CN115703673B - Hydrophobic rust-resistant material and preparation method thereof - Google Patents
Hydrophobic rust-resistant material and preparation method thereof Download PDFInfo
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- CN115703673B CN115703673B CN202110885926.3A CN202110885926A CN115703673B CN 115703673 B CN115703673 B CN 115703673B CN 202110885926 A CN202110885926 A CN 202110885926A CN 115703673 B CN115703673 B CN 115703673B
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 69
- 239000000463 material Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000004567 concrete Substances 0.000 claims abstract description 58
- 238000003756 stirring Methods 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- -1 alcohol amine salt Chemical class 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000006185 dispersion Substances 0.000 claims abstract description 23
- 239000002086 nanomaterial Substances 0.000 claims abstract description 20
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- 239000007864 aqueous solution Substances 0.000 claims abstract description 9
- 150000007524 organic acids Chemical class 0.000 claims abstract description 9
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 230000002401 inhibitory effect Effects 0.000 claims description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 9
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 9
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 claims description 7
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 6
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000005543 nano-size silicon particle Substances 0.000 claims description 6
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 6
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 6
- 229920000053 polysorbate 80 Polymers 0.000 claims description 6
- QAIPRVGONGVQAS-DUXPYHPUSA-N trans-caffeic acid Chemical compound OC(=O)\C=C\C1=CC=C(O)C(O)=C1 QAIPRVGONGVQAS-DUXPYHPUSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 claims description 5
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- RWZYAGGXGHYGMB-UHFFFAOYSA-N anthranilic acid Chemical compound NC1=CC=CC=C1C(O)=O RWZYAGGXGHYGMB-UHFFFAOYSA-N 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 235000015165 citric acid Nutrition 0.000 claims description 4
- YGUFXEJWPRRAEK-UHFFFAOYSA-N dodecyl(triethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OCC)(OCC)OCC YGUFXEJWPRRAEK-UHFFFAOYSA-N 0.000 claims description 4
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 4
- CZWLNMOIEMTDJY-UHFFFAOYSA-N hexyl(trimethoxy)silane Chemical compound CCCCCC[Si](OC)(OC)OC CZWLNMOIEMTDJY-UHFFFAOYSA-N 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- ACEAELOMUCBPJP-UHFFFAOYSA-N (E)-3,4,5-trihydroxycinnamic acid Natural products OC(=O)C=CC1=CC(O)=C(O)C(O)=C1 ACEAELOMUCBPJP-UHFFFAOYSA-N 0.000 claims description 3
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 3
- 239000005711 Benzoic acid Substances 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 235000010323 ascorbic acid Nutrition 0.000 claims description 3
- 239000011668 ascorbic acid Substances 0.000 claims description 3
- 229960005070 ascorbic acid Drugs 0.000 claims description 3
- 235000010233 benzoic acid Nutrition 0.000 claims description 3
- 229940074360 caffeic acid Drugs 0.000 claims description 3
- 235000004883 caffeic acid Nutrition 0.000 claims description 3
- QAIPRVGONGVQAS-UHFFFAOYSA-N cis-caffeic acid Natural products OC(=O)C=CC1=CC=C(O)C(O)=C1 QAIPRVGONGVQAS-UHFFFAOYSA-N 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims description 3
- 229940043276 diisopropanolamine Drugs 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 239000004310 lactic acid Substances 0.000 claims description 3
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- NMEPHPOFYLLFTK-UHFFFAOYSA-N trimethoxy(octyl)silane Chemical compound CCCCCCCC[Si](OC)(OC)OC NMEPHPOFYLLFTK-UHFFFAOYSA-N 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 2
- XFDUHJPVQKIXHO-UHFFFAOYSA-N 3-aminobenzoic acid Chemical compound NC1=CC=CC(C(O)=O)=C1 XFDUHJPVQKIXHO-UHFFFAOYSA-N 0.000 claims description 2
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-O N-dimethylethanolamine Chemical compound C[NH+](C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-O 0.000 claims description 2
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 2
- 229960004050 aminobenzoic acid Drugs 0.000 claims description 2
- 239000012298 atmosphere Substances 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 239000001630 malic acid Substances 0.000 claims description 2
- 235000011090 malic acid Nutrition 0.000 claims description 2
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 claims description 2
- DRRZZMBHJXLZRS-UHFFFAOYSA-N n-[3-[dimethoxy(methyl)silyl]propyl]cyclohexanamine Chemical compound CO[Si](C)(OC)CCCNC1CCCCC1 DRRZZMBHJXLZRS-UHFFFAOYSA-N 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 2
- 229960004889 salicylic acid Drugs 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 150000002169 ethanolamines Chemical class 0.000 abstract description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 8
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 22
- 229910000831 Steel Inorganic materials 0.000 description 21
- 239000010959 steel Substances 0.000 description 21
- 239000003112 inhibitor Substances 0.000 description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 230000007797 corrosion Effects 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000005764 inhibitory process Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000036571 hydration Effects 0.000 description 4
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000012744 reinforcing agent Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- XGRSAFKZAGGXJV-UHFFFAOYSA-N 3-azaniumyl-3-cyclohexylpropanoate Chemical compound OC(=O)CC(N)C1CCCCC1 XGRSAFKZAGGXJV-UHFFFAOYSA-N 0.000 description 2
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 150000001414 amino alcohols Chemical class 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000012088 reference solution Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 229960004711 sodium monofluorophosphate Drugs 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- DLINORNFHVEIFE-UHFFFAOYSA-N hydrogen peroxide;zinc Chemical compound [Zn].OO DLINORNFHVEIFE-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Abstract
The invention discloses a hydrophobic rust-resistant material and a preparation method thereof. The hydrophobic rust-resistant material provided by the invention comprises the following components in percentage by mass: 20% -35% of an ethanolamine salt, 0.5% -10% of organic silicon, 5% -30% of a nanomaterial dispersion liquid, 1% -5% of an emulsifier and the balance of water; the alcohol amine salt is alcohol amine salt aqueous solution prepared by stirring and reacting organic acid, alcohol amine and water according to a proportion. The hydrophobic rust-resistant material mainly comprising the ethanolamine salt provided by the invention has the advantages of realizing the dual functions of concrete hydrophobicity and rust resistance and protecting the reinforcing steel bars in a multifunctional way.
Description
Technical Field
The invention belongs to the technical field of reinforcement corrosion protection in reinforced concrete structures, and particularly relates to a hydrophobic rust-resistant material and a preparation method thereof.
Background
Corrosion of steel bars is one of the key factors affecting durability of concrete structures, corrosion products in corrosion of steel bars can cause expansion and cracking of concrete, and cause reduction of adhesion between the steel bars and the concrete, and finally the service life of the concrete can be reduced. Therefore, the protection of the steel bars in the concrete is very critical, and the common steel bar protection measures at present are concrete coating, epoxy steel bars, high-performance concrete, special steel bars, steel bar rust inhibitors, electrochemical chlorine removal, cathodic protection and the like. Among them, the steel bar rust inhibitor is one of relatively inexpensive, simple and effective methods. And the reinforcing steel bar rust inhibitor is divided into an inorganic rust inhibitor and an organic rust inhibitor. Nitrite is most widely used in early inorganic rust inhibitors, but has carcinogenic effects and has been banned in many countries.
Organic rust inhibitors are attracting more and more attention, and alcohol amine substances can form stable covalent bonds with metals due to hetero atoms in the structures of the alcohol amine substances, so that the alcohol amine substances are strongly adsorbed on the surfaces of the steel bars, inhibit the corrosion of the steel bars and enhance the corrosion resistance of the steel bars. The alcohol amine substances can be transferred through liquid phase diffusion and gas phase, so that the adsorption effect of the concrete capillary is reduced and adsorbed on the surface of the steel bar, and the steel bar is protected.
Patent CN102432220B discloses a concrete rust inhibitor prepared by uniformly mixing carboxylic acid ethanolamine salt, sodium monofluorophosphate, anionic surfactant and water. The invention has good diffusion performance in concrete, can simultaneously act on the cathode and the anode of the reinforcing steel bars, and is combined with the reinforcing steel bars to form a stable integrated ring, thereby having excellent rust resistance. In addition, anions in the rust inhibitor can be combined with calcium ions in the concrete to form a precipitate, so that capillary holes in the concrete can be blocked, and the chloride ion permeation resistance of the concrete is improved. However, in the method, sodium monofluorophosphate affects the setting time of the concrete, the retarder is serious, the compressive strength of the concrete is affected, and the application range is limited.
The invention discloses a rust-resistant reinforcing agent for a steel fiber concrete surface layer and a preparation method thereof, and discloses a rust-resistant reinforcing agent with the combined action of a rust-resistant component and a hydrophobic component. However, the rust-resistant reinforcing agent is suitable for the surface of a steel fiber concrete structure, has limited application range and inconvenient coating construction.
The patent CN101269932A waterproof rust inhibitor and a preparation method thereof disclose a waterproof rust inhibitor prepared based on modified organosilicon and amino alcohol, which has waterproof and rust inhibition functions, but the amino alcohol is easy to volatilize, and the rust inhibition effect is unstable when being mixed into concrete, and the rust inhibition capability is limited.
Patent EP2310465B1 discloses a composition for building protection applications based on alkylalkoxysiloxanes with improved water repellency based on silane oligomers to achieve water repellency of the substrate, but the composition of the invention is painted or sprayed onto the concrete surface, has poor permeability and is inconvenient to construct.
Disclosure of Invention
Aiming at the problems that the existing rust inhibitor is complex in preparation, poor in rust inhibition effect and narrow in application range, and is doped into concrete to increase chloride ion diffusion coefficient and reduce compressive strength, the invention provides a hydrophobic rust inhibition material mainly comprising an ethanolamine salt, and a preparation method thereof, and meanwhile, double functions of concrete hydrophobicity and rust inhibition are realized, so that the reinforcing steel bar is protected in a multifunctional manner.
The invention provides a hydrophobic rust-resistant material which comprises the following components in percentage by mass:
the sum of the mass percentages of the components is 100 percent;
the alcohol amine salt is alcohol amine salt aqueous solution prepared by stirring organic acid, alcohol amine and water according to a molar ratio of 1:1-2:3-10;
the organic acid is selected from citric acid, malic acid, tartaric acid, ascorbic acid, lactic acid, benzoic acid, salicylic acid, caffeic acid, anthranilic acid, meta-aminobenzoic acid, para-aminobenzoic acid, and fatty acid with 1-20 carbon atoms. The organic acid is fatty acid with 1-20 carbon atoms, and the molecular structure is regulated and controlled by regulating the carbon atoms, so that the hydrophilic and hydrophobic properties of the molecule are regulated and controlled, and in addition, hetero atoms and benzene ring structures are added in the molecular formula; such as benzoic acid and aminobenzoic acid, so that the molecules contain lone pair electrons and pi bonds, and the adsorption performance of the molecules and metal atoms is optimized, thereby enhancing the rust resistance of the molecules.
The alcohol amine is selected from any one or more of monoethanolamine, diethanolamine, triethanolamine, N-dimethylethanolamine, diethanol monoisopropanolamine, monoethanol diisopropanolamine, N-diethyl ethanolamine, N-diethyl propanolamine and N-methyl diethanolamine.
The organic silicon is selected from any one or more of 3-aminopropyl trimethoxy silane, 3-aminopropyl triethoxy silane, N- (beta-aminoethyl) -gamma-aminopropyl trimethoxy silane, dodecyl triethoxy silane, isobutyl triethoxy silane, vinyl trimethoxy silane, mercaptopropyl trimethoxy silane, 3- [ (2, 3) -glycidoxy ] propyl methyl dimethoxy silane, N-octyl trimethoxy silane and N-hexyl trimethoxy silane. The organic silicon substance can be combined with hydration products and siloxane bonds to have a hydrophobic effect, such as dodecyl triethoxy silane, n-octyl trimethoxy silane and n-hexyl trimethoxy silane, one end of the organic silicon substance contains long chain groups and has a hydrophobic property, the other end of the organic silicon substance contains siloxane groups, the organic silicon substance can form a film on a base material, the organic silicon substance can form resin through dealcoholization with water, the hydroxyl group has good crosslinking capability with a concrete material, and the organic silicon substance can form a hydrophobic layer with the base material in a connecting way, so that the surface characteristics of the concrete are changed, and the organic silicon substance has good hydrophobic property.
The nano material dispersion liquid is an aqueous solution of nano materials, and the concentration range of the nano material dispersion liquid is 5-30% in terms of mass fraction; the nano material dispersion liquid is selected from any one or more of nano titanium dioxide dispersion liquid, nano silicon dioxide dispersion liquid, nano calcium carbonate dispersion liquid, nano aluminum oxide dispersion liquid, nano magnesium oxide dispersion liquid and nano zinc oxide dispersion liquid, wherein nano titanium dioxide, nano silicon dioxide, nano calcium carbonate, nano aluminum oxide, nano magnesium oxide and nano zinc oxide are used as the nano materials, the preferred nano particle size of the nano material is 5-300nm, the nano particles with the particle size have good stability, larger specific surface area, strong chemical combination adsorptivity, charged hydroxyl groups and high surface activity, the strength and wear resistance of the concrete can be improved, and in addition, the nano material has excellent permeability.
The emulsifier is selected from any one or more of Tween 20, tween 80, span 40 and span 60. According to the invention, the HLB value is regulated and controlled by regulating each proportion of Tween 20, tween 80, span 40 and span 60, wherein the lower the HLB value is, the stronger the lipophilicity is; the higher the HLB value, the more hydrophilic. The emulsion is more stable by the emulsifier coating the dispersed phase droplets to prevent coalescence.
The invention relates to a preparation method of a hydrophobic rust-resistant material, which comprises the following steps:
(1) Sequentially adding organic acid, alcohol amine and water into a reactor, and stirring and reacting to obtain an alcohol amine salt aqueous solution;
the reaction conditions are as follows: the reaction temperature is 40-70 ℃, the reaction time is 2-6 h, and the reaction atmosphere is nitrogen;
the alcohol amine salt is prepared by reacting the alcohol amine with the organic acid under the heating condition, so that the alcohol amine is prevented from being directly doped into the concrete and losing effectiveness due to volatilization, the stability of the alcohol amine in the concrete is enhanced, in addition, the alcohol amine contains N atoms, and the rust resistance of molecules is enhanced.
(2) Sequentially adding the alcohol amine aqueous solution prepared in the step (1), the nano material dispersion liquid, the organic silicon and water into a reactor, stirring and mixing, and reacting;
the reaction conditions are as follows: the reaction temperature is 30-60 ℃, the stirring speed is 500-2000 r/min, and the reaction time is 2-4 h;
(3) Adding an emulsifying agent into the mixture in the step (2) and stirring for 1-6 h to obtain the hydrophobic rust-resistant material.
The hydrophobic rust-resistant material is suitable for concrete, and the mixing amount of the hydrophobic rust-resistant material is 1-10% of the mass fraction of the cementing material. The hydrophobic rust-resistant material is doped into concrete, and can be used for buckling water in an equivalent amount (namely, replacing the water consumption in the preparation of the concrete).
The invention is characterized in that the ethanolamine salt can be rapidly adsorbed on the surface of the steel bar, and the critical chloride ion concentration is improved. The critical chloride ion concentration is the chloride ion concentration when the steel bar is corroded and the passivation film is just damaged, and the critical chloride ion concentration reflects the capability of the concrete to resist the corrosion of the chloride ions. By linking the chloride ion concentration value with the service life of the concrete, the larger the critical chloride ion concentration value is, the longer the service life of the concrete is. Therefore, the alcohol amine salt can improve the critical chloride ion concentration, thereby improving the durability of the concrete structure.
The invention is also characterized in that the organosilicon can form a silane polymer near hydration products along with hydration of the cementing material in the concrete, so that the compactness of the concrete is improved, and the silicon-oxygen bond can be combined with hydroxyl on the surface of the concrete to enable the concrete to have hydrophobicity. In addition, nanomaterials have four major effects of size, surface, macroscopic quantum tunneling, and interface. The composite material can be doped into concrete to fill gaps in the concrete, improve the porosity of the concrete, reduce the porosity and the ion transmission, enhance the compactness of the concrete, enhance the compressive strength of the concrete, make up for the defect of the strength of the concrete and fully utilize the activity of the surface of the nano material.
Compared with the prior art, the invention has the following beneficial effects:
the hydrophobic rust-resistant material prepared by the invention can be used in a concrete structure, the ethanolamine salt can act on the surface of the steel bar to inhibit corrosion of the steel bar, the organic silicon substance can be combined with hydration products and silicon-oxygen bonds to have a hydrophobic effect to inhibit chloride ion transmission, and in addition, the nano material can enhance the compactness of the concrete, so that the integration of the hydrophobic and rust-resistant functions of the concrete is realized.
Detailed Description
The present invention will be described in detail with reference to specific examples.
Example 1
(1) Under the nitrogen environment, 137g of para-aminobenzoic acid, 163g of mono-ethanol diisopropanolamine and 150g of water are sequentially added into a reactor, the temperature is set at 45 ℃, and after stirring for 2 hours, the reaction is finished, so that an alcohol amine salt substance can be obtained;
(2) 200g of the ethanolamine salt, 10g of the dodecyl triethoxysilane, 50g of the nano titanium dioxide dispersion liquid and 725g of water which are prepared in the step (1) are sequentially added into a reactor, the mixture is uniformly stirred, the reaction temperature is set to 30 ℃, the stirring speed is 500r/min, 3g of Tween 80 and 7g of span 40 are added after stirring for 2 hours, and the hydrophobic rust-inhibiting material is obtained after stirring for 6 hours, and is marked as M1.
Example 2
(1) Under the nitrogen environment, sequentially adding 150g of tartaric acid, 149g of triethanolamine and 100g of water into a reactor, setting the temperature to 40 ℃, and stirring for 2 hours to finish the reaction to obtain an alcohol amine salt substance;
(2) Sequentially adding 250g of the ethanolamine salt, 20g of the isobutyl triethoxysilane, 50g of the nano titanium dioxide dispersion liquid and 665g of water which are prepared in the step (1) into a reactor, uniformly stirring, setting the reaction temperature to 30 ℃, stirring at 500r/min, stirring for 3 hours, adding 9g of Tween 20 and 6g of span 40, and stirring for 4 hours to obtain the hydrophobic rust-inhibiting material, wherein the hydrophobic rust-inhibiting material is denoted as M2.
Example 3
(1) Under the nitrogen environment, 228g of tetradecanoic acid, 117g of N, N-diethyl ethanolamine and 150g of water are sequentially added into a reactor, the temperature is set to 70 ℃, and after stirring for 6 hours, the reaction is finished, so that an alcohol amine salt substance can be obtained;
(2) 300g of the ethanolamine salt, 25g of the isobutyl triethoxysilane, 50g of the nano silicon dioxide dispersion liquid and 665g of water which are prepared in the step (1) are sequentially added into a reactor, the mixture is uniformly stirred, the reaction temperature is set to be 30 ℃, the stirring speed is 1500r/min, 5g of Tween 20 and 10g of span 60 are added after stirring for 2 hours, the mixture is stirred for 6 hours, and the hydrophobic rust-inhibiting material is marked as M3.
Example 4
(1) 144g of n-octanoic acid, 186g of diethanol monoisopropanolamine and 100g of water are sequentially added into a reactor under the nitrogen environment, the temperature is set to 70 ℃, and after stirring for 6 hours, the reaction is finished, so that an alcohol amine salt substance can be obtained;
(2) Sequentially adding 250g of the ethanolamine salt, 30g of the isobutyl triethoxysilane, 150g of the nano silicon dioxide dispersion liquid and 455g of water which are prepared in the step (1) into a reactor, uniformly stirring, setting the reaction temperature to 50 ℃, stirring at 1500r/min, stirring for 2h, adding 5g of Tween 20 and 10g of span 60, and stirring for 5h to obtain the hydrophobic rust-inhibiting material, wherein the hydrophobic rust-inhibiting material is denoted as M4.
Example 5
(1) Under the nitrogen environment, sequentially adding 90g of lactic acid, 91.5g of monoethanolamine and 100g of water into a reactor, setting the temperature to 70 ℃, and stirring for 6 hours to finish the reaction to obtain an alcohol amine salt substance;
(2) Sequentially adding 250g of the ethanolamine salt, 40g of mercaptopropyl trimethoxysilane, 100g of nano zinc oxide dispersion liquid and 600g of water which are prepared in the step (1) into a reactor, uniformly stirring, setting the reaction temperature to 50 ℃, stirring at a speed of 1000r/min, stirring for 3 hours, adding 5g of Tween 20 and 5g of span 60, and stirring for 6 hours to obtain the hydrophobic rust-inhibiting material, wherein the hydrophobic rust-inhibiting material is denoted as M5.
Example 6
(1) Under the nitrogen environment, 192g of citric acid, 149N, N-diethyl ethanolamine and 180g of water are sequentially added into a reactor, the temperature is set to be 50 ℃, and after stirring for 4 hours, the reaction is finished, so that an alcohol amine salt substance can be obtained;
(2) Sequentially adding 350g of the ethanolamine salt, 30g of mercaptopropyl trimethoxysilane, 200g of nano zinc oxide dispersion liquid and 410g of water which are prepared in the step (1) into a reactor, uniformly stirring, setting the reaction temperature to 50 ℃, stirring at 1500r/min, stirring for 4 hours, adding 2g of Tween 80 and 8g of span 60, and stirring for 4 hours to obtain the hydrophobic rust-inhibiting material, wherein the hydrophobic rust-inhibiting material is denoted as M6.
Example 7
(1) 180g of caffeic acid, 151g of N, N-diethyl propanolamine and 180g of water are sequentially added into a reactor under the nitrogen environment, the temperature is set to 50 ℃, and after stirring for 4 hours, the reaction is finished, so that an alcohol amine salt substance can be obtained;
(2) Sequentially adding 350g of the ethanolamine salt, 100g of vinyl trimethoxysilane, 150g of nano calcium carbonate dispersion liquid and 385g of water which are prepared in the step (1) into a reactor, uniformly stirring, setting the reaction temperature to 50 ℃, stirring at a speed of 1000r/min, stirring for 4 hours, adding 5g of Tween 20 and 10g of span 40, and stirring for 4 hours to obtain the hydrophobic rust-inhibiting material, wherein the hydrophobic rust-inhibiting material is denoted as M7.
Example 8
(1) 176g of ascorbic acid, 119N-methyldiethanolamine and 150g of water are sequentially added into a reactor under the nitrogen environment, the temperature is set to 70 ℃, and after stirring for 6 hours, the reaction is finished, so that an alcohol amine salt substance can be obtained;
(2) Sequentially adding 250g of the ethanolamine salt, 120g of vinyl trimethoxy silane, 130g of nano calcium carbonate dispersion liquid and 480g of water prepared in the step (1) into a reactor, uniformly stirring, setting the reaction temperature to 50 ℃, stirring at a speed of 1000r/min, stirring for 4 hours, adding 15g of Tween 20 and 5g of span 60, and stirring for 4 hours to obtain the hydrophobic rust-inhibiting material, wherein the hydrophobic rust-inhibiting material is denoted as M8.
Comparative example 1
(1) Under the nitrogen environment, 192g of citric acid, 119g N-methyl diethanolamine and 150g of water are sequentially added into a reactor, the temperature is set to 60 ℃, the reaction is finished after stirring for 6 hours, an alcohol amine salt substance can be obtained, then 350g of the obtained alcohol amine salt is added into 650g of water and stirred for 1 hour, and the obtained alcohol amine salt is taken as a reference hydrophobic rust-inhibiting material and is marked as R1.
Comparative example 2
(1) 300g of triethanolamine, 25g of n-hexyltrimethoxysilane, 50g of nano zinc dioxide dispersion and 665g of water are sequentially added into a reactor, the mixture is uniformly stirred, the reaction temperature is set to 35 ℃, the stirring speed is 1000R/min, 7g of Tween 80 and 8g of span 60 are added after stirring for 2 hours, and the mixture is stirred for 4 hours, so that the hydrophobic rust-inhibiting material is denoted as R2.
Comparative example 3
350g of N, N-dimethylethanolamine purchased from national pharmaceutical company chemical reagent Co., ltd.) was added to 650g of water and stirred for 1 hour, and the control hydrophobic rust-inhibiting material was designated as R3.
Comparative example 4
As comparative example R4, a commercially available Sika FerroGard 901 rust inhibitor was used.
Performance testing
1. Resistance to rust
The hydrophobic rust-resistant material prepared by the method is subjected to a ratio test of the rust area percentage of reinforcing steel bars in a saline water dry-wet circulation environment by referring to JT/T537-2018 reinforced concrete rust inhibitor, wherein the used reinforcing steel bar test piece Q235 reinforcing steel bars is 3g Ca (OH) reference solution 2 17.5g NaCl,479.5g water. The rust inhibitor solution is prepared by mixing 5% of hydrophobic rust inhibitor material into the reference solution. The test is carried out under the environment of 20 ℃ and 77% humidity, and the corrosion area percentage A and R of the steel bar are calculated according to JT/T537-2018, wherein R is the corrosion area percentage ratio of a test piece doped with the hydrophobic rust-resistant material to a reference test piece after 50 dry and wet cycles, and the rust-resistant efficiency eta=1-R. The experimental calculation results are shown in table 1.
Table 1 rust resistance properties of each example and comparative example
| A(％) | R(％) | η(％) | |
| Datum | 60.00 | - | - |
| M1 | 1.51 | 2.52 | 97.48 |
| M2 | 1.85 | 3.08 | 96.92 |
| M3 | 2.07 | 3.45 | 96.55 |
| M4 | 1.93 | 3.22 | 96.78 |
| M5 | 2.16 | 3.60 | 96.40 |
| M6 | 3.43 | 5.72 | 94.28 |
| M7 | 5.12 | 8.53 | 91.47 |
| M8 | 4.25 | 7.08 | 92.92 |
| R1 | 6.90 | 11.50 | 88.50 |
| R2 | 11.65 | 19.42 | 80.58 |
| R3 | 16.73 | 27.88 | 72.12 |
| R4 | 6.87 | 11.45 | 88.55 |
As can be seen from Table 1, the hydrophobic rust-inhibiting material of the invention has very obvious rust-inhibiting effect, the rust-inhibiting efficiency is over 90%, and the alcohol amine salt alone has good rust-inhibiting effect, but R1 has poorer rust-inhibiting effect than the examples; and the rust resistance R2 is worse than R1 without using an alkanolamine salt; the commercially available Sika FerroGard 901 rust inhibitor has the same rust resistance as R1; in addition, the rust resistance effect of the hydrophobic rust resistance material of the embodiment is obviously better than that of N, N-dimethylethanolamine.
2. Water-absorbing and water-repellent properties of concrete
The hydrophobic rust-resistant material in the above example was evaluated for water absorption and hydrophobic property with reference to GB/T50082 "standard for test method of long-term performance and durability of ordinary concrete", W/c=0.35 in the concrete, cement was conch po.42.5 portland cement, sand was river sand, stone was basalt, particle size range was 5-15mm and 10-25mm, sand ratio was 40%, reference was no hydrophobic material was added, M1-M6 hydrophobic rust-resistant material was 5% of mass fraction of gel material, contact angle and 30min water absorption after 7d age of the test concrete, and experimental results are shown in table 2.
Table 2 water absorption and contact angle
| 30min Water absorption (%) | Contact angle (°) | |
| Datum | 3.45 | 8.35 |
| M1 | 0.91 | 105.5 |
| M2 | 0.83 | 112.3 |
| M3 | 0.95 | 110.2 |
| M4 | 1.01 | 103.1 |
| M5 | 1.12 | 100.5 |
| M6 | 0.79 | 114.7 |
| M7 | 0.95 | 102.9 |
| M8 | 0.90 | 104.1 |
| R1 | 3.31 | 11.03 |
| R2 | 1.40 | 96.01 |
| R3 | 3.66 | 6.73 |
| R4 | 3.36 | 10.05 |
As can be seen from Table 2, after the hydrophobic rust-inhibiting material of the invention is mixed into the concrete, the water absorption rate of 30min is obviously reduced compared with that of the reference group and is lower than that of the control group, and the concrete can inhibit the water absorption after the hydrophobic rust-inhibiting material of the invention is added into the concrete, so that the water absorption rate is reduced. In addition, the contact angles of M1-M7 are above 100 degrees, which shows that after the hydrophobic rust-resistant material is added into concrete, the concrete has good hydrophobic property, the R1 contact angle is lower, the hydrophobic property is poorer, and the alcohol amine salt concrete alone has no hydrophobic property; r2 has certain hydrophobic capacity, but the rust resistance effect is general; r3 has no hydrophobic effect; r4 and R1 have equivalent hydrophobic capacity and poor hydrophobic performance. It is comprehensively seen that the hydrophobic rust-resistant material provided by the invention has good rust resistance and good hydrophobic performance.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (5)
1. The hydrophobic rust-resistant material is characterized by comprising the following components in percentage by mass:
20 to 35 percent of alcohol amine salt,
0.5 to 10 percent of organic silicon,
5% -30% of nano material dispersion liquid,
1% -5% of emulsifying agent,
the balance of water is water,
the sum of the mass percentages of the components is 100 percent;
the alkanolamine salt is an aqueous solution of an alkanolamine salt prepared by stirring organic acid, an alkanolamine salt and water according to a molar ratio of 1:1-2:3-10;
the organic acid is selected from any one or more of citric acid, malic acid, tartaric acid, ascorbic acid, lactic acid, benzoic acid, salicylic acid, caffeic acid, anthranilic acid, m-aminobenzoic acid, p-aminobenzoic acid and fatty acid with 1-20 carbon atoms;
the alcohol amine is selected from any more than one of monoethanolamine, diethanolamine, triethanolamine, N-dimethylethanolamine, diethanol monoisopropanolamine, monoethanol diisopropanolamine, N-diethyl ethanolamine, N-diethyl propanolamine and N-methyl diethanolamine;
the nano material dispersion liquid is an aqueous solution of nano materials, and the concentration range of the nano material dispersion liquid is 5-30% in terms of mass fraction;
the nano material dispersion liquid is selected from any one or more than one of nano titanium dioxide dispersion liquid, nano silicon dioxide dispersion liquid, nano calcium carbonate dispersion liquid, nano aluminum oxide dispersion liquid, nano magnesium oxide dispersion liquid and nano zinc oxide dispersion liquid, wherein nano titanium dioxide, nano silicon dioxide, nano calcium carbonate, nano aluminum oxide, nano magnesium oxide and nano zinc oxide are used as the nano materials;
the particle size of the nano material is 5-300nm.
2. The hydrophobic rust inhibiting material according to claim 1, wherein the organosilicon is selected from any one or more of 3-aminopropyl trimethoxysilane, 3-aminopropyl triethoxysilane, N- (β -aminoethyl) - γ -aminopropyl trimethoxysilane, dodecyl triethoxysilane, isobutyl triethoxysilane, vinyl trimethoxysilane, mercaptopropyl trimethoxysilane, 3- [ (2, 3) -glycidoxy ] propyl methyl dimethoxy silane, N-octyl trimethoxysilane, N-hexyl trimethoxysilane.
3. The hydrophobic rust inhibiting material of claim 1 wherein the emulsifying agent is selected from the group consisting of tween 20, tween 80, span 40, span 60.
4. A method for preparing a hydrophobic rust inhibiting material according to any one of claims 1 to 3, comprising the steps of:
(1) Sequentially adding organic acid, alcohol amine and water into a reactor, and stirring and reacting to obtain an alcohol amine salt aqueous solution;
the reaction conditions are as follows: the reaction temperature is 40-70 ℃, the reaction time is 2-6 h, and the reaction atmosphere is nitrogen;
(2) Sequentially adding the alcohol amine aqueous solution prepared in the step (1), the nano material dispersion liquid, the organic silicon and water into a reactor, stirring and mixing, and reacting;
the reaction conditions are as follows: the reaction temperature is 30-60 ℃, the stirring speed is 500-2000 r/min, and the reaction time is 2-4 h;
(3) And (3) adding an emulsifying agent into the mixture in the step (2), and stirring for 1-6 hours to obtain the hydrophobic rust-resistant material.
5. The method for applying the hydrophobic rust-resistant material according to any one of claims 1 to 3, wherein the hydrophobic rust-resistant material is applied to concrete, and the mixing amount of the hydrophobic rust-resistant material is 1-10% of the mass fraction of the cementing material; the hydrophobic rust-resistant material is equivalent to water when being mixed into concrete.
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