CN117603613B - Vehicle chassis antirust agent and preparation method thereof - Google Patents
Vehicle chassis antirust agent and preparation method thereof Download PDFInfo
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- CN117603613B CN117603613B CN202311650855.4A CN202311650855A CN117603613B CN 117603613 B CN117603613 B CN 117603613B CN 202311650855 A CN202311650855 A CN 202311650855A CN 117603613 B CN117603613 B CN 117603613B
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- 239000013556 antirust agent Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 239000003822 epoxy resin Substances 0.000 claims abstract description 48
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 48
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003112 inhibitor Substances 0.000 claims abstract description 26
- 239000000654 additive Substances 0.000 claims abstract description 22
- 239000000839 emulsion Substances 0.000 claims abstract description 22
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000000996 additive effect Effects 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 18
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 239000012745 toughening agent Substances 0.000 claims abstract description 10
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 7
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 6
- 230000002421 anti-septic effect Effects 0.000 claims abstract description 6
- 239000003899 bactericide agent Substances 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 35
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 28
- 239000011259 mixed solution Substances 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 25
- 239000011148 porous material Substances 0.000 claims description 22
- 238000009210 therapy by ultrasound Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 17
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 14
- 229920000570 polyether Polymers 0.000 claims description 14
- 159000000007 calcium salts Chemical class 0.000 claims description 13
- 239000008234 soft water Substances 0.000 claims description 12
- QZXSMBBFBXPQHI-UHFFFAOYSA-N N-(dodecanoyl)ethanolamine Chemical compound CCCCCCCCCCCC(=O)NCCO QZXSMBBFBXPQHI-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000003431 cross linking reagent Substances 0.000 claims description 10
- 150000001412 amines Chemical class 0.000 claims description 9
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 9
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 229920005862 polyol Polymers 0.000 claims description 8
- 150000003077 polyols Chemical class 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 7
- 239000005909 Kieselgur Substances 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 238000010306 acid treatment Methods 0.000 claims description 3
- 150000008064 anhydrides Chemical class 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 claims description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 2
- RZRILSWMGXWSJY-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;sulfuric acid Chemical compound OS(O)(=O)=O.OCCN(CCO)CCO RZRILSWMGXWSJY-UHFFFAOYSA-N 0.000 claims description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 2
- 239000010883 coal ash Substances 0.000 claims description 2
- IUNMPGNGSSIWFP-UHFFFAOYSA-N dimethylaminopropylamine Chemical compound CN(C)CCCN IUNMPGNGSSIWFP-UHFFFAOYSA-N 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 229920002681 hypalon Polymers 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 229940067741 sodium octyl sulfate Drugs 0.000 claims description 2
- WFRKJMRGXGWHBM-UHFFFAOYSA-M sodium;octyl sulfate Chemical compound [Na+].CCCCCCCCOS([O-])(=O)=O WFRKJMRGXGWHBM-UHFFFAOYSA-M 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 229940080117 triethanolamine sulfate Drugs 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 239000005011 phenolic resin Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 14
- 230000007797 corrosion Effects 0.000 abstract description 11
- 238000005260 corrosion Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 26
- -1 and in step S2 Substances 0.000 description 17
- 229920006241 epoxy vinyl ester resin Polymers 0.000 description 15
- 239000002585 base Substances 0.000 description 14
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical group CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 14
- 239000003973 paint Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000007334 copolymerization reaction Methods 0.000 description 9
- 230000002209 hydrophobic effect Effects 0.000 description 9
- 230000002265 prevention Effects 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 239000013530 defoamer Substances 0.000 description 6
- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical group [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- 229920000909 polytetrahydrofuran Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/10—Epoxy resins modified by unsaturated compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/56—Amines together with other curing agents
- C08G59/60—Amines together with other curing agents with amides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of chassis antirust agents, in particular to a vehicle chassis antirust agent and a preparation method thereof, wherein the vehicle chassis antirust agent comprises the following raw materials in parts by weight: 40-70 parts of modified epoxy resin, 10-30 parts of acrylic emulsion, 5-10 parts of compound antirust agent, 20-40 parts of modified additive, 1-4 parts of dispersing agent, 1-2 parts of leveling agent, 0.5-2 parts of defoaming agent and 1-2 parts of antiseptic bactericide, wherein the modified epoxy resin is prepared by taking epoxy resin as a matrix and modifying the epoxy resin through a toughening agent, a curing agent and a penetrating agent. The purpose is to obtain the rust inhibitor with high permeability, high strength, corrosion resistance and dirt resistance, so that the service life of the sprayed part can be prolonged after spraying, and the bonding performance with the original coating is good after re-spraying.
Description
Technical Field
The invention relates to the technical field of chassis rust inhibitors, in particular to a vehicle chassis rust inhibitor and a preparation method thereof.
Background
In view of reducing the weight of a vehicle body and saving cost, a plurality of automobile manufacturers adopt aluminum alloy, sheet metal and the like to replace all previous sheet metal or steel plates in a matching way, so that the chassis of the vehicle body is thinned, the quality of the chassis of the vehicle is reduced on the basis of ensuring the previous performance as much as possible, and the weight of the vehicle is reduced. The automobile chassis comprises a transmission system, a running system, a steering system, a braking system and the like, wherein the places needing to be protected are more, and the automobile chassis is used for preventing external dust, water, chemicals and the like from entering to cause rusting, corrosion, abrasion or other damage of parts, so that the function exertion of the system is influenced.
At present, rust prevention treatment or chassis armor spraying is generally carried out on a chassis, when the rust prevention treatment is carried out, rust prevention paint is mainly sprayed, main flow products of the rust prevention paint are oily rust prevention paint and water-based rust prevention paint, and the oily rust prevention paint is gradually reduced in use due to insufficient environmental protection and high toxicity; the water-based antirust paint has a good protection function and can meet the requirements on environmental protection, so that the application is gradually increased, but the protection period is shorter, and the use is limited. When the chassis armor is processed, after spraying, the chassis armor can be dried rapidly, and a firm elastic protective layer is formed, so that the impact of flying stones and sand can be prevented, the corrosion of moisture, acid rain and salt to the metal of the chassis of the vehicle can be avoided, the rust and corrosion of the chassis can be prevented, and the driving safety of a vehicle owner can be protected. The chassis armor is mainly made of high molecular water paint and composite high molecular resin paint at present, so that the impact of road sand and stone on the chassis can be effectively prevented, and slight bottom dragging friction is prevented; corrosion of acid, alkali and salt to the chassis is prevented, but the film forming time is longer, the water resistance is poor, the strength is low, and when armor spraying nursing is carried out on the chassis again, the armor parts are required to be cleaned completely and then sprayed again, so that the use cost is high and the adhesive strength is not high.
Disclosure of Invention
In view of the above, the invention aims to provide a vehicle chassis antirust agent and a preparation method thereof, which can obtain the antirust agent with high permeability, high strength, corrosion resistance and dirt resistance, can prolong the service life of a sprayed part after spraying, and has good bonding performance with an original coating after re-spraying.
The invention solves the technical problems by the following technical means:
The antirust agent for the chassis of the vehicle comprises the following raw materials in parts by weight: 40-70 parts of modified epoxy resin, 10-30 parts of acrylic emulsion, 5-10 parts of compound antirust agent, 20-40 parts of modified additive, 1-4 parts of dispersing agent, 1-2 parts of leveling agent, 0.5-2 parts of defoaming agent and 1-2 parts of antiseptic bactericide, wherein the modified epoxy resin is prepared by taking epoxy resin as a matrix and modifying the epoxy resin through a toughening agent, a curing agent and a penetrating agent.
According to the technical means, the modified epoxy resin is adopted as a matrix, and the acrylic emulsion, the compound antirust agent and the modified additive are matched, so that the antirust agent with good performances such as high permeability, high strength, corrosion resistance, dirt resistance and the like can be prepared, when the antirust agent is used on a chassis of a vehicle, the formed armor protection layer can resist corrosion of external acid, alkali, salt and sewage to the chassis, can resist impact, abrasion and the like of sand and stone to the chassis, and can reduce the cleaning area of an original armor protection layer and lower the nursing cost when the chassis is nursed.
Preferably, the epoxy resin is one or more of bisphenol A epoxy resin and phenolic resin; the toughening agent is one or more of acrylate rubber, carboxyl nitrile rubber, chlorosulfonated polyethylene, carboxyl liquid nitrile rubber and carboxyl-terminated liquid nitrile rubber, and the curing agent is one or more of amine curing agent and anhydride curing agent.
Further preferably, bisphenol A epoxy vinyl ester resin is used as the epoxy resin, the epoxy value (eq/g) is 0.4-0.55, and the viscosity is 500-2000mpa.s.
After the bisphenol A epoxy vinyl ester resin is cured at room temperature, the adhesive force to various materials, particularly to metals, is strong, and has excellent performances of chemical resistance, high mechanical strength, corrosion resistance and the like. By selecting bisphenol A epoxy vinyl ester resin in liquid state, the epoxy vinyl ester resin can form good matching with other raw materials and is cured quickly.
Further preferably, the toughening agent is an acrylate rubber, and the strength, flexibility, heat resistance and weather resistance of the bisphenol A epoxy vinyl ester resin can be enhanced by using the acrylate rubber as the active toughening agent to chemically crosslink with the bisphenol A epoxy vinyl ester resin.
Further preferably, the curing agent is an amine curing agent, the amine curing agent is a mixture of fatty amine and polyamide, and the mass ratio of the fatty amine to the polyamide is 1: (1-2).
By adopting fatty amine and polyamide as curing agents, the bisphenol A epoxy vinyl ester resin can be cured at room temperature more quickly, and the curing efficiency is accelerated.
Preferably, the penetrating agent is one or more of ferric nitrate, aluminum nitrate and polyether polyol.
In the conventional use, ferric nitrate and aluminum nitrate are used as intermediates or catalysts of chemical reactions, in the scheme, ferric nitrate or aluminum nitrate is used as a metal permeable substance, and liquid ferric nitrate or aluminum nitrate is used as a penetrating agent, so that when the liquid ferric nitrate or aluminum nitrate is added into an antirust agent, the liquid ferric nitrate or aluminum nitrate can be combined with a chassis and penetrate into the chassis to form a multi-layer complex, and the combination property is enhanced. The polyether polyol adopts neutral polyether polyol, in particular polytetrahydrofuran glycol, and when the polyether polyol is used together with bisphenol A epoxy vinyl ester resin, the resin can be permeated again after the resin is cured, so that the physical adhesiveness of the resin is enhanced, and the adhesiveness and the impermeability of the bonding part are further enhanced.
Preferably, the preparation method of the modified epoxy resin specifically comprises the following steps: placing the epoxy resin in a container, stirring for 3-5min, adding the toughening agent and the curing agent, continuously stirring for 10-20min, adding the penetrating agent, and continuously stirring for 5-10min to obtain the modified epoxy resin.
By adopting the technical means, the toughening agent is adopted to modify the epoxy resin, the strength, flexibility, heat resistance and weather resistance of the epoxy resin are enhanced, and the curing agent and the penetrating agent are matched to enhance the performances of water resistance, wear resistance and the like of the epoxy resin, and meanwhile, the curing time of the epoxy resin is shortened, so that the quick curing of the epoxy resin is facilitated.
Preferably, the compound antirust agent is one or more of sulfonate type antirust agent, calcium salt type antirust agent and lauric acid monoethanolamide.
Further preferably, the compound antirust agent is a mixture of a calcium salt type antirust agent and lauric acid monoethanolamide, the calcium salt type antirust agent is oxidized wax calcium salt, and the mass ratio of the oxidized wax calcium salt to lauric acid monoethanolamide is 1: (1-2).
By controlling the mass ratio of oxidized wax calcium salt to lauric acid monoethanolamide, a denser and uniform antirust film layer can be better formed on the chassis, and the antirust film layer can be firmly combined with the chassis by matching with modified epoxy resin and acrylic emulsion.
Preferably, the preparation of the modifying additive comprises the following steps:
S1, placing a porous material in a container, adding soft water, performing ultrasonic treatment to form a suspension, adding a cross-linking agent and a penetrating agent I, performing ultrasonic treatment for 10-24 hours, introducing inert gas to perform evaporative crystallization treatment to obtain crystals, washing, and crushing to obtain a preliminarily treated porous material;
s2, adding a dilute acid solution into the acrylic emulsion to adjust the pH value to be neutral, adding a preliminarily treated porous material and a dispersing agent, carrying out ultrasonic treatment for 2-5h, adding a penetrating agent II and a crosslinking agent, and carrying out ultrasonic treatment for 40-120min to obtain the modified additive.
The porous material is formed into suspension, and then the cross-linking agent and the penetrating agent I are added, so that the penetrating agent and the porous material can be fully combined, and then the inert gas is used for evaporative crystallization, so that the penetrating agent I and oxygen can be prevented from being combined to generate byproducts. And then the pH of the acrylic emulsion is adjusted to avoid side reactions between the porous material and the acrylic emulsion, and the crosslinking agent and the penetrating agent II are added to chemically crosslink the surface of the porous material and the acrylic emulsion, so that the porous material is dispersed and combined in the epoxy resin.
Preferably, the porous material is further subjected to microwave acid treatment, and the porous material is one or more of zeolite, diatomite, activated carbon, porous alumina and coal ash powder.
Further preferably, the porous material is diatomaceous earth, the diatomaceous earth has a particle size D 50 =10-20 um, and when subjected to microwave acid treatment, the diatomaceous earth is subjected to microwave treatment for 20-40min by being placed in a dilute hydrochloric acid solution. The penetrating agent I is ferric nitrate solution, and the penetrating agent II is polyether polyol.
The diatomite is selected as the filler in the antirust agent, ferric nitrate is adsorbed on the pores and the surface of the diatomite, and then the diatomite is washed by ethanol, so that the ferric nitrate which is not firmly adsorbed on the surface of the diatomite is washed off, the heat resistance and the wear resistance of the antirust agent in use can be improved, and the curing and drying time of the antirust agent can be shortened.
Preferably, in the steps S1 and S2, the cross-linking agent is one or more of a silane coupling agent, a titanate coupling agent, diethylenetriamine, tetragas phthalic anhydride, hexahydrophthalic anhydride, triethylenetetramine and dimethylaminopropylamine.
Further preferably, in step S1, the cross-linking agent is a titanate coupling agent, and in step S2, the cross-linking agent is diethylenetriamine.
The application also discloses a preparation method of the vehicle chassis antirust agent, which comprises the following steps:
S3, adding the modified epoxy resin, the acrylic emulsion, the defoaming agent and the antiseptic bactericide into soft water, uniformly stirring, adding the compound antirust agent, and uniformly carrying out ultrasonic treatment to obtain a base material;
S4, uniformly mixing the modified additive, the dispersing agent and the leveling agent to obtain a mixed solution, stirring the base material, adding the mixed solution and the surfactant in the stirring process until the mixed solution is completely added, and then adjusting the pH value to 7-8 to obtain the antirust agent.
Preferably, in the step S4, the surfactant is one or more of sodium dodecyl benzene sulfonate, sodium octyl sulfate and triethanolamine sulfate.
Further preferably, the surfactant is sodium dodecyl benzene sulfonate.
The application adopting the scheme has the following beneficial effects:
1. By adopting the modified epoxy resin as a matrix and matching with the acrylic emulsion, the compound antirust agent and the modified additive, the antirust agent with good performances such as high permeability, high strength, corrosion resistance, dirt resistance and the like can be prepared, when the antirust agent is used on a chassis of a vehicle, the formed armor protection layer can resist corrosion of external acid, alkali, salt and sewage to the chassis, can resist impact, abrasion and the like of sand and stone to the chassis, and can reduce the cleaning area of an original armor protection layer and reduce nursing cost when the chassis is nursed;
2. By adopting diatomite as a filler in the antirust agent and adopting ferric nitrate and polyether polyol as penetrating agents, on one hand, the ferric nitrate can be adsorbed on the pores and the surface of the diatomite, so that the diatomite can improve the heat resistance and the wear resistance of the antirust agent in use and shorten the curing and drying time of the antirust agent; on the other hand, the bonding performance with the chassis and the original coating can be enhanced.
Detailed Description
The following specific examples are presented to illustrate the embodiments of the present invention and to enable those skilled in the art to make and use the present invention as disclosed herein:
example 1 preparation of vehicle Chassis Rust inhibitor
In the embodiment, bisphenol A epoxy vinyl ester resin is adopted, the epoxy value (eq/g) is 0.4-0.55, and the viscosity is 500-2000mpa.s; the viscosity of the acrylic emulsion is 500-800mpa.s; the dispersing agent is an acrylic ester hydrophobic copolymerization dispersing agent; the leveling agent is diacetone alcohol; the defoaming agent is polyether modified polysiloxane defoaming agent; the antiseptic bactericide is octadecyl dimethyl benzyl ammonium chloride; the particle size D 50 = 10-20um of diatomaceous earth.
Preparation of modified epoxy resin
Placing 10 parts by mass of bisphenol A epoxy vinyl ester resin into a container, stirring for 3-5min, adding 1.2 parts by mass of acrylate rubber, 0.4 part by mass of fatty amine and 0.4 part by mass of polyamide, continuously stirring for 10-20min, adding 0.6 part by mass of neutral polytetrahydrofuran glycol, and continuously stirring for 5-10min to obtain modified epoxy resin;
Preparation of modified additives
S1, placing 15 parts by mass of diatomite in a container, adding 35 parts by mass of soft water, performing ultrasonic treatment for 5-10min at the frequency of 200-500W to form a suspension, adding 1.5 parts by mass of titanate coupling agent and 8 parts by mass of ferric nitrate solution, performing ultrasonic treatment for 10-24h at the frequency of 200-300W, introducing nitrogen at the introducing rate of 10-50cm/h, performing evaporative crystallization treatment at the temperature of 60-80 ℃ to obtain crystals, washing with ethanol for 3-5 times, and crushing to 500-600 meshes to obtain a preliminarily treated porous material;
s2, slowly adding 0.5mol/L dilute acid solution into 10 parts by mass of acrylic emulsion to adjust the pH to be 7-8, adding 6.5 parts by mass of preliminarily treated porous materials and 0.7 part by mass of acrylic ester hydrophobic copolymerization dispersing agent, carrying out ultrasonic treatment for 2-5 hours under the condition of 300-500W of power, adding 1 part by mass of neutral polytetrahydrofuran glycol and 0.6 part by mass of diethylenetriamine, and carrying out ultrasonic treatment for 40-120 minutes under the condition of 600-800W of power to obtain a modified additive;
preparation of rust inhibitor
S3, adding 40 parts by mass of modified epoxy resin, 30 parts by mass of propionic acid emulsion, 2 parts by mass of poly-modified polysiloxane defoamer and 1 part by mass of octadecyl dimethyl chloride into 100 parts by mass of soft water, stirring uniformly, and adding a mixed solution of 2.5 parts by mass of oxidized wax calcium salt and 2.5 parts by mass of lauric acid monoethanol amine, wherein the mixed solution is obtained by melting at 60-80 ℃, and ultrasonic homogenization is carried out under the condition of 500-600W of power, so as to obtain a base material;
S4, uniformly mixing 20 parts by mass of modified additive, 1 part by mass of acrylic ester hydrophobic copolymerization type dispersing agent and 1 part by mass of diacetone alcohol to obtain mixed solution, stirring base materials, adding the mixed solution and 0.4 part by mass of sodium dodecyl benzene sulfonate in the stirring process until the mixed solution is completely added, and then adjusting the pH value to 7-8 to obtain the antirust agent.
Example 2 preparation of vehicle Chassis Rust inhibitor
In this example, the same raw materials as in example 1 were used, except that the amounts of the raw materials added in the preparation of the rust inhibitor were different.
Preparation of rust inhibitor
S3, adding 60 parts by mass of modified epoxy resin, 20 parts by mass of acrylic emulsion, 1.4 parts by mass of polyether modified polysiloxane defoamer and 1.5 parts by mass of octadecyl dimethyl benzyl ammonium chloride into 100 parts by mass of soft water, uniformly stirring, adding 2.5 parts by mass of oxidized wax calcium salt and 5 parts by mass of lauric acid monoethanolamide, and uniformly carrying out ultrasonic treatment under the condition of 500-600W of power to obtain a base material;
S4, uniformly mixing 30 parts by mass of modified additive, 1.8 parts by mass of acrylic ester hydrophobic copolymerization type dispersing agent and 1.5 parts by mass of diacetone alcohol to obtain mixed solution, stirring the base material, adding the mixed solution and 0.6 part by mass of sodium dodecyl benzene sulfonate in the stirring process until the mixed solution is completely added, and then adjusting the pH value to 7-8 to obtain the antirust agent.
Example 3 preparation of vehicle Chassis Rust inhibitor three
In this example, the same raw materials as in example 1 were used, except that the amounts of the raw materials added in the preparation of the rust inhibitor were different.
Preparation of rust inhibitor
S3, adding 70 parts by mass of modified epoxy resin, 30 parts by mass of acrylic emulsion, 2 parts by mass of polyether modified polysiloxane defoamer and 2 parts by mass of octadecyl dimethyl benzyl ammonium chloride into 100 parts by mass of soft water, uniformly stirring, adding 2.5 parts by mass of oxidized wax calcium salt and 3.75 parts by mass of lauric acid monoethanolamide, and uniformly carrying out ultrasonic treatment under the condition of power of 500-600W to obtain a base material;
s4, uniformly mixing 40 parts by mass of a modified additive, 2.5 parts by mass of an acrylic ester hydrophobic copolymerization type dispersing agent and 2 parts by mass of diacetone alcohol to obtain a mixed solution, stirring a base material, adding the mixed solution and 0.85 part by mass of sodium dodecyl benzene sulfonate in the stirring process until the mixed solution is completely added, and then adjusting the pH value to 7-8 to obtain the antirust agent.
Example 4 (comparative example 1), preparation of vehicle Chassis Rust inhibitor four
In this example, the same raw materials as in example 1 were used, except that bisphenol A epoxy vinyl ester resin was directly used, and the other preparation methods were the same as in example 1.
Preparation of rust inhibitor
S3, adding 40 parts by mass of bisphenol A epoxy vinyl ester resin, 30 parts by mass of acrylic emulsion, 2 parts by mass of polyether modified polysiloxane defoamer and 1 part by mass of octadecyl dimethyl benzyl ammonium chloride into 100 parts by mass of soft water, uniformly stirring, adding 2.5 parts by mass of oxidized wax calcium salt and 2.5 parts by mass of lauric acid monoethanolamide, and uniformly carrying out ultrasonic treatment under the condition of 500-600W of power to obtain a base material;
S4, uniformly mixing 20 parts by mass of modified additive, 1 part by mass of acrylic ester hydrophobic copolymerization type dispersing agent and 1 part by mass of diacetone alcohol to obtain mixed solution, stirring base materials, adding the mixed solution and 0.4 part by mass of sodium dodecyl benzene sulfonate in the stirring process until the mixed solution is completely added, and then adjusting the pH value to 7-8 to obtain the antirust agent.
Example 5 (comparative example 2), preparation of vehicle Chassis Rust inhibitor five
In this example, the same raw materials as in example 1 were used, except that diatomaceous earth was directly used as an additive, and the rest of the preparation method was the same as in example 1.
Preparation of rust inhibitor
S3, adding 40 parts by mass of modified epoxy resin, 30 parts by mass of acrylic emulsion, 2 parts by mass of polyether modified polysiloxane defoamer and 1 part by mass of octadecyl dimethyl benzyl ammonium chloride into 100 parts by mass of soft water, uniformly stirring, adding 2.5 parts by mass of oxidized wax calcium salt and 2.5 parts by mass of lauric acid monoethanolamide, and uniformly carrying out ultrasonic treatment under the condition of power of 500-600W to obtain a base material;
S4, uniformly mixing 20 parts by mass of diatomite, 1 part by mass of acrylic ester hydrophobic copolymerization type dispersing agent and 1 part by mass of diacetone alcohol to obtain a mixed solution, stirring the base material, adding the mixed solution and 0.4 part by mass of sodium dodecyl benzene sulfonate in the stirring process until the mixed solution is completely added, and then adjusting the pH value to 7-8 to obtain the antirust agent.
Example 6 (comparative example 3), preparation of vehicle Chassis Rust inhibitor six
In this example, the same raw materials as in example 1 were used, except that diatomaceous earth was directly used as an additive, bisphenol a epoxy vinyl ester resin was directly used, and the other preparation methods were the same as in example 1.
Preparation of rust inhibitor
S3, adding 40 parts by mass of bisphenol A epoxy vinyl ester resin, 30 parts by mass of acrylic emulsion, 2 parts by mass of polyether modified polysiloxane defoamer and 1 part by mass of octadecyl dimethyl benzyl ammonium chloride into 100 parts by mass of soft water, uniformly stirring, adding 2.5 parts by mass of oxidized wax calcium salt and 2.5 parts by mass of lauric acid monoethanolamide, and uniformly carrying out ultrasonic treatment under the condition of 500-600W of power to obtain a base material;
S4, uniformly mixing 20 parts by mass of diatomite, 1 part by mass of acrylic ester hydrophobic copolymerization type dispersing agent and 1 part by mass of diacetone alcohol to obtain a mixed solution, stirring the base material, adding the mixed solution and 0.4 part by mass of sodium dodecyl benzene sulfonate in the stirring process until the mixed solution is completely added, and then adjusting the pH value to 7-8 to obtain the antirust agent.
Example 6 (comparative example 3), preparation of vehicle Chassis Rust inhibitor six
In this example, the same starting materials as in example 1 were used, except that no penetrant was added, and the rest of the preparation method was the same as in example 1.
Preparation of modified epoxy resin
Placing 10 parts by mass of bisphenol A epoxy vinyl ester resin into a container, stirring for 3-5min, adding 1.2 parts by mass of acrylate rubber, 0.4 part by mass of fatty amine and 0.4 part by mass of polyamide, and continuing stirring for 10-20min to obtain modified epoxy resin;
Preparation of modified additives
S1, placing 15 parts by mass of diatomite into a container, adding 35 parts by mass of soft water, and performing ultrasonic treatment at a power of 200-500W for 5-10min to form a suspension, thereby obtaining a preliminarily treated porous material;
S2, slowly adding 0.5mol/L dilute acid solution into 10 parts by mass of acrylic emulsion to adjust the pH to be 7-8, adding 6.5 parts by mass of preliminarily treated porous materials and 0.7 parts by mass of acrylic ester hydrophobic copolymerization dispersing agent, carrying out ultrasonic treatment for 2-5 hours under the condition of 300-500W of power, adding 0.6 part by mass of diethylenetriamine, and carrying out ultrasonic treatment for 40-120 minutes under the condition of 600-800W of power to obtain the modified additive.
The rust inhibitors prepared in examples 1 to 6 were tested for appearance, spray drying time, paint film appearance, paint film peel strength, paint film flexibility, gravel impact resistance, abrasion resistance, water/oil/salt spray resistance and re-spray resistance, and were tested according to the corresponding standards, with the test results shown in the following table:
From the above data, in examples 1 to 3, the rust inhibitor prepared by the application has good flexibility, gravel impact resistance, water resistance, wear resistance, oil resistance and salt spray resistance after spraying, can be used for rust prevention spraying of a vehicle chassis, and can be used for surface, and has stronger binding capacity with the vehicle chassis, and meanwhile, has stronger binding capacity with an original coating and can be dried more quickly through testing of peel strength and re-spraying performance.
As can be seen from the comparison of the data in examples 1-3 with the data in comparative examples 1-3, when the epoxy resin is directly used, the drying time of the rust inhibitor after spraying is prolonged and the peel strength is weakened, and the adhesive property of the epoxy resin is strong, but the adhesive property of the epoxy resin can be further enhanced by modifying the epoxy resin; the modified epoxy resin has the advantages that the modified epoxy resin can enhance the gravel impact resistance, the water resistance, the wear resistance, the oil resistance and the salt mist resistance of the epoxy resin after spraying.
When diatomite is directly used as an additive, the real drying time after spraying is obviously prolonged, and the gravel impact resistance, the water resistance, the wear resistance, the oil resistance and the salt spray resistance are all weakened, so that the diatomite is modified, and the real drying speed, the peeling strength, the re-spraying performance and the like of the antirust agent can be synergistically enhanced by matching the modified epoxy resin.
The vehicle chassis antirust agent and the preparation method thereof provided by the invention are described in detail. The description of the specific embodiments is only intended to aid in understanding the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
What needs to be specifically stated is: the specific experimental procedures or conditions are not noted in the examples and may be followed by the operations or conditions of conventional experimental procedures described in the literature in this field. The reagents or apparatus used were conventional reagent products commercially available without the manufacturer's knowledge.
The above examples are provided for better understanding of the present invention, and are not limited to the preferred embodiments, but are not limited to the content and scope of the present invention, and any product which is the same or similar to the present invention obtained by any person who is in the light of the present invention or combines the present invention with other features of the prior art falls within the scope of the present invention.
Claims (7)
1. The antirust agent for the chassis of the vehicle is characterized by comprising the following raw materials in parts by weight: 40-70 parts of modified epoxy resin, 10-30 parts of acrylic emulsion, 5-10 parts of compound antirust agent, 20-40 parts of modified additive, 1-4 parts of dispersing agent, 1-2 parts of leveling agent, 0.5-2 parts of defoaming agent and 1-2 parts of antiseptic bactericide, wherein the modified epoxy resin is prepared by taking epoxy resin as a matrix and modifying the epoxy resin through a toughening agent, a curing agent and a penetrating agent;
The toughening agent is one or more of acrylate rubber, carboxyl nitrile rubber, chlorosulfonated polyethylene, carboxyl liquid nitrile rubber and carboxyl-terminated liquid nitrile rubber;
the penetrating agent is one or more of ferric nitrate, aluminum nitrate and polyether polyol;
the compound antirust agent is one or more of sulfonate type antirust agent, calcium salt type antirust agent and lauric acid monoethanolamide;
The preparation of the modified additive comprises the following steps:
s1, placing a porous material in a container, adding soft water, performing ultrasonic treatment to form a suspension, adding a cross-linking agent and ferric nitrate solution, performing ultrasonic treatment for 10-24 hours, introducing inert gas to perform evaporative crystallization treatment to obtain crystals, washing, and crushing to obtain a preliminarily treated porous material;
s2, adding a dilute acid solution into the acrylic emulsion to adjust the pH value to be neutral, adding a preliminarily treated porous material and a dispersing agent, carrying out ultrasonic treatment for 2-5h, adding polyether polyol and a cross-linking agent, and carrying out ultrasonic treatment for 40-120min to obtain the modified additive.
2. The vehicle chassis rust inhibitor of claim 1, wherein the epoxy resin is one or more of bisphenol a epoxy resin, phenolic resin; the curing agent is one or more of amine curing agent and anhydride curing agent.
3. The vehicle chassis rust inhibitor of claim 1, wherein the preparation method of the modified epoxy resin specifically comprises the following steps: placing the epoxy resin in a container, stirring for 3-5min, adding the toughening agent and the curing agent, continuously stirring for 10-20min, adding the penetrating agent, and continuously stirring for 5-10min to obtain the modified epoxy resin.
4. The vehicle chassis rust inhibitor of claim 1, wherein the porous material is further subjected to microwave acid treatment, the porous material being one or more of zeolite, diatomaceous earth, activated carbon, porous alumina, coal ash.
5. The vehicle chassis rust inhibitor according to claim 1, wherein in the steps S1 and S2, the crosslinking agent is one or more of a silane coupling agent, a titanate coupling agent, diethylenetriamine, tetrapneumophthalic anhydride, hexahydrophthalic anhydride, triethylenetetramine, dimethylaminopropylamine.
6. A method for preparing the rust inhibitor for vehicle chassis according to any one of claims 1 to 5, comprising the steps of:
S3, adding the modified epoxy resin, the acrylic emulsion, the defoaming agent and the antiseptic bactericide into soft water, uniformly stirring, adding the compound antirust agent, and uniformly carrying out ultrasonic treatment to obtain a base material;
S4, uniformly mixing the modified additive, the dispersing agent and the leveling agent to obtain a mixed solution, stirring the base material, adding the mixed solution and the surfactant in the stirring process until the mixed solution is completely added, and then adjusting the pH value to 7-8 to obtain the antirust agent.
7. The method according to claim 6, wherein in the step S4, the surfactant is one or more of sodium dodecylbenzene sulfonate, sodium octylsulfate and triethanolamine sulfate.
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| CN103992720A (en) * | 2014-04-23 | 2014-08-20 | 江苏欣安新材料技术有限公司 | Special coating for acrylic finishes, and making method thereof |
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