CN110628519A

CN110628519A - Water-based cleaning agent and preparation method and application thereof

Info

Publication number: CN110628519A
Application number: CN201910915889.9A
Authority: CN
Inventors: 余取民; 鲁双庆; 余夷希; 付鎏滢; 吴伟; 闵浪
Original assignee: Changsha University
Current assignee: Changsha University
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2019-12-31

Abstract

The water-based cleaning agent is prepared from a nonionic emulsifier, a nonionic penetrant, petroleum ether, ethylene glycol ethyl ether, propylene glycol propyl ether, triethanolamine, sodium metasilicate, sweet orange oil, peppermint oil, a defoaming agent, kasong and matrix tap water. The invention also comprises a preparation method of the water-based cleaning agent. The water-based cleaning agent is mainly applied to cleaning steel workpieces before coating and cleaning floors, furniture, doors and windows, kitchens, smoke exhaust ventilators and the like. The cleaning agent disclosed by the invention does not contain phosphorus, can be repeatedly utilized when being used for cleaning before coating of steel workpieces, has a good cleaning effect, and provides a good steel surface for the subsequent conversion coating generation treatment; when the cleaning agent is used for cleaning floors, furniture, doors and windows, kitchens and smoke exhaust ventilators, the effect is good.

Description

Water-based cleaning agent and preparation method and application thereof

Technical Field

The invention relates to the field of surface cleaning, in particular to a water-based cleaning agent and a preparation method and application thereof.

Background

The cleaning agent is used for cleaning greasy dirt on the surfaces of various materials, parts, equipment and the like so as to obtain clean surfaces. Oil stains include grease and dirt. The oil ester is insoluble in water and can be divided into mineral oil which can not be saponified and animal and vegetable oil which can be saponified. The dirt can be divided into water-soluble substances, water-insoluble compounds and fine particulate substances such as dust which can be dispersed in the water solution.

Depending on the composition of the cleaning agent, the cleaning agent is mainly classified into a strong alkali type, a solvent type and a water-based type.

The strong alkali type cleaning agent is composed of strong alkali, auxiliary agent and the like, mainly cleans animal and vegetable oil stains through saponification reaction, but has strong corrosivity, and can cause great stimulation and damage to human skin.

The solvent type cleaning agent consists of an organic solvent, an auxiliary agent and the like, and is used for cleaning oil stains by physical dissolution, the oil stains are quickly dissolved and removed, but the cost is high, and the solvent type cleaning agent is generally inflammable and explosive, or damages the environment or influences the human health.

The water-based cleaning agent generally comprises all or part of components such as a surfactant, an organic solvent, an acid, an alkali, a stabilizer, a bactericide, a chelating agent, a corrosion inhibitor, a thickening agent, a dye, a perfume and the like, can be used for cleaning oil stains by applying partial or all principles such as physical dissolution, physical dispersion, reaction and the like, and the using effect and the influence on the environment and human health depend on the specific components.

The cleaning agent may be classified into a dipping type, a spraying type, and a wiping type cleaning agent according to the cleaning method.

According to the cleaning temperature, the cleaning agent can be classified into a high temperature type (80-90 ℃), a medium temperature type (50-70 ℃), a low temperature type (30-50 ℃), and a normal temperature type (10-40 ℃).

According to the principle of cleaning greasy dirt, the cleaning agent can be divided into four classes of physical dissolution, physical dispersion, reaction type and comprehensive type cleaning agent.

Physical dissolving of oil stains comprises dissolving with organic solvents, dissolving with inorganic solvents such as water and the like. The organic solvent utilizes the principle of 'similar phase and dissolution' of the organic solvent to dissolve the oil ester; inorganic solvents such as water dissolve dirt by utilizing their own good dissolving ability, and generally do not dissolve oil esters.

The physical dispersion of the oil stains means that the adhesion capacity of the oil stains on the surface is weakened or destroyed by virtue of the physical and chemical activity of a surfactant and the like in the cleaning agent, molecules of the surfactant and the like enter the interface between the surface and the oil stains and generate directional adsorption, the oil stains are loosened and separated from the surface, and the oil stains separated from the surface are dispersed in a solution or enter micelles formed by the surfactant. The capability of physically dispersing and cleaning oil stains is related to the cleaning temperature, the higher the temperature is, the better the effect is, and the cleaning effect is poorer in winter.

The reactive cleaning of oil stain refers to cleaning oil stain through saponification reaction and non-saponification reaction. The saponification reaction is carried out by saponifying animal and vegetable oil with alkaline substances such as sodium hydroxide and sodium carbonate in the cleaning agent to convert water-insoluble oil into water-soluble soap and glycerol, and cleaning from surface. The saponification reaction is carried out at a pH > 8.5, the higher the temperature, the faster the reaction. The saponification reaction does not clean the mineral oil, the reaction rate is significantly related to the reaction temperature, and the lower the temperature or the shorter the reaction time, the poorer the cleaning effect. At high pH, the surface being cleaned is corroded, damaging the skin of the person. The cleaning by non-saponification reaction is to remove dirt by using a new compound generated from non-oil ester dirt such as acid and complexing agent.

The cleaning agent for cleaning by utilizing the single principle of physical dissolution, physical dispersion and reaction has unsatisfactory cleaning effect or poor cleaning effect on the oil stains comprising various oil esters and dirt, and can generate satisfactory effect only by integrating the principles of physical dissolution, physical dispersion and reaction and balancing the oil stain removal effect of physical dissolution, physical dispersion and reaction of the oil stains according to requirements.

Because of the corrosion prevention measures adopted during the manufacturing of the steel workpiece and the lubrication or pollution in the processing process, oil stains are bound to the surface of the steel workpiece. Mr. Chen Ke suggested in his work "Corrosion prevention Process for Metal surface" (ChenKe Ke, published by chemical industry Press in 2010, 6 months, 1 st edition, page 4) that the amount of oil on the surface of the steel workpiece should be less than 0.2 g/m²Otherwise, the quality of the paint film and the generation of a phosphating film and the like are influenced, so that the coating quality is influenced, and therefore, the oil stains on the surface of the steel need to be removed by using a cleaning agent in the treatment before the surface of the steel is coated.

The surfaces of floors, furniture, doors and windows, kitchens, smoke exhaust ventilators and the like are stuck with oil stains and dust, generate polymerization, breed bacteria and need to be cleaned frequently. The oil stain in the kitchen mainly comprises dust, oil smoke generated in the cooking process, oily polymer oxidized and polymerized in food oil at high temperature, and pollutants generated by the device in the kitchen, and is concentrated on a table top, a smoke exhaust ventilator, a gas stove, a ceramic tile and a wall in the kitchen through chemical action and physical action. Edible oil and dust are slowly oxidized and polymerized, and the more the edible oil and dust are accumulated, the more the edible oil and dust are adhered, the bacteria are bred, and peculiar smell is generated. Cooking methods, kinds of food oil, and cooking temperatures vary to generate different kinds of soot. The grease dirt in the kitchen is not easy to clean, and the requirement for cleaning the kitchen is higher and higher along with the continuous development of the society.

Since the century, the development of cleaning technology is fast, and a lot of normal-temperature water-based cleaning agents come out. However, the existing normal-temperature water-based cleaning agent has the following problems: (1) the cleaning effect of the single or comprehensive cleaning agent which is not comprehensive enough in cleaning principle or does not balance the degreasing effects of physical dissolution, physical dispersion and reaction according to the requirement is difficult to meet the requirement, for example, the steel surface is difficult to clean at normal temperature when the room temperature is lower in winter; (2) the floor and kitchen cleaning agent has poor effect, large pungent smell and even is toxic and flammable; (3) the cleaning agent has complex preparation or higher preparation cost, such as being prepared by pure water, or the cleaning agent obviously harms human skin or contains phosphorus which is harmful to the environment, and the like. Preparing pure water, which consumes energy and directly or indirectly generates pollutants; (4) so far, no report exists that a water-based cleaning agent can effectively remove kitchen oil dirt and remove polishing wax and mineral oil stains on metal workpieces; meanwhile, no report is made on a water-based cleaning agent having high detergency in a low-temperature environment.

Phosphate is the most elegant builder, however, phosphorus is also one of the most important elements causing eutrophication of water bodies. Eutrophication of water body, which is a slow-flow water body such as lakes, rivers, gulfs and the like, into which a large amount of nutrients such as nitrogen, phosphorus, potassium and the like required by organisms enter, causes rapid propagation of algae and other plankton, decreases the concentration of dissolved oxygen in the water body, deteriorates the water quality, causes death of a large amount of fishes and other organisms, and even red tide appears in thousands of square kilometers of area. Therefore, phosphorus can disrupt the ecological balance.

The prior water-based metal cleaner mostly selects phosphate as a builder, and the problem of eutrophic pollution is gradually revealed as the phosphorus-containing substance is discharged into the environment. CN104293498A discloses a preparation method of a kitchen cleaning agent, wherein the formula of the cleaning agent contains 2-5 parts of sodium tripolyphosphate (the total amount is not more than 224-302 parts). CN109440119A discloses a degreasing agent for cleaning oil stain on the surface of steel and a preparation method thereof, wherein the degreasing agent is prepared from 13.5-15.5% of alpha-olefin sodium sulfonate, 14.5-16.5% of fatty alcohol-polyoxyethylene ether, 22-24% of pentasodium phosphate, 1-2% of carboxymethyl cellulose, 24-26% of sodium sulfate, 15-16% of potassium hydroxide and 4.5-5.5% of sodium silicate. They contain phosphorus, and the phosphorus-containing wastewater produced after use pollutes the environment.

CN 104962943A discloses a non-phosphorus water-based degreasing agent and a preparation method and application thereof, wherein the non-phosphorus water-based degreasing agent is prepared from a non-ionic emulsifier, a non-ionic penetrant, sodium metasilicate, sodium carbonate, isopropanol, dichloromethane, ethylene glycol monoethyl ether, low-molecular sodium polyacrylate, a defoaming agent, triethanolamine and water. The phosphorus-free water-based degreasing agent is mainly applied to degreasing steel workpieces, and can not efficiently remove stains on floors, furniture, doors, windows, kitchens and smoke exhaust ventilators.

CN105754761A discloses a microemulsion neutral kitchen cleaning agent, which is prepared from 3-10 parts of nonionic surfactant, 2-4 parts of amphoteric surfactant, 1-2 parts of ammonium molybdate, 4-8 parts of oil-soluble solvent, 0.01-0.1 part of essence, 2-5 parts of lauric acid diethanolamide, 3-5 parts of lauric acid diethanolamide and 70-80 parts of deionized water. CN109609964A discloses a low-foam metal degreasing agent and a preparation method thereof, wherein the low-foam metal degreasing agent is prepared from 8-12 parts by mass of borax, 15-25 parts by mass of potassium hydroxide, 5-8 parts by mass of sodium carbonate, 6-8 parts by mass of sodium metasilicate pentahydrate, 2-4 parts by mass of sodium xylene sulfonate, 2-4 parts by mass of sodium gluconate, 2-4 parts by mass of sodium dodecyl sulfate, 3-6 parts by mass of triethanolamine and 34-60 parts by mass of deionized water. CN109536976A discloses a multifunctional degreasing agent, which is prepared from 1-3% of benzyl alcohol, 1-3% of ethylenediamine oleate, 3-8% of alkanolamine, 1-5% of sodium gluconate, 5-10% of potassium phosphate, 1-5% of fatty alcohol ether phosphate, 1-8% of fatty acid methyl ester ethoxylate sulfonate, 1-3% of glycol ether, 3-5% of sodium xylene sulfonate and 50-83% of deionized water. CN106480465B discloses an environment-friendly degreasing agent and a preparation method thereof, wherein the environment-friendly degreasing agent is prepared from 5-10 parts of sodium metasilicate pentahydrate, 2-5 parts of sodium lignosulfonate, 2-4 parts of sodium carbonate, 1-3 parts of alginate fiber, 1-2 parts of carboxymethyl cellulose, 2-4 parts of 4A zeolite, 0.5-1 part of nonylphenol polyoxyethylene ether, 0.5-1 part of cocamidopropyl amine oxide, 15-20 parts of sodium hydroxide, 0.1-0.3 part of squalane, 0.5-1 part of polyoxyethylene sorbitan monostearate, 1-2 parts of sodium citrate and 75-100 parts of distilled water. Energy is consumed and pollutants affecting the environment are generated when the deionized water is prepared, and a large amount of energy is consumed and pollutants affecting the environment are indirectly generated when the distilled water is prepared. The cleaning agent needs to be prepared by deionized water and distilled water, which indicates that the cleaning agent has higher requirement on water quality, and the cleaning effect can be influenced by the water quality due to the dissolution of tap water or dirt when the dirt is diluted.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art, and provides a water-based cleaning agent which does not contain phosphorus, has good cleaning effect on oil stains on the surfaces of steel and iron, and on the oil stains on the surfaces of various components of floors, furniture, doors and windows, kitchens and smoke exhaust ventilators even when the cleaning temperature is low in winter, gives consideration to batch oil stain cleaning and manual repair or large oil stain cleaning, and is safe and nontoxic.

The invention further aims to solve the technical problem of overcoming the defects in the prior art and provide a preparation method of the water-based cleaning agent, which is simple to operate and suitable for industrial production.

The technical scheme adopted by the invention for solving the technical problems is as follows: a water-based cleaning agent is prepared from nonionic emulsifier, nonionic penetrant, petroleum ether, ethylene glycol ethyl ether, propylene glycol propyl ether, triethanolamine, sodium metasilicate, sweet orange oil, oleum Menthae Dementholatum, defoamer, Kathon and tap water.

Further, the preferred contents of the components are as follows:

the nonionic emulsifier is 5-120 g/L;

the non-ionic penetrant is 5-100 g/L;

1-35 g/L of petroleum ether;

the ethylene glycol ethyl ether is 1-20 g/L;

1-20 g/L of propylene glycol propyl ether;

the triethanolamine content is 2-30 g/L;

the sodium metasilicate is 0.5-10 g/L;

0.5-8 g/L of disodium hydrogen citrate;

the isopropanol is 1-50 g/L;

0.1-2 g/L sweet orange oil;

0.1-2 g/L of peppermint oil;

the defoaming agent is 0.1-0.2 g/L;

the content of the kasong is 0.1-2 g/L;

the rest is tap water.

Further, the more preferable content of each component of the water-based cleaning agent is as follows:

the nonionic emulsifier is 18-100 g/L;

the non-ionic penetrant is 26-80 g/L;

the petroleum ether is 6-32 g/L;

the ethylene glycol ethyl ether is 6-50 g/L;

7-20 g/L of propylene glycol propyl ether;

the triethanolamine content is 3-30 g/L;

1-10 g/L of sodium metasilicate;

1-5 g/L disodium hydrogen citrate;

the isopropanol is 5-50 g/L;

0.1-2 g/L sweet orange oil;

0.1-2 g/L of peppermint oil;

the defoaming agent is 0.1-0.2 g/L;

the content of the kasong is 0.1-2 g/L;

the rest is tap water.

Further, the nonionic emulsifier is octyl phenol polyoxyethylene ether or nonyl phenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, and the HLB value is 10-14.

Further, the non-ionic penetrant is alkylphenol polyoxyethylene ether (JFC-1) or isomeric decyl alcohol polyoxyethylene ether, and the HLB value is 11-13.

Further, the sodium metasilicate is one or more of instant sodium metasilicate, anhydrous sodium metasilicate and sodium metasilicate pentahydrate.

Further, the defoaming agent is defoaming agent. Preferably FAG470 type organosilicon compound produced by Haian petrochemical plant of Jiangsu province.

The principle of the invention is as follows: the components of the invention are selected according to the cleaning principles of comprehensively utilizing physical dissolution, physical dispersion, physical and chemical reactions and the like, and finally optimized and determined through a large number of cleaning comparison tests of different cleaning objects at different temperatures.

Wherein, the main functions of the nonionic emulsifier are emulsification, penetration, wetting, dispersion and solubilization; the main functions of the nonionic penetrant are penetration, wetting, dispersion and emulsification; the petroleum ether has the main function of dissolving oil; propylene glycol propyl ether, ethylene glycol ethyl etherMainly improves the cleaning capability, and is added into a nonionic surfactant to improve the water solubility of the surfactant and remove the surfactant residue on the cleaned surface; triethanolamine can chelate Ca²⁺、Mg²⁺、Fe³⁺Metal ions and dirt are generated, so that the cleaning capability is improved, and metal corrosion is prevented; the sodium metasilicate mainly has the functions of descaling, emulsification, dispersion, wetting, permeation, pH value buffering, hard water softening and saponification and metal corrosion prevention; disodium hydrogen citrate can chelate Ca²⁺、Mg²⁺、Fe³⁺Metal ions and dirt are generated, and the cleaning capability is improved; the isopropanol is mainly used for being added into the nonionic surfactant, so that the water solubility of the surfactant can be improved, and surfactant residues and cleaning grease on the cleaned surface can be removed; the defoaming agent is used for eliminating redundant foams, so that the preparation and the use of the cleaning agent are facilitated; the main function of the kasong is that the active components of the kasong can penetrate the cell wall of the microorganism to enter the interior of the cell and are combined with the basic group on the nucleic acid (RNA and DNA) of the cell, thereby inhibiting or completely killing various microorganisms such as bacteria, fungi, yeasts and the like; the main functions of the mint oil and the sweet orange oil are to eliminate peculiar smell of the cleaning agent, generate fresh fragrance and improve the capability of dissolving oil. Researches show that the nonionic emulsifier, the nonionic penetrant, the petroleum ether, the propylene glycol propyl ether, the ethylene glycol ethyl ether, the triethanolamine, the sodium metasilicate and the isopropanol are used in a matching way, and the peppermint oil, the sweet orange oil and the petroleum ether are used in a matching way, so that the synergistic effect is good, and the effects of removing and cleaning dirt and eliminating peculiar smell at low temperature can be effectively improved.

The technical scheme adopted for further solving the technical problems is as follows: a preparation method of a water-based cleaning agent comprises the following steps: adding triethanolamine, disodium hydrogen citrate, anhydrous sodium metasilicate and defoaming agent into about 700 mL of tap water, and stirring for dissolving; and adding the evenly mixed solution of fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylates, isopropanol, ethylene glycol ethyl ether and propylene glycol propyl ether while stirring, then adding petroleum ether while stirring, then adding the karson, the sweet orange oil and the peppermint oil, fully stirring and dissolving until the solution is transparent, supplementing tap water to 1L, and evenly stirring to obtain the product.

The technical scheme adopted by the invention for further solving the technical problems is as follows:

(1) cleaning before coating of steel workpiece

The process for cleaning the surface of the steel workpiece by applying the water-based cleaning agent comprises the following steps: dipping the steel workpiece into the water-based cleaning agent at the temperature of 5-40 ℃ for pre-cleaning for 5-60 min, then washing with water, dipping the steel workpiece into the water-based cleaning agent at the temperature of 5-40 ℃ for cleaning for 5-60 min, and finally washing with water to generate a conversion film. When the oil stain is repaired and cleaned manually or the oil stain is cleaned manually on a large piece, the oil stain can be cleaned by cloth or after the cleaning agent is cleaned by cloth after being sprayed, and then the treatment such as generating a conversion film is carried out.

The water-based cleaning agent used for the pre-cleaning can be the water-based cleaning agent of the invention used in the cleaning process, and can also be the water-based cleaning agent of the invention which is not used.

The conversion film generation treatment can be carried out by using normal-temperature manganese-calcium phosphating solution disclosed in CN102747356B, and other existing disclosed phosphating methods are also suitable for the invention.

The purpose of setting the pre-cleaning procedure is as follows: 1) the cleaning agent containing oil stains and having reduced cleaning capability can be used to the best, and the repeated utilization is realized; 2) in winter with lower cleaning temperature, the 'pre-cleaning' procedure can remove partial oil stains on the surface of the workpiece, so that the oil hanging amount on the surface of the workpiece is obviously reduced, and the burden of the subsequent cleaning procedure is reduced; 3) when the oil stain on the surface of the workpiece is excessive, part of the oil stain on the surface of the workpiece can be removed in the pre-cleaning process, so that the cleaning effect is ensured, and the service life of the cleaning agent is prolonged.

Further, when rust exists on the surface of the steel body workpiece, before phosphorization, derusting and cleaning are carried out for 10-40 min, and then neutralization and water washing are carried out in a solution with the concentration of sodium carbonate being 3-5 g/L.

Further, the rust removing cleaning solution used for the rust removing cleaning comprises the following components: 100 g/L of concentrated sulfuric acid, 200 g/L of concentrated hydrochloric acid, 0.8 g/L of hexamethylenetetramine, 7 g/L of nonionic emulsifier, 5 g/L of nonionic penetrant, 2 g/L of isopropanol and the balance of tap water; the concentration of the concentrated sulfuric acid is 98wt%, and the concentration of the concentrated hydrochloric acid is 31 wt%. The purpose of rust removal and cleaning is to remove rust on the surface of the steel and further clean the steel and ensure clean cleaning. The nonionic emulsifier is nonylphenol polyoxyethylene ether, and the nonionic penetrant is alkylphenol polyoxyethylene ether.

Further, during cleaning, the water-based cleaning agent is stirred and/or the workpiece is moved up, down, left and right. The purpose of carrying out the above operation is: in winter, the cleaning effect can be improved when the room temperature is lower.

(2) Cleaning floor, furniture, door and window, kitchen and smoke exhaust ventilator

When the table top, the door and the window and the furniture are cleaned, the cleaning agent is wiped by cloth or is wiped by cloth after being sprayed. When cleaning floor, according to the oil stain on the cleaned surface the above-mentioned material can be diluted by using running water or well water and river water whose water quality is identical to that of running water according to 0.5% -100%, the diluted cleaning agent can be sprayed on the oil stain place or soaked cloth or mop, and the cleaning agent can be completely removed by using wet cloth or mop. When a range hood of a kitchen is cleaned, the cleaning agent is formed into a mist shape by virtue of a nozzle, the mist cleaning agent is conveyed to each surface of the range hood along an oil stain operation line by virtue of air pumped by the range hood to clean oil stains, and the cleaning agent dissolved with the oil stains is discharged from an oil stain collection part of the range hood under the action of gravity; the range hood is not added with an auxiliary mechanism, the temperature in the range hood is not increased, the power consumption is low, the use is convenient, the effect is good, and no dead angle exists.

The invention has the beneficial effects that: 1) the water-based cleaning agent does not contain phosphorus; the cleaning agent can be repeatedly used when being used for cleaning steel workpieces before coating; the dipping cleaning temperature is low (even at the low temperature of 5 ℃), the cleaning effect is good, the greasy dirt can be removed by manually wiping with cloth or wiping with cloth cleaning agent after spraying, the water film on the surface of the cleaned test piece can be even, namely, the oil hanging quantity on the surface is less than 0.20 g/m²Provides good steel surface for subsequent treatments such as phosphating before spraying, generates uniform and compact colored phosphating film after phosphating treatment, takes the phosphating film as a paint bottom layer, sprays iron red epoxy primer with the thickness of about 25 mu m, determines the adhesive force of the iron red epoxy primer according to the regulation of GB 1720-79 'paint film adhesive force determination method', the adhesive force reaches level 1,or/and the impact resistance of the paint film is determined according to the method specified in GB/T1723-1993, and a 50 kg cm paint film does not break. 2) When the cleaning agent is used for cleaning floors, furniture, doors and windows, kitchens and smoke exhaust ventilators, the cleaning agent can be cleaned all the year round no matter in cold or hot days or in high or low temperature, and the cleaning agent also has a light and pleasant fragrance. When the range hood of a kitchen is cleaned, the mist cleaning agent is conveyed to the surfaces of all parts in the range hood along an oil stain operation line by virtue of air pumped by the range hood to clean oil stains, and the cleaning agent containing the oil stains is discharged through an oil stain collection part of the range hood under the action of gravity; the range hood is not added with an auxiliary mechanism, the temperature in the range hood is not increased, the power consumption is low, the use is convenient, the effect is good, and no dead angle exists.

Detailed Description

The present invention will be further described with reference to the following examples.

The chemical reagents used in the examples of the present invention, unless otherwise specified, are commercially available in a conventional manner.

Example 1

The water-based cleaning agent comprises the following components in percentage by weight:

100 g/L of fatty alcohol-polyoxyethylene ether;

80 g/L of alkylphenol polyoxyethylene;

6 g/L of petroleum ether;

50 g/L of isopropanol;

50 g/L of ethylene glycol ethyl ether;

propylene glycol propyl ether 20 g/L;

30 g/L of triethanolamine;

10 g/L of anhydrous sodium metasilicate;

2 g/L of disodium hydrogen citrate;

sweet orange oil 0.1 g/L;

peppermint oil 0.2 g/L;

0.2 g/L of defoaming agent;

0.1 g/L of cason;

the rest is tap water.

The preparation method of the water-based cleaning agent comprises the following steps:

adding triethanolamine, disodium hydrogen citrate, anhydrous sodium metasilicate and defoaming agent into about 700 mL of tap water, and stirring for dissolving; and adding the fatty alcohol-polyoxyethylene ether, the alkylphenol ethoxylates, the isopropanol, the ethylene glycol ethyl ether and the propylene glycol propyl ether which are uniformly mixed while stirring, then adding the petroleum ether while stirring, then adding the kaempferol, the sweet orange oil and the peppermint oil, fully stirring and dissolving until the solution is transparent, supplementing tap water to 1L, and uniformly stirring to obtain the composition.

In the application test of the product of this example, the test piece of 304 stainless steel or cold rolled plate Q235 used was 70 mm × 50 mm × 1.0 mm. Before a cleaning test, the test piece is cleaned by using the cleaning agent in the embodiment until a water film on the surface is uniform after being washed, then the test piece is dried by blowing cold air by an electric blower, and then the artificial oil stain is uniformly coated, wherein the artificial oil stain is obtained by uniformly mixing 2 parts of No. 30 machine oil and 1 part of industrial white vaseline, melting the mixture at 120 ℃, and cooling the mixture.

The process for cleaning the artificially oil-stained 304 stainless steel test piece or the Q235 cold-rolled sheet test piece by using the water-based cleaning agent comprises the following steps:

the amount of oil to be added is 2.0-2.5 g/m²The test piece of 304 stainless steel or the test piece of Q235 cold-rolled sheet is soaked in 500 mL of water-based cleaning agent diluted by 10% of tap water solution at 5 ℃ for pre-cleaning for 30 min, then is washed by water, is soaked in 500 mL of water-based cleaning agent diluted by 10% of tap water solution at 5 ℃ for cleaning for 30 min, is stirred at the same time, and is then washed by tap water. The detergency reaches 92% after the 304 stainless steel test piece is dried for 40 min at 120 ℃ and cooled. And (3) derusting and cleaning the Q235 test piece for 20 min, observing no rust and uniform water film on the surface of the test piece visually, neutralizing and washing in a solution with the concentration of 3 g/L of sodium carbonate, and finally washing and phosphorizing.

The rust removing cleaning liquid used for the rust removing cleaning comprises the following components: 100 g/L of concentrated sulfuric acid, 200 g/L of concentrated hydrochloric acid, 0.8 g/L of hexamethylenetetramine, 8 g/L of fatty alcohol-polyoxyethylene ether, 5 g/L of alkylphenol polyoxyethylene, 3 g/L of isopropanol and the balance of tap water. The concentration of the concentrated sulfuric acid is 98wt%, and the concentration of the concentrated hydrochloric acid is 31 wt%.

When the oil stain is repaired and cleaned manually or the oil stain is cleaned manually on a large piece, the oil stain can be cleaned by cloth or after the cleaning agent is cleaned by cloth after being sprayed, and then the treatment such as generating a conversion film is carried out.

The water film on the surface of the test piece after cleaning treatment before phosphating is even, namely the oil hanging amount on the surface is less than 0.20 g/m²。

The phosphorization method adopts the scheme of example 1 in a normal-temperature manganese-calcium phosphorization liquid disclosed in CN102747356B, namely, the phosphorization liquid is composed of 7.0 g/L phosphoric acid (85%), 14.5 g/L manganese dihydrogen phosphate dihydrate, 5.0g/L manganese nitrate solution (50%), 0.5 g/L ammonium molybdate tetrahydrate, 1.5 g/L calcium nitrate tetrahydrate, 0.1 g/L citric acid, 0.1 g/L sodium fluoborate, 0.3 g/L phytic acid (70%), 0.1 g/L tartaric acid, 0.1 g/L hydrogen peroxide (30%), and 0.1 g/L sodium benzoate, the pH value is adjusted to 2.5-2.8 by ammonia water, a test piece is phosphorized for 7 min at 15 ℃, taken out and dried for 10 min at 120 ℃.

The generated colored phosphating film is uniform and compact, the phosphating film is used as a paint bottom layer, after iron oxide red epoxy primer with the thickness of about 25 mu m is sprayed, the adhesive force of the iron oxide red epoxy primer is measured according to the regulation of GB 1720-79 'paint film adhesive force measuring method', and the adhesive force reaches grade 1; or/and the impact resistance of the paint film is determined according to the method specified in GB/T1723-1993, and the 50 kg. cm paint film does not break.

In the application test of the product of the embodiment, the detergency is determined according to the specification of appendix A of QB/T4348-2012, and reaches 82% (QB/T4348-2012 requires that the detergency is more than or equal to 80%). When the table top, the door and the window and the furniture are cleaned, the cleaning agent can be cleaned by cloth or the cleaning agent can be cleaned by cloth after being sprayed, and the table top, the door and the window and the furniture can be cleaned no matter the indoor temperature is high or low all the year round. When the range hood of a kitchen is cleaned, the cleaning agent is formed into a mist shape by virtue of the spraying nozzle, the mist cleaning agent is conveyed to each surface of the range hood to clean oil stains along an oil stain operation line by virtue of air pumped by the range hood, and the cleaning agent containing the oil stains is discharged from an oil stain collection part of the range hood under the action of gravity.

Example 2

65 g/L of octyl phenol polyoxyethylene ether;

56 g/L alkylphenol polyoxyethylene ether;

15 g/L of petroleum ether;

10 g/L of isopropanol;

10 g/L of ethylene glycol ethyl ether;

10 g/L of propylene glycol propyl ether;

5 g/L triethanolamine;

anhydrous sodium metasilicate 1.5 g/L;

1 g/L disodium hydrogen citrate;

sweet orange oil 0.2 g/L;

1.5 g/L of peppermint oil;

0.2 g/L of defoaming agent;

0.5 g/L of cason;

the rest is tap water.

adding triethanolamine, disodium hydrogen citrate, anhydrous sodium metasilicate and defoaming agent into about 700 mL of tap water, and stirring for dissolving; and adding uniformly mixed octyl phenol polyoxyethylene ether, alkylphenol ethoxylates, isopropanol, ethylene glycol ethyl ether and propylene glycol propyl ether while stirring, adding petroleum ether while stirring, adding the karson, the sweet orange oil and the peppermint oil, fully stirring and dissolving until the solution is transparent, supplementing tap water to 1L, uniformly stirring, and adjusting the pH value of the cleaning agent to about 6.5 by using citric acid.

The cleaning agent in the embodiment is transparent and uniform liquid, the pH value is 6.5, and the detergency is measured according to the specification of appendix A of QB/T4348-2012 kitchen greasy dirt cleaning agent, and reaches 86% (QB/T4348-2012 requires that the detergency is more than or equal to 80%); if the detergent is diluted by 10 percent and 20 percent by using tap water and then the detergency is measured according to the specification of appendix A of QB/T4348-2012, the detergency reaches 82 percent and 84 percent respectively; the detergency is determined according to appendix A of QB/T4532-2013 hard floor cleaner, and is 91% (QB/T4532-2013 requires that the detergency is more than or equal to 90%). When the table top, the door and the window and the furniture are cleaned, the cleaning agent can be cleaned by cloth or the cleaning agent can be cleaned by cloth after being sprayed, and the table top, the door and the window and the furniture can be cleaned no matter the indoor temperature is high or low all the year round. When a range hood of a kitchen is cleaned, the cleaning agent is formed into a mist shape by virtue of the spray nozzle, the mist cleaning agent is conveyed to each surface of the range hood along an oil stain operation line by virtue of air pumped by the range hood to clean oil stains, and the cleaning agent containing the oil stains is discharged from an oil stain collection position of the range hood under the action of gravity; the range hood is not added with an auxiliary mechanism, the temperature in the range hood is not increased, the power consumption is low, the use is convenient, the effect is good, and no dead angle exists.

The cleaning agent of the embodiment is diluted by adding tap water according to the mass ratio of 10 percent, and the oil content is 2.0-2.5 g/m²The 304 stainless steel test piece is soaked in the water-based cleaning agent obtained by dilution at 10 ℃ for pre-cleaning for 25 min, then is washed by water, is soaked in the water-based cleaning agent obtained by dilution at 10 ℃ for cleaning for 20 min, is stirred at the same time, and is washed by tap water, and after the stainless steel test piece is dried for 40 min at 120 ℃ and is cooled, the detergency reaches 93%. When the oil stain is manually cleaned, the oil hanging amount is 2.0-2.5 g/m²The Q235 test piece is cleaned by cloth or a cleaning agent is cleaned by cloth after being sprayed, after the test piece is cleaned by water, the water film on the surface of the test piece is uniform, and oil stains are cleaned.

Example 3

nonylphenol polyoxyethylene ether 18 g/L;

26 g/L alkylphenol polyoxyethylene ether;

32 g/L of petroleum ether;

6 g/L of isopropanol;

5 g/L of ethylene glycol ethyl ether;

7 g/L of propylene glycol propyl ether;

5 g/L triethanolamine;

1 g/L anhydrous sodium metasilicate;

5 g/L disodium hydrogen citrate;

1.5 g/L of sweet orange oil;

1 g/L of peppermint oil;

0.2 g/L of defoaming agent;

2 g/L of kasong;

the rest is tap water.

adding triethanolamine, disodium hydrogen citrate, anhydrous sodium metasilicate and a defoaming agent into about 700 mL of tap water, stirring and dissolving, adding uniformly mixed nonylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether, isopropanol, ethylene glycol ethyl ether and propylene glycol propyl ether while stirring, adding petroleum ether while stirring, adding karson, sweet orange oil and peppermint oil, fully stirring and dissolving until the solution is transparent, supplementing tap water to 1L, stirring uniformly, and adjusting the pH value of the solution to about 6.5 by using citric acid to obtain the finished product.

The cleaning agent is transparent and uniform liquid, the pH value is about 6.5, the cleaning agent is diluted into 0.5% working solution by tap water, the detergency is determined according to annex A of QB/T4532-2013 hard floor cleaning agent, and the detergency reaches 93% (the detergency is more than or equal to 90% required by QB/T4532-2013); the detergency is determined according to the specification of appendix A of QB/T4348-2012 kitchen greasy dirt detergent, and reaches 86% (QB/T4348-2012 requires the detergency to be more than or equal to 80%). When the floor is cleaned, the diluted cleaning agent is sprayed to the greasy dirt or soaked cloth or mop according to the dilution of 0.5% -100% of running water or well water or river water with the same water quality, and the cleaning agent is dragged by the wet cloth or mop. When the range hood of a kitchen is cleaned, the cleaning agent is formed into a mist shape by virtue of the spraying nozzle, the mist cleaning agent is conveyed to each surface of the range hood to clean oil stains along an oil stain operation line by virtue of air pumped by the range hood, and the cleaning agent containing the oil stains is discharged from an oil stain collection part of the range hood under the action of gravity.

The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The water-based cleaning agent is characterized by being prepared from a nonionic emulsifier, a nonionic penetrant, petroleum ether, ethylene glycol ethyl ether, propylene glycol propyl ether, triethanolamine, sodium metasilicate, sweet orange oil, peppermint oil, a defoaming agent, kaempferol and matrix tap water.

2. The water-based cleaning agent according to claim 1, wherein the contents of the components are as follows:

the nonionic emulsifier is 5-120 g/L;

the non-ionic penetrant is 5-100 g/L;

1-35 g/L of petroleum ether;

the ethylene glycol ethyl ether is 1-20 g/L;

1-20 g/L of propylene glycol propyl ether;

the triethanolamine content is 2-30 g/L;

the sodium metasilicate is 0.5-10 g/L;

0.5-8 g/L disodium hydrogen citrate

The isopropanol is 1-50 g/L;

0.1-2 g/L sweet orange oil;

0.1-2 g/L of peppermint oil;

the defoaming agent is 0.1-0.2 g/L;

the content of the kasong is 0.1-2 g/L;

the rest is tap water.

3. The water-based cleaning agent according to claim 1, wherein the contents of the components are as follows:

the nonionic emulsifier is 18-100 g/L;

the non-ionic penetrant is 26-80 g/L;

the petroleum ether is 6-32 g/L;

the ethylene glycol ethyl ether is 6-50 g/L;

7-20 g/L of propylene glycol propyl ether;

the triethanolamine content is 3-30 g/L;

1-10 g/L of sodium metasilicate;

1-5 g/L disodium hydrogen citrate

The isopropanol is 5-50 g/L;

0.1-2 g/L sweet orange oil;

0.1-2 g/L of peppermint oil;

the defoaming agent is 0.1-0.2 g/L;

the content of the kasong is 0.1-2 g/L;

the rest is tap water.

4. The water-based cleaning agent as claimed in any one of claims 1 to 3, wherein the nonionic penetrating agent is alkylphenol ethoxylate or isomeric decyl alcohol ethoxylate, and the HLB value is 10 to 14.

5. The water-based cleaning agent according to any one of claims 1 to 4, wherein the sodium metasilicate is one or more of instant sodium metasilicate, anhydrous sodium metasilicate and pentahydrate sodium metasilicate.

6. The water-based cleaning agent as claimed in any one of claims 1 to 5, wherein the defoaming agent is an FAG470 type silicone compound.

7. A method for preparing the water-based cleaning agent as claimed in any one of claims 1 to 6, wherein the method comprises the following steps: adding triethanolamine, disodium hydrogen citrate, anhydrous sodium metasilicate and defoaming agent into about 700 mL of tap water, and stirring for dissolving; adding the uniformly mixed nonionic emulsifier, nonionic penetrant, isopropanol, ethylene glycol ethyl ether and propylene glycol propyl ether while stirring, then adding petroleum ether while stirring, adding the kalong, sweet orange oil and peppermint oil, fully stirring and dissolving until the solution is transparent, supplementing tap water to 1L, and uniformly stirring to obtain the finished product.

8. Use of the water-based cleaning agent according to any one of claims 1 to 6 for cleaning steel workpieces, floors, furniture, doors and windows, kitchens and smoke exhaust ventilators.