CN107881520A - A kind of neutral environment-friendly cleaning agent and preparation method thereof - Google Patents
A kind of neutral environment-friendly cleaning agent and preparation method thereof Download PDFInfo
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- CN107881520A CN107881520A CN201711322455.5A CN201711322455A CN107881520A CN 107881520 A CN107881520 A CN 107881520A CN 201711322455 A CN201711322455 A CN 201711322455A CN 107881520 A CN107881520 A CN 107881520A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
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Abstract
The invention discloses a kind of neutral environment-friendly cleaning agent and preparation method thereof, the neutral environment-friendly cleaning agent is that the raw material of following mass percent is included based on 100% by the gross mass of the cleaning agent：Surfactant 10~15%, chelating agent 3~6%, dispersant 0.5~1%, the water of corrosion inhibiter 2~4% and surplus.The present invention is combined using surfactant, chelating agent, dispersant and corrosion inhibiter, obtained cleaning agent is in neutrality, Environmentally-friephosphorus-free phosphorus-free, without polyoxyethylene alkylphenol ether (APEO) class material, do not pollute the environment and water source, there is good cleaning and descaling effect to metal works；And the cleaning agent normal temperature can just use, it is not necessary to heat, save the energy.
Description
Technical field
The present invention relates to metal conditioner technical field, in particular to a kind of neutral environment-friendly cleaning agent and its
Preparation method.
Background technology
Metal works, as cold rolling steel, hot-rolled coil, hardware can all leave greasy dirt and other in process
Residuals, metal works must clean up these greasy dirts and residue before surface treatment, otherwise can influence plating or
Spray final effect.Therefore metal cleaner plays an important role.
Metal works cleaning agent common type in the market has：
Organic solvent cleans, such as chloroform, kerosene, gasoline, toluene.
(main component has alkaline defatting agent：Sodium hydroxide, sodium carbonate, disodium ethylene diamine tetraacetate, sodium tripolyphosphate and
Some high foam surfactants etc.).
However, in the market there are many shortcomings in conventional metal works cleaning agent：
1. organic solvent is volatile, if the steam of people's long-time suction organic solvent will cause the phenomenon of slow poisoning.
2. hydrolysis contains hydroxide ion in the alkali compounds such as sodium hydroxide and sodium carbonate in alkaline cleaner, right
Workpiece corrosion is big, particularly some non-ferrous metals.
3. the general temperature in use of in the market metal cleaner is high, heating needs to consume substantial amounts of energy consumption, waste of resource.Contain
Phosphorus is not environmentally.The general high bubble of surfactant used, hardly possible rinsing.Containing APEO (polyoxyethylene alkylphenol ether class material) not rings
Protect.
The content of the invention
In view of this, a kind of neutral environment-friendly cleaning agent provided by the invention and preparation method thereof, preferably overcomes above-mentioned
The problem of prior art is present and defect, the present invention are combined using surfactant, chelating agent, dispersant and corrosion inhibiter, obtained
The cleaning agent arrived in neutrality, Environmentally-friephosphorus-free phosphorus-free, without polyoxyethylene alkylphenol ether (APEO) class material, do not pollute the environment with
Water source, there is good cleaning and descaling effect to metal works；And the cleaning agent normal temperature can just use, it is not necessary to heat, save
Environmental protection.
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：Surfactant 10~15%, chelating agent 3~6%, dispersant 0.5~1%, corrosion inhibiter 2~4% and surplus
Water.
Further, it is that the raw material of following mass percent is included based on 100% by the gross mass of the cleaning agent：Surface
Activating agent 12~14%, chelating agent 4~5%, dispersant 0.6~0.8%, the water of corrosion inhibiter 2~3% and surplus.
Further, the surfactant be ethoxylated acetylenic glycols, ethylene oxide-propylene oxide block copolymer,
One or more in organic silicon modified by polyether.
Further, described chelating agent is sodium tartrate, the sodium of 1-hydroxy ethylidene-1,1-diphosphonic acid four and iminodisuccinic acid four
One or both of sodium.
Further, described corrosion inhibiter is thiocarbamide or methenamine.
Further, described dispersant is dispersing agent MF, sodium methylene bis-naphthalene sulfonate and naphthalene sulfonic acids
One kind in formaldehyde condensation products sodium salt.
Further, the water is deionized water.
Present invention also offers a kind of preparation method of neutral environment-friendly cleaning agent, the neutral environment-friendly cleaning agent is above-mentioned
Neutral environment-friendly cleaning agent, the preparation method comprises the following steps：
Surfactant, chelating agent, dispersant, corrosion inhibiter and water are well mixed.
Further, the preparation method includes：First surfactant and chelating agent are stirred, sequentially added
Corrosion inhibiter, dispersant and water are uniformly mixed.
Further, the mixing speed is 50~100r/min.
Compared with prior art, a kind of beneficial effect of neutral environment-friendly cleaning agent of the invention and preparation method thereof is：
The present invention be combined using surfactant, chelating agent, dispersant and corrosion inhibiter, obtained cleaning agent in neutrality,
Environmentally-friephosphorus-free phosphorus-free, without polyoxyethylene alkylphenol ether (APEO) class material, do not pollute the environment and water source, have to metal works
There is good cleaning and descaling effect；And the cleaning agent normal temperature can just use, it is not necessary to heat, save the energy.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, make detailed
Carefully it is described as follows.
Embodiment
For the ease of understanding the present invention, technical scheme is elaborated with reference to the mode of embodiment,
Many details are elaborated in the following description in order to fully understand the present invention.
But the invention can be embodied in many other ways as described herein, those skilled in the art can
To do similar improvement in the case of without prejudice to intension of the present invention, therefore the present invention is not limited by following public specific implementation
System.
Unless otherwise defined, all technologies used herein and scientific terminology have common with art of the present invention
The identical implication that technical staff is generally understood that.When contradiction be present, the definition in this specification is defined.
Term as used herein：
Term "comprising" used herein, " comprising ", " having ", " containing " or its any other deformation, it is intended that covering
Non-exclusionism includes.For example, composition, step, method, product or device comprising listed elements are not necessarily limited to those
Key element, but not expressly listed other key elements or such a composition, step, method, product or device institute can be included inherently
Key element.
Conjunction " by ... form " exclude any key element do not pointed out, step or component.If it is used for claim
In, this phrase will make claim to be closed, it is not included the material in addition to the material of those descriptions, but with its phase
Except the customary impurities of pass.When phrase " by ... form " be rather than immediately following master in the clause that appears in claim main body
When after topic, it is only limited to the key element described in the clause；Other key elements are not excluded in the right as entirety
Outside it is required that.
Equivalent, concentration or other values or parameter are excellent with scope, preferred scope or a series of upper limit preferred values and lower limit
During the Range Representation that choosing value limits, this, which is appreciated that, specifically discloses by any range limit or preferred value and any model
All scopes that any pairing of lower limit or preferred value is formed are enclosed, regardless of whether the scope separately discloses.For example, work as
Disclosing scope, " when 1~5 ", described scope should be interpreted as including scope " 1~4 ", " 1~3 ", " 1~2 ", " 1~2
With 4~5 ", " 1~3 and 5 " etc..When number range is described herein, unless otherwise indicated, otherwise the scope is intended to bag
Include its end value and all integers and fraction within the range.
"and/or" is used to represent that one of illustrated situation or both may to occur, for example, A and/or B includes (A
And B) and (A or B).
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：
Surfactant 10~15% such as 10%, 11%, 12%, 13%, 14% or 15%；
Chelating agent 3~6% such as 3%, 3.5%, 4%, 4.5%, 5%, 5.5% or 6%；
Dispersant 0.5~1% such as 0.5%, 0.6%, 0.7%, 0.8%, 0.9% or 1%；
Corrosion inhibiter 2~4% such as 2%, 2.5%, 3%, 3.5% or 4%；
With the water of surplus.
Preferably, it is that the raw material of following mass percent is included based on 100% by the gross mass of the cleaning agent：Live on surface
Property agent 12~14%, chelating agent 4~5%, dispersant 0.6~0.8%, the water of corrosion inhibiter 2~3% and surplus.
The present invention be combined using surfactant, chelating agent, dispersant and corrosion inhibiter, obtained cleaning agent in neutrality,
Environmentally-friephosphorus-free phosphorus-free, it is solvent-free, without polyoxyethylene alkylphenol ether (APEO) class material, do not pollute the environment and water source；And this is clear
Lotion normal temperature can just use, it is not necessary to heat, save the energy.
Preferably, the surfactant is ethoxylated acetylenic glycols, ethylene oxide-propylene oxide block copolymer, gathered
One or more in ether modified organic silicon.
It should be noted that term " ethoxylated acetylenic glycols " represents a kind of surfactant, term " oxirane-ring
Ethylene Oxide block copolymer " represents a kind of nonionic surfactant, and term " organic silicon modified by polyether " represents that a kind of surface is lived
Property agent.Ethoxylated acetylenic glycols class surfactant can be enumerated as Surfynol-104 and Surfynol-440 etc.；Wherein,
Surfynol-104 structural formula is：
Surfynol-440 structural formula is：
The molecular structural formula of ethylene oxide-propylene oxide block copolymer class surfactant is： HO(C2H4O)n1
(C3H6O)m(C2H4O)n2H, wherein m are at least 15.
The structural formula of organic silicon modified by polyether class surfactant is：
Preferably, described chelating agent is sodium tartrate, the sodium of 1-hydroxy ethylidene-1,1-diphosphonic acid four and the sodium of iminodisuccinic acid four
One or both of.
Preferably, described corrosion inhibiter is thiocarbamide or methenamine.
Preferably, described dispersant is dispersing agent MF, sodium methylene bis-naphthalene sulfonate and naphthalene sulfonic acids first
One kind in aldehyde condensate sodium salt.
Preferably, the water is deionized water.
Present invention also offers a kind of preparation method of neutral environment-friendly cleaning agent, the neutral environment-friendly cleaning agent is above-mentioned
Neutral environment-friendly cleaning agent, the preparation method comprises the following steps：
Surfactant, chelating agent, dispersant, corrosion inhibiter and water are well mixed.
Preferably, the preparation method includes：First surfactant and chelating agent are stirred, sequentially added slow
Erosion agent, dispersant and water are uniformly mixed.
Preferably, the mixing speed be 50~100r/min such as 50r/min, 60r/min, 70r/min, 80r/min,
90r/min or 100r/min etc..
For the ease of understanding the present invention, technical scheme is further illustrated with reference to embodiment.Applicant
Statement, the present invention are illustrated by the following examples detailed process equipment and the technological process of the present invention, but not office of the invention
It is limited to following detailed process equipments and technological process, that is, does not mean that the present invention should rely on above-mentioned detailed process equipment and technique
Flow could be implemented.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, to product of the present invention
The equivalence replacement of each raw material and the addition of auxiliary element, the selection of concrete mode etc., all fall within protection scope of the present invention and public affairs
Within the scope of opening.
Embodiment 1
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：10%Surfynol-104, the sodium of 3% iminodisuccinic acid four, 2% thiocarbamide, 0.5% di-2-ethylhexylphosphine oxide methyl naphthalene sulphur
The water of sour sodium and surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 50r/min stirrings, first ethoxylated acetylenic glycols and the sodium of iminodisuccinic acid four is mixed and stirred
Mix 10 minutes, then add thiocarbamide, stir 5 minutes, add dispersing agent MF, after stirring 3 minutes, add
The deionized water of surplus is well mixed.
Embodiment 2
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：12%Surfynol-104, the sodium of 4% iminodisuccinic acid four, 2.5% thiocarbamide, 0.6% di-2-ethylhexylphosphine oxide methyl naphthalene
The water of sodium sulfonate and surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 60r/min stirrings, first ethoxylated acetylenic glycols and the sodium of iminodisuccinic acid four is mixed and stirred
Mix 10 minutes, then add thiocarbamide, stir 6 minutes, add dispersing agent MF, after stirring 4 minutes, add
The deionized water of surplus is well mixed.
Embodiment 3
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：11%Surfynol-104, the sodium of 3.5% iminodisuccinic acid four, 3% thiocarbamide, 0.7% di-2-ethylhexylphosphine oxide methyl naphthalene
The water of sodium sulfonate and surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 70r/min stirrings, first ethoxylated acetylenic glycols and the sodium of iminodisuccinic acid four is mixed and stirred
Mix 10 minutes, then add thiocarbamide, stir 8 minutes, add dispersing agent MF, after stirring 3 minutes, add
The deionized water of surplus is well mixed.
Embodiment 4
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：13% ethylene oxide-propylene oxide block copolymer, 5% sodium tartrate, 3.5% methenamine, 0.8% methylene
The water of double sodium naphthalene sulfonates and surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 80r/min stirrings, first ethylene oxide-propylene oxide block copolymer and sodium tartrate are mixed
Stirring 10 minutes, methenamine is then added, stirred 8 minutes, add sodium methylene bis-naphthalene sulfonate, after stirring 5 minutes, added
The deionized water for entering surplus is well mixed.
Embodiment 5
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：15% organic silicon modified by polyether, the sodium of 6% 1-hydroxy ethylidene-1,1-diphosphonic acid four, 4% thiocarbamide, 1% sodium methylene bis-naphthalene sulfonate
With the water of surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 100r/min stirrings, first organic silicon modified by polyether and the sodium of 1-hydroxy ethylidene-1,1-diphosphonic acid four is mixed and stirred
Mix 10 minutes, then add thiocarbamide, stir 10 minutes, add sodium methylene bis-naphthalene sulfonate, after stirring 5 minutes, add surplus
Deionized water be well mixed.
Embodiment 6
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：10% ethylene oxide-propylene oxide block copolymer, the sodium of 3% iminodisuccinic acid four, 2% methenamine,
The water of 0.5% naphthalene sulfonic acid-formaldehyde condensation product sodium salt and surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 80r/min stirrings, first by ethylene oxide-propylene oxide block copolymer and imino-diacetic amber
Sour four sodium mix 10 minutes, then add thiocarbamide, stir 5 minutes, add naphthalene sulfonic acid-formaldehyde condensation product sodium salt, stirring 3
After minute, the deionized water for adding surplus is well mixed.
Comparative example 1
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：11%Surfynol-104,3% thiocarbamide, the water of 0.7% dispersing agent MF and surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 70r/min stirrings, first Surfynol-104 and thiocarbamide is mixed 8 minutes, add Asia
The double methyl naphthalene sulfonic acid sodium of methyl, after stirring 3 minutes, the deionized water for adding surplus is well mixed.
Comparative example 2
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：11%Surfynol-104, the sodium of 3.5% iminodisuccinic acid four, 0.7% dispersing agent MF and
The water of surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 70r/min stirrings, Surfynol-104 and the sodium of iminodisuccinic acid four are first mixed 8
Minute, dispersing agent MF is then added, after stirring 3 minutes, the deionized water for adding surplus is well mixed.
Comparative example 3
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：The sodium of 3.5% iminodisuccinic acid four, 3% thiocarbamide, the water of 0.7% dispersing agent MF and surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 70r/min stirrings, the sodium of iminodisuccinic acid four and thiocarbamide are first mixed 8 minutes, so
After add dispersing agent MF, after stirring 3 minutes, the deionized water for adding surplus is well mixed.
Comparative example 4
A kind of neutral environment-friendly cleaning agent, it is based on 100% by the gross mass of the cleaning agent, includes following mass percent
Raw material：11%Surfynol-104, the sodium of 3.5% iminodisuccinic acid four, the water of 3% thiocarbamide and surplus.
The preparation method of the neutral environment-friendly cleaning agent includes：
(1) each raw material is weighed by above-mentioned mass percent.
(2) under rotating speed 70r/min stirrings, first ethoxylated acetylenic glycols and the sodium of iminodisuccinic acid four is mixed and stirred
Mix 10 minutes, then add thiocarbamide, stir 8 minutes, the deionized water for adding surplus is well mixed.
Same cold-reduced sheet to be cleaned is placed in above-described embodiment 1~6 at normal temperatures respectively and be prepared by comparative example 1~4
Cleaning agent in carry out soaking and washing, and the phosphorus content of the cleaning agent prepared to embodiment 1~6 and comparative example 1~4, clean
Rate, descaling rate and Roche foam height are detected, and testing result is as shown in table 1.
Wherein, rate and descaling rate are cleaned：It is measured according to GB/T 25148-2010 standards.
Table 1
| Sample | The rate of cleaning | Descaling rate | Roche foam height | Phosphorus content |
| Embodiment 1 | 93.5% | 93.2% | 0ml | 0mg |
| Embodiment 2 | 95.3% | 94.6% | 0ml | 0mg |
| Embodiment 3 | 94.2% | 93.9% | 0ml | 0mg |
| Embodiment 4 | 98.7% | 96.5% | 0ml | 0mg |
| Embodiment 5 | 97.6% | 95.1% | 0ml | 0mg |
| Embodiment 6 | 93.1% | 91.8% | 0ml | 0mg |
| Comparative example 1 | 82.1% | 80.3% | 0ml | 0mg |
| Comparative example 2 | 78.7% | 77.2% | 0ml | 0mg |
| Comparative example 3 | 73.2% | 52.1% | 0ml | 0mg |
| Comparative example 4 | 76.4% | 78.2% | 0ml | 0mg |
From above-mentioned table 1, the neutral environment-friendly cleaning agent that the embodiment of the present invention 1~6 is prepared is not phosphorous, is used for
Foam is not produced in cleaning process, it has good cleaning performance to metal works.It is prepared relative to comparative example 1~4
Cleaning agent clean rate and descaling rate and be obviously improved.
In summary, the present invention is combined using surfactant, chelating agent, dispersant and corrosion inhibiter, obtained cleaning
Agent in neutrality, Environmentally-friephosphorus-free phosphorus-free, without polyoxyethylene alkylphenol ether (APEO) class material, do not pollute the environment and water source, to gold
Metal work-pieces have good cleaning and descaling effect；And the cleaning agent normal temperature can just use, it is not necessary to heat, save the energy.
The preferred embodiments of the present invention are above are only, are not intended to limit the invention, for those skilled in the art
For member, inventive formulation and preparation technology can have various modifications and variations.Within the spirit and principles of the invention,
Any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. neutral environment-friendly cleaning agent, it is characterised in that：It is based on 100% by the gross mass of the cleaning agent, includes following matter Measure the raw material of percentage：Surfactant 10~15%, chelating agent 3~6%, dispersant 0.5~1%, the and of corrosion inhibiter 2~4% The water of surplus.
- 2. neutral environment-friendly cleaning agent according to claim 1, it is characterised in that：Gross mass by the cleaning agent is 100% meter, include the raw material of following mass percent：Surfactant 12~14%, chelating agent 4~5%, dispersant 0.6~ 0.8%th, corrosion inhibiter 2~3% and the water of surplus.
- 3. neutral environment-friendly cleaning agent according to claim 1 or 2, it is characterised in that：The surfactant is ethyoxyl Change the one or more in acetylenic glycols, ethylene oxide-propylene oxide block copolymer, organic silicon modified by polyether.
- 4. neutral environment-friendly cleaning agent according to claim 1 or 2, it is characterised in that：Described chelating agent be sodium tartrate, One or both of the sodium of 1-hydroxy ethylidene-1,1-diphosphonic acid four and the sodium of iminodisuccinic acid four.
- 5. neutral environment-friendly cleaning agent according to claim 1 or 2, it is characterised in that：Described corrosion inhibiter is thiocarbamide or crow Lip river tropine.
- 6. neutral environment-friendly cleaning agent according to claim 1 or 2, it is characterised in that：Described dispersant is di-2-ethylhexylphosphine oxide One kind in methyl naphthalene sulfonic acid sodium, sodium methylene bis-naphthalene sulfonate and naphthalene sulfonic acid-formaldehyde condensation product sodium salt.
- 7. neutral environment-friendly cleaning agent according to claim 1 or 2, it is characterised in that：The water is deionized water.
- A kind of 8. preparation method of neutral environment-friendly cleaning agent, it is characterised in that：The neutral environment-friendly cleaning agent be claim 1~ Neutral environment-friendly cleaning agent described in 7 any one, the preparation method comprise the following steps：Surfactant, chelating agent, dispersant, corrosion inhibiter and water are well mixed.
- 9. the preparation method of neutral environment-friendly cleaning agent according to claim 8, it is characterised in that：The preparation method bag Include：First surfactant and chelating agent are stirred, corrosion inhibiter, dispersant and water is sequentially added and is uniformly mixed.
- 10. the preparation method of neutral environment-friendly cleaning agent according to claim 9, it is characterised in that：The mixing speed is 50~100r/min.
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| CN109554717A (en) * | 2018-12-28 | 2019-04-02 | 广州旭淼新材料科技有限公司 | Environmentally friendly Wax removal water of the low bubble of a kind of neutrality and preparation method thereof |
| CN109706464A (en) * | 2018-11-23 | 2019-05-03 | 佛山市海明威生态科技股份有限公司 | A kind of neutrality rust remover and preparation method thereof |
| CN110982642A (en) * | 2019-12-03 | 2020-04-10 | 华阳新兴科技（天津）集团有限公司 | Neutral silicone oil silicone grease cleaning agent and preparation method and application thereof |
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Application publication date: 20180406 |