CN110528008A - A kind of preparation method of low temperature resistant degreasing agent - Google Patents
A kind of preparation method of low temperature resistant degreasing agent Download PDFInfo
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- CN110528008A CN110528008A CN201910723015.3A CN201910723015A CN110528008A CN 110528008 A CN110528008 A CN 110528008A CN 201910723015 A CN201910723015 A CN 201910723015A CN 110528008 A CN110528008 A CN 110528008A
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- degreasing agent
- low temperature
- preparation
- temperature resistant
- temperature
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- 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
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate
- D01F9/17—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate from lignin
Abstract
The present invention relates to a kind of preparation methods of low temperature resistant degreasing agent, belong to metalwork technical field of surface.The present invention is made using sawdust and bamboo chip as raw material to reaction solution, then tunning will be made to reaction solution and bed-silt mixed fermentation, re-evaporation concentration, high-temperature process, by modified product and phthalic anhydride, neopelex is blended, calcium carbonate powder is eventually adding to react up to low temperature resistant degreasing agent, lignin during fermentative degradation, the carbochain chain rupture of organic fiber ingredient, generate the shorter organic matter of strand, organic matter is set to be easy to adsorb each ingredient in degreasing agent, lipid components are easy to reunite, it is easily removed, increase clean effect, reinforce degreasing effect, by plant fiber, lignin etc. carries out high temperature carbonization processing, molecular surface structures fluffy, concave-convex surface texture makes degreasing agent more easily adsorb the effective component in degreasing agent, to improve the resistance to low temperature of degreasing agent, it has broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation methods of low temperature resistant degreasing agent, belong to metalwork technical field of surface.
Background technique
Metal is as the material being commonly used in a kind of production and living equipment, daily using extremely wide, but
In actual use, it generally requires to carry out equipment the operation such as refuel, thus, it be easy to cause and adheres to compared with many greases of sauce, and equipment
Used under unshielded environment for a long time, its surface caused to become easily infected by more dust so that equipment surface metal shell compared with
It is easy dirty change oil, and often grease is difficult to clean up using cleanings such as conventional water, is easy so that metal surface generates oil
Film.
Degreasing agent is the product for removing body surface greasy dirt, and before metal surface in processing, degreasing is extremely important
The step of.The action principle of degreasing agent is that saponification work can occur with the vegetable and animals oils of surface of steel plate for sodium hydroxide in degreasing agent
With splitting away off, be dissolved into water from surface of steel plate after generating soluble soda soap.Additive in degreasing agent can moisten,
Oil pollution substance existing for infiltration metal surface converts emulsifying for polluter by peptizaiton and emulsification
State makes it become water-soluble substances by slightly solubility substance, increases its solubility, to remove from steel surface.
Currently, common cleaning and degreasing agent mainly includes alkaline defatting agent, lotion degreasing agent and three kinds of solvent degreasing agent.Alkali
Property degreasing agent, is made of, including composite highly effective degreasing agent, high temperature strong force degreaser etc. alkali, chelating agent and surfactant；Lotion
Degreasing agent can remove the dirt of metal surface using the wetability of surfactant, impregnability, emulsibility and dispersibility.One
As using one of surfactants such as anionic, cationic, non-ionic or several mixtures, and system is diluted with water
At lotion；Solvent degreasing agent, using infusion process or steaming process degreasing, the solvent mainly used has halogenated hydrocarbon solvent and fluorohydrocarbon molten
Agent etc..
Currently, the without phosphorus water base degreasing agent for being suitable for steel and zinc material is usually by alkali salt and surfactant structure
At wherein most of alkali salt uses the inorganic base salts such as hydroxide, silicate and carbonate.Hydroxide, silicate with
And the inorganic base salts such as carbonate are not only cheap, are very helpful to cleaning force, especially exist in the phosphorous cleaning additive of limitation
After use in degreasing agent, they become the main wash auxiliary agent added in degreasing agent instantly.Even if but they are subsequent
It repeatedly can still remain on processed workpiece surface after washing, to produce a very large impact later process, such as influence to apply
Appearance, adhesion performance and the corrosion resistance of layer.Such as sodium metasilicate, the silicic acid that hydrolysis generates jelly suspends in the solution,
There is dispersion and stable to dirt, the redeposition of dirt on the surface can be prevented.But there is its larger using sodium metasilicate
Limitation.On the one hand, sodium metasilicate, especially sodium orthosilicate alkalinity is stronger, has stronger irritation to human skin；Another party
Face, the problem using sodium metasilicate maximum are that it encounters strong acid and can generate free silicic acid, are easy to stick in surface to be cleaned, become not
It is dissolved in the film of water, not easy-clear, the quality of next process can be seriously affected.
Degreasing agent prescription based on surfactant is unlikely to damage the quality of metal product when cleaning metal surface, and
And a small amount of degreasing agent can be such that a large amount of grease emulsifying disperses, and be ideal so that grease be made to be easy to be detached from metal surface
A kind of metal cleaner.Degreasing agent prescription containing surfactant relies primarily on its emulsification to the removal of grease stain on metallic surface
Effect.But substance of this kind water solubility is weaker, is not easy to rinse, often in one layer of adsorbed film of substrate remained on surface, therefore second in being formulated
Alcohol can be dissolved removal.In addition, Degreasant composition used in the prior art generally uses temperature more than room temperature, when
It is lower using temperature, and such as at subzero 10 DEG C, Degreasant composition viscosity increases, it is difficult to uniformly effective over metal watch
Degreasing is carried out in face of it.Therefore, it is located in the manufacturing enterprise of severe cold area to guarantee degreasing effect, in storage, uses degreasing agent etc.
Link is necessary for it and improves higher environment temperature, to unnecessarily improve production cost.
Therefore, it is badly in need of inventing a kind of degreasing agent for being able to solve the above problem and is of great significance.
Summary of the invention
The technical problems to be solved by the invention: increasing for degreasing agent viscosity under current cryogenic conditions, degreasing effect drop
Low, degreasing agent cleaning effect is bad, and dirt is made to be attached to the defect of workpiece surface, provides a kind of preparation of low temperature resistant degreasing agent
Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
The specific preparation step of low temperature resistant degreasing agent are as follows:
(1) modified product, phthalic anhydride, the ethanol solution that mass fraction is 30~40%, neopelex are thrown
Enter in reaction kettle, 30~40min is mixed with the revolving speed of 400~500r/min with agitating device, prefabricated dispersion liquid is made, it will
Reactor temperature is increased to 60~70 DEG C, and constant temperature stands 50~60min；
(2) sulfuric acid solution that mass fraction is 30~40% is added dropwise into reaction kettle and adjusts pH value to 3~4, with blender continue with
2~3h is mixed in the revolving speed of 400~500r/min, and acid reaction liquid is made, powdered sodium carbonate is added into reaction kettle, followed by
30~40min of continuous stirring, filters after stirring and obtains filtrate to get low temperature resistant degreasing agent；
The specific preparation step of modified product are as follows:
Enriched product is put into tube furnace, tubular type in-furnace temperature is increased to 110~120 DEG C, constant temperature preheats 60~80min,
It is filled with nitrogen into tube furnace, tubular type in-furnace temperature is continued to increase, heat-treated products are made in 30~50min of high-temperature process, will
Heat-treated products are put into planetary ball mill, and 60 are ground under conditions of revolving speed is 100~120r/min and ratio of grinding media to material is 10:1
Modified product is made in~80min；
The specific preparation step of enriched product are as follows:
(1) it will be pulverized and mixed obtained mixture in sawdust and bamboo chip investment pulverizer, is 6~10% by mixture and mass fraction
Hydrochloric acid investment beaker in, 40~50min is mixed with the revolving speed of 300~400r/min with blender, mixed serum is made,
The sodium hydroxide solution that mass fraction is 13~15% is added dropwise into beaker and adjusts pH value to 11~12；
(2) it places the beaker in resistance heating set, increases jacket temperature to 70~90 DEG C, 50~70min of isothermal reaction, react
The acetic acid solution that mass fraction 12~16% is added dropwise in backward beaker adjusts pH value to neutrality and is made to reaction solution, will to reaction solution,
Bed-silt and glucose put into fermenter；
(3) fermentor is placed in the greenhouse that temperature is 32~36 DEG C, constant temperature stands 3~5 days, puts into material after standing and filters
It is filtered in machine and obtains filtrate, tunning is made, tunning is put into Rotary Evaporators, be 200~240r/ in revolving speed
Min and temperature are concentrated by evaporation 80~100min under conditions of being 50~60 DEG C, and enriched product is made.
Preferably according to parts by weight, modified product is 13~15 parts, phthalic anhydride is 2~4 parts, mass fraction is
30~40% ethanol solution is 24~28 parts, neopelex is 0.5~0.7 part.
The quality for the powdered sodium carbonate being added into reaction kettle is the 12~14% of acid reaction liquid quality.
The temperature of high-temperature process is 430~450 DEG C in tube furnace in the specific preparation step of modified product.
Sawdust is more preferably birch sawdust, pine sawdust, poplar sawdust in the specific preparation step (1) of enriched product
It is one such or it is a variety of mix in any proportion, the bamboo chip is more preferably that moso bamboo, black bamboo, square bamboo are one such
Or it a variety of mixes in any proportion.
The mass ratio of sawdust and bamboo chip is 1:5 in the specific preparation step (1) of enriched product.
The mass ratio for the hydrochloric acid that mixture and mass fraction are 6~10% in the specific preparation step (1) of enriched product is 1:
5。
It in the specific preparation step (2) of enriched product preferably according to parts by weight, is 22~26 parts, river bed to reaction solution
Mud is 3~5 parts, glucose is 1~2 part.
The method have the benefit that:
(1) sawdust and bamboo chip are pulverized and mixed by the present invention first, are stirred to react after mixing with hydrochloric acid investment beaker, are dripped after reaction
Add lye to adjust pH value to alkalinity heating reaction to be made to reaction solution, will then mix investment fermentation with bed-silt to reaction solution
It ferments in tank, is filtered after fermentation and obtain the obtained tunning of filtrate, then tunning is concentrated by evaporation, enriched product is made, it will be dense
Modified product is made in contracting product high-temperature process, and then modified product is blended with phthalic anhydride, neopelex,
After adjusting pH value to acidity after blending, reaction is mixed, is eventually adding powdered sodium carbonate and is stirred to react up to low temperature resistant degreasing
Agent, the present invention sawdust is mixed with bamboo chip after by acid soak and lye pyroreaction, make lignin in bamboo chip and sawdust,
The ingredients such as organic fiber are separated, the carbochain chain rupture of lignin, organic fiber ingredient during fermentative degradation, are generated and are divided
The shorter organic matter of subchain makes organic matter be easy to adsorb in degreasing agent to increase the whole contact area with the external world of organic matter
Each ingredient, the effective component in degreasing agent are reunited around organic principle, make degreasing agent in skimming processes, lipid components are easily rolled into a ball
It is poly-, it is easily removed, enhances clean effect, then the organic principle extracted from sawdust and bamboo chip is subjected to high-temperature process, make its table
A large amount of pore structure is formed in the structure of face, so that it is easy to improve absorption property with extraneous contact area increase, is reinforced degreasing
Effect；
(2) ingredients such as the plant fiber, the lignin that extract from bamboo chip, sawdust are carried out high temperature carbonization processing by the present invention, are generated
Carbon fiber, carbon particle structure, under the high temperature conditions, molecular surface structures fluffy is easily formed porous, concave-convex surface texture
So that degreasing agent is more easily adsorbed the effective component in degreasing agent, while carbon-fibre component can increase heat-conductive characteristic, makes to take off
Each ingredient is heated evenly in rouge agent, and guarantees the degreasing effect of degreasing agent at low ambient temperatures, to improve the resistance to low of degreasing agent
Warm nature energy, has broad application prospects.
Specific embodiment
It will be pulverized and mixed obtained mixture in sawdust and bamboo chip 1:5 in mass ratio investment pulverizer, by mixture and quality
The hydrochloric acid 1:5 in mass ratio that score is 6~10% is put into beaker, is mixed with blender with the revolving speed of 300~400r/min
Mixed serum is made in 40~50min, and the sodium hydroxide solution that mass fraction is 13~15% is added dropwise into beaker and adjusts pH value to 11
~12；Above-mentioned beaker is placed in resistance heating set, increases jacket temperature to 70~90 DEG C, 50~70min of isothermal reaction, instead
The acetic acid solution that mass fraction 12~16% is added dropwise in Ying Houxiang beaker adjusts pH value to neutrality and is made to reaction solution, by weight
Number meter, 22~26 parts are putted into fermenter to reaction solution, 3~5 parts of bed-silts and 1~2 part of glucose；By above-mentioned fermentor
It is placed in the greenhouse that temperature is 32~36 DEG C, constant temperature stands 3~5 days, puts into suction filtration machine material after standing and is filtered
Tunning is made in liquid, and tunning is put into Rotary Evaporators, revolving speed be 200~240r/min and temperature be 50~
It is concentrated by evaporation 80~100min under conditions of 60 DEG C, enriched product is made；Above-mentioned enriched product is put into tube furnace, by tubular type
In-furnace temperature is increased to 110~120 DEG C, and constant temperature preheats 60~80min, nitrogen is filled with into tube furnace, by tubular type in-furnace temperature
Continue to be increased to 430~450 DEG C, heat-treated products are made in 30~50min of high-temperature process, and heat-treated products are put into planetary ball mill
In machine, 60~80min is ground under conditions of revolving speed is 100~120r/min and ratio of grinding media to material is 10:1, modified product is made；It presses
Parts by weight meter, by 13~15 parts of above-mentioned modified products, 2~4 parts of phthalic anhydrides, 24~28 parts of mass fractions be 30~
In 40% ethanol solution, 0.5~0.7 part of neopelex investment reaction kettle, with agitating device with 400~500r/
The revolving speed of min is mixed 30~40min and prefabricated dispersion liquid is made, and reactor temperature is increased to 60~70 DEG C, constant temperature is quiet
Set 50~60min；The sulfuric acid solution that mass fraction is 30~40% is added dropwise into aforesaid reaction vessel and adjusts pH value to 3~4, with stirring
It mixes device to continue that 2~3h is mixed with the revolving speed of 400~500r/min, acid reaction liquid is made, be added into reaction kettle acid
The powdered sodium carbonate of reaction solution quality 12~14% is further continued for 30~40min of stirring, filters after stirring and obtains filtrate to get resistance to low
Warm degreasing agent.
Embodiment 1
Sawdust: birch sawdust
Bamboo chip: bamboo plate
The preparation of enriched product:
It will be pulverized and mixed obtained mixture in birch sawdust and bamboo plate 1:5 in mass ratio investment pulverizer, by mixture and matter
It measures the hydrochloric acid 1:5 in mass ratio that score is 6% to put into beaker, 40min system is mixed with the revolving speed of 300r/min with blender
Mixed serum is obtained, the sodium hydroxide solution that mass fraction is 13% is added dropwise into beaker and adjusts pH value to 11；Above-mentioned beaker is placed in
In resistance heating set, jacket temperature is increased to 70 DEG C, isothermal reaction 50min, mass fraction 12% is added dropwise after reaction into beaker
Acetic acid solution adjust pH value to neutrality be made to reaction solution, according to parts by weight, by 22 parts to reaction solution, 3 parts of bed-silts
It is putted into fermenter with 1 part of glucose；Above-mentioned fermentor is placed in the greenhouse that temperature is 32 DEG C, constant temperature stands 3 days, after standing
Material is put into filter in suction filtration machine and obtains filtrate, tunning is made, tunning is put into Rotary Evaporators, in revolving speed
It is concentrated by evaporation 80min under conditions of being 50 DEG C for 200r/min and temperature, enriched product is made.
The preparation of modified product:
Above-mentioned enriched product is put into tube furnace, tubular type in-furnace temperature is increased to 110 DEG C, constant temperature preheats 60min, to tubular type
It is filled with nitrogen in furnace, tubular type in-furnace temperature is continued to be increased to 430 DEG C, heat-treated products are made in high-temperature process 30min, at heat
It manages in product investment planetary ball mill, grinding 60min, which is made, under conditions of revolving speed is 100r/min and ratio of grinding media to material is 10:1 changes
Property product.
The preparation of low temperature resistant degreasing agent:
According to parts by weight, 13 parts of above-mentioned modified products, 2 parts of phthalic anhydrides, 24 parts of mass fractions are molten for 30% ethyl alcohol
In liquid, 0.5 part of neopelex investment reaction kettle, 30min is mixed with the revolving speed of 400r/min with agitating device
Prefabricated dispersion liquid is made, reactor temperature is increased to 60 DEG C, constant temperature stands 50min；Quality is added dropwise into aforesaid reaction vessel
The sulfuric acid solution that score is 30% adjusts pH value to 3, is continued that 2h is mixed with the revolving speed of 400r/min with blender, acid is made
Property reaction solution, into reaction kettle be added acid reaction liquid quality 12% powdered sodium carbonate, be further continued for stirring 30min, taken out after stirring
Filter obtains filtrate to get low temperature resistant degreasing agent.
Embodiment 2
Sawdust: pine sawdust
Bamboo chip: black bamboo piece
The preparation of enriched product:
It will be pulverized and mixed obtained mixture in pine sawdust and black bamboo piece 1:5 in mass ratio investment pulverizer, by mixture and matter
It measures the hydrochloric acid 1:5 in mass ratio that score is 8% to put into beaker, 45min system is mixed with the revolving speed of 350r/min with blender
Mixed serum is obtained, the sodium hydroxide solution that mass fraction is 14% is added dropwise into beaker and adjusts pH value to 11；Above-mentioned beaker is placed in
In resistance heating set, jacket temperature is increased to 80 DEG C, isothermal reaction 60min, mass fraction 14% is added dropwise after reaction into beaker
Acetic acid solution adjust pH value to neutrality be made to reaction solution, according to parts by weight, by 24 parts to reaction solution, 4 parts of bed-silts
It is putted into fermenter with 1 part of glucose；Above-mentioned fermentor is placed in the greenhouse that temperature is 34 DEG C, constant temperature stands 4 days, after standing
Material is put into filter in suction filtration machine and obtains filtrate, tunning is made, tunning is put into Rotary Evaporators, in revolving speed
It is concentrated by evaporation 90min under conditions of being 55 DEG C for 220r/min and temperature, enriched product is made.
The preparation of modified product:
Above-mentioned enriched product is put into tube furnace, tubular type in-furnace temperature is increased to 115 DEG C, constant temperature preheats 70min, to tubular type
It is filled with nitrogen in furnace, tubular type in-furnace temperature is continued to be increased to 440 DEG C, heat-treated products are made in high-temperature process 40min, at heat
It manages in product investment planetary ball mill, grinding 70min, which is made, under conditions of revolving speed is 110r/min and ratio of grinding media to material is 10:1 changes
Property product.
The preparation of low temperature resistant degreasing agent:
According to parts by weight, 14 parts of above-mentioned modified products, 3 parts of phthalic anhydrides, 26 parts of mass fractions are molten for 35% ethyl alcohol
In liquid, 0.6 part of neopelex investment reaction kettle, 35min is mixed with the revolving speed of 450r/min with agitating device
Prefabricated dispersion liquid is made, reactor temperature is increased to 65 DEG C, constant temperature stands 55min；Quality is added dropwise into aforesaid reaction vessel
The sulfuric acid solution that score is 35% adjusts pH value to 3, is continued that 2h is mixed with the revolving speed of 450r/min with blender, acid is made
Property reaction solution, into reaction kettle be added acid reaction liquid quality 13% powdered sodium carbonate, be further continued for stirring 35min, taken out after stirring
Filter obtains filtrate to get low temperature resistant degreasing agent.
Embodiment 3
Sawdust: poplar sawdust
Bamboo chip: square bamboo chip
The preparation of enriched product:
It will be pulverized and mixed obtained mixture in poplar sawdust and side bamboo chip 1:5 in mass ratio investment pulverizer, by mixture and matter
It measures the hydrochloric acid 1:5 in mass ratio that score is 10% to put into beaker, 50min is mixed with the revolving speed of 400r/min with blender
Mixed serum is made, the sodium hydroxide solution that mass fraction is 15% is added dropwise into beaker and adjusts pH value to 12；Above-mentioned beaker is set
In resistance heating set, jacket temperature is increased to 90 DEG C, mass fraction is added dropwise in isothermal reaction 70min into beaker after reaction
16% acetic acid solution adjusts pH value to neutrality and is made to reaction solution, and according to parts by weight, 26 parts are become silted up to reaction solution, 5 parts of river bed
Mud and 2 parts of glucose put into fermenter；Above-mentioned fermentor is placed in the greenhouse that temperature is 36 DEG C, constant temperature stands 5 days, stands
Afterwards material is put into filter in suction filtration machine and obtain filtrate, tunning is made, tunning is put into Rotary Evaporators, turned
Speed be 240r/min and temperature be 60 DEG C under conditions of be concentrated by evaporation 100min, be made enriched product.
The preparation of modified product:
Above-mentioned enriched product is put into tube furnace, tubular type in-furnace temperature is increased to 120 DEG C, constant temperature preheats 80min, to tubular type
It is filled with nitrogen in furnace, tubular type in-furnace temperature is continued to be increased to 450 DEG C, heat-treated products are made in high-temperature process 50min, at heat
It manages in product investment planetary ball mill, grinding 80min, which is made, under conditions of revolving speed is 120r/min and ratio of grinding media to material is 10:1 changes
Property product.
The preparation of low temperature resistant degreasing agent:
According to parts by weight, 15 parts of above-mentioned modified products, 4 parts of phthalic anhydrides, 28 parts of mass fractions are molten for 40% ethyl alcohol
In liquid, 0.7 part of neopelex investment reaction kettle, 40min is mixed with the revolving speed of 500r/min with agitating device
Prefabricated dispersion liquid is made, reactor temperature is increased to 70 DEG C, constant temperature stands 60min；Quality is added dropwise into aforesaid reaction vessel
The sulfuric acid solution that score is 40% adjusts pH value to 4, is continued that 3h is mixed with the revolving speed of 500r/min with blender, acid is made
Property reaction solution, into reaction kettle be added acid reaction liquid quality 14% powdered sodium carbonate, be further continued for stirring 40min, taken out after stirring
Filter obtains filtrate to get low temperature resistant degreasing agent.
Comparative example 1: it is essentially identical with the preparation method of example 1, it has only the difference is that enriched product is not added.
Comparative example 2: it is essentially identical with the preparation method of example 2, it has only the difference is that modified product is not added.
Comparative example 3: the degreasing agent of Nanjing company production.
Degreasing agent in low temperature resistant degreasing agent produced by the present invention and comparative example is detected, testing result such as 1 institute of table
Show:
Cleaning force test
Reference standard JB/T4323.2 is measured, and all degreasing agent cleaning ability tests are measured at 25 DEG C in table 1.
Performance test is remained after rinsing
" test of rinsing performance method " is measured in reference standard JB/T4323.2.
Foam height test
The working solution for preparing 5% mass concentration is packed into the degreasant solution that 30mL has been prepared with the tool plug graduated cylinder of 100mL, closes the lid
Speed under shaking 50 with 30s shakes 3min, is then allowed to stand upright, and foam height (including degreasing fluid height is observed in 30~60s
Degree).
Lower temperature resistance test
Reference standard JB/T4323.2 is measured.
1 performance measurement result of table
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Degreasing time (min) | 3.6 | 3.3 | 3.1 | 5.2 | 5.9 | 4.3 |
| High-temperature stability (60 DEG C, 2h) | It is qualified | It is qualified | It is qualified | It is unqualified | It is unqualified | It is unqualified |
| Low-temperature stability (0 DEG C, for 24 hours) | It is qualified | It is qualified | It is qualified | It is unqualified | It is qualified | It is unqualified |
| Cleaning force (3% solution, 60 DEG C) | 98.1 | 97.6 | 98.5 | 92.4 | 93.8 | 94.2 |
| Foam height (mL) | 37 | 34 | 31 | 39 | 46 | 43 |
| Performance is remained after cleaning | Noresidue | Noresidue | Noresidue | There is a small amount of residue | There are a large amount of residues | There is a small amount of residue |
| Lower temperature resistance (3% solution, -10 DEG C) | 93.4 | 93.8 | 94.5 | 81.0 | 79.6 | 77.2 |
From the data in table 1, it can be seen that low temperature resistant degreasing agent produced by the present invention, has long-acting lasting degreasing effect, blistering is held less
Long, degreasing speed is fast, noresidue after cleaning, so as to shorten the time of entire degreasing operation, and still protects at low ambient temperatures
Good mobility is held, realize also has preferable degreasing effect at low ambient temperatures, has a extensive future.
Claims (8)
1. a kind of preparation method of low temperature resistant degreasing agent, it is characterised in that specific preparation step are as follows:
(1) modified product, phthalic anhydride, the ethanol solution that mass fraction is 30~40%, neopelex are thrown
Enter in reaction kettle, 30~40min is mixed with the revolving speed of 400~500r/min with agitating device, prefabricated dispersion liquid is made, it will
Reactor temperature is increased to 60~70 DEG C, and constant temperature stands 50~60min；
(2) sulfuric acid solution that mass fraction is 30~40% is added dropwise into reaction kettle and adjusts pH value to 3~4, with blender continue with
2~3h is mixed in the revolving speed of 400~500r/min, and acid reaction liquid is made, powdered sodium carbonate is added into reaction kettle, followed by
30~40min of continuous stirring, filters after stirring and obtains filtrate to get low temperature resistant degreasing agent；
The specific preparation step of the modified product are as follows:
Enriched product is put into tube furnace, tubular type in-furnace temperature is increased to 110~120 DEG C, constant temperature preheats 60~80min,
It is filled with nitrogen into tube furnace, tubular type in-furnace temperature is continued to increase, heat-treated products are made in 30~50min of high-temperature process, will
Heat-treated products are put into planetary ball mill, and 60 are ground under conditions of revolving speed is 100~120r/min and ratio of grinding media to material is 10:1
Modified product is made in~80min；
The specific preparation step of the enriched product are as follows:
(1) it will be pulverized and mixed obtained mixture in sawdust and bamboo chip investment pulverizer, is 6~10% by mixture and mass fraction
Hydrochloric acid investment beaker in, 40~50min is mixed with the revolving speed of 300~400r/min with blender, mixed serum is made,
The sodium hydroxide solution that mass fraction is 13~15% is added dropwise into beaker and adjusts pH value to 11~12；
(2) it places the beaker in resistance heating set, increases jacket temperature to 70~90 DEG C, 50~70min of isothermal reaction, react
The acetic acid solution that mass fraction 12~16% is added dropwise in backward beaker adjusts pH value to neutrality and is made to reaction solution, will to reaction solution,
Bed-silt and glucose put into fermenter；
(3) fermentor is placed in the greenhouse that temperature is 32~36 DEG C, constant temperature stands 3~5 days, puts into material after standing and filters
It is filtered in machine and obtains filtrate, tunning is made, tunning is put into Rotary Evaporators, be 200~240r/ in revolving speed
Min and temperature are concentrated by evaporation 80~100min under conditions of being 50~60 DEG C, and enriched product is made.
2. a kind of preparation method of low temperature resistant degreasing agent according to claim 1, it is characterised in that: preferably by weight
Number meter, the ethyl alcohol that the modified product is 13~15 parts, phthalic anhydride is 2~4 parts, mass fraction is 30~40% are molten
Liquid is 24~28 parts, neopelex is 0.5~0.7 part.
3. a kind of preparation method of low temperature resistant degreasing agent according to claim 1, it is characterised in that: described to reaction kettle
The quality of the powdered sodium carbonate of middle addition is the 12~14% of acid reaction liquid quality.
4. a kind of preparation method of low temperature resistant degreasing agent according to claim 1, it is characterised in that: modified product it is specific
The temperature of high-temperature process is 430~450 DEG C in tube furnace described in preparation step.
5. a kind of preparation method of low temperature resistant degreasing agent according to claim 1, it is characterised in that: enriched product it is specific
Sawdust described in preparation step (1) is more preferably that birch sawdust, pine sawdust, poplar sawdust are one such or a variety of
Mix in any proportion, the bamboo chip be more preferably moso bamboo, black bamboo, square bamboo it is one such or it is a variety of in any proportion
Mixing.
6. a kind of preparation method of low temperature resistant degreasing agent according to claim 1, it is characterised in that: enriched product it is specific
The mass ratio of sawdust described in preparation step (1) and bamboo chip is 1:5.
7. a kind of preparation method of low temperature resistant degreasing agent according to claim 1, it is characterised in that: enriched product it is specific
The mass ratio for the hydrochloric acid that mixture described in preparation step (1) and mass fraction are 6~10% is 1:5.
8. a kind of preparation method of low temperature resistant degreasing agent according to claim 1, it is characterised in that: enriched product it is specific
In preparation step (2) it is preferred according to parts by weight, described to reaction solution is 22~26 parts, bed-silt is 3~5 parts, Portugal
Grape sugar is 1~2 part.
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| US20080146483A1 (en) * | 2006-12-15 | 2008-06-19 | Shenzhen Futaihong Precision Industry Co., Ltd. | Degreasing agent |
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| CN105369638A (en) * | 2014-08-25 | 2016-03-02 | 江苏欣隆羽绒有限公司 | Down feather degreasing agent |
| CN106835166A (en) * | 2016-12-02 | 2017-06-13 | 湖南德莱恩新材料科技有限公司 | Low-temperature environment-friendly cleaning agent |
| CN108441871A (en) * | 2018-04-02 | 2018-08-24 | 裴泽民 | A kind of preparation method of metal residual oil cleaning agent |
| CN109897578A (en) * | 2019-02-20 | 2019-06-18 | 谭孝花 | A kind of preparation method of electrolyte resistance high temperature resistant pressure sensitive adhesive |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080146483A1 (en) * | 2006-12-15 | 2008-06-19 | Shenzhen Futaihong Precision Industry Co., Ltd. | Degreasing agent |
| CN104918697A (en) * | 2012-11-21 | 2015-09-16 | 欧洲科技销售有限公司 | Degreasing mixture |
| CN103484882A (en) * | 2013-09-25 | 2014-01-01 | 太仓市微贯机电有限公司 | Environment-friendly metal cleaning agent |
| CN105369638A (en) * | 2014-08-25 | 2016-03-02 | 江苏欣隆羽绒有限公司 | Down feather degreasing agent |
| CN106835166A (en) * | 2016-12-02 | 2017-06-13 | 湖南德莱恩新材料科技有限公司 | Low-temperature environment-friendly cleaning agent |
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