CN110497680A - A kind of high temperature resistant high barrier polypropylene screen and preparation method thereof - Google Patents
A kind of high temperature resistant high barrier polypropylene screen and preparation method thereof Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
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- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/08—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C08K3/20—Oxides; Hydroxides
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Abstract
The invention discloses a kind of high temperature resistant high barrier polypropylene screens and preparation method thereof, are related to polypropylene packaging film field, it is desirable to provide a kind of polypropylene film with good high temperature resistance and high obstructing performance, technical points include heat-resisting outer layer and internal layer；The heat-resisting outer layer includes following parts by weight: 5-15 parts of aluminium oxide, 30-60 parts of polyurethane, 3-12 parts of stabilizer；The internal layer includes following parts by weight: 50-70 parts of polypropylene, 15-30 parts of high density polyethylene (HDPE), 5-12 parts of maleic anhydride graft compatilizer, 3-10 parts of interface adhesive, 4-9 parts of age resister, polypropylene screen of the invention has good high temperature resistance and high obstructing performance, can play preferably packaging effect.
Description
Technical field
The present invention relates to polypropylene packaging film fields, more specifically, it relates to a kind of high temperature resistant high barrier polypropylene
Film and preparation method thereof.
Background technique
A kind of high molecular material of the polypropylene as high comprehensive performance has price low, and specific gravity is small, yield strength, drawing
It is excellent to stretch the mechanical performances such as intensity, surface strength, the advantages that stress cracking resistance and excellent wearability；Polypropylene film then relies on
Its due to barrier property, stability, safety and beauty the transparency, be widely used in packaging material industry.
Existing application publication number is the Chinese patent of CN109280270A, discloses a kind of high temperature resistant high barrier polypropylene
The production method of film, using two block object of isotactic polypropylene-b- polyethylene glycol as the compatilizer of isotactic polypropylene and polyvinyl alcohol,
There is polyvinyl alcohol outstanding oxygen resistance to make to advise poly- third after two block object of isotactic polypropylene-b- polyethylene glycol is as compatilizer
There is good compatibility between alkene and polyvinyl alcohol, so that polyethylene alcohol phase is can be uniformly dispersed in acrylic resin, formed
Secondary continuous phase is laminar structured, to significantly improve the barrier property of blend film, nano silica is added and improves film
Hardness, and then improve the energy of heat-resistant deformation, additionally incorporate palm wax and effectively improve tearing effects.
The purpose of the present invention, which is lain also in, provides a kind of high temperature resistant high barrier polypropylene screen and preparation method thereof, to obtain one
Kind has the polypropylene film of good high temperature resistance and high obstructing performance.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of high temperature resistant high barrier polypropylene screen
And preparation method thereof, polypropylene screen of the invention has good high temperature resistance and high obstructing performance, can play better packet
Fill effect.
To achieve the above object, the present invention provides the following technical scheme that
A kind of high temperature resistant high barrier polypropylene screen, including heat-resisting outer layer and internal layer；The heat-resisting outer layer includes following parts by weight:
5-15 parts of aluminium oxide, 30-60 parts of polyurethane, 3-12 parts of stabilizer；The internal layer includes following parts by weight: 50-70 parts of polypropylene,
15-30 parts of high density polyethylene (HDPE), 5-12 parts of maleic anhydride graft compatilizer, 3-10 parts of interface adhesive, 4-9 parts of age resister.
By taking above-mentioned technical proposal, polyurethane has good wearability as a kind of high molecular material, tool, has simultaneously
There are very high high temperature resistance and antistatic property, therefore using polyurethane as the outer layer major ingredient of polypropylene film, it can be effective
Guarantee the surface strength of polypropylene film, and polyurethane is as a kind of polar material, it is possible to prevente effectively from oxygen and titanium dioxide
The transmission of the non-polar gases such as carbon, meanwhile, the present invention is compound with polyurethane by aluminium oxide, using aluminium oxide fusing point height and hardness,
The high feature of intensity not only can effectively improve heat resistance, the mechanical property of polyurethane, but also aluminium oxide can be to urethane group
Hydrogen bonding effect is generated, the intermolecular force improved in polyurethane improves the resistance of outer layer so that making the free end of segment reduces
Every property, and aluminium oxide has absorption but non-deliquescent effect to moisture, can further erosion to avoid moisture to internal layer
While, moisture is avoided to outer layer structural damage, and stabilizer then ensure that each component is making and using process in outer layer
In stability, avoid the problem that occur aging；
Internal layer in the present invention is added high density polyethylene (HDPE), improves the crystallinity of interior layer component using polypropylene as major ingredient, makes interior
The diffusion coefficient of side reduces, and then can reinforce the barrier property of internal layer, meanwhile, maleic anhydride graft compatilizer is added, it can be with
The compatibility of polypropylene and polyethylene is effectively improved, interface adhesive is added and then reinforces the bonding strength between ectonexine, keeps away
Exempt from ectonexine there is a phenomenon where layers apart, age resister then avoids inside that aging phenomenon, and then the present invention occur in use
Polypropylene screen have good high temperature resistance and high obstructing performance.
The further setting of the present invention is that the maleic anhydride graft compatilizer includes following parts by weight: maleic anhydride 5-
10 parts, 15-30 parts of polyethylene terephthalate, 5-12 parts of polypropylene, 3-10 parts of high density polyethylene (HDPE).
It by taking above-mentioned technical proposal, is grafted using maleic anhydride, in polypropylene, high density polyethylene (HDPE) and is gathered to benzene
Acid anhydrides polar group is introduced in the carbochain of naphthalate, can be greatly improved between polypropylene, high density polyethylene (HDPE)
Compatibility and dispersibility improve the mechanical property and thermal resistance energy of internal layer, meanwhile, polyethylene terephthalate is as one
Kind high molecular material, has excellent high- and low-temperature resistance performance, can be used for a long time in 120 DEG C of temperature ranges, short-period used is resistant to
150 DEG C of high temperature are resistant to -70 DEG C of low temperature, and influence very little to its mechanical performance when high and low temperature, can be further improved polypropylene
The mechanical property and heat-resisting quantity of material, and polyethylene terephthalate gas and vapor permeability are low, that is, possess
Excellent resistance gas and water, oil and peculiar smell performance, further increases the barrier property of polypropylene film.
The further setting of the present invention is that the interface adhesive includes following parts by weight: 3-8 parts of maleic anhydride, poly- ammonia
5-12 parts of ester, 6-12 parts of polypropylene.
By taking above-mentioned technical proposal, be grafted using maleic anhydride, polypropylene, polyurethane carbochain on introduce acid anhydrides
Polar group can greatly improve compatibility and dispersibility between polypropylene, polyurethane, make the inside and outside stratum boundary of polypropylene film
Polypropylene, polyurethane molecular structure on face can be very good to be intertwined, and reinforce the cohesive strength of polypropylene, polyurethane,
And then the adhesion strength between internal layer and outer layer can be improved.
The further setting of the present invention is that the stabilizer is in dibutyitin maleate or dibutyl tin dilaurate
It is a kind of.
By taking above-mentioned technical proposal, dibutyl tin dilaurate, that dibutyitin maleate belongs to organic tin is steady
Determine agent, dibutyl tin dilaurate has excellent heat stabilization, and it is nontoxic, while there is preferable lubricity and rheology
Property；Dibutyitin maleate has excellent heat resistance and the transparency, and has good antioxygenic property, selects two laurels
Sour dibutyl tin or dibutyitin maleate can reduce what solid or liquid particle in dispersion were assembled as stabilizer
Substance keeps the stability in reaction system, no matter in the preparation process of outer layer or the use process of polypropylene film
In, all advantageously reduce being thermally decomposed between each component.
The further setting of the present invention is that the age resister includes following parts by weight: 0-20 parts of silica 1, antioxygen
Any one 6-18 parts in agent BHT, antioxidant 264 or antioxidant T501.
By taking above-mentioned technical proposal, a kind of UV resistant agent of the silica as shield type can be to ultraviolet light
Good shielding is carried out, erosion of the ultraviolet light to internal layer is avoided, meanwhile, silica is also a kind of good binder, can be with
Improve the adhesion strength between internal layer and outer layer, and antioxidant BHT, antioxidant 264 or T501 all have it is excellent anti-oxidant
Performance can prevent inner layer material from oxidation occurs and the problem of aging, ensure that the mechanical properties such as toughness, the intensity of polypropylene film
And heat resistance.
The further setting of the present invention is that the density of the high density polyethylene (HDPE) is 0.98-0.99g/cm3。
By taking above-mentioned technical proposal, use density for 0.98-0.99g/cm3The density polyethylene, can protect
Demonstrate,prove high density polyethylene (HDPE) high-crystallinity except, the branch quantity on decomposition texture is suitable, can preferably with polypropylene phase
Hold together.
Another object of the present invention is to provide a kind of preparation method of high temperature resistant high barrier polypropylene screen, including it is following
Step: by aluminium oxide, polyurethane and stabilizer is compound is prepared into outer preform matrix；
Polypropylene, high density polyethylene (HDPE), maleic anhydride graft compatilizer, interface adhesive and age resister are put into extruder
It is interior, 190-200 DEG C at a temperature of uniformly mix, the prefabricated matrix of internal layer is made in then extruding pelletization；
Outer preform matrix and the prefabricated matrix of internal layer are put into three-layer co-extrusion internal cooling blow moulding equipment, carried out using three base cylinder screw rods
Charging, melting and squeeze out after enter mold, by mold squeeze shunt after by high-intensitive vertical rotating dragger draw at
Type.
By taking above-mentioned technical proposal, the previously prepared outer preform matrix of the present invention and the prefabricated matrix of internal layer, can make
Each section property in internal layer and outside is uniform, improves the comprehensive performance of polypropylene film, meanwhile, the present invention carries out ectonexine single
Only preparation can be avoided the mutual shadow of preparation temperature between two layers while guaranteeing the normal preparation of internal layer and outer layer
It rings, finally internal layer and outer layer is pressed together, can conveniently and efficiently prepare the polypropylene of high temperature tolerance and high barrier
Film.
The further setting of the present invention is the outer preform matrix base cylinder extruder temperature are as follows: 290-300 DEG C of a warm area,
Two 300-320 DEG C of warm areas, 290-300 DEG C of three-temperature-zone, 300-310 DEG C of extrusion die；
The prefabricated matrix base cylinder extruder temperature of internal layer: 200-220 DEG C of a warm area, two 230-250 DEG C of warm areas, three-temperature-zone 200-
210 DEG C, 210-220 DEG C of extrusion die.
By taking above-mentioned technical proposal, fully ensures that the abundant melting and mixing of a component in internal layer and outer layer, make to make
Each section property of standby obtained polypropylene film is uniform, effectively improves the mechanical property and high temperature resistance of polypropylene film.
In conclusion the invention has the following advantages:
It, not only can be with using the high feature of aluminium oxide fusing point height and hardness, intensity 1. the present invention is compound with polyurethane by aluminium oxide
Heat resistance, the mechanical property of polyurethane are effectively improved, and aluminium oxide can generate hydrogen bonding effect to urethane group, improve poly-
Intermolecular force in urethane improves the barrier property of outer layer so that making the free end of segment reduces, meanwhile, in the present invention
Internal layer is added high density polyethylene (HDPE), improves the crystallinity of interior layer component using polypropylene as major ingredient, makes the diffusion coefficient drop of inside
It is low, and then the barrier property of internal layer can be reinforced, so can effectively improve in the present invention heat-resisting quantity of polypropylene film and
Barrier property；
2. the present invention can reinforce the bonding strength between ectonexine by adding interface adhesive in internal layer, avoid inside and outside
There is a phenomenon where layers apart for layer；
3. the present invention is during preparing polypropylene film, previously prepared outer preform matrix and the prefabricated matrix of internal layer can be with
Keep each section property in internal layer and outside uniform, improves the comprehensive performance of polypropylene film, meanwhile, the present invention carries out ectonexine
Individually preparation can be avoided the mutual of preparation temperature between two layers while guaranteeing the normal preparation of internal layer and outer layer
It influences, finally internal layer and outer layer is pressed together, can conveniently and efficiently prepare poly- the third of high temperature tolerance and high barrier
Alkene film.
Specific embodiment
Invention is further described in detail with reference to embodiments.
Embodiment one:
A kind of high temperature resistant high barrier polypropylene screen, including heat-resisting outer layer and internal layer；
Heat-resisting outer layer includes following parts by weight: 5 parts of aluminium oxide, 30 parts of polyurethane, 3 parts of stabilizer；
Internal layer includes following parts by weight: 50 parts of polypropylene, density 0.98g/cm315 parts of high density polyethylene (HDPE), maleic anhydride
5 parts of compatilizer, 3 parts of interface adhesive, 4 parts of age resister of grafting.
Wherein:
Maleic anhydride graft compatilizer includes following parts by weight: 5 parts of maleic anhydride, 15 parts of polyethylene terephthalate, being gathered
5 parts of propylene, 3 parts of high density polyethylene (HDPE), and be made by fusion method.
Interface adhesive includes following parts by weight: 3 parts of maleic anhydride, 5 parts of polyurethane, and 6 parts of polypropylene, and pass through fusion method
It is made.
Stabilizer is dibutyitin maleate.
Age resister includes following parts by weight: 0 part of silica 1,6 parts of antioxidant BHT.
Embodiment two:
A kind of high temperature resistant high barrier polypropylene screen, including heat-resisting outer layer and internal layer；
Heat-resisting outer layer includes following parts by weight: 8 parts of aluminium oxide, 35 parts of polyurethane, 5 parts of stabilizer；
Internal layer includes following parts by weight: 54 parts of polypropylene, density 0.98g/cm318 parts of high density polyethylene (HDPE), maleic anhydride
7 parts of compatilizer, 5 parts of interface adhesive, 5 parts of age resister of grafting.
Wherein:
Maleic anhydride graft compatilizer includes following parts by weight: 6 parts of maleic anhydride, 18 parts of polyethylene terephthalate, being gathered
8 parts of propylene, 5 parts of high density polyethylene (HDPE), and be made by fusion method.
Interface adhesive includes following parts by weight: 5 parts of maleic anhydride, 7 parts of polyurethane, and 7 parts of polypropylene, and pass through fusion method
It is made.
Stabilizer is dibutyl tin dilaurate.
Age resister includes following parts by weight: 2 parts of silica 1,10 parts of antioxidant 264.
Embodiment three:
A kind of high temperature resistant high barrier polypropylene screen, including heat-resisting outer layer and internal layer；
Heat-resisting outer layer includes following parts by weight: 10 parts of aluminium oxide, 40 parts of polyurethane, 6 parts of stabilizer；
Internal layer includes following parts by weight: 60 parts of polypropylene, density 0.99g/cm320 parts of high density polyethylene (HDPE), maleic anhydride
9 parts of compatilizer, 8 parts of interface adhesive, 7 parts of age resister of grafting.
Wherein:
Maleic anhydride graft compatilizer includes following parts by weight: 8 parts of maleic anhydride, 20 parts of polyethylene terephthalate, being gathered
9 parts of propylene, 8 parts of high density polyethylene (HDPE) is simultaneously made by fusion method.
Interface adhesive includes following parts by weight: 7 parts of maleic anhydride, 9 parts of polyurethane, and 8 parts of polypropylene, and pass through fusion method
It is made.
Stabilizer is dibutyitin maleate.
Age resister includes following parts by weight: 7 parts of silica 1,15 parts of person's antioxidant T501.
Example IV:
A kind of high temperature resistant high barrier polypropylene screen, including heat-resisting outer layer and internal layer；
Heat-resisting outer layer includes following parts by weight: 14 parts of aluminium oxide, 55 parts of polyurethane, 11 parts of stabilizer；
Internal layer includes following parts by weight: 65 parts of polypropylene, density 0.99g/cm325 parts of high density polyethylene (HDPE), maleic anhydride
10 parts of compatilizer, 9 parts of interface adhesive, 8 parts of age resister of grafting.
Wherein:
Maleic anhydride graft compatilizer includes following parts by weight: 9 parts of maleic anhydride, 28 parts of polyethylene terephthalate, being gathered
10 parts of propylene, 8 parts of high density polyethylene (HDPE), and be made by fusion method.
Interface adhesive includes following parts by weight: 7 parts of maleic anhydride, 5-12 parts of polyurethane, and 10 parts of polypropylene, and by molten
Melt method to be made.
Stabilizer is dibutyl tin dilaurate.
Age resister includes following parts by weight: 8 parts of silica 1,18 parts of antioxidant BHT.
Embodiment five:
A kind of high temperature resistant high barrier polypropylene screen, including heat-resisting outer layer and internal layer；
Heat-resisting outer layer includes following parts by weight: 15 parts of aluminium oxide, 60 parts of polyurethane, 12 parts of stabilizer；
Internal layer includes following parts by weight: 70 parts of polypropylene, density 0.99g/cm330 parts of high density polyethylene (HDPE), maleic anhydride
12 parts of compatilizer, 10 parts of interface adhesive, 9 parts of age resister of grafting.
Wherein:
Maleic anhydride graft compatilizer includes following parts by weight: 10 parts of maleic anhydride, 30 parts of polyethylene terephthalate, being gathered
12 parts of propylene, 10 parts of high density polyethylene (HDPE), and be made by fusion method.
Interface adhesive includes following parts by weight: 8 parts of maleic anhydride, 12 parts of polyurethane, and 12 parts of polypropylene, and pass through melting
Method is made.
Stabilizer is dibutyitin maleate.
Age resister includes following parts by weight: 20 parts of silica, 18 parts of antioxidant BHT.
Embodiment six:
A kind of preparation method of high temperature resistant high barrier polypropylene screen, comprising the following steps:
By aluminium oxide, polyurethane and stabilizer is compound is prepared into outer preform matrix；
Polypropylene, high density polyethylene (HDPE), maleic anhydride graft compatilizer, interface adhesive and age resister are put into extruder
It is interior, 190-200 DEG C (preferably 198 DEG C) at a temperature of uniformly mix, the prefabricated matrix of internal layer is made in then extruding pelletization；
Outer preform matrix and the prefabricated matrix of internal layer are put into three-layer co-extrusion internal cooling blow moulding equipment, carried out using three base cylinder screw rods
Charging, melting and squeeze out after enter mold, by mold squeeze shunt after by high-intensitive vertical rotating dragger draw at
Type.
Wherein:
Outer preform matrix the preparation method comprises the following steps: by aluminium oxide, polyurethane and stabilizer be put into control gentle agitation container
In, then 120 DEG C at a temperature of carry out vacuum dehydration 2 hours, be then naturally cooling to room temperature, then be added 1-4 butanediol,
Parts by weight are the 20% of stabilizer, are stirred evenly, and L-MDI is then added, and parts by weight are the 15% of stabilizer, stir 60s, vacuum
Deaerate 40s, brings into dry mold, is solidified, and condition of cure is 100 DEG C/h, finally places product at room temperature one week
.
Outer preform matrix base cylinder extruder temperature are as follows: 290-300 DEG C of a warm area (preferably 300 DEG C), two warm area 300-320
DEG C (preferably 312 DEG C), 290-300 DEG C of three-temperature-zone (preferably 298 DEG C), 300-310 DEG C of extrusion die (preferably 308 DEG C).
The prefabricated matrix base cylinder extruder temperature of internal layer: 200-220 DEG C of a warm area (preferably 210 DEG C), two 230-250 DEG C of warm areas
(preferably 240 DEG C), 200-210 DEG C of three-temperature-zone (preferably 206 DEG C), 210-220 DEG C of extrusion die (preferably 215 DEG C).
Comparative example:
The polypropylene film that the present invention is produced in the Chinese patent of CN109280270A using application publication number as comparative example, and and
Embodiment one carries out correlated performance detection to embodiment five by film made from embodiment six together in the present invention.
Performance detection:
Tensile strength and tension fracture elongation rate: it is measured according to method specified in GB/T 1040.3-2006；
Impact strength: it is measured according to method specified in GB8809-1988, wherein sample film is with a thickness of 25 ± 2 μm；
Tearing strength: being measured according to method specified in GB/T 16578.2-2009, using rectangle sample (having a size of
75mm × 63mm), testing film is with a thickness of 25 ± 2 μm；
Moisture-vapor transmission: it is measured according to method specified in GB/T 21529-2008；
OTR oxygen transmission rate: it is measured according to method specified in GB/T2038-2000；
High temperature resistance: being CN using brand, and model is RSY-01, and the film shrink ability meter of RSY-R2 detects film
Heat distortion temperature.
Testing result is as follows:
By testing result it is recognised that polypropylene film of the invention not only excellent combination property, but also there is good resistance to height
Warm nature energy and barrier property.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (8)
1. a kind of high temperature resistant high barrier polypropylene screen, it is characterised in that: including heat-resisting outer layer and internal layer；The heat-resisting outer layer packet
Include following parts by weight: 5-15 parts of aluminium oxide, 30-60 parts of polyurethane, 3-12 parts of stabilizer；The internal layer includes following parts by weight:
50-70 parts of polypropylene, 15-30 parts of high density polyethylene (HDPE), 5-12 parts of maleic anhydride graft compatilizer, 3-10 parts of interface adhesive,
4-9 parts of age resister.
2. a kind of high temperature resistant high barrier polypropylene screen according to claim 1, it is characterised in that: the maleic anhydride connects
Branch compatilizer includes following parts by weight: 5-10 parts of maleic anhydride, 15-30 parts of polyethylene terephthalate, and polypropylene 5-
12 parts, 3-10 parts of high density polyethylene (HDPE).
3. a kind of high temperature resistant high barrier polypropylene screen according to claim 1, it is characterised in that: the interface adhesive
Including following parts by weight: 3-8 parts of maleic anhydride, 5-12 parts of polyurethane, 6-12 parts of polypropylene.
4. a kind of high temperature resistant high barrier polypropylene screen according to claim 1, it is characterised in that: the stabilizer is horse
Come one of sour dibutyl tin or dibutyl tin dilaurate.
5. a kind of high temperature resistant high barrier polypropylene screen according to claim 1, it is characterised in that: the age resister packet
Include following parts by weight: 0-20 parts of silica 1, any one 6-18 in antioxidant BHT, antioxidant 264 or antioxidant T501
Part.
6. a kind of high temperature resistant high barrier polypropylene screen according to claim 1, it is characterised in that: the high-density polyethylene
The density of alkene is 0.98-0.99g/cm3.
7. a kind of preparation method of high temperature resistant high barrier polypropylene screen described in -6 according to claim 1, it is characterised in that packet
Include following steps:
By aluminium oxide, polyurethane and stabilizer is compound is prepared into outer preform matrix；
Polypropylene, high density polyethylene (HDPE), maleic anhydride graft compatilizer, interface adhesive and age resister are put into extruder
It is interior, 190-200 DEG C at a temperature of uniformly mix, the prefabricated matrix of internal layer is made in then extruding pelletization；
Outer preform matrix and the prefabricated matrix of internal layer are put into three-layer co-extrusion internal cooling blow moulding equipment, carried out using three base cylinder screw rods
Charging, melting and squeeze out after enter mold, by mold squeeze shunt after by high-intensitive vertical rotating dragger draw at
Type.
8. a kind of preparation method of high temperature resistant high barrier polypropylene screen according to claim 7, it is characterised in that: described
Outer preform matrix base cylinder extruder temperature are as follows: 290-300 DEG C of a warm area, two 300-320 DEG C of warm areas, 290-300 DEG C of three-temperature-zone are squeezed
300-310 DEG C of die head out；
The prefabricated matrix base cylinder extruder temperature of internal layer: 200-220 DEG C of a warm area, two 230-250 DEG C of warm areas, three-temperature-zone 200-
210 DEG C, 210-220 DEG C of extrusion die.
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| CN111409317A (en) * | 2020-03-30 | 2020-07-14 | 北京邦维高科特种纺织品有限责任公司 | Flame-retardant, anti-toxic and high-temperature-resistant polypropylene co-extrusion film and preparation method thereof |
| CN112297566A (en) * | 2020-09-30 | 2021-02-02 | 无锡嘉友包装材料有限公司 | High-temperature-resistant high-barrier polyethylene film and preparation method thereof |
| CN112356546A (en) * | 2020-09-30 | 2021-02-12 | 无锡嘉友包装材料有限公司 | Corrosion-resistant cast polyethylene film and preparation process thereof |
| CN112778625A (en) * | 2020-12-23 | 2021-05-11 | 泗阳联欣塑业有限公司 | Corrosion-resistant plastic film and preparation method thereof |
| CN114552081A (en) * | 2021-12-14 | 2022-05-27 | 万向一二三股份公司 | High-safety lithium battery soft package aluminum-plastic film |
| CN115160698A (en) * | 2022-09-02 | 2022-10-11 | 东莞市宇川塑胶制品有限公司 | High-temperature-resistant polypropylene film for carbon fiber composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111409317A (en) * | 2020-03-30 | 2020-07-14 | 北京邦维高科特种纺织品有限责任公司 | Flame-retardant, anti-toxic and high-temperature-resistant polypropylene co-extrusion film and preparation method thereof |
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| CN112297566A (en) * | 2020-09-30 | 2021-02-02 | 无锡嘉友包装材料有限公司 | High-temperature-resistant high-barrier polyethylene film and preparation method thereof |
| CN112356546A (en) * | 2020-09-30 | 2021-02-12 | 无锡嘉友包装材料有限公司 | Corrosion-resistant cast polyethylene film and preparation process thereof |
| CN112778625A (en) * | 2020-12-23 | 2021-05-11 | 泗阳联欣塑业有限公司 | Corrosion-resistant plastic film and preparation method thereof |
| CN114552081A (en) * | 2021-12-14 | 2022-05-27 | 万向一二三股份公司 | High-safety lithium battery soft package aluminum-plastic film |
| CN114552081B (en) * | 2021-12-14 | 2023-08-15 | 万向一二三股份公司 | High-safety soft-package aluminum-plastic film for lithium battery |
| CN115160698A (en) * | 2022-09-02 | 2022-10-11 | 东莞市宇川塑胶制品有限公司 | High-temperature-resistant polypropylene film for carbon fiber composite material and preparation method thereof |
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