Multifunctional full-wave-band light control agricultural film and formula thereof

Abstract

The invention relates to the technical field of agricultural films, in particular to a multifunctional full-wave-band light control agricultural film and a formula thereof. The invention relates to a multifunctional full-wave band light control agricultural film and a formula thereof, the agricultural film is composed of the following seven rare earth elements and three chemical components, the rare earth elements (light conversion adjustment) comprise EuO (europium), GaO (gallium), YO (yttrium) and CeO (cerium), the light conversion wavelength is adjusted, and solar ultraviolet light is converted into red light or infrared light beneficial to plant growth; the agricultural film has the advantages that the light energy utilization rate is increased, the light energy absorption efficiency of the agricultural film exceeds 90%, the light energy utilization rate is increased by more than one time compared with a traditional light conversion agricultural film, and the problem of illumination dependence is solved; by optimizing the light environment and the soil environment, the crop yield can be increased by more than 1 / 3, and the economic benefit is remarkable; the multifunctional solar water heater has the functions of light conversion, energy storage, negative ion generation and soil improvement, does not need additional equipment, and is low in use cost.

Description

Technical Field

[0001] This invention relates to the field of agricultural film technology, specifically to a multifunctional full-band light-controlling agricultural film and its formulation. Background Technology

[0002] my country is a major agricultural country, and agricultural development is the foundation of economic development. Agricultural production is highly dependent on the development and utilization of solar energy. Improving the efficiency of solar energy's effect on plants is one of the core directions of agricultural scientific research.

[0003] Currently, utilizing translucent plastic light-converting films to process solar energy, converting ultraviolet light into red light that plants can absorb to promote photosynthesis, is a relatively convenient technical method. Existing light-converting agricultural film technologies mainly rely on rare-earth light-converting materials or chemically synthesized light-converting raw materials. Although these technologies have high conversion efficiency for ultraviolet light, they also have significant drawbacks:

[0004] Limited working time: Traditional light-converting materials can only work when there is sunlight. At night or on cloudy days when there is insufficient sunlight, they will stop converting light because they cannot receive light energy. The effective working time in a day is only about half.

[0005] Low light energy utilization: If there are consecutive cloudy days, the light energy utilization will drop significantly, making it impossible to stably guarantee the plant's growth needs.

[0006] Limited functionality: It only has the function of converting light into light and cannot achieve additional functions such as air purification and soil improvement, thus having a limited overall effect on optimizing the agricultural planting environment.

[0007] To address the aforementioned issues, this invention adds energy storage materials and negative ion generating materials to the rare earth light-converting material, achieving multifunctional integration of light energy storage, nighttime release, air purification, and soil improvement, thus significantly enhancing the practical value of agricultural film. Summary of the Invention

[0008] To address the limitations of existing light-converting agricultural films due to time constraints and limited functionality, this invention provides a multifunctional, full-band light-controlling agricultural film and its formulation. This film enables efficient absorption, storage, and conversion of solar energy, while simultaneously generating negative ions to improve light energy utilization, crop yield, and optimize the planting environment.

[0009] The technical solution provided by this invention is: a multifunctional full-band light-controlling agricultural film and its formulation, composed of the following 7 rare earth elements and 3 chemical components, the components and their functions are as follows:

[0010] Rare earth elements (light conversion regulators) include: Eu2O3 (Eu), Ga2O3 (Ga), Y2O3 (Yttrium), and CeO2 (Cerium). They regulate the light conversion wavelength, converting ultraviolet sunlight into red or infrared light that is beneficial to plant growth.

[0011] Rare earth elements (for energy storage regulation) include: Gd2O3 (gadolinium), Yb2O3 (ytterbium), and La2O3 (lanthanum), which regulate the storage and release time of light energy to achieve energy storage during the day and energy release at night;

[0012] The chemical composition (energy storage) includes: magnesium aluminate (MgAl2(SiO4)3, strontium aluminate (SrAl2O4), which helps to regulate the efficiency of light energy storage and release, and enhance the stability of energy storage;

[0013] The chemical components (negative ion generation) include: tourmaline powder, which produces a photoelectric effect under sunlight, increasing the concentration of negative ions in the air around the material.

[0014] Preferably, the material mixing ratio is as follows:

[0015] Eu2O3 (Eupyrene): 40-50%;

[0016] Ga2O3 (gallium): 1-5%;

[0017] Y2O3 (yttrium): 1-5%;

[0018] Aluminates (magnesium aluminate + strontium aluminate): 10-20%;

[0019] Tourmaline powder: 10-20%;

[0020] Other rare earth elements (CeO2, Gd2O3, Yb2O3, La2O3): The remaining amount shall be flexibly adjusted according to the actual energy storage and light conversion requirements, based on the above proportions.

[0021] Preparation method:

[0022] Weigh out the rare earth element powders, aluminates, and tourmaline powder according to the above proportions, put them into the mixing equipment and stir evenly to ensure that the components are dispersed uniformly;

[0023] Add an appropriate amount of binder, such as polyvinyl alcohol binder, to the mixed powder and continue stirring until a uniform paste is formed.

[0024] A paste-like material is mixed with an agricultural plastic film substrate, such as polyethylene or polyvinyl chloride, at a mass ratio of 1:5 to 1:10. The mixture is then processed using conventional agricultural film processing techniques such as extrusion and blow molding to produce a multifunctional, full-band light-controlling agricultural film.

[0025] The beneficial effects of this invention are:

[0026] Improving light energy utilization: The light energy absorption efficiency of the agricultural film of this invention exceeds 90%, and the light energy utilization rate is more than twice that of traditional light-converting agricultural films, thus solving the problem of light dependence;

[0027] Increase crop yield: By optimizing the light and soil environment, crop yield can be increased by more than one-third, resulting in significant economic benefits;

[0028] Multifunctional integration: It has the functions of light conversion, energy storage, negative ion generation and soil improvement, without the need for additional equipment, and has low operating costs;

[0029] Wide applicability: The proportion of rare earth elements can be adjusted according to the light requirements of different crops, such as vegetables, fruits and grains, to adapt to various planting scenarios.

[0030] Obviously, based on the above description of the present invention, and according to common technical knowledge and conventional methods in the field, various other modifications, substitutions, or alterations can be made without departing from the basic technical concept of the present invention.

[0031] The following detailed embodiments further illustrate the above-described content of the present invention. However, this should not be construed as limiting the scope of the present invention to the following examples. All technologies implemented based on the above-described content of the present invention fall within the scope of the present invention. Detailed Implementation

[0032] The present invention is illustrated below with specific embodiments, which are not intended to limit the scope of the invention.

[0033] Example 1: Weigh the following materials: 45g of Eu2O3, 3g of Ga2O3, 3g of Y2O3, 5g of magnesium aluminate, 10g of strontium aluminate, 15g of tourmaline powder, 5g of CeO2, 8g of Gd2O3, 4g of Yb2O3, and 2g of La2O3, for a total of 100g.

[0034] Place the above materials into a high-speed mixer and stir at 1500 rpm for 15 minutes to ensure uniform mixing;

[0035] Add 10g of polyvinyl alcohol binder and continue stirring for 5 minutes to form a paste.

[0036] The paste material is mixed with 800g of polyethylene plastic substrate and then shaped using a molding machine.

[0037] In field trials, this agricultural film showed that its light energy utilization rate was 1.2 times higher than that of traditional light-converting agricultural film, tomato yield was increased by 35%, the duration of infrared light release at night reached 8 hours, and soil looseness was improved by 20%.

[0038] Example 2: Weigh the following materials: 40g of Eu2O3, 5g of Ga2O3, 5g of Y2O3, 8g of magnesium aluminate, 7g of strontium aluminate, 10g of tourmaline powder, 6g of CeO2, 7g of Gd2O3, 6g of Yb2O3, and 6g of La2O3, for a total of 100g.

[0039] Stir at high speed (1800 rpm) for 20 minutes, then add 12g of polyacrylate binder and stir until homogeneous.

[0040] Mix with 900g of polyvinyl chloride material and shape using a molding machine.

[0041] In cucumber cultivation trials, this agricultural film increased light energy utilization by 1.1 times, cucumber yield by 32%, and air negative ion concentration by 50% compared to traditional agricultural film environments.

[0042] Features:

[0043] Full-band light control: It can absorb all wavelengths of sunlight, including visible light, ultraviolet light, and infrared light, and the absorption ratio can be freely adjusted, with an absorption efficiency of over 90%.

[0044] Light energy storage and release: Stores light energy during the day and continuously releases infrared light that is beneficial to plant growth at night, breaking the limitation of light time;

[0045] Negative ion generation: A large number of negative ions are generated under light, which purifies the air around the plants and improves the efficiency of photosynthesis;

[0046] Soil improvement: Negative ions can activate loose soil, improve soil structure, and provide a good environment for plant growth.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A formulation for a multifunctional full-band light-controlling agricultural film, characterized in that, The core materials include rare earth elements, aluminates, and tourmaline powder, with the following mass percentages: Eu2O3 40-50%, Ga2O3 1-5%, Y2O3 1-5%, aluminates 10-20%, tourmaline powder 10-20%, and the remainder being CeO2, Gd2O3, Yb2O3, and La2O3; the aluminates are a mixture of MgAl2(SiO4)3 and SrAl2O4.

2. The formulation of the multifunctional full-band light-controlling agricultural film according to claim 1, characterized in that, It also includes an adhesive, which is a polyvinyl alcohol or polyacrylate, and is added in an amount of 10 to 12% of the total mass of the core material.

3. A multifunctional full-band light-controlling agricultural film, characterized in that, It is prepared by mixing the formulation according to claim 1 or 2 with an agricultural plastic substrate, wherein the mass ratio of the formulation to the plastic substrate is 1:5 to 1:10; and the plastic substrate is polyethylene or polyvinyl chloride.

4. The multifunctional full-band light-controlling agricultural film according to claim 3, characterized in that, It can absorb visible light, ultraviolet light, and infrared light with an absorption efficiency of over 90%, and the absorption ratio can be adjusted; it can release infrared light at night and generate negative ions under light.

5. The application of the multifunctional full-band light-controlling agricultural film as described in claim 3 in agricultural planting, characterized in that, The proportion of rare earth elements can be adjusted according to the light requirements of crops, making it suitable for planting scenarios of vegetables, fruits, and grains.