Agricultural mulching film cleaning agent and preparation method thereof

Abstract

The invention relates to the technical field of cleaning agents, in particular to an agricultural mulching film cleaning agent and a preparation method thereof. The agricultural mulching film cleaning agent is prepared from the following components in parts by mass: 15 to 35 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 0 to 30 parts of fatty alcohol polyoxyethylene ether, 0 to 40 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0 to 60 parts of isodecanol polyoxyethylene ether, 0 to 1 part of sodium polyaspartate, 0.5 to 1 part of trisodium methylglycine diacetate and 0.5 to 1 part of sodium citrate. 0.1 to 0.5 part of a polyether defoaming agent; and 20000 to 25000 parts of water. The agricultural mulching film cleaning agent has the advantages of being low in raw material cost, low in foam, capable of saving water and stable in performance, the agricultural mulching film cleaning agent is good in agricultural mulching film cleaning effect, free of component residues, environmentally friendly and free of stimulation, and the cleaned agricultural mulching film can be well recycled. The invention provides a preparation method of the agricultural plastic mulching film cleaning agent, the agricultural plastic mulching film cleaning agent can be obtained by simply mixing the components, special operation is not needed, large-scale production can be achieved, and cleaning and utilization of large-scale recycled agricultural plastic mulching films are met.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning agents, and in particular to an agricultural mulch film cleaning agent and a preparation method thereof. Background Art

[0002] Agricultural mulch films are widely used in the cultivation of some agricultural works. The crops after using agricultural mulch films have the effect of increasing yield and improving quality, which can bring considerable economic benefits. In particular, in the cultivation of some economic crops such as cotton, agricultural mulch films are widely used and play a very important role. However, agricultural mulch films have a certain service life and must be replaced when they expire. The main component of agricultural mulch films is polyethylene, which has stable performance and is not easy to degrade. During long-term service, many stains such as soil, straw, humic acid, etc. will be attached, which hinders recycling. In the long run, it causes the so-called white pollution. Existing agricultural mulch film cleaning agents are relatively scarce, so it is urgent to develop a green, environmentally friendly and efficient agricultural mulch film cleaning agent to solve the problem of agricultural mulch film recycling. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide an agricultural mulch film cleaning agent and a preparation method thereof. The agricultural mulch film cleaning agent provided by the present invention has the characteristics of low raw material cost, low foaming and water saving, stable performance, good cleaning effect on agricultural mulch film, no residual components, environmental protection and no irritation, and the treated agricultural mulch film can be well recycled.

[0004] The technical solution of the present invention is as follows: The first aspect of the present invention provides an agricultural mulch cleaning agent, which includes the following components, measured by weight: 15-35 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 0-30 parts of fatty alcohol polyoxyethylene ether, 0-40 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0-60 parts of isomeric decanol polyoxyethylene ether, 0-1 part of sodium polyaspartate, 0.5-1 part of trisodium methylglycine diacetate, 0.5-1 part of sodium citrate, 0.1-0.5 part of polyether defoamer, and 20,000-25,000 parts of water.

[0005] Optionally, the agricultural mulch cleaning agent includes the following components in parts by mass: 15-20 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 0-10 parts of fatty alcohol polyoxyethylene ether, 0-30 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0-60 parts of isomeric decanol polyoxyethylene ether, 0-0.5 parts of sodium polyaspartate, 0.5-1 parts of trisodium methylglycine diacetate, 0.5-1 parts of sodium citrate, 0.1-0.5 parts of polyether defoamer, and 20,000-21,000 parts of water.

[0006] Optionally, the isomeric decanol polyoxyethylene ether includes isomeric decanol polyoxyethylene ether 1006 type and isomeric decanol polyoxyethylene ether 1003 type.

[0007] Optionally, the agricultural mulch cleaning agent includes the following components in parts by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 0.5 parts of sodium polyaspartate, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.1 parts of polyether defoamer, and 20,000 parts of water.

[0008] Optionally, the agricultural mulch cleaning agent includes the following components in parts by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.3 parts of polyether defoamer, and 20,000 parts of water.

[0009] Optionally, the agricultural mulch cleaning agent includes the following components in parts by mass: 20 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 30 parts of isomerized decanol polyoxyethylene ether 1006 type, 30 parts of isomerized decanol polyoxyethylene ether 1003 type, 0.5 parts of trisodium methylglycine diacetate, 1 part of sodium citrate, 0.5 parts of polyether defoamer, and 20,000 parts of water.

[0010] The second aspect of the present invention provides a method for preparing the agricultural mulch film cleaning agent of the present invention, which comprises the steps of: mixing the components according to the mass fraction ratio to obtain the agricultural mulch film cleaning agent.

[0011] Optionally, the mixing temperature is room temperature.

[0012] Beneficial effects: The present invention provides an agricultural mulch cleaning agent. On the basis of sodium fatty alcohol polyoxyethylene ether sulfate, an anionic surfactant with relatively high foam performance, a plurality of non-ionic surfactants with low foam performance (fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene ether and isomeric decanol polyoxyethylene ether, etc.) are firstly introduced. On the one hand, the compounding of two or more different types of surfactants will produce a synergistic effect, thereby improving the cleaning efficiency and obtaining a better cleaning effect; on the other hand, the foam surface of the compounded cleaning agent will have a neutralizing effect, thereby achieving a low-foam and water-saving effect; secondly, a plurality of chelating agents (sodium polyaspartate, trisodium methylglycine diacetate and sodium citrate, etc.) are introduced, which can generate soluble impurities with the hard water components in the water and remove them, thereby achieving a softening effect, and the chelating agents themselves are green and pollution-free components, thereby facilitating subsequent treatment; finally, a small amount of polyether defoaming agent is introduced, which can further optimize and improve the low-foaming property of the cleaning agent and improve the water-saving ability. The agricultural mulch film cleaning agent provided by the present invention has the characteristics of low raw material cost, low foaming and water saving, stable performance, good cleaning effect on agricultural mulch film, no component residue, environmental protection and no irritation, and the agricultural mulch film after cleaning can be well recycled. In addition, the present invention provides a preparation method of the agricultural mulch film cleaning agent, which can be obtained by simply mixing the components, without special operation, and can be mass-produced to meet the large-scale cleaning and use of agricultural films. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The surface SEM electron microscope images of a used dirty agricultural mulch film and the agricultural mulch film cleaned with the agricultural mulch film cleaning agents L1-L3 in Example 1.

[0014] Figure 2 The surface SEM electron microscope images of a used dirty agricultural mulch film and the agricultural mulch film cleaned with agricultural mulch film cleaning agents L4-L6 in Example 2.

[0015] Figure 3 The surface SEM electron microscope images of a used dirty agricultural mulch film and the agricultural mulch film cleaned with agricultural mulch film cleaning agents L7-L9 in Example 3. DETAILED DESCRIPTION

[0016] The present invention provides an agricultural mulch film cleaning agent and a preparation method thereof. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below. 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.

[0017] An embodiment of the present invention provides an agricultural mulch cleaning agent, which includes the following components, measured by weight: 15-35 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 0-30 parts of fatty alcohol polyoxyethylene ether, 0-40 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0-60 parts of isomeric decanol polyoxyethylene ether, 0-1 part of sodium polyaspartate, 0.5-1 part of trisodium methylglycine diacetate, 0.5-1 part of sodium citrate, 0.1-0.5 part of polyether defoamer, and 20,000-25,000 parts of water.

[0018] The embodiment of the present invention provides an agricultural mulch cleaning agent having the above-mentioned components. On the basis of the anionic surfactant fatty alcohol polyoxyethylene ether sodium sulfate (AES) having a relatively high foaming performance, a plurality of nonionic surfactants (fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene ether and isomeric decanol polyoxyethylene ether, etc.) with low foaming performance are first introduced. On the one hand, the compounding of two or more different types of surfactants will produce a synergistic effect, thereby improving the cleaning efficiency and obtaining a better cleaning effect. On the other hand, the foam surface of the compounded cleaning agent will have a neutralizing effect, thereby achieving a low-foaming and water-saving effect. Secondly, a plurality of chelating agents (sodium polyaspartate, trisodium methylglycine diacetate and sodium citrate, etc.) are introduced, which can generate soluble impurities with the hard water components in the water and remove them, thereby achieving a softening effect. The chelating agents themselves are green and pollution-free components, which are convenient for subsequent treatment. Finally, a small amount of polyether defoaming agent is introduced, which can further optimize and improve the low-foaming property of the cleaning agent and improve the water-saving ability. The agricultural mulch film cleaning agent provided by the present invention is a low-foaming and water-saving cleaning agent, which has the characteristics of low raw material cost, low foaming and water-saving, stable performance, good cleaning effect on agricultural mulch film, no residual components, environmental protection and no irritation. The agricultural mulch film after cleaning can be well recycled to solve the white pollution problem caused by film accumulation.

[0019] The raw materials of each component used in the embodiments of the present invention are all commercially available commodities well known to those skilled in the art, and are all of industrial grade.

[0020] In terms of weight, the agricultural mulch cleaning agent provided in the embodiment of the present invention comprises 15-35 parts of sodium polyoxyethylene fatty alcohol ether sulfate, preferably 15-20 parts. The CAS number of the sodium polyoxyethylene fatty alcohol ether sulfate is 68585-34-2.

[0021] In terms of weight, the agricultural mulch cleaning agent provided in the embodiment of the present invention comprises 0-30 parts, preferably 0-10 parts, of fatty alcohol polyoxyethylene ether. The CAS number of the fatty alcohol polyoxyethylene ether is 68131-39-5.

[0022] In terms of weight, the agricultural mulch cleaning agent provided in the embodiment of the present invention comprises 0-40 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, preferably 0-30 parts. The CAS number of the fatty alcohol polyoxyethylene polyoxypropylene ether is 68439-51-0.

[0023] In terms of weight, the agricultural mulch cleaning agent provided in the embodiment of the present invention comprises 0-60 parts of isomeric decanol polyoxyethylene ether. The CAS number of the isomeric decanol polyoxyethylene ether is 61827-42-7.

[0024] In terms of weight, the agricultural mulch film cleaning agent provided in the embodiment of the present invention comprises 0-1 part of sodium polyaspartate, preferably 0-0.5 part. The CAS number of the sodium polyaspartate is 181828-06-8.

[0025] In terms of mass fraction, the agricultural mulch film cleaning agent provided in the embodiment of the present invention includes 0.5-1 part of trisodium methylglycine diacetate. The CAS number of the trisodium methylglycine diacetate is 170492-24-7.

[0026] In terms of mass fraction, the agricultural mulch film cleaning agent provided in the embodiment of the present invention comprises 0.5-1 part of sodium citrate, and the CAS number of the sodium citrate is 68-04-2.

[0027] In terms of mass fraction, the agricultural mulch cleaning agent provided in the embodiment of the present invention includes 0.1-0.5 parts of a polyether defoamer. The parameters of the polyether defoamer are HLB value 1-3 and water-based molecules. In the embodiment of the present invention, the polyether defoamer is purchased from Guangzhou Dachuan Fine Chemical Co., Ltd., and the product number is W-892.

[0028] In terms of parts by mass, the agricultural mulch cleaning agent provided in the embodiment of the present invention includes 20,000-25,000 parts of water, preferably 20,000-21,000 parts. In the embodiment of the present invention, the water can be ordinary tap water, and the tap water can be acidic, neutral or alkaline. The agricultural mulch cleaning agent of the present invention is applicable to water of different acidity and alkalinity, and can clean the film when using acidic water or alkaline water, and is particularly suitable for areas where water is scarce or of poor quality.

[0029] In some embodiments, the isomeric decanol polyoxyethylene ether includes isomeric decanol polyoxyethylene ether 1006 and isomeric decanol polyoxyethylene ether 1003. The isomeric decanol polyoxyethylene ether 1003 is a colorless transparent liquid with a cloud point of 54 (°C, BDGE), a pH value of 1wt% aqueous solution of 6.7, a hydroxyl value of 192 (mg KOH / g), and an HLB of 9.2; the isomeric decanol polyoxyethylene ether 1006 is a colorless transparent liquid with a cloud point of 76 (°C, BDGE), a pH value of 1wt% aqueous solution of 7, a hydroxyl value of 100 (mg KOH / g), and an HLB of 14.5.

[0030] In some embodiments, the agricultural mulch cleaning agent includes the following components, measured by weight: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 0.5 parts of sodium polyaspartate, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.1 parts of polyether defoamer, and 20,000 parts of water.

[0031] In some embodiments, the agricultural mulch cleaning agent includes the following components, measured by weight: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.3 parts of polyether defoamer, and 20,000 parts of water.

[0032] In some embodiments, the agricultural mulch cleaning agent includes the following components, measured by weight: 20 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 30 parts of isomeric decanol polyoxyethylene ether 1006 type, 30 parts of isomeric decanol polyoxyethylene ether 1003 type, 0.5 parts of trisodium methylglycine diacetate, 1 part of sodium citrate, 0.5 parts of polyether defoamer, and 20,000 parts of water.

[0033] The embodiment of the present invention further provides a method for preparing an agricultural mulch film cleaning agent, which comprises the steps of: mixing the components according to a mass ratio to obtain the agricultural mulch film cleaning agent.

[0034] In some embodiments, the mixing temperature is room temperature.

[0035] The preparation method of the agricultural mulch film cleaning agent provided in the embodiment of the present invention can be obtained by simply mixing the components, without the need for special operations, and can be mass-produced to meet the large-scale cleaning and use of agricultural films.

[0036] The agricultural mulch film cleaning agent and the preparation method thereof provided by the present invention are further described below through specific examples.

[0037] Example 1 An agricultural mulch film cleaning agent L1 comprises the following components, measured by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 0.5 parts of sodium polyaspartate, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.1 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 7.5.

[0038] An agricultural mulch film cleaning agent L2 comprises the following components, measured by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 0.5 parts of sodium polyaspartate, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.1 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 8.5.

[0039] An agricultural mulch film cleaning agent L3 comprises the following components, measured by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 0.5 parts of sodium polyaspartate, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.1 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 5.5.

[0040] The preparation method of the agricultural mulch film cleaning agent L1-L3 is as follows: prepare the raw materials of each component according to the above-mentioned mass proportion, mix and stir the raw materials of each component at room temperature to obtain the agricultural mulch film cleaning agent.

[0041] Example 2 An agricultural mulch film cleaning agent L4 comprises the following components, measured by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.3 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 7.5.

[0042] An agricultural mulch film cleaning agent L5 comprises the following components, measured by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.3 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 8.5.

[0043] An agricultural mulch film cleaning agent L6 comprises the following components, measured by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.3 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 5.5.

[0044] The preparation method of the agricultural mulch film cleaning agent L4-L6 is as follows: prepare the raw materials of each component according to the above-mentioned mass proportion, mix and stir the raw materials of each component at room temperature to obtain the agricultural mulch film cleaning agent.

[0045] Example 3 An agricultural mulch film cleaning agent L7 comprises the following components, measured by mass: 20 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 30 parts of isomeric decanol polyoxyethylene ether 1006 type, 30 parts of isomeric decanol polyoxyethylene ether 1003 type, 0.5 parts of trisodium methylglycine diacetate, 1 part of sodium citrate, 0.5 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 7.5.

[0046] An agricultural mulch cleaning agent L8 comprises the following components, measured by mass: 20 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 30 parts of isomeric decanol polyoxyethylene ether 1006 type, 30 parts of isomeric decanol polyoxyethylene ether 1003 type, 0.5 parts of trisodium methylglycine diacetate, 1 part of sodium citrate, 0.5 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 8.5.

[0047] An agricultural mulch cleaning agent L9 comprises the following components, measured by mass: 20 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 30 parts of isomeric decanol polyoxyethylene ether 1006 type, 30 parts of isomeric decanol polyoxyethylene ether 1003 type, 0.5 parts of trisodium methylglycine diacetate, 1 part of sodium citrate, 0.5 parts of polyether defoamer, and 20,000 parts of tap water with a pH value of 5.5.

[0048] The preparation method of the agricultural mulch film cleaning agent L7-L9 is as follows: prepare the raw materials of each component according to the above-mentioned mass proportion, mix and stir the raw materials of each component at room temperature to obtain the agricultural mulch film cleaning agent.

[0049] The cleaning power and foam performance of the agricultural mulch cleaning agents L1-L9 prepared in the above embodiments 1-3 were tested. Specifically, the used dirty agricultural mulch films were placed in the agricultural mulch cleaning agents L1-L9 respectively, soaked and cleaned for about 1 hour, then taken out and rinsed with tap water. After drying, the cleaned agricultural mulch films were obtained without any other operations.

[0050] Scanning electron microscopy (SEM) was used to characterize the surface morphology of used dirty agricultural mulch films and agricultural mulch films cleaned with agricultural mulch film cleaning agents L1-L9. Figure 1The surface SEM electron microscope images of a used dirty agricultural mulch film and the agricultural mulch film cleaned with the agricultural mulch film cleaning agents L1-L3 in Example 1, wherein (a) represents the surface SEM electron microscope image of the used dirty agricultural mulch film, (b) represents the surface SEM electron microscope image of the agricultural mulch film cleaned with the agricultural mulch film cleaning agent L1, (c) represents the surface SEM electron microscope image of the agricultural mulch film cleaned with the agricultural mulch film cleaning agent L2, and (d) represents the surface SEM electron microscope image of the agricultural mulch film cleaned with the agricultural mulch film cleaning agent L3; Figure 2 The surface SEM electron microscope images of a used dirty agricultural mulch film and the agricultural mulch film cleaned with the agricultural mulch film cleaning agents L4-L6 in Example 2, wherein (a) represents the surface SEM electron microscope image of the used dirty agricultural mulch film, (b) represents the surface SEM electron microscope image of the agricultural mulch film cleaned with the agricultural mulch film cleaning agent L4, (c) represents the surface SEM electron microscope image of the agricultural mulch film cleaned with the agricultural mulch film cleaning agent L5, and (d) represents the surface SEM electron microscope image of the agricultural mulch film cleaned with the agricultural mulch film cleaning agent L6; Figure 3 The surface SEM electron micrographs of used dirty agricultural mulch films and agricultural mulch films cleaned with agricultural mulch film cleaning agents L7-L9 in Example 3, wherein (a) is a surface SEM electron micrograph of used dirty agricultural mulch films, (b) is a surface SEM electron micrograph of agricultural mulch films cleaned with agricultural mulch film cleaning agent L7, (c) is a surface SEM electron micrograph of agricultural mulch films cleaned with agricultural mulch film cleaning agent L8, and (d) is a surface SEM electron micrograph of agricultural mulch films cleaned with agricultural mulch film cleaning agent L9. Figure 1-Figure 3 It can be seen that the surface of the agricultural mulch film after being cleaned by the agricultural mulch film cleaning agents L1-L9 is transparent and clean, the haze performance of random sampling is good, and there is basically no impurity white spots on the surface under SEM electron microscope observation. This shows that the agricultural mulch film cleaning agents L1-L9 in Examples 1-3 of the present invention have a good cleaning effect on used dirty agricultural mulch films.

[0051] Fourier transform infrared spectrometer (FT-IR) was used to characterize the composition of the surface of the agricultural mulch film after cleaning with agricultural mulch film cleaning agents L1-L9. The results showed that no cleaning agent or stain components remained on the surface of the agricultural mulch film after cleaning.

[0052] Table 1 shows the cleaning power and foaming performance of agricultural mulch film cleaning agents L1-L9.

[0053] Table 1

[0054] According to Table 1, the agricultural mulch film cleaning agents L1-L9 in Examples 1-3 have good cleaning effects on agricultural mulch films and show low foaming performance.

[0055] In order to further demonstrate the advantages of the agricultural mulch cleaning agent provided by the present invention, the cleaning performance is compared with the commonly used household cleaning agents on the market. Specifically, the agricultural mulch cleaning agent L1, agricultural mulch cleaning agent L4 and agricultural mulch cleaning agent L7 in the above-mentioned embodiments 1-3 are used to compare the cleaning performance with five commercially available cleaning agents (wherein commercially available 1 is Omo laundry detergent, commercially available 2 is Jinfang cleaning agent, commercially available 3 is Blue Moon laundry detergent, commercially available 4 is Liby laundry detergent, and commercially available 5 is Tide laundry detergent). The used dirty agricultural mulch film is respectively placed in the agricultural mulch cleaning agent L1, agricultural mulch cleaning agent L4, agricultural mulch cleaning agent L7 and five commercially available cleaning agents of the same mass, soaked and cleaned for about 1 hour, then taken out and rinsed with tap water, and dried to obtain the cleaned agricultural mulch film.

[0056] The performance of the agricultural mulch film after cleaning was compared in terms of haze (random sampling measurement), cleaning power, foam performance and cost. Table 2 shows the performance data of the agricultural mulch film cleaning agent of the present invention and five commercially available cleaning agents.

[0057] Table 2

[0058] It can be seen from Table 2 that, compared with the commonly used household cleaning agents on the market, the agricultural mulch film cleaning agent of the present invention has a good cleaning effect on dirty agricultural films, exhibits low foaming performance, is relatively low in cost, and has excellent comprehensive cleaning performance.

[0059] In summary, the agricultural mulch cleaning agent provided by the present invention has the characteristics of low raw material cost, low foaming and water saving, stable performance, good cleaning effect on agricultural mulch, no residual components, environmental protection and no irritation, and the agricultural mulch after cleaning can be well recycled. In addition, the present invention provides a preparation method of the agricultural mulch cleaning agent, which can be obtained by simply mixing the components, without special operations, and can be mass-produced to meet the large-scale cleaning and use of agricultural films.

[0060] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. An agricultural mulch film cleaning agent, characterized in that: The invention comprises the following components in parts by mass: 15-35 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 0-30 parts of fatty alcohol polyoxyethylene ether, 0-40 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0-60 parts of isomeric decanol polyoxyethylene ether, 0-1 part of sodium polyaspartate, 0.5-1 part of trisodium methylglycine diacetate, 0.5-1 part of sodium citrate, 0.1-0.5 part of polyether defoamer and 20,000-25,000 parts of water.

2. The agricultural mulch film cleaning agent according to claim 1, characterized in that: The invention comprises the following components in parts by mass: 15-20 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 0-10 parts of fatty alcohol polyoxyethylene ether, 0-30 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0-60 parts of isomeric decanol polyoxyethylene ether, 0-0.5 parts of sodium polyaspartate, 0.5-1 parts of trisodium methylglycine diacetate, 0.5-1 parts of sodium citrate, 0.1-0.5 parts of polyether defoamer and 20000-21000 parts of water.

3. The agricultural mulch film cleaning agent according to claim 1, characterized in that: The isomeric decanol polyoxyethylene ether includes isomeric decanol polyoxyethylene ether 1006 type and isomeric decanol polyoxyethylene ether 1003 type.

4. The agricultural mulch film cleaning agent according to claim 1, characterized in that: The composition comprises the following components in parts by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 0.5 parts of sodium polyaspartate, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.1 parts of polyether defoamer and 20,000 parts of water.

5. The agricultural mulch film cleaning agent according to claim 1, characterized in that: The composition comprises the following components in parts by mass: 15 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of fatty alcohol polyoxyethylene polyoxypropylene ether, 0.5 parts of trisodium methylglycine diacetate, 0.5 parts of sodium citrate, 0.3 parts of polyether defoamer and 20,000 parts of water.

6. The agricultural mulch film cleaning agent according to claim 1, characterized in that: The composition includes the following components by weight: 20 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 30 parts of isomeric decanol polyoxyethylene ether 1006 type, 30 parts of isomeric decanol polyoxyethylene ether 1003 type, 0.5 parts of trisodium methylglycine diacetate, 1 part of sodium citrate, 0.5 parts of polyether defoamer and 20,000 parts of water.

7. A method for preparing the agricultural mulch film cleaning agent according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: mixing the components according to the mass ratio to obtain the agricultural mulch film cleaning agent.

8. The method for preparing the agricultural mulch film cleaning agent according to claim 7, characterized in that: The mixing temperature is room temperature.

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