CN106240103A - One is dispersed and is applied drip defogging film and preparation method thereof outside emitting - Google Patents

One is dispersed and is applied drip defogging film and preparation method thereof outside emitting Download PDF

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Publication number
CN106240103A
CN106240103A CN201610620441.0A CN201610620441A CN106240103A CN 106240103 A CN106240103 A CN 106240103A CN 201610620441 A CN201610620441 A CN 201610620441A CN 106240103 A CN106240103 A CN 106240103A
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Prior art keywords
layer
film
thin film
light scattering
squeezing
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CN201610620441.0A
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CN106240103B (en
Inventor
程立春
张洪运
李长方
李海涛
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Shandong Dongda Plastic Co Ltd
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Shandong Dongda Plastic Co Ltd
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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
    • 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
    • A01G13/0206—Canopies, i.e. devices providing a roof above the plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • 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
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • 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
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04—Polymers of esters
    • B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2223/00—Use of polyalkenes or derivatives thereof as reinforcement
    • B29K2223/04—Polymers of ethylene
    • B29K2223/06—PE, i.e. polyethylene
    • B29K2223/0608—PE, i.e. polyethylene characterised by its density
    • B29K2223/0625—LLDPE, i.e. linear low density polyethylene
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • 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
    • B32B2410/00—Agriculture-related articles
    • C—CHEMISTRY; METALLURGY
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

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  • Chemical & Material Sciences (AREA)
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Abstract

The present invention relates to one and disperse coating drip defogging film and preparation method thereof outside emitting.This disperses coating drip defogging film outside emitting, by five-layer co-squeezing thin film and be located at the coat of five-layer co-squeezing thin film outer surface and form, described five-layer co-squeezing thin film is followed successively by dust layer, the first heat-insulation layer, the second heat-insulation layer, secondary internal layer, corona layer from outside to inside, and described coat is organosilicon coat.This disperses outside emitting coating drip defogging film, uses the organic light scattering agent of PMMA, prepares through five-layer co-squeezing and disperse emitting agricultural film, have excellence drip, disperse fog, be incubated, light transmission and mechanical property.Use the organic light scattering agent of PMMA type, compare the inorganic scattering diluents such as traditional Kaolin, brucite, silicon dioxide, can greatly strengthen light transmission rate and the compatibility, on the premise of high transmission, some light scattering is fallen, thus realize reducing direct projection at noon peak temperature, do not make blade face of burning, and scattered light can be irradiated to plant middle and lower part blade, strengthens the utilization rate to light.

Description

One is dispersed and is applied drip defogging film and preparation method thereof outside emitting
Technical field
The present invention relates to one and disperse coating drip defogging film and preparation method thereof outside emitting.
Background technology
Why the sky that we have seen that daytime is bright, is because sunlight during arriving ground by air There occurs atmospheric scattering when running into the particles such as air molecule, grit, water dust, atmospheric scattering is to all the winds launched sunlight, because of We see that skyward either direction all can have light to enter eyes for this.And there is no air on the moon, so in night sky except Outside the most luminous celestial body is bright, remaining is entirely black.It is photosynthetic heavy that solar energy is that crops are carried out Wanting one of factor, be the essential condition of crop growth, growth, result, wherein scattered light can make light be more evenly distributed, and shines It is mapped to more plant leaf blade, makes the crop number of sheets increase, improve the yield of crop, shorten the crop harvesting phase；And scattered light can To be irradiated to plant middle and lower part, strengthen the photosynthesis of middle and lower part blade, increase the utilization rate to light, promote the growth of plant. Additionally, on the premise of light transmittance is constant, if can be by increasing diffused light ratio, moreover it is possible to the peak value of the midday temperatures that disappears, take Generation tradition uses grass felt etc. to keep the sun off and avoids burning the mode on blade face.The quantity of the direct light and scattered light that arrive ground depends on In air, when cloud layer is more, only have diffused light, air drying, clear time then produce substantial amounts of direct light.Light scattering type agricultural film It is by adding filler in agricultural film, makes to occur through the light of agricultural film the agricultural film of scattering.At present, the preparation of light scattering type agricultural film It is to make agricultural film form the effect of clouded glass by the method adding inorganic nano-particle or micron ion, but so to agricultural film printing opacity The impact of rate is very big, and matte surface need to carry out bigger change to existing technique, is unsuitable for popularization and application.
Summary of the invention
The present invention is in order to make up the deficiencies in the prior art, it is provided that a kind of good, to light penetration shadow with resin compatible Sound is little, improve dispersing of light nephelometric turbidity unit applies drip defogging film and preparation method thereof outside emitting, solve in prior art and deposit Problem.
The present invention is achieved through the following technical solutions:
One disperses outside emitting coating drip defogging film, by five-layer co-squeezing thin film and be located at five-layer co-squeezing thin film outer surface Coat form, described five-layer co-squeezing thin film be followed successively by from outside to inside dust layer, the first heat-insulation layer, the second heat-insulation layer, secondary internal layer, Corona layer, described coat is organosilicon coat, described dust layer, the first heat-insulation layer, the second heat-insulation layer, secondary internal layer, corona The gross thickness of layer is 120 μm, and each layer thickness ratio is 1:1:1:1:1；
Described dust layer is made up of the raw material of following parts by weight: mLLDPE 20-25 part, light stabilizer 0.13-0.16 Part, antioxidant 0.04-0.06 part, UV absorbent 0.02-0.04 part, antistatic additive 0.3-0.4 part, slipping agent 0.08-0.1 Part, light scattering agent master batch 0.75-6 part；
Described first heat-insulation layer is made up of the raw material of following parts by weight: mLLDPE 15-18 part, high VA (vinyl acetate Ester) EVA (ethylene-vinyl acetate copolymer) 11-15 part of content, heat preserving agent 2-3.0 part, light stabilizer 0.13-0.16 part, anti- Oxygen agent 0.04-0.06 part, UV absorbent 0.02-0.04 part, light scattering agent master batch 0.75-5.6 part, described high VA content In EVA, VA content is 14%；
Described second heat-insulation layer is made up of the raw material of following parts by weight: EVA 14-15 part of low VA content, light stabilizer 0.13-0.16 part, antioxidant 0.05-0.06 part, UV absorbent 0.02-0.04 part, light scattering agent master batch 0.25-2.3 part, In the EVA of described low VA content, VA content is 9%；
Described time internal layer is made up of the raw material of following parts by weight: LDPE 8-10 part, light stabilizer 0.13-0.16 part, anti- Oxygen agent 0.05-0.06 part, UV absorbent 0.02-0.04 part, light scattering agent master batch 0.25-2.3 part；
Described corona layer is made up of the raw material of following parts by weight: LDPE 7.6-9.7 part, light stabilizer 0.13-0.16 Part, antioxidant 0.04-0.06 part, UV absorbent 0.02-0.04 part, light scattering agent master batch 0.25-2.0 part；
Described light scattering agent master batch is made up of PMMA (polymethyl methacrylate) and LLDPE, the weight of PMMA and LLDPE Ratio is 1:4-3:7.
Described antioxidant is Hinered phenols antioxidant.
Described light stabilizer is hindered amine light stabilizer.
Described antistatic additive is glyceryl monostearate.
Described slipping agent is oleamide.
Described heat preserving agent is 5000 mesh brucites.
The particle diameter of described PMMA is one or more in 1.5,2,3,5,7,10 μm.
Described UV absorbent is UV-531 (Octabenzone).
This disperses the preparation method applying drip defogging film outside emitting, employing following steps:
(1) organic silicon coating solution and the raw material of five-layer co-squeezing thin film every layer, wherein five-layer co-squeezing thin film are proportionally prepared In every layer, the preparation method of contained light scattering agent master batch is: use banbury at 130 DEG C of bars after being mixed homogeneously by PMMA with LLDPE Banburying 20-30min under part, makes PMMA emulsion dispersion use single screw pelletizer extrusion processing the most afterwards, obtains light scattering agent master batch, Single screw pelletizer extrusion processing uses level Four heating, the barrel zone temperature of four thermals treatment zone be set as successively 148 DEG C, 157 DEG C, 152℃、128℃；
(2) profit after every layer of raw material of five-layer co-squeezing thin film step (1) prepared utilizes mixing equipment mixture respectively uniformly Be blow molded into five-layer co-squeezing thin film with five-layer co-squeezing machine inflation film manufacturing machine, barrel zone temperature during each layer extrusion be respectively dust layer 210 DEG C, the One heat-insulation layer 185 DEG C, the second heat-insulation layer 185 DEG C, secondary internal layer 190 DEG C, 190 DEG C of corona layer；
(3) obtain coating liquid with deionized water after first organic silicon coating solution stock solution being mixed homogeneously with the weight ratio of 1:17 to hold In coating groove, then the surface of five-layer co-squeezing thin film is made to become through sided corona treatment the five-layer co-squeezing thin film that step (2) prepares Coarse and increase its wettability to polar solvent, then by the coating liquid dip-coating in coating groove, dip-coating complete use scraper will After unnecessary coating liquid shaves, at 60 DEG C, five-layer co-squeezing thin film is dried 30-40s, obtain described in disperse and outside emitting, apply stream Drip defogging film.
The invention has the beneficial effects as follows: this disperses coating drip defogging film outside emitting, uses the organic light scattering agent of PMMA, warp Five-layer co-squeezing, prepares and disperses emitting agricultural film, have excellence drip, disperse fog, be incubated, light transmission and mechanical property.Use The organic light scattering agent of PMMA type, compares the inorganic scattering diluents such as traditional Kaolin, brucite, silicon dioxide, can greatly strengthen light Transmitance and the compatibility, fall some light scattering on the premise of high transmission, thus realizes reducing direct projection at noon peak temperature, does not makes Burn blade face, and scattered light can be irradiated to plant middle and lower part blade, strengthens the utilization rate to light.Can make for difference during application The thing demand to light, develops the agricultural film of different astigmatism degree, such as 20% (micro-scattering), 35% (middle scattering), 65% (complete Scattering), middle scattering, entirely disperse emitting agricultural film and be applicable to south and the most regional and northern summer at High aititude sunshine, micro-unrestrained Scatter-type film can be suitable at northern area.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 be the present invention disperse outside emitting apply drip defogging film in canopy heating rate affect chart.
Detailed description of the invention
For the technical characterstic of this programme can be clearly described, below by detailed description of the invention, and combine its accompanying drawing, to this Bright it is described in detail.
Embodiment 1:
This disperses outside emitting coating drip defogging film, by five-layer co-squeezing thin film and the painting of being located at five-layer co-squeezing thin film outer surface Coating forms, and described five-layer co-squeezing thin film is followed successively by dust layer, the first heat-insulation layer, the second heat-insulation layer, secondary internal layer, electricity from outside to inside Dizzy layer, described coat is organosilicon coat, described dust layer, the first heat-insulation layer, the second heat-insulation layer, secondary internal layer, corona layer Gross thickness be 120 μm, each layer thickness ratio is 1:1:1:1:1；
In described light scattering agent master batch, the weight ratio of light scattering agent PMMA Yu LLDPE is 1:4；The particle diameter of described PMMA is 5, 7, the weight ratio of two kinds of particle diameters is 6:4.
The content (kilogram) of each component see table:
Wherein, light scattering agent PMMA content in film is 5 ‰, and in five layers, the ratio of PMMA content is 3:3:2:1:1, gained The scattering degree of coating drip defogging film outside emitting of dispersing is 20%, for micro-scattering film.
This disperses the preparation method applying drip defogging film outside emitting, employing following steps:
(1) organic silicon coating solution and the raw material of five-layer co-squeezing thin film every layer, wherein five-layer co-squeezing thin film are proportionally prepared In every layer, the preparation method of contained light scattering agent master batch is: use banbury at 130 DEG C of bars after being mixed homogeneously by PMMA with LLDPE Banburying 20-30min under part, makes PMMA emulsion dispersion use single screw pelletizer extrusion processing the most afterwards, obtains light scattering agent master batch, Single screw pelletizer extrusion processing uses level Four heating, the barrel zone temperature of four thermals treatment zone be set as successively 148 DEG C, 157 DEG C, 152℃、128℃；
(2) profit after every layer of raw material of five-layer co-squeezing thin film step (1) prepared utilizes mixing equipment mixture respectively uniformly Be blow molded into five-layer co-squeezing thin film with five-layer co-squeezing machine inflation film manufacturing machine, barrel zone temperature during each layer extrusion be respectively dust layer 210 DEG C, the One heat-insulation layer 185 DEG C, the second heat-insulation layer 185 DEG C, secondary internal layer 190 DEG C, 190 DEG C of corona layer；
(3) obtain coating liquid with deionized water after first organic silicon coating solution stock solution being mixed homogeneously with the weight ratio of 1:17 to hold In coating groove, then the surface of five-layer co-squeezing thin film is made to become through sided corona treatment the five-layer co-squeezing thin film that step (2) prepares Coarse and increase its wettability to polar solvent, then by the coating liquid dip-coating in coating groove, dip-coating complete use scraper will After unnecessary coating liquid shaves, at 60 DEG C, five-layer co-squeezing thin film is dried 30-40s, obtain described in disperse and outside emitting, apply stream Drip defogging film.
Embodiment 2:
In described light scattering agent master batch, the weight ratio of light scattering agent PMMA Yu LLDPE is 1:3；The particle diameter of described PMMA is 3, 5 μm, the weight ratio of two kinds of particle diameters is 7:3.
The content (kilogram) of each component see table:
Wherein, light scattering agent PMMA content in film is 1.9%, and in five layers, the ratio of PMMA content is 3:3:2:1:1, institute The scattering degree of coating drip defogging film outside emitting of must dispersing is 35%, for middle scattering film.
Embodiment 3:
In described light scattering agent master batch, the weight ratio of light scattering agent PMMA Yu LLDPE is 3:7；The particle diameter of described PMMA is 1.5,3 μm, the weight ratio of two kinds of particle diameters is 6:4.
The content (kilogram) of each component see table:
Wherein, light scattering agent PMMA content in film is 6%, and in five layers, the ratio of PMMA content is 3:3:2:1:1, gained The scattering degree of coating drip defogging film outside emitting of dispersing is 65%, for total scattering film.
As it is shown in figure 1, after testing, the present invention disperses coating drip defogging film outside emitting, the least on light penetration impact, Not affecting heating rate in canopy, in canopy, temperature relatively transparent film in peak is low 0.5-2 DEG C, on the premise of ensureing light penetration, and will Some light scatters, and makes light be uniformly distributed in canopy.
The performance of drip defogging film is applied outside emitting, the present inventor's performance to agricultural film in all its bearings in order to verify to disperse Being detected, result is as follows:
Table 1 present invention disperses the performance applying drip defogging film outside emitting
Project Thick deg micron Transmitance Mist degree % Hot strength MPa Transverse and longitudinal percentage elongation %
Hyaline membrane 100 91.2 12 35.3/33.7 920/700
Embodiment 1 100 90.3 20 34.5/34.2 900/680
Embodiment 2 100 89.3 35 35.2/33.2 930/720
Embodiment 3 100 88.4 65 33.3/34.9 920/690
Light penetration, it will be seen that the present invention disperses coating drip defogging film outside emitting, is not had by data from upper table 1 Too much influence, agricultural film mist degree reaches 65%, and light transmittance can reach more than 88%, compares U.S. Agriculture Solutions light-diffusing film (mist degree 60%, transmitance 83%), improves light transmittance greatly, and is not required to select special resin, Can be realized as under existing fabrication process condition.

Claims (9)

1. disperse outside emitting a coating drip defogging film, it is characterized in that: by five-layer co-squeezing thin film and be located at five-layer co-squeezing thin film The coat composition of outer surface, described five-layer co-squeezing thin film is followed successively by dust layer, the first heat-insulation layer, the second insulation from outside to inside Layer, secondary internal layer, corona layer, described coat is organosilicon coat, described dust layer, the first heat-insulation layer, the second heat-insulation layer, secondary Internal layer, the gross thickness of corona layer are 120 μm, and each layer thickness ratio is 1:1:1:1:1；
Described dust layer is made up of the raw material of following parts by weight: mLLDPE 20-25 part, light stabilizer 0.13-0.16 part, anti- Oxygen agent 0.04-0.06 part, UV absorbent 0.02-0.04 part, antistatic additive 0.3-0.4 part, slipping agent 0.08-0.1 part, light Scattering diluent master batch 0.75-6 part；
Described first heat-insulation layer is made up of the raw material of following parts by weight: mLLDPE 15-18 part, the EVA 11-15 of high VA content Part, heat preserving agent 2-3.0 part, light stabilizer 0.13-0.16 part, antioxidant 0.04-0.06 part, UV absorbent 0.02-0.04 Part, light scattering agent master batch 0.75-5.6 part, in the EVA of described high VA content, VA content is 14%；
Described second heat-insulation layer is made up of the raw material of following parts by weight: EVA 14-15 part of low VA content, light stabilizer 0.13-0.16 part, antioxidant 0.05-0.06 part, UV absorbent 0.02-0.04 part, light scattering agent master batch 0.25-2.3 part, In the EVA of described low VA content, VA content is 9%；
Described time internal layer is made up of the raw material of following parts by weight: LDPE 8-10 part, light stabilizer 0.13-0.16 part, antioxidant 0.05-0.06 part, UV absorbent 0.02-0.04 part, light scattering agent master batch 0.25-2.3 part；
Described corona layer is made up of the raw material of following parts by weight: LDPE 7.6-9.7 part, light stabilizer 0.13-0.16 part, anti- Oxygen agent 0.04-0.06 part, UV absorbent 0.02-0.04 part, light scattering agent master batch 0.25-2.0 part；
Described light scattering agent master batch is made up of PMMA and LLDPE, and the weight ratio of PMMA and LLDPE is 1:4-3:7.
The most according to claim 1 dispersing applies drip defogging film outside emitting, it is characterized in that: described antioxidant is hindered phenol Kind antioxidant.
The most according to claim 1 dispersing applies drip defogging film outside emitting, it is characterized in that: described light stabilizer is for being obstructed Amine light stabilizer.
The most according to claim 1 dispersing applies drip defogging film outside emitting, it is characterized in that: described antistatic additive is glycerol Single stearoyl ester.
The most according to claim 1 dispersing applies drip defogging film outside emitting, it is characterized in that: described slipping agent is oleic acid acyl Amine.
The most according to claim 1 dispersing applies drip defogging film outside emitting, it is characterized in that: described heat preserving agent is 5000 mesh Brucite.
The most according to claim 1 dispersing applies drip defogging film outside emitting, it is characterized in that: the particle diameter of described PMMA is 1.5, one or more in 2,3,5,7,10 μm.
The most according to claim 1 dispersing applies drip defogging film outside emitting, it is characterized in that: described UV absorbent is UV-531。
9. as described in claim 1-8 is arbitrary disperse outside emitting apply drip defogging film a preparation method, it is characterized in that: Comprise the steps:
(1) organic silicon coating solution and the raw material of five-layer co-squeezing thin film every layer, wherein five-layer co-squeezing thin film every layer are proportionally prepared Contained by, the preparation method of light scattering agent master batch is: use banbury after being mixed homogeneously by PMMA with LLDPE under the conditions of 130 DEG C Banburying 20-30min, makes PMMA emulsion dispersion use single screw pelletizer extrusion processing the most afterwards, obtains light scattering agent master batch, single spiral shell Bar comminutor extrusion processing use level Four heating, the barrel zone temperature of four thermals treatment zone be set as successively 148 DEG C, 157 DEG C, 152 DEG C, 128℃；
(2) every layer of raw material of five-layer co-squeezing thin film step (1) prepared utilizes five after utilizing mixing equipment mixture respectively uniformly Layer co-extrusion machine inflation film manufacturing machine is blow molded into five-layer co-squeezing thin film, and barrel zone temperature during each layer extrusion is respectively dust layer 210 DEG C, the first guarantor Temperature 185 DEG C of layer, the second heat-insulation layer 185 DEG C, secondary internal layer 190 DEG C, 190 DEG C of corona layer；
(3) obtain coating liquid after first organic silicon coating solution stock solution being mixed homogeneously with the weight ratio of 1:17 with deionized water and be contained in painting Cover in groove, then make the surface of five-layer co-squeezing thin film roughening through sided corona treatment the five-layer co-squeezing thin film that step (2) prepares And increase its wettability to polar solvent, then by the coating liquid dip-coating in coating groove, dip-coating complete use scraper is by unnecessary Coating liquid shave after, at 60 DEG C by five-layer co-squeezing thin film dry 30-40s, obtain described in disperse outside emitting apply drip disappear Mist film.
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CN114507373A (en) * 2022-03-03 2022-05-17 科伦塑业集团股份有限公司 Anti-ultraviolet and anti-dripping greenhouse film and preparation method thereof
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CN108081719A (en) * 2017-12-20 2018-05-29 山东清田塑工有限公司 Diffusing scattering polyethylene greenhouse film and preparation method
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
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
WO2020132923A1 (en) * 2018-12-26 2020-07-02 东莞正新包装制品有限公司 Pe mulch film
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CN109845540A (en) * 2019-02-22 2019-06-07 江苏智信塑胶科技有限公司 A kind of agricultural canopy film subtracting the ageing-resistant low temperature resistance of mist with long-acting anti-dropping
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CN112840915A (en) * 2021-02-19 2021-05-28 山东新天鹤塑胶有限公司 Coating type light-dimming dustproof high-heat-preservation long-acting dripping fog-dissipation greenhouse film and preparation method thereof
CN112840915B (en) * 2021-02-19 2022-04-15 山东新天鹤塑胶有限公司 Coating type light-dimming dustproof high-heat-preservation long-acting dripping fog-dissipation 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
CN114507373A (en) * 2022-03-03 2022-05-17 科伦塑业集团股份有限公司 Anti-ultraviolet and anti-dripping greenhouse film and preparation method thereof

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