CN115232677A - Strong oil removing agent and preparation method thereof - Google Patents

Strong oil removing agent and preparation method thereof Download PDF

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Publication number
CN115232677A
CN115232677A CN202210828412.9A CN202210828412A CN115232677A CN 115232677 A CN115232677 A CN 115232677A CN 202210828412 A CN202210828412 A CN 202210828412A CN 115232677 A CN115232677 A CN 115232677A
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Prior art keywords
surfactant
oil remover
strong oil
sodium
remover according
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CN115232677B (en
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王天兵
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Suzhou Golden Moss Mouse Pipe Cleaning Co ltd
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Suzhou Golden Moss Mouse Pipe Cleaning Co ltd
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146Sulfuric acid esters
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/04Carboxylic acids or salts thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/12Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29Sulfates of polyoxyalkylene ethers
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02Anionic compounds
    • C11D1/37Mixtures of compounds all of which are anionic
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38Cationic compounds
    • C11D1/62Quaternary ammonium compounds
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    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38Cationic compounds
    • C11D1/65Mixtures of anionic with cationic compounds
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/662Carbohydrates or derivatives
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/72Ethers of polyoxyalkylene glycols
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/825Mixtures of compounds all of which are non-ionic
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/83Mixtures of non-ionic with anionic compounds
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/835Mixtures of non-ionic with cationic compounds
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/044Hydroxides or bases
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    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/06Phosphates, including polyphosphates
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    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/08Silicates
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    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/04Water-soluble compounds
    • C11D3/10Carbonates ; Bicarbonates
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    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2075Carboxylic acids-salts thereof
    • C11D3/2079Monocarboxylic acids-salts thereof
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    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
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    • C11D3/2086Hydroxy carboxylic acids-salts thereof
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    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/32Amides; Substituted amides

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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Molecular Biology (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention relates to the technical field of detergents, in particular to the field of IPC 11D1, and more particularly relates to a strong oil remover and a preparation method thereof. The invention selects the following components in weight ratio (2-10): (1-7): 1, the compound surfactant, the ionic surfactant and the nonionic surfactant are used as the surfactants, under the action of the foam stabilizer, the dispersing agent and the inorganic base, the dirt-removing capacity of the oil remover can be greatly improved, the stability of the oil remover at high temperature and low temperature can also be improved, the prepared oil remover has small irritation and low phosphorus content, and the damage of the prepared oil remover to a human body can be reduced. The strong degreasing agent prepared by the invention can be applied to the fields of hard surface oiling of materials, clothes degreasing and the like.

Description

Strong oil removing agent and preparation method thereof
Technical Field
The invention relates to the technical field of detergents, in particular to the field of IPC 11D1, and more particularly relates to a strong oil remover and a preparation method thereof.
Background
The degreasing agent is mainly prepared from various surfactants, auxiliaries and the like, can remove stains such as oil stains, mildew stains and the like on the surface of a substance, and can protect substrate materials such as metal, textile, porcelain and the like from being damaged as much as possible.
In the prior art, patent document with application publication number CN103556166a discloses an oil remover and a preparation method thereof, a detergent prepared by mixing butyl acetate, dimethyl silicone oil, acetone and the like is added to remove a large amount of stains, but the raw materials contain trisodium phosphate, and the existence of phosphorus element may cause water body oxygenation and water body pollution.
The patent document with the application publication number of CN104862112A discloses a clothes oil remover and a preparation method thereof, and the clothes oil remover which has good stability in water and can remove oil quickly is prepared from specific raw materials, but the improvement on the high-temperature and low-temperature stability of the oil remover is not obvious.
Disclosure of Invention
In order to solve the above problems, the invention provides a strong oil remover, which comprises the following raw materials in percentage by weight: 10-20% of surfactant, 2-8% of foam stabilizer, 0.5-4% of dispersant, 0.1-2% of inorganic alkali and the balance of water to 100%.
Preferably, the surfactant is one or more of a compound surfactant, an amphoteric surfactant, an ionic surfactant and a nonionic surfactant; further preferably, the surfactant is a compound surfactant, an ionic surfactant and a nonionic surfactant.
Preferably, the weight ratio of the compound surfactant to the ionic surfactant to the nonionic surfactant is (2-10): (1-7): 1; further preferred is 5.
Preferably, the compound surfactant is an alkoxy quaternary ammonium compound.
Preferably, the quaternary ammonium alkoxy compound has a surface tension of 15 to 40dynes/cm and a viscosity of 40 to 80cps at 25 ℃; further preferably, the quaternary ammonium alkoxy compound has a surface tension of 25dynes/cm and a viscosity of 50 to 70cps at 25 ℃.
In some preferred embodiments, the compounded surfactant is obtained from the compound surfactant MF EH, manufactured by guangzhou pioneer chemical technology ltd.
In some preferable schemes, the alkoxy quaternary ammonium compound with the surface tension of 15-40dynes/cm and the viscosity of 40-80cps at 25 ℃ is selected as the compound surfactant, and the alkoxy quaternary ammonium compound is applied to the oil removing agent in the application, so that the dirt-removing capacity of the oil removing agent can be improved. This is probably because the surface tension and viscosity of the specific alkoxy quaternary ammonium compound are low, so that the prepared oil remover can wet the surface of a substrate, thereby improving the contact of effective components and the surface of the substrate material, and further improving the dirt-removing capacity of the oil remover. However, the compounded surfactant is expensive and strong in adsorption capacity, and only the compounded surfactant serving as the surfactant has limited improvement on the decontamination capability of the oil removal agent.
Preferably, the ionic surfactant is one or two of an anionic surfactant and a cationic surfactant; further preferably, it is an anionic surfactant.
Preferably, the anionic surfactant is one or more of sodium dodecyl benzene sulfonate, sodium lauryl sulfate, sodium fatty alcohol-polyoxyethylene ether sulfate and stearic acid; further preferred are sodium dodecylbenzene sulfonate, sodium lauryl sulfate and sodium fatty alcohol polyoxyethylene ether sulfate.
Preferably, the weight ratio of the sodium dodecyl benzene sulfonate, the sodium lauryl sulfate and the sodium fatty alcohol polyoxyethylene ether sulfate is (6-14): (1-2): (1-2); further preferred is 10.
The CAS number of the sodium dodecyl benzene sulfonate is 25155-30-0.
The CAS number of the sodium lauryl sulfate is 151-21-3.
Preferably, the content of active matters in the sodium alcohol ether sulphate is 60-80%, and the content of free oil is less than or equal to 5%; preferably, the content of active matters in the sodium fatty alcohol-polyoxyethylene ether sulfate is 68-72%, and the content of free oil is less than or equal to 3.5%.
In some preferred embodiments, the sodium fatty alcohol polyoxyethylene ether sulfate is purchased from Liaoning Huaxing corporation.
The applicant unexpectedly found that the weight ratio of (6-14): (1-2): the sodium dodecyl benzene sulfonate, the sodium lauryl sulfate and the fatty alcohol-polyoxyethylene ether sodium sulfate in the step (1-2) are jointly used as an anionic surfactant, so that the heat stability of the oil remover can be improved while the decontamination effect of the oil remover is improved. The oil can be emulsified, dispersed and compatibilized to achieve the purpose of removing oil stains due to the compounding effect of the three anionic surfactants, and the connecting bond between the sulfonic group and alkylbenzene in the sodium dodecyl benzene sulfonate is a C-S bond which has high energy, so that the hydrolysis resistance stability and chemical acid and alkali resistance stability of the oil remover can be improved, and the defect that the fatty alcohol polyoxyethylene ether sulfate is unstable under the acid and strong alkaline conditions is overcome. The sodium fatty alcohol polyoxyethylene ether sulfate has good foaming performance, and can improve the foaming stability under the auxiliary action of the specific foam stabilizer, thereby improving the decontamination stability of the product.
Preferably, the nonionic surfactant is one or more of alkylphenol ethoxylates, fatty acid polyoxyethylene ether, fatty alcohol polyoxyethylene ether and modified alkyl glycoside; further preferred are modified alkyl glycosides.
Preferably, the modified alkyl glycoside is obtained by modifying alkyl glycoside with fatty alcohol ether.
Preferably, the viscosity of the modified alkyl glycoside at 20 ℃ is more than or equal to 600mPa & s, and the solid content is more than or equal to 40%; more preferably, the viscosity of the modified alkyl glycoside is not less than 800mPa · s at 20 ℃, and the solid content is not less than 50%.
In some preferred embodiments, the modified alkyl glycoside is purchased from the alcohol ether glycoside AEG500, manufactured by elytrigia natantia.
The applicant unexpectedly found that when alkyl glycoside modified by fatty alcohol ether and having viscosity of not less than 600 mPas at 20 ℃ and solid content of not less than 40% is selected as nonionic surfactant, the low-temperature stability of the oil remover can be improved. The method is probably because the alkyl glycoside has no cloud point, strong wetting power and rich and dense foam, can reduce the irritation of a system, further improves the compounding capability and the mildness of the alkyl glycoside and various surfactants through the modification of fatty alcohol ether, and has high emulsifying property and good low-temperature water solubility, thereby improving the low-temperature stability of the oil removing agent.
Preferably, the foam stabilizer is one or more of sodium silicate and cocamidomethyl; more preferably, sodium silicate.
Preferably, the modulus of the sodium silicate is 2.0-3.0, and the content of silicon dioxide is more than or equal to 25 percent; more preferably, the modulus of the sodium silicate is 2.2-2.5, and the content of silicon dioxide is more than or equal to 29.2%.
In some preferred embodiments, the sodium silicate is purchased from alkaline sodium silicate liquor (B) produced by hitachi chemical corporation of township city.
Preferably, the dispersant is one or more of citric acid, malic acid, acetic acid, sodium pyrophosphate, sodium carbonate and sodium oxalate; further preferably, citric acid.
Preferably, the inorganic base is one or more of sodium hydroxide, potassium hydroxide, calcium hydroxide and lithium hydroxide; further preferably, sodium hydroxide.
The second aspect of the invention provides a preparation method of the strong oil removing agent, which comprises the following steps:
mixing the raw materials, and stirring.
Preferably, the preparation method of the strong oil removing agent comprises the following steps: mixing surfactant and water, heating to 90-110 deg.C, stirring, adding foam stabilizer and dispersant after stirring for 20-30min, cooling to 40-60 deg.C after stirring, adding inorganic base, and stirring.
The strong oil removing agent can be applied to the fields of hard surface oiling of materials, clothes oil removing and the like.
Has the advantages that:
1. by selecting the alkoxy quaternary ammonium compound with the surface tension of 15-40dynes/cm and the viscosity of 40-80cps at 25 ℃ as the compound surfactant, the application of the compound surfactant in the oil remover can improve the dirt-removing capacity of the oil remover.
2. Selecting the following components in percentage by weight (6-14): (1-2): the sodium dodecyl benzene sulfonate, the sodium lauryl sulfate and the fatty alcohol-polyoxyethylene ether sodium sulfate in the step (1-2) are jointly used as anionic surfactants, so that the decontamination effect of the oil remover can be improved, and the thermal stability of the oil remover can also be improved.
3. When the alkyl glycoside modified by fatty alcohol ether is used as the nonionic surfactant, the low-temperature stability of the oil remover can be improved, wherein the viscosity of the surfactant at 20 ℃ is more than or equal to 600mPa & s, the solid content of the surfactant is more than or equal to 40%.
4. The invention selects the following components in weight ratio (2-10): (1-7): 1, the compound surfactant, the ionic surfactant and the nonionic surfactant are used as the surfactants, under the action of the foam stabilizer, the dispersing agent and the inorganic base, the dirt-removing capability of the oil remover can be greatly improved, the stability of the oil remover at high temperature and low temperature can be improved, the prepared oil remover has small irritation and low phosphorus content, and the damage of the oil remover to a human body can be reduced.
5. The strong degreasing agent prepared by the invention can be applied to the fields of hard surface oiling of materials, clothes degreasing and the like.
Detailed Description
Examples
Example 1
Embodiment 1 provides a strong oil remover, which comprises the following raw materials in percentage by weight: 14% of surfactant, 5% of foam stabilizer, 2% of dispersant, 1% of inorganic base and the balance of water to 100%.
The surfactant is a compound surfactant, an ionic surfactant and a nonionic surfactant.
The weight ratio of the compound surfactant to the ionic surfactant to the nonionic surfactant is 5.
The compound surfactant is an alkoxy quaternary ammonium compound.
The quaternary ammonium alkoxy compound has a surface tension of 25dynes/cm and a viscosity of 50 to 70cps at 25 ℃.
The compound surfactant is a compound surfactant MF EH produced by Guangzhou, tuo-Innovation chemical technology Co.
The ionic surfactant is an anionic surfactant.
The anionic surfactant is sodium dodecyl benzene sulfonate, sodium lauryl sulfate and fatty alcohol-polyoxyethylene ether sodium sulfate.
The weight ratio of the sodium dodecyl benzene sulfonate, the sodium lauryl sulfate and the sodium fatty alcohol-polyoxyethylene ether sulfate is 10.
The CAS number of the sodium dodecyl benzene sulfonate is 25155-30-0.
The CAS number of the sodium lauryl sulfate is 151-21-3.
The content of active matters in the sodium fatty alcohol-polyoxyethylene ether sulfate is 68-72%, and the content of free oil is less than or equal to 3.5%.
The sodium fatty alcohol polyoxyethylene ether sulfate was purchased from Liaoning Huaxing company.
The nonionic surfactant is a modified alkyl glycoside.
The modified alkyl glycoside is obtained by modifying alkyl glycoside with fatty alcohol ether.
The viscosity of the modified alkyl glycoside is more than or equal to 800mPa & s at 20 ℃, and the solid content is more than or equal to 50%.
The modified alkylglycoside is purchased from the alcohol ether glycoside AEG500 produced by Elytrigs Nature biomaterial Ltd.
The foam stabilizer is sodium silicate.
The modulus of the sodium silicate is 2.2-2.5, and the content of silicon dioxide is more than or equal to 29.2%.
The sodium silicate was purchased from alkaline sodium silicate solution (B) produced by hitachi chemical industries, ltd.
The dispersant is citric acid.
The inorganic base is sodium hydroxide.
The second aspect of the invention provides a preparation method of the strong oil removing agent, which comprises the following steps:
mixing the raw materials, and stirring.
Preferably, the preparation method of the strong oil removing agent comprises the following steps: mixing surfactant and water, heating to 95 deg.C, stirring, adding foam stabilizer and dispersant after stirring for 25min, cooling to 50 deg.C after stirring, adding inorganic base, and stirring.
Example 2
Example 2 provides a strong oil remover, and the specific implementation manner is the same as example 1, except that: the surfactant is an ionic surfactant and a nonionic surfactant.
The weight ratio of the ionic surfactant to the nonionic surfactant is 4:1.
Example 3
Example 3 provides a strong oil remover, and the specific implementation manner is the same as example 1, except that: the anionic surfactant is sodium lauryl sulfate and fatty alcohol-polyoxyethylene ether sulfate.
The weight ratio of the sodium lauryl sulfate to the sodium fatty alcohol polyoxyethylene ether sulfate is 1:1.
Example 4
Example 4 provides a strong oil remover, which is different from example 1 in the following specific implementation manner: the nonionic surfactant is alkyl glycoside.
The alkyl glycoside was purchased from the Qingkagao New materials works, yangzhou.
Example 5
Example 5 provides a strong oil remover, and the specific implementation manner is the same as example 1, except that: the weight ratio of the compound surfactant to the ionic surfactant to the nonionic surfactant is 1.
Performance test method
1. Degree of decontamination
For the strong degreasers prepared in examples 1 to 5, the detergency ratio was measured with reference to GB/T35833-2018, and the results are shown in Table 1.
2. Stability of
The strong degreasers prepared in examples 1 to 5 were maintained at 40 ℃ and-10 ℃ for 24 hours, and then returned to normal temperature, and the appearance was compared with that of the original state, and the results are shown in Table 1.
3. Total phosphorus pentoxide content
For the strong degreasers prepared in examples 1-5, the phosphorus pentoxide content was tested with reference to GB/T35833-2018 and the results are reported in Table 1.
TABLE 1
Decontamination rate/%) Appearance after 40 deg.C Appearance after 10 deg.C Total phosphorus pentoxide content/%)
Example 1 74.8 Is normal Is normal <0.1
Example 2 70.5 Is normal Is normal <0.1
Example 3 72.1 Demixing and separating out Demixing and separating out <0.1
Example 4 73.0 Is normal Demixing and separating out <0.1
Example 5 71.7 Demixing and separating out Demixing and separating out <0.1

Claims (10)

1. The strong oil removing agent is characterized by comprising the following raw materials in percentage by weight: 10-20% of surfactant, 2-8% of foam stabilizer, 0.5-4% of dispersant, 0.1-2% of inorganic base and the balance of water to 100%.
2. A strong oil remover according to claim 1, wherein the surfactant is one or more of a complex surfactant, an amphoteric surfactant, an ionic surfactant and a nonionic surfactant.
3. A strong oil remover according to claim 2, wherein said built surfactant is an alkoxy quaternary ammonium compound; the quaternary ammonium alkoxy compounds have a surface tension of 15-40dynes/cm and a viscosity of 40-80cps at 25 ℃.
4. A strong oil remover according to claim 2, wherein said ionic surfactant is one or both of an anionic surfactant and a cationic surfactant.
5. A strong oil remover according to claim 4, wherein said anionic surfactant is one or more of sodium dodecylbenzenesulfonate, sodium lauryl sulfate, sodium fatty alcohol-polyoxyethylene ether sulfate, and stearic acid.
6. A strong oil remover according to claim 2, wherein said nonionic surfactant is one or more of alkylphenol ethoxylates, fatty acid polyoxyethylene ethers, fatty alcohol polyoxyethylene ethers, and modified alkyl glycosides.
7. A strong oil remover according to claim 6, wherein the viscosity of the modified alkylglycoside is not less than 600 mPa-s at 20 ℃ and the solid content is not less than 40%.
8. A strong oil remover according to claim 1, wherein the foam stabilizer is one or more of sodium silicate and cocamidomethyl.
9. The strong oil remover according to claim 8, wherein the inorganic base is one or more of sodium hydroxide, potassium hydroxide, calcium hydroxide and lithium hydroxide.
10. A method for preparing a strong oil remover according to any one of claims 1-9, comprising the steps of: mixing the raw materials, and stirring.
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