Agricultural film cleaning agent and preparation method thereof

Abstract

The invention relates to an agricultural film cleaning agent and a preparation method thereof, and belongs to the technical field of agricultural cleaning agents. The skin care product comprises the following raw material components: 50 to 90 parts of deionized water, 0.1 to 2 parts of a stabilizer, 0.01 to 1 part of protease, 0.01 to 0.5 part of cellulase, 0.01 to 0.5 part of lipase, 1 to 10 parts of limonene, 0.5 to 30 parts of an emulsifier, 1 to 5 parts of glycerol and 1 to 10 parts of a surfactant. The cleaning agent disclosed by the invention is simple and convenient in preparation process, green and environment-friendly in component, and capable of efficiently removing mildew spots, dust and other stubborn pollutants on agricultural films (such as greenhouse films and mulching films), recovering the transparency of the films, improving the growth environment of crops and prolonging the service life of the films.

Description

Technical Field

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

[0002] With the rapid development of modern agriculture, agricultural films are increasingly used in agricultural production. They are mainly used to cover farmland to increase soil temperature, maintain soil moisture, promote crop growth, and effectively prevent weeds and pests. However, after long-term use, a large amount of dirt, dust, pesticide residues and microorganisms will accumulate on the surface of agricultural films. These pollutants not only affect the light transmittance and thermal insulation properties of the film, but may also become a medium for the spread of pathogens, which has an adverse effect on the growth of crops.

[0003] Traditional agricultural film cleaning methods mostly rely on physical friction or chemical solvents, but these methods often have problems such as incomplete cleaning effect, low cleaning efficiency, severe damage to the film, impact on the greenhouse structure, and serious environmental pollution. In addition, replacing a new film is also one of the main ways to solve the problem, but it brings higher material and installation costs, and causes more "white pollution" to the environment. Therefore, it is particularly important to develop an efficient, environmentally friendly cleaning agent that does little damage to the film. Summary of the invention

[0004] In view of the above technical problems, the present invention provides an agricultural film cleaning agent and a preparation method thereof. The removal of organic pollutants on the surface of agricultural films is improved by combining protease, cellulase and amylase; limonene removes oil pollutants on the surface of agricultural films; emulsifiers improve the dispersibility of limonene in the system; and the cleaning effect is enhanced.

[0005] The present invention provides an agricultural film cleaning agent, whose raw material components include, by weight: 50-90 parts of deionized water, 0.1-2 parts of stabilizer, 0.01-1 parts of protease, 0.01-0.5 parts of cellulase, 0.01-0.5 parts of lipase, 1-10 parts of limonene, 0.5-30 parts of emulsifier, 1-5 parts of glycerol, and 1-10 parts of surfactant.

[0006] Furthermore, the stabilizer is one or more combinations of calcium chloride, potassium chloride, sodium chloride, potassium citrate and boric acid.

[0007] Furthermore, the emulsifier is any one of Triton X-100 or X-114.

[0008] Furthermore, the surfactant is any one of cocamidopropyl betaine, coconut oil fatty acid diethanolamide or fatty alcohol polyoxyethylene ether.

[0009] Furthermore, the agricultural film is any one or more of greenhouse film, ground film and agricultural and animal husbandry film.

[0010] The present invention also provides a method for preparing the above agricultural film cleaning agent, comprising the following steps: S1: Add deionized water to a beaker, add stabilizer while stirring, and after it is completely dissolved, add protease, cellulase and lipase, and stir evenly to obtain solution A; S2: Add limonene and emulsifier to a beaker, stir well, then add glycerin, stir well, then slowly add surfactant, and after the reaction is complete, obtain solution B; S3: slowly adding the solution A obtained in step S1 into the solution B obtained in step S2, stirring evenly, and finally subjecting to ultrasonic treatment to obtain an agricultural film cleaning agent.

[0011] Furthermore, the stirring speed is 150-600 rpm, and the stirring time is 5-50 min.

[0012] Furthermore, the ultrasonic treatment time is 20-60 min.

[0013] The technical solution of the present invention has the following advantages: 1. All ingredients of the present invention are selected from environmentally friendly materials, especially the selected biological enzymes, which can be naturally degraded after completing the decontamination task, and no harmful chemicals remain in the soil or water, which is beneficial to protecting the ecological environment and conforms to the development trend of green agriculture.

[0014] 2. The synergistic effect between the biological enzyme and limonene in the present invention can not only efficiently decompose the common protein residues, plant fiber fragments and starch pollutants on agricultural films, but also has excellent solubility and removal capabilities for oil and fat pollutants on the surface of agricultural films, effectively solving the problem of oily stains that are difficult to handle with traditional cleaning agents, and improving the comprehensiveness and thoroughness of cleaning.

[0015] 3. Compared with the highly irritating chemical components that may be contained in traditional cleaning agents, the present invention uses milder materials, is less irritating to operators and crops, and reduces the health risks that may arise during use.

[0016] 4. All the ingredients of the present invention are widely available, cheap and easy to obtain, the preparation method is simple and the preparation cost is low. The efficient cleaning ability means faster cleaning speed and better cleaning effect, which can reduce the number of cleaning times and the amount of cleaning, thereby reducing the use cost, and at the same time help to improve agricultural production efficiency and reduce crop losses caused by improper cleaning.

[0017] 5. The present invention can maintain the stability of the enzyme system during storage and use, ensuring the consistency of the cleaning effect. At the same time, the cleaning agent of the present invention is suitable for cleaning agricultural films of various types and materials, and has a wide range of applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are an application method of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0019] Figure 1 Surface appearance of agricultural film without treatment (a), after cleaning with tap water (b), and after cleaning with the cleaning agent prepared in Example 4 of the present invention (c). DETAILED DESCRIPTION

[0020] In order to further explain the purpose, technical solutions and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention are described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all. Based on these embodiments in the present invention, all other embodiments obtained without creative work are within the scope of protection of the present invention.

[0021] Example 1: A method for preparing an agricultural film cleaning agent, the steps of which are as follows: S1: Add 50 parts of deionized water to a beaker, add 0.5 parts of potassium chloride at 200 rpm, and after it is completely dissolved, add 0.01 parts of protease, 0.01 parts of cellulase and 0.01 parts of lipase, and stir for a while to obtain solution A; S2: Add 2.5 parts of limonene and 2.5 parts of Triton X-100 to a beaker, stir evenly at 200 rpm, add 1 part of glycerol, stir evenly, and finally slowly add 5 parts of fatty alcohol polyoxyethylene ether. After the reaction is complete, solution B is obtained; S3: Slowly add the solution A prepared in step S1 into the solution B prepared in step S2, stir at 200 rpm for 20 min, and finally perform ultrasonic treatment for 30 min to obtain an agricultural film cleaning agent.

[0022] Example 2: A method for preparing an agricultural film cleaning agent, the steps of which are as follows: S1: Add 50 parts of deionized water to a beaker, add 0.5 parts of boric acid at 200 rpm, and after complete dissolution, add 0.01 parts of protease, 0.05 parts of cellulase and 0.01 parts of lipase, and stir for a period of time to obtain solution A; S2: Add 5 parts of limonene and 2.5 parts of Triton X-100 to a beaker, stir evenly at 200 rpm, then add 1 part of glycerol, stir evenly, and finally slowly add 2 parts of fatty alcohol polyoxyethylene ether, and after the reaction is complete, obtain solution B; S3: Slowly add the solution A prepared in step S1 into the solution B prepared in step S2, stir at 200 rpm for 20 min, and finally perform ultrasonic treatment for 30 min to obtain an agricultural film cleaning agent.

[0023] Example 3: A method for preparing an agricultural film cleaning agent, the steps of which are as follows: S1: Add 50 parts of deionized water to a beaker, add 0.5 parts of sodium chloride and 0.5 parts of boric acid at 200 rpm, and after they are completely dissolved, add 0.05 parts of protease, 0.05 parts of cellulase and 0.01 parts of lipase, and stir for a while to obtain solution A; S2: Add 5 parts of limonene and 10 parts of Triton X-100 to a beaker, stir evenly at 200 rpm, then add 1 part of glycerol, stir evenly, and finally slowly add 2.5 parts of fatty alcohol polyoxyethylene ether, and after the reaction is complete, obtain solution B; S3: Slowly add the solution A prepared in step S1 into the solution B prepared in step S2, stir at 200 rpm for 20 min, and finally perform ultrasonic treatment for 30 min to obtain an agricultural film cleaning agent.

[0024] Example 4: A method for preparing an agricultural film cleaning agent, the steps of which are as follows: S1: Add 50 parts of deionized water to a beaker, add 0.1 parts of sodium chloride and 0.5 parts of boric acid at 200 rpm, and after they are completely dissolved, add 0.05 parts of protease, 0.01 parts of cellulase and 0.05 parts of lipase, and stir for a while to obtain solution A; S2: Add 5 parts of limonene and 10 parts of Triton X-100 to a beaker, stir evenly at 200 rpm, add 0.5 parts of glycerol, stir evenly, and finally slowly add 5 parts of fatty alcohol polyoxyethylene ether. After the reaction is complete, solution B is obtained; S3: Slowly add the solution A prepared in step S1 into the solution B prepared in step S2, stir at 200 rpm for 20 min, and finally perform ultrasonic treatment for 30 min to obtain an agricultural film cleaning agent.

[0025] Example 5: A method for preparing an agricultural film cleaning agent, the steps of which are as follows: S1: Add 50 parts of deionized water to a beaker, add 0.5 parts of calcium chloride and 0.5 parts of boric acid at 200 rpm, and after they are completely dissolved, add 0.05 parts of protease, 0.05 parts of cellulase and 0.05 parts of lipase, and stir for a while to obtain solution A; S2: Add 5 parts of limonene and 5 parts of Triton X-100 to a beaker, stir evenly at 200 rpm, add 2 parts of glycerin, stir evenly, and finally slowly add 5 parts of cocamidopropyl betaine. After the reaction is complete, solution B is obtained; S3: Slowly add the solution A prepared in step S1 into the solution B prepared in step S2, stir at 200 rpm for 20 min, and finally perform ultrasonic treatment for 30 min to obtain an agricultural film cleaning agent.

[0026] Example 6: A method for preparing an agricultural film cleaning agent, the steps of which are as follows: S1: Add 50 parts of deionized water to a beaker, add 0.1 parts of sodium chloride and 0.1 parts of potassium chloride at 200 rpm, and after they are completely dissolved, add 0.05 parts of protease, 0.01 parts of cellulase and 0.01 parts of lipase, and stir for a while to obtain solution A; S2: Add 5 parts of limonene and 10 parts of Triton X-100 to a beaker, stir evenly at 200 rpm, then add 3 parts of glycerin, stir evenly, and finally slowly add 5 parts of cocamidopropyl betaine. After the reaction is complete, solution B is obtained; S3: Slowly add the solution A prepared in step S1 into the solution B prepared in step S2, stir at 200 rpm for 20 min, and finally perform ultrasonic treatment for 30 min to obtain an agricultural film cleaning agent.

[0027] Example 7: A method for preparing an agricultural film cleaning agent, the steps of which are as follows: S1: Add 50 parts of deionized water to a beaker, add 0.5 parts of potassium chloride and 0.1 parts of boric acid at 200 rpm, and after they are completely dissolved, add 0.05 parts of protease, 0.05 parts of cellulase and 0.05 parts of lipase, and stir for a while to obtain solution A; S2: Add 5 parts of limonene and 15 parts of Triton X-100 to a beaker, stir evenly at 200 rpm, then add 3 parts of glycerin, stir evenly, and finally slowly add 5 parts of cocamidopropyl betaine. After the reaction is complete, solution B is obtained; S3: Slowly add the solution A prepared in step S1 into the solution B prepared in step S2, stir at 200 rpm for 20 min, and finally perform ultrasonic treatment for 30 min to obtain an agricultural film cleaning agent.

[0028] Comparative Example 1: Commercially available detergent was added to deionized water at a mass ratio of 1:1 to obtain an agricultural film cleaning agent.

[0029] Comparative Example 2: A method for preparing an agricultural film cleaning agent, the steps of which are as follows: S1: Add 50 parts of deionized water to a beaker, add 0.5 parts of potassium chloride and 0.1 parts of boric acid at 200 rpm, and stir for a while to obtain solution A; S2: Add 2.5 parts of limonene and 2.5 parts of glycerol into a beaker, stir evenly at 200 rpm, and obtain solution B after the reaction is complete; S3: Slowly add the solution A prepared in step S1 into the solution B prepared in step S2, stir at 200 rpm for 20 min, and finally perform ultrasonic treatment for 30 min to obtain an agricultural film cleaning agent.

[0030] Comparative Example 3: Based on Example 4, limonene was not added.

[0031] Comparative Example 4: Based on Example 4, only 0.07 parts of protease was added, and no cellulase and lipase were added.

[0032] Comparative Example 5: Based on Example 4, only 0.07 parts of cellulase was added, and no protease and lipase were added.

[0033] Comparative Example 6: Based on Example 4, only 0.07 parts of lipase was added, and no protease and cellulase were added.

[0034] Cleaning performance test: In order to verify the properties and effects of the agricultural film cleaning agent of the present application, an application example is provided: Take the waste agricultural film actually contaminated in an agricultural science and technology park in Liuyang City, Hunan Province, and evenly spray the cleaning agents of Examples 1-7 and Comparative Examples 1-2 on the surface of the waste agricultural film. Rinse with tap water after about 5 minutes and dry naturally. The control group is cleaned with tap water. The descaling condition, surface touch, light transmittance and other related parameters of the agricultural film before and after cleaning with each group of cleaning agents are tested, and the cleaning ability of the cleaning agent is characterized by the mass method. After cleaning, take out and dry and weigh, and calculate the cleaning efficiency according to the following formula.

[0035] Cleaning efficiency = (C0-C) / C0×100% Wherein, C0 is the weight of agricultural film before cleaning, in g; C is the weight after cleaning, in g; The obtained data are shown in Table 1.

[0036] Table 1 Cleaning parameters of Examples 1-7 and Comparative Examples 1-2

[0037] Figure 1 The following are the appearance pictures of agricultural film before and after cleaning. Figure 1(a) It was found that only the dust on the surface of the agricultural film washed with tap water was cleaned, and the stubborn dirt (black mildew and organic dirt) was not cleaned. The commercially available detergent in Comparative Example 1 also failed to remove the stubborn dirt, while the cleaning agent prepared in Example 4 can completely remove all the dirt on the surface of the agricultural film and restore the transmittance to 70.2%. According to the parameters in Table 1, compared with the control group, most of the dirt was removed after cleaning in Examples 1-2, but a small amount of mildew was still visible on the surface. The cleaning agent prepared in Examples 3-7 can completely remove the dirt on the surface of the agricultural film, restore the transmittance to 65-70%, and the surface is smooth. In summary, the agricultural film cleaning agent of the present invention can efficiently and quickly remove the dirt on the surface of the agricultural film, and the ingredients are green and environmentally friendly, easy to prepare, and have broad application prospects.

[0038] Obviously, the above is the preferred implementation of the present application, but it should not be understood as limiting the scope of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. An agricultural film cleaning agent, characterized in that: The raw material components include, by weight: 50-90 parts of deionized water, 0.1-2 parts of stabilizer, 0.01-1 parts of protease, 0.01-0.5 parts of cellulase, 0.01-0.5 parts of lipase, 1-10 parts of limonene, 0.5-30 parts of emulsifier, 1-5 parts of glycerol and 1-10 parts of surfactant.

2. The agricultural film cleaning agent according to claim 1, characterized in that: The stabilizer is one or more combinations of calcium chloride, potassium chloride, sodium chloride, potassium citrate and boric acid.

3. The agricultural film cleaning agent according to claim 1, characterized in that: The emulsifier is any one of Triton X-100 or X-114.

4. The agricultural film cleaning agent according to claim 1, characterized in that: The surfactant is any one of cocamidopropyl betaine, coconut oil fatty acid diethanolamide or fatty alcohol polyoxyethylene ether.

5. The agricultural film cleaning agent according to claim 1, characterized in that: The agricultural film is any one or more of greenhouse film, ground film and agricultural and animal husbandry film.

6. The method for preparing the agricultural film cleaning agent according to any one of claims 1 to 5, comprising the following steps: S1: Add deionized water to a beaker, add stabilizer while stirring, and after it is completely dissolved, add protease, cellulase and lipase, and stir evenly to obtain solution A; S2: Add limonene and emulsifier to a beaker, stir well, then add glycerin, stir well, then slowly add surfactant, and after the reaction is complete, obtain solution B; S3: slowly adding the solution A obtained in step S1 into the solution B obtained in step S2, stirring evenly, and finally subjecting to ultrasonic treatment to obtain an agricultural film cleaning agent.

7. The method for preparing an agricultural film cleaning agent according to claim 6, characterized in that: In steps S1, S2 and S3, the stirring speed is 150-600 rpm.

8. The method for preparing an agricultural film cleaning agent according to claim 6, characterized in that: The ultrasonic treatment time is 20-60 min.

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