CN102851002A - Anti-corrosion antifreeze liquid for aluminium - Google Patents
Anti-corrosion antifreeze liquid for aluminium Download PDFInfo
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- CN102851002A CN102851002A CN2012103762883A CN201210376288A CN102851002A CN 102851002 A CN102851002 A CN 102851002A CN 2012103762883 A CN2012103762883 A CN 2012103762883A CN 201210376288 A CN201210376288 A CN 201210376288A CN 102851002 A CN102851002 A CN 102851002A
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- 238000005260 corrosion Methods 0.000 title claims abstract description 54
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 26
- 239000004411 aluminium Substances 0.000 title claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 230000002528 anti-freeze Effects 0.000 title abstract description 8
- 239000007788 liquid Substances 0.000 title abstract 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 54
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 51
- -1 rare-earth salt Chemical class 0.000 claims abstract description 21
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000012964 benzotriazole Substances 0.000 claims abstract description 20
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 claims abstract description 20
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims abstract description 20
- 229920000053 polysorbate 80 Polymers 0.000 claims abstract description 20
- 229940068968 polysorbate 80 Drugs 0.000 claims abstract description 20
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 20
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 34
- JKYKXTRKURYNGW-UHFFFAOYSA-N 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C(O)=C(O)C(S(O)(=O)=O)=C2 JKYKXTRKURYNGW-UHFFFAOYSA-N 0.000 claims description 18
- 241000282326 Felis catus Species 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims 1
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 23
- 230000007797 corrosion Effects 0.000 abstract description 19
- 230000005764 inhibitory process Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 3
- RGCKGOZRHPZPFP-UHFFFAOYSA-N alizarin Chemical compound C1=CC=C2C(=O)C3=C(O)C(O)=CC=C3C(=O)C2=C1 RGCKGOZRHPZPFP-UHFFFAOYSA-N 0.000 abstract 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 11
- 239000008399 tap water Substances 0.000 description 9
- 235000020679 tap water Nutrition 0.000 description 9
- 238000012360 testing method Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JVVRJMXHNUAPHW-UHFFFAOYSA-N 1h-pyrazol-5-amine Chemical group NC=1C=CNN=1 JVVRJMXHNUAPHW-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses anti-corrosion antifreeze liquid for aluminium, which consists of benzotriazole, polysorbate 80, rare-earth salt, a cationic surfactant, alizarin red, propylene glycol and glycerol, wherein the concentration of the benzotriazole is 0.1 to 1.4g/L; the concentration of the polysorbate 80 is 1 to 2ml/L; the concentration of the rare-earth salt is 0.01 to 0.1g/L; the concentration of the cationic surfactant is 0.05 to 0.3g/L; the concentration of the alizarin red is 0.001 to 0.008g/L; the concentration of the propylene glycol is 150 to 500ml/L; and the concentration of the glycerol is 100 to 450ml/L. The anti-corrosion antifreeze liquid has low viscosity and the heat exchange effect is improved; and meanwhile, by changing the proportion of components, different freezing point ranges are obtained to adapt to application in different places and reducing the cost. Moreover, corrosion inhibition efficiency of the anti-corrosion antifreeze liquid on aluminium alloy is over 91 percent, the anti-corrosion antifreeze liquid is environmental-friendly, does not require additional equipment, is convenient to use, has low investment and rapid response, and the original process flow is not damaged.
Description
Technical field
The invention belongs to corrosion and the guard technology field of metallic substance, refer more particularly to the anti-corrosion deicing fluid of a kind of aluminium.
Background technology
Deicing fluid is a kind of cooling fluid that contains special additive, has a winter antifreeze, summer the is anti-premium properties such as boil.In order to make solar water heater when temperature is too low, be unlikely to frost crack pipe, normally adopt binary cycle system, interchanger namely is set in solar water heating system, the hot side of heat collector and interchanger forms the first circulation, and use subzero deicing fluid to make heat-transfer working medium, thereby the system of realization is antifreeze.It is now domestic and international that what use more than 95% is the aq. type deicing fluid of ethylene glycol, ethylene glycol is antifreeze, boiling point is high, volatility is little, modest viscosity and along with temperature variation is little, Heat stability is good, but the meta-bolites of ethylene glycol has severe toxicity, big for environment pollution, the environmental protection of advocating with country does not conform to.In addition, because the pipeline in the solar energy circulating system is to be made by all kinds of metals, corrode in the material that long term operation causes for fear of deicing fluid so, prolong the work-ing life of water-heater, in deicing fluid, also should add inhibiter, reach the effect of anti-inhibition.
At present the development experience of inhibiter the protection of Novel light alloy material and many metal composite structures such as from traditional metal materials such as iron and steel, copper to aluminium, magnesium, also increasing about the research of these alloy material corrosion preventions.Aluminium has three classes with inhibiter: the adsorptivity inhibiter, mainly by the chemisorption of physical adsorption and covalent linkage, form firmly adsorption film at molecular surface, and medium and metal are kept apart, thereby suppress corrosion of metal; Diffustivity inhibiter, inhibitor molecular act on the full surface of metal, are that the resistance in the local microbattery increases, and corrosion current reduces, and Corrosion of Al is suppressed; The table and the change type inhibiter carries out chemical reaction with metal, reactant is covered on the metallic surface.
Domesticly start late in the research aspect the corrosion of aluminium alloy protection, be at first from inorganics, such as molybdate, tungstate etc. have certain corrosion mitigating effect, nowadays developed into organic inhibitor, aluminium is being pursued efficiently simultaneously with the research of inhibiter, gradually to nontoxic, green, environmental protection, economic future development, there is the traditional chromium hydrochlorate of pollution to become the trend of corrosive protection of aluminium alloy field development and utilize rare-earth salts to substitute to environment, in addition that structure is composite with the different compounds that have in nature complementarity, realizing the synergistic slow corrosion effect, then is an important research direction of aluminium inhibiter.
Summary of the invention
The purpose of this invention is to provide and a kind ofly both can guarantee the solar energy system heat transfer effect, again aluminium alloy is had the anti-corrosion deicing fluid of the aluminium of good corrosion inhibition, with overcome the inhibiter poorly water-soluble, to the problem such as environment is unfriendly.
The invention provides the anti-corrosion deicing fluid of a kind of aluminium, it is characterized in that being formed by benzotriazole, Polysorbate 80, rare-earth salts, cats product, sodium alizarinsulfonate, interior glycol, glycerol, wherein benzotriazole concentration is the 0.1-1.4 grams per liter, Polysorbate 80 concentration be the 1-2 milliliter/liter, rare-earth salts concentration is the 0.01-0.1 grams per liter, cationic surfactant concentration be 0.05-0.3 grams per liter, sodium alizarinsulfonate concentration be 0.001-0.008 grams per liter, propylene glycol concentration be the 150-500 milliliter/liter, glycerol concentration be the 100-450 milliliter/liter.
Preferred technical scheme has: the anti-corrosion deicing fluid of a kind of aluminium, it is characterized in that being formed by benzotriazole, Polysorbate 80, rare-earth salts, cats product, sodium alizarinsulfonate, propylene glycol, glycerol, wherein benzotriazole concentration is 0.8 grams per liter, Polysorbate 80 concentration is 1.5 milliliters/liter, rare-earth salts concentration is 0.05 grams per liter, and cationic surfactant concentration is that 0.15 grams per liter, sodium alizarinsulfonate concentration are that 0.004 grams per liter, propylene glycol concentration are that 300 milliliters/liter, interior three determining alcohols are 300 milliliters/liter; Described rare-earth salts is cerous salt; Described cationic surfactant is aminopyrazole derivatives.
The anti-corrosion deicing fluid of a kind of aluminium, its preparation method is:
Step 1: benzotriazole, Polysorbate 80, rare upper salt, cats product, sodium alizarinsulfonate are dissolved in propylene glycol and the glycerol fully by ultrasonic vibration;
Step 2: add entry, until the benzotriazole concentration in the solution is the 0.1-1.4 grams per liter, Polysorbate 80 concentration be the 1-2 milliliter/liter, rare-earth salts concentration is the 0.01-0.1 grams per liter, cationic surfactant concentration be 0.05-0.3 grams per liter, sodium alizarinsulfonate concentration be 0.001-0.008 grams per liter, propylene glycol concentration be the 150-500 milliliter/liter, glycerol concentration be the 100-450 milliliter/liter;
Step 3: repeatedly stir.
Aluminium of the present invention forms precipitation membrane with the benzotriazole in the anti-corrosion preservative component by the aluminum ion interaction that generates in the reactive group on its molecule and the corrosion process or insoluble coordination compound film plays corrosion inhibition.Polysorbate 80 belongs to nonionic surface active agent, it contains polar group and non-polar group, adds in the corrosive medium when it, and polar group can adsorb in aluminum alloy surface, non-polar group is aligned in aluminum alloy surface, thereby stop that corrosive medium plays corrosion inhibition.Sodium alizarinsulfonate and cats product form stable associated complex and cover aluminum alloy surface, add simultaneously rare-earth salts, and act synergistically between these inhibiter, make the protective membrane of aluminum alloy surface complete, thereby suppress the corrosion of aluminium alloy.
Aluminium provided by the invention is little with anti-corrosion deicing fluid viscosity, has improved heat transfer effect; By changing component proportion, obtain different freezing point scopes simultaneously, be suitable for different areas and use and the reduction cost.And the inhibition efficiency of aluminium alloy all reached more than 91%, environmentally friendly, do not destroy original technical process, do not need optional equipment, easy to use, smail investments and quick rerurn.
Embodiment
The present invention will be further elaborated below by embodiment.
Embodiment 1
At first by ultrasonic vibration benzotriazole, Polysorbate 80, rare-earth salts, cats product, sodium alizarinsulfonate are dissolved in propylene glycol and the glycerol fully; Then add entry, until the benzotriazole concentration in the solution is 0.1 grams per liter, Polysorbate 80 concentration is 1 milliliter/liter, rare-earth salts concentration is 0.01 grams per liter, and cationic surfactant concentration is that 0.05 grams per liter, sodium alizarinsulfonate concentration are that 0.001 grams per liter, interior diol concentration are that 500 milliliters/liter, glycerol concentration are 100 milliliters/liter; Repeatedly stir at last, form the anti-corrosion deicing fluid of aluminium of the present invention.
Add and do not add above-mentioned aluminium with the tap water of anti-corrosion deicing fluid in all placing aluminium alloy test pieces, immersion for some time.In not adding the tap water of anti-corrosion deicing fluid, aluminum alloy surface has spot corrosion; And in the tap water that adds anti-corrosion deicing fluid, aluminum alloy surface is without obvious evidence of corrosion.And draw through repetition test, this anti-corrosion deicing fluid can reach 91% to the aluminium alloy inhibition efficiency.
Embodiment 2
At first by ultrasonic vibration benzotriazole, Polysorbate 80, rare-earth salts, cats product, sodium alizarinsulfonate are dissolved in propylene glycol and the glycerol fully; Then add entry, until the benzotriazole concentration in the solution is 1.4 grams per liters, Polysorbate 80 concentration is 2 milliliters/liter, rare-earth salts concentration is 0.1 grams per liter, and cationic surfactant concentration is that 0.3 grams per liter, sodium alizarinsulfonate concentration are that 0.008 grams per liter, propylene glycol concentration are that 150 milliliters/liter, glycerol concentration are 450 milliliters/liter; Repeatedly stir at last, form the anti-corrosion deicing fluid of aluminium of the present invention.
Add and do not add above-mentioned aluminium with the tap water of anti-corrosion deicing fluid in all placing aluminium alloy test pieces, immersion for some time.In not adding the tap water of anti-corrosion deicing fluid, aluminum alloy surface has spot corrosion; And in the tap water that adds anti-corrosion deicing fluid, aluminum alloy surface is bright and clean, without spot corrosion.And draw through repetition test, this anti-corrosion deicing fluid can reach 95% to the aluminium alloy inhibition efficiency.
Embodiment 3
At first by ultrasonic vibration benzotriazole, Polysorbate 80, rare-earth salts, cats product, sodium alizarinsulfonate are dissolved in propylene glycol and the glycerol fully; Then add entry, until the benzotriazole concentration in the solution is 0.8 grams per liter, Polysorbate 80 concentration is 1.5 milliliters/liter, rare upper salt concn is 0.05 grams per liter, and cationic surfactant concentration is that 0.15 grams per liter, sodium alizarinsulfonate concentration are that 0.004 grams per liter, propylene glycol concentration are that 300 milliliters/liter, glycerol concentration are 300 milliliters/liter; Repeatedly stir at last, form the anti-corrosion deicing fluid of aluminium of the present invention.
Add and do not add above-mentioned aluminium with the tap water of anti-corrosion deicing fluid in all placing aluminium alloy test pieces, immersion for some time.In not adding the tap water of anti-corrosion deicing fluid, aluminum alloy surface has spot corrosion; And in the tap water that adds anti-corrosion deicing fluid, aluminum alloy surface is bright and clean, without spot corrosion.And draw through repetition test, this anti-corrosion deicing fluid can reach 97% to the aluminium alloy inhibition efficiency.
Represent that with form the prescription of the anti-corrosion deicing fluid of the present invention and experimental result are as follows:
Anti-corrosion deicing fluid viscosity provided by the invention is little, has improved heat transfer effect; By changing component proportion, obtain different freezing point scopes simultaneously, be suitable for different areas and use and the reduction cost.And the inhibition efficiency of aluminium alloy all reached more than 91%, environmentally friendly, do not destroy original technical process, do not need optional equipment, easy to use, smail investments and quick rerurn.
Claims (5)
1. anti-corrosion deicing fluid of aluminium, it is characterized in that being formed by benzotriazole, Polysorbate 80, rare-earth salts, cats product, sodium alizarinsulfonate, propylene glycol, glycerol, wherein benzotriazole concentration is the 0.1-1.4 grams per liter, Polysorbate 80 concentration be the 1-2 milliliter/liter, rare-earth salts concentration is the 0.01-0.1 grams per liter, cationic surfactant concentration be 0.05-0.3 grams per liter, sodium alizarinsulfonate concentration be 0.001-0.008 grams per liter, propylene glycol concentration be the 150-500 milliliter/liter, glycerol concentration be the 100-450 milliliter/liter.
2. the anti-corrosion deicing fluid of aluminium according to claim 1, it is characterized in that described benzotriazole concentration is 0.8 grams per liter, Polysorbate 80 concentration is 1.5 milliliters/liter, rare-earth salts concentration is 0.05 grams per liter, and cationic surfactant concentration is that 0.15 grams per liter, sodium alizarinsulfonate concentration are that 0.004 grams per liter, propylene glycol concentration are that 300 milliliters/liter, glycerol concentration are 300 milliliters/liter.
3. the anti-corrosion deicing fluid of aluminium according to claim 1 and 2 is characterized in that rare upper salt is cerous salt.
4. the anti-corrosion deicing fluid of aluminium according to claim 1 and 2 is characterized in that described cationic surfactant is gemini quaternary ammonium salt.
5. the anti-corrosion deicing fluid of aluminium according to claim 1, its preparation method is as follows:
Step 1: benzotriazole, Polysorbate 80, rare-earth salts, cats product and sodium alizarinsulfonate are dissolved in propylene glycol and the glycerol fully by ultrasonic vibration;
Step 2: add entry, until the benzotriazole concentration in the solution is the 0.1-1.4 grams per liter, Polysorbate 80 concentration be the 1-2 milliliter/liter, rare-earth salts concentration is the 0.01-0.1 grams per liter, cationic surfactant concentration be 0.05-0.3 grams per liter, sodium alizarinsulfonate concentration be 0.001-0.008 grams per liter, propylene glycol concentration be the 150-500 milliliter/liter, glycerol concentration be the 100-450 milliliter/liter;
Step 3: repeatedly stir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210376288.3A CN102851002B (en) | 2012-10-08 | 2012-10-08 | Aluminium Anti-corrosion antifreeze liquid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210376288.3A CN102851002B (en) | 2012-10-08 | 2012-10-08 | Aluminium Anti-corrosion antifreeze liquid |
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| Publication Number | Publication Date |
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| CN102851002A true CN102851002A (en) | 2013-01-02 |
| CN102851002B CN102851002B (en) | 2015-08-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969319A (en) * | 2016-06-15 | 2016-09-28 | 南京达峰合金有限公司 | Solar super-heat-conductive medium with high corrosion resistance |
| CN106367039A (en) * | 2016-08-31 | 2017-02-01 | 金嵩 | Vehicle antifreezing solution and preparation method thereof |
| CN107090276A (en) * | 2017-04-26 | 2017-08-25 | 句容市江电电器机械有限公司 | A kind of corrosion-resistant antifreeze fluid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698793A (en) * | 2008-10-15 | 2010-04-28 | 上海港申化工有限公司 | automobile antifreeze |
| CN102021554A (en) * | 2010-12-09 | 2011-04-20 | 中国海洋大学 | Preparation process of cerium-doped silicon corrosion-resisting membrane on surface of aluminium alloy |
-
2012
- 2012-10-08 CN CN201210376288.3A patent/CN102851002B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698793A (en) * | 2008-10-15 | 2010-04-28 | 上海港申化工有限公司 | automobile antifreeze |
| CN102021554A (en) * | 2010-12-09 | 2011-04-20 | 中国海洋大学 | Preparation process of cerium-doped silicon corrosion-resisting membrane on surface of aluminium alloy |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105969319A (en) * | 2016-06-15 | 2016-09-28 | 南京达峰合金有限公司 | Solar super-heat-conductive medium with high corrosion resistance |
| CN106367039A (en) * | 2016-08-31 | 2017-02-01 | 金嵩 | Vehicle antifreezing solution and preparation method thereof |
| CN107090276A (en) * | 2017-04-26 | 2017-08-25 | 句容市江电电器机械有限公司 | A kind of corrosion-resistant antifreeze fluid |
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| CN102851002B (en) | 2015-08-05 |
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