CN108641677A - A kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature - Google Patents
A kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature Download PDFInfo
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Abstract
The present invention relates to the liquid preparing technical fields of aircraft outer surface ice-removing and ice-preventing, and in particular to a kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature.The present invention is using potato as raw material, delignification's fiber is obtained through processing, salpeter solution is added into activated carbon mixed liquor, obtain modified activated carbon mixed liquor, microcrystalline cellulose powder, upper liquid, propylene glycol etc. are heated into batch mixing, logical ammonia simultaneously, reaction terminate discharging and obtain the anti-sticking aircraft deicing anti-freeze fluid of low temperature.The microcrystalline cellulose powder extracted by raw material of potato is the fiber easily softened at normal temperatures, during aircraft surfaces freeze because of low temperature, crystal grain can be prevented to form large ice crystals, avoid the formation of ice cube, in addition microcrystalline cellulose its strand in low temperature is in rigidity, it can avoid propylene glycol, ethylene glycol etc. in aircraft deicing anti-freeze fluid and generate hydrated gel in low freezing point, reduce aircraft deicing deicing liquid and aircraft surfaces corrosion of metal is encroached on, have a extensive future.
Description
Technical field
The present invention relates to the liquid preparing technical fields of aircraft outer surface ice-removing and ice-preventing, and in particular to a kind of low temperature is anti-sticking
The preparation method of aircraft deicing anti-freeze fluid.
Background technology
Under the conditions of sleet freezing weather, ground, road or airfield runway easily freeze.Airfield pavement icing is not only possible to make
It makes the turnoff when at aircraft taxi, fatal risk is had more to aircraft landing, to threaten winter road traffic and aviation operation
Safety.A lot of air crashes caused by severe ice and snow weather, flight unit, engineering and dispatch have occurred in World Airways history
Personnel should pay much attention to winter IFR conditions to taking off the serious harm brought.It is general at present most to have
The ice-removing and ice-preventing method of effect is to use aircraft deicing anti-freeze fluid.
The thawing of aircraft deicing anti-freeze fluid has been gathered in the pollutants such as the ice, snow, frost of aircraft surfaces, and further in a timing
It is interior to prevent ice and snow frost etc. from assembling and freezing on aircraft outer surface, ensure winter operation safety.Road surface is kept to rub to greatest extent
Wipe coefficient, it is ensured that aircraft safety normally slides, takeoff and landing, and requires not having the various metals of airframe and special material
There is corrosion attack, to airfield runway cement concrete safety.
Aircraft deicing anti-freeze fluid is mainly by freezing point depressant, thickener, water, pH buffer, corrosion inhibiter, surface-active at present
The compositions such as agent.Airplane deicing basic principle is to reduce ice with aircraft surfaces adhesive force or reduction water in aircraft by certain liquid
The solidification point on anti-icing surface.Working fluid has adiabatic condensation temperature low, strong with anti-icing surface adhesion force with water good mixing property,
There is no the features such as chemical attack effect, nontoxic and fire protecting performance is good to anti-icing surface.Anti-freeze fluid used at present have methanol,
Ethyl alcohol（Alcohol）, ethylene glycol etc..Aircraft deicing anti-freeze fluid as civil aviaton's Winter safety normal operation important leverage substance
Dosage is huge, needs to consume nearly ten thousand tons of petrochemical industry base alcohols every year.But fossil resources is non-renewable, greenhouse carbon dioxide gas
The environmental problem generated is possible to during discharge and use, it has also become the bottleneck problem of international community's sustained economic development.
Become the needs of industry using the aircraft deicing anti-freeze fluid of the sustainable cycle of environmental protection.
Aircraft deicing anti-freeze fluid is primarily present that efficiency time is short at present, and the effect of long-acting deicing can not be played after use, is led
Cause consumption larger, containing to environmentally hazardous substance, the bad problem of environmental protection, security performance.In addition, there is also steady heat storages
Property is not high, cannot meet the stability of metal material the problem of aircraft deicing anti-freeze fluid requirement.
Therefore, developing a kind of aircraft deicing anti-freeze fluid that can be solved the above problems is highly desirable.
Invention content
Present invention mainly solves the technical issues of, it is short to be primarily present efficiency time for current aircraft deicing anti-freeze fluid, makes
The effect that long-acting deicing can not be played after, causes its consumption larger, and aircraft deicing anti-freeze fluid is easy out in low temperature
It now viscosifies sedimentation phenomenon and generates hydrated gel, so that aircraft door, elevator is occurred of short duration bonding and the defect that is stuck, provide
A kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature, it is characterised in that specifically preparation process is：
（1）600~700g potatos are weighed, is put into stone mill and is milled, obtain potato residues, potato residues are put into plastic tub
In, 1000~1200mL water and 500~700mL sodium hydroxide solutions are added into plastic tub, stirs to get potato slurries, it will
Potato slurries are placed in Centrifugal dispersion machine, are centrifuged, and removal supernatant liquor obtains lower layer's filter residue；
（2）Above-mentioned filter residue is placed in beaker, after filter residue 3~5 times is washed with deionized, then it is added into beaker 200~
300mL sodium chlorite solutions adjust pH with glacial acetic acid solution, to beaker heat temperature raising, after isothermal holding, obtain delignification's fibre
Dimension, by delignification's fiber and mixed in hydrochloric acid, heat temperature raising, heat preservation and dryness processing obtains microcrystalline cellulose powder；
（3）Activated carbon and water are mixed to get activated carbon mixed liquor, then salpeter solution is added into activated carbon mixed liquor, heating rises
Temperature, boiling stop heating, and Temperature fall stops stirring, continues to obtain modified activated carbon mixed liquor after being cooled to room temperature；
（4）Above-mentioned modified activated carbon mixed liquor is put into centrifugal separator, starts seperator, is added and goes into centrifugal separator
Ionized water after rinsing the activated carbon isolated, stops that deionized water is added, continues to detach, must wash the activated carbon of charcoal processing；
（5）It counts in parts by weight, by 40~50 parts of gluconic acid mother liquid of sodium and 70~80 parts of chlor-alkali industrial waste waters, 20~30 parts of lifes
Lime, 50~60 parts of activated carbon mixing for washing charcoal processing are placed in reaction kettle, and heat temperature raising obtains suspension, and suspension is placed in
Centrifugal dispersion in supercentrifuge, removal lower layer sediment, obtains upper liquid；
（6）It counts in parts by weight, by 5~10 parts of microcrystalline cellulose powder, 40~50 parts of above-mentioned upper liquids, 10~15 parts of propylene glycol, 30
~40 parts of ethylene glycol, 4~5 parts of sodium carboxymethylcelluloses and 18~20 parts of sodium citrate mixing are placed in batch mixer, heat temperature raising,
And ammonia is passed through into batch mixer, stir mixing, discharging bottling obtains the anti-sticking aircraft deicing anti-freeze fluid of low temperature.
Step（1）Time that is milled in the stone mill is 3~4h, and sodium hydroxide solution mass fraction is 8%, temperature when stirring
Degree is 90~100 DEG C, and Centrifugal dispersion machine rotating speed is 4000~5000r/min, and the centrifugation time is 10~15min.
Step（2）The mass fraction of the sodium chlorite solution is 20~25g/mL, the mass fraction of glacial acetic acid solution
It is 90%, it is 4.8~5.2 that glacial acetic acid solution, which adjusts solution system pH in beaker, is 70~80 to temperature after beaker heat temperature raising
DEG C, the isothermal holding time is 2~3h, and the mass fraction of hydrochloric acid is 10%, and the mass ratio of delignification's fiber and mixed in hydrochloric acid is 1 ︰
2, temperature is 95~105 DEG C after heat temperature raising, and heat preservation and dryness processing time is 2~3h.
Step（3）The granularity of activated carbon is 40~60 mesh, and activated carbon and water mixing quality are than 1: 4, salpeter solution matter
It is 60~70% to measure score, and salpeter solution addition is the 3~5% of activated carbon mixed liquor weight, and temperature is 100 after heat temperature raising
~110 DEG C, digestion time is 4~5h, and it is 70~80 DEG C to stop being cooled down with tap water after heating.
Step（4）Conductivity≤45 μ s/cm of cleaning solution are discharged when the activated carbon that the flushing is isolated, continue to detach
Time is 0.5~1.0h.
Step（5）Described is 40~50 DEG C to temperature after reaction kettle heat temperature raising, supercentrifuge rotating speed is 3000~
4000r/min, Centrifugal dispersion time are 15~18min.
Step（6）The batch mixing rotating speed is 400~500r/min, and temperature is 40~50 DEG C after heat temperature raising, to batch mixing
Be passed through in machine ammonia rate be 4~5L/min, logical ammonia continue to reaction solution pH be 8~9, the stir mixing time be 30~
50min。
The beneficial effects of the invention are as follows：
（1）Potato is milled and potato residues is made by the present invention, centrifuges filtered after addition sodium hydroxide solution soda boiling thereto
Slag, with sodium chlorite solution, glacial acetic acid processing after filter residue is washed, heating and thermal insulation obtains delignification's fiber, by delignification
Microcrystalline cellulose powder is boiled and are dried to obtain to fiber and mixed in hydrochloric acid, and activated carbon and water are mixed to get activated carbon mixed liquor, then to
Salpeter solution is added in activated carbon mixed liquor, heats boiling, modified activated carbon mixed liquor is obtained after being cooled to room temperature with tap water,
Modified activated carbon mixed liquor is placed in centrifugal separator, separation is washed with deionized, obtains the activated carbon for washing charcoal processing, it will
It washes the heating hybrid reaction such as activated carbon, gluconic acid mother liquid of sodium, chlor-alkali industrial waste water, quick lime of charcoal processing and obtains suspension,
It is centrifugally separating to obtain upper liquid, by microcrystalline cellulose powder, upper liquid, propylene glycol, ethylene glycol, sodium carboxymethylcellulose, lemon
Sour sodium etc. heats batch mixing, while logical ammonia, and reaction terminates discharging and obtains the anti-sticking aircraft deicing anti-freeze fluid of low temperature.Obtained by the present invention
Aircraft deicing anti-freeze fluid in preparation process, the microcrystalline cellulose powder extracted by raw material of potato is easily to soften at normal temperatures
Fiber, during aircraft surfaces freeze because of low temperature, microcrystalline cellulose serves as a physical clogging, and crystal grain is prevented to be formed
Large ice crystals, and a small amount of microcrystalline cellulose is enough to prevent the increase of ice crystal, and compared between the ice crystal of small particle, there are stomatas, androgynous
The grain size of ice crystal is smaller in accumulated ice block, and it is more that there are stomatal numbers, and being conducive to aircraft deicing anti-freeze fluid can be in newly formed ice
It is flowed in crystalline substance, reduces freezing point, avoid the formation of ice cube；
（2）Microcrystalline cellulose in the present invention is evenly dispersed in aircraft deicing anti-freeze fluid, is connected to water molecules hydrogen bond and forms weak coagulate
Glue, it is possible to reduce metal salt avoids removing in low temperature due to the too low generation aquation crystalline deposit of temperature in aircraft deicing anti-freeze fluid
Ice anti-freeze fluid such as lifts cabin because viscosity is excessively high to close connecting component on aircraft, hatch door generates cementation, improves aircraft and flies
Capable safety coefficient, in addition microcrystalline cellulose in low temperature its strand in rigidity, can avoid propylene glycol in aircraft deicing anti-freeze fluid,
Ethylene glycol etc. generates hydrated gel in low freezing point, and villaumite extracts drop freezing point metal from chlor-alkali industrial waste water in the present invention
Salt makes waste resource rationally be utilized, and reduces the manufacturing cost of aircraft deicing anti-freeze fluid, and the activated carbon by washing charcoal processing removes
Beavy metal impurity is removed, aircraft deicing deicing liquid is reduced and aircraft surfaces corrosion of metal is encroached on, have a extensive future.
Specific implementation mode
600~700g potatos are weighed, 3~4h of milling in stone mill is put into, obtains potato residues, potato residues are put into modeling
In feed basin, the sodium hydroxide solution that 1000~1200mL water and 500~700mL mass fractions are 8% is added into plastic tub,
After stirring 2~3h under the conditions of 90~100 DEG C, potato slurries are obtained, potato slurries are placed in Centrifugal dispersion machine, with 4000
The rotating speed of~5000r/min centrifuges 10~15min, and removal supernatant liquor obtains lower layer's filter residue；Above-mentioned filter residue is placed in burning
In cup, after filter residue 3~5 times is washed with deionized, then it is 20~25g/mL that 200~300mL mass fractions, which are added, into beaker
Sodium chlorite solution, with mass fraction be 90% glacial acetic acid solution adjust pH to 4.8~5.2,70 are heated to beaker
~80 DEG C, after 2~3h of isothermal holding, delignification's fiber is obtained, the hydrochloric acid that delignification's fiber is 10% with mass fraction is pressed
Mass ratio mixes for 1 ︰ 2, is heated to 95~105 DEG C, after heat preservation and dryness handles 2~3h, obtains microcrystalline cellulose powder；By granularity
The activated carbon of 40~60 mesh is mixed to get activated carbon mixed liquor for 1: 4 in mass ratio with water, then is added into activated carbon mixed liquor
The salpeter solution that mass fraction is 60~70%, salpeter solution addition are the 3~5% of activated carbon mixed liquor weight, heat temperature raising
To 100~110 DEG C, 4~5h of boiling, stop heating, be naturally cooling to 70~80 DEG C, stops stirring, continue after being cooled to room temperature
Obtain modified activated carbon mixed liquor；Above-mentioned modified activated carbon mixed liquor is put into centrifugal separator, starts seperator, to centrifugation
Deionized water is added in seperator, rinses the activated carbon isolated to conductivity≤45 of discharge cleaning solution after μ s/cm, stop plus
Enter deionized water, continue 0.5~1.0h of separation, the activated carbon of charcoal processing must be washed；It counts in parts by weight, by 40~50 parts of quality point
Number for 20% gluconic acid mother liquid of sodium and 70~80 parts of chlor-alkali industrial waste waters, 20~30 parts of quick limes, 50~60 parts wash charcoal processing
Activated carbon mixing be placed in reaction kettle, be heated to 40~50 DEG C, obtain suspension, suspension is placed in supercentrifuge
In with the rotating speed of 3000~4000r/min, 15~18min of Centrifugal dispersion, removal lower layer sediment obtains upper liquid；By weight
Number meter, by 5~10 parts of microcrystalline cellulose powder, 40~50 parts of above-mentioned upper liquids, 10~15 parts of propylene glycol, 30~40 parts of ethylene glycol, 4~
5 parts of sodium carboxymethylcelluloses and 18~20 parts of sodium citrate mixing are placed in batch mixer, with the rotating speed of 400~500r/min, are added
Heat is warming up to 40~50 DEG C, and is passed through ammonia into batch mixer with the rate of 4~5L/min, until reaction solution pH is 8~9, stirs
30~50min of batch mixing is mixed, discharging bottling obtains the anti-sticking aircraft deicing anti-freeze fluid of low temperature.
Example 1
600g potatos are weighed, the 3h that is milled is put into stone mill, obtain potato residues, potato residues are put into plastic tub, to modeling
The sodium hydroxide solution that 1000mL water and 500mL mass fractions are 8% is added in feed basin to obtain after stirring 2h under the conditions of 90 DEG C
Potato slurries are placed in Centrifugal dispersion machine by potato slurries, 10min are centrifuged with the rotating speed of 4000r/min, in removal
Layer clear liquid obtains lower layer's filter residue；Above-mentioned filter residue is placed in beaker, after filter residue 3 times is washed with deionized, then into beaker plus
Entering the sodium chlorite solution that 200mL mass fractions are 20g/mL, the glacial acetic acid solution for being 90% with mass fraction adjusts pH to 4.8,
70 DEG C is heated to beaker, after isothermal holding 2h, delignification's fiber is obtained, is with mass fraction by delignification's fiber
10% hydrochloric acid is that 1 ︰ 2 is mixed in mass ratio, is heated to 95 DEG C, after heat preservation and dryness handles 2h, obtains microcrystalline cellulose powder；It will
The activated carbon of 40 mesh of granularity is mixed to get activated carbon mixed liquor for 1: 4 in mass ratio with water, then is added into activated carbon mixed liquor
The salpeter solution that mass fraction is 60%, salpeter solution addition are the 3% of activated carbon mixed liquor weight, are heated to 100 DEG C,
Boiling 4h stops heating, is naturally cooling to 70 DEG C, stops stirring, continues to obtain modified activated carbon mixed liquor after being cooled to room temperature；
Above-mentioned modified activated carbon mixed liquor is put into centrifugal separator, starts seperator, deionized water is added into centrifugal separator,
The activated carbon isolated is rinsed after μ s/cm, to stop that deionized water is added to conductivity≤45 of discharge cleaning solution, continue to detach
0.5h must wash the activated carbon of charcoal processing；It counts in parts by weight, the gluconic acid mother liquid of sodium and 70 for being 20% by 40 parts of mass fractions
Part chlor-alkali industrial waste water, 20 parts of quick limes, 50 parts of activated carbons mixing for washing charcoal processing are placed in reaction kettle, are heated to 40
DEG C, suspension is obtained, suspension is placed in the rotating speed in supercentrifuge with 3000r/min, Centrifugal dispersion 15min, under removal
Layer sediment, obtains upper liquid；Count in parts by weight, by 5 parts of microcrystalline cellulose powder, 40 parts of above-mentioned upper liquids, 10 parts of propylene glycol, 30 parts
Ethylene glycol, 4 parts of sodium carboxymethylcelluloses and 18 parts of sodium citrate mixing are placed in batch mixer, with the rotating speed of 400r/min, heating
40 DEG C are warming up to, and ammonia is passed through with the rate of 4L/min into batch mixer, until reaction solution pH is 8, stir mixing 30min,
Discharging bottling, obtains the anti-sticking aircraft deicing anti-freeze fluid of low temperature.
Example 2
650g potatos are weighed, the 3.5h that is milled is put into stone mill, obtain potato residues, potato residues are put into plastic tub, to
The sodium hydroxide solution that 1100mL water and 600mL mass fractions are 8% is added in plastic tub, after stirring 2.5h under the conditions of 95 DEG C,
Potato slurries are obtained, potato slurries are placed in Centrifugal dispersion machine, 13min is centrifuged with the rotating speed of 4500r/min, is gone
Except supernatant liquor obtains lower layer's filter residue；Above-mentioned filter residue is placed in beaker, after filter residue 4 times is washed with deionized, then to beaker
It is middle be added 250mL mass fractions be 24g/mL sodium chlorite solution, with mass fraction be 90% glacial acetic acid solution adjust pH to
5.0,75 DEG C is heated to beaker, after isothermal holding 2.5h, delignification's fiber is obtained, by delignification's fiber and quality
The hydrochloric acid that score is 10% is 1 ︰ 2 mixing in mass ratio, is heated to 100 DEG C, after heat preservation and dryness handles 2.5h, obtains crystallite
Fiber powder；The activated carbon of 50 mesh of granularity and water are mixed to get activated carbon mixed liquor for 1: 4 in mass ratio, then mixed to activated carbon
The salpeter solution that mass fraction is 65% is added in liquid, salpeter solution addition is the 4% of activated carbon mixed liquor weight, heat temperature raising
To 105 DEG C, boiling 4.5h, stop heating, be naturally cooling to 75 DEG C, stop stirring, continues to obtain modified work after being cooled to room temperature
Property charcoal mixed liquor；Above-mentioned modified activated carbon mixed liquor is put into centrifugal separator, seperator is started, is added into centrifugal separator
Enter deionized water, rinses the activated carbon isolated and after μ s/cm, stop that deionization is added to conductivity≤45 of discharge cleaning solution
Water continues to detach 0.7h, must wash the activated carbon of charcoal processing；It counts in parts by weight, the gluconic acid for being 20% by 45 parts of mass fractions
Mother liquid of sodium and 75 parts of chlor-alkali industrial waste waters, 25 parts of quick limes, 55 parts of activated carbon mixing for washing charcoal processing are placed in reaction kettle, are heated
45 DEG C are warming up to, suspension is obtained, suspension is placed in the rotating speed in supercentrifuge with 3500r/min, Centrifugal dispersion
17min, removal lower layer sediment, obtains upper liquid；It counts in parts by weight, by 7 parts of microcrystalline cellulose powder, 45 parts of above-mentioned upper liquids, 13
Part propylene glycol, 35 parts of ethylene glycol, 4 parts of sodium carboxymethylcelluloses and 19 parts of sodium citrates mixing are placed in batch mixer, with 450r/
The rotating speed of min is heated to 45 DEG C, and is passed through ammonia into batch mixer with the rate of 4.5L/min, until reaction solution pH is
8.5, stir mixing 40min, discharging bottling, obtain the anti-sticking aircraft deicing anti-freeze fluid of low temperature.
Example 3
700g potatos are weighed, the 4h that is milled is put into stone mill, obtain potato residues, potato residues are put into plastic tub, to modeling
The sodium hydroxide solution that 1200mL water and 700mL mass fractions are 8% is added in feed basin to obtain after stirring 3h under the conditions of 100 DEG C
To potato slurries, potato slurries are placed in Centrifugal dispersion machine, 15min, removal are centrifuged with the rotating speed of 5000r/min
Supernatant liquor obtains lower layer's filter residue；Above-mentioned filter residue is placed in beaker, after filter residue 5 times is washed with deionized, then into beaker
Be added 300mL mass fractions be 25g/mL sodium chlorite solution, with mass fraction be 90% glacial acetic acid solution adjust pH to
5.2,80 DEG C is heated to beaker, after isothermal holding 3h, obtains delignification's fiber, by delignification's fiber and quality point
Number is 1 ︰ 2 mixing in mass ratio for 10% hydrochloric acid, is heated to 105 DEG C, after heat preservation and dryness handles 3h, obtains microcrystalline cellulose
Powder；The activated carbon of 60 mesh of granularity and water are mixed to get activated carbon mixed liquor for 1: 4 in mass ratio, then into activated carbon mixed liquor
The salpeter solution that mass fraction is 70% is added, salpeter solution addition is the 5% of activated carbon mixed liquor weight, is heated to
110 DEG C, boiling 5h, stop heating, be naturally cooling to 80 DEG C, stops stirring, continue to obtain modified activated carbon after being cooled to room temperature
Mixed liquor；Above-mentioned modified activated carbon mixed liquor is put into centrifugal separator, starts seperator, is added and goes into centrifugal separator
Ionized water rinses the activated carbon isolated and after μ s/cm, stops that deionized water is added to conductivity≤45 of discharge cleaning solution, after
Continuous separation 1.0h, must wash the activated carbon of charcoal processing；It counts in parts by weight, the sodium gluconate for being 20% by 50 parts of mass fractions is female
Liquid and 80 parts of chlor-alkali industrial waste waters, 30 parts of quick limes, 60 parts of activated carbon mixing for washing charcoal processing are placed in reaction kettle, heat temperature raising
To 50 DEG C, suspension is obtained, suspension is placed in the rotating speed in supercentrifuge with 4000r/min, Centrifugal dispersion 18min is gone
Except lower layer's sediment, upper liquid is obtained；Count in parts by weight, by 10 parts of microcrystalline cellulose powder, 50 parts of above-mentioned upper liquids, 15 parts the third two
Alcohol, 40 parts of ethylene glycol, 5 parts of sodium carboxymethylcelluloses and 20 parts of sodium citrate mixing are placed in batch mixer, with turning for 500r/min
Speed is heated to 50 DEG C, and is passed through ammonia into batch mixer with the rate of 5L/min, until reaction solution pH is 9, stir mixing
50min, discharging bottling, obtains the anti-sticking aircraft deicing anti-freeze fluid of low temperature.
Comparative example
As a comparison case with the aircraft deicing anti-freeze fluid of Chengdu company production
Aircraft deicing anti-freeze fluid in the anti-sticking aircraft deicing anti-freeze fluid of low temperature produced by the present invention and comparative example is detected, is examined
The results are shown in Table 1 for survey：
Reference standard SAEAMS1424《SAEI type aircraft deicing anti-freeze fluids》It is detected.
Corrosivity is tested
The carbon steel metal piece for taking 5 phase homogenous quantities after impregnating 5min with 5% sulfuric acid solution, is washed, the punching of alcohol rinse, acetone
It washes, nitrogen blowing is dried, and is finally put into spare in drying box.400ml deionized waters are first added into the beaker of 4 1000mL
Afterwards, then into four beakers embodiment 1, embodiment 2, embodiment 3 and each 100mL of comparative example ice-removing and ice-preventing liquid are separately added into.It will
Anticipate, the suspension of load weighted carbon steel coupon is immersed in etchant solution 16 hours, expose 8 hours in an atmosphere, be repeated 7
It is secondary, totally 7 days.After experiment, sample is dipped in rust removing solution and is eliminated to rust, rinsed with a large amount of tap water after taking-up, then spend
Ionized water rinses, and filter paper is dried, acetone oil removing, uses assay balance correct amount after natural drying, corrosion rate is measured, with these
Based on corrosion rate, corrosion inhibition rate is calculated.
1 performance measurement result of table
From the data in table 1, it can be seen that the anti-sticking aircraft deicing anti-freeze fluid of low temperature produced by the present invention, has good deicing, anti-icing effect,
And corrosivity is small, hence it is evident that is better than comparative example product.Therefore, there is wide prospect of the application.
Claims (7)
1. a kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature, it is characterised in that specifically preparation process is：
（1）600~700g potatos are weighed, is put into stone mill and is milled, obtain potato residues, potato residues are put into plastic tub
In, 1000~1200mL water and 500~700mL sodium hydroxide solutions are added into plastic tub, stirs to get potato slurries, it will
Potato slurries are placed in Centrifugal dispersion machine, are centrifuged, and removal supernatant liquor obtains lower layer's filter residue；
（2）Above-mentioned filter residue is placed in beaker, after filter residue 3~5 times is washed with deionized, then it is added into beaker 200~
300mL sodium chlorite solutions adjust pH with glacial acetic acid solution, to beaker heat temperature raising, after isothermal holding, obtain delignification's fibre
Dimension, by delignification's fiber and mixed in hydrochloric acid, heat temperature raising, heat preservation and dryness processing obtains microcrystalline cellulose powder；
（3）Activated carbon and water are mixed to get activated carbon mixed liquor, then salpeter solution is added into activated carbon mixed liquor, heating rises
Temperature, boiling stop heating, and Temperature fall stops stirring, continues to obtain modified activated carbon mixed liquor after being cooled to room temperature；
（4）Above-mentioned modified activated carbon mixed liquor is put into centrifugal separator, starts seperator, is added and goes into centrifugal separator
Ionized water after rinsing the activated carbon isolated, stops that deionized water is added, continues to detach, must wash the activated carbon of charcoal processing；
（5）It counts in parts by weight, by 40~50 parts of gluconic acid mother liquid of sodium and 70~80 parts of chlor-alkali industrial waste waters, 20~30 parts of lifes
Lime, 50~60 parts of activated carbon mixing for washing charcoal processing are placed in reaction kettle, and heat temperature raising obtains suspension, and suspension is placed in
Centrifugal dispersion in supercentrifuge, removal lower layer sediment, obtains upper liquid；
（6）It counts in parts by weight, by 5~10 parts of microcrystalline cellulose powder, 40~50 parts of above-mentioned upper liquids, 10~15 parts of propylene glycol, 30
~40 parts of ethylene glycol, 4~5 parts of sodium carboxymethylcelluloses and 18~20 parts of sodium citrate mixing are placed in batch mixer, heat temperature raising,
And ammonia is passed through into batch mixer, stir mixing, discharging bottling obtains the anti-sticking aircraft deicing anti-freeze fluid of low temperature.
2. a kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature according to claim 1, it is characterised in that：Step
（1）Time that is milled in the stone mill is 3~4h, and sodium hydroxide solution mass fraction is 8%, and temperature is 90~100 when stirring
DEG C, Centrifugal dispersion machine rotating speed is 4000~5000r/min, and the centrifugation time is 10~15min.
3. a kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature according to claim 1, it is characterised in that：Step
（2）The mass fraction of the sodium chlorite solution is 20~25g/mL, and the mass fraction of glacial acetic acid solution is 90%, glacial acetic acid
It is 4.8~5.2 that solution, which adjusts solution system pH in beaker, is 70~80 DEG C to temperature after beaker heat temperature raising, when isothermal holding
Between be 2~3h, the mass fraction of hydrochloric acid is 10%, and the mass ratio of delignification's fiber and mixed in hydrochloric acid is 1 ︰ 2, after heat temperature raising
Temperature is 95~105 DEG C, and heat preservation and dryness processing time is 2~3h.
4. a kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature according to claim 1, it is characterised in that：Step
（3）The granularity of activated carbon is 40~60 mesh, activated carbon and water mixing quality than 1: 4, salpeter solution mass fraction for 60~
70%, salpeter solution addition is the 3~5% of activated carbon mixed liquor weight, and temperature is 100~110 DEG C after heat temperature raising, when boiling
Between be 4~5h, stop heating after with tap water cooling be 70~80 DEG C.
5. a kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature according to claim 1, it is characterised in that：Step
（4）Conductivity≤45 μ s/cm of cleaning solution are discharged when the activated carbon that the flushing is isolated, continue disengaging time be 0.5~
1.0h。
6. a kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature according to claim 1, it is characterised in that：Step
（5）Described is 40~50 DEG C to temperature after reaction kettle heat temperature raising, and supercentrifuge rotating speed is 3000~4000r/min, from
Heart jitter time is 15~18min.
7. a kind of preparation method of the anti-sticking aircraft deicing anti-freeze fluid of low temperature according to claim 1, it is characterised in that：Step
（6）The batch mixing rotating speed is 400~500r/min, and temperature is 40~50 DEG C after heat temperature raising, and ammonia is passed through into batch mixer
Rate is 4~5L/min, and logical ammonia continues to reaction solution pH to be 8~9, and the stir mixing time is 30~50min.
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| CN109897536A (en) * | 2019-02-20 | 2019-06-18 | 李康鹏 | A kind of preparation method of anti-icing paint |
| CN110357986A (en) * | 2019-06-21 | 2019-10-22 | 杨晓军 | A kind of preparation method of low fat pectin |
| CN116218485A (en) * | 2023-03-09 | 2023-06-06 | 山东莱克科技有限公司 | High-performance automobile antifreeze fluid and preparation method thereof |
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