CN104890333B - Plastic film with layering control function and preparation method thereof - Google Patents
Plastic film with layering control function and preparation method thereof Download PDFInfo
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- CN104890333B CN104890333B CN201510325337.4A CN201510325337A CN104890333B CN 104890333 B CN104890333 B CN 104890333B CN 201510325337 A CN201510325337 A CN 201510325337A CN 104890333 B CN104890333 B CN 104890333B
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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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0869—Acids or derivatives thereof
- C08L23/0876—Neutralised polymers, i.e. ionomers
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Polymers & Plastics (AREA)
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- Laminated Bodies (AREA)
Abstract
The invention relates to a plastic film with a layering control function and a preparation method thereof. The plastic film comprises a bonding layer, an easy-to-tear layer and a stripping layer, wherein the bonding layer is prepared from ethylene-acrylic acid copolymer or ethylene-methacrylic acid copolymer; the easy-to-tear layer is prepared from a blend formed by mixing ethylene-vinyl acetate copolymer, ethylene-methacrylic acid ionic polymer, poly-1-butene, silicon dioxide, beta-propionic acid octade, triphenyl phosphite, N,N'-ethylenebisoctadecanamide, 2,6-Di-tert-butyl-4-methylphenol, oleamide, triphenyl phosphate and oleyl palmitamide according to a certain weight ratio; the stripping layer is prepared from a blend formed by mixing ethylene-vinyl acetate copolymer, low-density polyethylene and a linear low-density polyethylene resin material according to a certain weight ratio. The plastic film with the layering control function ensures that an external sheath layer of an optical cable or an electric cable can be disengaged from the bonding layer and also ensures that a metal-plastic composite belt is free of moisture invasion.
Description
Technical field
The present invention relates to a kind of communication material, more particularly, to a kind of plastic sheeting for making optical cable or cable shield
And preparation method thereof, belong to communication Material Field.
Background technology
The structure of optical cable totally can be divided into cable core, screen layer (that is, metal plastic composite strip layer), restrictive coating three parts.Its
In, cable core is the effect of transmission signal；Screen layer uses metal plastic composite strip material, and indulging bag by metal plastic composite strip will
Cable core is closely wrapped up, airtight.It has been shielding, armouring, anti-corrosion, moistureproof effect；Restrictive coating is using being a kind of vinyon
Material, after certain temperature is melted, is closely glued with the plastics on metal plastic composite strip surface by way of extrusion
Tie together, be not easily stripped out, play anticorrosion, protection against the tide, the protective effect of anti-external world.
Application in the communication material such as fiber optic cable for the metal plastic composite strip is widely.The main material of metal plastic composite strip
Material is made up of metal level and plastic film layers.And the plastic film layers that current metal plastic composite strip uses mostly use
Ethylene acrylic acid co polymer resin, ethylene methacrylic acid copolymer resin, ethylene vinyl acetate copolymerization
Thing, Low Density Polyethylene and linear low density polyethylene resin, are formed through the blowing of three-layer co-extruded technique by certain weight proportion
's.This three layers melt is in outflow in circular die mouth as monofilm after lamination in die cavity, because this several plastics is former
The thermoplasticity of material and melting are fabulous, so after they flow out die cavity in extrusion, bond between layers is just quite firm,
Plastic sheeting just cannot be made to form the effect of layering.
And communications optical cable cable needs connecting and torsional buckling of manpower or pulling equipment when construction sets up, in order to avoid construction
The situation damaging optical fiber such as pull, sprain during erection, not affecting the transmission of optical fiber or the quality of receipt signal, make
After fiber optic cable, need to do torsional buckling experiment it may be assumed that cable core can be closely bundled together with metal plastic composite strip, and external sheath layer
Depart from from metal plastic composite strip completely and be divided into two parts.Its experimentation is: by the one of the fiber optic cable of the 500mm taking length
End is fixed on the fixed support of torsional buckling experimental machine, after the other end removes the long external sheath layer of 50mm, is fixed in experimental machine left
On the support of right rotation, open experimental machine and carry out left and right rotation torsional buckling more than 300 times, external sheath layer and cable core and screen layer repeatedly
Entirety completely disengage from, and the entirety of cable core and screen layer is not destroyed.In addition, communications optical cable cable, when construction sets up, is
Need to carry out length connection.And use the metal plastic composite strip of existing this plastic sheeting making, when construction sets up by
Between external sheath layer and metal plastic composite strip, bonding is quite firm, is difficult to peel off restrictive coating from metal plastic composite strip go
Fall, have impact on the progress when construction sets up for the fiber optic cable completely, meanwhile, also cause the materials such as the cable core of fiber optic cable can not be by
Recycling causes to waste.
Content of the invention
The present invention is directed to deficiency present in the plastic sheeting use of existing metal plastic composite strip, provides a kind of controllable point
Plastic sheeting of layer and preparation method thereof.
The technical scheme is that
A kind of plastic sheeting of controllable layering, including adhered layer, easily tears layer and peel ply it is characterised in that described glue
Paste layer is made up of ethylene-acrylic acid copolymer or ethylene-methacrylic acid copolymer, and the described layer that easily tears is contained by vinyl acetate quality
Amount less than 20% ethylene-vinyl acetate copolymer, ethylene-methyl methacrylate ionomer, poly 1-butene, titanium dioxide
Silicon, β-propanoic acid octadecyl, three phenyl-phosphites, n, n '-ethylene bis stearamide, 2,6- di-tert-butyl-4-methy phenol, oil
The blend that sour amide, triphenyl phosphate, oleyl palimitamide are mixed to form according to a certain weight ratio is made, described peel ply by
Vinyl acetate mass content be less than 20% ethylene-vinyl acetate copolymer, Low Density Polyethylene, linear low density polyethylene
The blend that resin material is mixed to form according to a certain weight ratio is made.
The invention has the beneficial effects as follows: the plastic sheeting of the controllable layering of present configuration is making the screen of fiber optic cable
After covering layer composite band, adhered layer can securely be combined on the surface of the metal level pasting metal plastic composite strip, and optical cable is electric
The external sheath layer of cable also can be together with the peel ply tight bond of the plastic sheeting of controllable layering, by easily tearing layer with it not
Mutually melt the effect repelled, the external sheath layer of fiber optic cable can be easy to be separated from adhered layer, and do not destroy adhered layer it is ensured that
Metal plastic composite strip is not invaded by moisture, has good moisture-proof role；In the case that screen layer is not damaged, thus protecting
Protect cable core.In addition, the recycle value of cable core can be improved and can improve the progress in erection construction for the fiber optic cable.
The principle of the present invention is as follows:
Adhered layer requires higher with the adhesion strength of the metal level of metal plastic composite strip, because the second that adhered layer is used
Relatively low (the fusing point: 70 of fusing point of alkene acrylic copolymer (eaa) or ethylene methacrylic acid copolymer resin (emaa)
DEG C～90 DEG C), thermoplasticity is good, fusing time short it is easy to the metal level of metal plastic composite strip bond firm.Peel ply requires
With the external sheath layer tight bond of fiber optic cable because the ethylene vinyl acetate copolymer that used of peel ply and low close
Degree polyethylene and the fusing point relatively low (fusing point: 90 DEG C～120 DEG C) of linear low density polyethylene, the external sheath layer of fiber optic cable
At 100 DEG C～120 DEG C, fusing point is close to fusing point, and the jacket material of these plastic raw materialss and fiber optic cable is in chemistry
Great similarity and affinity are had on composition it is easy to be fused together, therefore, bonding is also very firm.Easily tear layer to be used
Ethylene vinyl acetate copolymer (eva), ethylene methacrylic acid ionomer (surlyn), poly- 1 fourth
Alkene (pb 1), β-propanoic acid octadecyl, oleyl palimitamide, 2,6 di tert butyl 4 methyl phenol, silicon dioxide, tricresyl phosphate
Phenyl ester, three phenyl-phosphites, n, n'- ethylene bis stearamide (ebs wax) material, chemically on composition with adhered layer and peel ply
The melting of material therefor is poor, has the effect mutually repelled it may be assumed that serving the effect of obstruct.The melt of this trilamellar membrane squeezes simultaneously
When going out, flow out in circular die mouth as lamination after image monofilm in die cavity, adopt the particularity of material due to easily tearing layer,
Cause the bonding strength between adhered layer and peel ply relatively low, cannot securely be bonded together very much, so as to by peel ply
Cut separation with adhered layer, and mutually do not destroy.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the described weight proportion easily tearing each component in layer is as follows: vinyl acetate mass content is less than 20% second
Alkene-vinyl acetate co-polymer: 35～38%, ethylene-methyl methacrylate ionomer: 45～48%, poly 1-butene: 18～
20%, silicon dioxide: 0.4～0.5%, β-propanoic acid octadecyl: 0.1～0.2%, three phenyl-phosphites: 0.1～0.2%, n,
N '-ethylene bis stearamide: 0.1～0.2%, 2,6- di-tert-butyl-4-methy phenols: 0.1～0.2%, oleamide: 0.1
～0.2%, triphenyl phosphate: 0.2～0.3%, oleyl palimitamide: 0.1～0.2%, the weight proportion of above-mentioned each component it
With for 100%.
Further, in described peel ply, the weight proportion of each component is as follows: vinyl acetate content is less than 20% ethylene-vinegar
Vinyl acetate copolymer: 10%, Low Density Polyethylene: 45%, linear low density polyethylene: 45%.
Further, in described plastic sheeting, the part by weight of each layer is as follows: adhered layer: 30～40%, easily tear layer: 15～
30%, peel ply: 35～45%.
Further, the thickness of described adhered layer be 0.014～0.036mm, described easily tear thickness degree be 0.008～
0.024mm, described peel ply thickness is 0.016～0.040mm.
The present invention also provides a kind of method of the plastic sheeting preparing controllable layering, comprises the steps:
(1) the screw rod area of three groups of extruders and rotating mould area are preheated in advance, make the temperature in screw rod area reach 140
± 10 DEG C, the temperature in rotating mould area reaches 170 ± 10 DEG C；
(2) by the adhered layer of ethylene-acrylic acid copolymer or ethylene-methacrylic acid copolymer composition and by acetic acid second
Alkene mass content be less than 20% ethylene-vinyl acetate copolymer, ethylene-methyl methacrylate ionomer, poly 1-butene,
Silicon dioxide, β-propanoic acid octadecyl, three phenyl-phosphites, n, n '-ethylene bis stearamide, 2,6- di-t-butyl -4- methyl
What phenol, oleamide, triphenyl phosphate, oleyl palimitamide were mixed to form according to a certain weight ratio easily tears layer and vinyl acetate
Mass content be less than 20% ethylene-vinyl acetate copolymer, Low Density Polyethylene, linear low density polyethylene resin material
The peel ply being mixed to form according to a certain weight ratio stirs standby in advance；
(3) adhered layer raw material is added to the hopper of rotating mould outermost layer feed cavity, easily torn a layer raw material add to
In the hopper of rotating mould intermediate layer feed cavity, peel ply raw material is added to the hopper of rotating mould innermost layer feed cavity,
Thickness according to needed for three layers of difference, the size of adjustment rotating mould mouth interval, start three groups of extruders and each coiling machine and auxiliary
Help equipment, by adjusting the rotating speed of each extruder motor, drive screw rod to form certain pressure, three layers of melt is in die cavity internal layer
Form monofilm after conjunction and be cylindrical in shape and flow out in mould mouth；
(4) thin film extruded passes through the wind-force of hair-dryer by tubular film inflation, and by the rotation adjustment of rotating mould
The uniformity of film thickness, then drives thin film to run by the pulling force of traction machine, is finally batched by coiling machine point both sides.
The invention has the beneficial effects as follows: the method for the present invention is workable, and mature technology is reliable and stable, produces system
The Plastic film surface of the controllable layering made is smooth, smooth, uniform, the defect such as free from admixture, no wrinkle；End face is neat, no stick up
Side, no breach etc..
Further, the weight proportion easily tearing each component in layer described in step (2) is as follows: vinyl acetate mass content is less than
20% ethylene-vinyl acetate copolymer: 35～38%, ethylene-methyl methacrylate ionomer: 45～48%, poly- 1-
Butylene: 18～20%, silicon dioxide: 0.4～0.5%, β-propanoic acid octadecyl: 0.1～0.2%, three phenyl-phosphites: 0.1
～0.2%, n, n '-ethylene bis stearamide: 0.1～0.2%, 2,6- di-tert-butyl-4-methy phenols: 0.1～0.2%, oil
Sour amide: 0.1～0.2%, triphenyl phosphate: 0.2～0.3%, oleyl palimitamide: 0.1～0.2%, above-mentioned each component
Weight proportion sum is 100%.
Further, in peel ply described in step (2), the weight proportion of each component is as follows: vinyl acetate content is less than 20%
Ethylene-vinyl acetate copolymer: 10%, Low Density Polyethylene: 45%, linear low density polyethylene: 45%.
Further, adhered layer described in step (2), easily tear layer and the part by weight of peel ply is as follows: adhered layer: 30～
40%, easily tear layer: 15～30%, peel ply: 35～45%.
Further, the thickness of adhered layer described in step (3) is 0.014～0.036mm, and the described thickness degree that easily tears is
0.008～0.024mm, described peel ply thickness is 0.016～0.040mm.
Brief description
Fig. 1 is plastic sheeting three-decker schematic diagram of the present invention；
Specific embodiment
Below in conjunction with example, the principle of the present invention and feature are described, example is served only for explaining the present invention, and
Non- for limiting the scope of the present invention.
Embodiment 1:
A kind of plastic sheeting of controllable layering, including adhered layer, easily tears layer and peel ply, adhered layer thickness is
0.028mm, easily tearing thickness degree is 0.008mm, and peel ply thickness is 0.040mm, and the part by weight of each layer is: adhered layer: 30%,
Easily tear layer: 30%, peel ply: 40%, adhered layer is made up of ethylene-acrylic acid copolymer, easily tears layer former by following weight portion
Material is made: the ethylene-vinyl acetate copolymer less than 5% for the vinyl acetate content: 35%, ethylene-methyl methacrylate ion gathers
Compound: 45%, poly 1-butene: 18%, silicon dioxide: 0.5%, β-propanoic acid octadecyl: 0.2%, three phenyl-phosphites:
0.2%, n, n '-ethylene bis stearamide: 0.2%, 2,6- di-tert-butyl-4-methy phenols: 0.2%, oleamide: 0.2%,
Triphenyl phosphate: 0.3%, oleyl palimitamide: 0.2%, peel ply is made up of the raw material of following weight portion: vinyl acetate content
Ethylene-vinyl acetate copolymer for 5-20%: 10%, Low Density Polyethylene: 45%, linear low density polyethylene: 45%.
Above-mentioned plastic sheeting is made through following methods and is formed:
(1) the screw rod area of three groups of extruders and rotating mould area are preheated in advance, make the temperature in screw rod area reach 140
± 10 DEG C, the temperature in rotating mould area reaches 170 ± 10 DEG C；
(2) adhered layer that aforementioned proportion and raw material mixed, easily tear layer and peel ply raw material and paste according to gross weight
Layer: 30%, easily tear layer: 30%, peel ply: 40% ratio stirs standby；
(3) adhered layer raw material is added to the hopper of rotating mould outermost layer feed cavity, easily torn a layer raw material add to
In the hopper of rotating mould intermediate layer feed cavity, peel ply raw material is added to the hopper of rotating mould innermost layer feed cavity,
Thickness according to needed for three layers of difference, the size of adjustment rotating mould mouth interval, start three groups of extruders and each coiling machine and auxiliary
Help equipment, by adjusting the rotating speed of each extruder motor, drive screw rod to form certain pressure, three layers of melt is in die cavity internal layer
Form monofilm after conjunction and be cylindrical in shape and flow out in mould mouth；
(4) thin film extruded passes through the wind-force of hair-dryer by tubular film inflation, and by the rotation adjustment of rotating mould
The uniformity of film thickness, then drives thin film to run by the pulling force of traction machine, is finally batched by coiling machine point both sides.
Embodiment 2:
A kind of plastic sheeting of controllable layering, including adhered layer, easily tears layer and peel ply, adhered layer thickness is
0.014mm, easily tearing thickness degree is 0.012mm, and peel ply thickness is 0.016mm, and the part by weight of each layer is: adhered layer: 35%,
Easily tear layer: 25%, peel ply: 35%, the ethylene-methacrylic acid copolymer system that adhered layer is 9% by methacrylic acid content
Become, easily tear layer and be made up of the raw material of following weight portion: vinyl acetate content is the ethylene-vinyl acetate copolymer of 5-20%:
38%, ethylene-methyl methacrylate ionomer: 48%, poly 1-butene: 20%, silicon dioxide: 0.4%, β-propanoic acid octadecanol
Ester: 0.1%, three phenyl-phosphites: 0.1%, n, n '-ethylene bis stearamide: 0.2%, 2,6- di-t-butyl -4- methylbenzene
Phenol: 0.1%, oleamide: 0.2%, triphenyl phosphate: 0.2%, oleyl palimitamide: 0.1%, peel ply is by following weight
The raw material of part is made: vinyl acetate content is the ethylene-vinyl acetate copolymer of 5-20%: 10%, Low Density Polyethylene:
45%, linear low density polyethylene: 45%.
Above-mentioned plastic sheeting is made through following methods and is formed:
(1) the screw rod area of three groups of extruders and rotating mould area are preheated in advance, make the temperature in screw rod area reach 140
± 10 DEG C, the temperature in rotating mould area reaches 170 ± 10 DEG C；
(2) adhered layer that aforementioned proportion and raw material mixed, easily tear layer and peel ply raw material and paste according to gross weight
Layer: 40%, easily tear layer: 25%, peel ply: 35% ratio stirs standby；
(3) adhered layer raw material is added to the hopper of rotating mould outermost layer feed cavity, easily torn a layer raw material add to
In the hopper of rotating mould intermediate layer feed cavity, peel ply raw material is added to the hopper of rotating mould innermost layer feed cavity,
Thickness according to needed for three layers of difference, the size of adjustment rotating mould mouth interval, start three groups of extruders and each coiling machine and auxiliary
Help equipment, by adjusting the rotating speed of each extruder motor, drive screw rod to form certain pressure, three layers of melt is in die cavity internal layer
Form monofilm after conjunction and be cylindrical in shape and flow out in mould mouth；
(4) thin film extruded passes through the wind-force of hair-dryer by tubular film inflation, and by the rotation adjustment of rotating mould
The uniformity of film thickness, then drives thin film to run by the pulling force of traction machine, is finally batched by coiling machine point both sides.
Embodiment 3:
A kind of plastic sheeting of controllable layering, including adhered layer, easily tears layer and peel ply, adhered layer thickness is
0.036mm, easily tearing thickness degree is 0.024mm, and peel ply thickness is 0.025mm, and the part by weight of each layer is: adhered layer: 40%,
Easily tear layer: 15%, peel ply: 45%, the ethylene-methacrylic acid copolymer system that adhered layer is 4% by methacrylic acid content
Become, easily tear layer and be made up of the raw material of following weight portion: the ethylene-vinyl acetate copolymer less than 5% for the vinyl acetate content:
36%, ethylene-methyl methacrylate ionomer: 47%, poly 1-butene: 18%, silicon dioxide: 0.4%, β-propanoic acid octadecanol
Ester: 0.1%, three phenyl-phosphites: 0.1%, n, n '-ethylene bis stearamide: 0.2%, 2,6- di-t-butyl -4- methylbenzene
Phenol: 0.1%, oleamide: 0.2%, triphenyl phosphate: 0.1%, oleyl palimitamide: 0.1%, peel ply is by following weight
The raw material of part is made: the ethylene-vinyl acetate copolymer less than 5% for the vinyl acetate content: 10%, Low Density Polyethylene:
45%, linear low density polyethylene: 45%.
Above-mentioned plastic sheeting is made through following methods and is formed:
(1) the screw rod area of three groups of extruders and rotating mould area are preheated in advance, make the temperature in screw rod area reach 140
± 10 DEG C, the temperature in rotating mould area reaches 170 ± 10 DEG C；
(2) adhered layer that aforementioned proportion and raw material mixed, easily tear layer and peel ply raw material and paste according to gross weight
Layer: 40%, easily tear layer: 15%, peel ply: 45% ratio stirs standby；
(3) adhered layer raw material is added to the hopper of rotating mould outermost layer feed cavity, easily torn a layer raw material add to
In the hopper of rotating mould intermediate layer feed cavity, peel ply raw material is added to the hopper of rotating mould innermost layer feed cavity,
Thickness according to needed for three layers of difference, the size of adjustment rotating mould mouth interval, start three groups of extruders and each coiling machine and auxiliary
Help equipment, by adjusting the rotating speed of each extruder motor, drive screw rod to form certain pressure, three layers of melt is in die cavity internal layer
Form monofilm after conjunction and be cylindrical in shape and flow out in mould mouth；
(4) thin film extruded passes through the wind-force of hair-dryer by tubular film inflation, and by the rotation adjustment of rotating mould
The uniformity of film thickness, then drives thin film to run by the pulling force of traction machine, is finally batched by coiling machine point both sides.
Embodiment 4:
A kind of plastic sheeting of controllable layering, including adhered layer, easily tears layer and peel ply, adhered layer thickness is
0.020mm, easily tearing thickness degree is 0.018mm, and peel ply thickness is 0.032mm, and the part by weight of each layer is: adhered layer: 38%,
Easily tear layer: 20%, peel ply: 42%, adhered layer is made up of 12% methyl-propen acid copolymer of methacrylic acid content,
Easily tear layer to be made up of the raw material of following weight portion: vinyl acetate content is the ethylene-vinyl acetate copolymer of 5-20%:
30%, ethylene-methyl methacrylate ionomer: 48%, poly 1-butene: 20%, silicon dioxide: 0.5%, β-propanoic acid octadecanol
Ester: 0.2%, three phenyl-phosphites: 0.2%, n, n '-ethylene bis stearamide: 0.2%, 2,6- di-t-butyl -4- methylbenzene
Phenol: 0.2%, oleamide: 0.2%, triphenyl phosphate: 0.3%, oleyl palimitamide: 0.2%, peel ply is by following weight
The raw material of part is made: the ethylene-vinyl acetate copolymer less than 5% for the vinyl acetate content: 10%, Low Density Polyethylene:
45%, linear low density polyethylene: 45%.
Above-mentioned plastic sheeting is made through following methods and is formed:
(1) the screw rod area of three groups of extruders and rotating mould area are preheated in advance, make the temperature in screw rod area reach 140
± 10 DEG C, the temperature in rotating mould area reaches 170 ± 10 DEG C；
(2) adhered layer that aforementioned proportion and raw material mixed, easily tear layer and peel ply raw material and paste according to gross weight
Layer: 38%, easily tear layer: 20%, peel ply: 42% ratio stirs standby；
(3) adhered layer raw material is added to the hopper of rotating mould outermost layer feed cavity, easily torn a layer raw material add to
In the hopper of rotating mould intermediate layer feed cavity, peel ply raw material is added to the hopper of rotating mould innermost layer feed cavity,
Thickness according to needed for three layers of difference, the size of adjustment rotating mould mouth interval, start three groups of extruders and each coiling machine and auxiliary
Help equipment, by adjusting the rotating speed of each extruder motor, drive screw rod to form certain pressure, three layers of melt is in die cavity internal layer
Form monofilm after conjunction and be cylindrical in shape and flow out in mould mouth；
(4) thin film extruded passes through the wind-force of hair-dryer by tubular film inflation, and by the rotation adjustment of rotating mould
The uniformity of film thickness, then drives thin film to run by the pulling force of traction machine, is finally batched by coiling machine point both sides.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the protection domain of invention.
Claims (10)
1. a kind of plastic sheeting of controllable layering, including adhered layer, easily tears layer and peel ply it is characterised in that described stickup
Layer is made up of ethylene-acrylic acid copolymer or ethylene-methacrylic acid copolymer, and the described layer that easily tears is by vinyl acetate mass content
Ethylene-vinyl acetate copolymer less than 20%, ethylene-methyl methacrylate ionomer, poly 1-butene, silicon dioxide,
β-propanoic acid octadecyl, three phenyl-phosphites, n, n '-ethylene bis stearamide, 2,6- di-tert-butyl-4-methy phenol, Oleic acid
The blend that amide, triphenyl phosphate, oleyl palimitamide are mixed to form according to a certain weight ratio is made, and described peel ply is by vinegar
Sour Ethylene mass content be less than 20% ethylene-vinyl acetate copolymer, Low Density Polyethylene, linear low density polyethylene tree
The blend that fat material is mixed to form according to a certain weight ratio is made.
2. a kind of plastic sheeting of controllable layering according to claim 1 is it is characterised in that described easily tear each group in layer
The weight proportion dividing is as follows: the ethylene-vinyl acetate copolymer less than 20% for the vinyl acetate content: 35～38%, ethylene-first
Base acrylic acid ionomers: 45～48%, poly 1-butene: 18～20%, silicon dioxide: 0.4～0.5%, β-propanoic acid 18
Alcohol ester: 0.1～0.2%, three phenyl-phosphites: 0.1～0.2%, n, n '-ethylene bis stearamide: 0.1～0.2%, 2,6- bis-
Tert-butyl-4-methyl-Phenol: 0.1～0.2%, oleamide: 0.1～0.2%, triphenyl phosphate: 0.2～0.3%, oil base palm fibre
Palmitic acid amide: 0.1～0.2%, the weight proportion sum of above-mentioned each component is 100%.
3. a kind of plastic sheeting of controllable layering according to claim 1 is it is characterised in that each group in described peel ply
The weight proportion dividing is as follows: the ethylene-vinyl acetate copolymer less than 20% for the vinyl acetate content: 10%, low density polyethylene
Alkene: 45%, linear low density polyethylene: 45%.
4. the plastic sheeting of the controllable layering according to claim 1 is it is characterised in that each layer in described plastic sheeting
Part by weight as follows: adhered layer: 30～40%, easily tear layer: 15～30%, peel ply: 35～45%.
5. the plastic sheeting of a kind of controllable layering according to any one of claim 1-4 is it is characterised in that described glue
The thickness of paste layer is 0.014～0.036mm, and the described thickness degree that easily tears is 0.008～0.024mm, and described peel ply thickness is
0.016～0.040mm.
6. a kind of method of the plastic sheeting preparing controllable layering, comprises the steps:
(1) the screw rod area of three groups of extruders and rotating mould area are preheated in advance, make the temperature in screw rod area reach 140 ± 10
DEG C, the temperature in rotating mould area reaches 170 ± 10 DEG C；
(2) by the adhered layer of ethylene-acrylic acid copolymer or ethylene-methacrylic acid copolymer composition and by vinyl acetate matter
Measure the ethylene-vinyl acetate copolymer that content is less than 20%, ethylene-methyl methacrylate ionomer, poly 1-butene, dioxy
SiClx, β-propanoic acid octadecyl, three phenyl-phosphites, n, n '-ethylene bis stearamide, 2,6- di-tert-butyl-4-methy phenol,
What oleamide, triphenyl phosphate, oleyl palimitamide were mixed to form according to a certain weight ratio easily tears layer and ethene-vinyl acetate
The peel ply that ester copolymer, Low Density Polyethylene, linear low density polyethylene resin material are mixed to form according to a certain weight ratio
Stir in advance standby；
(3) adhered layer raw material is added to the hopper of rotating mould outermost layer feed cavity, easily torn a layer raw material and add to rotation
In the hopper of mould intermediate layer feed cavity, peel ply raw material is added to the hopper of rotating mould innermost layer feed cavity, according to
Thickness needed for three layers of difference, the size of adjustment rotating mould mouth interval, starts three groups of extruders and each coiling machine and auxiliary sets
Standby, by adjusting the rotating speed of each extruder motor, drive screw rod to form certain pressure, three layers of melt is after lamination in die cavity
Form monofilm and be cylindrical in shape and flow out in mould mouth；
(4) thin film extruded passes through the wind-force of hair-dryer by tubular film inflation, and adjusts thin film by the rotation of rotating mould
The uniformity of thickness, then drives thin film to run by the pulling force of traction machine, is finally batched by coiling machine point both sides.
7. a kind of method of plastic sheeting preparing controllable layering according to claim 6 is it is characterised in that step
(2) weight proportion easily tearing each component in layer described in is as follows: the ethylene-vinyl acetate that vinyl acetate content is less than 20% is common
Polymers: 35～38%, ethylene-methyl methacrylate ionomer: 45～48%, poly 1-butene: 18～20%, silicon dioxide:
0.4～0.5%, β-propanoic acid octadecyl: 0.1～0.2%, three phenyl-phosphites: the double Hard Fat of 0.1～0.2%, n, n '-ethylene
Amide: 0.1～0.2%, 2,6- di-tert-butyl-4-methy phenols: 0.1～0.2%, oleamide: 0.1～0.2%, tricresyl phosphate
Phenyl ester: 0.2～0.3%, oleyl palimitamide: 0.1～0.2%, the weight proportion sum of above-mentioned each component is 100%.
8. a kind of method of plastic sheeting preparing controllable layering according to claim 6 is it is characterised in that step
(2) in peel ply described in, the weight proportion of each component is as follows: the ethylene-vinyl acetate that vinyl acetate content is less than 20% is common
Polymers: 10%, Low Density Polyethylene: 45%, linear low density polyethylene: 45%.
9. a kind of method of plastic sheeting preparing controllable layering according to claim 6 is it is characterised in that step
(2) adhered layer described in, easily tear layer and the part by weight of peel ply is as follows: adhered layer: 30～40%, easily tear layer: 15～30%,
Peel ply: 35～45%.
10. the method for a kind of plastic sheeting preparing controllable layering according to any one of claim 6-9, its feature
Be, the thickness of adhered layer described in step (3) be 0.014～0.036mm, described easily tear thickness degree be 0.008～
0.024mm, described peel ply thickness is 0.016～0.040mm.
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| CN113263849B (en) * | 2021-06-08 | 2022-07-22 | 广东恒利新包装材料有限公司 | Cigarette anti-counterfeiting holographic two-dimensional code electrochemical aluminum and preparation method thereof |
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| CA1180654A (en) * | 1981-01-19 | 1985-01-08 | Richard H. Brezinsky | Plastic/metal laminates, cable shielding or armoring tapes, and electrical cables made therewith |
| GB8432608D0 (en) * | 1984-12-22 | 1985-02-06 | Bp Chem Int Ltd | Strippable laminate |
| CN1032796C (en) * | 1991-12-18 | 1996-09-18 | 青岛塑料八厂 | Laminated plastics-metal band and manufacture thereof |
| CN101987522B (en) * | 2009-08-06 | 2013-01-30 | 烟台万泰通信科技有限公司 | Double-layer plastic film composite tape and manufacturing method thereof |
| CN102774076B (en) * | 2012-07-20 | 2015-08-19 | 烟台万泰通信科技有限公司 | A kind of plastic sheeting can the composite band of delamination |
| CN102825877B (en) * | 2012-09-13 | 2015-01-14 | 光明乳业股份有限公司 | Multi-layer plastic composite isolating sheet and production process thereof |
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Denomination of invention: Plastic film with layering control function and preparation method thereof Effective date of registration: 20180115 Granted publication date: 20170118 Pledgee: Limited by Share Ltd, Yantai, the Pearl River Village Bank of fukushan Pledgor: Yantai Mentex Communication Technology Co., Ltd. Registration number: 2018370000012 |