CN106947611A - Low temperature car washing liquid, low temperature carwash liquid and preparation method thereof and car-washing method - Google Patents

Abstract

The invention relates to a low-temperature car washing liquid, which comprises 96-98 parts by weight of deionized water, 0.2-0.4 parts by weight of silicone oil, 0.5-0.75 parts by weight of wax, 0.4-0.7 parts by weight of surfactant, The organic solvent of 1.0-1.5 weight part, the long-chain unsaturated acid of 0.2-0.3 weight part, the polyisobutylene succinimide of 0.01-0.25 weight part, the triethanolamine of 0.02-0.06 weight part, the triethanolamine of 0.01-0.05 weight part Diethyl phthalate. The low-temperature car washing liquid of the present invention is mainly composed of water, organic solvent, silicone oil, wax, surfactant and other additives, and the water content reaches more than 96%. The low-temperature car wash liquid uses environmentally friendly materials, high-efficiency decontamination at low temperature, and zero scratches on the car paint surface.

Description

Low-temperature car washing liquid, preparation method of low-temperature car washing liquid, and car washing method

technical field

The invention relates to a low-temperature car washing liquid.

Background technique

At present, the conventional car washing process is as follows: firstly, the car body is wetted or initially rinsed to remove a large amount of dirt, and then the prepared car wash liquid is evenly sprayed and/or wiped on the car body surface, and then the foam and sewage on the car body surface are washed with water. Finally, dry the body with a towel, chamois, etc. In this process, in order to remove the residual car wash liquid on the body, a large amount of water needs to be used for flushing, which is an extreme waste of water resources.

For this reason, people have carried out exploration on car washing operation method and car washing liquid kind. For example, CN1704293A discloses a water-saving car washing method, which uses 5 steps, mainly repeatedly wiping to achieve the purpose of water saving and cleaning. CN105505642A discloses another method for water-saving car washing, which achieves the purpose of water saving through the use of car wash liquid with specific components. However, the particles attached to the surface of the car body are easily scratched on the surface of the car paint under the forceful and repeated wiping of a rag or a large sponge.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a low-temperature car wash liquid, which includes 96-98 parts by weight of deionized water, 0.2-0.4 parts by weight of silicone oil, 0.5-0.75 parts by weight of wax, 0.4- 0.7 parts by weight of surfactants, 1.0-1.5 parts by weight of organic solvents, 0.2-0.3 parts by weight of long-chain unsaturated acids, 0.01-0.25 parts by weight of polyisobutylene succinimide, 0.02-0.06 parts by weight of three Ethanolamine, 0.01-0.05 parts by weight of diethyl phthalate.

The silicone oil is selected from methyl silicone oil with a viscosity of 2000-3000c, methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy One or more of silicone oil, methyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, and hydroxyl hydrogen silicone oil.

The silicone oil can be 10000-15000cst silicone oil, especially 10000-15000cst methyl silicone oil, and the mass ratio of 10000-15000cst silicone oil to surfactant is 1:40-100.

The wax is selected from wood wax, bayberry wax, candelilla wax, Japan essence wax, palm wax, rice bran wax, jojoba oil, castor wax, beeswax, insect wax, wool wax, spermaceti, montan wax, paraffin wax one or more of them.

The surfactant is a polyoxyethylene ether surfactant or a polyethylene glycol ester surfactant.

The organic solvent is selected from organic solvents with a boiling point of 140-250 degrees Celsius.

The long-chain unsaturated acid is selected from one of erucic acid, squalic acid, myristoleic acid, 2-hexadecenoic acid, palmitoleic acid, oleic acid, linolenic acid, 9-eicosenoic acid or Several kinds.

The low-temperature car washing liquid also includes 0.01-0.05 parts by weight of an antistatic agent.

The low-temperature car washing liquid also includes 0.01-0.5 parts by weight of pigment and essence.

A preparation method of low-temperature car washing liquid, comprising the following steps:

Add 96-98 parts by weight of deionized water into the first container, stir, wait until the temperature rises to 40-60 ° C, add 0.4-0.7 parts by weight of surfactant, stir until completely dissolved; raise the temperature to 80- At 90°C, add 0.02-0.06 parts by weight of triethanolamine and stir evenly to obtain the first mixed solution;

Add 1.0-1.5 parts by weight of organic solvent into the second container and stir. When the temperature rises to 40-45°C, add 0.5-0.75 parts by weight of wax and stir until completely dissolved; add 0.01-0.25 parts by weight of poly Isobutylene succinimide is stirred until it is completely dissolved; 0.2-0.3 parts by weight of long-chain unsaturated acid is added and stirred until it is completely dissolved; 0.2-0.4 parts by weight of silicone oil is added and stirred evenly to obtain a second mixed solution;

Pour the second mixed solution in the second container into the first container containing the first mixed solution, add 0.01-0.05 parts by weight of antistatic agent, stir at 80-90°C for 15 minutes, add 0.01-0.05 parts by weight diethyl phthalate and 0.01-0.5 parts by weight of pigment and essence are stirred evenly to obtain a low-temperature car washing liquid.

A car washing method, comprising the steps of:

Spray the low-temperature car wash liquid onto the surface of the car paint and let it stand for 10-100 seconds;

Use a towel to wipe off the dirt on the surface of the car paint;

Wipe up remaining liquid with a towel.

The low-temperature car washing liquid of the present invention is mainly composed of water, organic solvent, silicone oil, wax, surfactant and other additives, and the water content reaches more than 96%. The low-temperature car wash liquid uses environmentally friendly materials, high-efficiency decontamination at low temperature, and zero scratches on the car paint surface.

Due to the complex types of dirt on the surface of automobiles, surfactants with excellent cleaning performance are required. However, the washing performance of the low-temperature car wash liquid drops seriously at low temperatures. According to Bancroft's law, surfactants form W/O emulsions at high temperatures, and O/W emulsions at low temperatures. As the temperature drops, the oil-soluble surfactants turn to the water phase through the oil-water interface, thereby reducing Detergent performance of surfactants.

The organosilicon oil of the invention can not only improve the brightness of the car surface after washing, but also play a synergistic effect with the surfactant to improve the washing performance of the low-temperature car washing liquid at low temperature. The basic principle is that silicone oil and wax compounds can promote the formation of "lamellar phase" of surfactants and inhibit the performance degradation of surfactants at low temperatures.

In addition, the surfactants, organic solvents and waxes used in the present invention are environmentally friendly and degradable materials.

detailed description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the definitions in this specification shall prevail.

The low-temperature car washing liquid of the present invention comprises 96-98 parts by weight of deionized water, 0.2-0.4 parts by weight of silicone oil, 0.5-0.75 parts by weight of wax, 0.4-0.7 parts by weight of surfactant, 1.0-1.5 parts by weight of organic Solvent, 0.2-0.3 parts by weight of long-chain unsaturated acid, 0.01-0.25 parts by weight of polyisobutylene succinimide, 0.02-0.06 parts by weight of triethanolamine, and 0.01-0.05 parts by weight of diethyl phthalate.

As a preferred technical solution, the silicone oil is selected from methyl silicone oil, methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen-containing silicone oil, methyl phenyl silicone oil, methyl chlorobenzene One or more of base silicone oil, methyl ethoxy silicone oil, methyl trifluoropropyl silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, and hydroxyl hydrogen silicone oil. The choice of viscosity is in order to control the molecular weight of silicone oil, too high molecular weight causes silicone oil to be difficult to form bright surface on the surface of car paint, the silicone oil of the present invention can choose the silicone oil of 10000-15000cst, especially preferably the methyl silicone oil of 10000-15000cst, The mass ratio of 10000-15000cst silicone oil to surfactant is 1:40-100. Although the use of high-viscosity methyl silicone oil is not conducive to the brightness of the car paint surface, a small amount of 10000-15000cst silicone oil can improve the surface active agent. Dirt cleaning effect at low temperatures. The possible reason is that the high viscosity of methyl silicone oil can promote the formation of lamellar phase of surfactant.

As a preferred technical scheme, the wax is selected from wood wax, bayberry wax, candelilla wax, Japanese essence wax, palm wax, rice bran wax, jojoba oil, castor wax, beeswax, insect wax, wool wax , spermaceti, montan wax, paraffin in one or more. The wax of the present invention is preferably liquid paraffin.

As a preferred technical solution, the surfactant is a polyoxyethylene ether surfactant or a polyethylene glycol ester surfactant.

Polyoxyethylene ether surfactants can be selected from polyoxyethylene octyl ether, polyoxyethylene nonyl ether, polyoxyethylene decyl ether, polyoxyethylene propylene decyl ether, polyoxyethylene lauryl ether, polyoxyethylene Propylene Lauryl Ether, Polyoxyethylene Tridecyl Ether, Polyoxyethylene Propylene Tridecyl Ether, Polyoxyethylene Myristyl Ether, Polyoxyethylene Cetyl Ether, Polyoxyethylene Stearyl Ether ether, polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether and polyoxyethylene styrenated phenyl ether.

As a preferred technical solution, the organic solvent is selected from organic solvents with a boiling point of 140-250 degrees Celsius. Organic solvents with high boiling points can achieve better scratch repair. As a preferred technical scheme, the long-chain unsaturated acid is selected from erucic acid, squalic acid, myristic acid, 2-hexadecenoic acid, palmitoleic acid, oleic acid, linolenic acid, 9-di One or several types of decenoic acid.

The polyisobutylene succinimide of the invention can reduce the scratches of the automobile paint surface during the scrubbing process. The low-temperature car washing liquid of the present invention adopts the wiping method to remove dirt owing to not adopting a large amount of water to clean, but in the wiping process, the crystal in the dirt can scratch automobile, finds by a large amount of experiments, polyisobutylene succinyl disulfide of the present invention Imines and long-chain unsaturated acids can reduce and repair scratches during wiping. The possible reason is that polyisobutylene succinimide has a large number of hydrogen bonds, and long-chain unsaturated acids can form with crystal surfaces and scratches. strong adsorption. The two types of adsorption complement each other. The hydrogen bond adsorption of large molecules and the ion adsorption of small molecules make full use of the space and surface chemical properties of the crystal surface and scratched parts.

As a preferred technical solution, the low-temperature car washing liquid also includes 0.01-0.05 parts by weight of an antistatic agent.

As a preferred technical solution, the low-temperature car washing liquid also includes 0.01-0.5 parts by weight of pigments and essences.

A preparation method of low-temperature car washing liquid, comprising the following steps:

Add 96-98 parts by weight of deionized water into the first container, stir, wait until the temperature rises to 40-60 ° C, add 0.4-0.7 parts by weight of surfactant, stir until completely dissolved; raise the temperature to 80- At 90°C, add 0.02-0.06 parts by weight of triethanolamine and stir evenly to obtain the first mixed solution;

Add 1.0-1.5 parts by weight of organic solvent into the second container and stir. When the temperature rises to 40-45°C, add 0.5-0.75 parts by weight of wax and stir until completely dissolved; add 0.01-0.25 parts by weight of poly Isobutylene succinimide is stirred until it is completely dissolved; 0.2-0.3 parts by weight of long-chain unsaturated acid is added and stirred until it is completely dissolved; 0.2-0.4 parts by weight of silicone oil is added and stirred evenly to obtain a second mixed solution;

Pour the second mixed solution in the second container into the first container containing the first mixed solution, add 0.01-0.05 parts by weight of antistatic agent, stir at 80-90°C for 15 minutes, add 0.01-0.05 parts by weight diethyl phthalate and 0.01-0.5 parts by weight of pigment and essence are stirred evenly to obtain a low-temperature car washing liquid.

A car washing method, comprising the steps of:

Spray the low-temperature car wash liquid onto the surface of the car paint and let it stand for 10-100 seconds;

Use a towel to wipe off the dirt on the surface of the car paint;

Wipe up remaining liquid with a towel.

The low-temperature car washing liquid of the present invention is mainly composed of water, organic solvent, silicone oil, wax, surfactant and other additives, and the water content reaches more than 96%. The low-temperature car wash liquid uses environmentally friendly materials, high-efficiency decontamination at low temperature, and zero scratches on the car paint surface.

Due to the complex types of dirt on the surface of automobiles, surfactants with excellent cleaning performance are required. However, the washing performance of the low-temperature car wash liquid drops seriously at low temperatures. According to Bancroft's law, surfactants form W/O emulsions at high temperatures, and O/W emulsions at low temperatures. As the temperature drops, the oil-soluble surfactants turn to the water phase through the oil-water interface, thereby reducing Detergent performance of surfactants.

The organosilicon oil of the invention can not only improve the brightness of the car surface after washing, but also play a synergistic effect with the surfactant to improve the washing performance of the low-temperature car washing liquid at low temperature. The basic principle is that silicone oil and wax compounds can promote the formation of "lamellar phase" of surfactants and inhibit the performance degradation of surfactants at low temperatures.

In addition, the surfactants, organic solvents and waxes used in the present invention are environmentally friendly and degradable materials.

Hereinafter, the present invention is described in more detail through examples, but it should be understood that these examples are only illustrative and not restrictive. If not stated otherwise, all starting materials used are commercially available.

The present invention will be described in detail below with reference to several examples.

Example 1

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2000cst methyl silicone oil, 0.6 parts by weight of liquid paraffin, 0.4 parts by weight of isomeric tridecyl alcohol polyoxyethylene ether, 1.5 parts by weight of 200# mineral spirits, 0.3 parts by weight of myristoleic acid, 0.25 parts by weight of polyisobutylene succinimide (T151A), 0.06 parts by weight of triethanolamine, and 0.05 parts by weight of diethyl phthalate.

Preparation method of low temperature car wash liquid:

Add deionized water into the first container, stir, wait until the temperature rises to 40-60°C, add surfactant, stir until completely dissolved; raise the temperature to 80-90°C, add triethanolamine, stir evenly to obtain the first a mixture;

Add organic solvent to the second container and stir. When the temperature rises to 40-45°C, add wax and stir until completely dissolved; add polyisobutylene succinimide and stir until completely dissolved; add long-chain unsaturated acid , stir until completely dissolved; add silicone oil, stir evenly to obtain the second mixed liquid;

Pour the second mixed solution in the second container into the first container containing the first mixed solution, add an antistatic agent, stir at 80-90°C for 15 minutes, add diethyl phthalate, pigment, essence, and stir Evenly, get low-temperature car wash liquid.

Example 2

Low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2500cst methyl silicone oil, 0.5 parts by weight of wax, 0.6 parts by weight of nonylphenol polyoxyethylene ether, and 1.5 parts by weight of 200# solvent oil, 0.3 parts by weight of oleic acid, 0.04 parts by weight of polyisobutylene succinimide, 0.06 parts by weight of triethanolamine, and 0.05 parts by weight of diethyl phthalate.

Preparation method of low temperature car wash liquid:

Add deionized water into the first container, stir, wait until the temperature rises to 40-60°C, add surfactant, stir until completely dissolved; raise the temperature to 80-90°C, add triethanolamine, stir evenly to obtain the first a mixture;

Add organic solvent to the second container and stir. When the temperature rises to 40-45°C, add wax and stir until completely dissolved; add polyisobutylene succinimide (T151A) and stir until completely dissolved; add long chain Unsaturated acid, stir until completely dissolved; add silicone oil, stir evenly to obtain the second mixed solution;

Pour the second mixed solution in the second container into the first container containing the first mixed solution, add an antistatic agent, stir at 80-90°C for 15 minutes, add diethyl phthalate, pigment, essence, and stir Evenly, get low-temperature car wash liquid.

Example 3

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2500cst methyl silicone oil, 0.75 parts by weight of wax, 0.4 parts by weight of nonylphenol polyoxyethylene ether, and 1.5 parts by weight of 200# solvent oil, 0.2 parts by weight of palmitoleic acid, 0.09 parts by weight of polyisobutylene succinimide, 0.06 parts by weight of triethanolamine, and 0.05 parts by weight of diethyl phthalate.

Preparation method of low temperature car wash liquid:

Add deionized water into the first container, stir, wait until the temperature rises to 40-60°C, add surfactant, stir until completely dissolved; raise the temperature to 80-90°C, add triethanolamine, stir evenly to obtain the first a mixture;

Add organic solvent to the second container and stir. When the temperature rises to 40-45°C, add wax and stir until completely dissolved; add polyisobutylene succinimide (T151A) and stir until completely dissolved; add long chain Unsaturated acid, stir until completely dissolved; add silicone oil, stir evenly to obtain the second mixed solution;

Pour the second mixed solution in the second container into the first container containing the first mixed solution, add an antistatic agent, stir at 80-90°C for 15 minutes, add diethyl phthalate, pigment, essence, and stir Evenly, get low-temperature car wash liquid.

Comparative example 1

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2000cst methyl silicone oil, 0.6 parts by weight of liquid paraffin, 0.4 parts by weight of isomeric tridecyl alcohol polyoxyethylene ether, 1.5 parts by weight of 200# mineral spirits, 0.25 parts by weight of polyisobutylene succinimide (T151A), 0.06 parts by weight of triethanolamine, and 0.05 parts by weight of diethyl phthalate.

Preparation method of low temperature car wash liquid:

Add deionized water into the first container, stir, wait until the temperature rises to 40-60°C, add surfactant, stir until completely dissolved; raise the temperature to 80-90°C, add triethanolamine, stir evenly to obtain the first a mixture;

Add organic solvent to the second container and stir. When the temperature rises to 40-45°C, add wax and stir until completely dissolved; add polyisobutylene succinimide and stir until completely dissolved; add long-chain unsaturated acid , stir until completely dissolved; add silicone oil, stir evenly to obtain the second mixed liquid;

Pour the second mixed solution in the second container into the first container containing the first mixed solution, add an antistatic agent, stir at 80-90°C for 15 minutes, add diethyl phthalate, pigment, essence, and stir Evenly, get low-temperature car wash liquid.

Comparative example 2

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2000cst methyl silicone oil, 0.6 parts by weight of liquid paraffin, 0.4 parts by weight of isomeric tridecyl alcohol polyoxyethylene ether, 1.5 parts by weight of 200# mineral spirits, 0.3 parts by weight of myristoleic acid, 0.06 parts by weight of triethanolamine, and 0.05 parts by weight of diethyl phthalate.

Preparation method of low temperature car wash liquid:

Add deionized water into the first container, stir, wait until the temperature rises to 40-60°C, add surfactant, stir until completely dissolved; raise the temperature to 80-90°C, add triethanolamine, stir evenly to obtain the first a mixture;

Add organic solvent to the second container and stir. When the temperature rises to 40-45°C, add wax and stir until completely dissolved; add polyisobutylene succinimide and stir until completely dissolved; add long-chain unsaturated acid , stir until completely dissolved; add silicone oil, stir evenly to obtain the second mixed solution;

Pour the second mixed solution in the second container into the first container containing the first mixed solution, add an antistatic agent, stir at 80-90°C for 15 minutes, add diethyl phthalate, pigment, essence, and stir Evenly, get low-temperature car wash liquid.

Comparative example 3

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2000cst methyl silicone oil, 0.6 parts by weight of liquid paraffin, 0.4 parts by weight of isomeric tridecyl alcohol polyoxyethylene ether, 1.5 parts by weight of 200# mineral spirits, 0.3 parts by weight of myristic acid, 0.25 parts by weight of sorbitan tristearate, 0.06 parts by weight of triethanolamine, and 0.05 parts by weight of diethyl phthalate.

Preparation method of low temperature car wash liquid:

Add deionized water into the first container, stir, wait until the temperature rises to 40-60°C, add surfactant, stir until completely dissolved; raise the temperature to 80-90°C, add triethanolamine, stir evenly to obtain the first a mixture;

Add organic solvent to the second container and stir. When the temperature rises to 40-45°C, add wax and stir until completely dissolved; add polyisobutylene succinimide and stir until completely dissolved; add long-chain unsaturated acid , stir until completely dissolved; add silicone oil, stir evenly to obtain the second mixed solution;

Pour the second mixed solution in the second container into the first container containing the first mixed solution, add an antistatic agent, stir at 80-90°C for 15 minutes, add diethyl phthalate, pigment, essence, and stir Evenly, get low-temperature car wash liquid.

Comparative example 4

Same as the examples, polyoxyethylene sorbitan hexastearate (HLB value 2.6) which is close to the HLB value of T151A was used.

Place 50 metal panels (330mm×100mm) coated with car paint without scratches on the surface for 14 days outside in a small amount of dust. At room temperature, use the aforementioned low-temperature car wash liquid to spray on the surface of the metal plate, until the surface of the metal plate is basically covered with low-temperature car wash liquid, use an ordinary towel to wipe off the dirt, and then use a clean towel to remove the remaining liquid on the surface, and polish the surface of 30 metal plates. The brightness is divided into 25 groups. The brightness of the metal plates in each group is basically the same and the number of scratches on the surface is basically the same. Observe the surface brightness and the number of scratches after cleaning. Each low-temperature car wash liquid cleans 15 metal plates and compares them Get 5 values, respectively, after cleaning, it is marked as +6 to -6 from obviously brighter to significantly worse in brightness, and marked as +6 to -6 from the number of scratches that are significantly reduced to the number of scratches that is significantly increased. Use a paper towel to wipe and clean After the surface was observed for dirt, the stain was marked as 6-0 to no stain.

It can be seen that the use of polyisobutylene succinimide and long chain unsaturated acid can significantly reduce scratches.

Example 4

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2500cst methyl silicone oil, 0.014 parts by weight of 12000cst methyl silicone oil, 0.75 parts by weight of wax, 0.2 parts by weight of nonylphenol polyoxygen Vinyl ether, 0.2 parts by weight of polyoxyethylene sorbitan monooleate, 0.3 isooctyl alcohol polyoxyethylene ether monophosphate, 1.5 parts by weight of 200# solvent oil, 0.3 parts by weight of oleic acid, 0.04 parts by weight polyisobutylene succinimide, 0.06 parts by weight of triethanolamine, and 0.05 parts by weight of diethyl phthalate.

Preparation method of low-temperature car wash liquid: same as above, 12000cst of methyl silicone oil and 2500cst of methyl silicone oil are added together.

50 pieces of metal panels (330mm×100mm) sprayed with car paint without scratches were placed outdoors with a small amount of dust for 14 days. Outdoors at -5 degrees Celsius, use the aforementioned low-temperature car wash liquid to spray on the surface of the metal plate until the surface of the metal plate is basically covered with low-temperature car wash liquid, wipe with an ordinary towel to remove dirt, and then use a clean towel to remove residual liquid on the surface, and use it after cleaning Wipe the cleaned surface with a paper towel to observe the dirt, and the stain is marked as 6-0 to no stain. The resulting stain average rating score was 4.1.

Example 5

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2500cst methyl silicone oil, 0.08 parts by weight of 12000cst methyl silicone oil, 0.75 parts by weight of wax, 0.2 parts by weight of nonylphenol polyoxygen Vinyl ether, 0.2 parts by weight of polyoxyethylene sorbitan monooleate, 0.3 isooctyl alcohol polyoxyethylene ether monophosphate, 1.5 parts by weight of 200# mineral spirits, 0.3 parts by weight of oleic acid, 0.04 parts by weight polyisobutylene succinimide, 0.06 parts by weight of triethanolamine, and 0.05 parts by weight of diethyl phthalate.

Preparation method of low-temperature car wash liquid: same as above, 12000cst of methyl silicone oil and 2500cst of methyl silicone oil are added together.

50 pieces of metal panels (330mm×100mm) sprayed with car paint without scratches were placed outdoors with a small amount of dust for 14 days. Outdoors at -5 degrees Celsius, use the aforementioned low-temperature car wash liquid to spray on the surface of the metal plate until the surface of the metal plate is basically covered with low-temperature car wash liquid, wipe with an ordinary towel to remove dirt, and then use a clean towel to remove residual liquid on the surface, and use it after cleaning Wipe the cleaned surface with a paper towel to observe the dirt, and the stain is marked as 6-0 to no stain. The resulting stain average rating score was 2.1.

Example 6

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 12000cst methyl silicone oil, 0.75 parts by weight of wax, 0.2 parts by weight of nonylphenol polyoxyethylene ether, 0.2 parts by weight of polyoxyethylene Sorbitan monooleate, 0.3 isooctyl alcohol polyoxyethylene ether monophosphate, 1.5 parts by weight of 200# solvent naphtha, 0.3 parts by weight of oleic acid, polyisobutylene succinimide of 0.04 parts by weight, 0.06 parts by weight Parts by weight of triethanolamine, 0.05 parts by weight of diethyl phthalate.

Preparation method of low-temperature car wash liquid: same as above, 12000cst of methyl silicone oil and 2500cst of methyl silicone oil are added together.

50 pieces of metal panels (330mm×100mm) sprayed with car paint without scratches were placed outdoors with a small amount of dust for 14 days. Outdoors at -5 degrees Celsius, use the aforementioned low-temperature car wash liquid to spray on the surface of the metal plate until the surface of the metal plate is basically covered with low-temperature car wash liquid, wipe with an ordinary towel to remove dirt, and then use a clean towel to remove residual liquid on the surface, and use it after cleaning Wipe the cleaned surface with a paper towel to observe the dirt, and the stain is marked as 6-0 to no stain. The resulting stain average rating score was 0.6.

Example 7

The low-temperature car wash liquid components include: 97 parts by weight of deionized water, 0.2 parts by weight of 2500cst methyl silicone oil, 0.75 parts by weight of wax, 0.2 parts by weight of nonylphenol polyoxyethylene ether, 0.2 parts by weight of polyoxyethylene Sorbitan monooleate, 0.3 isooctyl alcohol polyoxyethylene ether monophosphate, 1.5 parts by weight of 200# solvent naphtha, 0.3 parts by weight of oleic acid, polyisobutylene succinimide of 0.04 parts by weight, 0.06 parts by weight Parts by weight of triethanolamine, 0.05 parts by weight of diethyl phthalate.

Preparation method of low-temperature car wash liquid: same as above, 12000cst of methyl silicone oil and 2500cst of methyl silicone oil are added together.

50 pieces of metal panels (330mm×100mm) sprayed with car paint without scratches were placed outdoors with a small amount of dust for 14 days. Outdoors at -5 degrees Celsius, use the aforementioned low-temperature car wash liquid to spray on the surface of the metal plate until the surface of the metal plate is basically covered with low-temperature car wash liquid, wipe with an ordinary towel to remove dirt, and then use a clean towel to remove residual liquid on the surface, and use it after cleaning Wipe the cleaned surface with a paper towel to observe the dirt, and the stain is marked as 6-0 to no stain. The resulting stain average rating score was 1.9.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. All equivalent changes and modifications made according to the contents of the present invention are covered within the patent scope of the present invention.

Claims (10)

1. a kind of low temperature car washing liquid, it is characterised in that the low temperature car washing liquid includes the deionized water of 96-98 parts by weight, 0.2- The silicone oil of 0.4 parts by weight, the wax of 0.5-0.75 parts by weight, the surfactant of 0.4-0.7 parts by weight, 1.0-1.5 parts by weight Organic solvent, the long-chain unsaturated acids of 0.2-0.3 parts by weight, the polyisobutene succinimide of 0.01-0.25 parts by weight, The triethanolamine of 0.02-0.06 parts by weight, the ethyl phthalate of 0.01-0.05 parts by weight.

2. low temperature car washing liquid according to claim 1, it is characterised in that the silicone oil is selected from viscosity 2000-3000c first Base silicone oil, methyl-silicone oil, ethyl silicon oil, phenyl silicone oil, Methyl Hydrogen Polysiloxane Fluid, methyl phenyl silicone oil, methylchlorophenyl silicone oil, first Base oxethyl silicone oil, methyl trifluoro propyl silicone oil, methyl vinyl silicon oil, methylhydroxy silicone oil, ethyl containing hydrogen silicone oil, hydroxyl contain One or more in hydrogen silicone oil.

3. low temperature car washing liquid according to claim 1, it is characterised in that the low temperature car washing liquid also includes 10000- 15000cst viscous silicone fluid, the mass ratio of the viscous silicone fluid and surfactant is 1：40-100.

4. low temperature car washing liquid according to claim 1, it is characterised in that the surfactant is APEO surface Activating agent or polyethylene glycol ester surfactant.

5. low temperature car washing liquid according to claim 1, it is characterised in that it is 140-250 that the organic solvent, which is selected from boiling point, Degree Celsius organic solvent.

6. low temperature car washing liquid according to claim 1, it is characterised in that the long-chain unsaturated acids is selected from erucic acid, oil of dogfish One or more in acid, nutmeg oleic acid, 2- gaidic acids, palmitoleic acid, oleic acid, leukotrienes, 9- eicosenoic acids.

7. low temperature car washing liquid according to claim 1, it is characterised in that the low temperature car washing liquid also includes 0.01-0.05 The antistatic additive of parts by weight.

8. low temperature car washing liquid according to claim 1, it is characterised in that the low temperature car washing liquid also includes 0.01-0.5 weights Measure the pigment, essence of part.

9. a kind of preparation method of low temperature car washing liquid, it is characterised in that comprise the following steps：

The deionized water of 96-98 parts by weight is added in the first container, stirring treats that temperature is increased to 40-60 DEG C, adds 0.4- The surfactant of 0.7 parts by weight, stirring is to being completely dissolved；Temperature is warming up to 80-90 DEG C, 0.02-0.06 parts by weight are added Triethanolamine, stir, obtain the first mixed liquor；

The organic solvent of 1.0-1.5 parts by weight is added in second container, stirring when temperature is increased to 40-45 DEG C, is added The wax of 0.5-0.75 parts by weight, stirring is to being completely dissolved；The polyisobutene succinimide of 0.01-0.25 parts by weight is added, is stirred Mix to being completely dissolved；The long-chain unsaturated acids of 0.2-0.3 parts by weight is added, stirring is to being completely dissolved；Add 0.2-0.4 parts by weight Silicone oil, be uniformly mixing to obtain the second mixed liquor；

The second mixed liquor in second container is poured into the first container equipped with the first mixed liquor, 0.01-0.05 weight is added The antistatic additive of part, stirs 15min at 80-90 DEG C, adds the ethyl phthalate and 0.01-0.5 weights of 0.01-0.05 parts by weight The pigment, essence of part are measured, stirs, obtains low temperature car washing liquid.

10. a kind of car-washing method, it is characterised in that comprise the following steps：

Low temperature car washing liquid described in any one claim in claim 1-8 is sprayed to surface of vehicle paint, 10-100 is stood Second；

The dirt for removing surface of vehicle paint is wiped using towel；

Remaining liquid is wiped using towel.