Daily chemical product bacteriostatic agent and preparation method thereof

Abstract

The invention discloses a bacteriostatic agent for daily chemical products and a preparation method thereof. The bacteriostatic agent comprises 10-25% of chlorohydrocarbyl functional group silane, 20-30% of fatty alcohol amine, 5-10% of choline chloride, 7-12% of pentanediol, 5-10% of octylene glycol, 10-15% of ethanol, 5-8% of sodium citrate, 5-10% of potassium carbonate, 5-10% of boric acid and the balance of deionized water. Wherein the chlorohydrocarbyl functional group silane, the fatty alcohol amine, the choline chloride, the pentanediol, the octylene glycol, the sodium citrate and the ethanol are organic bacteriostatic agents and can sterilize bacteria and fungi at the same time, and the chlorohydrocarbyl functional group silane and the fatty alcohol amine endow the fabric cleaning agent with certain stability, good tolerance and softness, and when the fabric cleaning agent is applied, fabric stiffness cannot be caused. Potassium carbonate and boric acid are inorganic antibacterial components, so that the inhibition and killing effects on fungi are further enhanced. According to the invention, the organic antibacterial agent and the inorganic antibacterial agent are cooperated to inhibit and sterilize bacteria and fungi, so that the sterilization effect, especially the sterilization effect of fungi, is improved, and the sterilization durability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of bacteriostatic agents, and particularly relates to a bacteriostatic agent for daily chemical products and a preparation method thereof. Background Art

[0002] The way for humans to be infected with bacteria is usually caused by unhygienic living habits. One of the ways of bacteria transmission is through clothing. Clothes will not only adsorb bacteria growing in the air, but also adsorb bacteria growing on the human epidermis. The ways of bacteria transmission also include foodborne transmission, daily necessities transmission, etc.

[0003] One of the ways to solve bacteria is to sterilize items before use, such as adding bacteriostatic components to fruit and vegetable cleaners and laundry detergents. By adding a certain amount of antibacterial agent to the products during use, it can not only inhibit and kill microorganisms on the objects, but also effectively block people's contact with pathogenic bacteria, greatly reducing the spread of diseases.

[0004] Antibacterial agents are mainly organic antibacterial agents, inorganic antibacterial agents and composite antibacterial agents. Among them, the more widely used one is the composite antibacterial agent, which is a combination of different types of antibacterial agents. Through their synergistic effect and complementary advantages, the performance and application range of the antibacterial agent are greatly improved. However, the bacteriostatic durability and wash resistance of the current antibacterial cleaning agents on the market are not good. Summary of the Invention

[0005] In view of the above problems, the present invention improves the formula of the existing bacteriostatic agent for daily chemical products, and provides a bacteriostatic agent for daily chemical products with good stability, excellent bacteriostatic and cleaning durability effects. To achieve this purpose, the technical solutions provided by the present invention are as follows:

[0006] In the first aspect of the present invention, there is provided a bacteriostatic agent for daily chemical products, comprising the following components in percentage by weight: 10-25% of chlorohydrocarbyl functional group silane, 20-30% of fatty alcohol amine, 5-10% of choline chloride, 7-12% of pentylene glycol, 5-10% of octylene glycol, 10-15% of ethanol, 5-8% of sodium citrate, 5-10% of potassium carbonate, 5-10% of boric acid, and the balance being deionized water.

[0007] In the bacteriostatic agent for daily chemical products provided by the present invention, the organic antibacterial components are: chlorohydrocarbyl functional group silane, fatty alcohol amine, choline chloride, pentylene glycol, octylene glycol, sodium citrate and ethanol, which can sterilize bacteria and fungi at the same time. Moreover, chlorohydrocarbyl functional group silane and fatty alcohol amine endow it with certain stability, good tolerance and softness. When applied to fabric cleaners, it will not cause the fabric to become stiff. The inorganic antibacterial components are potassium carbonate and boric acid, and boric acid has a certain inhibitory and killing effect on fungi.

[0008] The present invention uses an organic antibacterial agent and an inorganic antibacterial agent in synergy to inhibit and sterilize bacteria and fungi, which helps to improve the sterilization effect, especially the sterilization effect on fungi, and also enhances the persistence of sterilization.

[0009] Preferably, the antibacterial agent for daily chemical products provided by the present invention further has the following technical feature: the chlorohydrocarbyl functional group silane is chloropropyltrimethoxysilane.

[0010] Preferably, the antibacterial agent for daily chemical products provided by the present invention further has the following technical feature: the fatty alcohol amine is hexadecyltrimethylamine.

[0011] More preferably, the antibacterial agent for daily chemical products provided by the present invention further has the following technical feature: it includes the following components in weight percentage: 18% of chlorohydrocarbyl functional group silane, 25% of fatty alcohol amine, 8% of choline chloride, 10% of pentanediol, 8% of octanediol, 13% of ethanol, 6% of sodium citrate, 8% of potassium carbonate, 8% of boric acid, and the balance is deionized water.

[0012] In the second aspect of the present invention, a preparation method of the above-mentioned antibacterial agent for daily chemical products is provided, including the following steps:

[0013] S1: Add the chlorohydrocarbyl functional group silane, fatty alcohol amine, choline chloride, and sodium citrate into a stirrer and stir, heat to 85 - 90 °C, and stir for 25 - 30 min to obtain emulsion A;

[0014] S2: While stirring, add potassium carbonate, pentanediol, and octanediol to the emulsion A obtained in step S1, stir for 15 - 20 min, and cool to room temperature to obtain a preliminary mixed solution B;

[0015] S3: After mixing and dissolving boric acid and ethanol, adjust the pH of the preliminary mixed solution A obtained in step S2 to neutral to obtain the product.

[0016] Preferably, in the preparation method of the antibacterial agent for daily chemical products provided by the present invention, the stirring speed in S1 and S2 is 250 - 300 r / min.

[0017] Preferably, in the preparation method of the antibacterial agent for daily chemical products provided by the present invention, the pH of the preliminary mixed solution A is adjusted to 7.0 - 7.5 in step S3.

[0018] The antibacterial agent for daily chemical products described in the present invention can be applied to textile fabric fungicides, fruit and vegetable cleaners, or cleaning daily chemical products.

[0019] Due to the adoption of the above technical solution, the present invention has the following advantages and beneficial effects:

[0020] Good sterilization effect: The components used in the present invention have very low toxicity. The organic antibacterial agent and the inorganic antibacterial agent are used in combination, which not only solves the problems of high toxicity of the organic antibacterial agent, easy generation of drug resistance by microorganisms, and short service life, but also solves the problem of heavy metal deposition of the inorganic antibacterial agent.

[0021] Wide sterilization range: Among the components used in the present invention, there is not only a good sterilization effect on bacteria, but also a good sterilization effect on fungal strains.

[0022] The antibacterial effect, its persistence and wash resistance are all excellent, and it has good softness for fabrics. Specific embodiments

[0023] To illustrate the present invention more clearly, the following further describes the present invention in conjunction with preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the protection scope of the present invention.

[0024] Example 1

[0025] The daily chemical product bacteriostatic agent provided in this example includes the following components: 10% chloropropyltrimethoxysilane, 20% hexadecyltrimethylamine, 5% choline chloride, 7% pentylene glycol, 5% octylene glycol, 10% ethanol, 5% sodium citrate, 5% potassium carbonate, 5% boric acid, and the balance is deionized water.

[0026] The preparation method of the daily chemical product bacteriostatic agent in this example is as follows:

[0027] S1: Add chloropropyltrimethoxysilane, hexadecyltrimethylamine, choline chloride, and sodium citrate into a stirrer, stir, heat to 85 °C, and stir for 30 min to obtain emulsion A;

[0028] S2: While stirring, add potassium carbonate, pentylene glycol, and octylene glycol to the emulsion A obtained in step S1, stir for 15 min, and cool to room temperature to obtain a preliminary mixed solution B;

[0029] S3: After mixing and dissolving boric acid and ethanol, adjust the pH of the preliminary mixed solution A obtained in step S2 to 7.2 to obtain the product.

[0030] Example 2

[0031] The daily chemical product bacteriostatic agent provided in this example includes the following components: 18% chloropropyltrimethoxysilane, 25% hexadecyltrimethylamine, 8% choline chloride, 10% pentylene glycol, 8% octylene glycol, 13% ethanol, 6% sodium citrate, 8% potassium carbonate, 8% boric acid, and the balance is deionized water.

[0032] The preparation method of the daily chemical product bacteriostatic agent in this example is as follows:

[0033] S1: Add chloropropyltrimethoxysilane, hexadecyltrimethylamine, choline chloride, and sodium citrate into a stirrer, stir, heat to 90 °C, and stir for 25 min to obtain emulsion A;

[0034] S2: While stirring, add potassium carbonate, pentylene glycol, and octylene glycol to the emulsion A obtained in step S1, stir for 15 min, and cool to room temperature to obtain the preliminary mixed solution B;

[0035] S3: After mixing and dissolving boric acid and ethanol, adjust the pH of the preliminary mixed solution A obtained in step S2 to 7.3 to obtain the product.

[0036] Example 3

[0037] The daily chemical antibacterial agent provided in this example includes the following components: 25% of chloropropyltrimethoxysilane, 30% of hexadecyltrimethylamine, 10% of choline chloride, 12% of pentylene glycol, 10% of octylene glycol, 15% of ethanol, 8% of sodium citrate, 10% of potassium carbonate, 10% of boric acid, and the balance is deionized water.

[0038] The preparation method of the daily chemical antibacterial agent in this example is as follows:

[0039] S1: Add chloropropyltrimethoxysilane, hexadecyltrimethylamine, choline chloride, and sodium citrate into a stirrer, stir, heat to 90 °C, and stir for 25 min to obtain emulsion A;

[0040] S2: While stirring, add potassium carbonate, pentylene glycol, and octylene glycol to the emulsion A obtained in step S1, stir for 15 min, and cool to room temperature to obtain the preliminary mixed solution B;

[0041] S3: After mixing and dissolving boric acid and ethanol, adjust the pH of the preliminary mixed solution A obtained in step S2 to 7.5 to obtain the product.

[0042] Effect verification: Antibacterial test

[0043] Test objects: The daily chemical antibacterial agents prepared in Examples 1-3.

[0044] Bacterial strains: Staphylococcus aureus, Escherichia coli, Candida albicans.

[0045] Test method: Mix 0.1 ml of the antibacterial agent with 100 ml of water, stir evenly, then mix with agar to make an agar medium. Inoculate Staphylococcus aureus, Escherichia coli, and Candida albicans on 3 media respectively, place them in an incubator at 37 °C for 20 hours, observe the number of colonies, calculate the sterilization rate, set a control group (without adding the antibacterial agent), 1 - sterilization rate = number of colonies / number of colonies in the control group × 100%.

[0046] Table 1 Antibacterial test results of Examples 1-3

[0047] Experimental subjects Staphylococcus aureus Escherichia coli Candida albicans Example 1 94.1％ 96.2％ 85.8％ Example 2 95.2％ 97.1％ 87.5％ Example 3 94.8％ 95.8％ 86.9％

[0048] The results show that the bacteriostatic agents of the three embodiments of the present invention have excellent bactericidal effects on Staphylococcus aureus, Escherichia coli, and Candida albicans, and the bactericidal effect on Escherichia coli is the best. It is indicated that the antibacterial agent components are used in combination in the present invention, and the effect is better.

[0049] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent can make some changes or modifications to equivalent embodiments by using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A bacteriostatic agent for daily chemical products, characterized in that, Comprising the following components by weight percentage: 10-25% of chlorohydrocarbyl functional group silane, 20-30% of fatty alcohol amine, 5-10% of choline chloride, 7-12% of pentanediol, 5-10% of octanediol, 10-15% of ethanol, 5-8% of sodium citrate, 5-10% of potassium carbonate, 5-10% of boric acid, and the balance being deionized water.

2. The bacteriostatic agent for daily chemical products according to claim 1, characterized in that: Wherein, The chlorohydrocarbyl functional group silane is chloropropyltrimethoxysilane.

3. The bacteriostatic agent for daily chemical products according to claim 1, characterized in that: Wherein, The fatty alcohol amine is hexadecyl tertiary amine.

4. The bacteriostatic agent for daily chemical products according to claim 3, characterized in that, Comprising the following components by weight percentage: 18% of chlorohydrocarbyl functional group silane, 25% of fatty alcohol amine, 8% of choline chloride, 10% of pentanediol, 8% of octanediol, 13% of ethanol, 6% of sodium citrate, 8% of potassium carbonate, 8% of boric acid, and the balance being deionized water.

5. A preparation method of the bacteriostatic agent for daily chemical products according to any one of claims 1 to 4, characterized in that, Comprising the following steps: S1: Add the chlorohydrocarbyl functional group silane, fatty alcohol amine, choline chloride, and sodium citrate into a stirrer and stir, heat to 85-90 °C, and stir for 25-30 min to obtain emulsion A; S2: Add potassium carbonate, pentanediol, and octanediol to the emulsion A obtained in step S1 while stirring, stir for 15-20 min, and cool to room temperature to obtain the preliminary mixed solution B; S3: After mixing and dissolving boric acid and ethanol, adjust the pH of the preliminary mixed solution A obtained in step S2 to neutral to obtain the product.

6. The preparation method of the bacteriostatic agent for daily chemical products according to claim 5, characterized in that: Wherein, The stirring speed in S1 and S2 is 250-300 r / min.

7. The preparation method of the bacteriostatic agent for daily chemical products according to claim 5, characterized in that: Wherein, In step S3, adjust the pH of the preliminary mixed solution A to 7.0-7.5.