CN117343806B - Car washing liquid and preparation method thereof - Google Patents
Car washing liquid and preparation method thereof Download PDFInfo
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- CN117343806B CN117343806B CN202311662934.7A CN202311662934A CN117343806B CN 117343806 B CN117343806 B CN 117343806B CN 202311662934 A CN202311662934 A CN 202311662934A CN 117343806 B CN117343806 B CN 117343806B
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- silane
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- washing liquid
- sio
- car washing
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- 238000005406 washing Methods 0.000 title claims abstract description 89
- 239000007788 liquid Substances 0.000 title claims abstract description 87
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000002105 nanoparticle Substances 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910000077 silane Inorganic materials 0.000 claims abstract description 51
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 50
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 28
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 27
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 19
- 239000002738 chelating agent Substances 0.000 claims abstract description 19
- 239000004094 surface-active agent Substances 0.000 claims abstract description 19
- 150000004756 silanes Chemical class 0.000 claims abstract description 17
- 239000008367 deionised water Substances 0.000 claims abstract description 12
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 12
- 125000001165 hydrophobic group Chemical group 0.000 claims abstract description 12
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940083037 simethicone Drugs 0.000 claims abstract description 8
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 66
- 238000003756 stirring Methods 0.000 claims description 31
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- 239000006185 dispersion Substances 0.000 claims description 8
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical group CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 8
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical group CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 claims description 7
- 229940073507 cocamidopropyl betaine Drugs 0.000 claims description 7
- POPACFLNWGUDSR-UHFFFAOYSA-N methoxy(trimethyl)silane Chemical compound CO[Si](C)(C)C POPACFLNWGUDSR-UHFFFAOYSA-N 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 7
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 6
- 239000000176 sodium gluconate Substances 0.000 claims description 6
- 229940005574 sodium gluconate Drugs 0.000 claims description 6
- 235000012207 sodium gluconate Nutrition 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 4
- 239000011499 joint compound Substances 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- KQAHMVLQCSALSX-UHFFFAOYSA-N decyl(trimethoxy)silane Chemical compound CCCCCCCCCC[Si](OC)(OC)OC KQAHMVLQCSALSX-UHFFFAOYSA-N 0.000 claims description 2
- 229960001484 edetic acid Drugs 0.000 claims description 2
- JEWCZPTVOYXPGG-UHFFFAOYSA-N ethenyl-ethoxy-dimethylsilane Chemical compound CCO[Si](C)(C)C=C JEWCZPTVOYXPGG-UHFFFAOYSA-N 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- BAXHQTUUOKMMGV-UHFFFAOYSA-N methoxy-dimethyl-octylsilane Chemical compound CCCCCCCC[Si](C)(C)OC BAXHQTUUOKMMGV-UHFFFAOYSA-N 0.000 claims description 2
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- 229960001790 sodium citrate Drugs 0.000 claims description 2
- 239000001433 sodium tartrate Substances 0.000 claims description 2
- 229960002167 sodium tartrate Drugs 0.000 claims description 2
- 235000011004 sodium tartrates Nutrition 0.000 claims description 2
- NMEPHPOFYLLFTK-UHFFFAOYSA-N trimethoxy(octyl)silane Chemical compound CCCCCCCC[Si](OC)(OC)OC NMEPHPOFYLLFTK-UHFFFAOYSA-N 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 abstract description 21
- 238000004140 cleaning Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 15
- 240000002853 Nelumbo nucifera Species 0.000 abstract description 11
- 235000006508 Nelumbo nucifera Nutrition 0.000 abstract description 11
- 235000006510 Nelumbo pentapetala Nutrition 0.000 abstract description 11
- 230000004048 modification Effects 0.000 abstract description 10
- 238000012986 modification Methods 0.000 abstract description 10
- 239000000428 dust Substances 0.000 abstract description 6
- 230000003373 anti-fouling effect Effects 0.000 abstract description 4
- 230000000474 nursing effect Effects 0.000 abstract description 2
- 239000003981 vehicle Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 9
- 238000011282 treatment Methods 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 230000005661 hydrophobic surface Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000003917 TEM image Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 239000002502 liposome Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002888 zwitterionic surfactant Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/90—Betaines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/162—Organic compounds containing Si
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/201—Monohydric alcohols linear
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Detergent Compositions (AREA)
Abstract
The invention provides a car washing liquid and a preparation method thereof, and relates to the technical field of automobile cleaning and nursing. The car washing liquid comprises the following components in parts by weight: hydrophobically modified SiO of silanes 2 0.5-3 parts of nano particles, 10-50 parts of ethanol, 5-10 parts of hydroxy acrylic resin, 2-5 parts of silane coupling agent, 25-40 parts of surfactant, 1-10 parts of chelating agent, 5-10 parts of simethicone and 80-150 parts of deionized water. Hydrophobically modified SiO with addition of silane 2 Nanoparticles having hydrophobic groups on the surface of the nanoparticles, the hydrophobic groups tending to move away from water molecules, such that water hydrophobically modifies the SiO at the silane 2 The surfaces of the nano particles form spheres and roll off rapidly, so that dust and stains are taken away; siO with silane hydrophobic modification is formed on the surface of the vehicle body by referring to the lotus leaf effect 2 Nanoparticle-distributed organic film of hydroxy acrylic resin, hydrophobically modified SiO with silane 2 The nano particles can improve the roughness of the film from the microscopic level, thereby realizing the hydrophobic effect and further improving the anti-fouling and self-cleaning properties of the vehicle.
Description
Technical Field
The invention relates to the technical field of automobile cleaning and nursing, in particular to a car washing liquid and a preparation method thereof.
Background
The vehicle is exposed to air, and dust and particulate matter in the air may adhere to the vehicle surface. These particulates react with oxygen and moisture in the air to form an oxide layer that gradually tarnishs the vehicle surface. In addition, rainwater or air conditioner water vapor can be adsorbed on the metal surface of the vehicle, and dirt is formed after drying. These soils not only affect the appearance and gloss of the vehicle, but also can cause corrosion and damage to the components and circuitry of the vehicle. In addition, bacteria carried on people easily stay on the vehicle after contacting the vehicle, and are not easily removed, so that the vehicle becomes dirty. Therefore, periodic car washing is critical to maintaining the appearance and value of the vehicle.
The lotus leaf effect is a natural phenomenon, namely the surface of the lotus leaf has superhydrophobicity, and water drops can form water drops on the surface of the lotus leaf to quickly slide off, so that the water drops are not easy to stay. The hydrophobicity of the lotus leaf effect is due to the rough microstructure and hydrophobic surface wax on the lotus leaf surface, which form the water drops on the lotus leaf surface into spheres and can prevent pollution by sewage, and the characteristics enable the lotus leaf to be self-cleaned and keep the clean appearance. The car washing liquid can be used for referring to the effect, and the car washing liquid is enabled to have superhydrophobicity by adding the corresponding surfactant and the additive, so that dirt and mud stains are removed more easily in the cleaning process, water drops can slide off the car body rapidly, moisture cannot be remained, and the cleaning efficiency and quality are improved. In addition, the car washing liquid can form a protective film which can protect the car paint from being corroded and damaged by the external environment, so that the service life of the car paint is prolonged.
The Chinese patent document with the application publication number of CN107881024A discloses an automobile windshield cleaner and a preparation method thereof, but the formula of the cleaner contains a large amount of fluorine-containing surfactant (10-15 percent) which is easy to pollute the environment; the Chinese patent document with the application publication number of CN109055057A discloses hydrophobic anti-pollution self-cleaning car washing powder and car washing liquid, when the car washing powder is used, the car washing powder needs to be dissolved in water, if the car washing powder is not sufficiently stirred and uniformly dispersed, the film forming property of the car washing powder attached to a car body is poor, and the visibility of a windshield and a car window can be influenced.
Disclosure of Invention
In view of the above, the invention provides a car washing liquid, which can clean and remove dirt on the surface of a car, and form a hydrophobic protective film on the surface of the car body to form a lotus leaf effect, thereby improving the dirt resistance and self-cleaning property of the car.
The technical scheme of the invention is realized as follows: the invention provides a car washing liquid which comprises the following components in parts by weight:
hydrophobically modified SiO of silanes 2 0.5-3 parts of nano particles, 10-50 parts of ethanol, 5-10 parts of hydroxy acrylic resin, 2-5 parts of silane coupling agent, 25-40 parts of surfactant, 1-10 parts of chelating agent, 5-10 parts of simethicone and 80-150 parts of deionized water.
Hydrophobically modified SiO of silanes 2 Nanoparticles having hydrophobic functional groups on their surfaces can be used to prepare water-repellent coatings. When the coating is applied to the surface of a material, a layer of dense waterproof film is formed, and the waterproof film has superhydrophobicity, so that water drops are highly spherical on the surface and roll off rapidly, and moisture penetration is effectively prevented. At the same time, siO due to hydrophobic modification of the silane 2 The nano-scale size and the good surface effect of the nano-particles can improve the physical and chemical properties of the coating and improve the waterproof performance and durability of the coating. Furthermore, silane hydrophobically modified SiO 2 The nanoparticle waterproof film also has transparency, does not change the color and appearance of the coating surface, and is suitable for waterproof treatment of various materials.
The hydroxy acrylic resin has excellent film forming performance, can form a layer of transparent film on the surface of a vehicle by methods such as painting, spraying and the like, and can repair micro scratches of the vehicle paint, thereby providing good protection effect. Compared with SiO directly hydrophobically modified by silane 2 The nano particles form a film on the surface of the automobile, and the hydroxyl acrylic resin is added to play a role in supporting and connecting, so that the SiO modified by silane in a hydrophobic manner is improved 2 The uniformity of nanoparticle distribution and the compactness of adhesion make it difficult to fall off.
The silane coupling agent is a substance with two functional groups with different properties, and the molecular structural formula is Y-R-Si (OR) 3 Wherein Y is an organofunctional group and SiOR is a siloxy group. The siloxy groups are inorganically philic groups which are readily chemically reactive with the inorganic surface, and the organofunctional groups are organophilic groups which are chemically reactive with synthetic resins or other polymers or which form hydrogen bonds which dissolve therein. Thus, couplingThe agent is called a "molecular bridge", and when the silane coupling agent is interposed between the inorganic and organic interfaces, an organic matrix-silane coupling agent-inorganic matrix bond layer can be formed, thereby improving the interface effect between the inorganic and organic substances
When the car washing liquid is used, the car washing liquid is uniformly sprayed on the surface of a car body, the hydroxy acrylic resin forms a layer of organic protective film on the surface of the car body, and the silane hydrophobically modified SiO 2 The nano particles are distributed on the organic film of the hydroxy acrylic resin through the molecular bridge function of the silane coupling agent, so that the hydrophobic self-cleaning performance of the film is improved.
The car washing liquid of this application makes the automobile body obtain hydrophobic surface through two kinds of effects: the hydrophobic groups on the surface of the nano particles and the roughness of the microstructure of the film on the surface of the car body are enhanced. In one aspect, a silane hydrophobically modified SiO 2 The surface of the nano particle has hydrophobic groups, the hydrophobic groups tend to be away from water molecules, the contact area between the water molecules and water is reduced, and the repulsive interaction leads the water to hydrophobically modify the SiO on the silane 2 The surfaces of the nano particles form spheres and roll off rapidly, so that dust and stains are taken away; on the other hand, silane hydrophobically modified SiO 2 The nano particles are distributed on the hydroxyl acrylic resin organic film, so that the roughness of the film can be improved from a microscopic level, namely, nano-level concave-convex structures are formed on the surface of the film, and the concave-convex structures can enable liquid to be unable to fully contact the surface of an object, so that a hydrophobic effect is realized.
The silane hydrophobically modified SiO 2 The preparation method of the nano-particles comprises the following steps: siO is made of 2 The nanoparticles are exposed to a solution containing silane, silane and SiO 2 The surface of the nanoparticle reacts to introduce hydrophobic groups on the particle surface.
After hydrophobic modification treatment of silane, siO 2 Nanoparticles will generally exhibit repellency to water, that is to say they have hydrophobic properties. This hydrophobic nature allows the dispersibility of these particles in water to be improved, prevents them from agglomerating, and enhances their stability in a wet environment.
In the above technical schemeOn the basis, preferably, the silane hydrophobically modified SiO 2 The nano particles are made of SiO 2 The nano-particles and the silane are mixed and heated for reaction to prepare the nano-particles and the silane.
On the basis of the above technical scheme, preferably, the silane is one or more of n-octyl trimethoxysilane, n-decyl trimethoxysilane, ethoxy dimethylvinyl silane, methoxy trimethylsilane and methoxy dimethyloctyl silane.
Silane and SiO 2 The reaction mechanism of the nano particle surface is mainly silicon hydroxyl and SiO in silane 2 The hydroxyl groups on the surfaces of the nano particles undergo condensation reaction to form covalent bonds, so that silane molecules are fixed on SiO 2 Nanoparticle surfaces. At the same time, the hydrophobic group in the silane molecule is also exposed during the modification treatment, thereby imparting SiO 2 Hydrophobic properties of nanoparticles.
Based on the above technical scheme, preferably, the silane hydrophobically modified SiO 2 The particle size of the nano particles is 15-50nm.
Hydrophobically modified SiO of silanes 2 The smaller the particle size of the nano particles, the larger the specific surface area, the higher the surface energy, and the better the hydrophobic effect can be provided. However, too small a particle size of the nanoparticles may cause agglomeration phenomenon, affecting the dispersibility and stability thereof, and thus affecting the quality of the film formation.
On the basis of the above technical scheme, preferably, the number average molecular weight of the hydroxy acrylic resin is 3000-4000.
The molecular weight of the hydroxy acrylic resin directly affects its properties and applications. The resin with lower molecular weight has better fluidity, and can be conveniently processed and formed into various shapes; while higher molecular weight resins have better hardness and chemical resistance.
On the basis of the technical scheme, the silane coupling agent is preferably tetramethoxy silane and/or tetraethoxy silane.
Tetramethoxysilane and tetraethoxysilane are compatible with a wide variety of inorganic and organic materials and can be used to treat a wide variety of different types of materials, which makes them exhibit good versatility in treating different types of composite materials; moreover, both compounds have better weatherability and corrosion resistance, which can maintain stable performance under severe environmental conditions, which makes them exhibit good durability in outdoor applications, such as building exterior walls, automobile housings, etc.; in addition, tetramethoxysilane and tetraethoxysilane are less toxic, are also prone to degradation, and have less negative impact on the environment and human health than other organic compounds.
On the basis of the technical scheme, preferably, the surfactant is cocamidopropyl betaine and/or fatty alcohol polyoxyethylene ether.
The cocamidopropyl betaine is a zwitterionic surfactant, has excellent stability under acidic and alkaline conditions, respectively shows cationic and anionic properties, is often used together with anionic, cationic and nonionic surfactants, has small irritation, is easy to dissolve in water, is stable to acid and alkali, has multiple foams and strong detergency, has excellent thickening property, softness, bactericidal property, antistatic property and hard water resistance, and has good foaming effect.
The fatty alcohol-polyoxyethylene ether is a nonionic surfactant, has excellent detergency, hard water resistance, mildness, antistatic performance and biodegradability, can effectively remove stains and dirt on the surfaces of a vehicle body and metals, does not irritate skin, is environment-friendly, and meets the requirement of environmental protection sustainable development. The fatty alcohol-polyoxyethylene ether is added into the car washing liquid, so that the washing effect can be obviously improved, the surface of the car body is cleaner and brighter, and meanwhile, the car paint can be protected from being damaged.
On the basis of the technical scheme, preferably, the chelating agent is one or more of sodium gluconate, ethylenediamine tetraacetic acid, sodium tartrate and sodium citrate.
The chelating agent is capable of binding metal ions to form a stable complex, thereby helping to remove stains and greasy stains from the vehicle body surface. In addition, the chelating agent can improve the cleaning effect of the car washing liquid, so that the car washing liquid has more cleaning power and decontamination capability.
The invention also provides a preparation method of the car washing liquid, which comprises the following steps:
s1: hydrophobically modified SiO of silanes 2 Adding the nano particles and ethanol into an ultrasonic homogenizer, performing ultrasonic dispersion at normal temperature, adding hydroxy acrylic resin, and continuing ultrasonic dispersion to obtain a dispersion;
s2: according to the weight parts, adding a silane coupling agent, a surfactant, a chelating agent, dimethyl silicone oil and deionized water into a stirring kettle, stirring and uniformly mixing, wherein the stirring speed is not lower than 200r/min;
s3: maintaining the stirring speed of the step S2, slowly dripping the dispersion liquid obtained in the step S1 into the stirring kettle of the step S2, continuing stirring after dripping, and uniformly stirring and mixing to obtain the car washing liquid.
An ultrasonic homogenizer is a device that uses ultrasonic technology to homogenize nanoparticles, emulsions, suspensions, colloids, liposomes, and other samples by cavitation of ultrasonic waves. The main working principle of the ultrasonic homogenizer is that when ultrasonic waves propagate in liquid, a special sound pressure is generated, when the sound pressure reaches a certain intensity, gas in the liquid can form bubbles, the bubbles can expand rapidly along with the sound waves and then close rapidly, an instantaneous high-pressure space is formed, and the high pressure can destroy agglomeration of nano particles, so that the nano particles can be dispersed.
The invention also provides a use method of the car washing liquid, which comprises the following steps:
s1: firstly, washing a vehicle body by clear water to remove sand and stone or mud;
s2: stirring and diluting the car washing liquid and water according to the mass ratio of 1:60-120, uniformly spraying the car washing liquid and the water on the surface of a car body, standing for 3-5min, and uniformly wiping the car body by using a sponge or wet towel;
s3: the residual foam was rinsed off with clean water.
The car washing liquid has the following beneficial effects in the prior art:
(1) Hydrophobically modified SiO of silanes by addition of silane modification treatments to car wash formulations 2 Nanoparticles of hydrophobically modified SiO of the silane 2 The surface of the nano particle has hydrophobic groups, the hydrophobic groups tend to be away from water molecules, the contact area between the water molecules and water is reduced, and the repulsive interaction leads the water to hydrophobically modify the SiO on the silane 2 The surfaces of the nano particles form spheres and roll off rapidly, so that dust and stains are taken away;
(2) By referring to the lotus leaf effect, the SiO with silane hydrophobic modification is formed on the surface of the car body by using the car washing liquid 2 Nanoparticle-distributed organic film of hydroxy acrylic resin, hydrophobically modified SiO with silane 2 The nano particles can improve the roughness of the film from a microscopic level, namely, nano-level concave-convex structures are formed on the surface of the film, and the concave-convex structures can enable liquid to be unable to fully contact the surface of an object, so that a hydrophobic effect is realized, and further, the anti-fouling and self-cleaning properties of a vehicle are improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an SEM image of the surface of an automobile sheet after treatment with a car wash according to one embodiment of the present invention;
fig. 2 is a TEM image of the surface of an automotive panel after treatment with a car wash according to the first embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Example 1
The embodiment provides a car washing liquid which comprises the following components in parts by weight:
hydrophobically modified SiO of silanes 2 1 part of nano particles, 30 parts of ethanol, 8 parts of hydroxy acrylic resin, 3 parts of silane coupling agent, 30 parts of surfactant, 5 parts of chelating agent, 8 parts of simethicone and 120 parts of deionized water.
The silane hydrophobically modified SiO 2 The nano particles are SiO treated by hydrophobic modification of methoxytrimethylsilane 2 The specific preparation method of the nanoparticle comprises the following steps:
s1, siO is treated 2 Nanoparticles (1.5 g) and 100mL of toluene were added to a three-necked round bottom flask equipped with a mechanical stirrer and reflux condenser and heated with continuous stirring at 50 ℃.
S2. 7.5mmol of methoxytrimethylsilane are added to the mixture in step S1, and the mixture is then placed in an ultrasonic bath and kept under ultrasound at 50℃for 4 hours.
S3, after cooling to room temperature, centrifuging the obtained product (5 minutes, 10000 rpm), washing with ethanol three times, and drying at 60 ℃ for 12 hours to obtain the methoxytrimethylsilane hydrophobically modified SiO 2 And (3) nanoparticles.
The silane hydrophobically modified SiO 2 The particle size of the nanoparticle was 20nm.
The number average molecular weight of the hydroxy acrylic resin is 3000-4000.
The silane coupling agent is tetramethoxy silane.
The surfactant is cocamidopropyl betaine.
The chelating agent is sodium gluconate.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps:
s1: hydrophobically modified SiO of silanes 2 Adding the nano particles and ethanol into an ultrasonic homogenizer, performing ultrasonic dispersion at normal temperature, adding hydroxy acrylic resin, and continuing ultrasonic separationDispersing to obtain dispersion liquid;
s2: according to the weight parts, adding a silane coupling agent, a surfactant, a chelating agent, dimethyl silicone oil and deionized water into a stirring kettle, stirring and mixing uniformly at normal temperature, wherein the stirring speed is not lower than 200r/min;
s3: maintaining the stirring speed of the step S2, slowly dripping the dispersion liquid obtained in the step S1 into the stirring kettle of the step S2, continuing stirring after dripping, and uniformly stirring and mixing to obtain the car washing liquid.
The embodiment provides a use method of a car washing liquid, which comprises the following steps:
s1: firstly, washing a vehicle body by clear water to remove sand and stone or mud;
s2: stirring and diluting the car washing liquid and water according to the mass ratio of 1:90, uniformly spraying the car washing liquid and the water on the surface of a car body, standing for 3-5min, and uniformly wiping the car body by using a sponge or wet towel;
s3: the residual foam was rinsed off with clean water.
Example two
The embodiment provides a car washing liquid which comprises the following components in parts by weight:
hydrophobically modified SiO of silanes 2 0.5 part of nano particles, 10 parts of ethanol, 5 parts of hydroxy acrylic resin, 2 parts of silane coupling agent, 25 parts of surfactant, 1 part of chelating agent, 5 parts of simethicone and 80 parts of deionized water.
The silane hydrophobically modified SiO 2 The nano particles are SiO treated by hydrophobic modification of methoxytrimethylsilane 2 The specific preparation method of the nanoparticle is the same as that of the first embodiment.
The silane hydrophobically modified SiO 2 The particle size of the nanoparticle was 15nm.
The number average molecular weight of the hydroxy acrylic resin is 3000-4000.
The silane coupling agent is tetramethoxy silane.
The surfactant is cocamidopropyl betaine.
The chelating agent is sodium gluconate.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps: as in the first embodiment.
The embodiment provides a use method of a car washing liquid, and the specific operation steps are the same as those of the first embodiment, and the difference is that:
s2: and (3) stirring and diluting the car washing liquid and water according to the mass ratio of 1:60, uniformly spraying the car washing liquid and the water on the surface of the car body, standing for 3-5min, and uniformly wiping the car body by using a sponge or wet towel.
Example III
The embodiment provides a car washing liquid which comprises the following components in parts by weight:
hydrophobically modified SiO of silanes 2 3 parts of nano particles, 50 parts of ethanol, 10 parts of hydroxy acrylic resin, 5 parts of silane coupling agent, 40 parts of surfactant, 10 parts of chelating agent, 10 parts of simethicone and 150 parts of deionized water.
The silane hydrophobically modified SiO 2 The nano particles are SiO treated by hydrophobic modification of methoxytrimethylsilane 2 The specific preparation method of the nanoparticle is the same as that of the first embodiment.
The silane hydrophobically modified SiO 2 The particle size of the nanoparticle was 50nm.
The number average molecular weight of the hydroxy acrylic resin is 3000-4000.
The silane coupling agent is tetramethoxy silane.
The surfactant is cocamidopropyl betaine.
The chelating agent is sodium gluconate.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps: as in the first embodiment.
The embodiment provides a use method of a car washing liquid, and the specific operation steps are the same as those of the first embodiment, and the difference is that:
s2: and (3) stirring and diluting the car washing liquid and water according to the mass ratio of 1:120, uniformly spraying the car washing liquid and the water on the surface of the car body, standing for 3-5min, and uniformly wiping the car body by using a sponge or wet towel.
Example IV
The embodiment provides a car washing liquid, and the specific components are the same as those in the first embodiment, and the difference is that:
hydrophobically modified SiO of silanes 2 0 part of nano particles.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps: the first embodiment is different from the second embodiment in that:
s1: according to the weight parts, the hydroxy acrylic resin and ethanol are added into an ultrasonic homogenizer, and after ultrasonic dispersion at normal temperature, a dispersion liquid is obtained.
The embodiment provides a use method of a car washing liquid, and specific operation steps are the same as those of the first embodiment.
Example five
The embodiment provides a car washing liquid, and the specific components are the same as those in the first embodiment, and the difference is that:
hydrophobically modified SiO of silanes 2 5 parts of nano particles.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps: as in the first embodiment.
The embodiment provides a use method of a car washing liquid, and specific operation steps are the same as those of the first embodiment.
Example six
The embodiment provides a car washing liquid, and the specific components are the same as those in the first embodiment, and the difference is that:
0 part of hydroxy acrylic resin.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps: the first embodiment is different from the second embodiment in that:
s1: hydrophobically modified SiO of silanes 2 Adding the nano particles and ethanol into an ultrasonic homogenizer, and performing ultrasonic dispersion at normal temperature to obtain a dispersion liquid.
The embodiment provides a use method of a car washing liquid, and specific operation steps are the same as those of the first embodiment.
Example seven
The embodiment provides a car washing liquid, and the specific components are the same as those in the first embodiment, and the difference is that:
12 parts of hydroxy acrylic resin.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps: as in the first embodiment.
The embodiment provides a use method of a car washing liquid, and specific operation steps are the same as those of the first embodiment.
Example eight
The embodiment provides a car washing liquid, and the specific components are the same as those in the first embodiment, and the difference is that:
the silane hydrophobically modified SiO 2 The particle size of the nanoparticle was 10nm.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps: as in the first embodiment.
The embodiment provides a use method of a car washing liquid, and specific operation steps are the same as those of the first embodiment.
Example nine
The embodiment provides a car washing liquid, and the specific components are the same as those in the first embodiment, and the difference is that:
the silane hydrophobically modified SiO 2 The particle size of the nanoparticle was 60nm.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps: as in the first embodiment.
The embodiment provides a use method of a car washing liquid, and specific operation steps are the same as those of the first embodiment.
Comparative example one
The comparative example provides a car washing liquid which comprises the following components in parts by weight:
3 parts of silane coupling agent, 30 parts of surfactant, 5 parts of chelating agent, 8 parts of simethicone and 120 parts of deionized water.
The silane coupling agent is tetramethoxy silane.
The surfactant is cocamidopropyl betaine.
The chelating agent is sodium gluconate.
The embodiment provides a preparation method of a car washing liquid, which comprises the following steps:
according to the weight portions, adding the silane coupling agent, the surfactant, the chelating agent, the simethicone and the deionized water into a stirring kettle, stirring at the speed of not less than 200r/min, and uniformly stirring and mixing at normal temperature to obtain the car washing liquid.
The embodiment provides a use method of a car washing liquid, which comprises the following steps:
s1: firstly, washing a vehicle body by clear water to remove sand and stone or mud;
s2: stirring and diluting the car washing liquid and water according to the mass ratio of 1:90, uniformly spraying the car washing liquid and the water on the surface of a car body, and uniformly wiping the car body by using a sponge or wet towel;
s3: the residual foam was rinsed off with clean water.
The method for evaluating the liquid of the car washing liquid comprises the following steps:
cleaning performance: after washing the automobile with the automobile washing liquid of the first to ninth examples and the first comparative example, scratches, glossiness and surface stains of the automobile paint surface are observed;
hydrophobic properties: preparing a plane plate which is the same as the material of the surface of an automobile, treating the plate by using the car washing liquid in the first embodiment to the ninth embodiment and the first comparative embodiment, dripping 5uL deionized water on the surface of the plate, measuring the Contact Angle (CA) between the surface of the automobile and the plate, respectively measuring different parts of the plate for 5 times, and then taking an average value;
the contact angle is an important index for measuring the hydrophobicity of the solid surface, the larger the contact angle is, the worse the wettability of water drops on the solid surface is, the less the solid surface is wetted easily, and the better the hydrophobicity of the solid surface is, because the automobile surface is irregular, the water contact angle of the automobile surface is not as simple as the water contact angle of plane glass or other regular surfaces measured in a laboratory, and the plane plate material which is the same as the material of the automobile surface is used for replacing the water contact angle, so that the measurement is convenient.
Self-cleaning anti-fouling performance: after the car washes of the examples one to nine and the comparative example one are used, dust is blown to the surface of the car, then water drops are sprayed on, the dust removal rate of the car is tested, and the self-cleaning performance of the car is evaluated.
Evaluation results:
analysis of results: the car washing liquid has good cleaning effect and high glossiness, can fill micro scratches on the surface of the car body, and can form a hydrophobic film with lotus leaf effect on the surface of the car body, so that the car washing liquid has good self-cleaning and anti-fouling performances.
Furthermore, the performance of the car washing liquid disclosed by the application is similar to that of SiO hydrophobically modified by silane 2 Weight part ratio of nano particles and SiO modified by silane hydrophobicity 2 The particle size of the nanoparticles and the weight part ratio of the hydroxy acrylic resin are related. Increasing silane hydrophobically modified SiO 2 The weight parts of the nano particles can cause excessive particle accumulation on the film, and influence the quality and transparency of the film; reduction of silane hydrophobically modified SiO 2 The weight parts of the nano particles lead to insufficient hydrophobic groups on the surface and influence the hydrophobicity; hydrophobically modified SiO of silanes 2 The particle size of the nano particles is too small, so that the particles on the film are agglomerated, the dispersibility and the stability of the film are affected, and the film forming quality is affected; hydrophobically modified SiO of silanes 2 The particle size of the nano particles is too large, so that the specific surface area of the nano particles is reduced, the exposure of hydrophobic groups is influenced, and the adhesive force of the nano particles on the surface of the film is reduced, so that the distribution uniformity is influenced; too small or too large a weight part of the hydroxy acrylic resin affects the film forming quality.
Characterization analysis:
a planar plate material having the same material as the surface of the automobile was prepared, and after the plate material was treated with the car wash of example one, the microstructure of the plate surface was characterized by a Scanning Electron Microscope (SEM) and a Transmission Electron Microscope (TEM), and the results were shown in fig. 1 and 2.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The car washing liquid is characterized in that: the car washing liquid comprises the following components in parts by weight:
hydrophobically modified SiO of silanes 2 0.5-3 parts of nano particles, 10-50 parts of ethanol, 5-10 parts of hydroxy acrylic resin and 2-5 parts of silane coupling agent25-40 parts of surfactant, 1-10 parts of chelating agent, 5-10 parts of simethicone and 80-150 parts of deionized water;
the silane hydrophobically modified SiO 2 The nano particles are made of SiO 2 The nano-particles and silane are mixed and heated for reaction, and the silane hydrophobically modified SiO is prepared 2 The preparation method of the nano-particles comprises the following steps: siO is made of 2 The nanoparticles are exposed to a solution containing silane, silane and SiO 2 The surface of the nano-particles reacts, so that hydrophobic groups are introduced to the surfaces of the particles;
the silane hydrophobically modified SiO 2 The particle size of the nano particles is 15-50nm;
the preparation method of the car washing liquid comprises the following steps:
s1: hydrophobically modified SiO of silanes 2 Adding the nano particles and ethanol into an ultrasonic homogenizer, performing ultrasonic dispersion at normal temperature, adding hydroxy acrylic resin, and continuing ultrasonic dispersion to obtain a dispersion;
s2: according to the weight parts, adding a silane coupling agent, a surfactant, a chelating agent, dimethyl silicone oil and deionized water into a stirring kettle, stirring and uniformly mixing, wherein the stirring speed is not lower than 200r/min;
s3: maintaining the stirring speed of the step S2, slowly dripping the dispersion liquid obtained in the step S1 into the stirring kettle of the step S2, continuing stirring after dripping, and uniformly stirring and mixing to obtain the car washing liquid.
2. The car wash according to claim 1, wherein: the silane is one or more of n-octyl trimethoxy silane, n-decyl trimethoxy silane, ethoxy dimethyl vinyl silane, methoxy trimethyl silane and methoxy dimethyl octyl silane.
3. The car wash according to claim 1, wherein: the number average molecular weight of the hydroxy acrylic resin is 3000-4000.
4. The car wash according to claim 1, wherein: the silane coupling agent is tetramethoxy silane and/or tetraethoxy silane.
5. The car wash according to claim 1, wherein: the surfactant is cocamidopropyl betaine and/or fatty alcohol polyoxyethylene ether.
6. The car wash according to claim 1, wherein: the chelating agent is one or more of sodium gluconate, ethylenediamine tetraacetic acid, sodium tartrate and sodium citrate.
7. A method of using the car wash according to any one of claims 1-6, characterized in that: the method comprises the following steps:
s1: firstly, washing a vehicle body by clear water to remove sand and stone or mud;
s2: stirring and diluting the car washing liquid and water according to the mass ratio of 1:60-120, uniformly spraying the car washing liquid and the water on the surface of a car body, standing for 3-5min, and uniformly wiping the car body by using a sponge or wet towel;
s3: the residual foam was rinsed off with clean water.
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