CN104694082A - Deicing snow-melting agent - Google Patents
Deicing snow-melting agent Download PDFInfo
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- CN104694082A CN104694082A CN201310637649.XA CN201310637649A CN104694082A CN 104694082 A CN104694082 A CN 104694082A CN 201310637649 A CN201310637649 A CN 201310637649A CN 104694082 A CN104694082 A CN 104694082A
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Abstract
The invention discloses a deicing snow-melting agent. A formate is taken as a main ingredient of the deicing snow-melting agent; the deicing snow-melting agent also contains a plurality of additives such as metasilicate, sodium carbonate, organic phosphate containing phosphoryl groups, and cadmium plated metal sheet corrosion inhibitor. The deicing snow-melting agent possesses excellent ice removing capacity, ice preventing capacity, and snow melting capacity; corrosion is less; corrosion on carbon steel metal and concrete is less; and corrosion on aluminium and magnesium alloy, and cadmium plated metal materials used on airplanes is extremely less; biodegradation of the deicing snow-melting agent can be realized easily; oxygen consumption in degradation is less; environmental protection performance is excellent; and the deicing snow-melting agent is capable of removing ice rapidly with high efficiency.
Description
Technical field
The present invention relates to a kind of agent except ice and snow melting agent, being specifically related to a kind of is that the ecology of main component is except ice and snow melting agent with formate.
Background technology
Existing villaumite deicing agent is due to Cl
-the corrodibility of ion, often with the addition of rust inhibitor (resist), although relax to some extent metal and pavement construction material corrodibility, corrodibility is still very outstanding, and Cl
-ion pair soil, vegetation have an impact, harm plant-growth.Although the biological deicing agent costs such as food crop, papermaking wastewater, wine by product, lipolysaccharide product are low, non-environmental-pollution, deicing effect is general.Urea deicing agent is decomposed into ammonia, and nitrocalcite magnesium salts deicing agent, containing nitrate radical, makes body eutrophication.The alcohols such as ethylene glycol, glycerol deicing agent enters a large amount of oxygen of water body decomposition and consumption, and chemical oxygen demand exceeds standard.
Formate is that a kind of novel organic salt is except ice and snow melting agent, its ice-melt speed is fast, ability is strong, use rear easy degraded, biochemical oxygen demand is low, little to environmental influence, is that a kind of eco-friendly type is except ice and snow melting agent, but formate to metal particularly light metal have certain corrodibility, suitable corrosion inhibitor must be added and eliminated.
According to SAE AMS1431C " US Airways material technology specification---airstrips, slideway deicing/anti-icing solidification is containing thing " (Compound, Solid Runway and Taxiway Deicing/Anti-Icing) requirement, airport deicing agent is tested according to " American Society Testing and Materials " (ASTM) " test method that ASTMF1111-88 aircraft maintenance chemical corrodes low hydrogen embrittlement cadmium plated steel plate " cadmium material corrosion, this standard is the method standard about low crisp cadmium corrosion test, under being defined in the temperature of 35 ± 1 DEG C, cadmium plating test specimen is immersed face, road deicing agent and is made into 24h in the solution of 15%, the average quality loss of calculation testing piece 24h after off-test, and observe test specimen outward appearance and whether have variable color, the corrosion phenomenons such as spot.
According to pertinent data introduction, test according to the method for ASTM F1111, also do not meet face, the road deicing agent of this test request, face, general road deicing agent is all than being easier to by this test.But in actual use, part but result in the corrosion of the cadmium plating such as undercarriage, web member component at face, the road deicing agent that western countries use.Trace it to its cause, still main because the test method that ASTM F1111 specifies has some limitations, its test period is 24h, can not reflect the airplane component truth in use that may be corroded.Such as, the cadmium plating component on aircraft can contact face deicing agent when ground, and can be dried completely in aircraft flight, and this phenomenon repeatedly occurs, and causes the periodicity of cadmium plating component to corrode.
In June, 2012, the U.S. " Society of automotive engineers " (SAE) be version cloth AMS1431D standard (replacing AMS1431C standard) again, new test is added to cadmium material corrosion, namely test according to " SAE AIR6130 cadmium plate cycle corrosion test " this standard, to be defined in temperature be 32 ± 3 DEG C and humidity is 30 ± 5% fixed temperature and humidity conditions, solid deicers is made into the test fluid of 15% concentration, again cadmium plating tinsel is placed in test fluid and soaks, take out air-dry, cleaning, weigh, this process uninterruptedly repeats 14 days continuously, the quality change of last cadmium plating test specimen should more than 0.3mg/cm
2." test method that ASTM F1111-88 aircraft maintenance chemical corrodes low hydrogen embrittlement cadmium plated steel plate " that " the SAE AIR6130 cadmium plate cycle corrosion test " of AMS1431D standard regulation specifies than AMS1431C standard is more strict.
Patent of the present invention proposes a kind of new combination formula, through repeatedly practising inspection and test, have passed the test of " the SAEAIR6130 cadmium plate cycle corrosion test " for cadmium material corrosion specified in every test of AMS1431D, particularly AMS1431D standard.
The present invention meets all technical specificationss of AMS1431D standard.
Summary of the invention
The object of the present invention is to provide a kind of deicing, anti-icing, snow melting ability strong, corrodibility is little, and the novel ecological be easily biodegradable is except ice and snow melting agent.
Technical scheme of the present invention is:
A kind of except ice and snow melting agent, it is characterized in that the weight percent of each component is:
Described formate be selected from sodium formiate, potassium formiate one or both;
Described metasilicate be selected from Starso, potassium metasilicate one or both;
The described organophosphate containing phosphoryl group is hydroxy ethylidene-diphosphate disodium (HEDPNa
2), 2-phosphoric acid butane-1,2,4-tricarboxylic acid four sodium (PBTCANa
4), a-hydroxyl fosfonet sodium (HPAANa) one or more;
The protection against corrosion of described cadmium plating metal sheet helps thing to be two or more in phosphoric acid salt, molybdate, Sodium Benzoate, phytic acid, polyphosphoric acid salt, thiocarbamide;
Described phosphoric acid salt be sodium phosphate, potassiumphosphate, SODIUM PHOSPHATE, MONOBASIC, potassium primary phosphate any one;
Described polyphosphoric acid salt is sodium polyphosphate/potassium, is preferably tripoly phosphate sodium STPP/potassium;
The described production method except ice and snow melting agent, is characterized in that comprising the steps:
By described formate, metasilicate, sodium carbonate, be mixed in proportion containing the organophosphate of phosphoryl group and cadmium plating metal sheet anti-corrosive aids etc., pulverize, stir after, be squeezed into the particle of 2-6mm, dry, to obtain final product.
Beneficial effect of the present invention has:
(1) of the present invention except ice and snow melting agent deicing, anti-icing, snow melting ability is strong;
(2) patent of the present invention is by various additive compound synergy, not only minimum to the corrodibility of the Al alloys andMg alloys material that aircraft uses, product meets USS AMS1431D aeronautical material environmental requirement all technical, and the erosion resistance further increased cadmium material, alleviate the corrosion to the cadmium plating alloy material used a large amount of on aircraft, reach " the SAE AIR6130 cadmium plate cycle corrosion test " test request specified in U.S. AMS1431D standard;
(3) to be of the present inventionly easily biodegradable except ice and snow melting agent, biochemical and chemical oxygen demand is low, good environmental protection during degraded;
It is (4) of the present invention that except ice and snow melting agent, dissolution rate is fast at low temperatures, solubleness is large, should be strong except ice and snow melting agent solid particulate water-absorbent, the moisture content that can absorb rapidly at low temperatures in ambient air forms salt solution, first infiltrates earth's surface, and then diffusion is come, destroy ice and snow and freeze the sticking power between ground, reach the object of fast melt ice and snow, working efficiency is high, is a kind of efficient fast except ice and snow melting agent.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiment.But these embodiments should be interpreted as the limitation to scope.
Table 1 lists six kinds of embodiment components (wherein said data refer to the weight percent of each component in Snow Agent):
Table 1 embodiment 1 ~ 6 is except ice and snow melting agent component composition
| Component forms | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Sodium formiate | 97.17 | 98.17 | 98.80 | 98.60 | 97.50 | 98.25 |
| Sodium carbonate | 0.5 | 0.2 | 0.2 | 0.5 | 0.3 | 0.3 |
| Starso | 1.50 | 1.08 | 0.35 | 0.25 | 1.3 | 0.30 |
| HEDPNa 2 | 0.05 | 0.25 | 0.05 | 0.20 | 0.35 | 0.45 |
| Sodium orthomolybdate | 0.35 | 0 | 0.40 | 0.25 | 0.35 | 0.55 |
| Tripoly phosphate sodium STPP | 0.21 | 0.10 | 0.20 | 0.02 | 0 | 0 |
| Thiocarbamide | 0.22 | 0.18 | 0 | 0.10 | 0.05 | 0 |
| Potassium primary phosphate | 0 | 0.02 | 0 | 0.08 | 0.15 | 0.15 |
Embodiment 1 ~ 6 except the production method of ice and snow melting agent is: after getting each component by weight percentage, mix, pulverize, stirring, be squeezed into the particle of 2-6mm, dry, to obtain final product.
Test example one
The test of full immersed type corrosion test is carried out to embodiment 1 ~ 6
1. according to ASTM F483 standard in " US Airways material technology specification---about airstrips, slideway deicing/anti-icing solidification containing thing " (AMS1431D Compound, Solid Runway and TaxiwayDeicing/Anti-Icing) examination criteria, the test of full immersed type corrosion test is carried out to embodiment 1 ~ 6.
2. ASTM F483 standard test step is, getting the tinsel being of a size of 50.8 × 25.4 × 1.6mm is placed in the test solution of the normality (15%) that deicing agent is made into, under a normal atmosphere and under 38 ± 3 DEG C of constant temperatures, soak 24 hours, changes in weight and outward appearance corrosive chameleon situation before and after record tinsel soaks, test result unit is mg/cm
224 hours.
3. test result is as shown in table 2 below:
Table 2 full immersed type corrosion test test result
As can be seen from the above table, by testing the erosion test of the light metal materials such as the aluminium that aircraft uses, magnesium, the ice and snow melting agent that removes of the present invention reaches U.S. AMS1431D complete submergence corrosion test testing standard completely.
Test example two
According to U.S. AIR6130 standard, the test of cadmium plate cycle corrosion test is carried out to embodiment 1 ~ 6
1. cadmium plating testing plate prepares:
A, base material: 4130 steel alloys
B, specification: 25.40mm x50.80mm x1.02mm
C, 4130 steel alloy surface treatments: cadmium plating, perform AMS-QQ-P-416 standard, type selecting I, I class, thickness of coating 0.0127 ~ 0.0203mm, coating is maximum is no more than 0.203mm
D, preparation banister brush (paintbrush type, wide 3.8cm, long 3.8cm, synthesis mane)
E, preparation test fluid: for AMS1431 runway deicing solid chemical compound sample, test according to dissolved dilution mode, according to ASTM D1193 standard, be diluted to the solution of 15% weight concentration with the water of model IV specification
2. the simulated environment of the exposed corrosion test of test panel prepares:
Pre-set constant temperature humidity cabinet temperature 32 ± 3 DEG C and humidity 30 ± 5%.Plastic tape is fastened or other inert material hanger is used for hanging testing plate, complete exposed corrosion test under carrying out simulated environment at thermostatic chamber.Hanger inert material is made, and does not react with sample, can be plastics, plate and mould the materials such as metal, monofilament, stainless steel.
3. test procedure:
A, test record test fluid pH value, be accurate to a decimal, such as, and PH=7.3.
B, with acetone cleaning cadmium plating test panel, the cleaning piece wiping of soaking with acetone, does not allow acetone evaporated, wipes unnecessary acetone with the cleaning piece of drying, allows test panel in moisture eliminator dry 10 minutes, accelerates dry with loft drier.Attention: do not catch tactile clean testing plate, with antimagnetic type tweezer, clean gloves or other equivalent tool.
C, weigh and record testing plate initial weight.Record test whole process all wt, is accurate to 0.0001g.Testing plate is placed in moisture eliminator, and test fluid was placed on constant temperature humidity cabinet to the 3rd day.
D, from the 3rd day, in the test fluid of placing in constant temperature humidity cabinet, testing plate is hung immersion 24 ± 1 hours (the 3rd day), take out testing plate and hang 22.5 ± 0.5 hours (the 4th day) in constant temperature humidity cabinet hollow.Take out testing plate, with deionized water rinsing, hairbrush gently brush, acetone soaks, dry, weigh, hang 22.5 ± 0.5 hours (the 5th day) in constant temperature humidity cabinet hollow.Testing plate soaks 90 ± 5 minutes in test fluid, takes out and hangs 22.5 ± 0.5 hours (the 6th day) in constant temperature humidity cabinet hollow.Take out testing plate, with deionized water rinsing, hairbrush gently brush, acetone soaks, dry, weigh, put into test fluid successive soaking 3 days (7th ~ 9 days).Take out testing plate, with deionized water rinsing, hairbrush gently brush, acetone soaks, dry, weigh, testing plate is placed in test fluid soaks 90 ± 5 minutes, takes out and hangs 22.5 ± 0.5 hours (the 10th day) in constant temperature humidity cabinet hollow.Taking-up testing plate is placed in test fluid soaks 90 ± 5 minutes, takes out and hangs 22.5 ± 0.5 hours (the 11st day) in constant temperature humidity cabinet hollow.Take out testing plate, with deionized water rinsing, hairbrush gently brush, acetone soaks, dry, weigh, testing plate is placed in test fluid soaks 90 ± 5 minutes, takes out and hangs 22.5 ± 0.5 hours (the 12nd day) in constant temperature humidity cabinet hollow.Taking-up testing plate is placed in test fluid soaks 90 ± 5 minutes, takes out and hangs 22.5 ± 0.5 hours (the 13rd day) in constant temperature humidity cabinet hollow.Take out testing plate, with deionized water rinsing, hairbrush gently brush, acetone soaks, dry, weigh (the 14th day).
The weight of testing plate of at every turn weighing makes a record.
4. through continuous 14 days immersion ~ air-dry continuous repetitive processes, test result is as shown in table 3 below:
Table 3 carries out cadmium plate cycle corrosion test result according to U.S. AIR6130 standard
As can be seen from the above table, remove ice and snow melting agent according to " the SAE AIR6130 cadmium plate cycle corrosion test " of AMS1431D standard regulation to the present invention and carry out the test of cadmium material corrosion test, test piece is weight in average change (mg/cm after continuous 14 days immersion ~ air drying process
2) value is all lower than 0.3mg/cm
2desired value, meets AMS1431D standard-required.
Above-described embodiment and test list 6 kinds of components except ice and snow melting agent and weight percent thereof, for further illustrating the present invention, also provide following three specific embodiments:
Embodiment 7
A kind of except ice and snow melting agent, the weight percent of each component is:
Production method is: after getting each component by weight percentage, pulverize, mix, stirring, be squeezed into the particle of 2-6mm, dries, to obtain final product.
Embodiment 8
A kind of except ice and snow melting agent, the weight percent of each component is:
Production method is identical with embodiment 7.
Embodiment 9
A kind of except ice and snow melting agent, the weight percent of each component is:
Production method is identical with embodiment 7.
Certainly, the present invention can also have other numerous embodiments, as replaced by other formate of sodium formiate, such as, replace with potassium formiate, or part potassium formiate replaces; Containing phosphoryl group [-PO (OH)
2] organophosphate be also not limited to hydroxy ethylidene-diphosphate disodium (HEDPNa
2), 2-phosphoric acid butane-1,2,4-tricarboxylic acid four sodium (PBTCANa
4), the one of a-hydroxyl fosfonet sodium (HPAANa), can also be the combination of two or three.As long as the weight percent of each component is in limits of the present invention, all can realize object of the present invention, repeat no more in this specification sheets of specific embodiment.
The present invention is except the usage quantity of ice and snow melting agent is with reference to following table 4:
Table 4 is except the reference of ice and snow melting agent usage quantity
| Free air temperature DEG C | Prevention consumption (g/m 2) | Deicing consumption (g/m 2) |
| 0～-7℃ | 35 | 60 |
| -8～-12℃ | 55 | 90 |
| -13～-18℃ | 85 | 130 |
Airport runways and motorway should be mainly used in except ice and snow melting agent, remove and pre-frost prevention, the gathering of ice or snow, also can be used on street, highway, cycle track, walkway, bridge, garden, parking lot, playground and other traffic zone.
Claims (2)
1., except an ice and snow melting agent, it is characterized in that the weight percent of each component is:
Described formate be selected from sodium formiate, potassium formiate one or both;
Described metasilicate be selected from Starso, potassium metasilicate one or both;
The described organophosphate containing phosphoryl group be hydroxy ethylidene-diphosphate disodium, 2-phosphoric acid butane-1,2,4-tricarboxylic acid four sodium, a-hydroxyl fosfonet sodium one or more;
Described cadmium plating metal sheet anti-corrosive aids is two or more in phosphoric acid salt, Sodium Benzoate, phytic acid, molybdate, polyphosphoric acid salt, thiocarbamide;
Described phosphoric acid salt be sodium phosphate, potassiumphosphate, SODIUM PHOSPHATE, MONOBASIC, potassium primary phosphate any one;
Described polyphosphoric acid salt is sodium polyphosphate/potassium, is preferably tripoly phosphate sodium STPP/potassium.
2. a kind of production method except ice and snow melting agent according to claim 1; after it is characterized in that comprising the steps: described formate, metasilicate, sodium carbonate, be mixed in proportion containing the organophosphate, cadmium plating metal sheet anti-corrosive aids etc. of phosphoryl group, pulverize, stirring; be squeezed into the particle of 2-6mm; dry, to obtain final product.
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| CN201310637649.XA CN104694082A (en) | 2013-12-04 | 2013-12-04 | Deicing snow-melting agent |
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| CN201310637649.XA CN104694082A (en) | 2013-12-04 | 2013-12-04 | Deicing snow-melting agent |
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Cited By (3)
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| CN106350010A (en) * | 2016-08-19 | 2017-01-25 | 成都民航六维航化有限责任公司 | Environment-friendly airfield pavement deicing agent and preparation method thereof |
| CN106367027A (en) * | 2016-08-30 | 2017-02-01 | 周琼 | Efficient environment-friendly snow-melting agent |
| CN108795384A (en) * | 2017-04-27 | 2018-11-13 | 金宝特兴（北京）科技开发有限公司 | Salt-dust-free low-chlorine environment-friendly snow melting agent and preparation method thereof |
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