KR19980068864A - Agricultural polymer film and its production method - Google Patents

Abstract

The present invention relates to an agricultural polymer film containing an additive capable of converting UV-rays and short wavelengths into a red wavelength range and a production method thereof.

The present invention is characterized by providing an ideal mixture for the production of a film that can convert UV-light or short wavelength into red visible light to produce a polymer film that can be used for agriculture, thereby effectively promoting plant growth. .

Description

Agricultural polymer film and its production method

The present invention relates to an agricultural polymer film and a method for producing the same, and more particularly, to an agricultural polymer film containing an additive capable of converting UV-rays and short wavelengths into a red wavelength range and a method for producing the same.

Conventionally, the components of polymers that are converted to various light for agricultural use are polymer compositions that absorb light by containing an active additive in a pyrazine composite as described in Japanese Patent Application No. 06199814 or 05170969, ie, The polymer composition is when the active additive is attached to a glass plate, the energy of UV light is converted or changed to reflect in the blue wavelength, range.

Therefore, the use of these polymer components in agriculture is limited. This is because blue wavelengths are less effective than red wavelengths in plant growth and productivity.

The polymer composition available for agriculture, identified in the certificate (NO. 2047624) by Russian authors, such as minich, contains active adducts in the form of solid products, which are europium in the isopropanol solution. It was obtained by chemical reaction between Europium nitrate, Lanthanum nitrate, and 1,10-phenanthrolines.

The Europium-Lanthanum composition has several drawbacks, which must first be synthesized and then purified and dried.

The size of the molecules obtained during the synthesis ranges from 2.3 microns to 10 or several hundred microns, resulting in increased scattered light by the film, resulting in a loss of light intensity due to the diffusion of the molecules.

The present invention seeks to provide an ideal mixture for the production of a film that can convert UV-light or short wavelengths into red visible light to provide a modified polymer film that can convert UV to red visible light that can be used for agriculture in the mixture. It is. Another object of the present invention is to provide an improved mixture capable of producing polymer films containing polythylene and active additives that can overcome the disadvantages of the materials used so far, so as to effectively promote plant growth. I want to.

1 is a graph showing the optical characteristics of the agricultural polymer film of the present invention

* Description of the symbols for the main parts of the drawings *

1: optical density of film 2: conversion rate in U.V region

3: emission spectrum 4: spectrum of solar light in U.V region

The present invention can be achieved by preparing a polymer composite containing the following active additives.

That is, to produce a polymer film containing polystyrene and an active additive, the active additive in the polymer composite containing the mixture active additive:

A) Oxygen. That is, they are obtained from a group of organic or inorganic salts of Europium, which are the bases of acetic acid and the same type of fluoroacetic acid, benzoic acid, phenyl acetic acid and picolinic acid. acid), nicotinic acid (nicotic acid), and quinolinic acid (similar bases).

B) a complex obtained from the Diketone group (R1C (o) CH2C (o) R2). In some respects R1 and R2 are methyl, ethyl, propyl, butyl, pentyl, hexyl and the like, fluorocarbones and the like, It is derived from phenyl analogues or analogues substituted with phenyl and 2-tenyl analogues.

For example, 4-benzol (benzoyl) -3-methyl (methyl) -1-phenyl (phenyl) -2-pyrazoline (pyrazo)

-line) -5-OH can be used as an active adduct of component B.

C) The compound may be 2,2'-dipyridine or 4, 4'-dipyridine or 1,10-di- (nitrogen) N-phenanthroline or triacetyl phosphine oxite (triacetyl phosphine oxide) is independently selected from the group of phosphine oxide substituted with alkyl (Alkyl).

The mass ratio between the active adducts present in the three-component composition was calculated by calculation.

That is, one atom of Europium of component A, three molecules of compound B, one molecule of two Nitrogenheterocycles, or alkyl of compound C two molecules of phosphine oxide substituted with alkyl).

The amount of active adduct added to the polymer composition varies but the ideal range is 0.005% to 0.1% of the total composition weight.

The range of 0.01% to 0.75% is very ideal and the range of 0.05% and 0.5% is the most preferred concentration.

Although the specific conception of this invention is described in an Example. The present invention is not particularly limited.

Example 1

The active adducts of Eu-oxide, thenoyltrifluoroacetone, and 2,2'-dipyridine mixed at a ratio of 1: 3.78: 0.88 are about the polymer added weight. Mechanically mixed with 0.3% polyethylene polymer pellets and placed in the film.

Example 2

Thenoyltrifluoroacetone and 1.10-phenanthroline

The active adducts containing (phenanthrolin) in a 1: 0.27 analogy were mechanically mixed with polyethylene pellets, about 10% of the polymer weight.

Compositions obtained from several were placed in pellet (concentrate 1).

Hexahydrate of EV Nitrate was added to the pellet (concentrate 1) to form the concentration of the active adduct.

The ratio of the pellet (concentrate 1) and the polymer including europium is 1:30.

In the obtained configuration, the ratio between the wean nitrate and thenoyltrifluoroacetate is 0.67: 1, and a mixture of pellets containing europium and polyethylene is mixed with the film. Molded.

Example 3

To form the europium complex, trioctylphosphineoxide in a ratio of 1: 2.53: 2.35 was mechanically mixed with ethylene (Co) polymer pellets, 0.3% in total Europium complex concentration of polymer weight. This configuration was molded into a film.

All the above films are not different in terms of the mechanical properties and the conversion amount obtained from the initial polymer.

It absorbs 90% of the U.V component of sunlight and converts it into light in the red wavelength range.

1 shows the solar-spectrum and the emission spectrum and absorption spectrum of the film were obtained by Example 2.

The data of the film obtained in the composition with active adducts is not different from that shown in FIG.

As described above, the present invention provides an ideal mixture for the production of a film capable of converting UV-light or short wavelengths into red visible light, thereby converting UV-light into red visible light by the film containing the ideal mixture. It will be able to provide the effect of effectively promoting plant growth in agriculture.

Claims (4)

The polymer composition composed of ethylene polymer is composed of a and b which can convert UV light into red wavelength. a) 0.005-1.0% of the adduct weight by mixing the 3-component, b) a compatible carrier, ie a three-component mixture containing the remaining component A of the total constituent weight, selected from the group of oxygen, from the group of organic and soluble bases of Eu, component B, beta diketone An agricultural polymer film selected from the group consisting of two selected and phosphine oxides or nitrogen heterocycles substituted with component C trialkyl. The polymer composition of claim 1, wherein the polymer composition is composed of ethylene (ethylene) polymer, and the polymer composition comprises 0.01-0.75% of the weight of adducts mixed with 3-component, and the rest is composed of a compatible carrier. Agricultural polymer film. The agricultural composition as claimed in claim 1, wherein the polymer composition constituted on the basis of the ethylene polymer is 0.05-0.5% by weight of the component mixture additive composition and the remaining compatible carrier by weight of the total composition. Polymer film. A method for producing an agricultural polymer film, comprising the step of mixing the mass mixture ratio (mixed mass ratio) of the carrier three-component mixture to obtain a polymer composition capable of converting UV light into red wavelength light and forming the composition into a film.