CN105332091B - A kind of preparation method of astigmatism cooling heat radiation prevention net - Google Patents
A kind of preparation method of astigmatism cooling heat radiation prevention net Download PDFInfo
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- CN105332091B CN105332091B CN201510787465.0A CN201510787465A CN105332091B CN 105332091 B CN105332091 B CN 105332091B CN 201510787465 A CN201510787465 A CN 201510787465A CN 105332091 B CN105332091 B CN 105332091B
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- 230000002265 prevention Effects 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
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- 235000010215 titanium dioxide Nutrition 0.000 claims abstract description 23
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- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 claims abstract description 11
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- Greenhouses (AREA)
- Artificial Filaments (AREA)
- Protection Of Plants (AREA)
Abstract
The invention discloses a kind of preparation method of astigmatism cooling heat radiation prevention net, the preparation method includes preparing master batch step；Also include fiber preparation process and traction forming step.The master batch of the protection network includes component：Rutile type titanium white, LDPE, LLDPE, oleamide, PE are cured, far-infared ceramic powder, silane coupler.Astigmatism cooling heat radiation prevention net prepared by the present invention, in the case of full sun, its own temperature is lower 5-32 DEG C than conventional black sunshade net temperature.
Description
Technical field
The present invention relates to a kind of preparation method of astigmatism cooling heat radiation prevention net, astigmatism cooling heat radiation prevention net is applicable
In the agricultural production shadings such as summer vegetable cultivation, flower planting, the nursery of woods fruit, livestock-raising cooling, belong to agricultural technology field.
Background technology
Sunshade net is also known as shading net, and being that a kind of new agriculture, forestry, animal husbandry, fisheries promoted over China's nearly more than 10 year are special protects
Protect covering material.Play a part of after summer covering it is certain be in the light, keep off the rain, moisturizing, cooling.Also have after winter-spring season covering certain
Thermal insulation wetting effect.At present, sunshading net for agriculture use is that polyolefin is primary raw material, is woven into, added when manufacture is by wire drawing
Enter different dyes, just can make different colours sunshade net, change weft density, so that it may make the sunshade net of different shading rates.Hide
Screened postive is mainly used in summer, the irradiation of anti-burning sun, the harm of high temperature, it has also become vegetables, flowers, edible mushroom, nursery stock, medicinal material etc.
The protectiveness of crop cultivates the technical measures that one protected with aquatic products, poultry farming high temperature-proof mainly promotes.
At present, the sunshade net of market sale also has the light sunshade net in part based on black.Black sunshade net mainly passes through
Absorb sunlight and realize shading, light sunshade net is absorbed by selective reflecting realizes shading.Black sunshade net shading rate is high, have compared with
Good cooling-down effect.But found in actual agricultural production, due to black sunshade network technology and structural factor restriction, its shading, drop
Temperature effect can't meet modern agricultural production demand simultaneously.For example, spinach is the cold-resistant plant that To Be Protected from Heat, summer is planted to environment
It is required that it is harsh, cooling is realized with traditional sunshade net, it is necessary to which very high shading rate could meet cooling needs, but sunshade net hides
Light is too many, can influence the normal photosynthesis of spinach, influences plant nutrition Composition accumulation.
In a word, there is following defect in existing sunshade network technology：（1）Under sunshine, heat transfer is fast, and sunshade net own temperature is very high；
（2）Common sunshade net and air or periphery object heat-shift are more；Easily lift net ambient air temperature；（3）Black sunshade netlist
The far infrared radiation amount that face is produced is high；（4）Function is single, and shading, heat-insulated, cooling can not take into account simultaneously.
Therefore, there is not preferable heat radiation prevention net in agricultural production also.In transformation mode of agriculture, agricultural warp is improved
Under benefit of helping and the background of energy-saving and emission-reduction, it is badly in need of a kind of astigmatism cooling heat radiation prevention net.
The content of the invention
The problem to be solved in the present invention is a kind of preparation side of the not enough heat radiation prevention net that cools there is provided astigmatism for more than
Method, realizes following goal of the invention：
（1）Astigmatism cooling heat radiation prevention net is prepared, in the case of full sun, makes its own temperature than conventional black sunshade
Net temperature is low 5-32 DEG C.
（2）Astigmatism cooling heat radiation prevention net is prepared, it is not easy occur heat exchange with surrounding environment.
（3）Astigmatism cooling heat radiation prevention net is prepared, good radiation cooling function is made it have, reduces what protection network was produced
Far infrared radiation.
（4）The heat-insulated heat radiation regulation and control film of astigmatism is prepared, higher sunshade, cooling-down effect is made it have.
For achieving the above object, using following technical scheme：
A kind of preparation method of astigmatism cooling heat radiation prevention net, including prepare master batch step.
The following is the further improvement to above-mentioned technical proposal:
It is described to prepare master batch step：In parts by weight, the component of the master batch includes：
Rutile type titanium white426 parts
299 parts of LDPE
212 parts of LLDPE
13 parts of oleamide
Cured 27 parts of PE
22 parts of far-infared ceramic powder
1 part of silane coupler.
It is described to prepare master batch step：In parts by weight, the component of the master batch includes：
24.8 parts of LDPE
5 parts of EVA
21 parts of LLDPE
0.8 part of TPU
42 parts of rutile type titanium white
2.7 parts of PE waxes
1.3 parts of oleamide
2.2 parts of far-infared ceramic powder
0.2 part of silane coupler.
It is described to prepare master batch step：In parts by weight, the component of the master batch includes：
37.6 parts of LDPE
13 parts of LLDPE
0.9 part of TPU
42 parts of rutile type titanium white
2.7 parts of PE waxes
1.2 parts of oleamide
2.2 parts of far-infared ceramic powder
0.4 part of silane coupler.
Described rutile type titanium white is：Du Pont titanium dioxide R-103, R-105, R-900, R-931 are by weight 3:2:
2:1 mixes.
Described far-infared ceramic powder：Active constituent content is 99%, and average grain diameter is less than 0.5 μm.
The preparation method also includes fiber and prepared.
Prepared by described fiber include traction shaping.
Described traction shaping：Draw ratio is 5-6, and cooling water temperature is 10-15 DEG C；
The width of obtained fiber is 3mm.
Described preparation method also includes establishment shaping；
Described knitting forming：Fiber is woven into networking with weaving loom.
The present invention compared with prior art, has the advantages that：
（1）Astigmatism cooling heat radiation prevention net prepared by the present invention, in the case of full sun, its own temperature is more black than conventional
Color sunshade net temperature is low 5-32 DEG C.
（2）Astigmatism cooling heat radiation prevention net prepared by the present invention, in the case of full sun, compared with black sunshade net,
Protection network of the present invention reduces 5%-32% with ambient air or agricultural facility heat exchange.
（3）Astigmatism cooling heat radiation prevention net prepared by the present invention, in the case of full sun, the far infrared that its surface is produced
Radiation reduces 9%-60% than black sunshade net.
（4）The heat-insulated heat radiation prevention net of astigmatism prepared by the present invention, in the case of full sun, covering astigmatism cooling heat radiation
Protection network improves 20%-40% compared with covering black sunshade net to environment or earth's surface cooling-down effect；It can give and resist cold what To Be Protected from Heat
The growth of crop summer provides low temperature environment and suitable illumination, hence it is evident that improve the quality and yield of the cold-resistant crop that To Be Protected from Heat, together
When can also reduce pest and disease damage incidence 20-30%.
（5）The service life of astigmatism cooling heat radiation prevention net of the present invention is 4-5, and black sunshade net more normal than market makes
With life 2 years, investment use cost is greatly reduced.
Embodiment
A kind of astigmatism of embodiment 1 cooling heat radiation prevention net
A kind of preparing raw material of described astigmatism cooling heat radiation prevention net mainly has：Film forming resinous material, high refractivity are micro-
Powder material, far infrared micropowder material.
（1）Described wide spectrum printing opacity, the resin material of low-refraction：
Film forming resinous material can select the resins such as PVC, HDPE, LDPE, LLDPE；
It is preferred that low density polyethylene (LDPE) (LDPE), density is 0.915-0.940g/cm3, refractive index is 1.51,7.0 ~ 13
.0 the far infrared transmissivity of mu m waveband is high, is approximate far infrared light penetrating object.
（2）Described high refractivity micropowder material：
It can select rutile type titanium white（Refractive index 2.73）, anatase thpe white powder（Refractive index 2.55）, vulcanization zinc powder
（Refractive index 2.37）, antimony oxide micro mist（Refractive index 2.09-2.25）, zinc oxide ultra_fine powderses（Refractive index 2.02）, lithopone（Refractive index
1.84）；
It is preferred that rutile type titanium white, refractive index is 2.73, density is 4.26g/cm3, average grain diameter be not less than 0.6 μm,
Maximum particle diameter is not more than 1 μm；
Described rutile type titanium white is by Du Pont titanium dioxide R-103, R-105, R-900, R-931 by weight 3:2:2:
1 is formulated, and average grain diameter is controlled between 0.6-1 μm.
（3）Described far infrared micropowder material：
It is superfine white powder for far infrared ceramic micro powder（Al2O3、MgO、ZnO、SiO2、ZrO2And rare earth oxide
Mixture）, density:1.2-2g/cm3, average grain diameter is less than 0.5 μm, and all-wave radiance is more than 0.9, in the radiation of 8-14 mu m wavebands
Rate is 0.95.
A kind of preparation method of the astigmatism of embodiment 2 cooling heat radiation prevention net
Step 1, prepare master batch
（1）Formula of master batch
The master batch parts by weight of raw materials of the astigmatism cooling heat radiation prevention net, which is matched, is：
Rutile type titanium white426 parts
299 parts of LDPE
212 parts of LLDPE
13 parts of oleamide
Cured 27 parts of PE
22 parts of far-infared ceramic powder
1 part of silane coupler
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-
103rd, R-105, R-900, R-931 are by weight 3:2:2:1 mixes.
（2）Prepare astigmatism master batch
According to astigmatism cool heat radiation prevention net formula of master batch weigh LDPE, LLDPE, rutile type titanium white, PE waxes,
Oleamide, silane coupler, it is standby；
Above-mentioned load weighted raw material is added in single screw extrusion machine and carries out fusion plastification, from the thing of head die extrusion
Material obtains astigmatism master batch by sizing, traction, cooling, cutting action；
The helical angle of described single screw extrusion machine is 17 °；Coolant water temperature is 28 DEG C in described refrigerating work procedure.
（3）Weigh far-infared ceramic powder
Far-infared ceramic powder is the commodity Masterbatch of purchase；
Described far-infared ceramic powder：Active constituent content is 99%, and average grain diameter is less than 0.5 μm；
Above-mentioned Masterbatch, is weighed according to the formula of master batch of astigmatism cooling heat radiation prevention net, standby.
It is 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 for preparing, batch mixing,
Stir；
（2）Traction shaping；The uniform master batch of batch mixing is added in injection machine, by traction, cooling and shaping process, prevented
Protecting wire net flat fiber；Draw ratio is 5-6, and cooling water temperature is 10-15 DEG C；The width of obtained flat fiber is 3mm.
Flat fiber reaches 94% or so to the scattered power of sunlight
Step 3, knitting forming
The flat fiber prepared is passed through to the braiding of protection network weaving loom, astigmatism cooling heat radiation prevention net is made；With
The latitude of protection network is foundation through flat fiber radical in every 25 millimeters, is woven into 8 nets, 10 nets, 12 nets, 14 nets and 16
Root net；Wide cut can be woven into 90 centimetres, 150 centimetres, 160 centimetres, 200 centimetres, 220 centimetres, 250 centimetres, 300 lis as needed
Rice, the plurality of specifications such as 400 centimetres.
A kind of preparation method of the astigmatism of embodiment 3 cooling heat radiation prevention net
Step 1, prepare master batch
(1) formula of master batch
The master batch parts by weight of raw materials of astigmatism cooling heat radiation prevention net, which is matched, is：
24.8 parts of LDPE
5 parts of EVA
21 parts of LLDPE
0.8 part of TPU
42 parts of rutile type titanium white
2.7 parts of PE waxes
1.3 parts of oleamide
2.2 parts of far-infared ceramic powder
0.2 part of silane coupler
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-
103rd, R-105, R-900, R-931 are by weight 3:2:2:1 mixes.
（2）Prepare astigmatism master batch
According to astigmatism cool heat radiation prevention net formula of master batch weigh LDPE, LLDPE, rutile type titanium white, PE waxes,
Oleamide, EVA, TPU, silane coupler, it is standby；
Above-mentioned load weighted raw material is added in single screw extrusion machine and carries out fusion plastification, from the thing of head die extrusion
Material obtains astigmatism master batch by sizing, traction, cooling, cutting action；
The helical angle of described single screw extrusion machine is 17 °；Coolant water temperature is 28 DEG C in described refrigerating work procedure.
（3）Weigh far-infared ceramic powder
Far-infared ceramic powder is weighed using the method for embodiment 2.
It is prepared by step 2, fiber
Flat fiber preparation is carried out using the method for embodiment 2.
Step 3, knitting forming
Using the method knitting forming of embodiment 2.
A kind of preparation method of the astigmatism of embodiment 4 cooling heat radiation prevention net
Step 1, prepare master batch
(1) formula of master batch
The master batch parts by weight of raw materials of astigmatism cooling heat radiation prevention net, which is matched, is：
37.6 parts of LDPE
13 parts of LLDPE
0.9 part of TPU
42 parts of rutile type titanium white
2.7 parts of PE waxes
1.2 parts of oleamide
2.2 parts of far-infared ceramic powder
0.4 part of silane coupler
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-
103rd, R-105, R-900, R-931 are by weight 3:2:2:1 mixes.
（2）Prepare astigmatism master batch
According to astigmatism cool heat radiation prevention net formula of master batch weigh LDPE, LLDPE, rutile type titanium white, PE waxes,
Oleamide, TPU, silane coupler, it is standby；
Above-mentioned load weighted raw material is added in single screw extrusion machine and carries out fusion plastification, from the thing of head die extrusion
Material obtains diffusion layer master batch by sizing, traction, cooling, cutting action；
The helical angle of described single screw extrusion machine is 17 °；Coolant water temperature is 28 DEG C in described refrigerating work procedure.
（3）Weigh far-infared ceramic powder
Far-infared ceramic powder is weighed using the method for embodiment 2.
It is prepared by step 2, fiber
Flat fiber preparation is carried out using the method for embodiment 2.
Step 3, knitting forming
Using the method knitting forming of embodiment 2.
As a result detect：
（1）The astigmatism cooling heat radiation prevention net prepared to embodiment 2-4 carries out mechanical strength detection, and testing result is shown in Table
1；
Table 1
From table 1, the high mechanical strength of astigmatism cooling heat radiation prevention net, sunshade rate is high；
The tensile strength of 8 nets：Warp-wise is 480-500 N/50mm, and broadwise is 490-520 N/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 experiment, astigmatism of the present invention cooling heat radiation prevention net has good astigmatism sunshade function, in full sun
In the case of, sunlight hiding rare can reach 95%；
With good astigmatism heat insulating function, the scattering of the flat fiber of astigmatism cooling heat radiation prevention net of the present invention to sunlight
Rate reaches 94% or so；
With good radiation cooling function than black sunshade net surface temperature, in low 25 DEG C or so of summer, season in spring and autumn is low by 16
DEG C or so；
With higher cooling adumbral effect compared with black sunshade net, when summer sunshade rate is 40%-70%, cooling
Effect improves 20%-30% or so.
（3）Through experiment, the service life of astigmatism cooling heat radiation prevention net of the present invention is 4-5, anti-for summer plantation
Season vegetables plantation, can improve plantation survival rate 30-40%, improve yield of vegetables 20-28%, pest and disease damage incidence reduction 20-
30%。
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be with
Technical scheme described in foregoing embodiments is modified, or equivalent substitution is carried out to which part technical characteristic.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (1)
- The preparation method of heat radiation prevention net 1. a kind of astigmatism cools, it is characterised in that：Prepare, compile including preparing master batch, fiber Knit forming step；It is described to prepare master batch step：In parts by weight, the component of the master batch includes：24.8 parts of LDPE5 parts of EVA21 parts of LLDPE0.8 part of TPU42 parts of rutile type titanium white2.7 parts of PE waxes1.3 parts of oleamide2.2 parts of far-infared ceramic powder0.2 part of silane coupler；Described rutile type titanium white is：Du Pont titanium dioxide R-103, R-105, R-900, R-931 are by weight 3:2:2:1 mixes Conjunction is formed；Described far-infared ceramic powder：Active constituent content is 99%, and average grain diameter is less than 0.5 μm；Prepared by described fiber include adding master batch in injection machine, and by traction, cooling and shaping process, draw ratio is 5-6, cold But coolant-temperature gage is 10-15 DEG C；The width of obtained fiber is 3mm；Described knitting forming：Fiber is woven into networking with weaving loom；Described astigmatism cools heat radiation prevention net in the case of full sun, and sunlight hiding rare reaches 95%；The flat fiber of the astigmatism cooling heat radiation prevention net reaches 94% to the scattered power of sunlight；The astigmatism cooling heat radiation prevention net is used for the plantation of summer anti-season vegetables.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| CN201510787465.0A CN105332091B (en) | 2015-11-17 | 2015-11-17 | A kind of preparation method of astigmatism cooling heat radiation prevention net |
Applications Claiming Priority (1)
| 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 |
Related Child Applications (2)
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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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| CN201710715055.4A Active CN107574505B (en) | 2015-11-17 | 2015-11-17 | Preparation method of light-scattering cooling thermal radiation protective net for agricultural facilities |
| CN201510787465.0A Expired - Fee Related CN105332091B (en) | 2015-11-17 | 2015-11-17 | A kind of preparation method of astigmatism cooling heat radiation prevention net |
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| CN112273116B (en) * | 2020-10-19 | 2023-02-14 | 西安工程大学 | Preparation method of morph-genetic structure carbon-modified sunshade net film material |
| CN112853522A (en) * | 2021-01-07 | 2021-05-28 | 华中科技大学 | Wet spinning radiation refrigeration fiber, preparation method and application thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107541807B (en) | 2019-11-08 |
| CN105332091A (en) | 2016-02-17 |
| CN107574505A (en) | 2018-01-12 |
| CN107574505B (en) | 2020-01-21 |
| CN107541807A (en) | 2018-01-05 |
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