized water in a volume ratio of 1:499 to obtain a disinfectant dilution. A high-pressure cleaning device with a foaming gun head is used to spray the disinfectant dilution on the surface of the object to be disinfected. The disinfectant dilution forms foam on the surface of the object and adheres to the surface of the object.

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