Efficient detergent containing dodecylbenzene sulfonic acid and preparation method thereof

Abstract

The invention relates to the field of daily chemical products, and particularly discloses an efficient detergent containing dodecylbenzene sulfonic acid and a preparation method of the efficient detergent. The efficient detergent containing dodecylbenzene sulfonic acid comprises the following raw materials in parts by weight: 5-8 parts of dodecylbenzene sulfonic acid; 4 to 7 parts of fatty alcohol-polyoxyethylene ether; 5 to 6 parts of alkyl dimethyl betaine; 3-8 parts of cocoanut fatty acid diethanolamide; 3-5 parts of hydrophobic modified adsorption filler; 3-6 parts of a chelating agent; 1-3 parts of a defoaming agent; 4 to 8 parts of carboxymethyl chitosan-polyethyleneimine hydrogel modified silica gel particles; 80 to 95 parts of water; the preparation method comprises the following steps: mixing the components according to the formula, and stirring to obtain the efficient detergent. The efficient detergent has the advantages that the stain removal capacity is high, stains cannot be secondarily deposited on clothes, and the antibacterial effect is achieved.

Description

Technical Field

[0001] This application relates to the technical field of daily chemical products, and specifically relates to a high-efficiency detergent containing dodecylbenzenesulfonic acid and a preparation method thereof. Background Art

[0002] Detergents mainly include washing powder, soap, laundry detergent, etc. Detergents can quickly decompose dirt and have become essential consumer goods for the people.

[0003] According to the existing relevant technology, Chinese Patent Application CN201210578246.8 discloses a high-efficiency detergent, which is made from the following raw materials in parts by weight: 15-25 parts of melilotus officinalis, 15-20 parts of fatty alcohol polyoxyethylene ether, 15-20 parts of polyoxyethylene ether sulfate, 2-6 parts of sodium silicate, 3-5 parts of a mixture of monoethanolamine and triethanolamine, 1-3 parts of a mixture of pectinase and oxidase, 20-25 parts of glycerol, and 25-30 parts of ethanol.

[0004] This kind of detergent can quickly and efficiently remove oil stains, sweat stains and other pollutants attached to clothes, improving the washing effect on ordinary clothes. However, although the detergent can quickly remove stains and has a certain cleaning effect, the stains cannot be adsorbed after being washed off and will adhere to the clothes again, greatly reducing the cleaning effect. Moreover, it does not have an antibacterial effect during washing, so bacteria are likely to adhere to and parasitize on the clothes, causing harm to the skin.

[0005] In view of the above-mentioned related technology, the inventor finds it necessary to provide a high-efficiency detergent that can effectively remove oil stains and has an antibacterial effect. Summary of the Invention

[0006] In order to improve the oil stain removal ability of the detergent, prevent stains from redepositing, and have an antibacterial function, this application provides a high-efficiency detergent containing dodecylbenzenesulfonic acid and a preparation method thereof.

[0007] In a first aspect, this application provides a high-efficiency detergent containing dodecylbenzenesulfonic acid, adopting the following technical solution: A high-efficiency detergent containing dodecylbenzenesulfonic acid includes the following raw materials in parts by weight: 5-8 parts of dodecylbenzenesulfonic acid; 4-7 parts of fatty alcohol polyoxyethylene ether; 5-6 parts of alkyl dimethyl betaine; 3-8 parts of coconut oil fatty acid diethanolamide; 3-5 parts of adsorption filler; 3-6 parts of chelating agent; 1-3 parts of defoaming agent; 4-8 parts of carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles; 80-95 parts of water; The carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles include the following raw materials: 1-2 parts of carboxymethyl chitosan, 1-2 parts of polyethyleneimine, and 0.2-0.4 parts of silica particles.

[0008] By adopting the above technical solution, surfactants such as dodecylbenzenesulfonic acid, fatty alcohol polyoxyethylene ether, alkyl dimethyl betaine, and coconut oil fatty acid diethanolamide are arranged in an oriented manner on the liquid surface, reducing the liquid surface tension and weakening the cohesion between water molecules, making it easier for water to wet the clothes; during the washing process, the hydrophobic ends of the surfactants adsorb oil stains, thus forming emulsion droplets and wrapping the stains, dispersing them in water, which helps to peel the oil stains from the clothes; in the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles, carboxymethyl chitosan has antibacterial properties, and adding carboxymethyl chitosan can form a protective layer on the clothes surface, which is not easily eroded by germs; polyethyleneimine can damage the bacterial membrane, further enhancing the antibacterial effect; the carboxymethyl groups introduced into carboxymethyl chitosan dissociate hydrogen ions in aqueous solution, while polyethyleneimine is rich in amino groups with a large number of positive charges, so polyethyleneimine can form a polyelectrolyte complex hydrogel with carboxymethyl chitosan through electrostatic attraction. The hydrogel formed by the two has strong water resistance and viscosity. Therefore, during clothes washing, the silica particles can adhere to the clothes. The silica particles have a relatively smooth touch. Therefore, the hydrogel not only endows the detergent with strong antibacterial ability, but also can adhere the silica particles, thereby improving the smoothness of the clothes surface and playing an auxiliary role in smoothing the clothes; when the hydrophobic modified adsorption filler contacts the stains, due to the hydrophobicity of the filler, it is easy to combine with hydrophobic stains, thereby separating the stains from the clothes, reducing the residue of stains on the clothes, and the hydrophobic modified adsorption filler can be evenly distributed in the detergent, increasing the contact area with the stains and improving the washing efficiency.

[0009] Optionally, the preparation method of the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles is as follows: S1: Stir and mix the aqueous solution of carboxymethyl chitosan and the aqueous solution of polyethyleneimine, immerse them in liquid nitrogen for 20 - 30 min, freeze-dry, and grind to obtain hydrogel powder; S2: Add the hydrogel powder to PBS buffer solution, add silica particles, and stir until gelation to obtain carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles.

[0010] By adopting the above technical solutions, carboxymethyl chitosan not only has excellent water solubility, but also has excellent biocompatibility and biodegradability, enhancing the antibacterial performance of the clothing. Moreover, carboxymethyl chitosan and polyethyleneimine form a composite hydrogel with adhesiveness, good resistance to water flow impact and strong antibacterial ability through electrostatic interaction. When the hydrogel powder is mixed and stirred with silica particles until gelation occurs, the hydrogel can wrap around the surface of the silica particles. When washing the clothing, the adhesion of the hydrogel can attach the silica particles to the surface of the clothing, and the water resistance enables the silica particles not to be easily washed off during the washing process, thereby attaching a layer of silica particles to the surface of the clothing, increasing the smoothness of the clothing and giving the washed clothing a higher smooth touch.

[0011] Optionally, the silica particles are treated as follows: Using the silica particles as the receiving substrate, electrospraying treatment is carried out on a chitosan solution with a concentration of 0.4 - 0.6 wt%, and then drying. During the electrospraying treatment, the voltage is 6.5 - 7.5 kV, the liquid flow rate is 2 - 4 μL / min, and the receiving distance is 5 - 6 cm.

[0012] By adopting the above technical solutions, the chitosan solution forms microparticles after electrospraying treatment. Since chitosan has special film-forming properties and biocompatibility, it has a good finishing effect on fabrics. After being wrapped on the surface of the silica particles, and then mixed and stirred with the hydrogel powder until gelation, it adheres to the surface of the clothing under the adhesion of the hydrogel, further improving the smoothness of the clothing and reducing the degree of pilling and fuzzing of the clothing. Moreover, chitosan has cationic properties and can inhibit bacterial growth. Therefore, adsorbing the electrosprayed chitosan microparticles on the surface of the silica particles not only makes the clothing have better smoothness and increases the wearing comfort, but also can further enhance the antibacterial effect of the detergent.

[0013] Optionally, the hydrophobic modified adsorption filler is prepared by the following method: After the adsorption filler is treated with acid, it is ultrasonically mixed evenly with a silane coupling agent solution, filtered, dried, then soaked in a gallic acid solution, stirred evenly, filtered and dried.

[0014] By adopting the above technical solution, under acidic conditions, the active groups on the surface of the adsorption filler are activated, and the introduced hydroxyl groups serve as the anchoring sites for the silane coupling agent. Using 3-aminopropyltriethoxysilane (APTES) as the silane coupling agent to modify the surface of the adsorption filler and aminate the adsorption filler. Adding gallic acid can covalently couple with the aminated adsorption filler. The carboxyl group of gallic acid and the amino group on the surface of the adsorption filler form an amide bond. Gallic acid contains polyphenol groups and is a natural polyphenol compound. It has antioxidant and antibacterial abilities, and also has a certain degree of hydrophobicity. Therefore, while improving the antibacterial ability of the adsorption filler, gallic acid can also increase the dispersibility and stability of the adsorption filler. The adsorption filler after adsorbing stains can be better detached from the clothes, avoiding the redeposition of the washed stains on the clothes.

[0015] Optionally, the adsorption filler is one or more of clay, bentonite, and activated carbon.

[0016] By adopting the above technical solution, as an adsorption filler, it has a large specific surface area and a suitable pore structure, has a strong adsorption force in liquids, does not chemically react with the adsorbate and the medium, and can quickly achieve substance separation.

[0017] Optionally, the chelating agent is one or more of ethylenediaminetetraacetic acid, nitrilotriacetic acid, and sodium citrate.

[0018] By adopting the above technical solution, the chelating agent can adsorb hard water ions such as calcium and magnesium in water to form stable complexes, enabling the surfactant in the detergent to play a more effective role and improving the washing effect of the detergent.

[0019] Optionally, the defoaming agent is selected as polyethylene glycol ether.

[0020] By adopting the above technical solution, polyethylene glycol ether, as a suspending and dispersing agent, has good ability to suspend and disperse dirt. When polyethylene glycol ether combines with the surfactant, it can significantly improve the cleaning effect of the detergent, destroy the stability of the foam, reduce the generation of foam during laundry, and increase the easy-rinsing effect.

[0021] In the second aspect, the present application provides a preparation method of a high-efficiency detergent containing dodecylbenzenesulfonic acid, adopting the following technical solution: A preparation method of a high-efficiency detergent containing dodecylbenzenesulfonic acid includes the following steps: Mix water, dodecylbenzenesulfonic acid, fatty alcohol polyoxyethylene ether, alkyl dimethyl betaine, coconut oil fatty acid diethanolamide, hydrophobic modified adsorption filler, carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles, chelating agent, and defoaming agent according to the formula and then stir to obtain the high-efficiency detergent.

[0022] By adopting the above technical solution, the raw materials are fully mixed and stirred, making the components of the detergent more uniform, obtaining a highly efficient detergent with antibacterial and good detergency effects and avoiding secondary contamination of clothes by stains, and making the clothes softer and smoother.

[0023] In summary, the present application has the following beneficial effects: 1. Since the present application uses raw materials such as dodecylbenzenesulfonic acid, fatty alcohol polyoxyethylene ether, alkyl dimethyl betaine, coconut oil fatty acid diethanolamide, adsorption filler, carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles, etc. to prepare a highly efficient detergent, since the surfactants such as dodecylbenzenesulfonic acid used can reduce the surface tension of the liquid and weaken the intermolecular cohesive force, the oil stains on the clothes form emulsion droplets and are thus peeled off from the clothes. The carboxymethyl chitosan-polyethyleneimine hydrogel complex has certain adhesion and antibacterial effects, so that while the detergent has a good bactericidal effect, it can also combine the silica particles with the clothes surface, increasing the smoothness of the clothes surface and the wearing comfort.

[0024] 2. In the present application, it is preferably to use chitosan electrosprayed microparticle modified silica particles. Chitosan has excellent film-forming property and biocompatibility. After being wrapped by chitosan, the smoothness of the clothes can be improved, the pilling of the clothes can be reduced, and chitosan has a good bactericidal effect, enhancing the antibacterial effect of the detergent on the clothes.

[0025] 3. In the present application, gallic acid is used to pretreat the adsorption filler. Adding gallic acid can covalently couple with the amino-functionalized adsorption filler. Gallic acid has antibacterial and antioxidant capabilities, and at the same time increases the dispersibility and stability of the pretreated adsorption filler, avoiding secondary pollution of the clothes during washing. Specific embodiments

[0026] The following examples further illustrate the present application in detail.

[0027] Preparation Examples 1-6 of Carboxymethyl Chitosan-Polyethyleneimine Hydrogel Modified Silica Particles Preparation Example 1: Add 2 g of carboxymethyl chitosan to 38 g of water to prepare a carboxymethyl chitosan aqueous solution; add 2 g of polyethyleneimine to 38 g of water to prepare a polyethyleneimine aqueous solution; stir and mix the carboxymethyl chitosan solution and the polyethyleneimine solution, immerse it in liquid nitrogen for 20 min, freeze-dry, and grind to obtain a hydrogel powder; add the hydrogel powder to 10 times its mass of PBS buffer solution, add 0.4 g of silica particles, and stir until gelation to obtain carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles. The silica particles are obtained by grinding silica particles through a 200-mesh sieve. The silica particles are selected from Shenzhen Jialong Plastic Raw Materials, and the product number is TE-35A.

[0028] Preparation Example 2: 1 g of carboxymethyl chitosan was added to 19 g of water to prepare an aqueous carboxymethyl chitosan solution; 1 g of polyethyleneimine was added to 19 g of water to prepare an aqueous polyethyleneimine solution; the carboxymethyl chitosan solution and the polyethyleneimine solution were stirred and mixed, immersed in liquid nitrogen for 20 min, freeze-dried, and ground to obtain a hydrogel powder; the hydrogel powder was added to 10 times its mass of PBS buffer, and 0.2 g of silica particles were added, and stirred until gelation occurred. The silica particles were obtained by grinding silica particles through a 200-mesh sieve. The silica particles were selected from Shenzhen Jialong Plastic Raw Materials, and the product number was TE-35A.

[0029] Preparation Example 3: The difference from Preparation Example 1 is that the added silica particles were pretreated by the following method: ① Preparation of 0.4 wt% chitosan solution: 0.4 g of chitosan was weighed using an electronic balance and placed in a round-bottom flask, and then 99.6 g of 1.0% dilute acetic acid was added, and stirred and dissolved until clear to prepare a 0.4 wt% chitosan solution; ② Electrospraying of 0.4 wt% chitosan solution: After sucking 4 mL of chitosan solution into a syringe, it was fixed on a syringe pump. The voltage was 7.5 kV and the liquid flow rate was 4 μL / min. When the atomization state was stable, the silica particles were placed directly below the metal capillary tip, the receiving distance was 6 cm, the receiving time was 1 h, and after receiving, it was dried.

[0030] Preparation Example 4: The difference from Preparation Example 3 is that the parameters were different during the pretreatment of the silica particles. The specific method is as follows: ① Preparation of 0.6 wt% chitosan solution: 0.6 g of chitosan was weighed using an electronic balance and placed in a round-bottom flask, and then 99.4 g of 1.0% dilute acetic acid was added, and stirred and dissolved until clear to prepare a 0.6 wt% chitosan solution; ② Electrospraying of 0.6 wt% chitosan solution: After sucking 4 mL of chitosan solution into a syringe, it was fixed on a syringe pump. The voltage was 7.5 kV and the liquid flow rate was 4 μL / min. When the atomization state was stable, the silica particles were placed directly below the metal capillary tip, the receiving distance was 6 cm, the receiving time was 1 h, and after receiving, it was dried.

[0031] Preparation Example 5: The difference from Preparation Example 3 is that the parameters were different during the pretreatment of the silica particles. The specific method is as follows: ① Preparation of 0.2 wt% chitosan solution: 0.2 g of chitosan was weighed using an electronic balance and placed in a round-bottom flask, and then 99.8 g of 1.0% dilute acetic acid was added, and stirred and dissolved until clear to prepare a 0.2 wt% chitosan solution; ②Electrospraying 0.2 wt% chitosan solution: After sucking 4 mL of chitosan solution into a syringe, it was fixed on a syringe pump. The voltage was 7.5 kV and the liquid flow rate was 4 μL / min. When the atomization state was stable, the silica gel particles were placed directly below the tip of the metal capillary. The receiving distance was 6 cm and the receiving time was 1 h. After receiving, it was dried.

[0032] Preparation Example 6: The difference from Preparation Example 3 is that the parameters are different during the pretreatment of the silica gel particles. The specific method is as follows: ①Preparation of 0.8 wt% chitosan solution: Weigh 0.8 g of chitosan using an electronic balance and put it into a round-bottom flask. Then add 100.0 g of 1.0% dilute acetic acid, stir and dissolve until clear to prepare a 0.8 wt% chitosan solution; ②Electrospraying 0.8 wt% chitosan solution: After sucking 4 mL of chitosan solution into a syringe, it was fixed on a syringe pump. The voltage was 7.5 kV and the liquid flow rate was 4 μL / min. When the atomization state was stable, the silica gel particles were placed directly below the tip of the metal capillary. The receiving distance was 6 cm and the receiving time was 1 h. After receiving, it was dried.

[0033] Example 1: A high-efficiency detergent containing dodecylbenzenesulfonic acid. The raw material dosages are shown in Table 1. The carboxymethyl chitosan-polyethyleneimine hydrogel-modified silica gel particles were prepared from Preparation Example 1. The preparation method of the hydrophobic modified adsorption filler is as follows: Activated carbon was slowly added to a concentrated nitric acid solution, stirred at 60 °C for 24 h, filtered and dried; the dried adsorption filler was dispersed in anhydrous toluene and mixed evenly, 3-aminopropyltriethoxysilane was added, and after ultrasonic treatment for 30 min, it was filtered and dried. The dosage of 3-aminopropyltriethoxysilane was 0.1 of the mass of the adsorption filler; the dodecylbenzenesulfonic acid was selected from Shandong Zhenglian Chemical Co., Ltd., with the product number 07, the fatty alcohol polyoxyethylene ether was selected from Guangzhou Maotuo Biotechnology Co., Ltd., with the model AEO-9, the coconut oil fatty acid diethanolamide was selected from Hubei Langbowan Biomedicine Co., Ltd., with the product number EF234243, the alkyl dimethyl betaine was octadecyl dimethyl betaine, selected from Jinan Xiangfeng Weiye Chemical Co., Ltd., with the model BS-18, the chelating agent was ethylenediaminetetraacetic acid, and the defoaming agent was polyethylene glycol ether, selected from Guangzhou Bolun Chemical Co., Ltd., with the model peg400.

[0034] The preparation method of the above high-efficiency detergent containing dodecylbenzenesulfonic acid includes the following steps: Mix water, dodecylbenzenesulfonic acid, fatty alcohol polyoxyethylene ether, alkyl dimethyl betaine, coconut oil fatty acid diethanolamide, adsorption filler, carboxymethyl chitosan-polyethyleneimine hydrogel-modified silica gel particles, chelating agent, and defoaming agent, and then stir to obtain the high-efficiency detergent.

[0035] Table 1 Raw material dosages of the high-efficiency detergent in Examples 1-5

[0036] Example 2: A highly efficient detergent containing dodecylbenzenesulfonic acid, the raw material dosages of which are shown in Table 1. The carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles are made from Preparation Example 2. The preparation method of the hydrophobic modified adsorption filler is as follows: Activated carbon is slowly added to a concentrated nitric acid solution, stirred at 60°C for 24 h, filtered and then dried; the dried adsorption filler is dispersed in anhydrous toluene and mixed evenly, 3-aminopropyltriethoxysilane is added, filtered and dried after ultrasonic treatment for 30 min. The dosage of the silane coupling agent is 0.1 of the mass of the adsorption filler. The dodecylbenzenesulfonic acid is selected from Shandong Zhenglian Chemical Co., Ltd., with the product number 07. The fatty alcohol polyoxyethylene ether is selected from Guangzhou Metor Biotechnology Co., Ltd., with the model AEO-9. The coconut oil fatty acid diethanolamide is selected from Hubei Langbowan Biomedicine Co., Ltd., with the product number EF234243. The alkyl dimethyl betaine is octadecyl dimethyl betaine, selected from Jinan Xiangfeng Weiye Chemical Co., Ltd., with the model BS-18. The chelating agent is ethylenediaminetetraacetic acid, and the defoaming agent is polyethylene glycol ether, selected from Guangzhou Bolun Chemical Co., Ltd., with the model peg400.

[0037] The preparation method of the above-mentioned highly efficient detergent containing dodecylbenzenesulfonic acid comprises the following steps: Mix water, dodecylbenzenesulfonic acid, fatty alcohol polyoxyethylene ether, alkyl dimethyl betaine, coconut oil fatty acid diethanolamide, adsorption filler, carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles, chelating agent and defoaming agent, and then stir to obtain the highly efficient detergent.

[0038] Example 3: A highly efficient detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that the dosages of the raw materials used are different, and the raw material dosages are shown in Table 1.

[0039] Example 4: A highly efficient detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that the dosages of the raw materials used are different, and the raw material dosages are shown in Table 1.

[0040] Example 5: A highly efficient detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that the dosages of the raw materials used are different, and the raw material dosages are shown in Table 1.

[0041] Example 6: A highly efficient detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles used are made from Preparation Example 3.

[0042] Example 7: A highly efficient detergent containing dodecylbenzenesulfonic acid, which is different from Example 6 in that the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles used are made from Preparation Example 4.

[0043] Example 8: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 6 in that the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles used are made from Preparation Example 5.

[0044] Example 9: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 6 in that the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles used are made from Preparation Example 6.

[0045] Example 10: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 6 in that the hydrophobic modified adsorption filler used is made by the following method: ① Slowly add activated carbon to concentrated nitric acid solution, stir at 60 °C for 24 h, filter and dry; ② Disperse the dried adsorption filler in anhydrous toluene and mix evenly, add 3-aminopropyltriethoxysilane, filter and dry after ultrasonic treatment for 30 min. The amount of 3-aminopropyltriethoxysilane is 0.1% of the mass of the activated carbon; ③ Weigh an appropriate amount of gallic acid solid, dissolve it in distilled water, slowly add the activated carbon obtained in ② to the gallic acid solution, stir evenly and dry. The mass of gallic acid is 0.5% of the mass of the activated carbon. The activated carbon material is selected from Henan Yunlan Water Treatment Materials Co., Ltd., and the particle size is 200 mesh.

[0046] The preparation method of the above high-efficiency detergent containing dodecylbenzenesulfonic acid includes the following steps: Mix water, dodecylbenzenesulfonic acid, fatty alcohol polyoxyethylene ether, alkyl dimethyl betaine, coconut oil fatty acid diethanolamide, adsorption filler, carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles, chelating agent, and defoaming agent, and then stir to obtain the high-efficiency detergent.

[0047] Comparative Example 1: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that silica particles are not added to the carboxymethyl chitosan-polyethyleneimine hydrogel. The preparation method of the used carboxymethyl chitosan-polyethyleneimine hydrogel is as follows: Add 2 g of carboxymethyl chitosan to 38 g of water to prepare a carboxymethyl chitosan aqueous solution; add 2 g of polyethyleneimine to 38 g of water to prepare a polyethyleneimine aqueous solution; stir and mix the carboxymethyl chitosan solution and the polyethyleneimine solution, immerse them in liquid nitrogen for 20 min, freeze-dry, and grind to obtain a hydrogel powder; add the hydrogel powder to 10 times its mass of PBS buffer solution and stir until gelation occurs.

[0048] Comparative Example 2: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that polyethyleneimine modified silica particles are used to replace the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles in equal amount. The preparation method of the used polyethyleneimine modified silica particles is as follows: Add 2 g of polyethyleneimine to 38 g of water to prepare an aqueous solution of polyethyleneimine; slowly add 0.4 g of silica particles to the aqueous solution of polyethyleneimine, stir at 60 °C for 30 min, filter and dry.

[0049] Comparative Example 3: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that carboxymethyl chitosan-modified silica particles are used to replace carboxymethyl chitosan-polyethyleneimine hydrogel-modified silica particles in equal amounts. The preparation method of the carboxymethyl chitosan-modified silica particles used is as follows: Add 2 g of carboxymethyl chitosan to 38 g of water to prepare an aqueous solution of carboxymethyl chitosan; slowly add 0.4 g of silica particles to the aqueous solution of carboxymethyl chitosan, stir at 60 °C for 30 min, filter and dry.

[0050] Comparative Example 4: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that the amount of carboxymethyl chitosan-polyethyleneimine hydrogel-modified silica particles used is 2 kg.

[0051] Comparative Example 5: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that the amount of carboxymethyl chitosan-polyethyleneimine hydrogel-modified silica particles used is 10 kg.

[0052] Comparative Example 6: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that the addition amount of the hydrophobic modified adsorbent filler used is 1 kg.

[0053] Comparative Example 7: A high-efficiency detergent containing dodecylbenzenesulfonic acid, which is different from Example 1 in that the addition amount of the hydrophobic modified adsorbent filler used is 8 kg.

[0054] Prepare high-efficiency detergents according to the methods in the examples and comparative examples, and perform performance tests according to the following methods: Detergency test: It is determined according to the method specified in GB / T 13174-2008 "Determination of Detergency and Recirculating Washing Performance of Detergents for Clothing Fabrics". The preparation of hard water refers to GB / T 6367-1997. By measuring the washing conditions of the sample on carbon black soiled cloth, protein soiled cloth and sebum soiled cloth, the detergency of the sample is determined. The test conditions are that the mass fraction of the detergent in the aqueous solution is 0.2%, the water hardness is 250 mg / L, and the temperature is 40 ± 0.5 °C. The test results are shown in Table 2.

[0055] Table 2 Test Results of Detergency Performance of Detergents

[0056] Combined with the data in Table 2 and the dosages of raw materials in Examples 1-9, the adsorption filler used in Example 10 was pretreated with a silane coupling agent and gallic acid. The pretreated adsorption filler had better dispersibility and stability, and the best decontamination ability. The adsorption fillers used in Comparative Examples 1-4 were the same as those used in Example 1, so the decontamination performances were similar. However, due to the increase in the dosage of carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles in Comparative Example 5, the adhesion amount of silica particles on the clothes increased, which affected the decontamination effect of the clothes and led to a worse decontamination effect. The difference between Comparative Example 6 and Example 1 was that the added amount of the adsorption filler used was 1 kg. As can be seen from Table 2, after the dosage of the adsorption filler decreased, the decontamination performance of the detergent decreased. The difference between Comparative Example 7 and Example 1 was that the added amount of the adsorption filler used was 8 kg. When the dosage of the adsorption filler increased, the decontamination effect did not increase accordingly.

[0057] Antibacterial test: According to QB / T 2738-2005, the antibacterial performance of the detergent was determined. Using the undiluted detergent as the test object, with an action time of 30 min, the suspension quantitative method was used to determine the antibacterial rate of the detergent against Staphylococcus aureus. The experiment was repeated 3 times, and the average value was taken as the final result. The results are shown in Table 3.

[0058] Table 3 Test results of the antibacterial performance of the detergent

[0059] Combined with the data in Table 3 and the raw material dosages in Example 1, carboxymethyl chitosan and polyethyleneimine have dual antibacterial properties. Therefore, Example 1 has an obvious antibacterial effect. In Examples 2-5, the raw material dosages were adjusted. It can be seen that the antibacterial effects of Examples 2-5 decrease with the reduction of the dosage; the differences between Examples 6 and 7 and Example 1 are that the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles used were prepared in Preparation Example 3 and Preparation Example 4. After the silica particles were coated with chitosan particles, the antibacterial effect of chitosan further enhanced the antibacterial effect of the detergent; the differences between Examples 8 and 9 and Example 6 are that the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles used were prepared in Preparation Example 5 and Preparation Example 6, and the concentration of the chitosan solution was adjusted to decrease and increase. As can be seen from the table, the antibacterial ability of the detergent in Example 8 decreased slightly, but it was still better than the antibacterial effects of Examples 1-5. The antibacterial effect of Example 9 did not increase with the increase in the concentration of chitosan particles on the surface of the silica particles; the difference between Comparative Example 1 and Example 1 is that no silica particles were added, and the antibacterial properties of the detergent are not very different; the difference between Comparative Example 2 and Example 1 is that no carboxymethyl chitosan was added. As can be seen from the data, the antibacterial performance of Comparative Example 2 decreased significantly; the difference between Comparative Example 3 and Example 1 is that no polyethyleneimine was added. As can be seen from the data, Comparative Example 3 showed the same decrease in antibacterial performance as Comparative Example 2; the differences between Comparative Examples 4-5 and Example 1 are that the dosages of the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles used were adjusted. As can be seen from the data, whether the dosage was increased or decreased, the antibacterial effect was not as good as that of Example 6. And after reducing the dosage of the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles in Comparative Example 4, the antibacterial effect was lower than that of Example 1. After increasing the dosage of the carboxymethyl chitosan-polyethyleneimine hydrogel modified silica particles in Comparative Example 5, the antibacterial effect was slightly higher than that of Example 1.

[0060] Softness and smoothness performance test: Put 3-5 test pure cotton towels into a drum washing machine, add 5 ml of detergent, wash for 30 min under the same conditions, and repeat 20 times continuously. Take out and place them on a clothes hanger to dry naturally. Lay the standard towel and the test towels flat on the palms of the testers (10 people in total), and rub them on both cheeks with appropriate force or feel their softness and smoothness with hands at the same time. Compare with the standard towel and score their softness and smoothness (10 is the softest / smoothest, 1 is the hardest / roughest). Take the sum of the scores of 10 people. The results are shown in Table 4.

[0061] Table 4 Test results of the softness / smoothness performance of the detergent

[0062] According to the data in Table 4 and the dosages in Example 1, it can be seen that the silica particles have a certain smoothing effect, while the carboxymethyl chitosan-polyethyleneimine hydrogel has an adhesion effect and water flow resistance. The silica particles are adhered to the surface of the clothing. The softness and smoothness of the clothing in Example 1 are very high. The differences between Examples 2-5 and Example 1 are that the dosages of the raw materials used are adjusted, and the softening and smoothing effects of the clothing also decrease slightly with the decrease in the dosage of the raw materials.

[0063] The differences between Examples 6-7 and Example 1 are that the carboxymethyl chitosan-polyethyleneimine hydrogel-modified silica particles used are prepared from Preparation Example 3 and Preparation Example 4. From the data, it can be seen that the silica particles are wrapped with chitosan, further improving the softness of the clothing, and the smoothness of the clothing also increases due to the adhesion of the silica particles.

[0064] The differences between Examples 8-9 and Example 6 are that the carboxymethyl chitosan-polyethyleneimine hydrogel-modified silica particles used are prepared from Preparation Example 5 and Preparation Example 6, and the concentrations of the chitosan particles are respectively decreased and increased. Compared with Example 6, the softness and smoothness of the clothing in Example 8 slightly decrease, but are still slightly higher than those in Example 1. Compared with Example 6, the effect of Example 9 has little difference, indicating that wrapping the silica particles with a chitosan solution at an appropriate concentration can improve the smoothness of the clothing.

[0065] The difference between Comparative Example 1 and Example 1 is that no silica particles are added. From the data, it can be seen that the softness and smoothness of the clothing in Comparative Example 1 are the lowest; the difference between Comparative Example 2 and Example 1 is that no carboxymethyl chitosan is added. From the data, it can be seen that the softness and smoothness of the clothing in Comparative Example 2 slightly decrease compared with those in Example 1, but are still higher than the softness and smoothness of Comparative Example 1.

[0066] The difference between Comparative Example 3 and Example 1 is that no polyethyleneimine is added. After being washed with detergent, the softness and smoothness of the clothing are not high, but are slightly higher than those in Comparative Example 1, indicating that the lack of polyethyleneimine leads to a decrease in the adhesion amount of the silica particles and a decrease in the smoothness of the clothing after washing.

[0067] The differences between Comparative Examples 4-5 and Example 1 are that the dosages of the carboxymethyl chitosan-polyethyleneimine hydrogel-modified silica particles are decreased and increased. It can be seen that after adjusting the dosage, the softness and smoothness of the clothing in Comparative Example 4 are lower than those in Example 1, while the softness of the clothing in Comparative Example 5 slightly decreases compared with that in Example 1, and the smoothness slightly increases compared with that in Example 1.

[0068] The differences between Comparative Examples 6-7 and Example 1 are that the dosages of the hydrophobically modified adsorption filler are decreased and increased. It can be seen that the differences are not obvious compared with Example 1.

[0069] This specific embodiment is only an interpretation of the present application and does not limit the present application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. An efficient detergent containing dodecylbenzenesulfonic acid, characterized in that, It comprises the following raw materials in parts by weight: 5 - 8 parts of dodecylbenzenesulfonic acid; 4 - 7 parts of fatty alcohol polyoxyethylene ether; 5 - 6 parts of alkyl dimethyl betaine; 3 - 8 parts of coconut oil fatty acid diethanolamide; 3 - 5 parts of hydrophobically modified adsorption filler; 3 - 6 parts of chelating agent; 1 - 3 parts of defoamer; 4 - 8 parts of carboxymethyl chitosan - polyethyleneimine hydrogel modified silica particles; 80 - 95 parts of water; The carboxymethyl chitosan - polyethyleneimine hydrogel modified silica particles comprise the following raw materials in parts by weight: 1 - 2 parts of carboxymethyl chitosan, 1 - 2 parts of polyethyleneimine, and 0.2 - 0.4 parts of silica particles.

2. The high-efficiency detergent containing dodecylbenzenesulfonic acid according to claim 1, wherein: The preparation method of the carboxymethyl chitosan - polyethyleneimine hydrogel modified silica particles is as follows: S1: Stir and mix the aqueous solution of carboxymethyl chitosan and the aqueous solution of polyethyleneimine, immerse them in liquid nitrogen for 20 - 30 min, freeze - dry, and grind to obtain hydrogel powder; S2: Add the hydrogel powder into PBS buffer solution, add silica particles, and stir until gelation to obtain carboxymethyl chitosan - polyethyleneimine hydrogel modified silica particles.

3. The high-efficiency detergent containing dodecylbenzenesulfonic acid according to claim 2, characterized in that: The silica particles are processed as follows: Using silica particles as the receiving substrate, electro - atomize a chitosan solution with a concentration of 0.4 - 0.6 wt%, and then dry. During electro - atomization, the voltage is 6.5 - 7.5 kV, the liquid flow rate is 2 - 4 μL / min, and the receiving distance is 5 - 6 cm.

4. The high-efficiency detergent containing dodecylbenzenesulfonic acid according to claim 1, characterized in that: The hydrophobically modified adsorption filler is prepared by the following method: After the adsorption filler is treated with acid, it is ultrasonically mixed evenly with a silane coupling agent solution, filtered, dried, then soaked in a gallic acid solution, stirred evenly, filtered, and dried.

5. The high-efficiency detergent containing dodecylbenzenesulfonic acid according to claim 4, characterized in that: The adsorption filler is one or more of clay, bentonite, and activated carbon.

6. The high-efficiency detergent containing dodecylbenzenesulfonic acid according to claim 1, wherein: The chelating agent is one or more of ethylenediaminetetraacetic acid, nitrilotriacetic acid, and sodium citrate.

7. The high-efficiency detergent containing dodecylbenzenesulfonic acid according to claim 1, characterized in that: The defoamer is selected as polyethylene glycol ether.

8. The preparation method of the high-efficiency detergent containing dodecylbenzenesulfonic acid according to any one of claims 1 to 7, characterized in that: It includes the following steps: Mix water, dodecylbenzenesulfonic acid, fatty alcohol polyoxyethylene ether, alkyl dimethyl betaine, coconut oil fatty acid diethanolamide, hydrophobically modified adsorption filler, carboxymethyl chitosan - polyethyleneimine hydrogel modified silica particles, chelating agent, and defoamer according to the formula, and then stir to obtain a high - efficiency detergent.

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