Biodegradable mulching film with pesticide slow release function
By incorporating a multi-layered structure and reflective coating into the biodegradable mulch film, the release rate of pesticides is controlled, solving the problem of excessively rapid pesticide volatilization and achieving a slow-release effect, thus ensuring crop yield and environmental protection.
Patent Information
- Application Number
- CN202423257930.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing biodegradable mulch films with slow-release pesticide function have pesticides that evaporate too quickly, failing to effectively control pests and diseases, leading to reduced crop yields.
By setting up a multi-layer structure in the mulch film, including a top layer, a middle layer, a flow-guiding layer, and a permeable layer, the release rate of pesticides is controlled by using pores and grooves. A reflective coating is set on the top layer to reduce the temperature. Combined with the use of polycaprolactone and polyhydroxyalkanoate materials, a slow-release effect is achieved.
It extends the action time of pesticides, effectively curbs the invasion of pests and diseases, ensures crop yields, and reduces environmental pollution.
Smart Images
Figure CN223600492U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the biodegradable mulching film technical field, concretely is a kind of biodegradable mulching film with pesticide slow-release function. BACKGROUND
[0002] The biodegradable mulching film with pesticide slow-release function is a new agricultural material, which is made of degradable material, and the biodegradable mulching film can store pesticides sprayed on its surface, and then the pesticides on the biodegradable mulching film can be slowly released within a certain period of time through a special structure, which reduces the use amount of pesticides, reduces the pollution to the environment, and can be naturally degraded after use without remaining in the soil.
[0003] The existing biodegradable mulching film with pesticide slow-release function sprays pesticides on its surface, and the volatilization speed of the pesticides is fast, which shortens the action time of the pesticides and cannot effectively prevent the invasion of pests and diseases, resulting in reduced yield of crops. SUMMARY
[0004] The utility model discloses a kind of biodegradable mulching films with pesticide slow-release function, which can slow down the release speed of pesticides, thereby prolonging the action time of pesticides, effectively preventing the invasion of pests and diseases, to ensure the yield of crops.
[0005] To achieve the above object, the utility model adopts the technical scheme of providing a biodegradable mulching film with pesticide slow-release function, comprising a mulching film top layer, a plurality of second holes are formed in the mulching film top layer, a mulching film middle layer is fixedly connected to the lower surface of the mulching film top layer, a plurality of first holes are formed in the mulching film middle layer, the first holes are in communication with the second holes, a mulching film flow guide layer is fixedly connected to the lower surface of the mulching film middle layer, the mulching film flow guide layer is provided with a first flow guide layer and a second flow guide layer, the first flow guide layer is fixedly connected to the lower end of the mulching film middle layer, a plurality of third holes are formed in the first flow guide layer, the third holes are in communication with the first holes, the second flow guide layer is fixedly connected to the lower end of the first flow guide layer, a plurality of long grooves are formed in the second flow guide layer, the long grooves are in communication with the third holes, a fourth hole is formed in one end of the long groove away from the third hole, and a mulching film permeation layer is fixedly connected to the lower surface of the mulching film flow guide layer.
[0006] Optionally, the upper surface of the mulching film top layer is provided with a reflective coating.
[0007] Optionally, the size of the first hole is larger than that of the third hole and the second hole.
[0008] Optionally, the length of the long groove is ten centimeters.
[0009] Optionally, the material of the mulching film permeation layer is polycaprolactone.
[0010] Optionally, the mulch top layer, the mulch flow guide layer and the mulch middle layer are all made of polyhydroxyalkanoate.
[0011] Compared with the prior art, the utility model has the advantages of:
[0012] The utility model discloses a mulch middle layer can prevent the volatilization speed of pesticide from being too fast because of the temperature being too high, and through setting up the mulch flow guide layer, the release speed of pesticide from the mulch middle layer to the mulch flow guide layer is slowed down, and finally the pesticide is released into the soil through the mulch permeation layer. The utility model can slow down the release speed of pesticide, thereby prolonging the action time of pesticide, effectively curbing the invasion of disease and insect pests, and guaranteeing the yield of crops.
[0013] The utility model discloses a reflective coating can reflect sunlight, thereby reducing the internal temperature of the utility model, and further slowing down the volatilization speed of pesticide in the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, other drawings can also be obtained according to these drawings without paying the creative labor.
[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0016] Figure 2 It is the exploded technical structure schematic diagram of the utility model;
[0017] Figure 3 It is the exploded structure schematic diagram of the mulch top layer of the utility model;
[0018] Figure 4 It is the exploded structure schematic diagram of the mulch flow guide layer of the utility model;
[0019] Figure 5 It is the sectional structure schematic diagram of the mulch flow guide layer of the utility model.
[0020] In the drawing: 1, mulch top layer;2, mulch middle layer;3, mulch flow guide layer;301, first flow guide layer;302, second flow guide layer;303, long concave groove;304, fourth hole;4, mulch permeation layer;5, first hole;6, second hole;7, reflective coating;8, third hole. DETAILED DESCRIPTION
[0021] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.
[0022] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0024] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0025] A biodegradable mulch film with pesticide slow-release function provided by the present application embodiment will now be described. The biodegradable mulch film with pesticide slow-release function comprises, from top to bottom, a mulch film top layer 1, a mulch film middle layer 2, a mulch film flow guide layer 3 and a mulch film permeation layer 4.
[0026] Specific, the top layer 1 of mulching film is provided with a plurality of second holes 6, the lower surface of the top layer 1 of mulching film is fixedly connected with the middle layer 2 of mulching film, the middle layer 2 of mulching film is provided with a plurality of first holes 5, the first holes 5 are communicated with the second holes 6, the lower surface of the middle layer 2 of mulching film is fixedly connected with the flow guide layer 3 of mulching film, the flow guide layer 3 of mulching film is provided with a first flow guide layer 301 and a second flow guide layer 302, the first flow guide layer 301 is fixedly connected with the lower end of the middle layer 2 of mulching film, the first flow guide layer 301 is provided with a plurality of third holes 8, the third holes 8 are communicated with the first holes 5, the second flow guide layer 302 is fixedly connected with the lower end of the first flow guide layer 301, the second flow guide layer 302 is provided with a plurality of long recesses 303, the long recesses 303 are communicated with the third holes 8, one end of the long recess 303 away from the third hole 8 is provided with a fourth hole 304, the lower surface of the flow guide layer 3 of mulching film is fixedly connected with the permeation layer 4 of mulching film, and the top layer 1 of mulching film, the middle layer 2 of mulching film, the flow guide layer 3 of mulching film and the permeation layer 4 of mulching film are separately processed and finally extruded together by adhesion.
[0027] Compared with the prior art, the biodegradable mulching film with pesticide slow-release function provided by the utility model can prevent the pesticide from volatilizing too fast due to excessively high temperature by arranging the middle layer 2 of mulching film, and can slow down the speed of the pesticide flowing from the flow guide layer 3 of mulching film to the permeation layer 4 of mulching film by the special flow guide channel in the flow guide layer 3 of mulching film, so that the pesticide is released into the soil through the permeation layer 4 of mulching film, thereby slowing down the release speed of the pesticide.
[0028] Specifically, first, the pesticide is introduced into the first holes 5 on the middle layer 2 of mulching film through the second holes 6 on the top layer 1 of mulching film, the speed of the pesticide flowing from the first holes 5 to the third holes 8 is slowed down due to the size of the third holes 8 being smaller than that of the first holes 5, and the pesticide flows into the long recesses 303 on the second flow guide layer 302 when flowing into the flow guide layer 3 of mulching film, and then flows into the permeation layer 4 of mulching film through the fourth holes 304 in the long recesses 303, and finally is released into the soil through the permeation layer 4 of mulching film at the lower end of the flow guide layer 3 of mulching film.
[0029] In another embodiment of the utility model, please refer to Figures 3 to 5 The upper surface of the top layer 1 of mulching film is provided with a reflective coating 7, the reflective coating 7 is made of titanium dioxide, so that the reflective coating 7 is sprayed on the upper end of the top layer 1 of mulching film to reflect sunlight, thereby reducing the internal temperature of the utility model, and further slowing down the volatilization speed of the pesticide in the utility model.
[0030] In another embodiment of the utility model, please refer to Figure 1 And Figure 2The size of the first hole 5 is larger than the third hole 8 and the second hole 6, so that the pesticide can be stored inside the first hole 5.
[0031] In another embodiment of the present application, please refer to Figure 5 The length of the long groove 303 is ten centimeters, which prolongs the flow time of the pesticide in the second flow layer 302.
[0032] In another embodiment of the present application, please refer to Figures 1 to 4 The material of the mulch permeation layer 4 is polycaprolactone, which has good biocompatibility and degradability, so that the pesticide molecules can slowly permeate under the action of gravity, and the polycaprolactone can be gradually degraded under the action of microorganisms in the soil.
[0033] In another embodiment of the present application, please refer to Figure 5 The material of the mulch top layer 1, the mulch flow layer 3 and the mulch middle layer 2 is all polyhydroxyalkanoate, which can be decomposed by microorganisms, converted into environmentally friendly substances such as water and carbon dioxide, and has little pollution to the environment.
[0034] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A biodegradable mulch film with pesticide slow-release function, characterized in that: The utility model provides a kind of mulch, including mulch top layer (1), a plurality of second holes (6) are opened in the mulch top layer (1), the lower surface of the mulch top layer (1) is fixedly connected with mulch middle layer (2), a plurality of first holes (5) are opened in the mulch middle layer (2), the first hole (5) is communicated with second hole (6), the lower surface of the mulch middle layer (2) is fixedly connected with mulch flow guide layer (3), the mulch flow guide layer (3) is provided with first flow guide layer (301) and second flow guide layer (302), the lower end of the mulch middle layer (2) is fixedly connected with the first flow guide layer (301), a plurality of third holes (8) are opened in the first flow guide layer (301), the third hole (8) is communicated with first hole (5), the lower end of the first flow guide layer (301) is fixedly connected with the second flow guide layer (302), a plurality of long recesses (303) are opened in the second flow guide layer (302), the long recess (303) is communicated with third hole (8), fourth hole (304) is opened in the one end of the long recess (303) away from third hole (8), the lower surface of the mulch flow guide layer (3) is fixedly connected with mulch permeation layer (4).
2. The biodegradable mulch film with pesticide slow-release function as described in claim 1, characterized in that: The upper surface of the mulch top layer (1) is provided with a reflective coating (7).
3. The biodegradable mulch film with pesticide slow-release function as described in claim 1, characterized in that: The size of the first hole (5) is greater than that of the third hole (8) and the second hole (6).
4. The biodegradable mulch film having a slow release function of agricultural chemicals according to Claim 1, wherein: the agricultural chemical is at least one selected from the group consisting of a fungicide, an insecticide, a herbicide, a plant growth regulator, and a fertilizer. 5 The length of the long recess (303) is ten centimeters.
5. The biodegradable mulch film having a slow release function of agricultural chemicals according to Claim 1, wherein: the agricultural chemical is at least one selected from the group consisting of a fungicide, an insecticide, a herbicide, a plant growth regulator, and a fertilizer. 5 The mulch permeation layer (4) is made of polycaprolactone.
6. The biodegradable mulch film having a slow release function of agricultural chemicals according to Claim 1, wherein: the agricultural chemical is at least one selected from the group consisting of a fungicide, an insecticide, a herbicide, a plant growth regulator, and a fertilizer. The mulch top layer (1), the mulch flow guide layer (3) and the mulch middle layer (2) are all made of polyhydroxyalkanoate.