CN106346925B - A kind of modified nylon 6 polypropylene composite materials release film and its processing method - Google Patents

A kind of modified nylon 6 polypropylene composite materials release film and its processing method Download PDF

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CN106346925B
CN106346925B CN201610722974.XA CN201610722974A CN106346925B CN 106346925 B CN106346925 B CN 106346925B CN 201610722974 A CN201610722974 A CN 201610722974A CN 106346925 B CN106346925 B CN 106346925B
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polypropylene
modified nylon
chromatograph
layer
nylon
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CN106346925A (en
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易向阳
苏醒
欧发刚
刘祥
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UPASS MATERIAL TECHNOLOGY (SHANGHAI) Co Ltd
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UPASS MATERIAL TECHNOLOGY (SHANGHAI) Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—Copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • 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
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The present invention provides a kind of modified nylon 6 polypropylene composite materials release films, including five-layer co-squeezing layer structure, the five-layer co-squeezing layer structure is followed successively by the first surface layer, the second toughening and matches chromatograph with chromatograph and the 5th printing with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th toughening；Wherein, the third modified nylon 6 polypropylene enhancing barrier layer includes modified nylon 6 polypropylene.The modified nylon 6 polypropylene composite materials release film has the advantages that tensile strength Da≤30Mpa, elongation percentage >=500%；Under the conditions of 170 DEG C, 5min, applies and do not scald film on pitch, shrinking percentage≤2% is indeformable, not alice；Coloured solvent naphtha in effective barrier coiled material makes to shine 3 months outside film, not change colour because of permeability；Silicon transfer is few, can guarantee the initial bonding strength of pitch.

Description

A kind of modified nylon 6 polypropylene composite materials release film and its processing method
Technical field
The present invention relates to gluing industry more particularly to a kind of modified nylon 6 polypropylene composite materials release film and its processing methods.
Background technique
In gluing industry, such as in waterproofing membrane production, commonly uses polyethylene hydrocarbon PE, polypropylene (PP) or polyester (PET) and make For separated type material.Wherein, polythene material intensity is low, and heat resistance is inadequate, and barrier property is poor；Virgin pp inprocess shrinkage is big；And Though PET material heat resistance and intensity are good, fracture elongation is low, produce coiled material when and pitch shrink it is inconsistent, cause coiled material The problems such as playing drum, and PET material crystallinity is high, and manufactured film brittleness is big, is easy to tear in coiled material construction rotten.
Specifically, melting temperature≤135 DEG C of polyethylene, it is domestic to be processed in gluing industry, such as coiled material manufacturer pitch Temperature uses polyethylene as separated type material, easily causes boiling hot film phenomenon at 160-170 DEG C.In coiled material production, cooling can only be used Asphalt temperature or water spray way force cooling, cause pitch mobility side poor, production efficiency decline.
In the production of PE release film, mould release is thermosetting reaction type vinyl silicone oil, the requirement of response type vinyl silicone oil PE film surface reaction temperature is at 90 DEG C or more, but the fusing point of PE film determines, and no more than 95 DEG C of film surface temperature, so, vinyl The extent of reaction of silicone oil is incomplete, it is necessary to use temperature-resistant material, can just make reaction at high operating temperatures, react more complete.
That there is barrier properties is poor for polyolefine material, such as waterproof roll internal solvent oil, generally there is color, can be by release Film penetrates into the surface of film, and film is made to turn yellow, and appearance is excessively poor.
PET fusing point Wen Du≤230 DEG C, though not causing to scald film phenomenon, elongation percentage is low.It is produced in gluing industry, such as coiled material In, because and pitch shrinking percentage it is inconsistent, will cause coiled material and play drum, crumple, not only influence appearance, work progress is also roused because rising, and is made Coiled material cannot fit perfectly ground completely, influence plybonding effect.
Summary of the invention
The purpose of the present invention is to provide the good modified nylon 6 polypropylene composite materials release films of a kind of high-temperature resistant, barriers function. First, the heat resistance of release film is improved, during applying silicon, can guarantee to apply silicon effect by oven temperature to 130 DEG C or more Fruit；Second, in coiled material production, asphalt temperature can be increased to 160-170 DEG C or more, scald film without occurring；Third, effectively Coloured solvent naphtha in coiled material is obstructed, makes to shine 3 months outside film, not change colour because of permeability；4th, using blending and modifying, remove price Expensive binder resin makes product cost reduce by 1/3, and product cost improves, and improves the competitiveness of product.
To achieve the above object, technical scheme is as follows:
A kind of modified nylon 6 polypropylene composite materials release film, including five-layer co-squeezing layer structure, the five-layer co-squeezing layer structure according to It is secondary be the first surface layer, the second toughening with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th toughening with chromatograph and the Chromatograph is matched in five printings；Wherein, the third modified nylon 6 polypropylene enhancing barrier layer includes modified nylon 6 polypropylene.
First layer material is homopolypropylene, and the second layer material is copolymer polypropylene and polyolefin elastomer (POE), third Layer material is modified nylon 6 polypropylene, and the 4th layer material is copolymer polypropylene and polyolefin elastomer (POE), layer 5 material For homopolypropylene.
Further, first surface layer, the second toughening are with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the Four toughenings are respectively 10-25%, 10-20%, 25-40%, 10- with chromatograph and the 5th percentage of the printing with total volume shared by chromatograph 20% and 10-25%.
First layer and layer 5 thickness account for the 20% of overall thickness, reason first is that the price of homopolypropylene is relatively low, second is that The fusing point of homopolypropylene is higher, outer layer direct contact heat melten gel, and the heat resistance of film is high, third is that taking symmetrical structure, film is not It can crimping.
The second layer and the 4th thickness degree account for the 15% of overall thickness, are+6% micron of copolymer polypropylene and 4% polyolefin elastomer Calcium carbonate-filled master batch, first is that copolymer polypropylene price is slightly expensive, accounting is suitably reduced, second is that the toughness of copolymer polypropylene is better than Poly- polypropylene adds a small amount of elastomer, plays toughening effect, but the rigidity and heat resistance of elastomer meeting expendable material, institute to film Suitably to increase micro-calcium carbonate filler parent granule.
Third layer is modified nylon 6 polypropylene, and thickness accounts for the 30% of overall thickness, first is that main resistance to mild barriers function is played, It must assure that functional layer thickness is greater than other layers, the barrier property and heat resistance of nylon 6 could be embodied, second is that blending and modifying Afterwards, polypropylene phase and 6 phase of nylon respectively account for 50%, and barrier channel is occupied by polypropylene segment, it is necessary to which thickness is in increasing, guarantees barrier effect Energy.
First surface layer, the second toughening are matched with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th toughening Chromatograph and the 5th percentage of the printing with total volume shared by chromatograph are respectively 20%, 15%, 30%, 15% and 20%.
Further, the modified nylon 6 polypropylene composite materials release film with a thickness of 0.035-0.045mm, width is 1000-1100mm。
Preferably, the modified nylon 6 polypropylene composite materials release film with a thickness of 0.040mm, wherein first face Layer, the second toughening are with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th toughening with chromatograph and the 5th printing color matching The thickness of layer is respectively 0.008mm, 0.006 mm, 0.012 mm, 0.006 mm and 0.008mm.
First surface layer: PPH 100%；Second toughening matches chromatograph: 85-96% PP-B+1-8%POE+1-10% is micro- Rice filling master batch+color masterbatch；The third modified nylon 6 polypropylene enhances barrier layer: 100% modified nylon 6 polypropylene；It is described 4th toughening matches chromatograph: 85-96%PP-B+1-8%%POE+1-10% microns of filling master batch+color masterbatches；The 5th printing color matching Layer: 80-96%PP-H+5-15%LLDPE+ color masterbatch.
The modified nylon 6 polypropylene is by nylon 6, copolymer polypropylene and maleic anhydride inoculated polypropylene PP-g-MAH system For what is obtained, the weight proportion of the nylon 6, copolymer polypropylene and maleic anhydride inoculated polypropylene PP-g-MAH is 40-55%: 40-55%:2-10%.
Another object of the present invention is to provide the good modified nylon 6 polypropylene composite materials of a kind of high-temperature resistant, barriers function from The processing method of type film.
To achieve the above object, technical scheme is as follows:
A kind of processing method of modified nylon 6 polypropylene composite materials release film, which comprises the steps of:
Step 1: nylon 6, copolymer polypropylene PP-B and maleic anhydride inoculated polypropylene PP-g-MAH are put into high-speed stirred In device, the mixture stirred evenly is added to the parallel dual-screw extruding machine with Strong shear and mixed element of 40 or more draw ratio In, the material for making clothes of extrusion through cooling and dicing, vibration sieving, drying, test moisture content to it is aqueous≤0.03% after, it is poly- to obtain modified nylon 6 Propylene；
Step 2: each layer stirs evenly respectively according to following raw materials according and proportion, in which:
First surface layer: PP-H 100%；
Second toughening matches chromatograph: PP-B+1-8%POE+1-10% microns of filling master batch+color masterbatches of 85-96%；
The third modified nylon 6 polypropylene enhances barrier layer: 100% modified nylon 6 polypropylene；
4th toughening matches chromatograph: 85-96%PP-B+1-8%%POE+1-10% microns of filling master batch+color masterbatches；
Chromatograph: 80-96%PP-H+5-15%LLDPE+ color masterbatch is matched in 5th printing；
Step 3: five layers of raw material are respectively put into the five-layer co-squeezing bottom blow blowout release composite membrane of high temperature resistant；
Step 4: last volume is examined；
Step 5: upper coating machine is coated with silicone oil.
The nylon 6 it is aqueous≤0.03%.
The release composite membrane of high temperature resistant barrier property of five-layer co-squeezing bottom blow blowout, tensile strength Da≤30Mpa, extension Rate >=500%,.High temperature resistant obstructs release composite membrane under the conditions of 170 DEG C, 5min, applies and does not scald film on pitch, shrinking percentage≤1%, no It deforms, not alice.
It is coated with vinyl silicone oil, silicone oil used in this product has reactivity high, and curing degree is high, and peel strength is light, residual Remaining adhesion strength is high, and ageing properties are stablized, and silicon transfer is few.
9 area's temperature of the parallel dual-screw extruding machine are 175-185 DEG C, 195-205 DEG C, 230-240 DEG C, 240- 250 DEG C, 240-250 DEG C, 240-250 DEG C, 235-240 DEG C, 230-240 DEG C and 225-235 DEG C, 210-240 DEG C of melt temperature, machine 210-240 DEG C of temperature of head, screw speed 280-350r/min.
In one embodiment, 9 area's temperature of the parallel dual-screw extruding machine are 180 DEG C, 200 DEG C, 235 DEG C, 245 DEG C, 245 DEG C, 245 DEG C, 240 DEG C, 235 DEG C and 230 DEG C, 225 DEG C of melt temperature, 225 DEG C of head temperature, screw speed 300r/ min。
In one embodiment, first surface layer: PPH 100%；Second toughening matches chromatograph: 90% PP-B+4% POE+6% microns of filling master batch+color masterbatches；The third modified nylon 6 polypropylene enhances barrier layer: 100% modified nylon 6 poly- third Alkene；4th toughening matches chromatograph: 90%PP-B+4%%POE+6% microns of filling master batch+color masterbatches；The 5th printing color matching Layer: 90%PP-H+10%LLDPE+ color masterbatch.
Wherein, the additive amount of the color masterbatch, which can according to need, is added, and is not included in total weight herein.
PP-H is melt flow rate (MFR) in 2-4g/10 min (190 DEG C, 2.16kg) homopolypropylene；PP-B is melt flow Rate is moved in 1-3g/10 min (190 DEG C, 2.16kg) copolymer polypropylene；Modified nylon 6 polypropylene is melt flow rate (MFR) in 1- The modified nylon 6 using maleic anhydride inoculated polypropylene PP-g-MAH as compatilizer of 3g/10 min (230 DEG C, 2.16kg) is poly- Propylene；POE is block polyolefin elastomer of the melt flow rate (MFR) in 1-3g/10 min (190 DEG C, 2.16kg)；Micron filling Masterbatch is micro-calcium carbonate, is filling master batch made of 1500 mesh activated Calcium carbonates；LLDPE is melt flow rate (MFR) in 1- 2g/10 min (190 DEG C, 2.16kg) linear low density polyethylene；Color masterbatch is the assorted color masterbatch that LLDPE does carrier, melt Flow rate is at 15g/10 min (190 DEG C, 2.16kg).
The polyacrylic preparation of modified nylon 6, nylon 6 are a kind of highly polar crystalline polymers, have excellent mechanics Performance, hot property, barrier property, but its highly polar feature keeps its water absorption rate big, poor dimensional stability.Polypropylene (PP), tool Have it is good the mechanical properties, stress cracking resistance outstanding such as stretch, but there are molding shrinkages big, fragile under low temperature to split, obstruct The disadvantages of performance is poor, and heat distortion temperature is not high.Nylon 6 and PP blending are made PA6/PP blend and PA6 and PP can be overcome intrinsic The shortcomings that, learn from other's strong points to offset one's weaknesses in performance.The method for solving the two compatibility is that the expanding material with reactive functional groups is added, and makes increase-volume Agent realizes that PA6 is blended with the compatibility of PP in the copolymer with in-situ generation in PA6, PP Blending Processes with compatibilization.
Specific embodiment
The present invention provides a kind of modified nylon 6 polypropylene composite materials release film, including five-layer co-squeezing layer structure, described five layers Coextruded layer structure is followed successively by the first surface layer, the second toughening increases with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th It is tough to match chromatograph with chromatograph and the 5th printing；Wherein, the third modified nylon 6 polypropylene enhancing barrier layer includes modified nylon 6 Polypropylene.
First layer material is homopolypropylene, and the second layer material is copolymer polypropylene and polyolefin elastomer (POE), third Layer material is modified nylon 6 polypropylene, and the 4th layer material is copolymer polypropylene and polyolefin elastomer (POE), layer 5 material For homopolypropylene.
First surface layer, the second toughening are matched with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th toughening Chromatograph and the 5th percentage of the printing with total volume shared by chromatograph are respectively 10-25%, 10-20%, 25-40%, 10-20% and 10- 25%。
First layer and layer 5 thickness account for the 20% of overall thickness, reason first is that the price of homopolypropylene is relatively low, second is that The fusing point of homopolypropylene is higher, outer layer direct contact heat melten gel, and the heat resistance of film is high, third is that taking symmetrical structure, film is not It can crimping.
The second layer and the 4th thickness degree account for the 15% of overall thickness, are+6% micron of copolymer polypropylene and 4% polyolefin elastomer Calcium carbonate-filled master batch, first is that copolymer polypropylene price is slightly expensive, accounting is suitably reduced, second is that the toughness of copolymer polypropylene is better than Poly- polypropylene adds a small amount of elastomer, plays toughening effect, but the rigidity and heat resistance of elastomer meeting expendable material, institute to film Suitably to increase micro-calcium carbonate filler parent granule.
Third layer is modified nylon 6 polypropylene, and thickness accounts for the 30% of overall thickness, first is that main resistance to mild barriers function is played, It must assure that functional layer thickness is greater than other layers, the barrier property and heat resistance of nylon 6 could be embodied, second is that blending and modifying Afterwards, polypropylene phase and 6 phase of nylon respectively account for 50%, and barrier channel is occupied by polypropylene segment, it is necessary to which thickness is in increasing, guarantees barrier effect Energy.
First surface layer, the second toughening are matched with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th toughening Chromatograph and the 5th percentage of the printing with total volume shared by chromatograph are respectively 20%, 15%, 30%, 15% and 20%.
The modified nylon 6 polypropylene composite materials release film with a thickness of 0.035-0.045mm, width 1000- 1100mm。
Preferably, the modified nylon 6 polypropylene composite materials release film with a thickness of 0.040mm, wherein first face Layer, the second toughening are with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th toughening with chromatograph and the 5th printing color matching The thickness of layer is respectively 0.008mm, 0.006 mm, 0.012 mm, 0.006 mm and 0.008mm.
First surface layer: PPH 100%；Second toughening matches chromatograph: 85-96% PP-B+1-8%POE+1-10% is micro- Rice filling master batch+color masterbatch；The third modified nylon 6 polypropylene enhances barrier layer: 100% modified nylon 6 polypropylene；It is described 4th toughening matches chromatograph: 85-96%PP-B+1-8%%POE+1-10% microns of filling master batch+color masterbatches；The 5th printing color matching Layer: 80-96%PP-H+5-15%LLDPE+ color masterbatch.
The modified nylon 6 polypropylene is by nylon 6, copolymer polypropylene and maleic anhydride inoculated polypropylene PP-g-MAH system For what is obtained, the weight proportion of the nylon 6, copolymer polypropylene and maleic anhydride inoculated polypropylene PP-g-MAH is 40-55%: 40-55%:2-10%.
The present invention also provides a kind of processing methods of modified nylon 6 polypropylene composite materials release film, which is characterized in that including Following steps:
Step 1: nylon 6, copolymer polypropylene PP-B and maleic anhydride inoculated polypropylene PP-g-MAH are put into high-speed stirred In device, the mixture stirred evenly is added to the parallel dual-screw extruding machine with Strong shear and mixed element of 40 or more draw ratio In, the material for making clothes of extrusion through cooling and dicing, vibration sieving, drying, test moisture content to it is aqueous≤0.03% after, it is poly- to obtain modified nylon 6 Propylene；
Step 2: each layer stirs evenly respectively according to following raw materials according and proportion, in which:
First surface layer: PP-H 100%；
Second toughening matches chromatograph: PP-B+1-8%POE+1-10% microns of filling master batch+color masterbatches of 85-96%；
The third modified nylon 6 polypropylene enhances barrier layer: 100% modified nylon 6 polypropylene；
4th toughening matches chromatograph: 85-96%PP-B+1-8%%POE+1-10% microns of filling master batch+color masterbatches；
Chromatograph: 80-96%PP-H+5-15%LLDPE+ color masterbatch is matched in 5th printing；
Step 3: five layers of raw material are respectively put into the five-layer co-squeezing bottom blow blowout release composite membrane of high temperature resistant；
Step 4: last volume is examined；
Step 5: upper coating machine is coated with silicone oil.
The nylon 6 it is aqueous≤0.03%.
The release composite membrane of high temperature resistant barrier property of five-layer co-squeezing bottom blow blowout, tensile strength Da≤30Mpa, extension Rate >=500%,.High temperature resistant obstructs release composite membrane under the conditions of 170 DEG C, 5min, applies and does not scald film on pitch, shrinking percentage≤1%, no It deforms, not alice.
It is coated with vinyl silicone oil, silicone oil used in this product has reactivity high, and curing degree is high, and peel strength is light, residual Remaining adhesion strength is high, and ageing properties are stablized, and silicon transfer is few.
9 area's temperature of the parallel dual-screw extruding machine are 175-185 DEG C, 195-205 DEG C, 230-240 DEG C, 240- 250 DEG C, 240-250 DEG C, 240-250 DEG C, 235-240 DEG C, 230-240 DEG C and 225-235 DEG C, 210-240 DEG C of melt temperature, machine 210-240 DEG C of temperature of head, screw speed 280-350r/min.
In one embodiment, 9 area's temperature of the parallel dual-screw extruding machine are 180 DEG C, 200 DEG C, 235 DEG C, 245 DEG C, 245 DEG C, 245 DEG C, 240 DEG C, 235 DEG C and 230 DEG C, 225 DEG C of melt temperature, 225 DEG C of head temperature, screw speed 300r/ min。
In one embodiment, first surface layer: PPH 100%；Second toughening matches chromatograph: 90% PP-B+4% POE+6% microns of filling master batch+color masterbatches；The third modified nylon 6 polypropylene enhances barrier layer: 100% modified nylon 6 poly- third Alkene；4th toughening matches chromatograph: 90%PP-B+4%%POE+6% microns of filling master batch+color masterbatches；The 5th printing color matching Layer: 90%PP-H+10%LLDPE+ color masterbatch.
Wherein, the additive amount of the color masterbatch, which can according to need, is added, and is not included in total weight herein.
PP-H is melt flow rate (MFR) in 2-4g/10 min (190 DEG C, 2.16kg) homopolypropylene；PP-B is melt flow Rate is moved in 1-3g/10 min (190 DEG C, 2.16kg) copolymer polypropylene；Modified nylon 6 polypropylene is melt flow rate (MFR) in 1- The modified nylon 6 using maleic anhydride inoculated polypropylene PP-g-MAH as compatilizer of 3g/10 min (230 DEG C, 2.16kg) is poly- Propylene；POE is block polyolefin elastomer of the melt flow rate (MFR) in 1-3g/10 min (190 DEG C, 2.16kg)；Micron filling Masterbatch is micro-calcium carbonate, is filling master batch made of 1500 mesh activated Calcium carbonates；LLDPE is melt flow rate (MFR) in 1- 2g/10 min (190 DEG C, 2.16kg) linear low density polyethylene；Color masterbatch is the assorted color masterbatch that LLDPE does carrier, melt Flow rate is at 15g/10 min (190 DEG C, 2.16kg).
Embodiment 1
A kind of processing method of modified nylon 6 polypropylene composite materials release film, comprising the following steps:
Step 1: modified nylon 6 pp material production, by nylon 6(it is aqueous≤0.03%): copolymer polypropylene (PP-B): Maleic anhydride inoculated polypropylene (PP-g-MAH)=47%:47%:6% weight ratio, is put into high speed agitator (revolving speed 900- It 1400r/min) stirs 5 minutes, the mixture stirred evenly, is put into the band that 40 or more draw ratio is added through feeder in barrel and cuts by force Cut and the parallel dual-screw extruding machine of mixed element in, 9 area's temperature of extruder are 180 DEG C, 200 DEG C, 235 DEG C, 245 DEG C, 245 DEG C, it 245 DEG C, 240 DEG C, 235 DEG C, 230 DEG C, 225 DEG C of melt temperature, 225 DEG C of head temperature, screw speed 300r/min, squeezes out Material for making clothes through cooling and dicing, vibration sieving, drying, test moisture content (aqueous≤0.03%) is incorporated with the packet of liner sealing after qualified In pack；
Step 2: raw material metering proportion:
1st layer of PPH 100%,
2nd layer of 90% PP-B+4%POE+6% microns of filling master batch,
3rd layer: 100% modified nylon polypropylene,
4th layer: 90%PP-B+4%%POE+6% microns filling master batch,
5th layer: 90%PP-H+10%LLDPE,
Five layers of raw material is stirred evenly respectively；
Step 3: five layers of raw material is respectively put into the five-layer co-squeezing bottom blow blowout release composite membrane of high temperature resistant；
Step 4: last volume is examined；
Step 5: upper coating machine is coated with silicone oil.
Embodiment 2
A kind of processing method of modified nylon 6 polypropylene composite materials release film, comprising the following steps:
Step 1: manufacture modified nylon 6 polypropylene alloy material, by nylon 6(viscosity 3.6): copolymer polypropylene (PP-B): horse Maleic anhydride grafted polypropylene (PP-g-MAH)=46%:46%:8% weight ratio is put into high speed agitator stirring, stirs evenly Mixture, be put into the parallel dual-screw with Strong shear and mixed element that 40 or more draw ratio is added through feeder in material storage tube and squeeze Out in machine, 9 area's temperature of extruder be 180 DEG C, 200 DEG C, 230 DEG C, 245 DEG C, 250 DEG C, 245 DEG C, 240 DEG C, 230 DEG C, 225 DEG C, 230 DEG C of melt temperature, 230 DEG C of head temperature, screw speed 320r/min, the material for making clothes of extrusion shook through cooling and dicing Sieve, drying are tested moisture content, are incorporated in the packaging bag of liner sealing after qualified.
Step 2: raw material metering proportion:
1st layer: PPH 100%,
2nd layer: 91% PP-B+3%POE+6% microns filling master batch,
3rd layer: 100% modified nylon polypropylene,
4th layer: 91%PP-B+3%%POE+6% microns filling master batch,
5th layer: 90%PP-H+10%LLDPE,
Five layers of raw material is stirred evenly respectively；
Step 3: five layers of raw material is respectively put into the five-layer co-squeezing bottom blow blowout release composite membrane of high temperature resistant；
Step 4: last volume is examined；
Step 5: upper coating machine is coated with silicone oil.
The modified nylon 6 polypropylene composite materials release film that embodiment 1 and embodiment 2 obtain has the advantages that Tensile strength Da≤30Mpa, elongation percentage >=500%；Under the conditions of 170 DEG C, 5min, applies and do not scald film on pitch, shrinking percentage≤2%, It is indeformable, not alice；Coloured solvent naphtha in effective barrier coiled material makes to shine 3 months outside film, not change colour because of permeability；Silicon transfer It is few, it can guarantee the initial bonding strength of pitch.
Wherein, it is coated with vinyl silicone oil, it is a kind of special silicon of this product that silicone oil used in this product, which is Dow Corning Corporation, Oil has reactivity high, and curing degree is high, and peel strength is light, and remaining adhesion strength is high, and ageing properties are stablized, and silicon transfer is few.
Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is simultaneously unlimited It is formed on particular embodiments described above.To those skilled in the art, any couple of present invention carries out equivalent modifications and Substitution is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by equal transformation and Modification, all should be contained within the scope of the invention.

Claims (8)

1. a kind of modified nylon 6 polypropylene composite materials release film, which is characterized in that it is by the film with following five-layer co-squeezing layer structure Coating silicone oil forms, and it is poly- with chromatograph, third modified nylon 6 that the five-layer co-squeezing layer structure is followed successively by the first surface layer, the second toughening Propylene enhances barrier layer, the 4th toughening and matches chromatograph with chromatograph and the 5th printing；Wherein, the third modified nylon 6 polypropylene increases Strong barrier layer includes modified nylon 6 polypropylene；
First surface layer: PP-H 100%；
Second toughening matches chromatograph: PP-B+1-8%POE+1-10% microns of filling master batch+color masterbatches of 85-96%；
The third modified nylon 6 polypropylene enhances barrier layer: 100% modified nylon 6 polypropylene, the modified nylon 6 polypropylene It is to be prepared by nylon 6, copolymer polypropylene and maleic anhydride inoculated polypropylene PP-g-MAH, the nylon 6, copolymerization poly- third The weight proportion of alkene and maleic anhydride inoculated polypropylene PP-g-MAH are 40-55%:40-55%:2-10%；
4th toughening matches chromatograph: 85-96%PP-B+1-8%%POE+1-10% microns of filling master batch+color masterbatches, wherein PP-B For the melt flow rate (MFR) at 190 DEG C, tested under the conditions of 2.16kg 1-3g/10 min copolymer polypropylene；
Chromatograph: 90%PP-H+10%LLDPE is matched in 5th printing, and wherein PP-H is to test under the conditions of 2.16kg at 190 DEG C Homopolypropylene of the melt flow rate (MFR) arrived in 2-4g/10 min.
2. modified nylon 6 polypropylene composite materials release film according to claim 1, which is characterized in that first surface layer, Two toughenings are with chromatograph, third modified nylon 6 polypropylene enhancing barrier layer, the 4th toughening with chromatograph and the 5th printing with shared by chromatograph The percentage of total volume is respectively 10-25%, 10-20%, 25-40%, 10-20% and 10-25%.
3. modified nylon 6 polypropylene composite materials release film according to claim 1, which is characterized in that the modified nylon 6 is poly- The compound release film of propylene with a thickness of 0.035-0.045mm, width 1000-1100mm.
4. modified nylon 6 polypropylene composite materials release film according to claim 1, which is characterized in that the modified nylon 6 is poly- The compound release film of propylene with a thickness of 0.040mm, wherein first surface layer, the second toughening match chromatograph, third modified nylon 6 Polypropylene enhancing barrier layer, the 4th toughening with chromatograph and the 5th printing with chromatograph thickness be respectively 0.008mm, 0.006 mm, 0.012 mm, 0.006 mm and 0.008mm.
5. a kind of processing method of modified nylon 6 polypropylene composite materials release film, which comprises the steps of:
Step 1: nylon 6, copolymer polypropylene PP-B and maleic anhydride inoculated polypropylene PP-g-MAH are put into high speed agitator, The mixture stirred evenly is added in the parallel dual-screw extruding machine with Strong shear and mixed element of 40 or more draw ratio, is squeezed Material for making clothes out through cooling and dicing, vibration sieving, drying, test moisture content to it is aqueous≤0.03% after, obtain modified nylon 6 polypropylene；
Step 2: each layer stirs evenly respectively according to following raw materials according and proportion, in which:
First surface layer: PP-H 100%；
Second toughening matches chromatograph: PP-B+1-8%POE+1-10% microns of filling master batch+color masterbatches of 85-96%；
Third modified nylon 6 polypropylene enhances barrier layer: 100% modified nylon 6 polypropylene；
4th toughening match chromatograph: 85-96%PP-B+1-8%%POE+1-10% micron filling master batch+color masterbatches, wherein PP-B for 190 DEG C, copolymer polypropylene of the melt flow rate (MFR) tested under the conditions of 2.16kg in 1-3g/10 min；
Chromatograph: 90%PP-H+10%LLDPE is matched in 5th printing, and wherein PP-H is at 190 DEG C, and test obtains under the conditions of 2.16kg Homopolypropylene of the melt flow rate (MFR) in 2-4g/10 min；
Step 3: five layers of raw material are respectively put into the five-layer co-squeezing bottom blow blowout release composite membrane of high temperature resistant；
Step 4: last volume is examined；
Step 5: upper coating machine is coated with silicone oil.
6. the processing method of modified nylon 6 polypropylene composite materials release film according to claim 5, which is characterized in that described Nylon 6 it is aqueous≤0.03%.
7. the processing method of modified nylon 6 polypropylene composite materials release film according to claim 5, which is characterized in that described 9 area's temperature of parallel dual-screw extruding machine are 175-185 DEG C, 195-205 DEG C, 230-240 DEG C, 240-250 DEG C, 240-250 DEG C, 240-250 DEG C, 235-240 DEG C, 230-240 DEG C and 225-235 DEG C, 210-240 DEG C of melt temperature, head temperature 210-240 DEG C, screw speed 280-350r/min.
8. the processing method of modified nylon 6 polypropylene composite materials release film according to claim 5, which is characterized in that nylon 6 Modified polypropene is at 230 DEG C, and the melt flow rate (MFR) tested under the conditions of 2.16kg is in 1-3g/10 min with maleic acid Modified nylon 6 polypropylene of the acid anhydride graft polypropylene PP-g-MAH as compatilizer；
POE is block polyolefin elastomer of the melt flow rate (MFR) in 1-3g/10 min (190 DEG C, 2.16kg)；
Micron filling master batch is micro-calcium carbonate, is filling master batch made of 1500 mesh activated Calcium carbonates；
LLDPE is melt flow rate (MFR) in 1-2g/10 min (190 DEG C, 2.16kg) linear low density polyethylene；
Color masterbatch is at 190 DEG C, and test obtains melt flow rate (MFR) and does carrier in the LLDPE of 15g/10 min under the conditions of 2.16kg Assorted color masterbatch.
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