阅读说明：本技术 一种无残留汽车空调管道清洗剂及其制备方法 (Residue-free automobile air conditioner pipeline cleaning agent and preparation method thereof ) 是由 胡运华 熊竹君 刘小波 廖畅生 于 2021-06-10 设计创作，主要内容包括：一种无残留汽车空调管道清洗剂及其制备方法,涉及清洗剂领域；包括如下质量百分比计的组分：极性溶剂3-15％；非极性溶剂45-65％；氯代烃10-20％；液化石油气20-35％。本发明的一种无残留汽车空调管道清洗剂,去污力强、安全、性质稳定,可以清除空调系统管道内部在运行过程中产生的金属粉末、油污及微量水分,并且易挥发、无残留。氯代烃的溶解性很强,具有较强的脱脂能力,且易挥发；采用极性溶剂和非极性溶剂的复配,可以增强对油污和极性污垢的清洗力,提高清洗剂的稳定性；脱臭液化石油气为抛射剂,为气雾剂型清洗剂提供强大的喷射力。(A residue-free automobile air conditioner pipeline cleaning agent and a preparation method thereof, relating to the field of cleaning agents; the composite material comprises the following components in percentage by mass: 3-15% of polar solvent; 45-65% of a nonpolar solvent; 10-20% of chlorinated hydrocarbon; 20-35% of liquefied petroleum gas. The residue-free automobile air conditioner pipeline cleaning agent disclosed by the invention is strong in detergency, safe and stable in property, can be used for cleaning metal powder, oil stains and trace moisture generated in the operation process of the interior of an air conditioning system pipeline, and is volatile and residue-free. The chlorinated hydrocarbon has strong solubility, strong degreasing capability and easy volatilization; the polar solvent and the non-polar solvent are compounded, so that the cleaning force on oil stains and polar dirt can be enhanced, and the stability of the cleaning agent is improved; the deodorized liquefied petroleum gas is a propellant and provides strong jet force for the aerosol cleaning agent.)

1. The residue-free automobile air conditioner pipeline cleaning agent is characterized by comprising the following components in percentage by mass:

2. the residue-free automobile air conditioner pipeline cleaning agent as claimed in claim 1, wherein: the polar solvent is one or a composition of more than two of acetone, methyl acetate, isopropanol, methanol and ethanol.

3. The residue-free automobile air conditioner pipeline cleaning agent as claimed in claim 1, wherein: the nonpolar solvent is one or a composition of more than two of petroleum ether, No. 6 solvent oil, isohexane and cyclohexane.

4. The residue-free automobile air conditioner pipeline cleaning agent as claimed in claim 1, wherein: the chlorinated hydrocarbon is dichloromethane and/or trichloroethylene.

5. The residue-free automobile air conditioner pipeline cleaning agent as claimed in claim 1, wherein: the liquefied petroleum gas is deodorized liquefied petroleum gas.

6. The residue-free automobile air conditioner pipeline cleaning agent as claimed in claim 1, wherein: the mass ratio of the polar solvent to the nonpolar solvent to the chlorinated hydrocarbon is 1:8-12: 2-3.

7. The residue-free automobile air-conditioning pipeline cleaning agent as claimed in any one of claims 1 to 6, wherein: the composite material comprises the following components in percentage by mass:

8. the preparation method of the residue-free automobile air conditioner pipeline cleaning agent as claimed in any one of claims 1-7, characterized by comprising the following steps:

s1, mixing and uniformly stirring the polar solvent, the non-polar solvent and the chlorinated hydrocarbon to obtain a mixed material;

s2, filling the mixed material into an aerosol can, and then filling liquefied petroleum gas to obtain the residue-free automobile air conditioner pipeline cleaning agent.

9. The preparation method of the residue-free automobile air conditioner pipeline cleaning agent as claimed in claim 8, wherein the preparation method comprises the following steps: in step S1, the rotation speed of stirring is 200-500r/min, and the stirring time is 15-30 min.

Technical Field

The invention belongs to the field of cleaning agents, and particularly relates to a residue-free automobile air conditioner pipeline cleaning agent and a preparation method thereof.

Background

The automobile air conditioner is used for adjusting the indoor temperature, humidity and air cleanliness of an automobile and creating a comfortable environment in the automobile for drivers and passengers, and the main components of the air conditioning system comprise a compressor, a liquid storage tank, an evaporation tank, a condenser and pipelines for connecting the components. The compressor can be abraded to generate particles and metal powder in the long-term use process, oil stains can be brought into air conditioner components during installation, maintenance and disassembly, and the system is damaged due to abnormal work of the air conditioner system caused by trace moisture in refrigerant and compressor oil, so that the inside of an air conditioner pipeline system needs to be cleaned.

The related patents of the disclosed cleaning agent for the air conditioner of the automobile are mostly the cleaning of the outer surface of the air conditioning system of the automobile, such as an evaporation tank and a condenser. Such as: the patent with application number of CN201610046941.8, an air-conditioning pipeline cleaning agent and a production process thereof, actually cleans an evaporation tank outside an air-conditioning system, and is not used for cleaning the inside of an air-conditioning pipeline.

Common cleaner product is mostly liquid bottled at present on the market, need dilute with water or wash during the use, uses inconveniently, remains in air conditioner pipeline easily moreover and takes place to corrode, influences automobile air conditioner's life.

Disclosure of Invention

In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a residue-free duct cleaning agent for an automobile air conditioner, which can remove metal powder, oil stains and trace moisture generated in the operation process of the duct inside the air conditioning system, and has no residue.

The second purpose of the invention is to provide a preparation method of the residue-free automobile air conditioner pipeline cleaning agent.

One of the purposes of the invention is realized by adopting the following technical scheme:

the residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

further, the polar solvent is one or a composition of more than two of acetone, methyl acetate, isopropanol, methanol and ethanol.

The non-polar solvent is one or a composition of more than two of petroleum ether, 6# solvent oil, isohexane and cyclohexane.

Further, the chlorinated hydrocarbon is dichloromethane and/or trichloroethylene.

Further, the liquefied petroleum gas is deodorized liquefied petroleum gas. In the petroleum refining process, liquefied petroleum gas generated by devices such as coking, atmospheric and vacuum distillation, catalytic cracking and the like contains a large amount of sulfides, and can corrode automobile air-conditioning pipelines when being directly used, and deodorized liquefied petroleum gas is refined liquefied petroleum gas with odor removed by adsorption, desulfurization and other processes.

Further, the mass ratio of the polar solvent to the nonpolar solvent to the chlorinated hydrocarbon is 1:8-12: 2-3. The cleaning agent has strong cleaning power and high stability in the proportion.

Further, the paint comprises the following components in percentage by mass:

the second purpose of the invention is realized by adopting the following technical scheme:

a preparation method of a residue-free automobile air conditioner pipeline cleaning agent comprises the following steps:

s1, uniformly mixing a polar solvent, a non-polar solvent and chlorinated hydrocarbon to obtain a mixed material;

s2, filling the mixed material into an aerosol can, and then filling liquefied petroleum gas to obtain the residue-free automobile air conditioner pipeline cleaning agent.

Further, in step S1, the rotation speed of stirring is 200-500r/min, and the stirring time is 15-30 min.

Compared with the prior art, the invention has the beneficial effects that:

the residue-free automobile air conditioner pipeline cleaning agent disclosed by the invention is strong in detergency, safe and stable in property, can be used for cleaning metal powder, oil stains and trace moisture generated in the operation process of the interior of an air conditioning system pipeline, and is volatile and residue-free. The chlorinated hydrocarbon has strong solubility, strong degreasing capability, easy volatilization, small viscosity and surface tension, strong permeability, and capability of penetrating narrow gaps, thoroughly dissolving and removing attached dirt, realizing the effects of removing oil, wax, rust and oxide, and having no residue; according to the theory of 'similarity and compatibility', a polar solvent is adopted to dissolve hydrocarbon compounds rich in various polar groups, and the combination of the polar solvent and a nonpolar solvent can enhance the cleaning force on oil stains and polar dirt and improve the stability of the cleaning agent; the deodorized liquefied petroleum gas is a propellant and provides strong jet force for the aerosol cleaning agent.

The preparation method of the residue-free automobile air conditioner pipeline cleaning agent is simple in preparation process, suitable for mass production, excellent in stability, strong in cleaning force, fast in volatilization and free of residues.

Detailed Description

The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

Example 1

The residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

the preparation method of the residue-free automobile air conditioner pipeline cleaning agent comprises the following steps: at normal temperature, uniformly stirring and mixing acetone, petroleum ether, cyclohexane and dichloromethane at the stirring speed of 300r/min for 20 min; then the mixture is put into an aerosol can, a valve is inserted for sealing, and deodorized liquefied petroleum gas is filled into the aerosol can to obtain the air-conditioning pipeline cleaning agent of the embodiment.

The using method comprises the following steps: firstly, the automobile air-conditioning pipeline is dismantled in sections, the residue-free automobile air-conditioning pipeline cleaning agent is sprayed in, and finally, the cleaning process is completed by blowing the cleaning agent clean with nitrogen or compressed air.

Example 2

The residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

the preparation method of the residue-free automobile air conditioner pipeline cleaning agent comprises the following steps: at normal temperature, uniformly stirring and mixing isopropanol, No. 6 solvent oil and trichloroethylene, wherein the stirring speed is 300r/min, and the stirring time is 20 min; then the mixture is put into an aerosol can, a valve is inserted for sealing, and deodorized liquefied petroleum gas is filled into the aerosol can to obtain the air-conditioning pipeline cleaning agent of the embodiment.

Example 3

The residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

the preparation method of the residue-free automobile air conditioner pipeline cleaning agent comprises the following steps: at normal temperature, stirring and mixing various solvents uniformly, wherein the stirring speed is 300r/min, and the stirring time is 20 min; then the mixture is put into an aerosol can, a valve is inserted for sealing, and deodorized liquefied petroleum gas is filled into the aerosol can to obtain the air-conditioning pipeline cleaning agent of the embodiment.

Example 4

The residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

the preparation method of the residue-free automobile air conditioner pipeline cleaning agent comprises the following steps: at normal temperature, stirring and mixing various solvents uniformly, wherein the stirring speed is 300r/min, and the stirring time is 20 min; then the mixture is put into an aerosol can, a valve is inserted for sealing, and deodorized liquefied petroleum gas is filled into the aerosol can to obtain the air-conditioning pipeline cleaning agent of the embodiment.

Example 5

The residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

the preparation method of the residue-free automobile air conditioner pipeline cleaning agent comprises the following steps: at normal temperature, stirring and mixing various solvents uniformly, wherein the stirring speed is 300r/min, and the stirring time is 20 min; then the mixture is put into an aerosol can, a valve is inserted for sealing, and deodorized liquefied petroleum gas is filled into the aerosol can to obtain the air-conditioning pipeline cleaning agent of the embodiment.

Comparative example 1

The residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

the preparation method of the residue-free automobile air conditioner pipeline cleaning agent comprises the following steps: at normal temperature, uniformly stirring and mixing acetone, petroleum ether and cyclohexane, wherein the stirring speed is 300r/min, and the stirring time is 20 min; then the mixture is put into an aerosol can, a valve is inserted for sealing, and deodorized liquefied petroleum gas is filled into the aerosol can to obtain the air-conditioning pipeline cleaning agent of the embodiment.

Comparative example 2

The residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

the preparation method of the residue-free automobile air conditioner pipeline cleaning agent comprises the following steps: at normal temperature, uniformly stirring and mixing acetone, petroleum ether, cyclohexane and dichloromethane at the stirring speed of 300r/min for 20 min; then the mixture is put into an aerosol can, a valve is inserted for sealing, and deodorized liquefied petroleum gas is filled into the aerosol can to obtain the air-conditioning pipeline cleaning agent of the embodiment.

Comparative example 3

The residue-free automobile air conditioner pipeline cleaning agent comprises the following components in percentage by mass:

the preparation method of the residue-free automobile air conditioner pipeline cleaning agent comprises the following steps: at normal temperature, uniformly stirring and mixing acetone, petroleum ether, cyclohexane and dichloromethane at the stirring speed of 300r/min for 20 min; then the mixture is put into an aerosol can, a valve is inserted for sealing, and deodorized liquefied petroleum gas is filled into the aerosol can to obtain the air-conditioning pipeline cleaning agent of the embodiment.

Performance detection

An appropriate amount of the residue-free automobile air-conditioning pipeline cleaning agent of examples 1-5 was taken to test cleaning performance and stability.

1) The test method comprises the following steps:

and (3) stability testing: standing at normal temperature for 30 days, observing the appearance of the product, and observing whether a layering phenomenon exists or not;

and (3) testing the cleaning efficiency: testing according to MH/T6007;

and (3) distillation range test: the test was carried out according to the method of GB 255.

2) As a result: as shown in table 1.

Table 1 results of performance testing

Test items	Appearance (Normal temperature/30 days)	Cleaning efficiency/%)	Distillation range (. degree.C.)
				Standard requirements	/	≥90	/
Example 1	Not layering	98.5	48-83
				Example 2	Not layering	97	45-89
Example 3	Not layering	96.5	44-80
				Example 4	Not layering	97	41-82
Example 5	Not layering	96	56-88
				Comparative example 1	Not layering	72	43-81
Comparative example 2	Not layering	83	46-82
				Comparative example 3	Not layering	88	68-92

As can be seen from Table 1, the automobile air-conditioning pipeline cleaning agent prepared in the examples 1-5 has excellent stability, strong cleaning power, fast volatilization, no residue, cleaning efficiency higher than 90%, and various performances meeting the requirements. Compared with the example 1, the automobile air-conditioning pipeline cleaning agent in the comparative example 1 does not contain chlorohydrocarbon, so that the cleaning efficiency is low; the cleaning agent for the automobile air-conditioning pipeline in the comparative example 2 does not contain a polar solvent, so that the cleaning efficiency is low; the cleaning agent for the automobile air-conditioning pipeline in the comparative example 3 does not contain a nonpolar solvent, has low cleaning efficiency, has a high distillation range temperature, is not easy to volatilize quickly, and is easy to leave residues.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.