The composition of the film of polymer material for covering greenhouses and optical activator for polymer material (options)

 

(57) Abstract:

The invention is intended for use in agriculture for covering greenhouses, greenhouses polymer film materials. Covering for greenhouses contains a thermoplastic polymer, stabilizer and optical activator based compounds europium. As a stabilizer contains venosan-23, and as activator - strontium sulfide activated with europium or sulphide of strontium and calcium, activated by europium or strontium sulfide, activated by europium, dysprosium and/or terbium, or sulphide of strontium, calcium, activated by europium, dysprosium and/or terbium. Film material obtained using the proposed optical activators, has svetoprelomlyayuschimi properties: absorbs the ultraviolet rays of the solar spectrum in the range of 250-330 and 400-440 nm and emits in the red region of the spectrum in the range 580-760 nm, with the maximum in 618-680 nm, i.e. in the region of absorption of both chlorophyll a and chlorophyll B, which leads to increased activity of plant photosynthesis. In addition, the polymer material has a long, up to 2 h afterglow that provides irradiation of plants in most BC is a mere filler captures the near-field region in the visible part of the solar spectrum, what makes effective use of film in cloudy weather. 5 C. and 8 C.p. f-crystals.

The invention is intended for use in agriculture, in particular in the greenhouse.

Polymer compositions using optical activators when used in agriculture, horticulture provide the whole range of factors likely to affect the stimulation of plant growth, increasing seed germination, increase yields and reduce ripening, namely:

- plant protection from the most harmful part of the UV radiation;

- redistribution of the spectrum of natural solar radiation in the region of maximum absorption of chlorophyll;

- increasing the duration of exposure of the plants in the most favorable spectral region.

Wide involvement of solar energy in the energy balance of agricultural production is an extremely important issue. Important role in its solution is creating svitrigailos and light transforming material. The creation of such materials provides fine control of the spectral composition of light incident on a green leaf, and p is m is achieved not so much by improving the energy balance in the red region, many at the expense of sighting the impact of additional radiation with a narrow range in the area of maximum absorption of chlorophyll A and chlorophyll B (610-680 nm).

Known composition to obtain films based on thermoplastic polymer containing optically active filler (activator), in which the composition contains complex compounds thenoyltrifluoroacetone europium with 1,10-phenantroline (a.with. SU 1381128, class C 08 K 5/07 15.03.88).

The introduction of this compound in the film allows hard to absorb UV radiation in the field of 250-380 nm and convert it to radiation in the field 580-760 nm. However, the use of this composition in mass production is very expensive, the connection itself is poisonous.

Closest in composition is a polymer composition based on suspension of polyvinyl chloride, which is used in the manufacture of films for agricultural purposes.

As the optically active additive composition contains a complex compound of europium with 1,10, phenanthroline or triphenylphosphine, or mixtures thereof. The composition comprises a stabilizer - aoademy stearate barium and cadmium, and plasticizers (a.with. SU 1552616 A1, class C 08 L 27/06, 20.05.96).

Well-known supplements for greenhouse plastic film, which is a mixture of complex compounds thenoyltrifluoroacetone europium with 1,10 - phenanthroline and benzoyl-benzoate with europium 4.4-dipyridil (SU 1463737, class C 08 L 23/06, 1989).

Known formula allows you to absorb radiation in the field of 220-380 nm and effectively (75-79%) to transform it into an area 580-760 nm. The compounds used in the additive are deficient, toxic, which makes it possible to realize mass production of such additives and to ensure the safety of operations in the manufacture of the film and the disposal of waste.

Given the technical nature and purpose as a prototype of the selected optical activator for greenhouse polyethylene film containing the phosphor of yttrium oxide activated with europium and halophosphate calcium, activated by antimony and manganese, and foreverman magnesium, activated manganese.

The use of such a mixture in the greenhouse film is not effective because its emission spectrum is only partially falls in the region of maximum absorption of chlorophyll. In addition, the excitation of him in the near UV region is weak, which makes it notable is K 11/08, 30.05.94).

The objective of the invention is to provide comprehensive technical result, namely:

the absorption of UV radiation, the depressing force on the growth of plants, and converted into radiation in the red region of the spectrum;

- use of the polymer film with the described activator in cloudy weather, because the excitation spectrum of the composition captures the near-field region of the visible part of the spectrum.

- increased plant photosynthesis through targeted exposure to additional radiation with a narrow range in the area of maximum absorption of chlorophyll A and chlorophyll B;

- long, within a few hours, afterglow that provides irradiation of plants in the most favorable spectral region and after sunset, as if artificially increasing the length of daylight.

This technical result is achieved by the fact that the proposed composition comprising a thermoplastic polymer, stabilizer and optical activator based on compounds of europium, as a stabilizer contains venosan-23, and as an optical activator - strontium sulfide, activated by europium, or sulphide of strontium and calcium, Akti is trance and calcium, activated by europium and dysprosium and/or terbium in the following ratio of components, wt.%:

Stabilizer - 0,05-0,10

Activator - 0,01-0,50

Polymer - Rest

In addition, the optical activator for the film material as compounds of europium contains strontium sulfide, activated by europium, in the following ratio, wt.%:

Sulphide of strontium - 99,50-99,95

Europium - 0,05-0,50

or strontium sulfide and calcium sulfide activated by europium, in the following ratio of components, wt.%:

Sulphide of strontium - 5,00-94,10

Sulphide of calcium - the 5.45 94,9

Europium - Rest

or strontium sulfide activated with europium and dysprosium and/or terbium, in the following ratio, wt.%:

Sulphide of strontium - 99,50-99,94

Dysprosium and/or terbium - 0.01 to 0.04)

Europium - Rest

or strontium sulfide and calcium sulfide activated by europium and dysprosium and/or terbium in the following ratio, wt.%:

Sulphide of strontium - 5,00-94,49

Sulphide of calcium - the 5.45 94,46

Dysprosium and/or terbium - 0.01 to 0.04)

Europium - Rest

In addition, the optical activator for film polymeric material can further Soden of these optical activators - 10-50

Phosphate of yttrium Vanadate activated with europium - 10-90

or oxysulfide yttrium, europium activated, in the following ratio, wt.%:

One of these optical activators - 10-50

Oxysulfide yttrium, europium activated - 30-90

Due to the introduction of sulphide of calcium in the composition of the activator can be shifted a maximum of radiation and to provide the most complete contact with the region of maximum absorption of chlorophyll.

The compositions provide the optical afterglow activator for 0.5 - 1 h

However, the addition of optical activator dysprosium and/or terbium in the amount of 0.01 to 0.04 wt.% allows you to increase the afterglow up to 1.5-2 h, and the addition of phosphate of yttrium Vanadate activated with europium, or oxysulfide yttrium, activated by europium, can increase the absorption of the UV part of the solar spectrum in the range of 220-350 nm, the most harmful to plants, and to increase the luminescence in the red region of the spectrum.

To give an optical activator ability to molten polymer, as well as to improve their resistance to moisture they are covered with a sheath by known methods. As terol etc.

The quantitative content of the optical activator proposed composition of 0.01 to 0.5% by weight of the composition.

When the content of the optical activator is less than 0.01 wt.% decreases the intensity of the luminescence film light transforming material. When the content of the optical activator than 0.5% of the intensity of the luminescence increases slightly, but increases the cost of the light transforming material.

To increase the lifetime of the light transforming polymeric materials used as stabilizer venosan-23 (TU 6-22-0205603-3-88) in an amount of 0.05-0.1 wt.%. In addition, adding venosan-23 increases the intensity of luminescence of polymer light transforming material.

The proposed polymer light transforming materials absorb up to 90% of UV radiation in the region of 220-350 nm and 400-440 nm, the translucency in the field of 580-700 nm is 80-85%.

Estimated warranty period saving luminescent properties svetoprozrachnymi materials exceeds the service life of polymeric film material and is at least 10 years.

The invention consists in the following. To obtain the composition of the granules of polyethylene mechanical the ion processing and receive a polymer film with a thickness for example, 120 μm.

The invention is illustrated in the examples, confirming the possibility of its implementation to achieve the desired technical effect.

Example 1. 100 g of strontium oxide and 45 g of sulfur is mixed with a solution of europium nitrate in an amount of 0.1 wt.% in terms of metal, mix, dried and calcined at temperatures above 900oC in quartz cuvettes. After cooling, the product raspakovyvat and sifted.

Received optical activator contains about 99.9 wt.% sulfide strontium, 0.1 wt. % europium emits in the red regionmax= 618 nm, duration of afterglow 1 h

Example 2. Carried out analogously to example 1, except that europium is injected in the amount of 0.05 wt.%.

Received optical activator contains 99.95 wt.% sulphide of strontium, of 0.05 wt.% europium emits in the red region withmax= 618 nm, duration of afterglow 30 minutes

Example 3. Carried out analogously to example 1, except that europium is injected in the amount of 0.5 wt.%.

Received optical activator contains of 99.5 wt.% sulfide strontium, 0.5, % europium emits in the red regionmax= 618 nm, duration of polisvet the brightness and short (less than 5 min) afterglow.

Example 4. 50 g of strontium oxide, 50 g of calcium oxide and 40 g of sulfur is mixed with a solution of europium nitrate in an amount of 0.1 wt.% in terms of metal, mix, dried and calcined at temperatures above 900oC in quartz cuvettes. After cooling, the product raspakovyvat and sifted.

Received optical activator contains about 99.9 wt.% solid solution of strontium sulfide and calcium sulfide and 0.1 wt.% europium. In the solid solution contains a total of 47.5 wt.% sulphide of strontium and 52.4 wt.% sulphide of calcium.

Optical activator emits in the red region of the spectrum withmax= 660 nm, duration of afterglow 50 minutes

Example 5. to 4.23 g of strontium oxide, 73,6 g of calcium oxide and 45 g of sulfur is mixed with a solution of europium nitrate in the amount of 0.5 wt.% in terms of metal. Then proceed analogously to example 4. Received optical activator contains of 99.5 wt.% solid solution of strontium sulfide and calcium sulfide and 0.5 wt.% europium. In the solid solution contains 5 wt.% sulfide strontium 94.5 wt.% sulphide of calcium.

Optical activator emits in the red region of the spectrum withmax= 690 nm, duration of afterglow 40 minutes

Example 6 to 4.23 the AC.% in terms of metal. Then proceed analogously to example 4. Received optical activator contains about 99.9 wt.% solid solution of strontium sulfide and calcium sulfide and 0.1 wt.% europium. In the solid solution contains 5 wt.% sulfide strontium 94.5 wt.% sulphide of calcium.

Optical activator emits in the red region of the spectrum withmax= 695 nm, duration of afterglow 35 minutes

Example 7. 81,8 g of strontium oxide, 4,56 g of calcium oxide, 40 g of sulfur is mixed with a solution of europium nitrate in the amount of 0.05 wt.% in terms of metal. Then proceed analogously to example 4. Received optical activator contains 99.95 wt.% solid solution of strontium sulfide and calcium sulfide and 0.05 wt.% europium. In the solid solution contains 94,1 wt. % of strontium sulfide and 5.85 wt.% sulphide of calcium. Optical activator emits in the red region of the spectrum withmax= 625 nm and has a duration of afterglow within 45 minutes

Example 8. 81,8 g of strontium oxide, of 4.25 g of calcium oxide and 40 g of sulfur is mixed with a solution of europium nitrate in the amount of 0.45 wt.% in terms of metal. Then proceed analogously to example 4. Received optical activator contains 99,55 wt.% solid solution of sulphide of stronz wt.% sulphide of calcium.

Optical activator emits in the red region of the spectrum withmax= 620 nm and has a duration of afterglow 55 minutes

With the increasing content of sulphide of calcium is more of 94.9 wt.% the position of the emission maximum is shifted to the long wavelength region so that the main fraction of the radiation is outside the area of maximum absorption of chlorophyll. Lowering the concentration of sulphide of calcium is less than the 5.45 wt.%, get a similar effect due to the displacement of the radiation in the short wavelength region. When the content of europium less than 0.05 wt.% and more than 0.5 wt.% the product has a low brightness and a short afterglow.

Example 9. Carried out analogously to example 1, except that in addition to europium nitrate in an amount of 0.1 wt.% in terms of metal, type of 0.03 wt.% dysprosium nitrate, calculated on the metal.

Received optical activator contains owner of 99.87 wt.% sulfide strontium, 0.1 wt.% europium and 0.03 wt.% dysprosium, emits in the red region withmax= 618 nm, has a duration of afterglow within 2 hours

Example 10. Carried out analogously to example 1, except that in addition to europium nitrate in the amount of 0.06 wt.% in terms of the metal d which contains about 99.9 wt.% sulfide strontium, 0.06 wt.% europium and 0.04 wt.% terbium, emits in the red region of the spectrum withmax= 618 nm, has a duration of afterglow within 90 minutes

Example 11. Carried out analogously to example 1, except that in addition to europium nitrate in the amount of 0.45 wt.% in terms of metal add 0.005 wt.% dysprosium nitrate and 0.005 wt.% terbium nitrate, both in terms of metal.

Received optical activator contains 99,53 wt.% sulfide strontium, and 0.46 wt. % europium and 0.005 wt.% terbium and dysprosium, emits in the red region of the spectrum withmax= 618 nm, has a duration of afterglow 80 minutes

Example 12. Carried out analogously to example 1, except that in addition to europium nitrate in the number and 0.46 wt.% in terms of metal add to 0.04 wt.% terbium nitrate, calculated on the metal.

Received optical activator contains of 99.5 wt.% sulfide strontium, and 0.46 wt.% europium is 0.04 wt.% terbium, emits in the red region of the spectrum withmax= 618 nm. Has the duration of afterglow 70 minutes

Example 13. Carried out analogously to example 1, except that in addition to europium nitrate in the amount of 0.05 wt.% in terms of metal, on which contains 99,94 wt.% sulfide strontium, 0,05 wt. % europium and 0.01 wt. % of dysprosium, emits in the red region of the spectrum withmax= 618 nm and has a duration of afterglow 65 minutes

When the content of europium less than 0.05 wt.% and more and 0.46 wt.% the resulting product has a low brightness and a short afterglow. When the reduction in the activator content of dysprosium or terbium less than 0.01 wt.% there has been no increase in the duration of the afterglow, while increasing their content more than 0.04 wt.% also does not increase the duration of the afterglow.

Example 14. 41,1 g of strontium oxide, 50 g of calcium oxide and 40 g of sulfur is mixed with a solution of europium nitrate in an amount of 0.1 wt.% in terms of metal, type of 0.03 wt.% terbium nitrate, calculated on the metal, then proceed analogously to example 4.

Received optical activator contains 47,47 wt.% sulfide strontium, 52,40 wt. % sulphide of calcium, 0.1 wt.% europium and 0.03 wt.% terbium, emits in the red region of the spectrum withmax= 660 nm and has a duration of afterglow 90 minutes

Example 15. of 81.4 g of strontium oxide, of 4.25 g of calcium oxide and 40 g of sulfur is mixed with a solution of europium nitrate in the amount of 0.05 wt.% in terms of metal, type of 0.04 wt.% dysprosium AZ is Tivadar contains 94,46 wt.% sulfide strontium, the 5.45 wt.% sulphide of calcium, of 0.05 wt.% europium and 0.04 wt.% dysprosium, emits in the red region of the spectrum cmax= 625 nm and has a duration of afterglow 60 minutes

Example 16. 4,23 oxide of strontium, of 73.5 g of calcium oxide and 45 g of sulfur is mixed with a solution of europium nitrate in the amount of 0.5 wt.% in terms of the metal, add 0.02 wt.% dysprosium nitrate, 0.02 wt.% terbium nitrate, both in terms of the metal, then proceed analogously to example 4.

Received optical activator contains 5.0 wt.% sulfide strontium, 94,46 wt.% sulphide of calcium, 0.5 wt.% europium, 0.02 wt.% dysprosium, 0.02 wt. % of terbium, emits in the red region of the spectrum withmax= 690 nm and has a duration of afterglow 45 minutes

Example 17. of 81.5 g of strontium oxide, of 4.25 g of calcium oxide and 40 g of sulfur are mixed from 0.05 wt.% europium nitrate in terms of the metal, add 0.01 wt.% terbium nitrate, calculated on the metal, then proceed analogously to example 4.

Received optical activator contains 94,49 wt.% sulphide of strontium of 5.45 wt.% sulphide of calcium, of 0.05 wt.% europium, 0.01 wt.% terbium, emits in the red region withmax= 625 nm and has a duration of afterglow 50 minutes

The increase is comprises an emission maximum in the wavelength region, resulting in the bulk of the radiation is outside the maximum absorption of chlorophyll. The decrease of the content of europium less than 0.05 wt.% and the increase of more than 0.5 wt.% reduce the brightness; the decrease in the content of the terbium and/or dysprosium less than 0.01 wt.% does not increase the duration of the afterglow, and their increase more than 0.04 wt.% not the duration of the afterglow, and their increase more than 0.04 wt.% also leads to an increase in the duration of the afterglow.

Example 18. Optical activator for the polymer material contains to 29.27 wt. % of strontium sulfide, 0.3 wt.% europium and 70 wt.% oxysulfide yttrium, activated by europium (the content of europium activated oxysulfide yttrium in accordance with THE 48-4-328-87).

Optical activator absorbs UV radiation of the solar spectrum in the range 220-360 nm and emission in the field of 400-440 nm, emits in the red region of the spectrum withmax= 618 nm, duration of afterglow 60 minutes

Example 19. Optical activator for the polymer material contains 11,77 wt. % of strontium sulfide, 13,11 wt.% sulphide of calcium, of 0.12 wt.% europium and 75 wt.% oxysulfide yttrium, activated by europium. Optical activator absorbs UV radiation in the region between 220-360 nm and in the field 400-4. pricheski activator for the polymer material contains 39,95 wt.% sulphide of strontium, of 0.04 wt.% europium and 0.01 wt.% dysprosium and 60 wt. % oxysulfide yttrium, activated by europium.

The optical filler absorbs radiation of the solar spectrum in the range of 220-350 and 400-440 nm, emits in the red region cmax= 618 nm. Afterglow 90 minutes

Example 21. Optical activator contains 23,28 wt.% sulphide of strontium of 26.4 wt.% sulphide of calcium, 0.3 wt.% europium, 0.02 wt.% terbium and 50 wt.% oxysulfide yttrium, activated by europium.

Optical activator absorbs radiation of the solar spectrum in the range of 220-350 nm and 400-440 nm, emits in the red region of the spectrum with max= 618 and 690 nm. Afterglow 90 minutes

Example 22. Optical activator contains 9,99 wt.% sulfide strontium, 0.01 wt.% europium and 90 wt.% phosphate of yttrium Vanadate activated with europium (the content of europium activated phosphate-Vanadate yttrium in accordance with THE 48-4-403-87).

Optical activator absorbs radiation of the solar spectrum in the range of 220-350 and 400-440 nm and emits in the red region of the spectrum withmax= 618 nm.

Duration of afterglow 60 minutes

Example 23. Optical activator is I, activated by europium.

Optical activator absorbs radiation of the solar spectrum in the range of 220-350 and 400-440 nm, emits in the red region of the spectrum withmax= 618 and 650 nm. Duration of afterglow 50 minutes

Example 24. Optical activator for the polymer material contains 49,93 wt. % of strontium sulfide, to 0.055 wt.% europium and 0.015 wt.% dysprosium, and 50 wt.% phosphate-yttrium Vanadate activated with europium.

Optical activator absorbs radiation of the solar spectrum in the range of 220-350 nm and 400-440 nm and emits in the red region of the spectrum withmax618 nm, duration of afterglow 2 hours

Example 25. Optical activator contains 33,07 wt.% sulfide strontium, 1,90 wt. % sulphide of calcium, to 0.016 wt.% europium, 0.007 wt.% dysprosium and 0.007 wt.% terbium and 65 wt.% phosphate of yttrium Vanadate activated with europium.

Optical activator absorbs radiation in the range of 220-350 nm and 400-440 nm and emits in the red region withmax= 618 and 690 nm.

Duration of afterglow 45 minutes

Mixed optical activator may also contain yttrium oxide activated by europium. The content of europium activated yttrium oxide in accordance with THE 48-4-444-83.

When,01 wt.% terbium and 50% of yttrium oxide, activated by europium.

Optical activator absorbs radiation in the range of 220-350 nm and 400-440 nm and emits in the red region withmax= 618 and 660 nm. Duration of afterglow 90 minutes

Example 27. The composition of the polymer film coating polyethylene-based brand 108-03-020 includes an optical activator containing about 99.9 wt. % of strontium sulfide, 0.1 wt.% europium, thermo stabilizer - venosan-23 ratio, wt.%:

Optical activator - 0,1

Thermo stabilizer - 0,05

Polyethylene - Rest

The song is produced by mechanical mixing of the granules of polyethylene powder activator and thermo stabilizer with subsequent extrusion processing in the film product of a thickness of 120 μm. The obtained film material absorbs radiation of the solar spectrum in the range of 250-350 nm to 65%, in the range of 400-440 nm - 90% emits in the red region of the spectrum withmax= 618 nm. Afterglow 1 h

Example 28. The composition of the polymer film coating polyethylene-based brand 158-03-020 includes activator containing of 99.5 wt.% sulfide strontium, 0,46% wt.% europium is 0.04 wt.% terbium, thermo stabilizer - venosan-23 ratio, wt.%:

Activator - 0,2

Components CNY material absorbs radiation of the solar spectrum in the range of 250-330 nm 69%, in the range of 400-440 nm - 92%, emits in the red region of the spectrum withmax= 618 nm, duration of afterglow - 70 minutes

Example 29. The composition of the polyethylene-based brand 108-03-020 containing as an activator strontium sulfide, activated by europium containing about 99.9 wt.% of strontium sulfide and 0.1 wt.% europium, and oxysulfide yttrium, europium activated, thermo stabilizer - venosan-23 ratio, wt.%:

The strontium sulfide activated with europium - 0,1

Oxysulfide yttrium, europium activated - 0,3

Thermo stabilizer - 0,5

Polyethylene - Rest

get analogously to example 18. The obtained film material absorbs radiation of the solar spectrum in the range of 280-300 nm 91%, in the range of 400-440 nm - 92%, emits in the red region of the spectrum withmax= 618 nm, duration of afterglow 1 h

Example 30. The composition of the polyethylene-based brand 108-03-020 containing as an activator strontium sulfide, activated by europium and terbium containing of 99.5 wt. % of strontium sulfide, and 0.46 wt.% europium and 0.04 wt.% terbium, and phosphate of yttrium Vanadate activated with europium, thermo stabilizer - venosan-23 ratio, wt.%:

The strontium sulfide, activated by europium and term Polyethylene - Else

get analogously to example 18. The obtained film material absorbs radiation of the solar spectrum in the range of 250-330 nm to 90%, in the range of 400-440 nm - 85%, emits in the red region of the spectrum withmax= 618 and 630 nm, duration of afterglow 70 minutes

The claimed invention can be used in agricultural production in the manufacture of polymer compositions containing activator and thermo stabilizer.

The invention provides unique opportunities such compositions to redistribute the energy spectrum of natural solar radiation, increases their resistance, service life, improve the ecological situation when working with them. In cloudy weather, regulates the maximum radiation in the region of maximum absorption of chlorophyll and increases the afterglow, thereby creating the possibility of varying the properties of the polymer compositions in relation to the growing conditions of plants with maximum agronomic effect.

1. The composition of the film of polymer material to cover greenhouses containing thermoplastic polymer, stabilizer and optical activator based on compounds of europium, characterized in that it in km, or sulphide of strontium and calcium, activated by europium, or strontium sulfide, activated by europium, dysprosium and/or terbium, or sulphide of strontium, calcium, activated by europium, dysprosium and/or terbium in the following ratio, wt.%:

Stabilizer - 0,05 - 0,1

Optical activator - 0,01 - 0,5

Polymer - Rest

2. Optical activator for polymer-based material compounds of europium, characterized in that compounds of europium it contains strontium sulfide, activated by europium, in the following ratio, wt.%:

Sulphide of strontium - 99,5 - 99,95

Europium

0,05 - 0,5

3. The activator under item 2, characterized in that it further contains phosphate of yttrium Vanadate activated with europium ratio(1 - 5) : (1 - 9).

4. The activator under item 2, characterized in that it additionally contains oxysulfide yttrium, activated by europium ratio(1 - 5) : (3 - 9).

5. Optical activator for polymer-based material compounds of europium, characterized in that compounds of europium it contains strontium sulfide and calcium sulfide activated by europium, in the following ratio of components, IGOs p. 5, characterized in that it further contains phosphate of yttrium Vanadate activated with europium ratio(1 - 5) : (1 - 9).

7. The activator under item 5, characterized in that it additionally contains oxysulfide yttrium, activated by europium ratio(1 - 5) : (3 - 9).

8. Optical activator for polymer-based material compounds of europium, characterized in that compounds of europium it contains strontium sulfide, activated by europium, dysprosium and/or terbium, in the following ratio, wt.%:

Sulphide of strontium - 99,5 - 99,4

Dysprosium and/or terbium - 0.01 to 0.04)

Europium - Rest

9. The activator under item 8, characterized in that it further contains phosphate of yttrium Vanadate activated with europium ratio(1 - 5) : (1 - 9).

10. The activator under item 8, characterized in that it additionally contains oxysulfide yttrium, activated by europium ratio(1 - 5) : (3 - 9).

11. Optical activator for polymer-based material compounds of europium, characterized in that compounds of europium it contains strontium sulfide and calcium sulfide activated by europium, dysprosium and/or terbium, the next time southerby - 0,01 - 0,04

Europium - Rest

12. The activator on p. 11, characterized in that it further contains phosphate of yttrium Vanadate activated with europium ratio(1 - 5) : (1 - 9).

13. The activator on p. 11, characterized in that it additionally contains oxysulfide yttrium, activated by europium ratio(1 - 5) : (3 - 9).

 

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8 cl, 2 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, namely to the means of growing plants out of soil in a confined space with an artificially created environment. Complex comprises several aeroponic and/or hydroponic units, thermal energy accumulators in the form of heat-insulated water tank, attached to a wind power installation. Each aeroponic and/or hydroponic unit is made of a transparent material, which can be polycarbonate with LSE additive. These units are equipped with a separate mortar nodes with interconnected thermally insulated storage tanks for sludge and preparation of nutrient solution, tank for fertilizer and have separate connected to the control unit control panels with sensors and actuators. Each aeroponic unit is provided with solution sprayers, connected to the supply line of compressed air from the wind power plant. Each tank for the preparation of the nutrient solution is connected by the thermally insulated pipeline to the thermally insulated tank.

EFFECT: possibility of simultaneous growth of various plants is provided.

5 cl, 1 dwg

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