Cleaning agent composition and application

Abstract

The invention discloses a cleaning agent composition and application thereof, and the cleaning agent composition at least comprises 2, 3-dimethyl butane and pentane in a mass ratio of (0.6-2): 1. The cleaning agent provided by the invention is used for cleaning oil stains or residues including oil cooling liquid residues, and the cleaning agent composition has an excellent cleaning effect on the oil of the type, including high cleaning speed and no corrosion, and can penetrate into gaps for thorough cleaning.

Description

Technical Field

[0001] The present invention relates to a cleaning agent composition and its application, which has excellent cleaning performance and low corrosiveness for synthetic oil and silicone oil-based coolants. Technical Background

[0002] Currently, the commonly used cleaning agents on the market are generally general industrial cleaning agents and traditional coolant cleaning agents. The main components of general industrial cleaning agents include common surfactants, solvents, etc. They use surfactants to reduce the surface tension, emulsify and disperse dirt in the solvent, so as to achieve the cleaning purpose. For example, a cleaning agent with water as the solvent and an anionic surfactant added has a certain cleaning effect on general oil stains and dust. Traditional coolant cleaning agents, including those used for coolant systems such as automobile engines, can remove scale, rust and other impurities in the coolant to a certain extent. Such cleaning agents usually contain acidic or alkaline substances and dissolve dirt through chemical reactions.

[0003] The existing cleaning agents have the following problems:

[0004] The cleaning effect is not good. General industrial cleaning agents are difficult to specifically remove the residues of synthetic oil and silicone oil-based coolants.

[0005] Poor compatibility: Energy storage systems contain various materials, such as metallic lithium, copper, etc. of battery electrodes, plastics, rubbers, etc. of cooling pipes. General industrial cleaning agents may corrode metal electrodes, resulting in a decline in battery performance; the acidic or alkaline components in traditional coolant cleaning agents may also react with the plastic and rubber components of energy storage systems, making them age and become brittle, affecting the system sealing performance and overall performance.

[0006] CN113773915A discloses a cleaning agent for a cooling system, which includes an acid-resistant water antifreeze, an alkaline water complexing agent, a slow-release agent, an acid-resistant penetrant, an anionic surfactant, an inorganic acid, an organic acid, and water by mass ratio, and has excellent corrosion resistance, but has poor cleaning performance for energy storage system such as battery coolant. Summary of the Invention

[0007] In order to solve the problems existing in the above-mentioned prior art, the purpose of the present invention is to disclose a cleaning agent composition and its application. The cleaning agent has excellent cleaning performance and low corrosiveness for the oily coolant residues of energy storage systems including lithium batteries.

[0008] The technical solution provided by the present invention is as follows:

[0009] A cleaning agent composition, comprising at least 2,3-dimethylbutane and pentane in a mass ratio of (0.6-2):1.

[0010] Preferably, the cleaning agent composition further comprises one or more of 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane.

[0011] More preferably, the cleaning agent composition comprises 3-methylpentane, and the mass of 3-methylpentane is 20%-100% of the mass of 2,3-dimethylbutane. 3-methylpentane has a low surface tension, which promotes the penetration and spreading of the cleaning agent and improves the cleaning efficiency.

[0012] More preferably, the cleaning agent composition comprises 2-methylpentane, and the mass of 2-methylpentane is 10%-80% of the mass of 2,3-dimethylbutane.

[0013] More preferably, the cleaning agent composition comprises 2-methylpentane and 3-methylpentane, and the mass ratio of 2-methylpentane to 3-methylpentane is (0.4-1):1.

[0014] More preferably, the cleaning agent composition comprises 2,2-dimethylbutane, and the mass of 2,2-dimethylbutane is 10%-80% of the mass of 2,3-dimethylbutane. 2,2-dimethylbutane has outstanding dissolving ability, which promotes the dissolution of dirt and improves the cleaning efficiency.

[0015] More preferably, the cleaning agent composition comprises 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane, and the mass ratio of 2-methylpentane to 3-methylpentane to 2,2-dimethylbutane is (0.5-1):(0.6-2.5):1.

[0016] Even more preferably, the cleaning agent composition further comprises one or more of 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane. Based on a total mass of 100 parts, the cleaning agent composition comprises at least 40-70 parts in total of 2,3-dimethylbutane and pentane by mass.

[0017] More preferably, the cleaning agent composition comprises the following components by mass percentage:

[0018]

[0019] Furthermore, a cleaning agent composition is provided, which comprises at least 2,3-dimethylbutane and pentane with a mass ratio of (0.6-2):1, and a propellant. The propellant can be a liquefied gas or a compressed gas.

[0020] The propellant is a liquid substance under a pressurized state, which is mixed with other components in the cleaning agent composition. The propellant is in a gaseous state under normal pressure, and other components in the composition form droplets and are dispersed therein. Thus, the gaseous propellant drives the spraying onto the surface to be cleaned to contact the residual coolant, and then the cleaning effect is exerted.

[0021] The propellant can use liquefied gas or compressed gas, and examples include liquefied petroleum gas (LPG), dimethyl ether (DME), nitrogen, carbon dioxide, compressed air, argon, fluorine-based gas, etc., but are not limited thereto. These gases can be used alone or as a mixture of two or more. In a specific embodiment, the cleaning agent composition is stored in a pressure-resistant container so that the propellant remains in a liquid state, facilitating storage, transportation, and use.

[0022] More preferably, in the cleaning agent composition, the mass percentage of the propellant is 5%-50%.

[0023] More preferably, the cleaning agent composition further includes one or more of 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane.

[0024] More preferably, the cleaning agent composition includes 3-methylpentane, and the mass of 3-methylpentane is 20%-100% of the mass of 2,3-dimethylbutane. 3-methylpentane has a low surface tension, which promotes the penetration and spreading of the cleaning agent and improves the cleaning efficiency.

[0025] More preferably, the cleaning agent composition includes 2-methylpentane, and the mass of 2-methylpentane is 10%-80% of the mass of 2,3-dimethylbutane.

[0026] More preferably, the cleaning agent composition includes 2-methylpentane and 3-methylpentane, and the mass ratio of 2-methylpentane:3-methylpentane is (0.4-1):1.

[0027] More preferably, the cleaning agent composition includes 2,2-dimethylbutane, and the mass of 2,2-dimethylbutane is 10%-80% of the mass of 2,3-dimethylbutane. 2,2-dimethylbutane has outstanding dissolving ability, which promotes the dissolution of dirt and improves the cleaning efficiency.

[0028] More preferably, the cleaning agent composition includes 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane, and the mass ratio of 2-methylpentane:3-methylpentane:2,2-dimethylbutane is (0.5-1):(0.6-2.5):1.

[0029] More preferably, the cleaning agent composition further includes one or more of 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane. Based on a total mass of 100 parts, the cleaning agent composition includes at least a total of 40-70 parts by mass of 2,3-dimethylbutane and pentane.

[0030] Further preferably, the propellant is liquefied petroleum gas, and the propane and butane molecules released after the liquefied petroleum gas is gasified are adsorbed on the liquid-gas interface, reducing the surface tension and enhancing the permeability. At the same time, the alkanes in the liquefied petroleum gas work synergistically with other components in the cleaning agent composition to dissolve non-polar dirt (such as silicone oil).

[0031] Further preferably, the cleaning agent composition comprises the following components by mass percentage:

[0032]

[0033] A spray cleaning tank consists of a pressure-resistant container with a spray port and a cleaning agent composition placed therein, which is convenient for storage, transportation and use of the cleaning agent composition.

[0034] The cleaning composition is used to clean oil stains or residues, including oil coolant residues, and the coolants include but are not limited to synthetic oil coolants such as polyalphaolefins, natural gas synthetic oils, synthetic esters, and silicone oil coolants. The cleaning composition has excellent cleaning effects on the above-mentioned types of oils, including fast cleaning speed, no corrosion, and the ability to thoroughly clean deep into gaps.

[0035] Compared with the prior art, the present invention has the following advantages:

[0036] (1) The cleaning agent composition of the present invention is made into a spray cleaning tank and then applied, and the application operation is flexible and simple;

[0037] (2) It can effectively remove synthetic oil coolants and silicone oil coolants attached to components;

[0038] (3) Environmentally friendly materials, no toxic solvents, zero ODP, meeting environmental protection requirements, and non-corrosive;

[0039] (4) It evaporates quickly, leaves no residue, and will not corrode or damage equipment. DETAILED DESCRIPTION

[0040] Specific examples are given below to further illustrate the present invention.

[0041] The compositions of the cleaning agents of Examples 1 to 10 are shown in Table 1 in parts by mass (a total of 100 parts by mass):

[0042] Table 1 Cleaning agent composition

[0043]

[0044]

[0045] Test Example

[0046] 1. Cleaning performance: The cleaning agents of Examples 1-10 and the comparative cleaning agent were subjected to performance tests. 250 g of the cleaning agents of Examples 1-7 were respectively placed in spray bottles of the same specification (KLCB Keli, 500 ml capacity, product number KA-G017) to obtain Spray Wash Cans 1-7; 250 g of the cleaning agents of Examples 8-10 were respectively placed in pressure-resistant spray cans of the same specification (the same specification as the pressure-resistant spray can of the cleaning agent with the manufacturer Ailisen and the product model SF755) to obtain Spray Wash Cans 8-10. The comparative cleaning agent was the pre-filled Ailisen SF755.

[0047] Take 11 pieces of PCB boards with a size of 40 cm × 20 cm as samples, weigh the initial weight m0 of the PCB boards, take 3 g of synthetic oil-based coolant (product model FUCHS BluEV TF 8005) and evenly apply it on the surface of the samples and record its weight m1. Then place the PCB boards at an angle of 45°. Use Spray Wash Cans 1-10 and the comparative cleaning agent to evenly spray the cleaning agent on the surface of the samples at a distance of about 4-5 cm from the surface from left to right and from top to bottom (weigh the initial mass mn of the spray wash can, one spray wash can is used for one PCB board, the spraying time for each time is about 9-10 s, the amount used for each spraying is about 4-5 g, weigh the mass my of the spray wash can after spraying, and calculate the weight of the cleaning agent m2 = mn - my). Let it stand until the mass of the PCB board no longer changes (the change is less than 0.001 g within 3 minutes), record the final mass as m3, obtain the mass of the sample with dirt mx = m1 - m0, the weight change after the sample is contaminated and after cleaning (residual mass of the coolant) m = m3 - m0, then the cleaning ratio of the coolant is x = (1 - m / mx) * 100%. The data is shown in Table 2.

[0048] Take 11 pieces of PCB boards with a size of 40 cm × 20 cm as samples, weigh the initial weight m0 of the PCB boards, take 3 g of silicone-based coolant (Huizhou Anpin New Materials Co., Ltd., product model AP-5) and evenly apply it on the surface of the samples and record its weight m1. Then place the PCB boards at an angle of 45°. Use Spray Wash Cans 1-10 and the comparative cleaning agent to evenly spray the cleaning agent on the surface of the samples at a distance of about 4-5 cm from the surface from left to right and from top to bottom (weigh the initial mass mn of the spray wash can, one spray wash can is used for one PCB board, the spraying time for each time is about 9-10 s, the amount used for each spraying is about 4-5 g, weigh the mass my of the spray wash can after spraying, and calculate the weight of the cleaning agent m2 = mn - my). Let it stand until the mass of the PCB board no longer changes (the change is less than 0.001 g within 3 minutes), record the final mass as m3, obtain the mass of the sample with dirt mx = m1 - m0, the weight change after the sample is contaminated and after cleaning (residual mass of the coolant) m = m3 - m0, then the cleaning ratio of the coolant is x = (1 - m / mx) * 100%. The data is shown in Table 3.

[0049] 2. Volatility rate: Take 11 pieces of PCB boards with a size of 40 cm × 20 cm, weigh and record the initial mass mc of the spray washing tank. Place the PCB boards horizontally in a 25°C space without flowing air. Spray the cleaning agents from the left to the right and from the top to the bottom on the surface of the PCB boards at a distance of about 4 - 5 cm from the surface evenly using spray washing tanks numbered 1 - 10 and the comparative cleaning agent. Spray one PCB board with one spray washing tank, spray for about 5 s each time. Start timing ta after spraying, weigh the spray washing tank to get mass mb, record the mass of the PCB board, calculate the mass of the cleaning agent mr = mc - mb. Let it stand until the mass of the PCB board no longer changes (record once every 20 s until the change within 1 minute is less than 0.001 g). Stop timing and record the time tk, obtain the volatilization time of the cleaning agent tb = tk - ta - 1, calculate the volatility rate of the cleaning agent x = mr / tb. The data is shown in Table 4.

[0050] 3. Corrosiveness: Take aluminum, copper, steel, PTFE, FPC, and PCB sheets with a size of 30 mm × 30 mm, weigh and record the weight, take pictures to record the appearance. Immerse the sheets into the cleaning agents of Example 1, Example 5, and Example 9 respectively, and let them stand at room temperature of 25°C for 48 hours. After taking them out, wipe off the cleaning agent on the surface, and observe the color change and weight change of the sheets. The data is shown in Table 5.

[0051] Table 2

[0052]

[0053] Table 3

[0054]

[0055]

[0056] Table 4

[0057]

[0058] Table 5

[0059]

[0060] The test data in Table 2, Table 3, Table 4, and Table 5 show that the cleaning agent of the present invention has a good cleaning effect on synthetic oil and silicone oil coolant, and has no corrosion on materials, and has the characteristics of fast volatilization speed, no residue, low toxicity and environmental protection, and easy use.

[0061] The above content is a further detailed description of the present invention in combination with specific preferred implementation manners. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A cleaning agent composition, characterized in that Comprising at least 2,3-dimethylbutane and pentane with a mass ratio of (0.6 - 2):

1.

2. The cleaning agent composition according to claim 1, wherein The cleaning agent composition further comprises one or more of 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane.

3. The cleaning agent composition according to claim 2, wherein The cleaning agent composition comprises 2-methylpentane and 3-methylpentane, and the mass ratio of 2-methylpentane:3-methylpentane is (0.4 - 1):

1.

4. The cleaning agent composition according to claim 2, characterized in that The cleaning agent composition further comprises one or more of 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane. Based on a total mass of 100 parts, the cleaning agent composition comprises at least 40 - 70 parts by mass in total of 2,3-dimethylbutane and pentane.

5. The cleaning agent composition according to any one of claims 1 to 4, characterized in that, The cleaning agent composition comprises the following components by mass percentage:

6. The cleaning agent composition according to claim 1, wherein Comprising at least 2,3-dimethylbutane and pentane with a mass ratio of (0.6 - 2):1, and a propellant, where the propellant is a liquefied gas or a compressed gas.

7. The cleaning agent composition according to claim 6, wherein The cleaning agent composition comprises one or more of 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane. Based on a total mass of 100 parts, the cleaning agent composition comprises at least 40 - 70 parts by mass in total of 2,3-dimethylbutane and pentane.

8. The cleaning agent composition according to claim 6 or 7, characterized in that The propellant is liquefied petroleum gas, and the cleaning agent composition comprises the following components by mass percentage:

9. A spray cleaning can, which consists of a pressure-resistant container with a spray opening and the cleaning agent composition as claimed in claim 6 or 7 placed therein.

10. The application of the cleaning composition as claimed in claim 1 or 6 is for cleaning oil stains or residues, including residues of oil-based coolants, where the coolant is a polyalphaolefin, a synthetic oil from natural gas, a synthetic ester coolant, and an organosilicon oil coolant.

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