CN109605886A - A kind of high-temperature resistant nano grade tack optical protection layer and its production method - Google Patents
A kind of high-temperature resistant nano grade tack optical protection layer and its production method Download PDFInfo
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- CN109605886A CN109605886A CN201811363161.1A CN201811363161A CN109605886A CN 109605886 A CN109605886 A CN 109605886A CN 201811363161 A CN201811363161 A CN 201811363161A CN 109605886 A CN109605886 A CN 109605886A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000010410 layer Substances 0.000 claims abstract description 96
- 239000011347 resin Substances 0.000 claims abstract description 53
- 229920005989 resin Polymers 0.000 claims abstract description 53
- 239000012790 adhesive layer Substances 0.000 claims abstract description 26
- -1 polypropylene Polymers 0.000 claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- 239000004743 Polypropylene Substances 0.000 claims abstract description 15
- 229920001155 polypropylene Polymers 0.000 claims abstract description 15
- 239000000806 elastomer Substances 0.000 claims abstract description 9
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 8
- 239000011737 fluorine Substances 0.000 claims abstract description 8
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 8
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 8
- 238000007766 curtain coating Methods 0.000 claims abstract description 7
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 claims abstract description 7
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 5
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000000356 contaminant Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000012824 chemical production Methods 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 239000004925 Acrylic resin Substances 0.000 claims 1
- 229920000178 Acrylic resin Polymers 0.000 claims 1
- 244000043261 Hevea brasiliensis Species 0.000 claims 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Natural products CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 238000001556 precipitation Methods 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 15
- 239000000047 product Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
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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
- B32B2250/03—3 layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
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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
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- B32B2307/30—Properties of the layers or laminate having particular thermal properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
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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
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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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
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of high-temperature resistant nano grade tack optical protection layer and its production methods.The tack optical protection layer includes self-adhesive layer, middle layer reconciliation volume layer; it is (70-80): (10-20): metallocene PE elastomer resin, soft rubber resin and the ternary polymerized polypropylene resin of (5-15) that wherein self-adhesive layer, which includes mass ratio; middle layer includes that mass ratio is (25-35): (35-45): high-density polyethylene resin, linear low density polyethylene resin and the ldpe resin of (25-40), and solution volume layer includes that mass ratio is (90-98): the block polypropylene resin and fluorine-containing auxiliary agent of (2-10).The tack optical protection layer produces acquisition by multi-layer co-extruded curtain coating mode.Tack optical protection layer of the present invention has high temperature resistant, does not shrink, can paste again, the good characteristic without precipitation.
Description
Technical field
The invention belongs to optical functional materials fields, are specifically related to a kind of high-temperature resistant nano grade tack optical protection layer
And its production method.
Background technique
With the development of LCD technology, backlight module used in liquid crystal display device is during carrying or storage
Easily there are the adverse consequences such as the scratch, pollution, damage deformation of optical diaphragm, therefore on being covered on the optical diaphragm of backlight module
Protective film, to prevent the above phenomenon from generating.Backlight module optical film must repeatedly be printed in use, high temperature is dry repeatedly
It is dry, and the protective film being covered on it must similarly pass through multiple tear-off, paste repeatedly, high-temperature drying procedures.
However, the protective film that tradition uses mostly is that protection optical diaphragm is without damage in transport transmit process, it can not be in height
It prevents printing layer from scraping pollution under warm environment, and the non-resilient contraction of high temperature easily occurs, optical diaphragm is caused to deform.Therefore, anxious
Need to develop it is a kind of with high temperature resistant, do not shrink, can again patch, the tack optical protection layer without precipitation.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of high-temperature resistant nano grade tack optical protection layer and its lifes
Production method.
In order to achieve the object of the present invention, the invention adopts the following technical scheme:
A kind of high-temperature resistant nano grade tack optical protection layer, the tack optical protection layer include self-adhesive layer, middle layer
Conciliate volume layer；
The self-adhesive layer includes that components by weight percent has: 70-80% metallocene PE elastomer resin, the soft rubber of 10-20%
Gum resin styrene-isoprene polymer and 5-15% ternary polymerized polypropylene resin；
The middle layer includes that components by weight percent has: 25-35% high-density polyethylene resin, 35-45% linea low density are poly-
Vinyl and 25-40% ldpe resin；
The solution volume layer includes that components by weight percent has: 90-98% block polypropylene resin and the fluorine-containing auxiliary agent of 2-10%.
Further technical solution: the tack optical protection layer overall thickness is 45-48 microns, the self-adhesive layer thickness
The 15%-20% of tack optical protection layer overall thickness is accounted for, the intermediate layer thickness accounts for tack optical protection layer overall thickness
50%-55%, the uncoiling thickness degree account for the 25%-35% of tack optical protection layer overall thickness.
Further technical solution: the self-adhesive layer includes that components by weight percent has: 75% metallocene PE elastomer resin,
15% soft rubber Resin styrene-isoprene copolymer and 10% ternary polymerized polypropylene resin；The middle layer packet
Including components by weight percent has: 30% high-density polyethylene resin, 40% linear low density polyethylene resin and 30% low density polyethylene
Olefine resin；The solution volume layer includes that components by weight percent has: 95% block polypropylene resin and 5% fluorine-containing auxiliary agent.
Further technical solution: the metallocene PE elastomer resin in the self-adhesive layer is given birth to by Mitsui chemistry
It produces and the trade mark is PN2060, soft rubber Resin styrene-isoprene copolymer in the self-adhesive layer rises polymer by section
Production and the trade mark are G1648, and the ternary polymerized polypropylene resin in the self-adhesive layer is produced by Japanese JPP and the trade mark is WFX4,
High-density polyethylene resin in the middle layer is produced by Japanese JPC and the trade mark is HF560, linear low in the middle layer
Density Polyethylene Resin is produced by Japanese JPC and the trade mark is KF370, and the ldpe resin in the middle layer is by Japan
JPP production and the trade mark are Z372, and the block polypropylene resin in the solution volume layer is produced by Japanese JPP and the trade mark is BC3HF, institute
State solution volume layer in fluorine-containing auxiliary agent produced by Beijing Aaron and the trade mark be 100991-K.
A kind of production method of the tack optical protection layer, comprising the following steps:
Step 1, material contained in the self-adhesive layer, middle layer and solution volume layer is thrown respectively by said components proportion requirement
Enter multi-layer co-extruded casting machine and correspond to material sucking area, negative pressure of vacuum is transported to extruder hopper, corresponds to machine barrel plasticizing at molten through extruder
Body；
Step 2, melt is squeezed out by extruder screw, and filter carries out contaminant filter, is arrived after beta thickness gauge thickness measuring
Up to die head, solid film successively is cooled into through casting roller, chill roll；
Step 3, the solid film is drawn by traction roller, is wound into parent roll after corona machine corona, parent roll through overaging at
Reason, obtains the tack optical protection layer.
Further technical solution: the length of extruder screw is through than L/D >=34 in step 2.
Further technical solution: in step 1 barrel where self-adhesive layer include 6 heating sections and each heating section temperature according to
It is secondary be 210 DEG C, 225 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, barrel where the middle layer includes 8 heating sections and respectively adds
The temperature of temperature section is followed successively by 90 DEG C, 200 DEG C, 220 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, and the solution volume layer includes
The temperature of 6 heating sections and each heating section is followed successively by 215 DEG C, 225 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230 DEG C.
Further technical solution: curtain coating roller surface described in step 2 is cloudy surface and surface roughness is 0.35-038；Institute
Stating cooling roller surface is mirror surface；The curtain coating roll temperature is 42 ± 1 DEG C, and the chill-roll temperature is 48 ± 1 DEG C.
Further technical solution: the temperature of parent roll ageing treatment is 48 DEG C in step 3, humidity 70%, and aging time is
60 hours.
The beneficial effects of the present invention are:
(1) the advantages of tack optical protection layer of the present invention: a, good stability of the dimension, 150 DEG C of heating 1h are not shunk,
With the splendid fit effect of high temperature；B, low-surface-energy, substance is without precipitation, tear-off process free from admixture, transmitance height；C, product knot
Structure is simple, have stable self-adhesion, multiple tear-off can be carried out in use, paste repeatedly and viscosity do not decline.
(2) the polyethylene elastomer resin in self-adhesive layer described in the polyethylene elastomer resin of self-adhesive layer of the present invention
It is PN2060 by Mitsui chemical production and the trade mark, which has good temperature tolerance, and processing performance is excellent, and viscosity simultaneously has
Excellent anti-flex performance.Soft rubber resin in the self-adhesive layer rises polymer production by section and the trade mark is G1648, the production
Product have preferable thermal stability, and have good compatibility, and processing performance is excellent.Ternary polymerized polypropylene in the self-adhesive layer
Resin is produced by Japanese JPP and the trade mark is WFX4, and the good heat-resisting quantity of the product, low crystal point, precipitate is few when processing.It is described
High-density polyethylene resin in middle layer is produced by Japanese JPC and the trade mark is HF560, and the product crystal point is few, higher rigidity
And toughness, mechanical strength is good, and dielectric properties, environmental stress crack resistance is also preferable, and processing performance is good.In the middle layer
Linear low density polyethylene resin is produced by Japanese JPC and the trade mark is KF370, and the product processing performance is excellent, with very little
Shear-sensitive degree keeps certain viscosity, good toughness.Ldpe resin in the middle layer is produced by Japanese JPP
And the trade mark is Z372, the product processing performance is excellent, low crystal point and precipitate.Block polypropylene resin in the solution volume layer by
Japanese JPP production and the trade mark are BC3HF, and the molecular weight product is controllable and wider distribution, and the compatible and interface of blending can be promoted to change
Property.Fluorine-containing auxiliary agent in the solution volume layer is produced by Beijing Aaron and the trade mark is 100991-K, and the product processing performance is excellent, energy
Melt flows damping is reduced, the surface quality of product is promoted.
(3) be the advantages of production method of the present invention: the particle processing performance is excellent, has low crystal point and low precipitation
Characteristic.The filter screen can effectively filter the impure point in removal particle, guarantee film surface quality, be precipitated without substance, can be effective
Protect optical device.The length is through being greater than 34 screw rod than L/D, and shearing force is moderate, so that the product is able to maintain original viscosity.
The temperature of the extruder is set, so that the mobility of resin is optimal, produces easy to process, the film surface of production
Better quality.Temperature of the film roll through Wetted constructures is 48 DEG C, and humidity 70%, aging time is 60 hours, realizes film roll
Fully free shrink discharges internal stress, improves the stability of film dimensions.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of tack optical protection layer of the present invention.
Fig. 2 be high-temperature resistant nano grade tack optical protection layer of the present invention production material strip drawing tension, S type drawing tension,
Center driven tension parameters figure.
1- self-adhesive layer；2- middle layer；3- solves volume layer.
Specific embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, and is only used for explaining this hair
It is bright, and limiting the scope of the invention cannot be construed to.
The preparation method of the high-temperature resistant nano grade tack optical protection layer, comprising the following steps:
Step 1, material contained in the self-adhesive layer, middle layer and solution volume layer is thrown respectively by said components proportion requirement
Enter multi-layer co-extruded casting machine and correspond to material sucking area, negative pressure of vacuum is transported to extruder hopper, is plasticized by extruder into melt；Self-adhesive layer
Place barrel includes 6 heating sections and each temperature for heating section is followed successively by 210 DEG C, 225 DEG C, 230 DEG C, 230 DEG C, 230 DEG C, 230
DEG C, barrel where the middle layer includes 8 heating sections and each temperature for heating section is followed successively by 90 DEG C, 200 DEG C, 220 DEG C, 225
DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, the solution volume layer includes that the temperature of 6 heating sections and each heating section is followed successively by 215
℃、225℃、230℃、230℃、230℃、230℃。
Step 2, melt is squeezed out by extruder screw, and filter carries out contaminant filter, is arrived after beta thickness gauge thickness measuring
Up to die head, solid film successively is cooled into through casting roller, chill roll；The length of extruder screw is through than L/D=34 in step 2；Step
Curtain coating roller surface described in rapid 2 is cloudy surface and surface roughness is 0.35-038；The cooling roller surface is mirror surface；The curtain coating
Roll temperature is 42 ± 1 DEG C, and the chill-roll temperature is 48 ± 1 DEG C.
The filter includes that common seat type welding filter screen and " type " disc-type long-acting filter, i.e. melt successively pass through
It crosses common seat type welding filter screen and " type " disc-type long-acting filter is filtered processing.The seat type welds filter screen
100/200/400/600/100/20 mesh structure.
Step 3, the solid film is drawn by traction roller, is wound into parent roll after corona machine corona, parent roll through overaging at
Reason, obtains the tack optical protection layer；The temperature of parent roll ageing treatment is 48 DEG C, humidity 70%, and aging time is 60 small
When.
Process control parameter is as shown in table 1 below in the preparation method of the high-temperature resistant nano grade tack optical protection layer:
A represents middle layer in table 1, and B represents self-adhesive layer, C represents solution volume layer.Gather materials block i.e. distributor, and the distributor is by β
Gamma thickness gage and corresponding control unit are constituted.Its multiple tracks melt for squeezing out different extruders of distributor, according to required
Sequence arrangement, be merged into after one of melt and enter die head, i.e., record and feed back using the display of beta thickness gauge automatic measuring thickness
On the thermal expansion screw of die head, automatic die adjusts gap, and the film head uses hanger-style die.S type drawing tension, center are driven
Dynamic tension is winding parameter；On extension roller/extension roller under to wind upper nip rolls and lower nip rolls.
Table 1
Production method and characteristic that 3 embodiments illustrate optical protection layer of the present invention with it, the embodiment is set forth below
The formula rate of the preparation difference according to the form below 2 of middle optical protection layer carries out:
Table 2
The 5 kinds of optical protection layer performance parameters produced according to above method are as shown in table 3 below:
Table 3
Object detecting method is precipitated described in table 3: self-adhesive protective film being affixed on PC plate/acrylic board/glass plate, fitting 24 is small
Shi Hou tears protective film, and with blue light illumination PC plate/acrylic board/glass plate, 45 ° visually whether there is or not white points.
Shown by the performance in above table: tack optical protection layer provided by the invention has high temperature resistant, does not receive
Contracting can paste, the characteristic without precipitation again.
Claims (9)
1. a kind of high-temperature resistant nano grade tack optical protection layer, it is characterised in that: the tack optical protection layer includes self-adhesion
Layer, middle layer conciliate volume layer；
The self-adhesive layer includes that components by weight percent has: 70-80% metallocene PE elastomer resin, 10-20% soft rubber tree
Rouge styrene-isoprene polymer and 5-15% ternary polymerized polypropylene resin；
The middle layer includes that components by weight percent has: 25-35% high-density polyethylene resin, 35-45% linear low density polyethylene
Resin and 25-40% ldpe resin；
The solution volume layer includes that components by weight percent has: 90-98% block polypropylene resin and the fluorine-containing auxiliary agent of 2-10%.
2. tack optical protection layer as described in claim 1, it is characterised in that: the tack optical protection layer overall thickness
It is 45-48 microns, the self-adhesive layer thickness accounts for the 15%-20% of tack optical protection layer overall thickness, the intermediate layer thickness
The 50%-55% of tack optical protection layer overall thickness is accounted for, the uncoiling thickness degree accounts for tack optical protection layer overall thickness
25%-35%.
3. tack optical protection layer as described in claim 1, it is characterised in that: the self-adhesive layer includes that components by weight percent has:
75% metallocene PE elastomer resin, 15% soft rubber Resin styrene-isoprene copolymer and 10% ternary
Acrylic resin copolymer；The middle layer includes that components by weight percent has: 30% high-density polyethylene resin, 40% linea low density are poly-
Vinyl and 30% ldpe resin；The solution volume layer includes that components by weight percent has: 95% block polypropylene resin
And 5% fluorine-containing auxiliary agent.
4. tack optical protection layer as described in claim 1, it is characterised in that: the metallocene PE in the self-adhesive layer
Elastomer resin is PN2060 by Mitsui chemical production and the trade mark, the soft rubber Resin styrene-in the self-adhesive layer
Isoprene copolymer rises polymer production by section and the trade mark is G1648, the ternary polymerized polypropylene resin in the self-adhesive layer
It is produced by Japanese JPP and the trade mark is WFX4, the high-density polyethylene resin in the middle layer is produced by Japanese JPC and the trade mark is
HF560, the linear low density polyethylene resin in the middle layer is produced by Japanese JPC and the trade mark is KF370, the middle layer
In ldpe resin produced by Japanese JPP and the trade mark be Z372, it is described solution volume layer in block polypropylene resin by
Japanese JPP is produced and the trade mark is BC3HF, and the fluorine-containing auxiliary agent in the solution volume layer is produced by Beijing Aaron and the trade mark is 100991-
K。
5. a kind of production method of tack optical protection layer according to any one of claims 1-4, it is characterised in that including
Following steps:
Step 1, material contained in the self-adhesive layer, middle layer and solution volume layer is put into respectively by said components proportion requirement more
Layer coextrusion casting machine corresponds to material sucking area, and negative pressure of vacuum is transported to extruder hopper, corresponds to machine barrel plasticizing into melt through extruder；
Step 2, melt is squeezed out by extruder screw, and filter carries out contaminant filter, reaches mould after beta thickness gauge thickness measuring
Head is successively cooled into solid film through casting roller, chill roll；
Step 3, the solid film is drawn by traction roller, and parent roll is wound into after corona machine corona, and parent roll is obtained through Wetted constructures
Obtain the tack optical protection layer.
6. the production method of high-temperature resistant nano grade tack optical protection layer as described in right 5, it is characterised in that: squeezed in step 2
The length of machine screw rod is through than L/D >=34 out.
7. the production method of high-temperature resistant nano grade tack optical protection layer as described in right 5, it is characterised in that: in step 1 certainly
Barrel where adhesion coating includes that the temperature of 6 heating sections and each heating section is followed successively by 210 DEG C, 225 DEG C, 230 DEG C, 230 DEG C, 230 DEG C,
230 DEG C, barrel where the middle layer include the temperature of 8 heating sections and each heating section be followed successively by 90 DEG C, 200 DEG C, 220 DEG C,
225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, 225 DEG C, the solution volume layer includes 6 heating sections and each temperature for heating section is followed successively by
215℃、225℃、230℃、230℃、230℃、230℃。
8. the production method of high-temperature resistant nano grade tack optical protection layer as described in right 5, it is characterised in that: institute in step 2
Stating curtain coating roller surface is cloudy surface and surface roughness is 0.35-038；The cooling roller surface is mirror surface；The curtain coating roll temperature
It is 42 ± 1 DEG C, the chill-roll temperature is 48 ± 1 DEG C.
9. the production method of high-temperature resistant nano grade tack optical protection layer as described in right 5, it is characterised in that: female in step 3
The temperature for rolling up ageing treatment is 48 DEG C, and humidity 70%, aging time is 60 hours.
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Application publication date: 20190412 |