A method for increasing the surface energy concentration of a mulch film

Abstract

The application discloses a method for improving energy aggregation on the surface of a covering film, which comprises the following steps: adding pre-prepared biodegradable substances into dimethylformamide solvent, stirring uniformly to obtain a biodegradable substance solution; placing a polyimide covering film into the biodegradable substance solution for soaking treatment; and taking out the polyimide covering film after a preset soaking time and performing drying treatment. The polyimide covering film is treated by using biodegradable substances according to the technical scheme of the application, so that the energy aggregation on the surface of the polyimide covering film can be effectively improved, and the method has the characteristics of low cost and environmental protection, and is beneficial to large-scale application.

Description

Technical Field

[0001] This invention relates to the field of covering film technology, and in particular to a method for improving energy accumulation on the surface of a covering film. Background Technology

[0002] With the development of technology, polyimide cover films have been applied in many fields. However, due to the low surface energy accumulation of polyimide cover films, their surfaces are prone to defects, such as color changes, uneven printing, and difficulty in coating, which have a certain impact on coating, printing, and interface adhesion processes.

[0003] Traditional methods for improving surface energy accumulation include physical modification and chemical modification. However, these methods suffer from high costs and environmental problems, which hinder large-scale applications. Summary of the Invention

[0004] The purpose of this invention is to provide a method for improving energy accumulation on the surface of a covering film. By treating the polyimide covering film with biodegradable substances, the energy accumulation on the surface of the polyimide covering film can be effectively improved, and it has the characteristics of low cost and environmental protection, which is conducive to large-scale application.

[0005] To achieve the above objectives, embodiments of the present invention provide a method for improving energy accumulation on the surface of a covering film, comprising:

[0006] The pre-prepared biodegradable material is added to dimethylformamide solvent and stirred evenly to obtain a biodegradable material solution.

[0007] The polyimide covering film was immersed in the biodegradable substance solution for treatment.

[0008] After the preset soaking time, the polyimide cover film is removed and dried.

[0009] Furthermore, the biodegradable material comprises the following components in parts by weight: 15 parts PBST, 80 parts polylactic acid, 4 parts adhesive, and 1 part surfactant.

[0010] Furthermore, the concentration of the biodegradable substance solution is 5-8%.

[0011] Furthermore, the soaking time is 8 to 12 hours.

[0012] Compared with existing technologies, this invention provides a method for improving energy accumulation on the surface of a covering film. First, a pre-prepared biodegradable material is added to a dimethylformamide solvent and stirred until homogeneous to obtain a biodegradable material solution. Then, the polyimide covering film is immersed in the biodegradable material solution for a pre-set immersion time. After a preset immersion time, the polyimide covering film is removed and dried. This invention, by treating the polyimide covering film with a biodegradable material, effectively improves the energy accumulation on the surface of the polyimide covering film and is characterized by low cost and environmental friendliness, which is beneficial for large-scale application. Attached Figure Description

[0013] Figure 1 This is a flowchart of a preferred embodiment of a method for improving energy accumulation on the surface of a covering film provided by the present invention. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] This invention provides a method for improving energy accumulation on the surface of a covering film, see [link to relevant documentation]. Figure 1 The diagram shown is a flowchart of a preferred embodiment of a method for improving energy accumulation on the surface of a covering film provided by the present invention. The method includes steps S11 to S13:

[0016] Step S11: Add the pre-prepared biodegradable material to dimethylformamide solvent, stir evenly, and obtain a biodegradable material solution;

[0017] Step S12: Immerse the polyimide covering film in the biodegradable substance solution.

[0018] Step S13: After the preset soaking time, remove the polyimide cover film and dry it.

[0019] In practice, a biodegradable material is first prepared and then added to an appropriate amount of dimethylformamide solvent and stirred evenly to obtain a biodegradable material solution. The polyimide covering film is then placed into the obtained biodegradable material solution and fully immersed. After a preset immersion time, the polyimide covering film is removed from the biodegradable material solution and dried, for example, by baking or air drying.

[0020] It should be noted that the embodiments of the present invention use biodegradable substances to treat the polyimide cover film, which will not cause any chemical damage to the polyimide cover film. At the same time, it can effectively improve the surface energy accumulation of the polyimide cover film, making it easier to coat, print and interface adhesion. It also has the characteristics of low cost (economic) and environmental protection, which is conducive to large-scale production and application.

[0021] In one alternative embodiment, the biodegradable material comprises the following components in parts by weight: 15 parts PBST, 80 parts polylactic acid, 4 parts adhesive, and 1 part surfactant.

[0022] Specifically, in conjunction with the above embodiments, the biodegradable material used in the embodiments of the present invention is mainly composed of PBST (polybutylene succinate-co-butylene terephthalate), polylactic acid, adhesive and surfactant, and each component by weight includes: 15 parts of PBST, 80 parts of polylactic acid, 4 parts of adhesive and 1 part of surfactant.

[0023] It should be noted that the main function of PBST is toughening modification, and it has practical application value.

[0024] It should be noted that the biodegradable substances used in the embodiments of the present invention are made from readily available raw materials and are reasonably designed.

[0025] In one optional embodiment, the concentration of the biodegradable substance solution is 5-8%.

[0026] Specifically, in conjunction with the above embodiments, the concentration range of the biodegradable substance solution used in the embodiments of the present invention is 5% to 8%, that is, the pre-prepared biodegradable substance is added to an appropriate amount of dimethylformamide solvent and stirred evenly to obtain a biodegradable substance solution with a concentration range of 5% to 8%.

[0027] For example, the concentration of the biodegradable substance solution can be 5%, 6%, 7% or 8%, and can also be set according to actual needs. This embodiment of the invention does not impose specific limitations.

[0028] In one alternative embodiment, the soaking time is 8 to 12 hours.

[0029] Specifically, in conjunction with the above embodiments, after the polyimide covering film is placed in the obtained biodegradable substance solution, the polyimide covering film is soaked in the biodegradable substance solution for 8 to 12 hours. That is, after soaking for 8 to 12 hours, the polyimide covering film is taken out of the biodegradable substance solution and then dried.

[0030] For example, the soaking time can be 8 hours, 8 hours 10 minutes, 8 hours 20 minutes, 8 hours 30 minutes, 8 hours 40 minutes, 8 hours 50 minutes, 9 hours, 9 hours 10 minutes, 9 hours 20 minutes, 9 hours 30 minutes, 9 hours 40 minutes, 9 hours 50 minutes, 10 hours, 10 hours 10 minutes, 10 hours 20 minutes, 10 hours 30 minutes, 10 hours 40 minutes, 10 hours 50 minutes, 11 hours, 11 hours 10 minutes, 11 hours 20 minutes, 11 hours 30 minutes, 11 hours 40 minutes, 11 hours 50 minutes, or 12 hours. It can also be set according to actual needs. This embodiment of the invention does not impose specific limitations.

[0031] Based on all the above embodiments, the implementation process of this solution is described below through the first specific embodiment, including: (1) Pre-preparing a biodegradable material, including the following components by weight: 15 parts PBST, 80 parts polylactic acid, 4 parts adhesive, and 1 part surfactant; (2) Adding the pre-prepared biodegradable material to an appropriate amount of dimethylformamide solvent and stirring evenly to obtain a biodegradable material solution with a concentration of 5%; (3) Placing the polyimide covering film into the obtained biodegradable material solution and immersing it fully; (4) After immersion for 12 hours, removing the polyimide covering film from the biodegradable material solution and drying the polyimide covering film, for example, by baking or air drying.

[0032] Based on all the above embodiments, the implementation process of this solution is described below through a second specific embodiment, including: (1) Pre-preparing a biodegradable material, including the following components by weight: 15 parts PBST, 80 parts polylactic acid, 4 parts adhesive, and 1 part surfactant; (2) Adding the pre-prepared biodegradable material to an appropriate amount of dimethylformamide solvent and stirring evenly to obtain a biodegradable material solution with a concentration of 7%; (3) Placing the polyimide covering film into the obtained biodegradable material solution and immersing it fully; (4) After immersion for 10 hours, removing the polyimide covering film from the biodegradable material solution and drying the polyimide covering film, for example, by baking or air drying.

[0033] Based on all the above embodiments, the implementation process of this solution is described below through a third specific embodiment, including: (1) Pre-preparing a biodegradable material, including the following components by weight: 15 parts PBST, 80 parts polylactic acid, 4 parts adhesive, and 1 part surfactant; (2) Adding the pre-prepared biodegradable material to an appropriate amount of dimethylformamide solvent and stirring evenly to obtain a biodegradable material solution with a concentration of 8%; (3) Placing the polyimide covering film into the obtained biodegradable material solution and immersing it fully; (4) After immersion for 8 hours, removing the polyimide covering film from the biodegradable material solution and drying the polyimide covering film, for example, by baking or air drying.

[0034] In summary, the method for improving energy accumulation on the surface of a cover film provided by this invention involves first adding a pre-prepared biodegradable material to a dimethylformamide solvent and stirring until homogeneous to obtain a biodegradable material solution with a concentration range of 5% to 8%; then immersing the polyimide cover film in the biodegradable material solution; after immersion for 8 to 12 hours, removing the polyimide cover film and drying it. This invention, by using a biodegradable material to treat the polyimide cover film, does not cause any chemical damage to the polyimide cover film, while effectively improving the energy accumulation on the surface of the polyimide cover film, making it easier to coat, print, and interface adhere. Furthermore, it is low-cost (economical) and environmentally friendly, which is beneficial for large-scale production applications.

[0035] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for improving energy accumulation on the surface of a covering film, characterized in that, include: The pre-prepared biodegradable material is added to dimethylformamide solvent and stirred evenly to obtain a biodegradable material solution. The polyimide covering film was immersed in the biodegradable substance solution for treatment. After the preset soaking time, the polyimide cover film is removed and dried.

2. The method for improving energy concentration on the surface of a covering film as described in claim 1, characterized in that, The biodegradable material comprises the following components by weight: 15 parts PBST, 80 parts polylactic acid, 4 parts adhesive, and 1 part surfactant.

3. The method for improving energy concentration on the surface of a covering film as described in claim 1, characterized in that, The concentration of the biodegradable substance solution is 5-8%.

4. The method for improving energy concentration on the surface of a covering film as described in claim 1, characterized in that, The soaking time is 8 to 12 hours.

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