CN106626652A - Solvent-free composite PET/PE (Polyethylene Terephthalate/Polyethylene) film and preparation process thereof - Google Patents
Solvent-free composite PET/PE (Polyethylene Terephthalate/Polyethylene) film and preparation process thereof Download PDFInfo
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- 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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- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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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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- 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
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- 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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C09J161/14—Modified phenol-aldehyde condensates
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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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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- Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
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- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a solvent-free composite PET/PE (Polyethylene Terephthalate/Polyethylene) film and a preparation process thereof. The solvent-free composite PET/PE film comprises an outer layer, a bonding layer and a base layer, wherein one side of the bonding layer is bonded with the outer layer, and the other side of the bonding layer is bonded with the base layer; the outer layer is prepared from PET resin; the base layer is prepared from PE resin; the bonding layer is prepared from a solvent-free bonding agent; the solvent-free bonding agent is compounded by a component A and a component B; the component A comprises cashew nut shell oil modified phenolic resin, an ethylene-vinyl acetate copolymer and oxetane; the component B comprises aliphatic amine; the preparation process comprises the following steps: coating a base layer film with the solvent-free bonding agent to obtain the bonding layer; compounding an outer layer film with the bonding layer; curing an obtained composite film semi-finished product to obtain the solvent-free composite PET/PE film. The solvent-free composite PET/PE film prepared by the process provided by the invention has the advantages of thin thickness, high transparency, high peeling strength and good packaging effect.
Description
Technical field
The present invention relates to laminar product field, and in particular to a kind of solvent-free compound PET/PE films and its preparation technology.
Background technology
In recent years, with the enhancing of environmental consciousness, environmentally friendly packing material and technique be increasingly subject to composite film packaging industry with
And the favor of flexible package terminal use.Solvent-free combination process adopts solvent-free binding agent, can effectively reduce VOCs (volatility
Organic matter) release, it is not necessary to the heat blowing of bulky complex, waste gas exhaust device, reduce drying consuming of causing of link
Lose, technological process is simple, and occupation area of equipment is little, is a kind of advanced green combination process.
PET resin, also known as polyethylene terephthalate, are milky or light yellow, highly crystalline polymer,
There is excellent physical and mechanical properties, Long-Time Service temperature is up to 120 DEG C, and electrical insulating property is excellent within the scope of wider temperature, tool
There are good creep resistance, fatigue durability, rub resistance and dimensional stability.PE resins, also known as polyethylene, odorless is nontoxic, tool
There are excellent resistance to low temperature, chemical stability, resistance to acids and bases, be the maximum user of film product.
Chinese patent CN201310059122.3 discloses a kind of low viscous diaphragms of PE, including：Adhered layer, corona layer and PE
Substrate layer, the upper surface of the corona layer fits with the PE substrate layers, the lower surface of the corona layer and the adhered layer
Fit, the adhered layer is acrylic glue layer.But the patent is using acrylic glue as binding agent, bond effect
Difference, needs to add organic solvent to be diluted binding agent during bonding, and production process discharges in a large number VOCs, and drying course energy
Consumption is big, harmful exhaust is more, pollution environment.
Accordingly, it would be desirable to research and develop a kind of green, the solvent-free compound PET/PE films of environmental protection and its preparation technology.
The content of the invention
The present invention is directed to the problems referred to above, there is provided a kind of solvent-free compound PET/PE films and its preparation technology.
The present invention the adopted technical scheme that solves the above problems is：A kind of solvent-free compound PET/PE films, including it is outer
Layer, tack coat and basic unit；Wherein, tack coat side and outer bound, opposite side bonds with basic unit；Outer layer is prepared by PET resin
Form；Basic unit is prepared from by PE resins；Tack coat is prepared from by solvent-free binding agent；Solvent-free binding agent by component A and
Component B is composited；Component A includes following components：Cashew nut oil modified alkyd resin, ethylene-vinyl acetate copolymer, oxa-
Butane；Component B includes following components：Aliphatic amine.
Wherein cashew nut oil modified alkyd resin effectively improves the bonding effect of phenolic resin as main component, tough
Property is preferable；Vinyl acetate content accounts for the viscoelastic that 60%～80% ethylene-vinyl acetate copolymer is effectively improved binding agent
Property；Add marginally oxa- butane to strengthen the process of recombination reaction, reduce unreacting substance；Aliphatic amine as curing agent,
Due to molecular weight, the viscosity of solvent-free binding agent can be formulated to more suitable scope, so that being composited
Solvent-free binding agent smoothly effectively can carry out with PET outer layers, PE internal layers solvent-free compound, and film can be with high print duplication
Brush.
Further, the thickness of outer layer is 1.8 μm～5 μm.
Further, the thickness of basic unit is 1.2 μm～4 μm.
Further, the content of vinyl acetate is in ethylene-vinyl acetate copolymer：60%～80%.
Further, aliphatic amine is preferably：Diethylenetriamine, vinyl triamine, IPD, diethylin
Any one or any two in propylamine, trimethylhexamethylenediamine.
Further, the mass parts of Part A components are：30 parts～45 parts of cashew nut oil modified alkyd resin, ethyl vinyl acetate
25 parts～40 parts of ethylene copolymer, 1 part～3 parts of oxa- butane.
Further, the preparation method of component A is：By the cashew nut oil modified alkyd resin of the mass parts, ethene-vinegar
Sour ethylene copolymer mixing, under 60 DEG C～75 DEG C of temperature conditionss, with the rotating speed of 150r/min～300r/min 1.5h is stirred
～2.5h, adds the oxa- butane of the mass parts, continues to stir 1h～2.5h with the rotating speed of 150r/min～300r/min,
Component A being uniformly mixed.
Further, the mass ratio of component A and component B is：1～1.5：1.
Another goal of the invention of the present invention, is to provide a kind of preparation technology of above-mentioned solvent-free compound PET/PE films,
Comprise the following steps：
Step S01, at room temperature, component B is added into component A, obtains mixture, is obtained without molten Jing after mixed at high speed
Agent binding agent；
Step S02, by PE resin Jing casting techniques substrate film is obtained；
Step S03, by PET resin drawn technique outer membrane is obtained；
Step S04, the solvent-free binding agent that step S01 is obtained is with 1.2g/m2～2g/m2Coating weight be coated on step
On substrate film obtained in S02, obtain tack coat, then by outer membrane obtained in step S03 pressure be 1.8MPa～
4.5MPa, temperature obtain laminated film semi-finished product to be composited with tack coat under conditions of 50 DEG C～65 DEG C；
Step S05, the laminated film semi-finished product that step S04 is obtained carry out maturation process at a temperature of 50 DEG C～55 DEG C
5h～10h, obtains final product the solvent-free compound PET/PE films.
Further, in step S01, mixed at high speed is specially：First by mixture with 200r/min～300r/min's
Rotating speed stir 20min～40min, then improve rotating speed to 3500r/min～6000r/min rotating speed stirring 30min～
60min, obtains final product solvent-free binding agent.
It is an advantage of the invention that：
1. the thickness of thin of the obtained solvent-free compound PET/PE films of the present invention, transparency height, peel strength are high, with good
Good packaging effect；
2. the present invention adopts cashew nut oil modified alkyd resin, ethylene-vinyl acetate copolymer, oxa- butane and aliphatic
Solvent-free binding agent bond effect that amine is combined preparation is good, solvent-free release, quick-drying effect is good, reduce Film laminated process
It is middle to dry the production cost for causing；
3. simple to operate, uncomplicated, the suitable plant layout metaplasia of preparation technology that the present invention is adopted is produced, and production is not received
Time, place limit, and can effectively reduce production cost.
Specific embodiment
Embodiments of the invention are described in detail below, but the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Embodiment 1
A kind of solvent-free compound PET/PE films, including outer layer, tack coat and basic unit；Wherein, tack coat side and outer layer
Bonding, opposite side bonds with basic unit；Outer layer is prepared from by PET resin；Basic unit is prepared from by PE resins；Tack coat is by without molten
Agent binding agent is prepared from；Solvent-free binding agent is composited by component A and component B；Component A includes following components：Cashew nut shell
30 parts of oil modified phenolic resin, 25 parts of ethylene-vinyl acetate copolymer, 1 part of oxa- butane；Component B includes following components：Diethyl
Alkene triamine, IPD.
Wherein, the thickness of outer layer is 1.8 μm；The thickness of basic unit is 1.2 μm；Acetic acid second in ethylene-vinyl acetate copolymer
The content of alkene is 60%；Diethylenetriamine, the mass ratio of IPD are 1：1；The preparation method of component A is：Will be described
The cashew nut oil modified alkyd resin of mass parts, ethylene-vinyl acetate copolymer mixing, under 60 DEG C of temperature conditionss, with
The rotating speed stirring 1.5h of 150r/min, adds the oxa- butane of the mass parts, continues to stir 1h with the rotating speed of 150r/min,
Component A being uniformly mixed；The mass ratio of component A and component B is 1：1.
Embodiment 2
A kind of solvent-free compound PET/PE films, including outer layer, tack coat and basic unit；Wherein, tack coat side and outer layer
Bonding, opposite side bonds with basic unit；Outer layer is prepared from by PET resin；Basic unit is prepared from by PE resins；Tack coat is by without molten
Agent binding agent is prepared from；Solvent-free binding agent is composited by component A and component B；Component A includes following components：Cashew nut shell
45 parts of oil modified phenolic resin, 40 parts of ethylene-vinyl acetate copolymer, 3 parts of oxa- butane；Component B includes following components：Ethene
Base triamine.
Wherein, the thickness of outer layer is 5 μm；The thickness of basic unit is 4 μm；Vinyl acetate in ethylene-vinyl acetate copolymer
Content is 80%；The preparation method of component A is：By the cashew nut oil modified alkyd resin of the mass parts, ethene-vinyl acetate
Copolymer mixes, and under 75 DEG C of temperature conditionss, with the rotating speed of 300r/min 2.5h is stirred, and adds the oxa- of the mass parts
Butane, continues to stir 2.5h, that is, component A being uniformly mixed with the rotating speed of 300r/min；The mass ratio of component A and component B
For 1.5：1.
Embodiment 3
A kind of solvent-free compound PET/PE films, including outer layer, tack coat and basic unit；Wherein, tack coat side and outer layer
Bonding, opposite side bonds with basic unit；Outer layer is prepared from by PET resin；Basic unit is prepared from by PE resins；Tack coat is by without molten
Agent binding agent is prepared from；Solvent-free binding agent is composited by component A and component B；Component A includes following components：Cashew nut shell
38 parts of oil modified phenolic resin, 32 parts of ethylene-vinyl acetate copolymer, 2 parts of oxa- butane；Component B includes following components：Diethyl
Amido propylamine.
Wherein, the thickness of outer layer is 3.5 μm；The thickness of basic unit is 2.1 μm；Acetic acid second in ethylene-vinyl acetate copolymer
The content of alkene is 70%；The preparation method of component A is：By the cashew nut oil modified alkyd resin of the mass parts, ethyl vinyl acetate
Ethylene copolymer mixes, and under 67 DEG C of temperature conditionss, with the rotating speed of 230r/min 2h is stirred, and adds the oxygen of the mass parts
Miscellaneous butane, continues to stir 1.8h, that is, component A being uniformly mixed with the rotating speed of 230r/min；The quality of component A and component B
Than for 1.2：1.
Embodiment 4
A kind of solvent-free compound PET/PE films, including outer layer, tack coat and basic unit；Wherein, tack coat side and outer layer
Bonding, opposite side bonds with basic unit；Outer layer is prepared from by PET resin；Basic unit is prepared from by PE resins；Tack coat is by without molten
Agent binding agent is prepared from；Solvent-free binding agent is composited by component A and component B；Component A includes following components：Cashew nut shell
35 parts of oil modified phenolic resin, 28 parts of ethylene-vinyl acetate copolymer, 1.5 parts of oxa- butane；Component B includes following components：Three
Methyl hexamethylene diamine.
Wherein, the thickness of outer layer is 2.5 μm；The thickness of basic unit is 1.5 μm；Acetic acid second in ethylene-vinyl acetate copolymer
The content of alkene is 65%；The preparation method of component A is：By the cashew nut oil modified alkyd resin of the mass parts, ethyl vinyl acetate
Ethylene copolymer mixes, and under 63 DEG C of temperature conditionss, with the rotating speed of 250r/min 1.8h is stirred, and adds the mass parts
Oxa- butane, continues to stir 2.2h, that is, component A being uniformly mixed with the rotating speed of 270r/min；The matter of component A and component B
Measuring ratio is：1.1：1.
Embodiment 5
A kind of solvent-free compound PET/PE films, including outer layer, tack coat and basic unit；Wherein, tack coat side and outer layer
Bonding, opposite side bonds with basic unit；Outer layer is prepared from by PET resin；Basic unit is prepared from by PE resins；Tack coat is by without molten
Agent binding agent is prepared from；Solvent-free binding agent is composited by component A and component B；Component A includes following components：Cashew nut shell
42 parts of oil modified phenolic resin, 38 parts of ethylene-vinyl acetate copolymer, 2.5 parts of oxa- butane；Component B includes following components：Second
Thiazolinyl triamine, trimethylhexamethylenediamine.
Wherein, the thickness of outer layer is 4.5 μm；The thickness of basic unit is 3.5 μm；Acetic acid second in ethylene-vinyl acetate copolymer
The content of alkene is 75%；Vinyl triamine, the mass ratio of trimethylhexamethylenediamine are 1：1；The preparation method of component A is：
The cashew nut oil modified alkyd resin of the mass parts, ethylene-vinyl acetate copolymer are mixed, in 72 DEG C of temperature conditionss
Under, 2.2h is stirred with the rotating speed of 200r/min, the oxa- butane of the mass parts is added, continuation is stirred with the rotating speed of 240r/min
1.6h is mixed, that is, component A being uniformly mixed；The mass ratio of component A and component B is 1.4：1.
Embodiment 6
A kind of preparation technology of solvent-free compound PET/PE films, comprises the following steps：
Step S01, at room temperature, component B is added into component A, mixture is obtained, first by mixture with 200r/
The rotating speed stirring 20min of min, then improves the rotating speed stirring 30min of rotating speed to 3500r/min, obtains final product solvent-free binding agent；
Step S02, by PE resin Jing casting techniques substrate film is obtained；
Step S03, by PET resin drawn technique outer membrane is obtained；
Step S04, the solvent-free binding agent that step S01 is obtained is with 1.2g/m2Coating weight be coated on step S02 be obtained
Substrate film on, obtain tack coat, then by outer membrane obtained in step S03 pressure be 1.8MPa, temperature be 50 DEG C
Under conditions of be composited with tack coat, obtain laminated film semi-finished product；
Step S05, the laminated film semi-finished product that step S04 is obtained carry out maturation process 5h at a temperature of 50 DEG C, i.e.,
Obtain the solvent-free compound PET/PE films.
Embodiment 7
A kind of preparation technology of solvent-free compound PET/PE films, comprises the following steps：
Step S01, at room temperature, component B is added into component A, mixture is obtained, first by mixture with 300r/
The rotating speed stirring 40min of min, then improves the rotating speed stirring 60min of rotating speed to 6000r/min, obtains final product solvent-free binding agent；
Step S02, by PE resin Jing casting techniques substrate film is obtained；
Step S03, by PET resin drawn technique outer membrane is obtained；
Step S04, the solvent-free binding agent that step S01 is obtained is with 2g/m2Coating weight be coated on obtained in step S02
On substrate film, obtain tack coat, then by outer membrane obtained in step S03 pressure be 4.5MPa, temperature be 65 DEG C
Under the conditions of be composited with tack coat, obtain laminated film semi-finished product；
Step S05, the laminated film semi-finished product that step S04 is obtained carry out maturation process 10h at a temperature of 55 DEG C, i.e.,
Obtain the solvent-free compound PET/PE films.
Embodiment 8
A kind of preparation technology of solvent-free compound PET/PE films, comprises the following steps：
Step S01, at room temperature, component B is added into component A, mixture is obtained, first by mixture with 250r/
The rotating speed stirring 30min of min, then improves the rotating speed stirring 45min of rotating speed to 4200r/min, obtains final product solvent-free binding agent；
Step S02, by PE resin Jing casting techniques substrate film is obtained；
Step S03, by PET resin drawn technique outer membrane is obtained；
Step S04, the solvent-free binding agent that step S01 is obtained is with 1.6g/m2Coating weight be coated on step S02 be obtained
Substrate film on, obtain tack coat, then by outer membrane obtained in step S03 pressure be 3.1MPa, temperature be 58 DEG C
Under conditions of be composited with tack coat, obtain laminated film semi-finished product；
Step S05, the laminated film semi-finished product that step S04 is obtained carry out maturation process 7h at a temperature of 52 DEG C, i.e.,
Obtain the solvent-free compound PET/PE films.
Experimental example
The performance of the solvent-free compound PET/PE film made to embodiment 1～8 is tested, the test result such as institute of table 1
Show.
The performance test results of the solvent-free compound PET/PE films of table 1
The preferred embodiments of the present invention are these are only, the present invention is not limited to, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of solvent-free compound PET/PE films, it is characterised in that including outer layer, tack coat and basic unit；Wherein, the bonding
Layer side and outer bound, opposite side bonds with basic unit；The outer layer is prepared from by PET resin；The basic unit is by PE resins
It is prepared from；The tack coat is prepared from by solvent-free binding agent；The solvent-free binding agent is combined by component A and component B
Form；Component A includes following components：Cashew nut oil modified alkyd resin, ethylene-vinyl acetate copolymer, oxa- butane；
Component B includes following components：Aliphatic amine.
2. solvent-free compound PET/PE films according to claim 1, it is characterised in that the thickness of the outer layer is 1.8 μ
M～5 μm.
3. solvent-free compound PET/PE films according to claim 1, it is characterised in that the thickness of the basic unit is 1.2 μ
M～4 μm.
4. solvent-free compound PET/PE films according to claim 1, it is characterised in that the ethene-vinyl acetate is total to
The content of vinyl acetate is in polymers：60%～80%.
5. solvent-free compound PET/PE films according to claim 1, it is characterised in that the aliphatic amine is preferred
For：It is arbitrary in diethylenetriamine, vinyl triamine, IPD, diethyl amino propylamine, trimethylhexamethylenediamine
Plant or any two.
6. solvent-free compound PET/PE films according to claim 1, it is characterised in that the quality of the Part A components
Part it is：30 parts～45 parts of cashew nut oil modified alkyd resin, 25 parts～40 parts of ethylene-vinyl acetate copolymer, 1 part of oxa- butane
～3 parts.
7. solvent-free compound PET/PE films according to claim 1, it is characterised in that the preparation method of component A
For：The cashew nut oil modified alkyd resin of the mass parts, ethylene-vinyl acetate copolymer are mixed, at 60 DEG C～75 DEG C
Under temperature conditionss, 1.5h～2.5h is stirred with the rotating speed of 150r/min～300r/min, add the oxa- fourth of the mass parts
Alkane, continues to stir 1h～2.5h, that is, component A being uniformly mixed with the rotating speed of 150r/min～300r/min.
8. solvent-free compound PET/PE films according to claim 1, it is characterised in that the matter of component A and component B
Measuring ratio is：1～1.5：1.
9. a kind of preparation technology of the solvent-free compound PET/PE films as any one of claim 1～8, its feature exists
In comprising the following steps：
Step S01, at room temperature, component B is added into component A, obtains mixture, obtains solvent-free viscous Jing after mixed at high speed
Knot agent；
Step S02, by PE resin Jing casting techniques substrate film is obtained；
Step S03, by PET resin drawn technique outer membrane is obtained；
Step S04, the solvent-free binding agent that step S01 is obtained is with 1.2g/m2～2g/m2Coating weight be coated on step S02 system
Substrate film on, obtain tack coat, then by outer membrane obtained in step S03 pressure be 1.8MPa～4.5MPa,
Temperature obtains laminated film semi-finished product to be composited with tack coat under conditions of 50 DEG C～65 DEG C；
Step S05, the laminated film semi-finished product that step S04 is obtained carry out at a temperature of 50 DEG C～55 DEG C maturation process 5h～
10h, obtains final product the solvent-free compound PET/PE films.
10. preparation technology according to claim 9, it is characterised in that in step S01, the mixed at high speed is specially：It is first
First mixture is stirred into 20min～40min with the rotating speed of 200r/min～300r/min, then improve rotating speed to 3500r/min
The rotating speed stirring 30min～60min of～6000r/min, obtains final product solvent-free binding agent.
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| CN107584772A (en) * | 2017-09-14 | 2018-01-16 | 四川汇利实业有限公司 | A kind of solvent-free combination process for composite membrane for packaging medicine |
| CN109849482A (en) * | 2019-01-02 | 2019-06-07 | 鲁泰纺织股份有限公司 | It is a kind of to serve as a contrast elastic fabric production method again |
| CN109943250A (en) * | 2019-03-29 | 2019-06-28 | 浙江欧仁新材料有限公司 | The anti-residue glue silicone protective film of processing procedure |
| CN111730941A (en) * | 2020-06-08 | 2020-10-02 | 安徽兴中新材料股份有限公司 | Flame-retardant PE film and preparation method thereof |
| CN113002092A (en) * | 2021-03-10 | 2021-06-22 | 淄博中南医药包装材料股份有限公司 | PET/PE composite sheet for encapsulating nucleic acid detection reagent and preparation method thereof |
| CN114437639A (en) * | 2022-02-28 | 2022-05-06 | 上海春宜药品包装材料有限公司 | Composite PET/PE film and preparation method thereof |
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| CN114437639A (en) * | 2022-02-28 | 2022-05-06 | 上海春宜药品包装材料有限公司 | Composite PET/PE film and preparation method thereof |
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