CN105332091A - Preparation method for light-diffusing cooling heat-radiation protective net - Google Patents
Preparation method for light-diffusing cooling heat-radiation protective net Download PDFInfo
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- CN105332091A CN105332091A CN201510787465.0A CN201510787465A CN105332091A CN 105332091 A CN105332091 A CN 105332091A CN 201510787465 A CN201510787465 A CN 201510787465A CN 105332091 A CN105332091 A CN 105332091A
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Abstract
The invention discloses a preparation method for a light-diffusing cooling heat-radiation protective net. The preparation method comprises the steps of masterbatch preparing, fiber preparing and draw forming, wherein masterbatches of the protective net are prepared from rutile type titanium dioxide, LDPE, LLDPE, oleamide, PE wax, far infrared ceramic powder and a silane coupling agent. According to the light-diffusing cooling heat-radiation protective net prepared through the method, on the condition of full sunlight, the temperature of the protective net is 5 DEG C-32 DEG C lower than that of a common black shading net.
Description
Technical field
The present invention relates to the preparation method of a kind of astigmatism cooling heat radiation prevention net, astigmatism cooling heat radiation prevention net is applicable to summer vegetable cultivation, flower planting, cooling such as shading such as agricultural production such as woods fruit nursery, livestock-raising etc., belongs to agricultural technology field.
Background technology
Sunshade net, also known as shading net, is a kind of novel agriculture, forestry, animal husbandry, fisheries privacy protection cladding material promoted over China's nearly more than 10 years.Play after covering summer certain to be in the light, to keep off the rain, moisturizing, cooling effect.Certain thermal insulation wetting effect is also had after winter-spring season covers.At present, sunshading net for agriculture use is polyolefin is main raw material, is woven into, adds different dyes when manufacture is by wire drawing, just can make different colours sunshade net, changes weft density, just can make the sunshade net of different shading rate.Sunshade net is mainly used in summer, the irradiation of anti-burning sun, the harm of high temperature, has become the technical measures mainly promoted that protectiveness is cultivated and aquatic products, poultry farming high temperature-proof are protected of the crops such as vegetables, flowers, edible fungus, nursery stock, medicinal material.
At present, the sunshade net of market sale, based on black, also has the light sunshade net of part.Black sunshade net realizes shading mainly through absorbing sunlight, and light sunshade net is absorbed by selective reflecting and realizes shading.Black sunshade net shading rate is high, has better cooling-down effect.But find in actual agricultural production, due to black sunshade net technology and structural factor restriction, its shading, cooling effect can't meet modern agricultural production demand simultaneously.Such as, spinach is the cold-resistant plant that To Be Protected from Heat, and summer, plantation was harsh to environmental requirement, realize cooling with traditional sunshade net, need very high shading rate could meet cooling needs, but sunshade net shading is too many, the normal photosynthesis of spinach can be affected, affect plant nutrition Composition accumulation.
In a word, there is following defect in existing sunshade net technology: under (1) sunshine, and heat transfer is fast, and sunshade net own temperature is very high; (2) common sunshade net and air or periphery object heat-shift many; Easy lifting net ambient air temperature; (3) the far infrared radiation amount of black sunshade net surface generation is high; (4) function singleness, shading, heat insulation, cooling can not take into account simultaneously.
Therefore, desirable heat radiation prevention net is not also had in agricultural production.At transformation mode of agriculture, under improving the background of agricultural performance and energy-saving and emission-reduction, be badly in need of a kind of astigmatism cooling heat radiation prevention net.
Summary of the invention
The problem to be solved in the present invention is for above deficiency, and the preparation method providing a kind of astigmatism to lower the temperature heat radiation prevention net, realizes following goal of the invention:
(1) prepare astigmatism cooling heat radiation prevention net, in full sun situation, make himself temperature 5-32 DEG C lower than conventional black sunshade net temperature.
(2) prepare astigmatism cooling heat radiation prevention net, make it be not easy and surrounding environment generation heat exchange.
(3) prepare astigmatism cooling heat radiation prevention net, make it have good radiation cooling function, reduce the far infrared radiation that protection network produces.
(4) prepare astigmatism insulation thermal radiation regulation and control film, make it have higher sunshade, cooling-down effect.
for achieving the above object, by the following technical solutions:
A preparation method for astigmatism cooling heat radiation prevention net, comprises and prepares master batch step.
Below the further improvement to technique scheme:
Describedly prepare master batch step: with parts by weight, the component of described master batch comprises:
Rutile type titanium white 426 parts
LDPE299 part
LLDPE212 part
Oleamide 13 parts
Cured 27 parts of PE
Far-infared ceramic powder 22 parts
Silane coupler 1 part.
Describedly prepare master batch step: with parts by weight, the component of described master batch comprises:
LDPE24.8 part
EVA5 part
LLDPE21 part
TPU0.8 part
Rutile type titanium white 42 parts
2.7 parts, PE wax
Oleamide 1.3 parts
Far-infared ceramic powder 2.2 parts
Silane coupler 0.2 part.
Describedly prepare master batch step: with parts by weight, the component of described master batch comprises:
LDPE37.6 part
LLDPE13 part
TPU0.9 part
Rutile type titanium white 42 parts
2.7 parts, PE wax
Oleamide 1.2 parts
Far-infared ceramic powder 2.2 parts
Silane coupler 0.4 part.
Described rutile type titanium white is: Du Pont titanium dioxide R-103, R-105, R-900, R-931 mix by weight 3:2:2:1.
Described far-infared ceramic powder: active constituent content is 99%, and average grain diameter is less than 0.5 μm.
Described preparation method also comprises fiber preparation.
It is shaping that described fiber preparation comprises traction.
Described traction is shaping: draw ratio is 5-6, and cooling water temperature is 10-15 DEG C;
The width of the fiber obtained is 3mm.
It is shaping that described preparation method also comprises establishment;
Described weaving forming: fiber weaving loom is woven into net.
the present invention compared with prior art, has following beneficial effect:
(1) the astigmatism cooling heat radiation prevention net prepared of the present invention, in full sun situation, himself temperature 5-32 DEG C lower than conventional black sunshade net temperature.
(2) the astigmatism cooling heat radiation prevention net prepared of the present invention, in full sun situation, compared with black sunshade net, protection network of the present invention and ambient air or agricultural facility heat exchange decrease 5%-32%.
(3) the astigmatism cooling heat radiation prevention net prepared of the present invention, in full sun situation, far infrared radiation that its surface produces reduces 9%-60% than black sunshade net.
(4) the astigmatism insulation thermal radiation protection net prepared of the present invention, in full sun situation, covers astigmatism cooling heat radiation prevention net compared with covering black sunshade net, improves 20%-40% to environment or earth's surface cooling-down effect; There is provided low temperature environment and suitable illumination can to the cold-resistant crop growth in summer that To Be Protected from Heat, significantly improve the quality and yield of the cold-resistant crop that To Be Protected from Heat, disease and pest incidence 20-30% can also be reduced simultaneously.
(5) service life of astigmatism cooling heat radiation prevention net of the present invention is 4-5, commonly uses black sunshade net and extends 2 years service life, significantly reduce investment use cost than market.
Detailed description of the invention
embodiment 1 one kinds of astigmatism cooling heat radiation prevention nets
The raw materials of described a kind of astigmatism cooling heat radiation prevention net mainly contains: film forming resinous material, high refractivity micropowder material, far infrared micropowder material.
(1) the wide spectrum printing opacity described in, the resin material of low-refraction:
Film forming resinous material can select the resins such as PVC, HDPE, LDPE, LLDPE;
Preferred low density polyethylene (LDPE) (LDPE), density is 0.915-0.940g/cm
3, refractive index is 1.51, high in the far infrared transmissivity of 7.0 ~ 13.0 mu m wavebands, is approximate far infrared light penetrating object.
(2) the high refractivity micropowder material described in:
Rutile type titanium white (refractive index 2.73), anatase thpe white powder (refractive index 2.55), zinc sulphide micro mist (refractive index 2.37), antimony oxide micro mist (refractive index 2.09-2.25), zinc oxide ultra_fine powders (refractive index 2.02), lithopone (refractive index 1.84) can be selected;
Preferred rutile type titanium white, refractive index is 2.73, and density is 4.26g/cm
3, average grain diameter is not less than 0.6 μm, and maximum particle diameter is not more than 1 μm;
Described rutile type titanium white is formulated by weight 3:2:2:1 by Du Pont titanium dioxide R-103, R-105, R-900, R-931, and average grain diameter controls between 0.6-1 μm.
(3) the far infrared micropowder material described in:
For far infrared ceramic micro powder, be superfine white powder (Al
2o
3, MgO, ZnO, SiO
2, ZrO
2and the mixture of rare earth oxide), density: 1.2-2g/cm
3, average grain diameter is less than 0.5 μm, and all-wave radiance is greater than 0.9, is 0.95 in 8-14 mu m waveband radiance.
the preparation method of embodiment 2 one kinds of astigmatism cooling heat radiation prevention nets
Step 1, prepare master batch
(1) formula of master batch
The master batch parts by weight of raw materials proportioning of described astigmatism cooling heat radiation prevention net is:
Rutile type titanium white 426 parts
LDPE299 part
LLDPE212 part
Oleamide 13 parts
Cured 27 parts of PE
Far-infared ceramic powder 22 parts
Silane coupler 1 part
Rutile type titanium white in the formula of master batch of above-mentioned astigmatism cooling heat radiation prevention net is: Du Pont titanium dioxide R-103, R-105, R-900, R-931 mix by weight 3:2:2:1.
(2) astigmatism master batch is prepared
LDPE, LLDPE, rutile type titanium white, PE wax, oleamide, silane coupler is taken according to the formula of master batch of astigmatism cooling heat radiation prevention net, for subsequent use;
Joined in single screw extrusion machine by above-mentioned load weighted raw material and carry out fusion plastification, the material extruded from machine head port mould passes through sizing, traction, cooling, cutting action, obtains astigmatism master batch;
The helical angle of described single screw extrusion machine is 17 °; In described refrigerating work procedure, coolant water temperature is 28 DEG C.
(3) far-infared ceramic powder is weighed
Far-infared ceramic powder is the commodity Masterbatch bought;
Described far-infared ceramic powder: active constituent content is 99%, and average grain diameter is less than 0.5 μm;
Above-mentioned Masterbatch, takes according to the formula of master batch of astigmatism cooling heat radiation prevention net, for subsequent use.
Prepared by step 2, fiber
(1) master batch batch mixing; By load weighted far-infared ceramic powder Masterbatch and the light scattering layer master batch prepared, batch mixing, stirs;
(2) draw shaping; Uniform for batch mixing master batch is added in injection machine, through traction, cooling and shaping operation, obtains protection network flat fiber; Draw ratio is 5-6, and cooling water temperature is 10-15 DEG C; The width of the flat fiber obtained is 3mm.
The scattered power of flat fiber to sunlight reaches about 94%
Step 3, weaving forming
By the braiding through protection network weaving loom of the flat fiber for preparing, make astigmatism cooling heat radiation prevention net; For foundation, 8 nets are woven into, 10 nets, 12 nets, 14 nets and 16 nets with the latitude of protection network flat fiber radical in every 25 millimeters; Wide cut can be woven into the plurality of specifications such as 90 centimetres, 150 centimetres, 160 centimetres, 200 centimetres, 220 centimetres, 250 centimetres, 300 centimetres, 400 centimetres as required.
the preparation method of embodiment 3 one kinds of astigmatism cooling heat radiation prevention nets
Step 1, prepare master batch
(1) formula of master batch
The master batch parts by weight of raw materials proportioning of astigmatism cooling heat radiation prevention net is:
LDPE24.8 part
EVA5 part
LLDPE21 part
TPU0.8 part
Rutile type titanium white 42 parts
2.7 parts, PE wax
Oleamide 1.3 parts
Far-infared ceramic powder 2.2 parts
Silane coupler 0.2 part
Rutile type titanium white in the formula of master batch of above-mentioned astigmatism cooling heat radiation prevention net is: Du Pont titanium dioxide R-103, R-105, R-900, R-931 mix by weight 3:2:2:1.
(2) astigmatism master batch is prepared
LDPE, LLDPE, rutile type titanium white, PE wax, oleamide, EVA, TPU, silane coupler is taken according to the formula of master batch of astigmatism cooling heat radiation prevention net, for subsequent use;
Joined in single screw extrusion machine by above-mentioned load weighted raw material and carry out fusion plastification, the material extruded from machine head port mould passes through sizing, traction, cooling, cutting action, obtains astigmatism master batch;
The helical angle of described single screw extrusion machine is 17 °; In described refrigerating work procedure, coolant water temperature is 28 DEG C.
(3) far-infared ceramic powder is weighed
The method of embodiment 2 is adopted to weigh far-infared ceramic powder.
Prepared by step 2, fiber
The method of embodiment 2 is adopted to carry out flat fiber preparation.
Step 3, weaving forming
Adopt the method weaving forming of embodiment 2.
the preparation method of embodiment 4 one kinds of astigmatism cooling heat radiation prevention nets
Step 1, prepare master batch
(1) formula of master batch
The master batch parts by weight of raw materials proportioning of astigmatism cooling heat radiation prevention net is:
LDPE37.6 part
LLDPE13 part
TPU0.9 part
Rutile type titanium white 42 parts
2.7 parts, PE wax
Oleamide 1.2 parts
Far-infared ceramic powder 2.2 parts
Silane coupler 0.4 part
Rutile type titanium white in the formula of master batch of above-mentioned astigmatism cooling heat radiation prevention net is: Du Pont titanium dioxide R-103, R-105, R-900, R-931 mix by weight 3:2:2:1.
(2) astigmatism master batch is prepared
LDPE, LLDPE, rutile type titanium white, PE wax, oleamide, TPU, silane coupler is taken according to the formula of master batch of astigmatism cooling heat radiation prevention net, for subsequent use;
Joined in single screw extrusion machine by above-mentioned load weighted raw material and carry out fusion plastification, the material extruded from machine head port mould passes through sizing, traction, cooling, cutting action, obtains diffusion layer master batch;
The helical angle of described single screw extrusion machine is 17 °; In described refrigerating work procedure, coolant water temperature is 28 DEG C.
(3) far-infared ceramic powder is weighed
The method of embodiment 2 is adopted to weigh far-infared ceramic powder.
Prepared by step 2, fiber
The method of embodiment 2 is adopted to carry out flat fiber preparation.
Step 3, weaving forming
Adopt the method weaving forming of embodiment 2.
result detects:
(1) carry out mechanical strength detection to astigmatism cooling heat radiation prevention net prepared by embodiment 2-4, testing result is in table 1;
Table 1
From table 1, the mechanical strength of astigmatism cooling heat radiation prevention net is high, and sunshade rate is high;
The TENSILE STRENGTH of 8 nets: warp-wise is 480-500N/50mm, and broadwise is 490-520N/50mm, and sunshade rate is 40-55%;
The TENSILE STRENGTH of 10 nets: warp-wise is 490-520N/50mm, and broadwise is 540-570N/50mm, and sunshade rate is 55-65%;
The TENSILE STRENGTH of 12 nets: warp-wise is 490-520N/50mm, and broadwise is 600-640N/50mm, and sunshade rate is 65-78%;
The TENSILE STRENGTH of 14 nets: warp-wise is 490-520N/50mm, and broadwise is 650-680N/50mm, and sunshade rate is 80-90%;
The TENSILE STRENGTH of 16 nets: warp-wise is 490-520N/50mm, and broadwise is 730-770N/50mm, and sunshade rate is 92-95%.
(2) through test, astigmatism of the present invention cooling heat radiation prevention net there is good astigmatism sunshade function, in full sun situation, sunlight hiding rare can reach 95%;
Have good astigmatism heat insulating function, the scattered power of flat fiber to sunlight of astigmatism cooling heat radiation prevention net of the present invention reaches about 94%;
Have good radiation cooling function ratio black sunshade net surface temperature, summer is low about 25 DEG C, and season in spring and autumn is low about 16 DEG C;
Have higher cooling adumbral effect compared with black sunshade net, when sunshade in summer rate is 40%-70%, cooling-down effect improves about 20%-30%.
(3) through test, the service life of astigmatism cooling heat radiation prevention net of the present invention is 4-5, and for the plantation of plantation in summer vegetables of anti-season, can improve plantation survival rate 30-40%, improve yield of vegetables 20-28%, disease and pest incidence reduces 20-30%.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a preparation method for astigmatism cooling heat radiation prevention net, is characterized in that: comprise and prepare master batch step.
2. the preparation method of a kind of astigmatism cooling heat radiation prevention net according to claim 1, is characterized in that:
Describedly prepare master batch step: with parts by weight, the component of described master batch comprises:
Rutile type titanium white 426 parts
LDPE299 part
LLDPE212 part
Oleamide 13 parts
Cured 27 parts of PE
Far-infared ceramic powder 22 parts
Silane coupler 1 part.
3. the preparation method of a kind of astigmatism cooling heat radiation prevention net according to claim 1, is characterized in that:
Describedly prepare master batch step: with parts by weight, the component of described master batch comprises:
LDPE24.8 part
EVA5 part
LLDPE21 part
TPU0.8 part
Rutile type titanium white 42 parts
2.7 parts, PE wax
Oleamide 1.3 parts
Far-infared ceramic powder 2.2 parts
Silane coupler 0.2 part.
4. the preparation method of a kind of astigmatism cooling heat radiation prevention net according to claim 1, is characterized in that:
Describedly prepare master batch step: with parts by weight, the component of described master batch comprises:
LDPE37.6 part
LLDPE13 part
TPU0.9 part
Rutile type titanium white 42 parts
2.7 parts, PE wax
Oleamide 1.2 parts
Far-infared ceramic powder 2.2 parts
Silane coupler 0.4 part.
5., according to the preparation method of a kind of astigmatism cooling heat radiation prevention net of claim 2-4 described in one of them, it is characterized in that:
Described rutile type titanium white is: Du Pont titanium dioxide R-103, R-105, R-900, R-931 mix by weight 3:2:2:1.
6., according to the preparation method of a kind of astigmatism cooling heat radiation prevention net of claim 2-4 described in one of them, it is characterized in that:
Described far-infared ceramic powder: active constituent content is 99%, and average grain diameter is less than 0.5 μm.
7. the preparation method of a kind of astigmatism cooling heat radiation prevention net according to claim 1, is characterized in that:
Described preparation method also comprises fiber preparation.
8. the preparation method of a kind of astigmatism cooling heat radiation prevention net according to claim 7, is characterized in that:
It is shaping that described fiber preparation comprises traction.
9. the preparation method of a kind of astigmatism cooling heat radiation prevention net according to claim 8, is characterized in that:
Described traction is shaping: draw ratio is 5-6, and cooling water temperature is 10-15 DEG C;
The width of the fiber obtained is 3mm.
10. the preparation method of a kind of astigmatism cooling heat radiation prevention net according to claim 1, is characterized in that:
It is shaping that described preparation method also comprises establishment;
Described weaving forming: fiber weaving loom is woven into net.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510787465.0A CN105332091B (en) | 2015-11-17 | 2015-11-17 | A kind of preparation method of astigmatism cooling heat radiation prevention net |
| CN201710715055.4A CN107574505B (en) | 2015-11-17 | 2015-11-17 | Preparation method of light-scattering cooling thermal radiation protective net for agricultural facilities |
| CN201710715054.XA CN107541807B (en) | 2015-11-17 | 2015-11-17 | A kind of preparation method of agricultural facility astigmatism heat radiation cooling protection net |
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| CN201510787465.0A CN105332091B (en) | 2015-11-17 | 2015-11-17 | A kind of preparation method of astigmatism cooling heat radiation prevention net |
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| CN201710715055.4A Division CN107574505B (en) | 2015-11-17 | 2015-11-17 | Preparation method of light-scattering cooling thermal radiation protective net for agricultural facilities |
| CN201710715054.XA Division CN107541807B (en) | 2015-11-17 | 2015-11-17 | A kind of preparation method of agricultural facility astigmatism heat radiation cooling protection net |
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| CN201710715054.XA Active CN107541807B (en) | 2015-11-17 | 2015-11-17 | A kind of preparation method of agricultural facility astigmatism heat radiation cooling protection net |
| CN201710715055.4A Active CN107574505B (en) | 2015-11-17 | 2015-11-17 | Preparation method of light-scattering cooling thermal radiation protective net for agricultural facilities |
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| CN201710715055.4A Active CN107574505B (en) | 2015-11-17 | 2015-11-17 | Preparation method of light-scattering cooling thermal radiation protective net for agricultural facilities |
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Cited By (2)
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| CN112273116A (en) * | 2020-10-19 | 2021-01-29 | 西安工程大学 | Preparation method of morph-genetic structure carbon-modified sunshade net film material |
| WO2022148401A1 (en) * | 2021-01-07 | 2022-07-14 | 华中科技大学 | Wet-spun radiative cooling fiber, preparation method, and use thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107541807A (en) | 2018-01-05 |
| CN107574505B (en) | 2020-01-21 |
| CN105332091B (en) | 2017-10-10 |
| CN107541807B (en) | 2019-11-08 |
| CN107574505A (en) | 2018-01-12 |
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