Multifunctional anti-freezing degradable agricultural mulching film

Abstract

The utility model discloses a multifunctional anti-freezing degradable agricultural mulching film, which relates to the technical field of agricultural mulching films and comprises a middle film, side films are arranged on two sides of the middle film, a plurality of groups of mosquito repelling grooves are arranged on the upper surfaces of the side films, insect repelling liquid is added into the mosquito repelling grooves, volatile barriers are formed after the insect repelling liquid is vaporized, and the mosquito repelling liquid can repel mosquitoes. Pests on the surface of the mulching film and around the mulching film are directly repelled, the insect pest density is reduced, only a trace amount of insect repelling liquid is needed to take effect through vaporization diffusion, large-area spraying of traditional pesticides is avoided, and chemical pollution is reduced. Meanwhile, the reflective material reflects light to interfere the flight path of phototaxis pests, so that the possibility that the phototaxis pests get close to crops is reduced, the pest expelling effect can be achieved, and the problem that the mulching film is extremely prone to being bitten and rotten by the pests is avoided. Volatilization rate of the insect repellent liquid is controlled through the hydrophobic breathable film, slow vaporization of liquid in the mosquito repellent groove is ensured, effective period is prolonged, non-vaporized liquid is prevented from flowing out, waste and soil pollution are avoided, and the waterproof layer prevents loss of the insect repellent liquid caused by rain wash.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural mulching film technical field, concretely relates to a multifunctional anti-freezing degradable agricultural mulching film. BACKGROUND

[0002] The functions of the agricultural mulching film cover, such as temperature increase, soil conservation and frost prevention, in the early 1950s, Japan first promoted and applied the mulching film cover cultivation technology, and China introduced the technology from Japan in 1978. The application of the mulching film cover cultivation technology greatly improves the crop yield and promotes the development of China's agriculture, and the use of plastic mulching film is therefore called a "white revolution" in agricultural production. The coverage of the mulching film makes the planting area move north by 3-5 latitudes, and makes the crops generally increase by 30%-50% and increase by 40%-60%, and the full-biodegradable agricultural mulching film is made of degradable materials.

[0003] The traditional full-biodegradable agricultural mulching film is usually directly covered on the ground during use, which has the effects of temperature preservation and moisture preservation, but cannot drive insects, so that the mulching film is easily bitten by insects, which affects the service life of the mulching film, therefore, the utility model designs a multifunctional anti-freezing degradable agricultural mulching film to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model solves the technical problems by adopting the technical scheme of a multifunctional anti-freezing degradable agricultural mulching film, which comprises a middle film, and side films are arranged on both sides of the middle film; the side films are arranged on both sides of the middle film, and the bottoms of the side films on both sides can be in contact with the soil to realize fixed positioning. The middle film and the side films are both biodegradable films, and the biodegradable films can realize controllability of the degradable mulching film by adjusting the proportion of the material formula according to the requirements of different crop growth periods and degradation induction periods, and under the action of natural conditions such as microorganisms, oxygen and light, the biodegradable films are gradually decomposed into fine powder after completing the functions of temperature preservation and weeding for crops, until the biodegradable films are completely degraded into water and carbon dioxide, and the harmlessness to the farmland environment is realized.

[0005] The upper surface of the middle film is provided with a groove, the inner surface of the middle film is provided with an insertion rod, the bottom of the side film away from the middle film is provided with a thickened protrusion, the upper surface of the side film is provided with a lotus leaf texture, the upper surface of the side film is provided with a positioning hole, the upper surface of the side film is provided with a mosquito repelling groove, and the inner surface of the side film is provided with a mounting hole. A plurality of groups of side films are arranged, and the mounting hole is connected with the insertion rod of the middle film, the plurality of modules are individually replaced and used when local damage occurs, and the service life of the whole is prolonged, the thickened protrusion is embedded in the soil area of the windward surface in the frozen area, external force impact can be dispersed, the edge of the mulch is prevented from being easily torn when laying, covering soil or being subjected to wind force, and the problem of light and thin degradable design is maintained in other areas, local optimization of frost resistance and degradation is realized, the positioning hole can be used in cooperation with the ground nail, a plurality of fixed points with the soil are formed, and the overall firmness is improved. The lotus leaf texture simulates the hydrophobic structure of lotus leaves, reduces water retention, reduces the probability of icing, and avoids the problem of local icing leading to brittle fracture of the mold.

[0006] The main mold and the side film are biodegradable films, the middle film and the side film are designed as a layered structure, the middle film is a white film, the side film is a black mold, and the middle film and the side film are connected together by the insertion rod and the mounting hole. The middle film is a planting area, does not affect the growth of plants, and the side film can prevent light and inhibit the growth of grass, and covering is carried out according to planting requirements.

[0007] Further, the middle film and the side film are composed of an ultraviolet-resistant coating, a honeycomb layer and a degradable layer from top to bottom. The honeycomb structure can enhance the pressure resistance and crack resistance at low temperature, and the porous degradable layer can accelerate the attachment and decomposition of microorganisms on the soil contact surface.

[0008] Further, the ultraviolet-resistant coating is a hydrophobic structure, and the degradable layer is a porous shape.

[0009] Further, the mosquito repelling groove is composed of a waterproof layer and a hydrophobic and breathable film.

[0010] Further, the waterproof layer is installed on the inner wall of the mosquito repelling groove.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. The utility model discloses a plurality of mosquito repelling grooves are arranged on the upper surface of the side film, and a pest repellent liquid is added in the mosquito repelling groove, the pest repellent liquid forms a volatile barrier after vaporization, directly drives the pests on the surface of the mulch and around, reduces the pest density, the pest repellent liquid diffuses through vaporization, only a small amount is needed to take effect, avoids large-area spraying of traditional pesticides, and reduces chemical pollution, meanwhile, the light reflection material reflects light, interferes with the flight path of phototactic pests, reduces the approach to crops, can play the effect of pest repelling, and avoids the problem that the mulch is easily bitten and torn by pests.

[0013] 2. This utility model controls the evaporation rate of the insect repellent liquid through a hydrophobic and breathable membrane, ensuring that the liquid in the mosquito repellent tank slowly vaporizes, extending the effective period, while preventing the outflow of unvaporized liquid, avoiding waste and soil pollution; the waterproof layer prevents rainwater from washing away the insect repellent liquid, and can maintain its function in both sunny and rainy weather. One application can achieve long-term insect repellency without the need for frequent re-spraying of pesticides.

[0014] 3. This utility model divides the mulch film into splicable side films and a middle film. The edges are connected by an insertion rod and a mounting hole structure, allowing for individual replacement in case of local damage, thus extending the overall service life. The thickened protruding design can be embedded in the soil, enhancing the adhesion between the mulch film and the ground, preventing strong winds from lifting the mulch film. This is particularly effective in windy areas or open-field planting, further preventing the edges of the mulch film from tearing under stress during laying, covering with soil, or exposure to wind.

[0015] 4. This utility model, through the combined action of thickened protrusions, positioning holes, and ground nails, can achieve multi-point fixation of the mulch film to the ground, improving the overall firmness. Traditional mulch film edges are prone to curling due to thermal expansion and contraction or external force. The structure of the thickened protrusions and the combination of positioning holes can suppress curling and keep the coverage flat.

[0016] 5. The present invention has a lotus leaf texture on the surface of the side film, which reduces water retention, helps drainage, reduces adhesion after freezing, further reduces the probability of freezing, and avoids the problem of mold body cracking caused by local freezing.

[0017] 6. This utility model uses a functional gradient to layer the overall material of the mulch film. The surface layer is an anti-ultraviolet coating that blocks ultraviolet radiation, slows down the aging of the mulch film, and extends its service life. The middle layer has a honeycomb structure to disperse stress, enhance the pressure and impact resistance at low temperatures, and prevent freezing cracking. The bottom layer is a porous biodegradable layer. The porous structure increases the contact area with the soil, promotes microbial colonization, and accelerates the rate of biodegradation. Therefore, the functional gradient layered design achieves a long-life, low-pollution, and highly adaptable agricultural mulch film through a synergistic mechanism of anti-aging, pressure resistance, and rapid degradation. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a utility model Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the insertion rod of this utility model;

[0022] Figure 5 is the utility model Figure 3 is the enlarged view of C in the middle;

[0023] Figure 6 is the structure diagram of the waterproof layer of the utility model.

[0024] In the figure: 1, the middle film; 101, the groove; 102, the inserted rod; 2, the side film; 21, the thickened protrusion; 22, the lotus texture; 23, the positioning hole; 24, the mosquito repellent groove; 241, the waterproof layer; 242, the hydrophobic breathable film; 25, the mounting hole; 201, the ultraviolet resistant coating; 202, the honeycomb layer; 203, the degradation layer. DETAILED DESCRIPTION

[0025] The utility model will be further explained in detail in combination with the drawings and specific embodiments. The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

[0026] Embodiment one:

[0027] Please refer to Figure 1 - Figure 6 The utility model provides a technical scheme: a multifunctional anti-freezing degradable agricultural mulching film, including middle film 1, both sides of middle film 1 are provided with side film 2;Side film 2 is arranged at both sides of middle film 1, and the bottom of the two sides of side film 2 can be in contact with soil and realize certain fixed positioning. Middle film 1 and side film 2 are both biodegradable films, according to the requirements of different crop growth periods and different degradation induction periods, the controllability of degradable mulching film is realized by using the proportion of material formula, under the action of natural conditions such as microorganism, oxygen and light, after completing the functions such as heat preservation and weeding for crops, gradually decomposes into fine powder, until complete degradation into water and carbon dioxide, realizing harmlessness to farmland environment.

[0028] The upper surface of the middle film 1 is provided with a groove 101, and the inner surface of the middle film 1 is provided with an insertion rod 102. The bottom of the side film 2 away from the middle film 1 is provided with a thickened protrusion 21. The upper surface of the side film 2 is provided with a lotus texture 22. The upper surface of the side film 2 is provided with a positioning hole 23. The upper surface of the side film 2 is provided with a mosquito-repelling groove 24. The inner surface of the side film 2 is provided with a mounting hole 25. The number of side films 2 is provided with multiple groups, which are connected with the insertion rod 102 of the middle film 1 through the mounting hole 25. When the local damage of the multiple modules occurs, the modules can be replaced and used separately, prolonging the service life of the whole. The thickened protrusion 21 is embedded in the soil area of the windward surface in the frozen area, which can disperse external force impact and avoid the problem that the mulch edge is easily torn when laying, covering soil or working under wind force. In other areas, the design is light and degradable, realizing the local optimization of frost resistance and degradation. At the same time, the positioning hole 23 can be used with the ground nail to form multiple fixed points with the soil, improving the overall firmness. The existence of the lotus texture 22 simulates the hydrophobic structure of lotus leaves, reduces water retention, reduces the probability of icing, avoids the problem of local icing leading to brittle fracture of the module, and has certain frost resistance.

[0029] The main module and the side film 2 are both biodegradable films. The middle film 1 and the side film 2 are designed as a layered structure. The middle film 1 is a white film, and the side film 2 is a black film. The edges of the middle film 1 and the side film 2 are connected together through the insertion rod 102 and the mounting hole 25. The middle film 1 is a planting area, which does not affect the growth of plants. The side film 2 can prevent light and inhibit the growth of grass. The mulch is covered according to the planting requirements.

[0030] The middle film 1 and the side film 2 are composed of an ultraviolet-resistant coating 201, a honeycomb layer 202 and a degradable layer 203 from top to bottom. The honeycomb structure can enhance the pressure resistance and crack resistance at low temperature, and the porous degradable layer 203 can accelerate the attachment and decomposition of microorganisms on the soil contact surface.

[0031] The ultraviolet-resistant coating 201 is a hydrophobic structure, and the degradable layer 203 is a porous shape.

[0032] The mosquito-repelling groove 24 is composed of a waterproof layer 242 and a hydrophobic and breathable film 241. The number of mosquito-repelling grooves 24 is provided with multiple groups.

[0033] The waterproof layer 241 is installed on the inner wall of the mosquito-repelling groove 24.

[0034] Working principle: when used, the middle film 1 and the side film 2 are both biodegradable films. According to the requirements of different crop growth periods and different degradation induction periods, the controllability of the degradable mulch is realized by using the proportion of material formula. Under the action of natural conditions such as microorganisms, oxygen and light, after completing the functions of heat preservation and weeding for crops, it is gradually decomposed into fine powder until it is completely degraded into water and carbon dioxide, realizing the harmlessness to the farmland environment.

[0035] The middle film 1 is a white film, which is a planting area and does not affect the growth of the plants, and the side film 2 is a black film, which can prevent light and inhibit the growth of grass, and the side film 2 is connected with the middle film 1 through the cooperation of the insertion rod 102 inside the middle film 1 and the positioning hole 23 inside the side film 2, that is, the insertion rod 102 is inserted into the inside of the positioning hole 23, so that the connection and fixation between the multiple side films 2 and the middle film 1 are realized, and then the whole mulch film is laid on the ground, and the mulch film and the ground are fixed through the cooperation of the positioning hole 23 and the ground nail, so that the overall firmness is improved.

[0036] The thickened protrusion 21 is embedded in the soil area of the windward surface in the frozen area, which can disperse external force impact and avoid the problem that the edge of the mulch film is easily torn when the mulch film is laid, covered with soil or subjected to wind force.

[0037] The lotus leaf texture 22 on the surface of the side film 2 imitates the lotus leaf hydrophobic structure, reduces water retention, helps drainage, reduces the adhesion after icing, further reduces the icing probability, and avoids the problem that local icing leads to brittle fracture of the mold.

[0038] The whole mulch film, that is, the middle film 1 and the side film 2, is a functional gradient layer, which is a multi-layer heterogeneous structure, and each layer has a division of labor and cooperation, the surface layer is an anti-ultraviolet coating 201, which is a hydrophobic structure, the middle layer is a honeycomb structure, which enhances the compression and crack resistance at low temperature, and the bottom layer is a porous degradable layer 203, which contacts the soil surface and accelerates the attachment and decomposition of microorganisms.

[0039] When the mulch film is laid on the ground, the sunlight is irradiated to the mulch film body, so that the insect repellent liquid in the insect repellent groove 24 is vaporized to drive away the insects on the surface of the mulch film body, prevent the insects from invading the mulch film body and the crops planted, and achieve the effect of insect repellent. The hydrophobic and breathable film 241 can prevent the unvaporized insect repellent liquid in the insect repellent groove 24 from flowing out, and can control the volatilization rate of the insect repellent liquid, so as to ensure that the liquid in the insect repellent groove is slowly vaporized and the effective period is prolonged. Some light-reflecting materials can be sprayed on the inner surface of the insect repellent groove 24, which can interfere with the flight path of insects by reflecting light, and avoid phototactic pests such as aphids. The outer layer is a waterproof layer 242, which prevents rainwater from washing away the insect repellent liquid and losing the function, and can maintain the function in sunny and rainy weather, so that long-term insect repellent can be achieved by one-time laying, and frequent pesticide spraying is not required.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A multifunctional antifreeze and biodegradable agricultural mulch film, comprising a middle film (1), characterized in that: The middle membrane (1) is provided with side membranes (2) on both sides; The upper surface of the middle membrane (1) is provided with a groove (101), the inner surface of the middle membrane (1) is provided with an insertion rod (102), the bottom of the side membrane (2) away from the middle membrane (1) is provided with a thickened protrusion (21), the upper surface of the side membrane (2) is provided with a lotus leaf texture (22), the upper surface of the side membrane (2) is provided with a positioning hole (23), the upper surface of the side membrane (2) is provided with a mosquito repellent groove (24), and the inner surface of the side membrane (2) is provided with an installation hole (25).

2. The multifunctional antifreeze biodegradable agricultural mulch film according to claim 1, characterized in that: Both the middle membrane (1) and the side membrane (2) are biodegradable membranes. Both the middle membrane (1) and the side membrane (2) are designed with a layered structure. The middle membrane (1) is a white membrane, and the side membrane (2) is a black membrane. The edges of the middle membrane (1) and the side membrane (2) are connected to each other by inserting a rod (102) and mounting holes (25).

3. The multifunctional antifreeze biodegradable agricultural mulch film according to claim 2, characterized in that: The middle membrane (1) and the side membrane (2) are composed of an anti-ultraviolet coating (201), a honeycomb layer (202) and a degradation layer (203) from top to bottom.

4. The multifunctional antifreeze biodegradable agricultural mulch film according to claim 3, characterized in that: The UV-resistant coating (201) has a hydrophobic structure, and the degradation layer (203) has a porous shape.

5. The multifunctional antifreeze biodegradable agricultural mulch film according to claim 1, characterized in that: The mosquito repellent groove (24) is composed of a waterproof layer (241) and a hydrophobic and breathable membrane (242).

6. The multifunctional antifreeze biodegradable agricultural mulch film according to claim 5, characterized in that: The waterproof layer (241) is installed on the inner wall of the mosquito repellent groove (24).

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