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CN-122012189-A - Foamless electrochemical laundry detergent and preparation method thereof

CN122012189ACN 122012189 ACN122012189 ACN 122012189ACN-122012189-A

Abstract

The invention relates to a foamless electrochemical laundry detergent and a preparation method thereof, and relates to the technical field of cleaning. The liquid laundry detergent disclosed by the invention is prepared from zirconium oxychloride, terephthalic acid and other raw materials in specific parts by weight through unique process steps of preparation, mixing and the like of special-structure metal-organic framework catalytic particles, biodegradable ionic liquid electrolyte and multifunctional composite additives, and the liquid laundry detergent prepared by the invention has the advantages of high efficiency, cleanliness, environmental protection, safety, multifunctional integration and the like, realizes convenient rinsing by virtue of a foamless design, ensures the stability by cooperation of all the components, has scientific and strict preparation process, ensures excellent, stable and reliable product performance, and meets the market demand of novel liquid laundry detergent.

Inventors

  • TANG XIAOHUI
  • CHENG XIAOPING

Assignees

  • 上海心动能科技有限公司

Dates

Publication Date
20260512
Application Date
20251216

Claims (10)

  1. 1. The preparation method of the foamless electrochemical laundry detergent is characterized by comprising the following steps of: (1) Mixing zirconium oxychloride, terephthalic acid and N, N-dimethylformamide to react and obtain Zr-MOFs crystals, carbonizing the Zr-MOFs crystals at a high temperature in nitrogen, and performing acid etching after carbonization to obtain metal-organic framework catalytic particles with special structures; (2) Mixing 1-methylimidazole with 2-bromopropionic acid to obtain a mixed solution A, carrying out reflux reaction on the mixed solution A in acetonitrile solution to obtain an intermediate, mixing the intermediate with L-sodium lactate to obtain a mixed solution B, carrying out reaction on the mixed solution B in ethanol solution, and carrying out rotary evaporation and recrystallization purification to obtain 1-methyl-3- (2-amino-3-carboxypropyl) imidazole lactate ionic liquid; (3) Weighing carboxymethyl-beta-cyclodextrin and nano zinc oxide, mixing, grinding and sieving to obtain a mixture, adding an intelligent pH responsive polymer into the mixture, and performing ultrasonic dispersion to obtain the multifunctional composite additive; (4) Sequentially adding the metal-organic framework catalytic particles with the special structure, the 1-methyl-3- (2-amino-3-carboxypropyl) imidazole lactate ionic liquid and the multifunctional composite additive into water, continuously stirring and heating to react, thus obtaining the foamless electrochemical laundry detergent.
  2. 2. The method for preparing a bubble-free electrochemical laundry detergent according to claim 1, wherein in the step (1), the weight ratio of zirconium oxychloride, terephthalic acid and N, N-dimethylformamide is 3-7:7-14:8-21.
  3. 3. The preparation method of the foamless electrochemical laundry detergent according to claim 1, wherein the pressure of the mixing reaction in the step (1) is 5-10 MPa, the temperature is 120-150 ℃ and the time is 12-20 h; The heating rate of the high-temperature carbonization is 5-10 ℃ per minute, the carbonization temperature is 800-1000 ℃, and the heat preservation time is 2-4 hours; The solution used for acid etching is dilute hydrochloric acid, the concentration of the dilute hydrochloric acid is 0.1mol/L, the temperature is 60-80 ℃, and the etching time is 4-6 hours.
  4. 4. The preparation method of the foamless electrochemical laundry detergent according to claim 1 is characterized in that in the step (2), the weight ratio of the 1-methylimidazole to the 2-bromopropionic acid in the mixed solution A is 3.2-5.8:2.8-6.3, and the weight ratio of the intermediate to the L-sodium lactate in the mixed solution B is 5:0.6-2.6.
  5. 5. The preparation method of the foamless electrochemical laundry detergent according to claim 1, wherein the reflux reaction in the step (2) is carried out at a temperature of 35-45 ℃ for 12-24 hours, and the rotary evaporation reaction time is 8-12 hours.
  6. 6. The preparation method of the bubble-free electrochemical laundry detergent according to claim 5, wherein in the step (2), the concentration of the acetonitrile solution is 0.2mol/L, the mass ratio of the acetonitrile solution to the mixed solution A is 1:2-4, the concentration of the ethanol solution is 0.1mol/L, and the mass ratio of the ethanol solution to the mixed solution B is 1:8-12.
  7. 7. The preparation method of the foamless electrochemical laundry detergent according to claim 1, wherein in the step (3), the weight ratio of the carboxymethyl-beta-cyclodextrin, the nano zinc oxide and the intelligent pH responsive polymer is 6-9:4-12:0.01-0.09.
  8. 8. The preparation method of the foamless electrochemical laundry detergent according to claim 1, wherein in the step (4), the mass ratio of the metal-organic framework catalytic particles with the special structure, the 1-methyl-3- (2-amino-3-carboxypropyl) imidazole lactate ionic liquid and the multifunctional composite additive is 1:0.2-0.5:0.3-0.8; The addition amount of the water is 4.5-8.5 times of the total mass of the metal-organic framework catalytic particles with the special structure, the 1-methyl-3- (2-amino-3-carboxypropyl) imidazole lactate ionic liquid and the multifunctional composite additive.
  9. 9. The preparation method of the foamless electrochemical laundry detergent according to claim 1, wherein the temperature after temperature rise in the step (4) is 80-120 ℃, the pressure of the reaction is 8-15 MPa, and the time is 8-12 h.
  10. 10. A bubble-free electrochemical laundry detergent prepared by the preparation method of any one of claims 1 to 9.

Description

Foamless electrochemical laundry detergent and preparation method thereof Technical Field The invention relates to the technical field of cleaning, in particular to a foamless electrochemical laundry detergent and a preparation method thereof. Background In the current society, with the pursuit of people for life quality, the performance of laundry detergent is expected to be increased increasingly. Although the traditional liquid laundry detergent can meet the basic cleaning requirement, the traditional liquid laundry detergent gradually exposes a plurality of defects when facing to various complex stains and environmental protection, health and other requirements. The core detersive ingredients of conventional laundry detergents are mainly surfactants, however, the detersive power of surfactants appears to be a major factor in the face of such things as industrial stains containing silicones, food stains rich in polysaccharide proteins, and mixed stains formed by prolonged wear. In addition, the traditional laundry detergent may contain fluorescent whitening agent, phosphorus auxiliary agent and other components, so that the traditional laundry detergent is difficult to biodegrade, can cause persistent pollution to the environment, and also can remain on clothes to threaten the health of human bodies. Moreover, the traditional laundry detergent has single function, and cannot meet diversified demands of consumers on clothes sterilization, mite removal, static resistance and the like. Along with the enhancement of environmental awareness and the development of science and technology, a novel laundry detergent which can efficiently clean various stubborn stains, has environmental protection and health characteristics and has rich functions is urgently needed in the market. Disclosure of Invention In order to solve the technical problems, the invention aims to provide a foamless electrochemical laundry detergent and a preparation method thereof. The liquid laundry detergent disclosed by the invention is prepared from zirconium oxychloride, terephthalic acid and other raw materials in specific parts by weight through unique process steps of preparation, mixing and the like of special-structure metal-organic framework catalytic particles, biodegradable ionic liquid electrolyte and multifunctional composite additives, and the liquid laundry detergent prepared by the invention has the advantages of high efficiency, cleanliness, environmental protection, safety, multifunctional integration and the like, realizes convenient rinsing by virtue of a foamless design, ensures the stability by cooperation of all the components, has scientific and strict preparation process, ensures excellent, stable and reliable product performance, and meets the market demand of novel liquid laundry detergent. The technical scheme for solving the technical problems is as follows: The first object of the invention is to provide a preparation method of a foamless electrochemical laundry detergent, which comprises the following steps: (1) Mixing zirconium oxychloride, terephthalic acid and N, N-dimethylformamide to react and obtain Zr-MOFs crystals, carbonizing the Zr-MOFs crystals at a high temperature in nitrogen, and performing acid etching after carbonization to obtain metal-organic framework catalytic particles with special structures; (2) Mixing 1-methylimidazole with 2-bromopropionic acid to obtain a mixed solution A, carrying out reflux reaction on the mixed solution A in acetonitrile solution to obtain an intermediate, mixing the intermediate with L-sodium lactate to obtain a mixed solution B, carrying out reaction on the mixed solution B in ethanol solution, and carrying out rotary evaporation and recrystallization purification to obtain 1-methyl-3- (2-amino-3-carboxypropyl) imidazole lactate ionic liquid; (3) Weighing carboxymethyl-beta-cyclodextrin and nano zinc oxide, mixing, grinding and sieving to obtain a mixture, adding an intelligent pH responsive polymer into the mixture, and performing ultrasonic dispersion to obtain the multifunctional composite additive; (4) Sequentially adding the metal-organic framework catalytic particles with the special structure, the 1-methyl-3- (2-amino-3-carboxypropyl) imidazole lactate ionic liquid and the multifunctional composite additive into water, continuously stirring and heating to react, thus obtaining the foamless electrochemical laundry detergent. The invention has the beneficial effects that the high-efficiency performance of the foamless electrochemical laundry detergent is ensured by accurately preparing each key component step by step. The preparation process of the metal-organic framework catalytic particles with the special structure can obtain high-activity catalytic particles, provides guarantee for high-efficiency cleaning, can ensure the biodegradability and stability of the biodegradable ionic liquid electrolyte through synthesis, enables the components to be fully mixed