CN108081719A - Diffusing scattering polyethylene greenhouse film and preparation method - Google Patents
Diffusing scattering polyethylene greenhouse film and preparation method Download PDFInfo
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- CN108081719A CN108081719A CN201711384879.4A CN201711384879A CN108081719A CN 108081719 A CN108081719 A CN 108081719A CN 201711384879 A CN201711384879 A CN 201711384879A CN 108081719 A CN108081719 A CN 108081719A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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Abstract
The present invention relates to a kind of diffusing scattering polyethylene greenhouse films and preparation method thereof, and including outer layer, middle level and internal layer, outer layer is the stream drop layer of awning film, and middle level is the insulating layer of awning film, and internal layer is the long-lived layer of awning film；Wherein, the diffusing scattering masterbatch of 6 7wt% is added in outer layer, the diffusing scattering masterbatch of 2 3wt% is added in middle level, and internal layer adds 1 2wt% diffusing scattering masterbatch.The present invention can accomplish that diffusing scattering function is synchronous with the agricultural film service life in addition to possessing stream drop function；It is scientific and reasonable, simple and practicable invention also provides the preparation method of diffusing scattering polyethylene greenhouse film.
Description
Technical field
The invention belongs to agricultural film preparing technical fields, and in particular to a kind of diffusing scattering polyethylene greenhouse film and its preparation side
Method.
Background technology
At present, position is at the forefront in the world for China's plastic film yield and consumption figure, and quickly from plain edition agriculture
Film changes to functional form functional membrane.But compared with developed countries and China's agricultural development demand, there are still sizable differences
Away from：Mainly functional membrane less varieties and function is single are limited only to ageing-resistant stream drop fog dispersal and transparent heat insulating function at present, and
Auxiliary agent depends on the external producer such as Japan, South Korea, U.S., and national independent research and development capacity is weaker, and external producer occupies
Most domestic middle and high-end market share.The "shopping basket' project be the important channel increased farmers' income and stable price,
It stabilizes the market, ensure the basic condition that people's lives need, with the construction of the "shopping basket' project in all parts of the country, facilities vegetable life
The continuous enlargement of production scale, cauline leaf dish planting proportion substantially rises in canopy room；The rain shelter cultivation area that accumulation of heat is not required is also more next
It is bigger；In addition, requirement of the consumer to product quality is higher and higher, such as requirement, the requirement of mouthfeel of the fresh and tender degree of cauline leaf dish；It is raw
Production person is then increasingly enhanced the consciousness for improving operating environment, it would be desirable to be planted in the environment of relative comfort.This is resulted in
There is an urgent need to have the function of the appearance of the functional awning film product of a new generation of the diffusing scattering of specificity, diffusing scattering functional membrane in market
Importance and status also increasingly show.
The content of the invention
The object of the present invention is to provide a kind of diffusing scattering polyethylene greenhouse films and preparation method thereof, flow drop function except possessing
Outside, it can accomplish that diffusing scattering function is synchronous with the agricultural film service life；Invention also provides the preparations of diffusing scattering polyethylene greenhouse film
Method, it is scientific and reasonable, simple and practicable.
A kind of diffusing scattering polyethylene greenhouse film of the present invention, including outer layer, middle level and internal layer, outer layer is awning film
Stream drop layer, middle level is the insulating layer of awning film, and internal layer is the long-lived layer of awning film；Wherein, the unrestrained of 6-7wt% is added in outer layer
Masterbatch is scattered, the diffusing scattering masterbatch of 2-3wt%, internal layer addition 1-2wt% diffusing scattering masterbatch are added in middle level.
Stream drop layer, insulating layer, long-lived three layers of raw materials for production of layer are made of the raw material of following weight percent：
Greenhouse film inner layer (long-lived layer)：
Awning film middle level (insulating layer)：
Polyethylene raw material 87%-88%
Keep the temperature masterbatch 10%
Diffusing scattering masterbatch 2%-3%
Awning film outer layer (stream drop layer)：
Polyethylene raw material 88%-89%
Stream drop fog dispersal masterbatch 10%
Diffusing scattering masterbatch 1%-2%.
The long-lived masterbatch is made of the raw material of following weight percent：
The heat preservation masterbatch is made of the raw material of following weight percent：
Polyethylene powder 81%-84%
Drip agent 12%-14%
Heat preserving agent 4%-5%.
The stream drop fog dispersal masterbatch is made of the raw material of following weight percent：
Polyethylene powder 83%-85%
Drip agent 14%-16%
Liquid antifogging agent 1%.
The diffusing scattering masterbatch is made of the raw material of following weight percent：
The polyethylene raw material refer to it is outer in three layers by low density polyethylene (LDPE), linear low density polyethylene, metallocene
The basic material of one or more compositions in three kinds of raw materials of polyethylene.The polyethylene raw material of greenhouse film inner layer is by low density polyethylene
Alkene, linear low density polyethylene, metallocene PE press 2:3：5 ratio mixing；The polyethylene raw material in awning film middle level is by low
Density polyethylene and linear low density polyethylene press 3:7 ratio mixing；The polyethylene raw material of awning film outer layer is by low-density
Polyethylene and linear low density polyethylene press 3:7 ratio mixing.
The polyethylene powder is the polyethylene raw material without modification；The drip agent component is fat
Acid polyol ester, polyoxyethylene carboxylate or polyoxyethylene alkyl amine；The light stabilizer is 622 or 944；Described is anti-
Oxygen agent is 1010 or 168；The heat preserving agent is kaolin, diatomite or talcum powder.
The liquid antifogging agent is fluorine surfactant, preferably TS-403.The lubricant moistens for zinc stearate class
Lubrication prescription；The dispersant is aliphatic amide type dispersant；The coupling agent is titanate coupling agent；The nanometer is overflow
Scattering auxiliary agent is NANO type scattering function auxiliary agents.
The manufacturer of polyethylene powder 7042 is Qilu Petrochemical Co., Ltd.
The manufacturer of drip agent LY-8 is Linan auxiliary agent Chemical Co., Ltd..
The manufacturer of light stabilizer 622 and 944 is Beijing Big Dipper auxiliary agent Co., Ltd.
Antioxidant 1010 and 168 manufacturer are Beijing Big Dipper auxiliary agent Co., Ltd.
The manufacturer of liquid antifogging agent TS-403 is Dalian Jin Long Chemical Co., Ltd.s.
The manufacturer of coupling agent TMC-201 is 100,000 Chemical Co., Ltd. of Shandong.
The manufacturer of nanometer diffusing scattering auxiliary agent NANO-1 is beautiful jade new material Co., Ltd of Nanjing Zhouning County.
The preparation method of diffusing scattering polyethylene greenhouse film of the present invention, step are as follows：
(1) preparation of long-lived masterbatch
Using high-speed mixer by after polyethylene powder, drip agent, light stabilizer, antioxidant proportionally mixed at high speed,
It adds in mixer to mediate, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, longevity masterbatch is made；
(2) preparation of masterbatch is kept the temperature
Using high-speed mixer by after polyethylene powder, drip agent, heat preserving agent proportionally mixed at high speed, mixer is added in
It mediates, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, heat preservation masterbatch is made；
(3) preparation of stream drop fog dispersal masterbatch
Using high-speed mixer by after polyethylene powder, drip agent, antifogging agent proportionally mixed at high speed, mixer is added in
It mediates, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, stream drop masterbatch is made；
(4) preparation of diffusing scattering masterbatch
Using high-speed mixer by polyethylene powder, lubricant, dispersant, coupling agent, nanometer diffusing scattering auxiliary agent according to than
It after example mixed at high speed, adds in mixer and mediates, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, be made
Diffusing scattering masterbatch.
Three layers of raw material are by three-layer co-extruded Blown-film line blow molding to get diffusing scattering polyethylene greenhouse film.
Diffusing scattering polyethylene functional awning film production procedure of the present invention is as follows：
The present invention is by choosing most suitable auxiliary agent, ensures between various auxiliary agents it is synergistic effect, without mutual negative
Influence, allocate new formulation technique, utmostly using the function of nanometer diffusing scattering auxiliary agent, inside, it is domestic and abroad it is three-layer co-extruded in
Add in a certain proportion of diffusing scattering masterbatch, internal layer need to add a certain proportion of EVA, it is often more important that it is interior, in, outer three layers of need meet
Certain proportion, i.e. internal layer >=6%, middle level≤3%, internal layer≤2%, this three layers of mode added can make diffusing scattering masterbatch
Effect greatly reinforces, and advantage is minimum in the migration loss speed in nanometer diffusing scattering auxiliary agent in film, ensure that diffusing scattering function
Persistence.
Diffusing scattering polyethylene greenhouse film of the present invention is that three-layer co-extruded equipment is completed.
For diffusing scattering polyethylene greenhouse film in addition to possessing stream drop function, the present invention accomplishes diffusing scattering by new addition manner
Function is synchronous with the agricultural film service life；It is scientific and reasonable, simple invention also provides the preparation method of diffusing scattering polyethylene greenhouse film
It is easy.
Diffusing scattering polyethylene functional awning film has the characteristic that diffusion light penetrates, and is particularly suitable for the need of plant growth
Will, due to changing single direct projection light radiation, more preferable, light distribution evenly is made it have, crop can be made in limb, blade back
Also illumination can be subject to, so as to promote photosynthesis；Plant can be increased, joint number increases, and blade area, the number of sheets and female flower bud grow
Increase than general function film, make burning for limb that crop is less and fruit, crop yield and quality can not only improved, and
And have effects that more effectively to utilize canopy room area.Due to the shade of no Greenhouse building, thus when morning and evening illumination is weak light transmittance compared with
Height, quick heating；Light transmittance reduces when noon illumination is strong, beneficial to sunshade, slows down the rising of canopy temperature.Therefore, diffusing scattering film can prevent height
Warm season and noon canopy temperature are excessively high, are conducive to temperature of shed stabilization, and can shorten growth cycle, the yield and product that improve crop
Matter.
Compared with prior art, the invention has the advantages that：
Diffusing scattering polyethylene greenhouse film of the present invention and preparation method thereof in addition to possessing stream drop function, can accomplish diffusing scattering
Function is synchronous with the agricultural film service life；It is scientific and reasonable, simple invention also provides the preparation method of diffusing scattering polyethylene greenhouse film
It is easy.
Specific embodiment
With reference to embodiment, the present invention is described further.
Embodiment 1
The present embodiment outer layer, middle level, internal layer add diffusing scattering masterbatch, and the toatl proportion in film is 10%
Greenhouse film inner layer matches：The long-lived masterbatch of 73% polyethylene raw material (182.5kg)+10%EVA (25kg)+10%
(25kg)+7% diffusing scattering masterbatch (17.5kg) (total 250kg pours into batch mixer and is uniformly mixed)；
Awning film middle level matches：88% polyethylene raw material (220kg)+10% keeps the temperature masterbatch (25kg)+2% diffusing scattering masterbatch
(5kg) (total 250kg pours into batch mixer and is uniformly mixed)；
Awning film outer layer matches：Stream drop masterbatch (25kg)+1% diffusing scattering of 89% polyethylene raw material (222.5kg)+10% is female
Material (2.5kg) (total 250kg pours into batch mixer and is uniformly mixed)；
The long-lived masterbatch weight per package is 25kg, is made of the raw material of following weight：
The heat preservation masterbatch weight per package is 25kg, is made of the raw material of following weight：
Polyethylene powder (Qilu Petrochemical Co., Ltd 7042) 20.25kg
Drip agent (Linan auxiliary agent Chemical Co., Ltd. LY-8) 3.5kg
Heat preserving agent (hundred million peak Science and Technology Ltd. talcum powder of Guangzhou) 1.25kg
The stream drop fog dispersal masterbatch weight per package is 25kg, is made of the raw material of following weight：
Polyethylene powder (Qilu Petrochemical Co., Ltd 7042) 20.75kg
Drip agent (Linan auxiliary agent Chemical Co., Ltd. LY-8) 4kg
Liquid antifogging agent (Dalian Jin Long Chemical Co., Ltd. TS-403) 0.25kg
The diffusing scattering masterbatch often wraps weight 25kg, is made of the raw material of following weight：
Embodiment 2
The present embodiment outer layer, middle level, internal layer add diffusing scattering masterbatch, and the toatl proportion in film is 10%
Greenhouse film inner layer matches：The long-lived masterbatch (25kg) of 74% polyethylene raw material (185kg)+10%EVA (25kg)+10%
+ 6% diffusing scattering masterbatch (15kg) (total 250kg pours into batch mixer and is uniformly mixed)；
Awning film middle level matches：It is female that 87% polyethylene raw material (217.5kg)+10% keeps the temperature masterbatch (25kg)+3% diffusing scattering
Material (7.5kg) (total 250kg pours into batch mixer and is uniformly mixed)；
Awning film outer layer matches：Stream drop masterbatch (25kg)+1% diffusing scattering of 89% polyethylene raw material (222.5kg)+10% is female
Material (2.5kg) (total 250kg pours into batch mixer and is uniformly mixed)；
The long-lived masterbatch weight per package is 25kg, is made of the raw material of following weight：
The heat preservation masterbatch weight per package is 25kg, is made of the raw material of following weight：
Polyethylene powder (7042) 21kg
Drip agent (LY-8) 3kg
Heat preserving agent (talcum powder) 1kg
The stream drop fog dispersal masterbatch weight per package is 25kg, is made of the raw material of following weight：
Polyethylene powder (7042) 21.25kg
Drip agent (LY-8) 2.5kg
Liquid antifogging agent (TS-403) 0.25kg
The diffusing scattering masterbatch often wraps weight 25kg, is made of the raw material of following weight：
Embodiment 3
The present embodiment outer layer, middle level, internal layer add diffusing scattering masterbatch, and the toatl proportion in film is 10%
Greenhouse film inner layer matches：The long-lived masterbatch of 73.5% polyethylene raw material (183.75kg)+10%EVA (25kg)+10%
(25kg)+6.5% diffusing scattering masterbatch (16.25kg) (total 250kg pours into batch mixer and is uniformly mixed)；
Awning film middle level matches：88% polyethylene raw material (220kg)+10% keeps the temperature masterbatch (25kg)+2% diffusing scattering masterbatch
(5kg) (total 250kg pours into batch mixer and is uniformly mixed)；
Awning film outer layer matches：The stream drop masterbatch of 88.5% polyethylene raw material (221.25kg)+10% (25kg)+1.5% is unrestrained
Scattering masterbatch (3.75kg) (total 250kg pours into batch mixer and is uniformly mixed)；
The long-lived masterbatch weight per package is 25kg, is made of the raw material of following weight：
The heat preservation masterbatch weight per package is 25kg, is made of the raw material of following weight：
Polyethylene powder (7042) 20.75kg
Drip agent (LY-8) 3.25kg
Heat preserving agent (talcum powder) 1kg
The stream drop fog dispersal masterbatch weight per package is 25kg, is made of the raw material of following weight：
Polyethylene powder (7042) 21kg
Drip agent (LY-8) 3.75kg
Liquid antifogging agent (TS-403) 0.25kg
The diffusing scattering masterbatch often wraps weight 25kg, is made of the raw material of following weight：
The preparation method of the diffusing scattering polyethylene greenhouse film of embodiment 1-3, step are as follows：
(1) preparation of long-lived masterbatch
Using high-speed mixer by after polyethylene powder, drip agent, light stabilizer, antioxidant proportionally mixed at high speed,
It adds in mixer to mediate, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, longevity masterbatch is made；
(2) preparation of masterbatch is kept the temperature
Using high-speed mixer by after polyethylene powder, drip agent, heat preserving agent proportionally mixed at high speed, mixer is added in
It mediates, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, heat preservation masterbatch is made；
(3) preparation of stream drop fog dispersal masterbatch
Using high-speed mixer by after polyethylene powder, drip agent, antifogging agent proportionally mixed at high speed, mixer is added in
It mediates, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, stream drop masterbatch is made；
(4) preparation of diffusing scattering masterbatch
Using high-speed mixer by polyethylene powder, lubricant, dispersant, coupling agent, nanometer diffusing scattering auxiliary agent according to than
It after example mixed at high speed, adds in mixer and mediates, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, be made
Diffusing scattering masterbatch.
Three layers of raw material are by three-layer co-extruded Blown-film line blow molding to get diffusing scattering polyethylene greenhouse film.
Blanking ratio is adjusted, according to internal layer 1, middle level 1, the blanking ratio of outer layer 1 is produced by flow blown film.Technological temperature is set
According to shown in table 1.
1 blow molding temperature (DEG C) of table
Comparative example 1
The present embodiment formula is chosen only adds 10% nanometer of diffusing scattering masterbatch in outer layer
Greenhouse film inner layer matches：80% polyethylene raw material+10%EVA+10% longevities masterbatch (it is equal to pour into batch mixer mixing
It is even)；
Awning film middle level matches：90% polyethylene raw material+10% heat preservation masterbatch (pouring into batch mixer to be uniformly mixed)；
Awning film outer layer matches：80% polyethylene raw material+10% stream drop+10% diffusing scattering masterbatch of masterbatch (pours into batch mixer
It is uniformly mixed).
Comparative example 2
The present embodiment formula is chosen only adds the proportioning of 10% nanometer of diffusing scattering masterbatch in middle level
Greenhouse film inner layer matches：80% polyethylene raw material+10%EVA+10% longevities masterbatch (it is equal to pour into batch mixer mixing
It is even)；
Awning film middle level matches：80% polyethylene raw material+10% heat preservation+10% diffusing scattering masterbatch of masterbatch (pours into batch mixer
It is uniformly mixed)；
Awning film outer layer matches：90% polyethylene raw material+10% stream drop masterbatch (pouring into batch mixer to be uniformly mixed).
The present embodiment is identical with the preparation method of embodiment 1.
Comparative example 3
The present embodiment formula is chosen only adds the proportioning of 10% nanometer of diffusing scattering masterbatch in internal layer
Greenhouse film inner layer matches：+ 10% diffusing scattering masterbatch of 70% polyethylene raw material+10%EVA+10% longevities masterbatch (falls
Enter batch mixer to be uniformly mixed)；
Awning film middle level matches：90% polyethylene raw material+10% heat preservation masterbatch (pouring into batch mixer to be uniformly mixed)；
Awning film outer layer matches：90% polyethylene raw material+10% stream drop masterbatch (pouring into batch mixer to be uniformly mixed).
The present embodiment is identical with the preparation method of embodiment 1.
Comparative example 4
Interior same ratio addition diffusing scattering masterbatch, the toatl proportion in film are 10% during the selection of the present embodiment formula is outer
Greenhouse film inner layer matches：+ 3.3% diffusing scattering masterbatch of 76.7% polyethylene raw material+10%EVA+10% longevities masterbatch
(pouring into batch mixer to be uniformly mixed)；
Awning film middle level matches：86.7% polyethylene raw material+10% heat preservation+3.3% diffusing scattering masterbatch of masterbatch (pours into batch mixing
Machine is uniformly mixed)；
Awning film outer layer matches：86.7% polyethylene raw material+10% stream drop+3.3% diffusing scattering masterbatch of masterbatch (pours into batch mixing
Machine is uniformly mixed).
The present embodiment is identical with the preparation method of embodiment 1.
Comparative example 5
Diffusing scattering masterbatch is not added in outside being chosen in formula
The present embodiment greenhouse film inner layer matches：80% polyethylene raw material+10%EVA+10% longevity masterbatch (pours into batch mixer
It is uniformly mixed)；
Awning film middle level matches：90% polyethylene raw material+10% heat preservation masterbatch (pouring into batch mixer to be uniformly mixed)；
Awning film outer layer matches：90% polyethylene raw material+10% stream drop masterbatch (pouring into batch mixer to be uniformly mixed)；
(prepared by long-lived masterbatch：+ 8% antioxidant of+8% light stabilizer of+4% drip agent of 80% polyethylene powder；
Masterbatch is kept the temperature to prepare：+ 5% heat preserving agent of+14% drip agent of 81% polyethylene powder
It is prepared by stream drop masterbatch：+ 1% antifogging agent of+16% drip agent of 83% polyethylene powder
It is prepared by diffusing scattering masterbatch：+ 10% nanometer of+1% coupling agent of 86% polyethylene powder+2% dispersant of+1% lubricant
Diffusing scattering auxiliary agent
Master batch is made according to proportioning in masterbatch, and every bag of 25kg is spare).
The present embodiment is identical with the preparation method of embodiment 1.
Its mechanical performance is tested according to agriculture greenhouse film national standard, product different parts mechanical performance and light transmittance haze value are surveyed
Test result is shown in Table 2.
(product standard and type is for 2 embodiment product different parts mechanical performance of table and light transmittance haze value test result
7000mm*0.08mm)
Test result sees that the properties of film are outstanding.
In order to test the performance of this patent diffusing scattering awning film, laboratory simulation contrast test is carried out：
Experimental condition：Continue water-bath (60 DEG C)；Continue xenon lamp irradiation；
Constant：Diffusing scattering masterbatch additive amount
Variable：Three layers of diffusing scattering masterbatch adding proportion in outer
Dispersion effect, effective substance situation such as the following table 3：
3 awning film diffusing scattering effect of table and nanometer diffusing scattering auxiliary agent content detection
Table 4 drips the testing result of fog dispersal bathtub test for stream.
The stream drop fog dispersal bathtub test of table 4
By a series of tests, in terms of effect and nano assistant content measuring, the improved proportioning of my patent has huge excellent
Gesture.The nanometer optimal light-dispersing effect of diffusing scattering auxiliary agent is realized in product longevity layer (internal layer), but outer layer and middle level are accordingly added
The attracting principle of the same sex of formation can so that nanometer diffusing scattering auxiliary agent plays the effect of sustained release, and in the long-lived masterbatch of internal layer and match somebody with somebody
EVA than in plays the effect of absorption nanometer diffusing scattering auxiliary agent, further enhances slow release effect.While internal layer adding proportion
Raising makes light-dispersing effect reach optimal, finds out that the diffusing scattering more than outer stratum proportion is better from 3 comparative example 2 of table and comparative example 5.
And from table 2,4 experimental test of table sees that my patent formulation can ensure the mechanical performance of agricultural film, ageing-resistant performance, drip performance, disappear
Mist performance is not added with the fair or even outstanding of diffusing scattering masterbatch with comparative example 5；Again from table 3, it was therefore concluded that I exists at patent formulation
It is more outstanding in terms of diffusing scattering persistence and effect.
Claims (10)
1. a kind of diffusing scattering polyethylene greenhouse film, which is characterized in that including outer layer, middle level and internal layer, outer layer is the stream of awning film
Layer is dripped, middle level is the insulating layer of awning film, and internal layer is the long-lived layer of awning film；Wherein, dispersing for 6-7wt% is added in outer layer
Masterbatch is penetrated, the diffusing scattering masterbatch of 2-3wt%, internal layer addition 1-2wt% diffusing scattering masterbatch are added in middle level.
2. diffusing scattering polyethylene greenhouse film according to claim 1, which is characterized in that stream drop layer, insulating layer, long-lived layer three
Layer raw materials for production are made of the raw material of following weight percent：
Greenhouse film inner layer：
3. diffusing scattering polyethylene greenhouse film according to claim 2, which is characterized in that the long-lived masterbatch is by as follows
The raw material of weight percent is made：
The heat preservation masterbatch is made of the raw material of following weight percent：
Polyethylene powder 81%-84%
Drip agent 12%-14%
Heat preserving agent 4%-5%.
4. diffusing scattering polyethylene greenhouse film according to claim 2, which is characterized in that described stream drop fog dispersal masterbatch be by
The raw material of following weight percent is made：
Polyethylene powder 83%-85%
Drip agent 14%-16%
Liquid antifogging agent 1%.
5. diffusing scattering polyethylene greenhouse film according to claim 1 or 2, which is characterized in that the diffusing scattering masterbatch by
The raw material of following weight percent is made：
6. diffusing scattering polyethylene greenhouse film according to claim 2, which is characterized in that the polyethylene raw material refer to by
The basic material that low density polyethylene (LDPE), linear low density polyethylene, metallocene PE form in proportion.
7. diffusing scattering polyethylene greenhouse film according to claim 3, which is characterized in that the polyethylene powder be without
Cross the polyethylene raw material of modification；The drip agent component for polyol esters of fatty acids, polyoxyethylene carboxylate or
Polyoxyethylene alkyl amine；The light stabilizer is 622 or 944；The antioxidant is 1010 or 168；The heat preserving agent
For kaolin, diatomite or talcum powder.
8. diffusing scattering polyethylene greenhouse film according to claim 4, which is characterized in that the liquid antifogging agent is fluorine table
Face activating agent.
9. diffusing scattering polyethylene greenhouse film according to claim 5, which is characterized in that the lubricant is zinc stearate
Series lubricant agent；The dispersant is aliphatic amide type dispersant；The coupling agent is titanate coupling agent；Described receives
Rice diffusing scattering auxiliary agent is NANO type scattering function auxiliary agents.
10. a kind of preparation method of diffusing scattering polyethylene greenhouse film described in claim 1, which is characterized in that step is as follows：
(1) preparation of long-lived masterbatch
After proportionally mixing polyethylene powder, drip agent, light stabilizer, antioxidant using high-speed mixer, mixing is added in
Machine is mediated, then feeds double screw extruder by feeder, and through water ring or underwater cutpellet, longevity masterbatch is made；
(2) preparation of masterbatch is kept the temperature
After proportionally being mixed polyethylene powder, drip agent, heat preserving agent using high-speed mixer, add in mixer and mediate, then
Double screw extruder is fed by feeder, through water ring or underwater cutpellet, heat preservation masterbatch is made；
(3) preparation of stream drop fog dispersal masterbatch
Mixer after polyethylene powder, drip agent, antifogging agent proportionally mixed at high speed, will be added in using high-speed mixer to pinch
It closes, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, stream drop masterbatch is made；
(4) preparation of diffusing scattering masterbatch
It is using high-speed mixer that polyethylene powder, lubricant, dispersant, coupling agent, nanometer diffusing scattering auxiliary agent is proportionally high
It after speed mixing, adds in mixer and mediates, then double screw extruder is fed by feeder, through water ring or underwater cutpellet, be made and disperse
Penetrate masterbatch；
Three layers of raw material are by three-layer co-extruded Blown-film line blow molding to get diffusing scattering polyethylene greenhouse film.
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| CN108925298A (en) * | 2018-08-03 | 2018-12-04 | 东莞市济丰农业生态园开发有限公司 | A kind of awning film and preparation method thereof that can shorten the crop growth period |
| CN109263216A (en) * | 2018-08-27 | 2019-01-25 | 上海骊塑商贸有限公司 | A kind of scattering energy saving film that self-adaptive temperature is adjusted |
| CN109287334A (en) * | 2018-10-26 | 2019-02-01 | 房乾 | Anti- diffusing scattering fruits and vegetables shed film special and preparation method thereof of burning |
| CN109532171A (en) * | 2018-11-16 | 2019-03-29 | 山东隆昌塑业有限公司 | A kind of light-diffusing film and preparation method thereof of multi-angle uniform irradiation |
| CN109588160A (en) * | 2018-12-19 | 2019-04-09 | 山东清田塑工有限公司 | It is high dust-proof long-acting to turn light five-layer co-squeezing awning film and preparation method |
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| CN114133648A (en) * | 2021-12-30 | 2022-03-04 | 山东东大塑业有限公司 | Reflection-type diffuse scattering greenhouse film and preparation method thereof |
| CN114763024A (en) * | 2021-05-26 | 2022-07-19 | 江苏智信塑胶科技有限公司 | Diffuse scattering film and preparation method thereof |
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| CN109263216A (en) * | 2018-08-27 | 2019-01-25 | 上海骊塑商贸有限公司 | A kind of scattering energy saving film that self-adaptive temperature is adjusted |
| CN109287334A (en) * | 2018-10-26 | 2019-02-01 | 房乾 | Anti- diffusing scattering fruits and vegetables shed film special and preparation method thereof of burning |
| CN109287334B (en) * | 2018-10-26 | 2021-07-20 | 房乾 | Special burn-proof diffuse scattering greenhouse film for fruits and vegetables and preparation method thereof |
| CN109532171A (en) * | 2018-11-16 | 2019-03-29 | 山东隆昌塑业有限公司 | A kind of light-diffusing film and preparation method thereof of multi-angle uniform irradiation |
| CN109588160A (en) * | 2018-12-19 | 2019-04-09 | 山东清田塑工有限公司 | It is high dust-proof long-acting to turn light five-layer co-squeezing awning film and preparation method |
| CN109673334A (en) * | 2019-02-22 | 2019-04-26 | 江苏智信塑胶科技有限公司 | It is a kind of to keep the temperature ageing-resistant fog dispersal agricultural canopy film and preparation method thereof |
| CN110978700A (en) * | 2019-11-21 | 2020-04-10 | 徐蕾 | Diffuse scattering film and preparation method thereof |
| CN114763024A (en) * | 2021-05-26 | 2022-07-19 | 江苏智信塑胶科技有限公司 | Diffuse scattering film and preparation method thereof |
| CN114133648A (en) * | 2021-12-30 | 2022-03-04 | 山东东大塑业有限公司 | Reflection-type diffuse scattering greenhouse film and preparation method thereof |
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