CN210610511U

CN210610511U - Nano agricultural mulching film

Info

Publication number: CN210610511U
Application number: CN201921054659.XU
Authority: CN
Inventors: 李伯良
Original assignee: Henan Zhiyuan Yangguang Technology Co Ltd
Current assignee: Henan Zhiyuan Yangguang Technology Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-05-26
Anticipated expiration: 2029-07-04

Abstract

The utility model relates to a nanometer agricultural mulching film, which comprises a protective layer positioned at the lower layer and a functional layer positioned at the upper layer, wherein black strip-shaped heat preservation layers are arranged on the functional layer at intervals, and the gap between two adjacent heat preservation layers is equal to the width of the heat preservation layers; the soil temperature in the mulching film is adjusted, the black heat-insulating layer is favorable for absorbing heat generated by sunlight irradiation, and compared with the common film, the soil temperature can be increased, so that the early emergence and early development of crops and vegetables are promoted, and the early sowing or early sowing in spring is realized; the illumination is adjusted, and the heat preservation can shelter from the light, and sunshine shines on the crop through the clearance between the heat preservation, and along with the removal of sun, the sunshine shines the angle and changes, avoids the sunlight to shine same department for a long time.

Description

Nano agricultural mulching film

Technical Field

The utility model belongs to the technical field of the plastic film, concretely relates to agricultural plastic film of nanometer.

Background

Mulching film, i.e., ground covering film, is usually a transparent or black PE film, and also has green and silver films, and is used for ground covering to increase the temperature of soil, maintain the moisture of soil, maintain the soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, etc., and promote the growth of plants. The mulch film looks thin but performs considerably. Not only can improve the ground temperature, preserve water, soil and fertilizer and improve the fertilizer efficiency, but also has multiple functions of killing weeds, preventing diseases and insects, preventing drought and waterlogging, inhibiting salt and protecting seedlings, improving the near-ground photo-thermal condition, enabling the product to be sanitary and clean and the like. For the seedlings just coming out of the soil, the fertilizer has the effects of protecting roots, promoting growth and the like. The method has strong pertinence and applicability to factors limiting agricultural development such as low temperature, little rain, drought, poor ridge, short frost-free period and the like in the three north area of China, and plays a role in planting two-season rice seedlings and cultivating various crops. The current mulching film has the following defects: the light transmission is poor, and water mist is easily formed inside and outside the mulching film, so that the light transmission is influenced; in addition, the soil temperature inside the mulching film cannot be adjusted.

Disclosure of Invention

To the not enough that exists among the prior art, the utility model provides an agricultural plastic film of nanometer that the light transmissivity is good, adjusts the inside soil temperature of plastic film.

The technical scheme of the utility model is that: agricultural plastic film of nanometer, including the protective layer that is located the lower floor and the functional layer that is located the upper strata, the interval is provided with the heat preservation of black bar on the functional layer, adjacent two clearance between the heat preservation equals rather than the width.

The heat-insulating layer is a carbon black coating which is coated on the upper surface of the functional layer.

The outer side of the heat-insulating layer is coated with a hydrophobic coating.

The thickness of the heat-insulating layer is 10-30 μm.

The hydrophobic coating has a thickness of 0.01 to 5 μm.

The functional layer is a polyethylene film, and the thickness of the functional layer is 1 to 2 μm.

The protective layer is a polyethylene long-life dripless film, and the thickness of the protective layer is 12-15 mu m.

The width of the heat-insulating layer is 1-5 cm.

A buffer layer is arranged between the functional layer and the protective layer, and the buffer layer is formed by filling air between the functional layer and the protective layer.

The utility model has the advantages that:

(1) the soil temperature in the mulching film is adjusted, the black heat-insulating layer is favorable for absorbing heat generated by sunlight irradiation, and compared with the common film, the soil temperature can be increased, so that the early emergence and early development of crops and vegetables are promoted, and the early sowing or early sowing in spring is realized;

(2) the illumination adjustment is carried out, the heat-insulating layers can shield light, sunlight irradiates crops through gaps among the heat-insulating layers, the incident angle of the sunlight is changed along with the movement of the sun, and the sunlight is prevented from irradiating the same position for a long time;

(3) the service life is long, and the hydrophobic coating is arranged on the outer side of the heat-insulating layer, so that the heat-insulating layer can be prevented from being washed by rainwater, the carbon black powder falls off to cause decoloration of the heat-insulating layer, and the heat-insulating layer has longer service life;

(4) keep inside ecological environment, prevent soil salinization, after the plastic film mulching, because the motion of soil moisture is from lower to upper removal, the moisture content of surface soil is high, has reduced soil salinity content relatively to play the effect of salt of inhibiting.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another embodiment of the present invention.

Detailed Description

The following describes the embodiments of the present invention with reference to the drawings and examples.

As shown in fig. 1, the nano agricultural mulching film comprises a protective layer 2 positioned on a lower layer and a functional layer 1 positioned on an upper layer, wherein black strip-shaped heat preservation layers 3 are arranged on the functional layer 1 at intervals, and a gap between two adjacent heat preservation layers 3 is equal to the width of the gap; the protective layer 2 is a polyethylene long-life non-dropping film prepared by mixing polyethylene and a long-life agent and used for protecting the salinity of soil, the functional layer 1 is made of polyethylene, the polyethylene is high in light transmittance and convenient to observe the growth of crops inside from the outside, the heat preservation layer 3 can shield light, the sunlight penetrates through the gap between the heat preservation layers 3 and irradiates on the crops, the sunlight injection angle changes along with the movement of the sun, and the sunlight is prevented from irradiating the same place for a long time.

Furthermore, the thickness of the heat preservation layer 3 is 10 to 30 microns, the heat preservation layer 3 is a carbon black coating which is coated on the upper surface of the functional layer 1, the carbon black coating is made of nano carbon black powder and polyethylene materials and is attached to the outside of the functional layer 1 in a spraying mode, on one hand, sunlight can be shielded, on the other hand, solar energy can be absorbed, the temperature in the ground film is increased, and a proper growing environment is provided for the growth of crops.

Further, the outside coating of heat preservation 3 has the hydrophobic coating, the water delivery coating selects the transparent hydrophobic self-cleaning coating spraying that Shanghai Zhengnano technology limited produced to form, it can prevent that the rainwater from washing away heat preservation 3 to set up the hydrophobic coating in the heat preservation 3 outside, make the carbon black powder drop and cause heat preservation 3 decoloration, make heat preservation 3 have longer life-span, wherein, the width of heat preservation 3 is 1 to 5cm, in addition, further can set up the hydrophobic coating in the outside of functional layer 1 and the inboard of protective layer 2, it can avoid its outside water smoke to adhere to set up the hydrophobic coating in the functional layer 1 outside, the shading influences the observation to inside crop, it can prevent effectively that water smoke from forming in the inboard of protective layer 2 to set up the hydrophobic coating in the inboard of protective layer 2, guarantee the light transmissivity, wherein, the thickness of hydrophobic coating is 0.01 to 5 mu m. .

Further, the functional layer 1 is a polyethylene film, and the thickness of the functional layer 1 is 1 to 2 μm.

Further, the protective layer 2 is a polyethylene long-life non-drip film, and the thickness of the protective layer 2 is 12 to 15 μm.

In the above embodiment, as another embodiment of the present invention, as shown in fig. 2, a buffer layer 4 is provided between the functional layer 1 and the protective layer 2, the buffer layer 4 is formed by filling air between the functional layer 1 and the protective layer 2 after the periphery of the functional layer 1 and the protective layer 2 is sealed, and the air is a bad conductor of heat, so that temperature fluctuation in the mulching film can be alleviated, and the damage to the mulching film caused by sudden temperature rise or reduction can be avoided, and meanwhile, the mulching film can have a good effect of resisting external force impact by providing the buffer layer 4 in the mulching film.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a nanometer agricultural plastic film which characterized in that, is including the protective layer that is located the lower floor and the functional layer that is located the upper strata, the interval is provided with the heat preservation of black bar on the functional layer, adjacent two clearance between the heat preservation equals rather than the width.

2. The nano agricultural mulching film according to claim 1, wherein: the heat-insulating layer is a carbon black coating which is coated on the upper surface of the functional layer.

3. The nano agricultural mulching film according to claim 2, wherein: the outer side of the heat-insulating layer is coated with a hydrophobic coating.

4. The nano agricultural mulching film according to claim 3, wherein: the thickness of the heat-insulating layer is 10-30 μm.

5. The nano agricultural mulching film according to claim 3, wherein: the hydrophobic coating has a thickness of 0.01 to 5 μm.

6. The nano agricultural mulching film according to claim 1, wherein: the functional layer is a polyethylene film, and the thickness of the functional layer is 1 to 2 μm.

7. The nano agricultural mulching film according to claim 1, wherein: the protective layer is a polyethylene long-life dripless film, and the thickness of the protective layer is 12-15 mu m.

8. The nano agricultural mulching film according to claim 1, wherein: the width of the heat-insulating layer is 1-5 cm.

9. The nano agricultural mulching film according to any one of claims 1 to 8, wherein: a buffer layer is arranged between the functional layer and the protective layer, and the buffer layer is formed by filling air between the functional layer and the protective layer.