Degradation-controllable environment-friendly functional mulching film

Abstract

The utility model provides a degradable controllable environment-friendly functional mulching film, which comprises a biodegradation layer and a mulching film base layer, the lower surface of the biodegradation layer is fixedly connected with a temperature control layer, the lower surface of the temperature control layer is fixedly connected with a water retention layer, the lower surface of the water retention layer is fixedly connected with a reinforcing layer, and the reinforcing layer is fixedly connected with a plastic film base layer. The upper surface of the mulching film base layer is fixedly connected with a composite functional layer, and the upper surface of the composite functional layer is fixedly connected with the lower surface of the reinforcing layer. According to the degradable controllable environment-friendly functional mulching film, the mulching film is composed of the biodegradation layer, the temperature control layer, the water retention layer, the enhancement layer, the fertilizer slow release layer and the composite functional layer, the temperature control effect is good, heat exchange between the soil surface and external air is effectively reduced, a heat preservation layer is formed, and upward dissipation of soil heat is prevented. In cold winter, the mulching film can prevent cold air from directly influencing the soil, reduce the drop of the soil temperature and keep the soil temperature relatively stable.

Description

Technical Field

[0001] This utility model relates to the field of mulch film technology, and in particular to a degradable and controllable environmentally friendly functional mulch film. Background Technology

[0002] Mulch film, also known as ground cover film, is usually a transparent film, but can also be green or silver. It is used to cover the ground to increase soil temperature, retain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, and promote plant growth.

[0003] Existing biodegradable mulch films have poor temperature control during use. Low soil temperature can affect the absorption capacity of crop roots, leading to poor crop growth and consequently affecting yield, making them unsuitable for crop protection.

[0004] Therefore, it is necessary to provide a new type of degradable, controllable, and environmentally friendly functional mulch film to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a degradable and controllable environmentally friendly functional mulch film, which solves the technical problem that existing biodegradable mulch films have poor temperature control during use. Low soil temperature will affect the absorption capacity of crop roots, which will lead to poor crop growth.

[0006] To solve the above-mentioned technical problems, the present invention provides a degradable and controllable environmentally friendly functional mulch film, comprising a biodegradable layer and a mulch film base layer, wherein a temperature control layer is fixedly connected to the lower surface of the biodegradable layer, a water-retaining layer is fixedly connected to the lower surface of the temperature control layer, and a reinforcing layer is fixedly connected to the lower surface of the water-retaining layer.

[0007] A composite functional layer is fixedly connected to the upper surface of the mulch film base layer, and the upper surface of the composite functional layer is fixedly connected to the lower surface of the reinforcing layer.

[0008] Preferably, the composite functional layer consists of a weeding layer, an insect-repellent layer, and a fertilizer slow-release layer. The weeding layer is fixedly connected to the upper surface of the insect-repellent layer, the fertilizer slow-release layer is fixedly connected to the lower surface of the insect-repellent layer, the upper surface of the weeding layer is fixedly connected to the lower surface of the reinforcing layer, and the lower surface of the fertilizer slow-release layer is fixedly connected to the upper surface of the mulch film base layer.

[0009] Preferably, the base layer of the mulch film is made of polyethylene.

[0010] Preferably, the biodegradable layer is made of polylactic acid.

[0011] Preferably, the biodegradable layer is 6-8 μm in size.

[0012] Preferably, the biodegradable layer is yellowish-gray.

[0013] Compared with related technologies, the biodegradable and environmentally friendly functional mulch film provided by this utility model has the following beneficial effects:

[0014] This invention provides a degradable, controllable, and environmentally friendly functional mulch film. Composed of a biodegradable layer, a temperature-controlling layer, a water-retaining layer, a reinforcing layer, a slow-release fertilizer layer, and a composite functional layer, the mulch film exhibits excellent temperature control, effectively reducing heat exchange between the soil surface and the outside air, forming an insulating layer to prevent upward heat loss from the soil. In cold winters, the mulch film prevents the direct impact of cold air on the soil, reducing soil temperature drop and maintaining a relatively stable soil temperature. A stable soil temperature is beneficial for crop root growth and nutrient absorption, providing a more suitable growing environment for crops. Simultaneously, the mulch film increases soil moisture, providing sufficient water for crops and thus increasing crop yield. Furthermore, the composite functional layer, consisting of a weed-controlling layer, an insect-repellent layer, and a slow-release fertilizer layer, prevents or reduces pest attacks on crops, reduces pesticide use, improves the safety of agricultural products, effectively controls weed growth, reduces competition for nutrients from weeds, and increases crop yield and quality. It also gradually releases nutrients during crop growth, providing continuous and stable nutritional support, significantly improving crop yield. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the biodegradable and controllable environmentally friendly functional mulch film provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the structure of the composite functional layer.

[0017] The diagram is labeled as follows: 1. Biodegradable layer; 2. Temperature control layer; 3. Water retention layer; 4. Reinforcing layer; 5. Slow-release fertilizer layer; 6. Composite functional layer; 7. Mulch film base layer; 8. Weed control layer; 9. Insect control layer. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please refer to the following: Figure 1 and Figure 2 ,in, Figure 1 A schematic diagram of a preferred embodiment of the biodegradable and controllable environmentally friendly functional mulch film provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the composite functional layer. The degradable and controllable environmentally friendly functional mulch film includes a biodegradable layer 1 and a mulch film base layer 7. A temperature control layer 2 is fixedly connected to the lower surface of the biodegradable layer 1, a water-retaining layer 3 is fixedly connected to the lower surface of the temperature control layer 2, and a reinforcing layer 4 is fixedly connected to the lower surface of the water-retaining layer 3.

[0020] A composite functional layer 6 is fixedly connected to the upper surface of the base layer 7, and the upper surface of the composite functional layer 6 is fixedly connected to the lower surface of the reinforcing layer 4.

[0021] The mulch film, composed of a biodegradable layer 1, a temperature-controlling layer 2, a water-retaining layer 3, a reinforcing layer 4, a slow-release fertilizer layer 5, and a composite functional layer 6, exhibits good temperature control, effectively reducing heat exchange between the soil surface and the outside air, forming an insulating layer, and preventing the upward loss of soil heat. In cold winters, the mulch film can prevent the direct impact of cold air on the soil, reducing the drop in soil temperature.

[0022] Maintaining a relatively stable soil temperature is beneficial for crop root growth and nutrient absorption, providing a more suitable growing environment for crops. At the same time, mulch film can also increase soil moisture, providing crops with sufficient water, thereby increasing crop yield.

[0023] The composite functional layer 6 consists of a weeding layer 8, an insect-proof layer 9, and a fertilizer slow-release layer 5. The weeding layer 8 is fixedly connected to the upper surface of the insect-proof layer 9, the fertilizer slow-release layer 5 is fixedly connected to the lower surface of the insect-proof layer 9, the upper surface of the weeding layer 8 is fixedly connected to the lower surface of the reinforcing layer 4, and the lower surface of the fertilizer slow-release layer 5 is fixedly connected to the upper surface of the mulch film base layer 7.

[0024] The composite functional layer 6, consisting of the weed control layer 8, the insect control layer 9, and the fertilizer slow-release layer 5, can prevent or reduce pest attacks on crops, reduce pesticide use, improve the safety of agricultural products, effectively control weed growth, reduce competition for crop nutrients by weeds, improve crop yield and quality, and gradually release nutrients during crop growth to provide continuous and stable nutritional support for crops, thus significantly increasing crop yield.

[0025] The base layer 7 of the mulch film is made of polyethylene, and the biodegradable layer 1 is made of polylactic acid. Polyethylene is a commonly used plastic material in mulch films, with excellent physical properties and chemical stability. The polyethylene layer is responsible for providing the strength, weather resistance and stability of the mulch film, ensuring that the mulch film can maintain a good covering effect during use.

[0026] Polylactic acid (PLA) has excellent biodegradability and can degrade in the natural environment, releasing carbon dioxide and water. Its degradation process does not have a toxic effect on soil and crops. It also has good air permeability and water retention, which helps promote plant growth.

[0027] The biodegradable layer 1 is 6-8 μm in size and is yellowish-gray. The yellowish-gray color utilizes the phototaxis principle of some vegetable pests, which can effectively repel some common pests such as aphids and thrips.

[0028] The working principle of the biodegradable and controllable environmentally friendly functional mulch film provided by this utility model is as follows:

[0029] The mulch film, composed of a biodegradable layer 1, a temperature-controlling layer 2, a water-retaining layer 3, a reinforcing layer 4, a slow-release fertilizer layer 5, and a composite functional layer 6, has a good temperature control effect. It effectively reduces heat exchange between the soil surface and the outside air, forming an insulating layer to prevent heat loss from the soil upwards. In cold winters, the mulch film can prevent the direct impact of cold air on the soil, reducing the drop in soil temperature and maintaining a relatively stable soil temperature. A stable soil temperature is conducive to the growth of crop roots and nutrient absorption, providing a more suitable growing environment for crops. At the same time, the mulch film can also increase soil moisture, providing sufficient water for crops and thus increasing crop yield.

[0030] Compared with related technologies, the biodegradable and environmentally friendly functional mulch film provided by this utility model has the following beneficial effects:

[0031] This invention provides a degradable, controllable, and environmentally friendly functional mulch film. Composed of a biodegradable layer 1, a temperature-controlling layer 2, a water-retaining layer 3, a reinforcing layer 4, a slow-release fertilizer layer 5, and a composite functional layer 6, the mulch film exhibits good temperature control, effectively reducing heat exchange between the soil surface and the outside air, forming an insulating layer to prevent upward heat loss from the soil. In cold winters, the mulch film can prevent the direct impact of cold air on the soil, reducing soil temperature drop and maintaining a relatively stable soil temperature. A stable soil temperature is beneficial for crop root growth and nutrient absorption, providing a more suitable growing environment for crops. Meanwhile, the mulch film can also increase soil moisture, providing sufficient water for crops and thus increasing crop yield. Furthermore, through the composite functional layer 6 consisting of a weeding layer 8, an insect-proof layer 9, and a fertilizer slow-release layer 5, it can prevent or reduce pest attacks on crops, reduce pesticide use, improve the safety of agricultural products, effectively control weed growth, reduce competition for crop nutrients by weeds, and improve crop yield and quality. It can also gradually release nutrients during crop growth, providing continuous and stable nutritional support for crops and effectively increasing crop yield.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A degradable controllable environmental-friendly mulching film, comprising a biodegradable layer (1) and a film base layer (7), characterized in that, The lower surface of the biodegradable layer (1) is fixedly connected with a temperature control layer (2), the lower surface of the temperature control layer (2) is fixedly connected with a water-retaining layer (3), and the lower surface of the water-retaining layer (3) is fixedly connected with a reinforcing layer (4); The upper surface of the mulch base layer (7) is fixedly connected with a composite functional layer (6), and the upper surface of the composite functional layer (6) is fixedly connected with the lower surface of the reinforcing layer (4).

2. The degradable environment-friendly functional mulching film according to claim 1, characterized in that, The composite functional layer (6) is composed of a weeding layer (8), an insect prevention layer (9) and a fertilizer slow-release layer (5), the weeding layer (8) is fixedly connected to the upper surface of the insect prevention layer (9), the fertilizer slow-release layer (5) is fixedly connected to the lower surface of the insect prevention layer (9), the upper surface of the weeding layer (8) is fixedly connected with the lower surface of the reinforcing layer (4), and the lower surface of the fertilizer slow-release layer (5) is fixedly connected with the upper surface of the mulch base layer (7).

3. The degradable controllable environment-friendly functional mulching film according to claim 1, characterized in that, The mulch base layer (7) is made of polyethylene.

4. The degradable environment-friendly functional mulching film according to claim 1, characterized in that, The biodegradable layer (1) is made of polylactic acid.

5. The degradable environment-friendly functional mulching film according to claim 1, characterized in that, The biodegradable layer (1) is 6-8 um.

6. The degradable environment-friendly functional mulching film according to claim 1, characterized in that, The biodegradable layer (1) is yellowish gray.

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