Neutral high-efficiency heavy oil stain cleaning formula suitable for motor vehicles and application of neutral high-efficiency heavy oil stain cleaning formula

Abstract

The invention discloses a neutral high-efficiency heavy oil stain cleaning formula suitable for motor vehicles and application of the neutral high-efficiency heavy oil stain cleaning formula. According to the method, the obvious advantages are shown through the multi-dimensional synergistic effect. According to the formula, an innovative composite system of natural and synthetic materials is adopted, amphiphilic micelles constructed by alkyl glycoside and tea saponin are taken as a core, and a mesoporous carrier intelligent controlled release technology is combined, so that targeted permeation and wrapping stripping of heavy oil stains can be realized in a neutral environment. The synergistic effect of the nanometer photocatalytic material and the compound enzyme system breaks through the decomposition bottleneck of a traditional alkaline cleaning agent on stubborn oil stains, and meanwhile the bionic fluid design remarkably improves the cleaning dynamic efficiency through the turbulence effect generated by a micro-groove structure. The raw material selection gives consideration to bio-based source and functional modification, the introduction of the biological corrosion inhibitor and the chelating agent effectively avoids the corrosion risk of metal parts, and the technical characteristics of both cleaning and maintenance are formed.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor vehicle oil stain cleaners, and specifically relates to a neutral and highly efficient heavy oil stain cleaning formula applicable to motor vehicles and its application. Background Art

[0002] A neutral and highly efficient heavy oil stain cleaner is a high-performance cleaning product designed specifically for motor vehicles. It adopts a unique neutral formula and can effectively remove heavy oil stains on components such as engines, gearboxes, and wheels. This cleaner has strong emulsifying, dispersing, and suspending capabilities, can quickly decompose stubborn oil stains, does not damage metal and rubber components, and at the same time protects the paint surface gloss. Its high efficiency is reflected in less usage, fast decontamination, and convenient use, and it is applicable to various models of motor vehicles. In addition, the neutral property ensures that the product is harmless to human skin and environmentally friendly. It is an indispensable cleaning product in motor vehicle maintenance and provides a time-saving and labor-saving vehicle maintenance solution for vehicle owners.

[0003] However, the traditional formula relies on a single surfactant, resulting in a relatively high critical micelle concentration and low oil stain encapsulation efficiency. Moreover, the lack of an intelligent response mechanism causes ineffective consumption of active ingredients. At the same time, the inactivation of enzyme preparations and the aggregation of photocatalytic materials significantly restrict the cleaning efficiency in low-temperature and low-light environments, making it difficult to meet the deep cleaning requirements of the complex structure of the engine compartment. Summary of the Invention

[0004] The purpose of the present invention is to provide a neutral and highly efficient heavy oil stain cleaning formula applicable to motor vehicles and its application in order to solve the above-mentioned problems.

[0005] The technical solution adopted by the present invention is as follows: A neutral and highly efficient heavy oil stain cleaning formula applicable to motor vehicles and its application, the neutral and highly efficient heavy oil stain cleaning formula includes:

[0006] 35 parts by weight of alkyl polyglycoside / tea saponin composite surfactant, 18 parts by weight of mesoporous silica nanospheres, 10 parts by weight of graphene oxide nanosheets, 8 parts by weight of lipase-protease composite microcapsules, 12 parts by weight of isomeric tridecyl alcohol polyoxyethylene ether, 6 parts by weight of ethylene glycol monobutyl ether penetrant, 9 parts by weight of citrus terpene extract, 5 parts by weight of chitosan quaternary ammonium salt modifier, 7 parts by weight of xanthan gum-sodium alginate composite thickener, 4 parts by weight of bio-based corrosion inhibitor, 3 parts by weight of sodium citrate chelating agent, 0.5 part by weight of pH regulator (citric acid), 100 parts by weight of deionized water;

[0007] Among them, the mesoporous silica nanospheres are synthesized by a hydrothermal method and have a controllable pore size structure of 5-10 nm; the lipase-protease composite microcapsules are prepared by a microfluidic chip technology with an encapsulation rate of more than 98%; the graphene oxide nanosheets are prepared by an ultrasonic-microwave synergistic exfoliation method with the number of layers controlled within 3-5 layers.

[0008] In a preferred embodiment, an application of a neutral and highly efficient heavy oil stain cleaning formulation for motor vehicles, the application includes using the neutral and highly efficient heavy oil stain cleaning formulation to prepare a highly efficient heavy oil stain cleaner.

[0009] In a preferred embodiment, the method for preparing the highly efficient heavy oil stain cleaner includes the following steps:

[0010] S1: Add alkyl polyglycoside and tea saponin to deionized water in proportion, stir at 800 rpm for 2 hours at 65 °C to form a self-assembled composite micelle dispersion;

[0011] S2: Mix the mesoporous silica nanospheres synthesized by the hydrothermal method with poly(acrylic acid-N-isopropylacrylamide), react at 50 °C for 4 hours under nitrogen protection, and obtain a functionalized carrier with a surface-grafted pH-responsive polymer after centrifugation and washing;

[0012] S3: Disperse graphene oxide nanosheets in ethylene glycol, perform ultrasonic-microwave synergistic treatment for 30 minutes, then add a zinc oxide quantum dot suspension, and complete the heterostructure composite by magnetic stirring combined with ultraviolet light irradiation;

[0013] S4: Interface cross-link lipase and protease solutions with chitosan quaternary ammonium salt solution through microfluidic chip technology to form composite enzyme microcapsules with uniform particle size, collect and freeze-dry for later use;

[0014] S5: Add the products of steps S1 to S4, isomeric tridecyl polyoxyethylene ether, ethylene glycol monobutyl ether, and citrus terpene extract to the reaction kettle, add xanthan gum-sodium alginate composite thickener and bio-based corrosion inhibitor in stages, control the system temperature at 40 °C, and continuously homogenize for 1.5 hours;

[0015] S6: Transfer the mixed solution to a high-pressure homogenizer, circulate and process 3 times at a pressure of 120 MPa, and at the same time form a directional fluid with a sharkskin micro-groove structure through a 3D printing nozzle, and adjust the pH to the neutral range;

[0016] S7: After adding sodium citrate chelating agent, filter through a 0.22 μm membrane, dispense into pressure-resistant containers, and store in the dark at 15 - 25 °C environment to complete the final preparation encapsulation.

[0017] In a preferred embodiment, in step S1, alkyl polyglycoside and tea saponin are accurately weighed according to a mass ratio and then added into deionized water. The temperature of the system is maintained constant at 65 °C, and a double-layer constant-temperature stirring device is used to continuously stir at a rate of 800 revolutions per minute for 2 hours. During this process, the natural amphiphilic molecules of tea saponin and the sugar group structure of alkyl polyglycoside spontaneously assemble through hydrogen bonds and hydrophobic interactions to form a bilayer micelle structure with a particle size distribution in the range of 10 - 50 nanometers. After the stirring is completed, the stability of the micelle dispersion is detected by a dynamic light scattering instrument to ensure that the absolute value of the Zeta potential is greater than 30 mV to maintain the stability of the system.

[0018] In a preferred embodiment, in step S2, the mesoporous silica nanospheres prepared by the hydrothermal synthesis method are vacuum dried and then mixed with poly(acrylic acid - N - isopropylacrylamide) copolymer in anhydrous ethanol according to a mass ratio of 1:0.8. The reaction system is heated to 50 °C under the protection of a nitrogen atmosphere and maintained for 4 hours by a magnetic stirrer to complete the grafting reaction. After the product is treated by a centrifuge at 12,000 revolutions per minute for 15 minutes, it is washed three times with ethanol and deionized water in sequence, and finally a functionalized carrier with a surface grafting rate of 85% is obtained. The thermosensitive property of the copolymer endows the carrier with an intelligent response release ability in an oil - contaminated environment during this process.

[0019] In a preferred embodiment, in step S3, graphene oxide nanosheets are uniformly dispersed in an ethylene glycol solvent and placed in an ultrasonic - microwave synergistic reactor. The ultrasonic frequency is set at 40 kHz and the microwave power is set at 500 W, and the dual action is carried out for 30 minutes. Subsequently, the pre - prepared zinc oxide quantum dot suspension is added dropwise, and under the condition of magnetic stirring, it is irradiated with a 365 nm wavelength ultraviolet light source for 2 hours. This process enables the quantum dots to be anchored on the surface of the graphene sheets through chemical bonding to form a heterostructure complex with a photocatalytic synergistic effect. Transmission electron microscopy characterization shows that the quantum dot distribution density reaches 1200 - 1500 per square micrometer.

[0020] In a preferred embodiment, in step S4, a microfluidic chip device is used to prepare composite enzyme microcapsules. A mixture of lipase and protease is used as the inner phase, and a chitosan quaternary ammonium salt solution is used as the outer phase. The flow rate ratio of the two phases is controlled at 1:5 by a precision injection pump. After the interfacial cross - linking reaction is completed in the microchannels of the chip, the generated microcapsule emulsion is collected and subjected to freeze - drying treatment. The pre - freezing temperature is set at - 40 °C, the cold trap temperature is set at - 80 °C, and the vacuum degree is 10 Pa, and drying is carried out for 24 hours to obtain a solid microcapsule preparation with a particle size distribution of 50 - 80 micrometers and an enzyme activity retention rate exceeding 95%.

[0021] In a preferred embodiment, in step S5, the intermediate obtained in the first four steps and auxiliaries such as isomeric tridecyl alcohol polyoxyethylene ether are added to a jacketed reactor in sequence. The xanthan gum-sodium alginate composite thickener is added in three gradients at intervals of 15 minutes each to ensure uniform dispersion. The system temperature is precisely controlled at 40 °C through a circulating water bath. A high-shear homogenizer is used to process at a rate of 10,000 revolutions per minute for 1.5 hours. During the process, the viscosity change is monitored in real time, and finally the viscosity of the mixed solution is stabilized in the range of 3500 - 4000 mPa·s.

[0022] In a preferred embodiment, in step S6, the homogenized mixed solution is introduced into a high-pressure homogenizer, and three-stage pressure gradients are set to gradually increase to 120 MPa. Each pressure stage is maintained for 5 minutes and processed three times in a cycle. A 3D printing nozzle device is synchronously connected, and the extrusion rate and movement trajectory are controlled by a computer to form a bionic microgroove structure with a depth of 50 - 80 microns on the fluid surface. After the treatment, a citric acid solution is added dropwise using an automatic titration system to precisely adjust the pH value of the system to the physiological neutral range of 7.0 ± 0.2.

[0023] In a preferred embodiment, in step S7, in a packaging environment with a cleanliness level of 10,000, the final product is filtered and sterilized through a 0.22-micron polyethersulfone membrane and then filled into pressure-resistant polyethylene containers by a quantitative filling machine. The nitrogen replacement technology is used during the packaging process to ensure that the oxygen content in the headspace of the container is less than 0.5%. The finished product is stored in a light-proof environment, and the temperature fluctuation is controlled between 15 - 25 °C.

[0024] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0025] 1. In the present invention, significant advantages are demonstrated through multi-dimensional synergistic effects. The formulation adopts an innovative composite system of natural and synthetic materials, with the dual amphiphilic micelles constructed by alkyl polyglycoside and tea saponin as the core, combined with the intelligent controlled release technology of mesoporous carriers, which can achieve targeted penetration and encapsulation and stripping of heavy oil stains in a neutral environment. The synergistic effect of the nano-photocatalytic material and the composite enzyme system breaks through the decomposition bottleneck of traditional alkaline cleaners for stubborn oil stains. At the same time, the bionic fluid design significantly improves the cleaning kinetic efficiency through the turbulent effect generated by the microgroove structure. The raw material selection takes into account both bio-based sources and functional modification. The introduction of bio-corrosion inhibitors and chelating agents effectively avoids the corrosion risk of metal components, forming a technical feature that emphasizes both cleaning and maintenance.

[0026] 2. In the present invention, the neutral system avoids damage to vehicle paint and rubber seals caused by strong acids and bases. The intelligent response-type nano-carrier ensures the precise release of active ingredients at the oil stain interface, significantly reducing the solvent usage. The photocatalytic free radical effect endows the product with the ability to continuously decompose in low-light environments, while the composite enzyme microcapsule technology ensures the enzyme activity stability under low-temperature conditions. The molecular-level protective film formed synchronously during the cleaning process can delay the secondary deposition of oil stains. The supporting 3D printing fluid technology enables the cleaner to penetrate into the complex structure of the engine compartment, meeting the operation requirements of both manual scrubbing and high-pressure flushing. The overall solution achieves breakthroughs in terms of efficiency, safety, and sustainability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the process principle of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] Embodiment:

[0030] Referring to Figure 1 ,

[0031] A neutral and highly efficient heavy oil stain cleaning formulation and application suitable for motor vehicles. The neutral and highly efficient heavy oil stain cleaning formulation includes:

[0032] 35 parts by weight of alkyl polyglycoside / tea saponin composite surfactant, 18 parts by weight of mesoporous silica nanospheres, 10 parts by weight of graphene oxide nanosheets, 8 parts by weight of lipase-protease composite microcapsules, 12 parts by weight of isomeric tridecyl alcohol polyoxyethylene ether, 6 parts by weight of ethylene glycol monobutyl ether penetrant, 9 parts by weight of citrus terpene extract, 5 parts by weight of chitosan quaternary ammonium salt modifier, 7 parts by weight of xanthan gum-sodium alginate composite thickener, 4 parts by weight of bio-based corrosion inhibitor, 3 parts by weight of sodium citrate chelating agent, 0.5 parts by weight of pH regulator (citric acid), and 100 parts by weight of deionized water;

[0033] Among them, the mesoporous silica nanospheres are synthesized by a hydrothermal method and have a controllable pore size structure of 5-10 nm; the lipase-protease composite microcapsules are prepared by a microfluidic chip technology with a coating rate of more than 98%; the graphene oxide nanosheets are prepared by an ultrasonic-microwave synergistic exfoliation method with the number of layers controlled within 3-5 layers.

[0034] An application of a neutral and highly efficient heavy oil stain cleaning formulation suitable for motor vehicles, including using the above-mentioned neutral and highly efficient heavy oil stain cleaning formulation for motor vehicles to prepare a highly efficient heavy oil stain cleaner.

[0035] The method for preparing a highly efficient heavy oil stain cleaner includes the following steps:

[0036] S1: Add alkyl polyglycoside and tea saponin into deionized water in proportion, stir at 800 rpm for 2 hours at 65 °C to form a self-assembled composite micelle dispersion;

[0037] S2: Mix the mesoporous silica nanospheres synthesized by the hydrothermal method with poly(acrylic acid-N-isopropylacrylamide), react at 50 °C for 4 hours under nitrogen protection, and obtain a functionalized carrier with a pH-responsive polymer grafted on the surface after centrifugation and washing;

[0038] S3: Disperse graphene oxide nanosheets in ethylene glycol, perform ultrasonic-microwave synergistic treatment for 30 minutes, then add a zinc oxide quantum dot suspension, and complete the heterostructure composite by magnetic stirring combined with ultraviolet light irradiation;

[0039] S4: Crosslink lipase and protease solutions with chitosan quaternary ammonium salt solution through microfluidic chip technology to form composite enzyme microcapsules with uniform particle size, collect and freeze-dry for later use;

[0040] S5: Add the products of steps S1 to S4, isomeric tridecyl alcohol polyoxyethylene ether, ethylene glycol monobutyl ether, and citrus terpene extract into the reaction kettle, add xanthan gum-sodium alginate composite thickener and bio-based corrosion inhibitor in stages, control the system temperature at 40 °C, and continuously homogenize for 1.5 hours;

[0041] S6: Transfer the mixed solution to a high-pressure homogenizer, circulate and process it 3 times at a pressure of 120 MPa, and at the same time form a directional fluid with a sharkskin micro-groove structure through a 3D printing nozzle, and adjust the pH to the neutral range;

[0042] S7: After adding sodium citrate chelating agent, filter through a 0.22 μm membrane, dispense into pressure-resistant containers, and store in the dark at 15 - 25 °C to complete the final preparation encapsulation.

[0043] In step S1, alkyl polyglycoside and tea saponin are accurately weighed by mass ratio and put into deionized water, the system temperature is maintained constant at 65 °C, and a double-layer constant temperature stirring device is used to continuously stir at a rate of 800 revolutions per minute for 2 hours. During this process, the natural amphiphilic molecules of tea saponin and the sugar group structure of alkyl polyglycoside self-assemble through hydrogen bonds and hydrophobic interactions to form a bilayer micelle structure with a particle size distribution in the range of 10 - 50 nanometers. After stirring, the stability of the micelle dispersion is detected by a dynamic light scattering instrument to ensure that the absolute value of the Zeta potential is greater than 30 mV to maintain the stability of the system.

[0044] In step S2, after the mesoporous silica nanospheres prepared by the hydrothermal synthesis method are vacuum-dried, they are mixed with the acrylic acid-N-isopropylacrylamide copolymer in anhydrous ethanol at a mass ratio of 1:0.8. The reaction system is heated to 50 °C under the protection of a nitrogen atmosphere and maintained for 4 hours by a magnetic stirrer to complete the grafting reaction. After the product is treated by a centrifuge at 12,000 revolutions per minute for 15 minutes, it is washed three times with ethanol and deionized water in turn, and finally a functionalized carrier with a surface grafting rate of 85% is obtained. The thermosensitive property of the copolymer in this process endows the carrier with the intelligent response release ability in an oil-polluted environment.

[0045] In step S3, the graphene oxide nanosheets are uniformly dispersed in the ethylene glycol solvent and placed in an ultrasonic-microwave synergistic reactor. The ultrasonic frequency is set at 40 kHz and the microwave power is 500 W, and the dual action is carried out for 30 minutes. Subsequently, the pre-prepared zinc oxide quantum dot suspension is added dropwise, and under the condition of magnetic stirring, it is irradiated with a 365 nm wavelength ultraviolet light source for 2 hours. This process enables the quantum dots to be anchored on the surface of the graphene sheet layer through chemical bonding to form a heterostructure complex with a photocatalytic synergistic effect. The transmission electron microscope characterization shows that the quantum dot distribution density reaches 1200-1500 per square micrometer.

[0046] In step S4, a microfluidic chip device is used to prepare the composite enzyme microcapsules. The mixture of lipase and protease is used as the inner phase, and the chitosan quaternary ammonium salt solution is used as the outer phase. The flow rate ratio of the two phases is controlled at 1:5 by a precision injection pump. After the interfacial crosslinking reaction is completed in the microchannel of the chip, the generated microcapsule emulsion is collected for freeze-drying treatment. The pre-freezing temperature is set at -40 °C, the cold trap temperature is -80 °C, and the vacuum degree is 10 Pa, and it is dried for 24 hours to obtain a solid microcapsule preparation with a particle size distribution of 50-80 micrometers and an enzyme activity retention rate exceeding 95%.

[0047] In step S5, the intermediates obtained in the previous four steps and additives such as isomeric tridecyl alcohol polyoxyethylene ether are sequentially added to a jacketed reaction kettle, and the xanthan gum-sodium alginate composite thickener is added in three gradients at intervals of 15 minutes to ensure uniform dispersion. The system temperature is precisely controlled at 40 °C by a circulating water bath, and a high-shear homogenizer is used to process it at a rate of 10,000 revolutions per minute for 1.5 hours. The viscosity change is monitored in real time during the process, and finally the viscosity of the mixed solution is stabilized in the range of 3500-4000 mPa·s.

[0048] In step S6, the homogenized mixture is introduced into a high-pressure homogenizer, and a three-stage pressure gradient is set to gradually increase to 120 MPa. Each pressure stage is maintained for 5 minutes and processed three times in a cycle. The 3D printing nozzle device is synchronously connected, and the extrusion rate and movement trajectory are controlled by a computer to form a bionic microgroove structure with a depth of 50-80 microns on the fluid surface. After the treatment, a citric acid solution is added dropwise using an automatic titration system to precisely adjust the pH value of the system to the physiological neutral range of 7.0±0.2.

[0049] In step S7, in a packaging environment with a cleanliness level of ten thousand class, the final product is filtered and sterilized through a 0.22-micron polyethersulfone membrane and then filled into pressure-resistant polyethylene containers by a quantitative filling machine. The nitrogen replacement technology is adopted during the packaging process to ensure that the oxygen content in the headspace of the container is less than 0.5%. The finished product is stored in a light-proof environment, and the temperature fluctuation is controlled between 15 and 25 degrees Celsius.

[0050] It can be seen from the above that:

[0051] In the present invention, significant advantages are demonstrated through multi-dimensional synergistic effects. The formulation adopts an innovative composite system of natural and synthetic materials, with the dual amphiphilic micelles constructed by alkyl polyglycoside and tea saponin as the core, combined with the intelligent controlled release technology of mesoporous carriers, which can achieve targeted penetration and encapsulation and stripping of heavy oil stains in a neutral environment. The synergistic effect of the nano-photocatalytic material and the composite enzyme system breaks through the decomposition bottleneck of traditional alkaline cleaners for stubborn oil stains, and at the same time, the bionic fluid design significantly improves the cleaning kinetic efficiency through the turbulent effect generated by the microgroove structure. The raw material selection takes into account both bio-based sources and functional modification, and the introduction of bio-corrosion inhibitors and chelating agents effectively avoids the corrosion risk of metal components, forming a technical feature that emphasizes both cleaning and maintenance.

[0052] In the present invention, the neutral system avoids the damage of strong acids and alkalis to car paint and rubber seals, and the intelligent responsive nano-carriers ensure the precise release of active ingredients at the oil stain interface, significantly reducing the solvent usage. The photocatalytic free radical effect endows the product with the ability to continuously decompose in a weak light environment, and the composite enzyme microcapsule technology ensures the enzyme activity stability under low temperature conditions. The molecular-level protective film formed synchronously during the cleaning process can delay the secondary deposition of oil stains, and the supporting 3D printing fluid technology enables the cleaner to penetrate into the complex structure of the engine compartment, taking into account the operation requirements of manual scrubbing and high-pressure flushing. The overall solution achieves breakthroughs in terms of efficacy, safety, and sustainability.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A neutral and efficient heavy oil cleaning formula and application suitable for motor vehicles, characterized by: The neutral and highly effective heavy oil cleaning formula comprises: 35 parts by weight of alkyl glycoside / tea saponin composite surfactant, 18 parts by weight of mesoporous silica nanospheres, 10 parts by weight of graphene oxide nanosheets, 8 parts by weight of lipase-protease composite microcapsules, 12 parts by weight of isomeric tridecanol polyoxyethylene ether, 6 parts by weight of ethylene glycol butyl ether penetrant, 9 parts by weight of citrus terpene extract, 5 parts by weight of chitosan quaternary ammonium salt modifier, 7 parts by weight of xanthan gum-sodium alginate composite thickener, 4 parts by weight of bio-based corrosion inhibitor, 3 parts by weight of sodium citrate chelating agent, 0.5 parts by weight of pH adjuster (citric acid), and 100 parts by weight of deionized water; Among them, mesoporous silica nanospheres are synthesized by hydrothermal method and have an adjustable pore size structure of 5-10nm; lipase-protease composite microcapsules are prepared by microfluidic chip technology with a coverage rate of more than 98%; graphene oxide nanosheets are prepared by ultrasonic-microwave synergistic exfoliation method, and the number of layers is controlled at 3-5 layers.

2. An application of a neutral and efficient heavy oil cleaning formula suitable for motor vehicles, characterized in that: The application comprises using the neutral and high-efficiency heavy oil cleaning formula suitable for motor vehicles as claimed in claim 1 to prepare a high-efficiency heavy oil cleaning agent.

3. The neutral and efficient heavy oil cleaning application for motor vehicles according to claim 2, characterized in that: The method for preparing a highly efficient heavy oil cleaning agent comprises the following steps: S1: adding alkyl glycoside and tea saponin in proportion to deionized water, stirring at 800 rpm for 2 hours at 65 degrees Celsius to form a self-assembled composite micelle dispersion; S2: Mixing the mesoporous silica nanospheres synthesized by the hydrothermal method with acrylic acid-N-isopropylacrylamide copolymer, reacting at 50 degrees Celsius for 4 hours under nitrogen protection, and obtaining a functionalized carrier with a pH-responsive polymer grafted on the surface after centrifugal washing; S3: Graphene oxide nanosheets are dispersed in ethylene glycol, and treated with ultrasound-microwave synergy for 30 minutes, followed by adding zinc oxide quantum dot suspension, and completing heterostructure composite by magnetic stirring combined with ultraviolet irradiation; S4: cross-linking the lipase and protease solutions with the chitosan quaternary ammonium salt solution through the microfluidic chip technology to form composite enzyme microcapsules with uniform particle size, which are then collected and freeze-dried for later use; S5: Add the products of steps S1 to S4, isomeric tridecanol polyoxyethylene ether, ethylene glycol butyl ether, and citrus terpene extract into a reactor, add xanthan gum-sodium alginate composite thickener and bio-based corrosion inhibitor in stages, control the system temperature at 40 degrees Celsius, and continue homogenizing for 1.5 hours; S6: The mixed solution is transferred to a high-pressure homogenizer and circulated for 3 times at a pressure of 120 MPa, while a directional fluid having a shark skin-like microgroove structure is formed through a 3D printing nozzle, and the pH is adjusted to a neutral range; S7: After adding sodium citrate chelating agent, filter through a 0.22 μm membrane, dispense into pressure-resistant containers, and store in a light-proof environment at 15-25 degrees Celsius to complete the final preparation packaging.

4. The neutral and efficient heavy oil cleaning application for motor vehicles according to claim 2, characterized in that: In the step S1, the alkyl glycoside and the tea saponin are accurately weighed according to the mass ratio and then put into deionized water, the system temperature is maintained constant at 65 degrees Celsius, and a double-layer constant temperature stirring device is used to continuously stir at a rate of 800 revolutions per minute for 2 hours; during this process, the natural amphiphilic molecules of the tea saponin and the glycosyl structure of the alkyl glycoside are spontaneously assembled through hydrogen bonds and hydrophobic forces to form a double-layer micelle structure with a particle size distribution in the range of 10-50 nanometers; after the stirring is completed, the stability of the micelle dispersion is detected by a dynamic light scattering instrument to ensure that the absolute value of the Zeta potential is greater than 30mV to maintain the stability of the system.

5. The neutral and efficient heavy oil cleaning application for motor vehicles according to claim 2, characterized in that: In the step S2, the mesoporous silica nanospheres prepared by the hydrothermal synthesis method are vacuum dried and then mixed with acrylic acid-N-isopropylacrylamide copolymer in anhydrous ethanol at a mass ratio of 1:0.8; the reaction system is heated to 50 degrees Celsius under the protection of a nitrogen atmosphere and maintained for 4 hours by a magnetic stirrer to complete the grafting reaction; the product is centrifuged at 12,000 rpm for 15 minutes, and then washed three times with ethanol and deionized water in sequence to finally obtain a functional carrier with a surface grafting rate of 85%; in this process, the temperature-sensitive properties of the copolymer give the carrier an intelligent response release capability in an oily environment.

6. The neutral and efficient heavy oil cleaning application for motor vehicles according to claim 2, characterized in that: In the step S3, the graphene oxide nanosheets are uniformly dispersed in an ethylene glycol solvent, placed in an ultrasonic-microwave synergistic reactor, and the ultrasonic frequency is set to 40kHz and the microwave power is set to 500W for 30 minutes; then the pre-prepared zinc oxide quantum dot suspension is added dropwise, and irradiated with a 365nm wavelength ultraviolet light source for 2 hours under magnetic stirring conditions; This process anchors quantum dots on the surface of graphene sheets through chemical bonding, forming a heterostructure complex with a synergistic photocatalytic effect. Transmission electron microscopy characterization shows that the distribution density of quantum dots reaches 1200-1500 per square micron.

7. The neutral and efficient heavy oil cleaning application for motor vehicles according to claim 2, characterized in that: In the step S4, a microfluidic chip device is used to prepare composite enzyme microcapsules, a lipase and protease mixture is used as an inner phase, a chitosan quaternary ammonium salt solution is used as an outer phase, and a precision injection pump is used to control the flow rate ratio of the two phases to be 1:5; after the interface cross-linking reaction is completed in the chip microchannel, the generated microcapsule emulsion is collected for freeze-drying treatment, and the pre-freezing temperature is set at -40 degrees Celsius, the cold trap temperature is set at -80 degrees Celsius, and the vacuum degree is set at 10Pa for 24 hours to obtain a solid microcapsule preparation with a particle size distribution of 50-80 microns and an enzyme activity retention rate of more than 95%.

8. The neutral and efficient heavy oil cleaning application for motor vehicles according to claim 2, characterized in that: In the step S5, the intermediates prepared in the first four steps and the isomeric tridecanol polyoxyethylene ether additive are sequentially added into the jacketed reactor, and the xanthan gum-sodium alginate composite thickener is added in three gradient steps, each time with an interval of 15 minutes to ensure uniform dispersion; the system temperature is precisely controlled at 40 degrees Celsius by a circulating water bath, and a high shear homogenizer is used to treat at a rate of 10,000 revolutions per minute for 1.5 hours, and the viscosity change is monitored in real time during the process, and finally the viscosity of the mixed solution is stabilized in the range of 3500-4000 mPa·s.

9. The neutral and efficient heavy oil cleaning application for motor vehicles according to claim 2, characterized in that: In the step S6, the homogenized mixed liquid is introduced into a high-pressure homogenizer, and a three-level pressure gradient is set to gradually increase to 120 MPa, each pressure segment is maintained for 5 minutes and the process is circulated three times; a 3D printing nozzle device is synchronously connected, and the extrusion rate and motion trajectory are controlled by a computer to form a bionic micro-groove structure with a depth of 50-80 microns on the fluid surface; after the treatment is completed, a citric acid solution is added dropwise using an automatic titration system to accurately adjust the pH value of the system to a physiological neutral range of 7.0±0.

2.

10. The neutral and efficient heavy oil cleaning application for motor vehicles according to claim 2, characterized in that: In the step S7, in a packaging environment with a cleanliness level of 10,000, the final product is sterilized by filtering through a 0.22 micron polyethersulfone membrane and then packaged into a pressure-resistant polyethylene container by a quantitative filling machine; the packaging process uses nitrogen replacement technology to ensure that the oxygen content in the container headspace is less than 0.5%; The finished products are stored in a dark environment with temperature fluctuation controlled between 15-25 degrees Celsius.

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