CN220935943U - Full-biodegradation composite mulch film - Google Patents
Full-biodegradation composite mulch film Download PDFInfo
- Publication number
- CN220935943U CN220935943U CN202323022275.9U CN202323022275U CN220935943U CN 220935943 U CN220935943 U CN 220935943U CN 202323022275 U CN202323022275 U CN 202323022275U CN 220935943 U CN220935943 U CN 220935943U
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- China
- Prior art keywords
- film layer
- pla
- mulch
- starch
- mulch film
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- 239000002362 mulch Substances 0.000 title claims abstract description 54
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000006065 biodegradation reaction Methods 0.000 title description 4
- 229920002472 Starch Polymers 0.000 claims abstract description 25
- 235000019698 starch Nutrition 0.000 claims abstract description 25
- 239000008107 starch Substances 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 19
- 239000003337 fertilizer Substances 0.000 claims abstract description 11
- 239000002985 plastic film Substances 0.000 claims description 7
- 229920006255 plastic film Polymers 0.000 claims description 7
- 230000015556 catabolic process Effects 0.000 claims description 6
- 238000006731 degradation reaction Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 abstract 5
- 239000004626 polylactic acid Substances 0.000 abstract 5
- 239000002689 soil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004720 fertilization Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
Landscapes
- Protection Of Plants (AREA)
Abstract
The utility model provides a full-biodegradable composite mulch film, which relates to the field of degradable mulch films and comprises a PLA (polylactic acid) mulch film layer, wherein a reinforcing rib net is arranged at the bottom of the PLA mulch film layer, a fertilizer layer is adhered to the bottom of the PLA mulch film layer, and a starch mulch film layer is adhered to the PLA mulch film layer through the reinforcing rib net.
Description
Technical Field
The utility model relates to the field of degradable mulching films, in particular to a full-biodegradable composite mulching film.
Background
The film is a ground covering film, and is used for ground covering to improve soil temperature, maintain soil moisture, maintain soil structure, prevent pests from invading crops and diseases caused by certain microorganisms, and promote plant growth.
The existing mulch films cannot be degraded after being used, the mulch films cannot be broken after being used and are difficult to clean, a large amount of manpower is required to be input for film raking operation, even so, the residual films cannot be cleaned up completely from the soil, the accumulation amount of the residual films in the soil is increased year by year, and therefore the pollution of farmland soil is caused, and therefore the degradable mulch films are used for solving the pollution to the soil, but after the mulch films are placed, secondary fertilization cannot be carried out on plants covered by the films, the nutrition supply of the plants is affected, and the physical and chemical characteristics of the mulch film materials determine that the plants covered by the poor tensile strength of the mulch films are easy to tear in the extending process, so that the subsequent use effect is affected.
Disclosure of utility model
The utility model aims to solve the following problems in the prior art:
When the mulch film is placed, secondary fertilization cannot be carried out on the plants covered by the mulch film, nutrition supply of the plants is affected, and the physical and chemical properties of the mulch film material determine that the plants covered by the mulch film with poor tensile strength easily cause tearing of the mulch film in the extending process, so that the subsequent use effect is affected.
In order to solve the problems in the prior art, the utility model provides a full-biodegradation composite mulch film, which comprises a PLA mulch film layer, wherein a reinforcing rib net is arranged at the bottom of the PLA mulch film layer, a fertilizer layer is adhered to the bottom of the PLA mulch film layer, and a starch mulch film layer is adhered to the PLA mulch film layer through the reinforcing rib net.
The utility model provides a full-biodegradation composite mulch film.
Further, the PLA-type mulching film layer is a PLA-type biodegradable mulching film, the thickness of the PLA-type biodegradable mulching film layer is larger than that of the starch mulching film layer, and the degradation time is six to eight months.
Further, the starch mulch layer is a starch ester biodegradable mulch, and the degradation time is three to six months.
Furthermore, the reinforcing rib net is a rectangular net structure made of the same material as the PLA mulching film layer, and the thickness of the reinforcing rib net is the same as that of the starch mulching film layer.
Furthermore, the reinforcing rib net separates a plurality of rectangular cavities between the bottom of the PLA mulching film layer and the starch mulching film layer, and the fertilizer layer is arranged in each rectangular cavity.
Compared with the prior art, the invention has the beneficial effects that:
According to the utility model, the reinforcing rib net is arranged at the bottom of the PLA-type mulching film layer to ensure that the whole mulching film has higher tensile strength, the starch mulching film layer is arranged at the bottom of the PLA-type mulching film layer through the reinforcing rib net, and the fertilizer layer is arranged in the cavity part between the starch mulching film layer and the starch mulching film layer.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is an exploded view of the present utility model;
Reference numerals: 1. PLA-type mulching film layers; 2. a reinforcing rib net; 3. a fertilizer layer; 4. and (3) a starch mulch film layer.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.
Specific embodiments of the present utility model are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-3, a full-biodegradable composite mulch film comprises a PLA-type mulch film layer 1, wherein a reinforcing rib net 2 is arranged at the bottom of the PLA-type mulch film layer 1, a fertilizer layer 3 is adhered to the bottom of the PLA-type mulch film layer 1, a starch mulch film layer 4 is adhered to the PLA-type mulch film layer 1 through the reinforcing rib net 2, the PLA-type mulch film layer 1 is a PLA-type biodegradable mulch film, the thickness of the PLA-type mulch film layer 1 is greater than that of the starch mulch film layer 4 and the degradation time is six to eight months, the starch mulch film layer 4 is a starch ester biodegradable mulch film, the degradation time is three to six months, the reinforcing rib net 2 is of a rectangular net-shaped structure made of the same material as the PLA-type mulch film layer 1, the thickness of the reinforcing rib net 2 is the same as that of the starch mulch film layer 4, a plurality of rectangular cavities are separated between the bottom of the PLA-type mulch film layer 1 and the starch mulch film layer 4, and the fertilizer layer 3 is arranged in each rectangular cavity.
Description of working principle: firstly, when the plastic film is used, the plastic film is covered at a required position, the tensile strength of the whole structure is increased by the reinforcing rib net 2 in the covering process, the starch plastic film layer 4 at the bottom of the plastic film is degraded firstly, and the covered fertilizer layer 3 is exposed after the starch plastic film layer 4 starts to be degraded, so that the fertilizer layer 3 is slowly released to act on plants, and the plants can be ensured to obtain enough nutrient substances.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The full-biodegradable composite mulch comprises a PLA mulch layer (1), and is characterized in that: the bottom of the PLA-type mulching film layer (1) is provided with a reinforcing rib net (2), the bottom of the PLA-type mulching film layer (1) is adhered with a fertilizer layer (3), and the PLA-type mulching film layer (1) is adhered with a starch mulching film layer (4) through the reinforcing rib net (2).
2. The fully biodegradable composite mulch according to claim 1, wherein: the PLA-type mulching film layer (1) is a PLA-type biodegradable mulching film, the thickness of the PLA-type biodegradable mulching film is larger than that of the starch mulching film layer (4), and the degradation time is six to eight months.
3. The fully biodegradable composite mulch according to claim 1, wherein: the starch mulch layer (4) is a starch ester biodegradable mulch, and the degradation time is three to six months.
4. The fully biodegradable composite mulch according to claim 1, wherein: the reinforcing rib net (2) is of a rectangular net structure made of the same material as the PLA-type mulching film layer (1), and the thickness of the rectangular net structure is the same as that of the starch mulching film layer (4).
5. The fully biodegradable composite mulch according to claim 1, wherein: a plurality of rectangular cavities are separated between the bottom of the PLA plastic film layer (1) and the starch plastic film layer (4) by the reinforcing rib net (2), and the fertilizer layer (3) is arranged in each rectangular cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323022275.9U CN220935943U (en) | 2023-11-09 | 2023-11-09 | Full-biodegradation composite mulch film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323022275.9U CN220935943U (en) | 2023-11-09 | 2023-11-09 | Full-biodegradation composite mulch film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220935943U true CN220935943U (en) | 2024-05-14 |
Family
ID=91015441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323022275.9U Active CN220935943U (en) | 2023-11-09 | 2023-11-09 | Full-biodegradation composite mulch film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220935943U (en) |
-
2023
- 2023-11-09 CN CN202323022275.9U patent/CN220935943U/en active Active
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| GR01 | Patent grant |