CN108892848A - Agricultural curtain coating polyethylene film of one kind and the preparation method and application thereof - Google Patents
Agricultural curtain coating polyethylene film of one kind and the preparation method and application thereof Download PDFInfo
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- 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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- 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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- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
- A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
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- 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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- 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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- 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
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
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- C08J2461/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2461/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2461/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
- C08J2491/06—Waxes
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
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- C08K5/37—Thiols
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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Abstract
The invention discloses a kind of agricultural curtain coating polyethylene films, it is related to a kind of film, aim to solve the problem that the problem of agricultural plastic film light resistance in the prior art and useful life longevity difference, its key points of the technical solution are that, including following component by weight, 100-120 parts of polyethylene, 20-30 parts of fluorine richness polypropylene, 10-15 parts of toughening element, 5-8 parts of lubricant, 0.5-1.0 parts of antioxidant, 1-3 parts of dispersing agent.Using polyethylene, fluorine richness polypropylene and toughening element as main material, not only processability is good and film strength obtained is high, good toughness, the incorporation of antioxidant, dispersing agent and lubricant improves anti-aging property, the processing performance of film, so that the advantage that agricultural curtain coating polyethylene film of the invention is easy to process and good with useful life longevity.It is a further object of the present invention to provide the preparation methods and application method of a kind of above-mentioned film.
Description
Technical field
The present invention relates to cast film technical field, more specifically, it relates to a kind of agricultural curtain coating polyethylene film and
Preparation method and application.
Background technique
Cast polypropylene film, i.e. CPP are a kind of using very extensive heat-sealable material, are cast quenching production by melt
A kind of tensionless winkler foundation, unoriented cast film, compared with blown film, its main feature is that speed of production is fast, yield is high, thin-film transparent,
Glossiness, the thickness uniformity are good, respectively excellent to performance balance, are widely used in the fields such as light industry, daily, agriculture.
Existing application publication number is that the Chinese patent of CN107573589A discloses a kind of tear-proof antibacterial agricultural mulching,
It include bacteria cellulose 10-20 parts in raw material composition, the substances such as 8-15 parts of collagenous fibres and 1-3 parts of lignocellulosic.And it is agricultural
Mulch use environment is special, and mulch needs to be resistant to solar radiation, rainwater dipping and temperature change etc., and above-mentioned three kinds of substances are
Cellulose substances, sun-proof weather resistance is poor, so that mulch is under permanent solar radiation, rainwater dipping and temperature change
The aging for being easy to appear mulch is even damaged, and useful life longevity is bad, is further improved.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of agricultural curtain coating polyethylene film,
The advantage good with sun-proof performance, useful life longevity is good.
To achieve the above object, the present invention provides following technical solutions:
A kind of agricultural curtain coating polyethylene film, it is characterised in that:Including following component by weight,
100-120 parts of polyethylene
20-30 parts of fluorine richness polypropylene
10-15 parts of toughening element
5-8 parts of lubricant
0.5-1.0 parts of antioxidant
1-3 parts of dispersing agent.
By using above-mentioned technical proposal, at least have the following advantages that:1, with polyethylene, fluorine richness polypropylene and toughening group
Divide the main material being blended as film, melting when ensure that polyethylene film has enough intensity and toughness, and to process
More preferably, be conducive to extend is in film to the more single molten polyethylene of the mobility of resin;2, contain fluorine in the polyacrylic molecule of fluorine richness
Atom increases the sun-resistant performance of film;3, the admixture of toughening element can improve the toughness of film, and being conducive to extend is in film;4, on
The antioxidant for stating volume increases the high temperature resistance of resin, reduces resin deterioration by oxidation during preparing film;5,
Dispersing agent and lubricant have synergistic effect, improve the mobility of molten resin, improve resin compound mobility and
Ductility;6, the polyethylene film processability of above-mentioned specific substance proportion is good, and film strength high tenacity obtained is good, sun-proof gasproof
Function admirable is waited, useful life longevity is splendid.
It further, further include 4-6 parts of antifoggant.
By using above-mentioned technical proposal, the anti-fog performance of film is further increased.
Further, the antifoggant is Span-20 or glyceryl monolaurate.
By using above-mentioned technical proposal, Span-20 or glyceryl monolaurate and resin matrix
There is preferable compatibility, it is appropriate to add the surface tension that significantly increase film surface, so that the steam in air is not easy
Film surface aggregation is in drop, improves the anti-fog performance of film.
Further, the lubricant is glycerin monostearate.
By using above-mentioned technical proposal, glycerin monostearate relative low price, lubricant effect is good, and with other objects
Matter has preferable compatibility.
Further, the antioxidant be four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and
The mixture of two octadecyl ester of thio-2 acid.
By using above-mentioned technical proposal, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and
Two octadecyl ester of thio-2 acid has synergistic effect, the resistance to oxidation ageing properties of resin matrix can be significantly improved, so that preparing thin
Resin matrix is not easy deterioration by oxidation due to heating in membrane process, improves the intensity, toughness and useful life longevity of film.
Further, four in the antioxidant [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and
The mass ratio of two octadecyl ester of thio-2 acid is 1:1.5.
By using above-mentioned technical proposal, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and
The collaboration antioxidation of two octadecyl ester of thio-2 acid is splendid, can give full play to the anti-oxidant aging performance of antioxidant.
Further, the dispersing agent is montanin wax or maleic anhydride grafted PP.
By using above-mentioned technical proposal, montanin wax or maleic anhydride grafted PP and other raw materials have well
Compatibility, dispersion, lubricant effect it is significant.
Further, the toughening element is ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer or ethylene-
Methyl acrylate copolymer.
By using above-mentioned technical proposal, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer and ethylene-propylene
Sour methyl terpolymer has good compatibility with matrix resin, appropriate to add the flexibility and impact resistance that significantly improve film
Intensity.
It is a further object of the present invention to provide a kind of preparation methods of agricultural curtain coating polyethylene film.
A kind of preparation method of agricultural curtain coating polyethylene film, includes the following steps:
Step 1: weighing polyethylene, fluorine richness polypropylene, toughening element, lubricant, antioxidant, dispersing agent by weight, mix
Uniformly obtain mixed material;
Step 2: being plasticized and squeezing out by the mixed material in step 1 by extruder under the conditions of 230 DEG C, then pass through 220 DEG C
T-die curtain coating, by 30 DEG C casting rollers be quenched film forming;
Step 3: winding.
It is a further object of the present invention to provide a kind of application methods of agricultural curtain coating polyethylene film.
A kind of application of agricultural curtain coating polyethylene film, the agricultural curtain coating polyethylene film of any of the above-described is used as agricultural
Mulch or Greenhouse.
In conclusion the invention has the advantages that:
1, the main material as film is blended using polyethylene, fluorine richness polypropylene and toughening element, ensure that polyethylene film has
When having enough intensity and toughness, and making processing the more single molten polyethylene of mobility of molten resin more preferably, conducive to prolonging
Exhibition is in film;
2, contain fluorine atom in the polyacrylic molecule of fluorine richness, increase the sun-resistant performance of film;
3, the admixture of toughening element can improve the toughness of film, and being conducive to extend is in film;
4, the antioxidant of above-mentioned volume increases the high temperature resistance of resin, reduces resin and aoxidizes during preparing film
Aging;
5, dispersing agent and lubricant have synergistic effect, improve the mobility of molten resin, improve the stream of resin compound
Dynamic property and ductility;
6, the polyethylene film processability of the specific substance proportion of the present invention is good, and film strength high tenacity obtained is good, sun-proof gasproof
Function admirable is waited, useful life longevity is splendid.
Specific embodiment
Below in conjunction with specific embodiment, invention is further described in detail.
Embodiment 1-5
A kind of agricultural curtain coating polyethylene film, by weight, raw material composition are as shown in the table:
1. embodiment 1-5 raw material of table forms table
Antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and thio-2 acid in upper table
The mixture of two octadecyl esters, and the mass ratio of the two is 1:1.5.
In embodiment as the ethylene-vinyl acetate copolymer of toughening element can also with ethylene-acrylic acid copolymer or
Ethylene-methyl acrylate copolymer substitution.
Embodiment 6
A kind of preparation method of agricultural curtain coating polyethylene film:
100 parts of polyethylene, 20 parts of fluorine richness polypropylene, 10 parts of ethylene-vinyl acetate copolymer, single tristearin are weighed according to parts by weight
5 parts of acid glyceride, 0.5 part of antioxidant, 1 part of montanin wax and 4 parts of glyceryl monolaurate ester, after mixing mixed material.?
Under the conditions of 230 DEG C, mixed material is plasticized by extruder and is squeezed out, is then cast by 220 DEG C of T-die, by 30 DEG C
Casting roller quenching film forming.It is wound again with the speed of 60m/min, obtains agricultural polypropylene film.Antioxidant used is four [β-
(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester and thio-2 acid two octadecyl ester mixture, and the two
Mass ratio is 1:1.5.
Embodiment 7
A kind of preparation method of agricultural curtain coating polyethylene film:
105 parts of polyethylene, 22 parts of fluorine richness polypropylene, 12 parts of ethylene-vinyl acetate copolymer, single tristearin are weighed according to parts by weight
5 parts of acid glyceride, 0.6 part of antioxidant, 1.5 parts of montanin wax and 4.5 parts of Span-20, mix after mixing
Material.Under the conditions of 230 DEG C, mixed material is plasticized by extruder and is squeezed out, is then cast by 220 DEG C of T-die, by
30 DEG C of casting roller is quenched film forming.It is wound again with the speed of 60m/min, obtains agricultural polypropylene film.Antioxidant used is
The mixture of four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] two octadecyl esters of pentaerythritol ester and thio-2 acid, and
The mass ratio of the two is 1:1.5.
Embodiment 8
A kind of preparation method of agricultural curtain coating polyethylene film:
110 parts of polyethylene, fluorine richness polipropene 25 part, 13 parts of ethylene-vinyl acetate copolymer, single tristearin are weighed according to parts by weight
6 parts of acid glyceride, 0.8 part of antioxidant, 2 parts of maleic anhydride grafted PP and 5 parts of glyceryl monolaurate are uniformly mixed
Mixed material afterwards.Under the conditions of 230 DEG C, mixed material is plasticized by extruder and is squeezed out, then passes through 220 DEG C of T-die
Curtain coating is quenched film forming by 30 DEG C of casting rollers.It is wound again with the speed of 60m/min, obtains agricultural polypropylene film.Antioxygen used
Agent is the mixing of four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] two octadecyl esters of pentaerythritol ester and thio-2 acid
Object, and the mass ratio of the two is 1:1.5.
Embodiment 9
A kind of preparation method of agricultural curtain coating polyethylene film:
115 parts of polyethylene, 28 parts of fluorine richness polypropylene, 14 parts of ethylene-vinyl acetate copolymer, single tristearin are weighed according to parts by weight
7 parts of acid glyceride, 0.8 part of antioxidant, 2.5 parts of maleic anhydride grafted PP and Span-20 5.5
Part, mixed material after mixing.Under the conditions of 230 DEG C, mixed material is plasticized by extruder and is squeezed out, then passes through 220
DEG C T-die curtain coating, by 30 DEG C casting rollers be quenched film forming.It is wound again with the speed of 60m/min, it is thin to obtain agricultural polypropylene
Film.Antioxidant used is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and thio-2 acid two
The mixture of octadecyl ester, and the mass ratio of the two is 1:1.5.
Embodiment 10
A kind of preparation method of agricultural curtain coating polyethylene film:
120 parts of polyethylene, 30 parts of fluorine richness polypropylene, 15 parts of ethylene-vinyl acetate copolymer, single tristearin are weighed according to parts by weight
8 parts of acid glyceride, 1 part of antioxidant, 3 parts of maleic anhydride grafted PP and 6 parts of glyceryl monolaurate, after mixing
Mixed material.Under the conditions of 230 DEG C, mixed material is plasticized by extruder and is squeezed out, then passes through 220 DEG C of T-die stream
Prolong, is quenched film forming by 30 DEG C of casting rollers.It is wound again with the speed of 60m/min, obtains agricultural polypropylene film.Antioxidant used
It is the mixing of four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] two octadecyl esters of pentaerythritol ester and thio-2 acid
Object, and the mass ratio of the two is 1:1.5.
Embodiment 11
A kind of application of agricultural curtain coating polyethylene film, by embodiment 1-5 or as made from the preparation method of embodiment 6-10
Agricultural curtain coating polyethylene film is used as agricultural mulching or Greenhouse.
Performance detection
Select commercially available conventional curtain coating polyethylene film as control sample, using film made from embodiment 1-5 as test sample.
According under above-mentioned each test sample product under GB9639.1-2008 23 DEG C of environment of measurement and 10 DEG C of environment and control sample
Dart impact strength;It is detected according to the tensile property to the above-mentioned each test sample product of GB/T13022-1991 and control sample.
Test result is as shown in the table:
Dart impact strength and tensile strength test result table under each test sample of table 2. and control sample
Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Control sample | |
Dart impact strength/g under 23 DEG C of environment | 675 | 695 | 675 | 685 | 670 | 350 |
Dart impact strength/g under 10 DEG C of environment | 420 | 440 | 433 | 435 | 410 | 80 |
Tensile strength/MPa | 21.5 | 23.0 | 22.0 | 22.5 | 21.5 | 15.0 |
By upper table data it is found that lower dart impact strength of each sample under 23 DEG C of environment and 10 DEG C of environment is superior to control sample,
And it is significantly improved compared with comparative sample;The tensile strength of each test sample is superior to control sample, and the tensile strength of each test sample relatively compares
Sample improves 40% or more.
Referring to GB/T16422.2-2014《Plastics testing room light source exposure test method part 2:Xenon arc lamp》With
ISO4892-2 2006《Plastics-Methods of exposure to laboratory light sources -
part2:Xenon-arc source》Test method each sample and control sample are tested, to determine each sample and control
The anti-aging property of sample.Test result is as shown in the table:
The anti-aging property test result table of each test sample of table 3. and control sample
Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Control sample | |
Tensile strength rate of descent/% | 0.8 | 0.7 | 0.9 | 0.6 | 0.8 | 1.6 |
Cosmetic variation | Without obvious visual cosmetic variation | Without obvious visual cosmetic variation | Without obvious visual cosmetic variation | Without obvious visual cosmetic variation | Without obvious visual cosmetic variation | Slight yellowing |
By upper table data it is found that the tensile strength for the film being exposed to the sun by ultraviolet lamp is declined, each test sample of the present invention
The tensile strength decline of film is significantly lower than control sample, and each sample is without obvious visual outer tube variation in test, and compares
There is slight yellowing in sample.Agricultural curtain coating polyethylene film i.e. of the invention has better anti-aging property, useful life longevity phase
It should more preferably.
Above-mentioned specific embodiment is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in scope of the presently claimed invention.
Claims (10)
1. a kind of agricultural curtain coating polyethylene film, it is characterised in that:Including following component by weight,
100-120 parts of polyethylene
20-30 parts of fluorine richness polypropylene
10-15 parts of toughening element
5-8 parts of lubricant
0.5-1.0 parts of antioxidant
1-3 parts of dispersing agent.
2. a kind of agricultural curtain coating polyethylene film according to claim 1, it is characterised in that:It further include 4-6 parts of antifoggant.
3. a kind of agricultural curtain coating polyethylene film according to claim 2, it is characterised in that:The antifoggant is sorbose
Alcohol acid anhydride monolaurate or glyceryl monolaurate.
4. a kind of agricultural curtain coating polyethylene film according to claim 1, it is characterised in that:The lubricant is single stearic
Acid glyceride.
5. a kind of agricultural curtain coating polyethylene film according to claim 1, it is characterised in that:The antioxidant is four [β-
(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] two octadecyl ester of pentaerythritol ester and thio-2 acid mixture.
6. a kind of agricultural curtain coating polyethylene film according to claim 5, it is characterised in that:Four [β-in the antioxidant
(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] two octadecyl ester of pentaerythritol ester and thio-2 acid mass ratio be 1:1.5.
7. a kind of agricultural curtain coating polyethylene film according to claim 1, it is characterised in that:The dispersing agent is montanin wax
Or maleic anhydride grafted PP.
8. a kind of agricultural curtain coating polyethylene film according to claim 1, it is characterised in that:The toughening element is second
Alkene-acetate ethylene copolymer, ethylene-acrylic acid copolymer or ethylene-methyl acrylate copolymer.
9. a kind of preparation method of agricultural curtain coating polyethylene film, it is characterised in that:Include the following steps,
Step 1: weighing polyethylene, fluorine richness polypropylene, toughening element, lubricant, antioxidant, dispersing agent by weight, mix
Uniformly obtain mixed material;
Step 2: being plasticized and squeezing out by the mixed material in step 1 by extruder under the conditions of 230 DEG C, then pass through 220 DEG C
T-die curtain coating, by 30 DEG C casting rollers be quenched film forming;
Step 3: winding.
10. a kind of application of agricultural curtain coating polyethylene film, it is characterised in that:Claim 1-7 is described in any item agricultural
It is cast polyethylene film and is used as agricultural mulching or Greenhouse.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110256751A (en) * | 2019-06-22 | 2019-09-20 | 天津登峰卫生用品材料有限公司 | A kind of high resiliency casting films and its preparation and application |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101007302A (en) * | 2006-01-25 | 2007-08-01 | Jts株式会社 | Light-scattering composite agricultural film |
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CN107501683A (en) * | 2017-09-05 | 2017-12-22 | 浙江山联新材料科技有限公司 | A kind of manufacture method of the film manufactured by inorganic mineral powder with the tape casting |
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2018
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CN101007302A (en) * | 2006-01-25 | 2007-08-01 | Jts株式会社 | Light-scattering composite agricultural film |
CN103788452A (en) * | 2014-01-14 | 2014-05-14 | 深圳市奥晶科技有限公司 | Long-acting deoxidization antibacterial polyolefin plastic |
CN107501683A (en) * | 2017-09-05 | 2017-12-22 | 浙江山联新材料科技有限公司 | A kind of manufacture method of the film manufactured by inorganic mineral powder with the tape casting |
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CN110256751A (en) * | 2019-06-22 | 2019-09-20 | 天津登峰卫生用品材料有限公司 | A kind of high resiliency casting films and its preparation and application |
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