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CN-122012186-A - Surfactant, preparation method and industrial cleaning agent

CN122012186ACN 122012186 ACN122012186 ACN 122012186ACN-122012186-A

Abstract

The invention relates to the technical field of industrial cleaning, and discloses a surfactant, a preparation method and an industrial cleaning agent, which comprise, by weight, 10-60 parts of nonionic polyoxyethylene fatty alcohol ether, 10-60 parts of anionic polyoxyethylene fatty alcohol ether sulfate, 5-40 parts of modified alkyl polyglucoside solution, 2-14 parts of an auxiliary agent and 10-40 parts of water, wherein the modified alkyl polyglucoside solution is obtained by etherification reaction of alkyl polyglucoside and halogenated acetate containing carboxymethyl functional groups under an alkaline condition. The invention can avoid gelation problem during high concentration compounding, and remarkably improve the stability and cleaning performance of the system.

Inventors

  • DU CHAOBO
  • CHAI SHOUQING
  • ZHANG XUEFENG
  • ZHOU YANG
  • QU HANQI
  • JIA XIAOQING

Assignees

  • 泰伦特生物工程股份有限公司

Dates

Publication Date
20260512
Application Date
20251226

Claims (10)

  1. 1. The surfactant is characterized by comprising the following components in parts by weight: 10-60 parts of nonionic polyoxyethylene fatty alcohol ether, 10-60 parts of anionic polyoxyethylene fatty alcohol ether sulfate, 5-40 parts of modified alkyl polyglucoside solution, 2-14 parts of auxiliary agent and 10-40 parts of water, wherein the modified alkyl polyglucoside solution is prepared by modifying alkyl polyglucoside with haloacetate containing carboxymethyl functional groups.
  2. 2. The surfactant of claim 1, wherein the hydrophobic group of the nonionic polyoxyethylene fatty alcohol ether is derived from a C 10 ～C 14 fatty alcohol, the average number of the added oxyethylenes is 3-9, the tail ends of the nonionic polyoxyethylene fatty alcohol ether are hydroxyl groups, the hydrophobic group of the anionic polyoxyethylene fatty alcohol ether sulfate is derived from a C 10 ～C 14 fatty alcohol, and the sulfate is an alkali metal salt or an ammonium salt.
  3. 3. The surfactant according to claim 1, wherein the preparation method of the modified alkyl polyglucoside solution comprises the steps of carrying out etherification reaction on alkyl polyglucoside and halogenated acetate containing carboxymethyl functional groups in water for 2-8 hours in the presence of an alkaline catalyst, wherein the reaction temperature is 40-80 ℃, the pH of a reaction system is 10-13, cooling the solution to 30-50 ℃ after the reaction is finished, and regulating the pH to 6.5-8.5 to obtain the modified alkyl polyglucoside solution.
  4. 4. A surfactant according to claim 3, wherein the molar ratio of the alkyl polyglycoside to the haloacetate containing a carboxymethyl functional group is 1 (0.5-1.0), the haloacetate containing a carboxymethyl functional group is sodium chloroacetate or potassium chloroacetate, and the alkaline catalyst is sodium hydroxide or potassium hydroxide, and the addition amount of the alkaline catalyst is 0.5-5.0wt% of the mass of the alkyl polyglycoside.
  5. 5. The surfactant according to claim 1, wherein the auxiliary agent comprises one or more of a water-soluble organic solvent, a dispersing agent and a preservative, wherein the water-soluble organic solvent is one or two of ethanol and isopropanol, the dispersing agent is sodium polyacrylate, and the preservative is phenoxyethanol.
  6. 6. A process for preparing a surfactant according to any one of claims 1 to 5, the preparation method is characterized by comprising the following steps: S1, mixing nonionic polyoxyethylene fatty alcohol ether, a modified alkyl polyglycoside solution and a first part of water at a temperature of 40-70 ℃, and stirring under a shearing condition to obtain a premix I; s2, mixing anionic polyoxyethylene fatty alcohol ether sulfate with a second part of water, stirring and dissolving at 25-50 ℃, and regulating the pH to 6.5-8.5 to obtain a pre-solution II; s3, adding the pre-solution II into the premix liquid I under the shearing condition at the temperature of 20-40 ℃ and keeping the pH value at 6.5-8.5 in the adding process to obtain a surfactant concentrate; S4, adding an auxiliary agent and the rest water into the concentrated solution, and curing at 20-35 ℃ to obtain the surfactant.
  7. 7. The method for preparing the surfactant according to claim 6, wherein the shearing condition in the step S1 is a rotating speed of 1000-3000 rpm and a stirring time of 10-60 min, the shearing condition in the step S3 is a rotating speed of 1000-3000 rpm, the adding rate of the pre-solution II is controlled to be 5-10% of the total adding amount/min, the adding time is 10-90 min, and the curing time in the step S4 is 24-48 h.
  8. 8. The method for preparing a surfactant according to claim 6, wherein the first partial amount of water in the step S1 is 30-50% of the total amount of water in the formulation, and the second partial amount of water in the step S2 is 30-40% of the total amount of water in the formulation.
  9. 9. An industrial cleaning agent comprising the surfactant according to any one of claims 1 to 5.
  10. 10. The industrial cleaning agent of claim 9, further comprising an alkaline builder, a complexing agent, and a rust inhibitor.

Description

Surfactant, preparation method and industrial cleaning agent Technical Field The invention relates to the technical field of industrial cleaning, in particular to a surfactant, a preparation method and an industrial cleaning agent. Background Industrial cleaning agents are widely used in the fields of metal processing, machine manufacturing, electronic components, precision instruments and the like for removing grease, particulate matters and inorganic dirt on surfaces. With the increasing strictness of environmental regulations and the increasing demands of industrial production on cleaning efficiency, the market presents higher challenges for the performance of industrial cleaning agents. The conventional industrial cleaning agent usually adopts a compound system of nonionic and anionic surfactants, but is easily influenced by calcium and magnesium ions in high-hardness water quality to reduce detergency and generate precipitation, meanwhile, the conventional Alkyl Polyglucoside (APG) is environment-friendly, but has weak hydrophilia, alkali resistance and dirt redeposition resistance, so that the application of the conventional Alkyl Polyglucoside (APG) in cleaning heavy oil stains is limited, in addition, in the preparation of the high-concentration compound system, the conventional process is extremely easy to cause a gel phenomenon, the viscosity of the system is suddenly increased, the uniform mixing is difficult, the prepared product often has the defects of poor low-temperature stability, easiness in layering after long-term storage and the like, and the requirements of modern industry on high-efficiency and stable cleaning agents cannot be met. Disclosure of Invention In view of the above, the invention aims to provide a surfactant, a preparation method and an industrial cleaning agent, which can avoid the gelation problem during high-concentration compounding and remarkably improve the stability and cleaning performance of a system. The invention solves the technical problems by the following technical means: In a first aspect, the invention provides a surfactant, which comprises the following components in parts by weight: 10-60 parts of nonionic polyoxyethylene fatty alcohol ether, 10-60 parts of anionic polyoxyethylene fatty alcohol ether sulfate, 5-40 parts of modified alkyl polyglucoside solution, 2-14 parts of auxiliary agent and 10-40 parts of water, wherein the modified alkyl polyglucoside solution is prepared by modifying alkyl polyglucoside with haloacetate containing carboxymethyl functional groups. Preferably, the hydrophobic group of the nonionic polyoxyethylene fatty alcohol ether is derived from C 10～C14 fatty alcohol, the average addition oxyethylene number is 3-9, the tail end of the nonionic polyoxyethylene fatty alcohol ether is hydroxyl, the hydrophobic group of the anionic polyoxyethylene fatty alcohol ether sulfate is derived from C 10～C14 fatty alcohol, and the sulfate of the anionic polyoxyethylene fatty alcohol ether sulfate is alkali metal salt or ammonium salt. According to the invention, the nonionic polyoxyethylene fatty alcohol ether, the anionic polyoxyethylene fatty alcohol ether sulfate and the carboxymethylation modified alkyl polyglucoside are compounded according to a specific proportion, and the three surfactants form a ternary composite micelle with compact structure and uniform interface arrangement on a molecular level by combining a sectional dissolution and controlled feeding process. The nonionic component provides flexible interface regulation and rapid wetting, the anionic component provides strong dirt removal and redeposition resistance, and the carboxymethylated alkyl polyglycoside obviously enhances the hydrophilicity and hard water resistance of the system through hydration and complexation of carboxyl, and helps to stabilize the mixed micelle structure of the nonionic polyoxyethylene fatty alcohol ether/anionic polyoxyethylene fatty alcohol ether sulfate. The small-particle-size composite micelle formed by process control has excellent interface stability, oil stain swelling capacity and dynamic structure retaining capacity, so that a highly stable and synergistically enhanced surfactant system is constructed. Preferably, the preparation method of the modified alkyl polyglucoside solution comprises the steps of carrying out etherification reaction on alkyl polyglucoside and halogenated acetate containing carboxymethyl functional groups in water for 2-8h in the presence of an alkaline catalyst, wherein the reaction temperature is 40-80 ℃, the pH of a reaction system is 10-13, cooling the solution to 30-50 ℃ after the reaction is finished, and regulating the pH to 6.5-8.5 to obtain the modified alkyl polyglucoside solution. Preferably, the molar ratio of the alkyl polyglycoside to the haloacetate containing the carboxymethyl functional group is 1 (0.5-1.0), the haloacetate containing the carboxymethyl functional group is sodium chloroacetate or pot