CN108314818A - A kind of delustring curtain coating PE films and preparation method thereof - Google Patents
A kind of delustring curtain coating PE films and preparation method thereof Download PDFInfo
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- CN108314818A CN108314818A CN201810054839.1A CN201810054839A CN108314818A CN 108314818 A CN108314818 A CN 108314818A CN 201810054839 A CN201810054839 A CN 201810054839A CN 108314818 A CN108314818 A CN 108314818A
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- 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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- 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
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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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- 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
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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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
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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
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
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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
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- C—CHEMISTRY; METALLURGY
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2289—Oxides; Hydroxides of metals of cobalt
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K2201/011—Nanostructured additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses a kind of delustrings to be cast PE films and preparation method thereof, and the raw material for preparing of the three-decker with internal layer, middle level and outer layer, PE films includes：Nano silicon dioxide, nano-calcium carbonate, antioxidant, light stabilizer, dispersant, lubricant, tackifier, slipping agent, coupling agent, LLDPE, Si-Al molecular sieve, aluminum phosphate, PA, cobalt sesquioxide, scandium oxide, zirconium dioxide and HDPE, internal layer film forming material, middle level film forming material, outer layer film forming material are prepared by choosing different raw material, then will prepare the PE films in three-layer co-extruded casting and stretching machine that above-mentioned film forming material is added.With good tensile strength, punctured resistance and flame retardant property while curtain coating PE films prepared by the present invention are with extinction.
Description
Technical field
The invention belongs to chemical fields, more particularly to a kind of polyethylene film and preparation method thereof, more specifically
It is related to a kind of delustring curtain coating PE films and preparation method thereof.
Background technology
Polyethylene (PE) is a kind of aggregated thermoplastic resin obtained of ethylene, industrially, also including ethylene and on a small quantity
The copolymer of ɑ-alkene.Polyethylene is odorless nontoxic, has excellent resistance to low temperature, chemical stability is good, is not dissolved under room temperature
Common solvent, good water absorption, electrical insulating property is excellent, therefore is widely used in every profession and trade.Polyethylene according to density not
With high density polyethylene (HDPE), medium density polyethylene and low density polyethylene (LDPE) is divided into, the PE films for being resistant to the erosion of most of soda acids have
The advantages that light, nontoxic, moisture-proof, heat sealability is superior, is widely used in the packaging of the products such as food, medicine, amenities.It blows
Modeling method and the tape casting are two kinds of main working systems of polyolefin film production and processing, and the production that blow moulding is more early applied to film adds
Work, it is the 1980s, a kind of more advanced to adopt because of the defect that the limitation and product of its production technology can not overcome
The processing technology that film is produced with the tape casting is able to large-scale promotion and application, and is gradually answered with the products characteristics of its high-quality
For in the high-grade packaging of various articles.The tape casting is more applicable for multi-layer co-extruded film production processing than blow moulding, especially
When carrying out co-extrusion using the material of a variety of unlike materials, the processing parameter of the tape casting is more easily controlled, the design of die head
The uniformity that a variety of materials are distributed in product, the film article surface gloss that this method is produced can more be effectively ensured
Good, flatness is high, mechanics good-extensibility, and transparency is higher than blow moulding.
With the variation of people's aesthetic standards, the requirement to package packing supplies is constantly updated, and is in package material surface feature
Existing diversity requirements, to be stimulated from many-sided reflection packing article such as aesthetics, restocking effect, advertising and performance manufacturer
The special-effect of consumer's sense organ vision needs to produce the film with extinction effect.Matt film is that a kind of low-luster is in
The film for packaging of diffusing reflection extinction effect, film surface similar to paper have low-down glossiness, surface reflection it is weak and
Soft, surface gloss is less than 15%, and mist degree is generally 70% or more, color when having the quiet elegant, printing of comfortable feel, appearance
Coloured silk can reproduction true to nature many advantages, such as, have the title of class paper wrapper film or natural light glossy film.Matt film makes surface color and polish
Subtract dark, it appears that it is softer, it is mainly used for the packaging of high-grade based food, gift, candy etc. and the printing of large-scale outdoor advertising
The cover of paper and bound book.The production of matt film starts from foreign countries, has Patent Publication in the sixties in last century, machine may be used
The methods of tool annular knurl, solvent etched carry out secondary operation to film and obtain extinction effect.Photoextinction is typically to be carried out to light
It absorbs and scatters to realize.Because plastic products are generally less to light absorption, film article is even more that can neglect to light absorption
Slightly, therefore scattering method is mostly used in actual production.Realize scattering delustring usually by two approach：First, increasing product surface
Scattering and delustring, second is that this volume scattering of enhanced article and delustring.Surface scattering is to improve the roughness of product surface to realize,
When incident light directive rough surface, mirror-reflection is diffusely reflected agency, and diffusing reflection can interfere with each other and scattered field light intensity is made to increase
Greatly, thus mirror-reflection intensity greatly weakens, and reaching delustring purpose, machine-shaping conditions and material character influences surface scattering
It is very big.Ontology delustring be derived from ontology optical heterogeneity, optical heterogeneity be due to substance inside particle or molecule, original
Caused by son, with material property by substantial connection.The factor of wherein most critical is refractive index difference between the microcell of product inside.
The preparation for disclosing a kind of antifog matt film application No. is 201710387287.1 and its method.Two-way drawing obtained
The antifog matt film good water permeability of polypropylene stretched film (BOPP), waterproof, waterproof and film surface drop can not be formed, and high-end packet is can be used as
Dress.Application No. is 201410428226.1 to disclose a kind of compound matt film, which uses polyethylene two
The mode that the materials such as alcohol, acrylic resin, delustring masterbatch are combined manufactures, and improves the whole mechanical property of compound matt film
Energy.Although disclosing the preparation method of some matt films in the prior art, the matt film prepared is mostly that polypropylene delustring is thin
Film, the report of polyethylene matt film is less at present, and Chinese patent 201110352249.5 discloses a kind of polyethylene film and its system
The polyethylene film pliability of Preparation Method, preparation is good, disclosure satisfy that the requirement of home textile, but and does not have extinction effect.In
State's patent 201510369271.9 discloses a kind of plastic film with extinction effect, has the function of weakening reflection light.
However, that there are intensity is low due to polyethylene, the shortcomings of being easily deformed, is inflammable, the application range of polyethylene is greatly limited.Cause
This, needs to design that a kind of extinction is good, intensity is big and polyethylene film with flame retardant property.
Invention content
A kind of preparation of delustring curtain coating PE films is provided it is an object of the invention to solve the above the deficiencies in the prior art
Method not only has good extinction using PE films prepared by this method, and intensity is big, nonflammable, can be used as high-end
Packaging applies scape with wide.
It illustrates：
In the present invention, PE is the abbreviation of polyethylene.
In the present invention, LLDPE is the abbreviation of linear low density polyethylene.
In the present invention, HDPE is the abbreviation of high density polyethylene (HDPE).
In the present invention, PA is the abbreviation of polyamide.
On the one hand, the present invention provides a kind of delustrings to be cast PE films, and the PE films have the three of internal layer, middle level and outer layer
Layer structure；
Wherein, the raw material for preparing of the internal layer of delustring curtain coating PE films includes by weight：Nano silicon dioxide
2-8 parts, 10-20 parts of nano-calcium carbonate, 0.5-2 parts of antioxidant, 0.5-2 parts of light stabilizer, 5-12 parts of dispersant, lubricant 3-8
Part, 0.5-2 parts of tackifier, 0.5-2 parts of slipping agent, 1-2.5 parts of coupling agent, 10-20 parts of LLDPE, 1-5 parts of Si-Al molecular sieve, phosphorus
Sour aluminium 2-8 parts and 40-60 parts of HDPE.
The raw material for preparing in the middle level of the delustring curtain coating PE films includes by weight：2-8 parts of nano silicon dioxide,
10-20 parts of nano-calcium carbonate, 0.5-2 parts of antioxidant, 0.5-2 parts of light stabilizer, 5-12 parts of dispersant, 3-8 parts of lubricant, thickening
40-60 parts of 0.5-2 parts of agent, 0.5-2 parts of slipping agent, 1-2.5 parts of coupling agent, 10-20 parts of LLDPE, 2-9 parts of PA and HDPE.
The raw material for preparing of the outer layer of the delustring curtain coating PE films includes by weight：2-8 parts of nano silicon dioxide,
10-20 parts of nano-calcium carbonate, 0.5-2 parts of antioxidant, 0.5-2 parts of light stabilizer, 5-12 parts of dispersant, 3-8 parts of lubricant, thickening
0.5-2 parts of agent, 0.5-2 parts of slipping agent, 1-2.5 parts of coupling agent, 10-20 parts of LLDPE, 0.2-1 parts of cobalt sesquioxide, three oxidations
40-60 parts of two scandium 0.5-1.5,1-2 parts of zirconium dioxide and HDPE.
Preferably, the raw material for preparing of the internal layer of delustring curtain coating PE films includes by weight：Nanometer titanium dioxide
3-7 parts of silicon, 14-17 parts of nano-calcium carbonate, 1-1.5 parts of antioxidant, 1-1.5 parts of light stabilizer, 7-10 parts of dispersant, lubricant 4-
7 parts, 1-1.5 parts of tackifier, 1-1.5 parts of slipping agent, 1.5-2 parts of coupling agent, 15-19 parts of LLDPE, 2-4 parts of Si-Al molecular sieve,
50-55 parts of 4-6 parts of aluminum phosphate and HDPE.
Preferably, the raw material for preparing in the middle level of delustring curtain coating PE films includes by weight：Nanometer titanium dioxide
3-7 parts of silicon, 14-17 parts of nano-calcium carbonate, 1-1.5 parts of antioxidant, 1-1.5 parts of light stabilizer, 7-10 parts of dispersant, lubricant 4-
7 parts, 1-1.5 parts of tackifier, 1-1.5 parts of slipping agent, 1.5-2 parts of coupling agent, 15-19 parts, PA4-6 parts of LLDPE and HDPE 50-
55 parts.
Preferably, the raw material for preparing of the outer layer of delustring curtain coating PE films includes by weight：Nanometer titanium dioxide
3-7 parts of silicon, 14-17 parts of nano-calcium carbonate, 1-1.5 parts of antioxidant, 1-1.5 parts of light stabilizer, 7-10 parts of dispersant, lubricant 4-
7 parts, 1-1.5 parts of tackifier, 1-1.5 parts of slipping agent, 1.5-2 parts of coupling agent, 15-19 parts of LLDPE, cobalt sesquioxide 0.4-0.6
Part, 0.8-1.2 parts of scandium oxide, 1.3-1.7 parts of zirconium dioxide and 50-55 parts of HDPE.
Preferably, the antioxidant is antioxidant 1098 and/or antioxidant 1010.
Preferably, the light stabilizer is light stabilizer UV-419 and/or light stabilizer GW-4611.
Preferably, the dispersant is polyvinylpyrrolidone (PVP) and/or polyvinyl alcohol.
Preferably, the lubricant is glycerin monostearate and/or stearic acid.
Preferably, the tackifier are sodium carboxymethylcellulose.
Preferably, the slipping agent is oleamide and/or erucyl amide.
Preferably, the coupling agent is the blend of titanate coupling agent and silicic acid coupling agent；
It is highly preferred that the weight part ratio of titanate coupling agent and silicic acid coupling agent is in the blend of the coupling agent
2:1。
Preferably, the average grain diameter of the nano silicon dioxide is 100-400nm.
Preferably, the average grain diameter of the nano-calcium carbonate is 100-400nm.
Preferably, it is Y type molecular sieve that the internal layer of delustring curtain coating PE films, which prepares the Si-Al molecular sieve in raw material, and silicon is former
Son and the molfraction ratio of aluminium atom are 1.5-3：1.
Preferably, the density that internal layer, middle level, the outer layer of the described delustring curtain coating PE films prepare the LLDPE in raw material is
0.918g/cm3, melt turnover rate is 2g/10min (190 DEG C, 2.16kg is measured according to ASTM D-1238).
Preferably, the density that internal layer, middle level, the outer layer of the described delustring curtain coating PE films prepare the HDPE in raw material is
0.961g/cm3, melt turnover rate is 46g/10min (190 DEG C, 21.6kg is measured according to ASTM D-1238).
On the other hand, the present invention provides above-mentioned delustring be cast PE films preparation method, the preparation method include with
Lower step：
(1) will be formulated the nano silicon dioxide of dosage, nano-calcium carbonate, antioxidant, light stabilizer, dispersant, lubricant,
Tackifier, slipping agent, coupling agent, LLDPE, Si-Al molecular sieve, aluminum phosphate are added in mixing machine and mix, and obtain mixture a, will
It is placed in double screw extruder to mixture a and squeezes out obtained masterbatch A, obtained masterbatch A and HDPE is mediated in kneader laggard
Enter mixing in pressurization internal mixer and obtains internal layer film forming material；
(2) will be formulated the nano silicon dioxide of dosage, nano-calcium carbonate, antioxidant, light stabilizer, dispersant, lubricant,
Tackifier, slipping agent, coupling agent, LLDPE and PA are added in mixing machine and mix, and obtain mixture b, will obtain mixture b and be placed in
Double screw extruder, which squeezes out, is made masterbatch B, enters in pressurization internal mixer after obtained masterbatch B and HDPE are mediated in kneader
Mixing obtains middle level film forming material；
(3) will be formulated the nano silicon dioxide of dosage, nano-calcium carbonate, antioxidant, light stabilizer, dispersant, lubricant,
Tackifier, slipping agent, coupling agent, LLDPE, cobalt sesquioxide, scandium oxide and zirconium dioxide are added in mixing machine and mix, and obtain
To mixture c, mixture c will be obtained and be placed in the obtained masterbatch C of double screw extruder extrusion, obtained masterbatch C and HDPE is being pinched
Enter mixing in pressurization internal mixer after being mediated in conjunction machine and obtains outer layer film forming material；
(4) the internal layer film forming material, middle level film forming material and outer layer film forming material that will be respectively obtained in above-mentioned steps (1), (2), (3)
Progress coextrusion casting stretching in three-layer co-extrusion tape casting machine is added and is cast PE films to get to the delustring.
Preferably, in above-mentioned steps (1)-(3)：
The time mixed in the mixing machine is 30min；
The draw ratio of the double screw extruder is 44；
The transportation section of the double screw extruder, melt zone, mixing section, exhaust section, homogenizing zone temperature be respectively：
200℃、220℃、240℃、240℃、220℃；
The rotating speed of the screw rod of the double screw extruder is 550r/min；
The time mediated in the kneader is 30min；
The time of mixing in the mixer is 15-30min, and the temperature of mixing is 160-180 DEG C.
Preferably, the draw ratio that the coextrusion casting described in above-mentioned steps (4) stretches is 1.8-2.2：1.
Compared with prior art, the present invention has gain effect below：
(1) delustring curtain coating PE films made from have good homogeneity, flexibility and extinction, and maintain good
Intensity, it is nonflammable.
(2) nanometer grade silica and calcium carbonate are chosen, and adjusts the proportioning of titanate coupling agent and silane coupling agent,
The compatibility for promoting inorganic filler nano-calcium carbonate and nano silicon dioxide and organic resin molecule improves the machinery of PE films
Performance and extinction.
(3) present invention introduces silicoaluminophosphate molecular by adjusting the composition and content of the ingredient in PE film inner layers, middle level and outer layer
Sieve, aluminum phosphate, PA, cobalt sesquioxide, scandium oxide and zirconium dioxide assign film different functions, by between each component
Collective effect further improves the dullness of PE films, enhances thin film strength and flame retardant property.
(4) it can be applied in the high-grade packing film for needing to have extinction, can also apply in flame-retardant pack
In.
Specific implementation mode
The explanation of following embodiment is merely used to help understand the method and its core concept of the present invention.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvement and modification are also fallen within the protection scope of the claims of the present invention.To disclosed implementation
The following the description of example, enables those skilled in the art to implement or use the present invention.Various modifications to these embodiments
It will be apparent to those skilled in the art, the general principles defined herein can not depart from this
In the case of the spirit or scope of invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to illustrated herein
These embodiments in, but can be applied to meet principles disclosed herein and the consistent broader range of novel point.
Unless otherwise defined, all technical and scientific terms used herein have and the technical field of the invention
The normally understood identical meaning of those of ordinary skill.
A kind of 1 delustring of embodiment is cast PE films
Formula meter is as follows：
Wherein：The average grain diameter of nano silicon dioxide is 100nm；The average grain diameter of nano-calcium carbonate is 100nm；Titanate esters
The weight part ratio of titanate coupling agent and silane coupling agent is 2 in the blend of coupling agent and silane coupling agent：1；Sial point
Son sieve is Y type molecular sieve, and the molfraction ratio of silicon atom and aluminium atom is 1.5：1.
Preparation method includes the following steps：
(1) take 1,098 0.5 parts of 20 parts of 2 parts of nano silicon dioxide, nano-calcium carbonate, antioxidant, light by weight steady
Determine 0.5 part of agent UV-419,12 parts of polyvinyl alcohol, 8 parts of odium stearate, 0.5 part of sodium carboxymethylcellulose, 2 parts of oleamide, titanium
Mixing is added in 8 parts of 1 part of 20 parts of 1 part of blend, LLDPE, the Si-Al molecular sieve and aluminum phosphate of acid esters coupling agent and silicic acid coupling agent
30min is mixed in machine, obtains mixture a, and obtained mixture a, which is placed in double screw extruder, squeezes out obtained masterbatch A, twin-screw
The transportation section of extruder, melt zone, mixing section, exhaust section, homogenizing zone temperature be respectively：200℃、220℃、240℃、240
DEG C, 220 DEG C, the rotating speed of screw rod is 550r/min, obtained masterbatch A and HDPE are mediated to enter after 30min in kneader adds
Mixing 15min obtains internal layer film forming material in densification mill；
(2) take 1,098 0.5 parts of 20 parts of 2 parts of nano silicon dioxide, nano-calcium carbonate, antioxidant, the light of agent by weight steady
Determine 0.5 part of agent UV-419,12 parts of polyvinyl alcohol, 8 parts of odium stearate, 0.5 part of sodium carboxymethylcellulose, 2 parts of oleamide, titanium
It mixes 30 minutes, obtains in 20 parts of 1 part of blend, the LLDPE and 2 parts of addition mixing machines of PA of acid esters coupling agent and silicic acid coupling agent
To mixture b, obtained mixture b is placed in double screw extruder squeezes out masterbatch B is made, the transportation section of double screw extruder,
Melt zone, mixing section, exhaust section, homogenizing zone temperature be respectively：200 DEG C, 220 DEG C, 240 DEG C, 240 DEG C, 220 DEG C, screw rod
Rotating speed is 550r/min, and obtained masterbatch B and HDPE are mediated mixing in pressurization internal mixer of entering after 30min in kneader
15min's arrives middle level film forming material；
(3) take 1,098 0.5 parts of 20 parts of 2 parts of nano silicon dioxide, nano-calcium carbonate, antioxidant, light by weight steady
Determine 0.5 part of agent UV-419,12 parts of polyvinyl alcohol, 8 parts of odium stearate, 0.5 part of sodium carboxymethylcellulose, 2 parts of oleamide, titanium
1.5 parts of 0.2 part of 20 parts of 1 part of blend, LLDPE, cobalt sesquioxide, the scandium oxide of acid esters coupling agent and silicic acid coupling agent
30min is mixed in 1 part of addition mixing machine of zirconium dioxide, obtains mixture c, obtained mixture c is placed in twin-screw extrusion
Machine, which squeezes out, is made masterbatch C, the transportation section of double screw extruder, melt zone, mixing section, exhaust section, homogenizing zone temperature be respectively：
200 DEG C, 220 DEG C, 240 DEG C, 240 DEG C, 220 DEG C, the rotating speed of screw rod is 550r/min, and obtained masterbatch A and HDPE is being mediated
Enter mixing 15min in pressurization internal mixer in machine after kneading 30min and obtains outer layer film forming material；
(4) the internal layer film forming material, middle level film forming material and outer layer film forming material that are respectively obtained in step (1), (2), (3) are added
Coextrusion casting stretching is carried out in three-layer co-extrusion tape casting machine, controls draw ratio 1.8：1 to get.
A kind of 2 delustring of embodiment is cast PE films
Formula meter is as follows：
| Embodiment 2 | Internal layer/part | Middle level/part | Outer layer/part |
| Nano silicon dioxide | 8 | 8 | 8 |
| Nano-calcium carbonate | 10 | 10 | 10 |
| Antioxidant 1010 | 2 | 2 | 2 |
| Light stabilizer GW-4611 | 2 | 2 | 2 |
| Polyvinylpyrrolidone | 5 | 5 | 5 |
| Glycerin monostearate | 3 | 3 | 3 |
| Sodium carboxymethylcellulose | 2 | 2 | 2 |
| Erucyl amide | 0.5 | 0.5 | 0.5 |
| The blend of titanate coupling agent and silicic acid coupling agent | 2.5 | 2.5 | 2.5 |
| LLDPE | 10 | 10 | 10 |
| Si-Al molecular sieve | 5 | 0 | 0 |
| Aluminum phosphate | 2 | 0 | 0 |
| PA | 0 | 9 | 0 |
| Cobalt sesquioxide | 0 | 0 | 1 |
| Scandium oxide | 0 | 0 | 0.5 |
| Zirconium dioxide | 0 | 0 | 2 |
| HDPE | 60 | 60 | 60 |
Wherein：The average grain diameter of nano silicon dioxide is 400nm；The average grain diameter of nano-calcium carbonate is 400nm；Titanate esters
The weight part ratio of titanate coupling agent and silane coupling agent is 2 in the blend of coupling agent and silane coupling agent：1；Sial point
Son sieve is Y type molecular sieve, and the molfraction ratio of silicon atom and aluminium atom is 3：1.
Preparation method, substantially with embodiment 1, with embodiment 1 the difference is that：The mixing in step (1), (2), (3)
Time is 30min, and smelting temperature is 180 DEG C；The draw ratio of casting and stretching is 2.2 in step (4)：1.
A kind of 3 delustring of embodiment is cast PE films
Formula meter is as follows：
| Embodiment 3 | Internal layer/part | Middle level/part | Outer layer/part |
| Nano silicon dioxide | 3 | 3 | 3 |
| Nano-calcium carbonate | 17 | 17 | 17 |
| The blend of antioxidant 1098 and 1010 | 1 | 1 | 1 |
| Light stabilizer UV-419 | 1.5 | 1.5 | 1.5 |
| Polyethylene of dispersing agent pyrrolidones | 10 | 10 | 10 |
| Lubricant glycerin monostearate and/or odium stearate | 4 | 4 | 4 |
| Sodium carboxymethylcellulose | 1 | 1 | 1 |
| The blend of oleamide and erucyl amide | 1.5 | 1.5 | 1.5 |
| The blend of titanate coupling agent and silicic acid coupling agent | 1.5 | 1.5 | 1.5 |
| LLDPE | 19 | 19 | 19 |
| Si-Al molecular sieve | 4 | 0 | 0 |
| Aluminum phosphate | 6 | 0 | 0 |
| PA | 0 | 4 | 0 |
| Cobalt sesquioxide | 0 | 0 | 0.4 |
| Scandium oxide | 0 | 0 | 1.2 |
| Zirconium dioxide | 0 | 0 | 1.3 |
| HDPE | 55 | 55 | 55 |
Wherein：The average grain diameter of nano silicon dioxide is 150nm；The average grain diameter of nano-calcium carbonate is 150nm；Titanate esters
The weight part ratio of titanate coupling agent and silane coupling agent is 2 in the blend of coupling agent and silane coupling agent:1；Sial point
Son sieve is Y type molecular sieve, and the molfraction ratio of silicon atom and aluminium atom is 2:1.
Preparation method, substantially with embodiment 1, with embodiment 1 the difference is that：In step (1), (2), (3) mixing when
Between be 22min, the temperature of mixing is 165 DEG C；The draw ratio of casting and stretching is 1.9 in step (4)：1.
A kind of 4 delustring of embodiment is cast PE films
Formula meter is as follows：
Wherein, the average grain diameter of nano silicon dioxide is 200nm；The average grain diameter of nano-calcium carbonate is 200nm；Titanate esters
The weight part ratio of titanate coupling agent and silane coupling agent is 2 in the blend of coupling agent and silane coupling agent：1, sial point
Son sieve is Y type molecular sieve, and the molfraction ratio of silicon atom and aluminium atom is 2.5：1.
Preparation method, substantially with embodiment 1, with embodiment 1 the difference is that：The mixing in step (1), (2), (3)
Time is 28min, and the temperature of mixing is 175 DEG C；The draw ratio of casting and stretching is 2.1 in step (4)：1.
A kind of 5 delustring of embodiment is cast PE films
Formula meter is as follows：
| Embodiment 5 | Internal layer/part | Middle level/part | Outer layer/part |
| Nano silicon dioxide | 5 | 5 | 5 |
| Nano-calcium carbonate | 16 | 16 | 16 |
| Antioxidant 1098 | 1.2 | 1.2 | 1.2 |
| Light stabilizer UV-419 | 1.2 | 1.2 | 1.2 |
| Polyvinylpyrrolidone | 8 | 8 | 8 |
| Glycerin monostearate | 5 | 5 | 5 |
| Sodium carboxymethylcellulose | 1.2 | 1.2 | 1.2 |
| Oleamide | 1.2 | 1.2 | 1.2 |
| The blend of titanate coupling agent and silicic acid coupling agent | 1.8 | 1.8 | 1.8 |
| LLDPE | 16 | 16 | 16 |
| Si-Al molecular sieve | 3 | 0 | 0 |
| Aluminum phosphate | 5 | 0 | 0 |
| PA | 0 | 5 | 0 |
| Cobalt sesquioxide | 0 | 0 | 0.5 |
| Scandium oxide | 0 | 0 | 1 |
| Zirconium dioxide | 0 | 0 | 1.5 |
| HDPE | 53 | 53 | 53 |
Wherein, the average grain diameter of nano silicon dioxide is 300nm；The average grain diameter of nano-calcium carbonate is 300nm；Titanate esters
The weight part ratio of titanate coupling agent and silane coupling agent is 2 in the blend of coupling agent and silane coupling agent：1, sial point
Son sieve is Y type molecular sieve, and the molfraction ratio of silicon atom and aluminium atom is 3:1.
Preparation method, substantially with embodiment 1, with embodiment 1 the difference is that：In step (1), (2), (3) mixing when
Between be 30min, the temperature of mixing is 170 DEG C；The draw ratio of casting and stretching is 2 in step (4)：1.
A kind of 1 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in internal layer, middle level and outer layer formula without titanate esters idol for embodiment 5
Join agent
Preparation method is substantially the same as embodiment 5.
A kind of 2 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in internal layer, middle level and outer layer formula without silane coupled for embodiment 5
Agent.
Preparation method is substantially the same as embodiment 5.
A kind of 3 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in the formula of internal layer, middle level and outer layer without titanate esters for embodiment 5
Coupling agent and silane coupling agent.
Preparation method is substantially the same as embodiment 5.
A kind of 4 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in core formulation without containing Si-Al molecular sieve for embodiment 5.
Preparation method is substantially the same as embodiment 5.
A kind of 5 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in core formulation without aluminum phosphate for embodiment 5.
Preparation method is substantially the same as embodiment 5.
A kind of 6 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in core formulation without Si-Al molecular sieve and aluminum phosphate for embodiment 5.
Preparation method is substantially the same as embodiment 5.
A kind of 7 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in middle layer formula without PA for embodiment 5.
Preparation method is substantially the same as embodiment 5.
A kind of 8 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in outer layer formula without cobalt sesquioxide for embodiment 5.
Preparation method is substantially the same as embodiment 5.
A kind of 9 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in outer layer formula without scandium oxide for embodiment 5.
Preparation method is substantially the same as embodiment 5.
A kind of 10 delustring of comparative example is cast PE films
Formula is substantially with embodiment 5, with being distinguished as in outer layer formula without zirconium dioxide for embodiment 5.
A kind of 11 delustring of comparative example is cast PE films
Preparation method is substantially the same as embodiment 5.
Formula is substantially with embodiment 5, with being distinguished as in outer layer formula without cobalt sesquioxide, three oxidations two for embodiment 5
Scandium and zirconium dioxide.
Preparation method is substantially the same as embodiment 5.
A kind of 12 delustring of comparative example is cast PE films
Formula substantially with embodiment 5, with embodiment 5 be distinguished as in formula without titanate coupling agent, silane coupling agent,
Si-Al molecular sieve, aluminum phosphate, PA, cobalt sesquioxide, scandium oxide and zirconium dioxide.
Preparation method is substantially the same as embodiment 5.
A kind of 13 delustring of comparative example is cast PE films
Formula substantially with embodiment 5, with embodiment 5 be distinguished as the formula of the outer layer in embodiment 5 is adjusted to middle level,
The formula in middle level is adjusted to outer layer.
Preparation method is substantially the same as embodiment 5.
A kind of 14 delustring of comparative example is cast PE films
Formula substantially with embodiment 5, with embodiment 5 be distinguished as the middle layer formula in embodiment 5 is adjusted to internal layer, will
Core formulation is adjusted to middle level.
Preparation method is substantially the same as embodiment 5.
A kind of 15 delustring of comparative example is cast PE films
Formula substantially with embodiment 5, with embodiment 5 be distinguished as the middle layer formula in embodiment 5 is adjusted to internal layer, will
Core formulation is adjusted to outer layer, and outer layer formula is adjusted to middle level.
Preparation method is substantially the same as embodiment 5.
A kind of 16 delustring of comparative example is cast PE films
Formula substantially with embodiment 5, with embodiment 5 be distinguished as the outer layer formula in embodiment 5 is adjusted to internal layer, will
Core formulation is adjusted to outer layer.
Preparation method is substantially the same as embodiment 5.
A kind of 17 delustring of comparative example curtain coating curtain coating PE films
Formula substantially with embodiment 5, with embodiment 5 be distinguished as the outer layer formula in embodiment 5 is adjusted to internal layer, will
Core formulation is adjusted to middle level, and middle layer formula is adjusted to outer layer.
Preparation method is substantially the same as embodiment 5.
Comparative example 18
The polyethylene film provided in embodiment 3 in Chinese patent 201110352249.5.
Comparative example 19
The polyethylene film provided in embodiment 1 in Chinese patent 201510369271.9
The PE films prepared respectively through embodiment 1-5 and comparative example 1-19 are taken to carry out glossiness, tensile strength, punctured resistance
And oxygen index (OI) test.Wherein, glossiness is tested according to method specified in GB/T 8807-1988 from 60 ° of angles；Draftability
It can be measured according to method specified in GB/T 1040.3-2006；Oxygen index (OI) is according to side specified in GB/T 2406-2008
Method is measured, to show the anti-flammability of material；Puncture strength is surveyed according to method specified in GB/T 10004-2008
It is fixed.Test result such as table 1：
Table 1
By above-mentioned test result it is found that the glossiness maximum of delustring PE films provided by the invention is only 9.3%, have good
Extinction, can apply delustring packaging in.
In addition, delustring PE film longitudinal tensile strength provided by the invention is more than 61MPa, transverse tensile strength is more than 73MPa,
Puncture strength is more than 6.3N.
Also, the oxygen index (OI) of delustring PE films provided by the invention is more than 25.6%, has good anti-flammability, has expanded and disappeared
The application range of light PE films.
In experimental data in upper table, comparative example 1-17 is carried out based on embodiment 5, in order to verify selection group of the present invention
The characteristic divided adjusts formula.
Comparative example 1-3 can be seen with the comparison of embodiment 5 to verify the effect of titanate coupling agent and silane coupling agent
Go out, when the coupling agent of system is the blend of the two, and weight part ratio is 2：When 1, can improve tensile strength and
Punctured resistance and flame retardant property, the influence to extinction are smaller.
It is that can be seen that with the comparison of embodiment 5 to verify the effect of Si-Al molecular sieve and aluminum phosphate in comparative example 4-6
Si-Al molecular sieve influences clearly the extinction of PE films, and the influence to intensity is smaller.From comparative example 6 it can be seen that aluminum phosphate
It is affected to thin film strength and oxygen index (OI), the anti-flammability of film can be influenced.Comparative example 7 is while being free of Si-Al molecular sieve
And aluminum phosphate, with the comparison of embodiment 5 it can be seen that the properties of film are remarkably decreased.
Comparative example 7 is that the glossiness raising as can be seen that when without PA is compared with embodiment 5 in order to verify the effect of PA,
Extinction declines, and is influenced on film strength and anti-flammability smaller.
Comparative example 8-11 is to verify cobalt sesquioxide, scandium oxide and the effect of zirconium dioxide.It is right with embodiment 5
It is affected to PE film glossiness than can be seen that cobalt sesquioxide, scandium oxide and zirconium dioxide are to PE film strengths
And anti-flammability is affected.Comparative example 11 is to be free of the feelings of cobalt sesquioxide, scandium oxide and zirconium dioxide in formula simultaneously
Condition, at this time the properties of film decline.
Comparative example 12 is to be free of titanate coupling agent, silane coupling agent, Si-Al molecular sieve, aluminum phosphate, PA, three oxidations simultaneously
The case where two cobalts, scandium oxide and zirconium dioxide, can be seen that extinction with the comparison of embodiment 5, tensile strength, puncture by force
Degree and anti-flammability are remarkably decreased.
Comparative example 13-17 is mutually to exchange the formula in internal layer, middle level, outer layer, it can be seen that PE in its experimental result
Each performance of film reduces.
Embodiment 1-5 is compared with comparative example 18-19, it can be seen that properties of the invention are superior to comparative example
18-19。
In conclusion delustring curtain coating PE films provided by the invention are prepared by choosing specific formula material, have
There are lower glossiness, higher tensile strength, good puncture resistance and anti-flammability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of delustring is cast PE films, it is characterised in that its three-decker with internal layer, middle level and outer layer：
Wherein, the raw material for preparing of the internal layer of delustring curtain coating PE films includes by weight：Nano silicon dioxide 2-8
Part, 10-20 parts of nano-calcium carbonate, 0.5-2 parts of antioxidant, 0.5-2 parts of light stabilizer, 5-12 parts of dispersant, 3-8 parts of lubricant,
0.5-2 parts of tackifier, 0.5-2 parts of slipping agent, 1-2.5 parts of coupling agent, 10-20 parts of LLDPE, 1-5 parts of Si-Al molecular sieve, phosphoric acid
40-60 parts of 2-8 parts of aluminium and HDPE.
The raw material for preparing in the middle level of the delustring curtain coating PE films includes by weight：2-8 parts of nano silicon dioxide, nanometer
10-20 parts of calcium carbonate, 0.5-2 parts of antioxidant, 0.5-2 parts of light stabilizer, 5-12 parts of dispersant, 3-8 parts of lubricant, tackifier
40-60 parts of 0.5-2 parts, 0.5-2 parts of slipping agent, 1-2.5 parts of coupling agent, 10-20 parts of LLDPE, 2-9 parts of PA and HDPE.
The raw material for preparing of the outer layer of the delustring curtain coating PE films includes by weight：2-8 parts of nano silicon dioxide, nanometer
10-20 parts of calcium carbonate, 0.5-2 parts of antioxidant, 0.5-2 parts of light stabilizer, 5-12 parts of dispersant, 3-8 parts of lubricant, tackifier
0.5-2 parts, 0.5-2 parts of slipping agent, 1-2.5 parts of coupling agent, 10-20 parts of LLDPE, 0.2-1 parts of cobalt sesquioxide, three oxidation two
40-60 parts of scandium 0.5-1.5,1-2 parts of zirconium dioxide and HDPE.
2. a kind of delustring is cast PE films, it is characterised in that its three-decker with internal layer, middle level and outer layer：
Wherein, the raw material for preparing of the internal layer of delustring curtain coating PE films includes by weight：Nano silicon dioxide 3-7
Part, 14-17 parts of nano-calcium carbonate, 1-1.5 parts of antioxidant, 1-1.5 parts of light stabilizer, 7-10 parts of dispersant, 4-7 parts of lubricant,
1-1.5 parts of tackifier, 1-1.5 parts of slipping agent, 1.5-2 parts of coupling agent, 15-19 parts of LLDPE, 2-4 parts of Si-Al molecular sieve, phosphoric acid
50-55 parts of 4-6 parts of aluminium and HDPE.
The raw material for preparing in the middle level of the delustring curtain coating PE films includes by weight：3-7 parts of nano silicon dioxide, nanometer
14-17 parts of calcium carbonate, 1-1.5 parts of antioxidant, 1-1.5 parts of light stabilizer, 7-10 parts of dispersant, 4-7 parts of lubricant, tackifier 1-
50-55 parts of 1.5 parts, 1-1.5 parts of slipping agent, 1.5-2 parts of coupling agent, 15-19 parts of LLDPE, 4-6 parts of PA and HDPE.
The raw material for preparing of the outer layer of the delustring curtain coating PE films includes by weight：3-7 parts of nano silicon dioxide, nanometer
14-17 parts of calcium carbonate, 1-1.5 parts of antioxidant, 1-1.5 parts of light stabilizer, 7-10 parts of dispersant, 4-7 parts of lubricant, tackifier 1-
1.5 parts, 1-1.5 parts of slipping agent, 1.5-2 parts of coupling agent, 15-19 parts of LLDPE, 0.4-0.6 parts of cobalt sesquioxide, three oxidation two
0.8-1.2 parts of scandium, 1.3-1.7 parts and HDPE50-55 parts of zirconium dioxide.
3. a kind of delustring is cast PE films, it is characterised in that its three-decker with internal layer, middle level and outer layer：
Wherein, the raw material for preparing of the internal layer of delustring curtain coating PE films includes by weight：5 parts of nano silicon dioxide,
It is 16 parts of nano-calcium carbonate, 1.2 parts of antioxidant, 1.2 parts of light stabilizer, 8 parts of dispersant, 5 parts of lubricant, 1.2 parts of tackifier, smooth
53 parts of 1.2 parts of agent, 1.8 parts of coupling agent, 16 parts of LLDPE, 3 parts of Si-Al molecular sieve, 5 parts of aluminum phosphate and HDPE.
The raw material for preparing in the middle level of the delustring curtain coating PE films includes by weight：5 parts of nano silicon dioxide, nano-sized carbon
16 parts of sour calcium, 1.2 parts of antioxidant, 1.2 parts of light stabilizer, 8 parts of dispersant, 5 parts of lubricant, 1.2 parts of tackifier, slipping agent 1.2
Part, 1.8 parts of coupling agent, 16 parts of LLDPE, 5 parts of PA and 53 parts of HDPE.
The raw material for preparing of the outer layer of the delustring curtain coating PE films includes by weight：5 parts of nano silicon dioxide, nano-sized carbon
16 parts of sour calcium, 1.2 parts of antioxidant, 1.2 parts of light stabilizer, 8 parts of dispersant, 5 parts of lubricant, 1.2 parts of tackifier, slipping agent 1.2
Part, 1.8 parts of coupling agent, 16 parts of LLDPE, 0.5 part of cobalt sesquioxide, 1 part of scandium oxide, 1.5 parts of zirconium dioxide and HDPE
53 parts
4. the delustring as described in claim 1-3 any one is cast PE films, it is characterised in that：
The antioxidant is antioxidant 1098 and/or antioxidant 1010；
The light stabilizer is light stabilizer UV-419 and/or light stabilizer GW-4611；
The dispersant is polyvinylpyrrolidone (PVP) and/or polyvinyl alcohol；
The lubricant is glycerin monostearate and/or stearic acid；
The tackifier are sodium carboxymethylcellulose；
The slipping agent is oleamide and/or erucyl amide；
The coupling agent is the blend of titanate coupling agent and silane coupling agent.
5. the internal layer of delustring curtain coating PE films as claimed in claim 4 is prepared in raw material, titanate esters are coupled in the blend of coupling agent
The weight part ratio of agent and silane coupling agent is 2:1.
6. internal layer, middle level and outer layer are prepared in raw material in the delustring curtain coating PE films as described in claim 1-3：
The average grain diameter of nano silicon dioxide is 100-400nm；
The average grain diameter of nano-calcium carbonate is 100-400nm.
It is Y type molecular sieve that 7. the internal layer of the delustring curtain coating PE films as described in claim 1-3, which prepares the Si-Al molecular sieve in raw material,
The molfraction of silicon atom and aluminium atom ratio is 1.5-3：1.
8. the preparation method of the delustring curtain coating PE films described in any one of claim 1-3, it is characterised in that：Including following step
Suddenly：
(1) nano silicon dioxide, nano-calcium carbonate, antioxidant, light stabilizer, dispersant, lubricant, the thickening of dosage will be formulated
Agent, slipping agent, coupling agent, LLDPE, Si-Al molecular sieve, aluminum phosphate are added in mixing machine and mix, and obtain mixture a, will be mixed
Conjunction object a is placed in double screw extruder and squeezes out obtained masterbatch A, enters after obtained masterbatch A and HDPE are mediated in kneader and adds
Mixing obtains internal layer film forming material in densification mill；
(2) nano silicon dioxide, nano-calcium carbonate, antioxidant, light stabilizer, dispersant, lubricant, the thickening of dosage will be formulated
Agent, slipping agent, coupling agent, LLDPE and PA are added in mixing machine and mix, and obtain mixture b, will obtain mixture b and are placed in double spiral shells
Bar extruder, which squeezes out, is made masterbatch B, enters mixing in pressurization internal mixer after obtained masterbatch B and HDPE are mediated in kneader
Obtain middle level film forming material；
(3) nano silicon dioxide, nano-calcium carbonate, antioxidant, light stabilizer, dispersant, lubricant, the thickening of dosage will be formulated
Agent, slipping agent, coupling agent, LLDPE, cobalt sesquioxide, scandium oxide and zirconium dioxide are added in mixing machine and mix, and are mixed
Object c is closed, mixture c will be obtained and be placed in the obtained masterbatch C of double screw extruder extrusion, by obtained masterbatch C and HDPE in kneader
Enter mixing in pressurization internal mixer after middle kneading and obtains outer layer film forming material；
(4) the internal layer film forming material, middle level film forming material and outer layer film forming material that are respectively obtained in above-mentioned steps (1), (2), (3) are added
Coextrusion casting stretching is carried out in three-layer co-extrusion tape casting machine is cast PE films to get to the delustring.
9. preparation method as claimed in claim 8, it is characterised in that：In step (1)-(3)：
The time mixed in mixing machine is 30min；
The draw ratio of double screw extruder is 44；
The transportation section of double screw extruder, melt zone, mixing section, exhaust section, homogenizing zone temperature be respectively：200℃、220℃、
240℃、240℃、220℃；
The rotating speed of the screw rod of double screw extruder is 550r/min；
The time mediated in kneader is 30min；
The time of mixing in mixer is 15-30min, and the temperature of mixing is 160-180 DEG C.
10. preparation method as claimed in claim 8, it is characterised in that：The stretching that coextrusion casting in the step (4) stretches
Than for 1.8-2.2：1.
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