CN103738021B - High tenacity height light quality modification PO agriculture greenhouse film and preparation method thereof - Google Patents
High tenacity height light quality modification PO agriculture greenhouse film and preparation method thereof Download PDFInfo
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- CN103738021B CN103738021B CN201410017295.3A CN201410017295A CN103738021B CN 103738021 B CN103738021 B CN 103738021B CN 201410017295 A CN201410017295 A CN 201410017295A CN 103738021 B CN103738021 B CN 103738021B
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- 238000012986 modification Methods 0.000 title claims abstract description 20
- 230000004048 modification Effects 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000010408 film Substances 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000003851 corona treatment Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 12
- 239000010409 thin film Substances 0.000 claims abstract description 4
- 238000010096 film blowing Methods 0.000 claims abstract description 3
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 29
- 239000002994 raw material Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- -1 Polyethylene Polymers 0.000 claims description 7
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 7
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 230000003712 anti-aging effect Effects 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 241000607479 Yersinia pestis Species 0.000 abstract description 4
- 239000003905 agrochemical Substances 0.000 abstract description 4
- 201000010099 disease Diseases 0.000 abstract description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 4
- 230000012010 growth Effects 0.000 abstract description 4
- 230000029553 photosynthesis Effects 0.000 abstract description 4
- 238000010672 photosynthesis Methods 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 4
- 235000012055 fruits and vegetables Nutrition 0.000 abstract description 3
- 235000013311 vegetables Nutrition 0.000 description 6
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
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Landscapes
- Greenhouses (AREA)
- Protection Of Plants (AREA)
Abstract
The present invention relates to a kind of high tenacity height light quality modification PO agriculture greenhouse film and preparation method thereof, after three-layer co-extruded by internal layer, middle level and skin, obtained product after surface application coating liquid, wherein internal layer, middle level and outer field mass ratio are 7-17; 7.5-19; 7.1-16; Step is adopt three-layer co-extruded film blowing device, respectively interior, in, outer factory formula prepares, after blown film unit inflation, thin film exterior layer is through sided corona treatment, the surface tension requirements of face reaches 42 dyne, coating liquid is coated on outer field surface through coating equipment, after drying, obtains goods.Long-acting anti-dropping fog dispersal function of the present invention, light transmittance is high, and haze value is low, fully meets the growth demand of plant, prevents disease and pest, reduces the use of agricultural chemicals, improves quality, increase yield and the income to photosynthesis of plant and fruits and vegetables.
Description
Technical field
The present invention relates to a kind of awning film, be specifically related to a kind of high tenacity height light quality modification PO agriculture greenhouse film and preparation method thereof.Background technology
Plant the agriculture greenhouse film of various crop, from the classification of base resin application aspect, can be divided into three major types: a class is PVC base resin, two classes are PE base resins, the agriculture greenhouse film of three classes to be EVA base resins be carrier; Functionally be divided into: Ageing-resistant film, ageing-resistant drip defogging film, Ageing-resistant film anti-dropping film; Be divided into from dedicated film aspect: vegetables dedicated film, fruits dedicated film, flowers dedicated film etc.The processing technology taked is all inner additive type.Owing to adding the auxiliary agent of part small-molecular-weight in the fabrication process, migration velocity is mostly about half a year.When the higher area of some temperature uses inner additive type agriculture greenhouse film, migration velocity is too fast, the drip fog dispersal phase is too short, only reach 3 months, can not meet the demand of plant growth, have impact on the growth of plant and cause the generation of canopy film disease and pest, vegetable grower is caused to spray a large amount of agricultural chemicals, its result causes Vegetables and fruits residues of pesticides to exceed standard, and compromises the healthy of people, and has caused the phenomenons such as the quality dispute of vegetable grower and manufacturer.
Summary of the invention
The object of this invention is to provide a kind of high tenacity height light quality modification PO agriculture greenhouse film and preparation method thereof, there is long-acting anti-dropping fog dispersal function, light transmittance is high, mist degree is little, fully meet the growth demand of plant, prevent disease and pest, reduce the use of agricultural chemicals, improve the quality to photosynthesis of plant and fruits and vegetables, increase crop yield and farmers' income.
High tenacity height light quality modification PO agriculture greenhouse film of the present invention, after three-layer co-extruded by internal layer, middle level and skin, obtained product after surface application coating liquid, wherein internal layer, middle level and outer field mass ratio are 7-17:7.5-19:7.1-16; Classification and the mass fraction thereof of internal layer, middle level and outer field raw material are composed as follows:
The mass fraction of internal layer raw material:
Polyethylene from high pressure process: 3-7 part, MLLDPE2005HH:0.5-2 part, LLDPE:3-6 part, masterbatch 1:0.5-2 part;
The mass fraction of middle level raw material:
MLLDPE2005HH:3-7 part, POE7467:0.5-2 part, EVA443:0.5-2 part, LLDPE:2-4 part, masterbatch 2,0.5-2 part, masterbatch 3:1-2 part;
The mass fraction of outer raw material:
Polyethylene from high pressure process: 3-7 part, POE7467:0.5-1 part, LLDPE:3-5 part, masterbatch 2:0.5-2 part, masterbatch 4:0.1-1 part.
Wherein, preferred LDPE2420D or LDPE2426F of polyethylene from high pressure process; LDPE2420D manufacturer is CSPC company, and LDPE2426F manufacturer is Yang Zi BASF AG.
POE7467 is polyolefin elastomer, and manufacturer is Dow Chemical company.
MLLDPE2005HH is metallocene PE, and manufacturer is Exxon Mobil company.
EVA443 is polyethylene vinyl acetate copolymer, and manufacturer is LG Corp of South Korea.
The preferred LLDPE1001XV of linear polyethylene LLDPE, manufacturer is Exxon Mobil company.
Masterbatch 1 is single anti-aging mother material, preferred masterbatch 944, and manufacturer is Shandong Qing Tiansu work Co., Ltd.
Masterbatch 2 is single anti-aging mother material, preferred masterbatch 362, and manufacturer is Shandong Qing Tiansu work Co., Ltd.
Masterbatch 3 is internal stress masterbatch, preferred silica, and manufacturer is Shandong Qing Tiansu work Co., Ltd.
Masterbatch 4 is corona masterbatch, preferred antistatic additive 302, and manufacturer is Shandong Qing Tiansu work Co., Ltd.
The preferred QT2014 of coating liquid, manufacturer is Shandong Qing Tiansu work Co., Ltd.
Every square of content of coating liquid is 12-15g/m
2.
Containing hydroxyl pole group [-OH] and carboxyl pole group [-COOH] in coating liquid.
Resin polyethylene-polyvinyl acetate copolymer the EVA443 added in formula containing low pole improves the heat-insulating property of film article.Add the heat preserving agent internal stress masterbatch of enough layer structures in this external formula, thus reach the object of high insulation high transparency.
The preparation method of high tenacity height light quality modification PO agriculture greenhouse film of the present invention:
Adopt three-layer co-extruded film blowing device, respectively interior, in, outer factory formula prepares, after blown film unit inflation, thin film exterior layer is through sided corona treatment, the surface tension of face reaches 42 dyne, coating liquid is coated on the surface of thin film exterior layer through coating equipment, after drying, obtains goods.
The preparation method of high tenacity height light quality modification PO agriculture greenhouse film of the present invention, concrete steps are as follows:
Material is prepared burden according to factory formula, then internal layer, middle level, outer field material are carried out respectively batch mixing to even, extrude, then three are extruded after unit is extruded into head compound, carry out inflation, through the supreme traction deflector roll of steady bubble frame, after sided corona treatment, then after giving second traction, enter coating liquid bath to apply film article, and control the hauling speed of overlay, after drying, then carry out three tractions, after deflector roll, enter the 4th traction, and carry out folding, rolling, obtain product.
The voltage of sided corona treatment is 380-220V.
Hauling speed is 30-50m/min.
The temperature of drying is 70-90 DEG C.
The present invention makes the product surface tension distribution after corona even, improves the adhesive force of coating liquid, ensure that the quality of plastic sheeting for farm use product.Solving because polyvinyl resin is apolar substance, when carrying out sided corona treatment to film top layer, often not reaching 42 dyne, occur that a large amount of random spark spills, cause film surface tension force uneven, thus impact coating effect, affect the problem of product quality.
The present invention is used for agriculture growing vegetables and horticultural facility.
Compared with prior art, the present invention has following outstanding effect:
Present invention achieves the drip fog dispersal function reaching 1-3, light transmittance can reach 93-95%, and haze value can reach 9-12%, fully meets the growth demand of plant, prevents disease and pest, decrease the use of agricultural chemicals; Improve the quality to photosynthesis of plant and fruits and vegetables, add output and income, have significant Social benefit and economic benefit, improve 2-5 DEG C than other type awning film temperature of shed.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
The high tenacity height light quality modification PO agriculture greenhouse film of the present embodiment, by the three-layer co-extruded obtained product of internal layer, middle level and skin, in mass fraction, internal layer, middle level and outer raw material are as shown in table 1:
The mass fraction of table 1 internal layer, middle level and outer raw material
Coating liquid QT2014 applies as every square of content is 13g/m
2
The preparation method of the present embodiment high tenacity height light quality modification PO agriculture greenhouse film, concrete steps are as follows:
Material is prepared burden according to factory formula, then internal layer, middle level, outer field material are carried out respectively batch mixing to even, extrude, then three are extruded after unit is extruded into head compound, carry out inflation, through the supreme traction deflector roll of steady bubble frame, after sided corona treatment, then after giving second traction, enter coating liquid bath to apply film article, and control the hauling speed of overlay, after drying, then carry out three tractions, after deflector roll, enter the 4th traction, and carry out folding, rolling, obtain product.
Wherein, the voltage of sided corona treatment is 380V.
Hauling speed is 50m/min.
The temperature of drying is 90 DEG C.
Embodiment 2
The high tenacity height light quality modification PO agriculture greenhouse film of the present embodiment, by the three-layer co-extruded obtained product of internal layer, middle level and skin, in mass fraction, internal layer, middle level and outer raw material are as shown in table 2:
The mass fraction of table 2 internal layer, middle level and outer raw material and coating liquid
Coating liquid QT2014 applies as every square of content is 15g/m
2
The preparation method of the present embodiment high tenacity height light quality modification PO agriculture greenhouse film is as follows:
Material is prepared burden according to factory formula, then internal layer, middle level, outer field material is carried out respectively batch mixing to evenly, extrude, then three are extruded after unit is extruded into head compound, carry out inflation, through the supreme traction deflector roll of steady bubble frame, after sided corona treatment, then after second traction, enter coating groove and film article is applied, and control the hauling speed of overlay, after drying, then carry out three tractions, after deflector roll, enter the 4th traction, and carry out folding, rolling, obtain product.
Wherein, the voltage of sided corona treatment is 220V.
Hauling speed is 40m/min.
The temperature of drying is 80 DEG C.
Embodiment 3
The high tenacity height light quality modification PO agriculture greenhouse film of the present embodiment, by the three-layer co-extruded obtained product of internal layer, middle level and skin, in mass fraction, internal layer, middle level and outer raw material are as shown in table 3:
The mass fraction of table 3 internal layer, middle level and outer raw material and coating liquid
Coating liquid QT2014 applies as every square of content is 12g/m
2
The preparation method of the present embodiment high tenacity height light quality modification PO agriculture greenhouse film is as follows:
Material is prepared burden according to factory formula, then internal layer, middle level, outer field material are carried out respectively batch mixing to even, extrude, then three are extruded after unit is extruded into head compound, carry out inflation, through the supreme traction deflector roll of steady bubble frame, after sided corona treatment, then after giving second traction, enter coating liquid bath to apply film article, and control the hauling speed of overlay, after drying, then carry out three tractions, after deflector roll, enter the 4th traction, and carry out folding, rolling, obtain product.
Wherein, the voltage of sided corona treatment is 380V.
Hauling speed is 30m/min.
The temperature of drying is 70 DEG C.
The quality index testing result of embodiment 1-3 contrasts with national standard, as table 4:
The quality index testing result of table 4 embodiment 1-3 and national standard
Interpretation of result:
The raising of visible light transmittance rate, is conducive to the photosynthesis of plant, particularly at northern China cold district advantageously in the growth of plant;
The reduction of haze value shows that goods do not contain the chemical composition of inorganic filler and small-molecular-weight, overcomes the melt fracture of goods, improves intensity and the elongation at break of goods;
Achieve drip 400 days-600 days phase of fog dispersal, improve twice to four times than the interior agriculture greenhouse film dosing method, meet the growth demand of crop, add the income of user, also solve the dispute problem that vegetable grower and producer occur because of quality simultaneously.
From above analysis indexes, the high tenacity height light quality modification PO agriculture greenhouse film of new generation being feature with long-acting anti-dropping fog dispersal is the direction of China's development in agricultural science and technology.
Claims (5)
1. a high tenacity height light quality modification PO agriculture greenhouse film, is characterized in that, after three-layer co-extruded by internal layer, middle level and skin, and obtained product after surface application coating liquid, wherein internal layer, middle level and outer field mass ratio are 7-17:7.5-19:7.1-16; Classification and the mass fraction thereof of internal layer, middle level and outer field raw material are composed as follows:
The mass fraction of internal layer raw material:
Polyethylene from high pressure process: 3-7 part, MLLDPE2005HH:0.5-2 part, LLDPE:3-6 part, masterbatch 1:0.5-2 part;
The mass fraction of middle level raw material:
MLLDPE2005HH:3-7 part, POE7467:0.5-2 part, EVA443:0.5-2 part, LLDPE:2-4 part, masterbatch 2,0.5-2 part, masterbatch 3:1-2 part;
The mass fraction of outer raw material:
Polyethylene from high pressure process: 3-7 part, POE7467:0.5-1 part, LLDPE:3-5 part, masterbatch 2:0.5-2 part, masterbatch 4:0.1-1 part;
Single anti-aging mother material of masterbatch 1 is masterbatch 944; Single anti-aging mother material of masterbatch 2 is masterbatch 362; Masterbatch 3 is internal stress masterbatch; Masterbatch 4 is corona masterbatch, and internal stress masterbatch is silica; Corona masterbatch is antistatic additive 302.
2. high tenacity height light quality modification PO agriculture greenhouse film according to claim 1, is characterized in that, preferred LDPE2420D or LDPE2426F of polyethylene from high pressure process.
3. high tenacity height light quality modification PO agriculture greenhouse film according to claim 1, it is characterized in that, coating liquid is QT2014.
4. high tenacity height light quality modification PO agriculture greenhouse film according to claim 1, it is characterized in that, every square of content of coating liquid is 12-15g/m
2.
5. a preparation method for high tenacity height light quality modification PO agriculture greenhouse film according to claim 1, it is characterized in that, step is as follows:
Adopt three-layer co-extruded film blowing device, respectively interior, in, outer factory formula prepares, after blown film unit inflation, thin film exterior layer is through sided corona treatment, the surface tension of face reaches 42 dyne, is coated on outer field surface by coating liquid, obtains goods after drying through coating equipment;
The voltage of sided corona treatment is 380-220V;
Hauling speed is 30-50m/min;
The temperature of drying is 70-90 DEG C.
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| CN201410017295.3A CN103738021B (en) | 2014-01-15 | 2014-01-15 | High tenacity height light quality modification PO agriculture greenhouse film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105479708A (en) * | 2015-11-25 | 2016-04-13 | 罗敏聪 | Production equipment for agricultural PO light-conversion film |
| CN105623069B (en) * | 2016-03-11 | 2017-11-03 | 淄博市临淄宽力塑料制品厂 | Light splitting ecology agriculture greenhouse cumulative film and preparation method thereof |
| CN109006052B (en) * | 2018-05-07 | 2020-09-08 | 浙江工贸职业技术学院 | Agricultural greenhouse plastic composite film and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040034416A (en) * | 2002-10-14 | 2004-04-28 | 미쓰비시 폴리에스테르 필름 지엠비에치 | Multilayer Biaxially Oriented Polyester Film, Process for its Production and Its Use |
| CN102924797A (en) * | 2011-08-10 | 2013-02-13 | 中国石油天然气股份有限公司 | Weather-resistant polyethylene agricultural film resin composition and preparation method thereof |
| CN103264563A (en) * | 2013-06-04 | 2013-08-28 | 河南省银丰塑料有限公司 | Three-layer co-extruded EVA (ethylene-vinyl acetate copolymer) long-life fog-dissipation environment-friendly multifunctional greenhouse film |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040034416A (en) * | 2002-10-14 | 2004-04-28 | 미쓰비시 폴리에스테르 필름 지엠비에치 | Multilayer Biaxially Oriented Polyester Film, Process for its Production and Its Use |
| CN102924797A (en) * | 2011-08-10 | 2013-02-13 | 中国石油天然气股份有限公司 | Weather-resistant polyethylene agricultural film resin composition and preparation method thereof |
| CN103264563A (en) * | 2013-06-04 | 2013-08-28 | 河南省银丰塑料有限公司 | Three-layer co-extruded EVA (ethylene-vinyl acetate copolymer) long-life fog-dissipation environment-friendly multifunctional greenhouse film |
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