A detergent composition containing sodium dodecylbenzenesulfonate and a preparation method thereof

Abstract

The present application relates to the field of detergent technology, and more particularly to a detergent composition containing sodium dodecylbenzene sulfonate and a preparation method thereof. A detergent composition containing sodium dodecylbenzene sulfonate, by mass fraction, including the following preparation raw materials: 3 5 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 3 4 parts of fatty alcohol polyoxyethylene ether, 8 12 parts of sodium dodecylbenzene sulfonate, 6 8 parts of amphoteric surfactants, 3.5 4.5 parts of synergists, 2.6 3 parts of bactericides, 2 4 parts of triethanolamines, 0.5 1 parts of sodium carbonate, 0.3 0.5 parts of chelating agents, 0.3 0.5 parts of preservatives, 65 70 parts of deionized water. The detergent composition containing sodium dodecylbenzene sulfonate provided in the present application not only excels in degreasing, decontamination and antibacterial performance, but also has good mildness and stability, and is friendly to environment and human health, with high practical value and market potential.

Description

Technical Field

[0001] The present application relates to the technical field of detergents, and in particular to a detergent composition containing sodium dodecylbenzenesulfonate and a preparation method thereof. Background Art

[0002] As people's awareness of cleanliness grows, they demand that detergents not only have excellent degreasing properties but, in the case of dishwashing liquids, also have excellent antibacterial and antimicrobial properties. Currently, detergents that offer both excellent degreasing and antibacterial properties often contain a high concentration of compounds that are harmful or highly irritating to human skin. During the washing process, detergents inevitably come into contact with human skin, which is detrimental to the health of those who frequently use detergents. However, current mild detergents struggle to achieve both desired effects. Clearly, the existing technology still needs improvement and advancement. Summary of the Invention

[0003] To address the shortcomings of current technologies, the present application provides a detergent composition containing sodium dodecylbenzenesulfonate and a method for preparing the same. The detergent composition, prepared by compounding multiple mild degreasing and decontamination components with a bactericide, not only exhibits excellent degreasing and antibacterial effects but is also mild and environmentally friendly.

[0004] In a first aspect, the present application provides a detergent composition containing sodium dodecylbenzenesulfonate, which adopts the following technical solution:

[0005] A detergent composition containing sodium dodecylbenzenesulfonate comprises the following raw materials, calculated by weight: 3-5 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 3-4 parts of fatty alcohol polyoxyethylene ether, 8-12 parts of sodium dodecylbenzenesulfonate, 6-8 parts of amphoteric surfactant, 3.5-4.5 parts of synergist, 2.6-3 parts of bactericide, 2-4 parts of triethanolamine, 0.5-1 part of sodium carbonate, 0.3-0.5 part of chelating agent, 0.3-0.5 part of preservative, and 65-70 parts of deionized water. The bactericide is composed of tetradecylmethyl dihydroxyethyl ammonium bromide and pomegranate peel extract.

[0006] By adopting the above technical solution, Sodium Laureth Sulfate: As one of the main active ingredients, it has strong degreasing and cleaning capabilities. Alcohol Ethoxylate: As an auxiliary surfactant, it enhances the detergency of the detergent. Sodium Dodecylbenzenesulfonate: As one of the main active ingredients, it has strong cleaning and emulsifying effects. Amphoteric surfactant: It provides a mild cleaning effect while improving the stability of the detergent. Synergist: The combined use of, such as α-hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl), triethanolamine dodecylbenzenesulfonate, and modified silicone can significantly improve the degreasing effect, antibacterial effect, and stability of the detergent. Among them, α-hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl) provides solubilization effect as a non-ionic surfactant; triethanolamine dodecylbenzenesulfonate enhances stability as a solubilizer and emulsifier; modified silicone provides emulsifying and dispersing effects and improves product stability and antibacterial effect. Bactericide: It consists of tetradecyldimethylethanolammonium bromide and pomegranate peel extract. Tetradecyldimethylethanolammonium bromide provides bactericidal and antistatic effects; pomegranate peel extract provides a mild antibacterial effect. Triethanolamine: As a neutralizer and emulsifier, it helps to adjust the pH value of the detergent and improve the emulsifying effect. Sodium Carbonate: As an alkaline regulator, it helps to improve the cleaning effect of the detergent. Chelating agent: It prevents the influence of metal ions on the performance of the detergent. Preservative: It prevents the detergent from deteriorating during storage and use. Deionized water: As a solvent and diluent, it ensures that all components are evenly dispersed. Sodium Laureth Sulfate, Alcohol Ethoxylate, Sodium Dodecylbenzenesulfonate, and amphoteric surfactant work together to provide strong degreasing and cleaning capabilities. Amphoteric surfactant and modified silicone provide stable emulsifying and dispersing effects, and modified silicone can also improve the performance at low temperatures. Synergistic effect: α-hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl) and triethanolamine dodecylbenzenesulfonate in the synergist provide solubilization and emulsifying effects, and modified silicone provides additional emulsifying and dispersing effects. Tetradecyldimethylethanolammonium bromide and pomegranate peel extract work together to provide a mild and effective antibacterial effect. In summary, these components synergistically improve the comprehensive performance of the detergent, including cleaning effect, stability, antibacterial ability, and use safety.

[0007] Preferably, the mass ratio of tetradecyldimethylethanolammonium bromide to pomegranate peel extract is 3:7.

[0008] By adopting the above technical solutions, tetradecyl methyldiethanol ammonium bromide: As a cationic surfactant, it has strong bactericidal and antistatic effects. Pomegranate peel extract: It contains active ingredients such as polyphenolic compounds and tannins, and has antioxidant and antibacterial effects. The combined action of tetradecyl methyldiethanol ammonium bromide and pomegranate peel extract provides a mild and effective antibacterial effect. Tetradecyl methyldiethanol ammonium bromide reduces the generation of static electricity and decreases dust deposition. The pomegranate peel extract is mild and non-irritating, and is friendly to humans and the environment. These components jointly enhance the comprehensive performance of the detergent through synergistic effects, including cleaning effect, stability, antibacterial ability, and use safety.

[0009] Preferably, the preparation method of the pomegranate peel extract includes the following steps:

[0010] S31. Dry the pomegranate peel, crush it with a high-speed crusher and pass through an 80-mesh sieve to obtain pomegranate peel powder;

[0011] S32. According to the mass parts, mix 10 parts of pomegranate peel powder and 200 parts of distilled water, ultrasonic for 1 - 2 h under the conditions of 500 W and 73 °C, then use vacuum filtration to remove the pomegranate peel residue, and collect the filtrate to obtain the extract;

[0012] S33. According to the mass parts, adjust the pH value of 100 parts of the extract to 3 with acetic acid with a mass concentration of 10%, heat up to 35 - 40 °C, then add 2 parts and decolorize with activated carbon for 35 - 40 minutes, then filter, and concentrate the filtered extract by rotary evaporation under reduced pressure by 50 - 60 times to obtain the pomegranate peel extract.

[0013] By adopting the above technical solutions, drying and crushing, this step ensures the effectiveness of the subsequent extraction process. Ultrasonic extraction: Ultrasonic waves can effectively promote the release of active ingredients and improve the extraction efficiency. Filtration and concentration, this step ensures the purity and stability of the extract. The polyphenolic compounds and tannins in the prepared pomegranate peel extract have strong antioxidant and broad-spectrum antibacterial properties, and can effectively inhibit the growth of various bacteria (such as Staphylococcus aureus). The combination of the polyphenolic compounds in the pomegranate peel extract and the cationic action of tetradecyl methyldiethanol ammonium bromide forms a multi-mechanism antibacterial barrier, effectively inhibiting the growth of bacteria, enhancing the overall antibacterial effect, and reducing bacterial residues. Modified silicone enhances the adhesion and penetration of the pomegranate peel extract by introducing amino groups and long-chain alkoxy groups, further improving the antibacterial effect. The pomegranate peel extract is mild and non-irritating, suitable for sensitive skin, and will not cause skin allergies or discomfort. Natural source, friendly to the environment, and in line with the concept of green chemistry. In summary, the pomegranate peel extract not only plays an important antibacterial and mild role in the detergent composition, but also significantly improves the overall performance and use effect of the detergent through synergistic effects with various components.

[0014] Preferably, the preparation method of the amphoteric surfactant comprises the following steps:

[0015] S41. By mass, under nitrogen protection, 21.34 parts of docosyl dimethyl tertiary amine are added into a reactor, and then 30 parts of acetone are added. After stirring at 25 °C for 6 - 8 min, 6.46 parts of 1,3 - dichloro - 2 - propanol are added. After mixing evenly, the reaction system is heated to 75 - 80 °C and reacted for 8 - 10 h. After the reaction is completed, the solvent is removed by rotary evaporation, and recrystallized with ethyl acetate 5 times to obtain an intermediate.

[0016] S42. By mass, under nitrogen protection, 22.24 parts of the intermediate are mixed evenly with 35 parts of tetrahydrofuran at 25 °C and then added into a reactor. Then, 5.60 parts of chlorosulfonic acid and 22 parts of tetrahydrofuran are mixed evenly and slowly added into the reactor. After reacting for 4 - 5 h, a saturated aqueous solution of sodium hydroxide is slowly added to adjust the pH to 8.5 - 9. Then, the solvent is removed by rotary evaporation, refluxed in ethanol for 0.5 - 1 h, the inorganic salts are removed by filtration, and recrystallized with acetone 3 times to obtain the amphoteric surfactant.

[0017] By adopting the above technical solution, the prepared amphoteric surfactant synthesizes an amphoteric surfactant with a sulfonic acid group on the linking group from docosyl dimethyl tertiary amine, 1,3 - dichloro - 2 - propanol and chlorosulfonic acid, which can significantly improve the degreasing effect of the detergent composition. The surfactant has amphoteric groups and can adsorb anions and cations simultaneously, making the detergent composition more stable and having excellent high - and low - temperature stability. The amphoteric surfactant can significantly improve the degreasing effect of the detergent composition. It synergistically acts with other surfactants such as α - hexyl - ω - hydroxy poly(oxy - 1,2 - ethanediyl) and triethanolamine dodecylbenzenesulfonate, etc., to further improve the degreasing effect and stability of the detergent. At the same time, it synergistically acts with the modified silicone to improve the emulsification and dispersion effects of the detergent and improve the product stability. In short, the amphoteric surfactant not only improves the degreasing effect and stability of the detergent, but also synergistically acts with other components to enhance the overall washing performance and user experience.

[0018] Preferably, the synergist is prepared by mixing α - hexyl - ω - hydroxy poly(oxy - 1,2 - ethanediyl), triethanolamine dodecylbenzenesulfonate and modified silicone in a mass ratio of 3:4:5.

[0019] By adopting the above technical solution, the synergist is compounded from α-hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl), triethanolamine dodecylbenzenesulfonate and modified silicone in a mass ratio of 3:4:5. Through the synergistic effect of each component, the degreasing effect, stability and antibacterial performance of the detergent are significantly improved. α-Hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl) (nonionic surfactant) enhances the solubilization ability of oily dirt through its long-chain polyoxyethylene structure, and helps hydrophobic substances disperse in the aqueous phase. As a nonionic surfactant, it can reduce the critical micelle concentration (CMC) of other ionic surfactants (such as sodium dodecylbenzenesulfonate), and improve the stability of the detergent system. Triethanolamine dodecylbenzenesulfonate (anionic surfactant derivative) enhances the emulsification ability of grease through its anionic characteristics, and synergistically improves the degreasing effect with sodium dodecylbenzenesulfonate. Combined with amphoteric surfactants, it reduces the electrostatic repulsion in the system through the charge neutralization effect, and prevents micelle aggregation and stratification. Modified silicone (weak cationic hydrophilic modified silicone oil) enhances the emulsification ability of oil stains and promotes the dispersion of dirt particles by introducing amino and polyether segments, preventing redeposition. Improve the high and low temperature stability of the detergent, and prevent stratification or crystallization. Its weak cationicity enables electrostatic adsorption with bactericides (such as tetradecyl methyldihydroxyethyl ammonium bromide), helping the bactericide to adhere more firmly to the surface of the cleaned object and enhancing the antibacterial persistence. The three are compounded in a mass ratio of 3:4:5, and the specific synergistic effects are as follows: 1. Solubilization-emulsification synergy: The solubilization ability of α-hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl) is combined with the emulsification of triethanolamine dodecylbenzenesulfonate to form a "solubilization-emulsification" dual decontamination mechanism. The nonionic surfactant solubilizes the oil stain into the micelle core, and the anion surfactant decomposes the large particle oil stain into tiny droplets through emulsification, significantly improving the degreasing efficiency. The dispersion effect of modified silicone further prevents the redeposition of emulsified oil stains, ensuring the cleanliness of the surface of the cleaned object. 2. Stability synergy: Charge complementarity of nonionic and anionic surfactants: The neutral characteristics of nonionic surfactants can reduce the electrostatic repulsion between anionic surfactants, reduce the system viscosity, and improve the fluidity. Interface stabilization effect of modified silicone: By adsorbing on the surface of micelles to form a protective layer, it inhibits micelle aggregation or demulsification, and enhances the high and low temperature stability of the system. 3. Antibacterial synergistic effect: The weak cationicity of modified silicone and the cationic bactericide (tetradecyl methyldihydroxyethyl ammonium bromide) are combined through electrostatic interaction to form a "bactericide-silicone complex". The long-chain polyether structure of silicone helps the bactericide to be evenly dispersed in the detergent, avoiding local high concentration and causing irritation. During the cleaning process, the hydrophobic group (octamethylcyclotetrasiloxane skeleton) of silicone can adsorb on the surface of the bacterial cell membrane, enhancing the penetration of the bactericide into the cell wall, destroying the protein structure, and improving the antibacterial efficiency.4. Synergy of environmental protection and mildness: The natural antibacterial components of pomegranate peel extract are combined with the weak cationicity of modified silicone, reducing the dependence on chemical fungicides, decreasing the irritation to the skin and the environment, and jointly ensuring that the detergent is skin-friendly and in line with the concept of green chemistry.

[0020] In summary, the synergist forms a multi-level synergistic network through the solubilization of α-hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl), the emulsification of triethanolamine dodecylbenzenesulfonate, and the dispersion and antibacterial synergistic effect of modified silicone, ultimately achieving a comprehensive breakthrough in the detergency, stability, antibacterial, and environmental protection performance of the detergent.

[0021] Preferably, the preparation method of the modified silicone includes the following steps:

[0022] S61: According to the mass parts: Add 60 parts of octamethylcyclotetrasiloxane to 130 parts of water, heat up to 80 - 85 °C, then add 11 parts of γ-aminopropylmethyldiethoxysilane, 4 - 4.5 parts of dodecylbenzenesulfonic acid, and 0.3 part of emulsifier OP-10, react at 80 - 85 °C for 12 - 16 h, after cooling, adjust the pH to 7 with 20% ammonia water, centrifuge and remove the solvent to obtain an intermediate product;

[0023] S62: According to the mass parts: Blend polyethylene glycol glycidyl ether with the intermediate product, heat to 72 °C and react for 1 h to obtain the modified silicone.

[0024] By adopting the above technical solution, first, octamethylcyclotetrasiloxane reacts with the amino-silane coupling agent γ-aminopropylmethyldiethoxysilane, and octamethylcyclotetrasiloxane and the amino-silane coupling agent γ-aminopropylmethyldiethoxysilane undergo ring-opening polymerization to obtain an intermediate product introduced with amino groups. Then, the amino groups in the intermediate product react with polyethylene glycol glycidyl ether containing epoxy groups to achieve the grafting of alkoxy polyether segments, introducing a large number of amino groups and alkoxy long chains into the hydrophobic octamethylcyclotetrasiloxane, achieving hydrophilic modification and endowing it with weak cationicity. Thereby, the emulsification and dispersion effects of the detergent composition are greatly improved, the product stability is enhanced, making the product not easy to layer and having a better detergency effect. At the same time, the modified silicone can make the fungicide better adhere to the surface of the object to be cleaned, making the fungicide have a higher penetration force to bacterial cells, and can more efficiently destroy the structures such as the outer shell and proteins in the cells, inhibiting its growth and reproduction, and enhancing the antibacterial effect.

[0025] Preferably, in step S62, the mass parts ratio of polyethylene glycol glycidyl ether to the intermediate product is 10:70 - 75.

[0026] Preferably, the chelating agent is one of disodium ethylenediaminetetraacetate and sodium citrate.

[0027] Preferably, the preservative is sodium benzoate.

[0028] In a second aspect, the present application provides a method for preparing a detergent composition containing sodium dodecylbenzenesulfonate, adopting the following technical solution:

[0029] As a general technical concept, the present application also provides the method for preparing the above-mentioned detergent composition containing sodium dodecylbenzenesulfonate, including the following steps:

[0030] S101: According to parts by mass, put deionized water and sodium lauryl polyoxyethylene ether sulfate into a stirring tank, and stir for 10 - 15 minutes at a rotation speed of 500 - 600 r / min;

[0031] S102: According to parts by mass, then slowly put fatty alcohol polyoxyethylene ether, sodium dodecylbenzenesulfonate, amphoteric surfactant, synergist, triethanolamine, sodium carbonate and chelating agent into the stirring tank in sequence, and stir for 10 - 15 minutes at a rotation speed of 800 - 1000 r / min;

[0032] S103: According to parts by mass, put bactericide and preservative into the stirring tank, and stir for 30 minutes at a rotation speed of 1200 r / min to obtain the detergent composition containing sodium dodecylbenzenesulfonate.

[0033] In summary, the beneficial technical effects of the present application are as follows:

[0034] 1. Mild degreasing and decontamination: By selecting mild surfactant components such as sodium lauryl polyoxyethylene ether sulfate and fatty alcohol polyoxyethylene ether, and by adding special components such as modified silicone, the detergent composition has good degreasing effect and mildness. These components can effectively remove grease and stains, and are mild and non - irritating to clothes and skin.

[0035] 2. Excellent antibacterial effect: Utilize the synergistic effect of pomegranate peel extract and tetradecyl methyldihydroxyethyl ammonium bromide to improve the antibacterial effect of the detergent. The polyphenols and tannins in pomegranate peel extract have natural antibacterial properties, while tetradecyl methyldihydroxyethyl ammonium bromide, as a cationic surfactant, has bactericidal and antistatic effects.

[0036] 3. Improved stability: Through the introduction of amphoteric surfactant and the application of modified silicone, the stability and service performance of the detergent composition are improved. Amphoteric surfactant can adsorb anions and cations simultaneously, enhancing the stability of the detergent. Modified silicone, by introducing amino group and alkoxy long chain, improves the emulsification and dispersion effect of the product, and at the same time enhances the stability of the product.

[0037] 4. Environmentally Friendly: All ingredients in this application are environmentally friendly and safe. Ingredients such as pomegranate peel extract and modified silicone are either naturally derived or specially treated, making them friendly to both the human body and the environment. Furthermore, by optimizing the formula ratio, the negative impact of the detergent on the environment during use is minimized. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be described in detail below in conjunction with the examples and preparation examples, but it will be understood by those skilled in the art that the following examples and preparation examples are only used to illustrate the present application and should not be considered to limit the scope of the present application. In the examples and preparation examples, if specific conditions are not specified, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. The reagents or instruments used are conventional products that can be purchased commercially if the manufacturer is not specified.

[0039] In the following examples and preparation examples, 1 part means 100 g.

[0040] Preparation Example 1 Preparation of pomegranate peel extract

[0041] The preparation method of pomegranate peel extract comprises the following steps:

[0042] S31, drying the pomegranate peel, crushing it with a high-speed grinder and passing it through an 80-mesh sieve to obtain pomegranate peel powder;

[0043] S32. Mix 10 parts of pomegranate peel powder and 200 parts of distilled water, based on their weight, and ultrasonicate at 500 W and 73° C. for 1.5 h. Then, remove the pomegranate peel residue by vacuum filtration, and collect the filtrate to obtain an extract.

[0044] S33. According to the mass fraction, adjust the pH value of 100 parts of the extract to 3 with 10% acetic acid, heat it to 38°C, add 2 parts of activated carbon for decolorization for 38 minutes, and then filter it. Concentrate the filtered extract by reduced pressure rotary evaporation to 55 times (initial volume) to obtain pomegranate peel extract.

[0045] Preparation Example 2 Preparation of amphoteric surfactant

[0046] The preparation method of the amphoteric surfactant comprises the following steps:

[0047] S41. Under nitrogen protection, 21.34 parts of dimethyl behenyl tertiary amine were added to the reactor by weight, followed by 30 parts of acetone. After stirring at 25° C. for 7 minutes, 6.46 parts of 1,3-dichloro-2-propanol were added. After mixing, the reaction system was heated to 78° C. and reacted for 9 hours. After the reaction was completed, the solvent was removed by rotary evaporation, and recrystallization was performed using ethyl acetate 5 times to obtain an intermediate.

[0048] S42. By mass parts, under nitrogen protection, 22.24 parts of the intermediate are mixed evenly with 35 parts of tetrahydrofuran at 25 °C, then added into a reactor. Then, 5.60 parts of chlorosulfonic acid are mixed evenly with 22 parts of tetrahydrofuran and slowly added into the reactor. After reacting for 4.5 h, a saturated aqueous solution of sodium hydroxide is slowly added to adjust the pH to 8.7. Then, under reduced pressure, the solvent is removed by rotary evaporation, refluxed in ethanol for 0.8 h, the inorganic salts are removed by filtration, and recrystallized with acetone three times to obtain the amphoteric surfactant.

[0049] Preparation Example 3 Preparation of Modified Organosilicon

[0050] A method for preparing modified organosilicon includes the following steps:

[0051] S61. By mass parts: 60 parts of octamethylcyclotetrasiloxane are added to 130 parts of water, heated to 83 °C, then 11 parts of γ-aminopropylmethyldiethoxysilane, 4.3 parts of dodecylbenzenesulfonic acid and 0.3 part of emulsifier OP-10 are added, and reacted at 84 °C for 14 h. After cooling, the pH is adjusted to 7 with 20% ammonia water, centrifuged, and the solvent is removed to obtain an intermediate product;

[0052] S62. By mass parts: 10 parts of polyethylene glycol diglycidyl ether are blended with 73 parts of the intermediate product, heated to 72 °C and reacted for 1 h to obtain the modified organosilicon. Example 1

[0053] A detergent composition containing sodium dodecylbenzenesulfonate, by mass parts, includes the following preparation raw materials: 3 parts of sodium lauryl polyoxyethylene ether sulfate, 3 parts of fatty alcohol polyoxyethylene ether, 8 parts of sodium dodecylbenzenesulfonate, 6 parts of amphoteric surfactant, 3.5 parts of synergist, 2.6 parts of bactericide, 2 parts of triethanolamine, 0.5 part of sodium carbonate, 0.3 part of disodium ethylenediaminetetraacetate, 0.3 part of sodium benzoate, 65 parts of deionized water. Among them, the bactericide is composed of tetradecylmethyldihydroxyethyl ammonium bromide and pomegranate peel extract in a mass ratio of 3:7, and the synergist is prepared by mixing α-hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl), triethanolamine dodecylbenzenesulfonate and modified organosilicon in a mass ratio of 3:4:5;

[0054] The preparation method of the above detergent composition containing sodium dodecylbenzenesulfonate includes the following steps:

[0055] S101. By mass parts: Deionized water and sodium lauryl polyoxyethylene ether sulfate are put into a stirring tank and stirred at a speed of 500 r / min for 15 minutes;

[0056] S102. By mass parts: Then, slowly add fatty alcohol polyoxyethylene ether, sodium dodecylbenzenesulfonate, amphoteric surfactant, synergist, triethanolamine, sodium carbonate, and disodium ethylenediaminetetraacetate into the stirring tank in sequence, and stir for 15 minutes at a rotation speed of 800 r / min;

[0057] S103. By mass parts: Add the bactericide and sodium benzoate into the stirring tank, and stir for 30 minutes at a rotation speed of 1200 r / min to obtain the detergent composition containing sodium dodecylbenzenesulfonate. Example 2

[0058] A detergent composition containing sodium dodecylbenzenesulfonate, by mass parts, includes the following preparation raw materials: 5 parts of sodium lauryl ether sulfate, 4 parts of fatty alcohol polyoxyethylene ether, 12 parts of sodium dodecylbenzenesulfonate, 8 parts of amphoteric surfactant, 4.5 parts of synergist, 3 parts of bactericide, 4 parts of triethanolamine, 1 part of sodium carbonate, 0.5 part of sodium citrate, 0.5 part of sodium benzoate, and 70 parts of deionized water. Among them, the bactericide is composed of tetradecyl methyl dihydroxyethyl ammonium bromide and pomegranate peel extract in a mass ratio of 3:7, and the synergist is prepared by mixing α-hexyl-ω-hydroxy poly(oxy-1,2-ethanediyl), triethanolamine dodecylbenzenesulfonate, and modified silicone in a mass ratio of 3:4:5;

[0059] The preparation method of the above detergent composition containing sodium dodecylbenzenesulfonate includes the following steps:

[0060] S101. By mass parts: Add deionized water and sodium lauryl ether sulfate into the stirring tank, and stir for 10 minutes at a rotation speed of 600 r / min;

[0061] S102. By mass parts: Then, slowly add fatty alcohol polyoxyethylene ether, sodium dodecylbenzenesulfonate, amphoteric surfactant, synergist, triethanolamine, sodium carbonate, and sodium citrate into the stirring tank in sequence, and stir for 10 minutes at a rotation speed of 1000 r / min;

[0062] S103. By mass parts: Add the bactericide and sodium benzoate into the stirring tank, and stir for 30 minutes at a rotation speed of 1200 r / min to obtain the detergent composition containing sodium dodecylbenzenesulfonate. Example 3

[0063] A detergent composition containing sodium dodecylbenzenesulfonate, comprising the following raw materials, calculated by weight: 4 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 3.4 parts of fatty alcohol polyoxyethylene ether, 10 parts of sodium dodecylbenzenesulfonate, 7 parts of amphoteric surfactant, 4 parts of synergist, 2.8 parts of fungicide, 2.4 parts of triethanolamine, 0.7 part of sodium carbonate, 0.4 part of disodium ethylenediaminetetraacetic acid, 0.4 part of sodium benzoate, and 67 parts of deionized water, wherein the fungicide is composed of tetradecylmethyldihydroxyethylammonium bromide and pomegranate peel extract in a weight ratio of 3:7, and the synergist is prepared by mixing α-hexyl-ωhydroxypoly(ethylene oxide-1,2-yl), triethanolamine dodecylbenzenesulfonate, and modified silicone in a weight ratio of 3:4:5.

[0064] The preparation method of the detergent composition containing sodium dodecylbenzenesulfonate comprises the following steps:

[0065] S101. Add deionized water and sodium polyoxyethylene fatty alcohol ether sulfate into a mixing tank according to parts by mass, and stir at a speed of 550 r / min for 13 minutes;

[0066] S102, according to the mass parts: then slowly add fatty alcohol polyoxyethylene ether, sodium dodecylbenzene sulfonate, amphoteric surfactant, synergist, triethanolamine, sodium carbonate and disodium edetate into the mixing tank in this order, and stir at a speed of 900 r / min for 12 minutes;

[0067] S103. Add the fungicide and sodium benzoate into a stirring tank according to parts by mass, and stir at a speed of 1200 r / min for 30 minutes to prepare a detergent composition containing sodium dodecylbenzenesulfonate.

[0068] Comparative Example 1

[0069] The same as Example 3, except that an equal amount of cocamidopropylamine oxide is used instead of the amphoteric surfactant.

[0070] Comparative Example 2

[0071] The same as Example 3, except that the synergist is α-hexyl-ω hydroxy poly (oxy-1,2-ethylenediyl).

[0072] Comparative Example 3

[0073] The same as Example 3, except that the synergist is triethanolamine dodecylbenzenesulfonate.

[0074] Comparative Example 4

[0075] The same as Example 3, except that the synergist is modified silicone.

[0076] Comparative Example 5

[0077] Same as Example 3, except that the bactericide is tetradecyl methyldiethanol ammonium bromide.

[0078] Comparative Example 6

[0079] Same as Example 3, except that the bactericide is pomegranate peel extract.

[0080] Performance Test

[0081] Samples were taken from the detergent compositions containing sodium dodecylbenzenesulfonate prepared in Examples 1 - 3 and Comparative Examples 1 - 6, and the following tests were carried out. Three parallel samples were tested in each group, and the results were averaged.

[0082] Detergency performance test: The detergency performance was evaluated according to the foam level method and the arbitration method in GB / T 9985 "Detergents for Handwashing Dishes", and the number of dishes washed and the oil removal rate data of each example were recorded. The obtained data were respectively calculated with the number of dishes washed and the oil removal rate data of the national standard dishwashing detergent. A ratio greater than 1 indicates that the detergency performance is better than that of the national standard dishwashing detergent; a ratio less than 1 indicates that the detergency performance is weaker than that of the national standard dishwashing detergent. The test results are shown in Table 1.

[0083] Antibacterial performance test: Referring to the method of suspension quantitative bactericidal test in "Disinfection Technical Specification" 2002 Edition - 2.1.1.7.4, the antibacterial test was carried out on the sample stock solution for 15 minutes. The bacterial strains were Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Aspergillus niger. The test results are shown in Table 1.

[0084] Irritation test: Referring to the test method described in "Application of Zein Method in the Study of Shampoo Irritation" (Journal of Daily Chemical Industry, December 2021, authors: Deng Zhengqiao, Liu Congying): The test sample was prepared into an aqueous solution with an active content of 0.20%, and the pH was adjusted to 6 ± 0.15 with citric acid. Take 50 g of the solution, add 0.2 - 0.5 g of Zein (zein, value a), stir magnetically at room temperature for 2 h, then stand for 1.5 h, filter by suction, place the undissolved Zein in an oven at 40 °C for 3 days, weigh the amount of Zein after drying (value b), calculate the mass of the dissolved Zein, and the sample irritation is expressed by the Zein value. The calculation formula is: Zein value (g / g) = (a - b) / 0.625. The lower the Zein value, the lower the irritation. The test results are shown in Table 1.

[0085] Table 1 Performance Test

[0086]

[0087] Analyzing the data in Table 1, it can be seen that:

[0088] 1) The detergent compositions containing sodium dodecylbenzenesulfonate prepared in Examples 1 - 3 have excellent degreasing and antibacterial effects, and are mild, friendly to humans and the environment.

[0089] 2) Through the comparative analysis of the performance of the detergent compositions containing sodium dodecylbenzenesulfonate prepared by combining Example 3 and Comparative Example 1, it is shown that the zwitterionic surfactant prepared in this application not only improves the degreasing effect, antibacterial effect and low irritation of the detergent, but also acts synergistically with other components to enhance the overall washing performance and user experience.

[0090] 3) Through the comparative analysis of the performance of the detergent compositions containing sodium dodecylbenzenesulfonate prepared by combining Example 3 and Comparative Examples 2 - 4, it is shown that the synergist is prepared by mixing α - hexyl - ω - hydroxy poly(oxy - 1,2 - ethanediyl), triethanolamine dodecylbenzenesulfonate and modified silicone in a mass ratio of 3:4:5. By their combined action, a multi - level synergistic network is formed, ultimately achieving a comprehensive breakthrough in the detergency, antibacterial property and mildness of the detergent.

[0091] 4) Through the comparative analysis of the performance of the detergent compositions containing sodium dodecylbenzenesulfonate prepared by combining Example 3 and Comparative Examples 5 - 6, it is shown that the bactericide is composed of tetradecylmethyldihydroxyethyl ammonium bromide and pomegranate peel extract in a mass ratio of 3:7. Tetradecylmethyldihydroxyethyl ammonium bromide: As a cationic surfactant, it has strong bactericidal and antistatic effects. Pomegranate peel extract: Contains active ingredients such as polyphenolic compounds and tannins, and has antioxidant and antibacterial effects. Tetradecylmethyldihydroxyethyl ammonium bromide and pomegranate peel extract act together to provide a mild and effective antibacterial effect. Tetradecylmethyldihydroxyethyl ammonium bromide reduces the generation of static electricity and reduces dust deposition. The pomegranate peel extract is mild and non - irritating, friendly to humans and the environment. These components synergistically improve the comprehensive performance of the detergent, including cleaning effect, antibacterial ability and use safety.

[0092] The above examples are only used to explain and illustrate the technical solutions of this application, not to limit it. Although the above examples have specifically described this application, those skilled in the art should understand that the specific implementation manners of this application can still be modified or equivalently replaced. Any modification and equivalent replacement without departing from the spirit and scope of this application should be covered within the protection scope of this application.

Claims

1. A detergent composition containing sodium dodecylbenzenesulfonate, characterized in that The preparation comprises the following raw materials, calculated by mass: 3-5 parts of sodium fatty alcohol polyoxyethylene ether sulfate, 3-4 parts of fatty alcohol polyoxyethylene ether, 8-12 parts of sodium dodecylbenzene sulfonate, 6-8 parts of amphoteric surfactant, 3.5-4.5 parts of synergist, 2.6-3 parts of bactericide, 2-4 parts of triethanolamine, 0.5-1 part of sodium carbonate, 0.3-0.5 parts of chelating agent, 0.3-0.5 parts of preservative, and 65-70 parts of deionized water, wherein the bactericide is composed of tetradecylmethyl dihydroxyethyl ammonium bromide and pomegranate peel extract; the amphoteric surfactant is prepared using behenyldimethyl tertiary amine, 1,3-dichloro-2-propanol, and chlorosulfonic acid as raw materials; The synergist is prepared by mixing α-hexyl-ω hydroxy poly (oxy-1,2-ethylenediyl), triethanolamine dodecylbenzenesulfonate and modified silicone in a mass ratio of 3:4:5; The preparation method of the modified silicone comprises the following steps: S61. Add 60 parts of octamethylcyclotetrasiloxane to 130 parts of water, raise the temperature to 80-85° C., then add 11 parts of γ-aminopropylmethyldiethoxysilane, 4-4.5 parts of dodecylbenzenesulfonic acid, and 0.3 parts of emulsifier OP-10, react at 80-85° C. for 12-16 hours, cool, adjust the pH to 7 with 20% ammonia water, centrifuge, and remove the solvent to obtain an intermediate product; S62. According to the mass fractions, polyethylene glycol glycidyl ether and the intermediate product are mixed, heated to 72° C. and reacted for 1 hour to obtain modified silicone.

2. The detergent composition containing sodium dodecylbenzenesulfonate according to claim 1, characterized in that: The tetradecylmethyl dihydroxyethyl ammonium bromide and the pomegranate peel extract are composed in a mass ratio of 3:

7.

3. The detergent composition containing sodium dodecylbenzenesulfonate according to claim 1, characterized in that: The preparation method of the pomegranate peel extract comprises the following steps: S31, drying the pomegranate peel, crushing it with a high-speed grinder and passing it through an 80-mesh sieve to obtain pomegranate peel powder; S32. Mix 10 parts of pomegranate peel powder and 200 parts of distilled water, according to their weight ratios, and ultrasonicate at 500 W and 73° C. for 1-2 h. Then, remove the pomegranate peel residue by vacuum filtration, and collect the filtrate to obtain an extract. S33. According to the mass fraction, adjust the pH value of 100 parts of the extract to 3 with 10% acetic acid, heat it to 35-40°C, add 2 parts of the extract and decolorize it with activated carbon for 35-40 minutes, then filter it, and concentrate the filtered extract by 50-60 times under reduced pressure and rotary evaporation to obtain pomegranate peel extract.

4. The detergent composition containing sodium dodecylbenzenesulfonate according to claim 1, characterized in that: The preparation method of the amphoteric surfactant comprises the following steps: S41. Under nitrogen protection, 21.34 parts of behenyldimethyl tertiary amine were added to a reactor by weight, followed by 30 parts of acetone. After stirring at 25° C. for 6-8 minutes, 6.46 parts of 1,3-dichloro-2-propanol were added. After mixing evenly, the reaction system was heated to 75-80° C. and reacted for 8-10 hours. After the reaction was completed, the solvent was removed by rotary evaporation, and recrystallization was performed using ethyl acetate 5 times to obtain an intermediate. S42. According to the mass parts, under nitrogen protection, 22.24 parts of the intermediate were mixed with 35 parts of tetrahydrofuran at 25°C, and then added to the reactor. Then, 5.60 parts of chlorosulfonic acid were mixed with 22 parts of tetrahydrofuran and slowly added to the reactor. After the reaction was completed for 4-5 hours, a saturated aqueous solution of sodium hydroxide was slowly added to adjust the pH to 8.5-9. Then, the solvent was removed by rotary evaporation, and the mixture was refluxed in ethanol for 0.5-1 hour. The inorganic salt was removed by filtration, and recrystallized three times using acetone to obtain an amphoteric surfactant.

5. The detergent composition containing sodium dodecylbenzenesulfonate according to claim 1, characterized in that: In step S62, the mass ratio of the polyethylene glycol glycidyl ether to the intermediate product is 10:70-75.

6. The detergent composition containing sodium dodecylbenzenesulfonate according to claim 1, characterized in that: The chelating agent is one of disodium edetate and sodium citrate.

7. The detergent composition containing sodium dodecylbenzenesulfonate according to claim 1, characterized in that: The preservative is sodium benzoate.

8. A method for preparing a detergent composition containing sodium dodecylbenzenesulfonate according to any one of claims 1 to 7, characterized in that: The following steps are involved: S101. Add deionized water and sodium polyoxyethylene fatty alcohol ether sulfate into a mixing tank according to parts by mass, and stir at a speed of 500-600 r / min for 10-15 minutes; S102, according to the mass parts: then slowly add fatty alcohol polyoxyethylene ether, sodium dodecylbenzene sulfonate, amphoteric surfactant, synergist, triethanolamine, sodium carbonate and chelating agent into the mixing tank in this order, and stir at a speed of 800-1000 r / min for 10-15 minutes; S103. Add a fungicide and a preservative into a stirring tank according to their weight proportions, and stir the mixture at a speed of 1200 r / min for 30 minutes to prepare a detergent composition containing sodium dodecylbenzenesulfonate.

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