CN106671547B - A kind of optical polyester film - Google Patents
A kind of optical polyester film Download PDFInfo
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- CN106671547B CN106671547B CN201611209388.1A CN201611209388A CN106671547B CN 106671547 B CN106671547 B CN 106671547B CN 201611209388 A CN201611209388 A CN 201611209388A CN 106671547 B CN106671547 B CN 106671547B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/688—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur
- C08G63/6884—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6886—Dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- B32B2250/02—2 layers
-
- 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
-
- 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
- B32B2250/244—All polymers belonging to those covered by group B32B27/36
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/536—Hardness
-
- 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
- B32B2307/584—Scratch resistance
-
- 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
- B32B2551/00—Optical elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
-
- 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
-
- 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
-
- 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 invention discloses a kind of optical polyester films, the optical polyester film using single layer A, two layers of A/B, three layers of A/B/A or A/B/C co-extrusion biaxially oriented polyester film, A layers or A, C layers containing the polyester modified by 4.4 '-dihydroxydiphenylsulisomers and/or 4.4 '-dihydroxy benaophenonels, the optical polyester film with a thickness of 12 μm~350 μm.The present invention is modified the surface property of polyester film, improves raising and functional layer adhesive fastness and adhesive force, improves the hardness and adhesion strength of polyester film surface.It can be widely applied to the deep processing of diffusion sheet in backlight source module, prismatic lens, protective film, film interior trim, fenestrated membrane, photovoltaic material.
Description
Technical field:
The invention discloses a kind of laminar product being made of synthetic resin, especially a kind of stratiform being made of polyester is produced
Product.
Background technique:
Polyester film has good mechanical performance, electrical apparatus insulation performance and excellent optical property and flexible due to it
Property, injection molding, hard is widely applied in electrical apparatus insulation industry, flat-panel monitor industry, photovoltaic material industry and film as support
Formula protection etc., but since the surface tension of polyester film is lower, the phase is processed into a series of functions such as diffusion sheet, prismatic lens behind
When film, the surface of polyester film has to pass through chemical treatment, that is, coats one layer of adhesive layer on the surface of polyester film, comes
The surface tension of surface of polyester is improved, improves and otherwise will cause functional layer in polyester with functional layer adhesive fastness and adhesive force
Film surface falls off.When surface of polyester is coated, technique is cumbersome, and a road easily occurs when coating adhesive layer, bubble point, draws
The a series of the coating appearance disadvantages such as wound.Furthermore in previous polyester film, the hardness of film surface is lower, production and
In use process easily generate scratch, rub wound etc. disadvantages, influence polyester film later period use, be in order to solve this problem
After polyester film is chemically treated, it is coated with one layer of hardening coat, improves the hardness of surface of polyester.
Summary of the invention:
The purpose of the present invention is intended to overcome the deficiencies in the prior art described above, and provides a kind of optics polyester of biaxial tension
Film；It can improve the surface tension and surface hardness of surface of polyester, improve the attachment fastness and adhesion strength of surface of polyester；
The general thickness of film is 12 μm~350 μm.
Solve the above problems taken technical solution are as follows:
A kind of optical polyester film, the optical polyester film are total using single layer A, two layers of A/B, three layers of A/B/A or A/B/C
Crowded biaxially oriented polyester film, A layers or A, C layers containing by 4.4 '-dihydroxydiphenylsulisomers and/or 4.4 '-dihydroxy hexichol first
The modified polyester of ketone, the optical polyester film with a thickness of 12 μm~350 μm.
Above-mentioned optical polyester film, the molar content that the 4.4 '-dihydroxydiphenylsulisomer accounts for dihydric alcohol is 5%~55%,
The molar content that the 4.4 '-dihydroxy benaophenonel accounts for dihydric alcohol is 0%~10%, and ethylene glycol accounts for the 35% of glycol content
~95%.
Above-mentioned optical polyester film, it is A, C layer described in modified poly ester used by dihydric alcohol be 4.4 '-dihydroxy hexichol
Sulfone, 4.4 '-dihydroxy benaophenonels, ethylene glycol, the 4.4 '-dihydroxydiphenylsulisomer account for dihydric alcohol molar content, preferably 5%~
30%.
Above-mentioned optical polyester film, it is A, C layer described in modified poly ester also add acid, the acid be terephthalic acid (TPA) and
One or both of phthalic acid, wherein the content of M-phthalic acid accounts for sour molar content 0%~30%, and terephthalic acid (TPA) accounts for
The 70%~100% of sour molar content.
Above-mentioned optical polyester film, the optical polyester film can be used single layer structure A, single layer structure with a thickness of 12 μm
~350 μm.
Above-mentioned optical polyester film, the optical polyester film use double-layer structure A/B, wherein account for general thickness for A layers
3%~50%, most preferably 7%~30%.
Above-mentioned optical polyester film, the optical polyester film use three-decker A/B/A, wherein account for general thickness for A layers
2%~25%, most preferably 5%~15%.
Above-mentioned optical polyester film, the optical polyester film use three-decker A/B/C, wherein account for general thickness for A layers
2%~25%, C layer account for 2%~25%, the A layer of general thickness and C thickness degree and may be the same or different.
Above-mentioned optical polyester film, described optical polyester film A layers and C layers can be the modified poly ester of identical component,
It can be the modified poly ester of heterogeneity.
Above-mentioned optical polyester film, the optical polyester film be by melting extrusion, slab, it is vertical draw, it is horizontal draw, traction and
Winding obtains.
Compared with prior art, the present invention uses the binary of 4.4 '-dihydroxydiphenylsulisomers, 4.4 '-dihydroxy benaophenonels
Alcohol modified poly ester, using existing drawing process, operation is simple, is modified to the surface property of polyester film surface,
Improve with functional layer adhesive fastness and adhesive force, improve the hardness and adhesion strength of polyester film surface, can answer extensively
Deep processing for diffusion sheet, prismatic lens, protective film, film interior trim, fenestrated membrane, photovoltaic material in backlight source module.
Specific embodiment
Optical polyester film of the invention using single layer A, two layers of A/B, three layers of A/B/A or A/B/C co-extrusion biaxial tension
Polyester film；A layers or A, C layers containing by diatomic alcohol compounds such as 4.4 '-dihydroxydiphenylsulisomers, 4.4 '-dihydroxy benaophenonels
Modified poly ester, the tension on surface can reach 38dyn/cm or more, surface hardness HB or more, with a thickness of 12 μm~350 μm.
Above-mentioned optical polyester film, in A, C layers modified poly ester used dihydric alcohol be 4.4 '-dihydroxydiphenylsulisomers,
4.4 '-dihydroxy benaophenonels, ethylene glycol etc., wherein 4.4 '-dihydroxydiphenylsulisomers account for dihydric alcohol molar content 5%~
55%, 4.4 '-dihydroxy benaophenonels account for the 0%~10% of dihydric alcohol molar content, and ethylene glycol accounts for the 35% of glycol content
~95%.
Dihydric alcohol used by modified poly ester in A, C layer of the present invention is 4.4 '-dihydroxydiphenylsulisomers, 4.4 '-dihydroxy
Benzophenone, ethylene glycol etc., wherein 4.4 '-dihydroxydiphenylsulisomers account for dihydric alcohol molar content, preferably 5%~30%.
Acid used by modified poly ester in A, C layer of the present invention is terephthalic acid (TPA), M-phthalic acid, wherein isophthalic diformazan
The content of acid accounts for sour molar content 0%~18%, and terephthalic acid (TPA) accounts for the 82%~100% of overall content.
The surface of optical polyester film of the present invention, which uses, improves the active group of surface of polyester and surface of polyester hardness
The copolyesters of rigid radical, dihydric alcohol used can be 4.4 '-dihydroxydiphenylsulisomers, 4.4 '-dihydroxy benaophenonels, second two
Three kinds of dihydric alcohols in alcohol, or 4.4 '-dihydroxydiphenylsulisomers and two kinds of dihydric alcohols of ethylene glycol.Selected dihydric alcohol and
One of terephthalic acid (TPA) and M-phthalic acid or two kinds of binary acid combined polymerizations form modified poly ester.
In synthesis modification PET Process, the antimony-based catalysts such as antimony oxide, antimony glycol, antimony acetate can be used,
The Titanium series catalysts such as the germanium such as germanium dioxide system's catalyst system and butyl titanate can be used, be also possible to different catalyst systems
It is compounded.
In synthesis modification PET Process, stabilizer can not be added, stabilizer can also be added, addition stabilizer is optional
The stabilizers such as trimethyl phosphate, triethyl phosphate, phosphoric acid, phosphate triethyl acetate, triphenyl phosphate, tricresyl phosphate,
The content of phosphorus can be with 0ppm~5000ppm.
In A, C layers, it can be added with smooth particle or the masterbatch containing smooth particle, such as silica, organosilicon, carbonic acid
Calcium, barium sulfate, PMMA, PS etc..
In A, C, it can be added with functional compound, such as antioxidant, antistatic agent, ultraviolet absorber.
The inherent viscosity of modified poly ester is 0.55dl/g~0.8dl/g, a kind of optical polyester film of the present invention, affiliated optics
Polyester film using single layer A, two layers of A/B, three layers of A/B/A or A/B/C co-extrusion biaxially oriented polyester film；Gather used in B layers
Ester, refer to by dihydric alcohol and dicarboxylic acids polycondensation obtained polyester, dihydric alcohol is with ethylene glycol, 1.4- cyclohexanedimethanol, 1.3-
The dihydric alcohols such as propylene glycol, 1.4- butanediol are representative, and dicarboxylic acids is terephthalic acid (TPA), M-phthalic acid, 2.6- naphthalenedicarboxylic acid,
Diacid, decanedioic acid etc..Polyester can be ethylene glycol, 1.4- cyclohexanedimethanol, butanediol, propylene glycol etc. it is a kind of or two kinds, it is more
Kind dihydric alcohol polymerize with one or more acid such as terephthalic acid (TPA), M-phthalic acid and is obtained.From mechanical performance, hot property, resistance to molten
Preferably ethylene glycol terephthalate and the 2.6- (ethylene naphthalate) such as agent.Most preferably ethylene glycol terephthalate.
The inherent viscosity of B strata ester is preferably 0.55dl/g~0.8dl/g.
It, can be added with functional compounds such as antioxidant, ultraviolet absorber, smooth particles in the present invention in B layers.?
The overall thickness of film is 12 μm~350 μm in the present invention.In the present invention, single layer structure A, single layer structure is can be used in optical polyester film
With a thickness of 12 μm~350 μm.
In the present invention, optical polyester film point two layers of A/B wherein accounts for the 3%~50% of general thickness for A layers, preferably 7%~
30%.In the present invention, optical polyester film A/B/A wherein accounts for the 2%~25% of general thickness, preferably 5%~15% for A layers.
In the present invention, optical polyester film A/B/C, wherein A layers of 2%~25%, the C layer for accounting for general thickness account for the 2% of general thickness
~25%, A layers and C layers can be identical thickness, be also possible to different thickness.
In the present invention, optical polyester film A layers and C layers can be the modified poly ester of identical component, be also possible to difference
The modified poly ester of structure.
In the present invention, optical polyester film is obtained by melting extrusion, slab, vertical drawing, horizontal drawing, traction, winding.
It is specific the preparation method comprises the following steps:
By the mixing of B layers of substrate mixed of polyester raw material and A layer, C (surface layer) containing modified poly ester of the invention
Material, is sent to the melting extrusion of corresponding extrusion system.
2, the melt on substrate layer B layers and A or C layers of surface layer is cast on the chill roll of rotation through co-extrusion die head, forms multilayer
Unformed polyester slab.The temperature of chill roll is 15 DEG C~40 DEG C.
3, by the pre- hot-stretch of slab after cooling, longitudinal draw ratio is 2.7~3.5.
4, by after the preheating after longitudinal stretching, cross directional stretch, cross directional stretch ratio is 3.2~4.5.
5, by the film thermal finalization after stretching, rolling after cooling.
Biaxial tension preparation process can be selected in the present invention, can get satisfactory mechanical performance and physical property and smooth
Property.
Embodiment 1
The synthesis of modified poly ester:
By 1000 moles of PTA terephthalic acid (TPA), 1000 moles of ethylene glycol, 300 moles of 4.4- dihydroxydiphenylsulisomer,
After 50 mole of 4.4 '-dihydroxy benaophenonel, 50 grams of antimony glycol, 17.5 grams of trimethyl phosphate are mixed evenly, add
Enter into esterifying kettle, with nitrogen by the air displacement in reaction kettle it is complete after, begin to warm to 235 DEG C, pressure 250KPa is opened
Begin to be esterified, esterification time is about 2.5 hours, and esterification is finished, and is warming up to 265 DEG C, establishes vacuum, and pressure is less than 40Pa, polycondensation time
About 2 hours, the inherent viscosity of slice are as follows: 0.665dl/g.
Pure PET polyester slice is uniformly mixed with average grain diameter for 2.00 μm of silicon dioxide polyester master batches slices
It closes, wherein the content of 2.00 μm of silica Zhan total polyester slice is 50ppm.After this two kinds of raw materials are mixed, as
Then material is sent into single screw extrusion machine in 160 DEG C of crystallizing and dryings by the raw material of sandwich layer (B layers), melt under conditions of 275 DEG C
It squeezes out.
By modified poly ester synthesized in embodiment 1, (wherein 4.4- dihydroxydiphenylsulisomer accounts for about that dihydric alcohol is total mole to be contained
30%, 4.4 '-dihydroxy benaophenonels of amount account for about dihydric alcohol 5%), it is 0.015 μm of silica slipping agent with average grain diameter
Polyester master particle slice, the polyester master particle that average grain diameter is 2.0 μm of silica slice are uniformly mixed, and average grain diameter is finally made
Content for 0.015 μm of silica Zhan total polyester slice is 800ppm, and the silica Zhan that average grain diameter is 2.0 μm is total
The content of polyester slice is 400ppm, and after these three raw materials are mixed, the raw material as surface layer (A layers) is sent into twin-screw and is squeezed
Machine out, melting extrusion under conditions of 270 DEG C.
By above two fused materials by a co-extrusion die head, melt is cast on the chill roll of a rotation, becomes nothing
The three-decker sheet of the A/B/A of sizing.This sheet is preheating to 85 DEG C, it is then vertical to draw 3.0 times, by the thick piece of vertical stretching
Film is sent in transverse drawing mill,, will be in 225 DEG C of at a temperature of thermal finalization by 3.8 times of piece film cross directional stretch under the conditions of 120 DEG C
Afterwards, after 150 DEG C of relaxations, the optical polyester film with a thickness of 188 μm of A/B/A structure is made, the thickness ratio of A/B/A is 8/84/
8。
Embodiment 2~12
With the preparation method of similar embodiment 1, according to the composition of A, C polyester component in table 1, ingredient, the partial size of additive
Size and content, the composition of B layers of polyester component and additive in table 2, prepare the optical polyester film of different-thickness.
Comparative example 1
Pure PET polyester slice is uniformly mixed with average grain diameter for 2.00 μm of silicon dioxide polyester master batches slices
It closes, wherein the content of 2.00 μm of silica Zhan total polyester slice is 50ppm.After this two kinds of raw materials are mixed, as
Then material is sent into single screw extrusion machine in 160 DEG C of crystallizing and dryings by the raw material of sandwich layer (B layers), melt under conditions of 275 DEG C
It squeezes out.
Pure PET polyester slice is sliced with containing the polyester masterbatch that average grain diameter is 0.080 μm of silica slipping agent,
And average grain diameter is uniformly mixed for the polyester slice of 3.0 μm of silica, and 0.080 μm of dioxide-containing silica is finally made to account for polyester
It is sliced content 600ppm, 3.0 μm of dioxide-containing silicas account for amount of polyester slice 150ppm, are (A layers) of surface layer feeding by mixture
To double screw extruder, melting extrusion under conditions of 280 DEG C.
Above two fused materials are got to know by co-extrusion, melt are cast on the chill roll of a rotation, are become without fixed
The sheet of the three-layer co-extruded structure of the A/B/A of type, sheet is used to be prepared with manufacturing process as embodiment one kind, and thickness is made
The optical polyester film that degree is 250 μm, the thickness proportion of A/B/A structural membrane are 5/90/5.
Comparative example 2
Pure PET polyester slice is uniformly mixed with average grain diameter for 2.00 μm of silicon dioxide polyester master batches slices
It closes, wherein the content of 2.00 μm of silica Zhan total polyester slice is 50ppm.After this two kinds of raw materials are mixed, as
Then material is sent into single screw extrusion machine in 160 DEG C of crystallizing and dryings by the raw material of sandwich layer (B layers), melt under conditions of 275 DEG C
It squeezes out.
By isophthalate modified PET polyester slice with containing average grain diameter be 2.0 μm of silica polyester cut
Piece is uniformly mixed, and dioxide-containing silica accounts for polyester slice content 600ppm, and mixture is sent to twin-screw for surface layer (A layers) and is squeezed
Machine out, melting extrusion under conditions of 280 DEG C.
By above two material, the polyester film with a thickness of 188 μm, A/B/A is made in mode identical with comparative example 1
The thickness proportion of structural membrane is 5/90/5.
Table one
Table 2
Effect is embodied
The detection method of surface tension: Schumann dyne pen test.
The detection method of surface hardness: GBT6739-1996 film pencil hardness test, 750g.
The detection method of inherent viscosity: GBT14190-2008 (5.1.1).
Claims (9)
1. a kind of optical polyester film, the optical polyester film uses single layer A, two layers of A/B, three layers of A/B/A or A/B/C co-extrusion
Biaxially oriented polyester film, it is characterised in that: A layers or A, C layers containing by the modified polyester of 4.4 '-dihydroxydiphenylsulisomers or by
The modified polyester of 4.4 '-dihydroxydiphenylsulisomers and 4.4 '-dihydroxy benaophenonels, the optical polyester film with a thickness of 12 μm
~350 μm；
The molar content that the 4.4 '-dihydroxydiphenylsulisomer accounts for dihydric alcohol is 5%~55%, the 4.4 '-dihydroxy hexichol first
The molar content that ketone accounts for dihydric alcohol is 0%~10%, and ethylene glycol accounts for the 35%~95% of glycol content.
2. optical polyester film according to claim 1, it is characterised in that: the modified poly ester in A, C layer described is used
Dihydric alcohol be 4.4 '-dihydroxydiphenylsulisomers, 4.4 '-dihydroxy benaophenonels, ethylene glycol；4.4 '-the dihydroxydiphenylsulisomer
Accounting for dihydric alcohol molar content is 5%~30%.
3. optical polyester film according to claim 2, it is characterised in that: the modified poly ester in A, C layer described also adds
Acid, the acid are one or both of terephthalic acid (TPA) and M-phthalic acid, wherein the content of M-phthalic acid accounts for acid mole
Content 0%~30%, terephthalic acid (TPA) account for the 70%~100% of sour molar content.
4. optical polyester film according to claim 3, it is characterised in that: the optical polyester film uses single layer structure
A, single layer structure with a thickness of 12 μm~350 μm.
5. optical polyester film according to claim 1, it is characterised in that: the optical polyester film uses double-layer structure
A/B wherein accounts for the 3%~50% of general thickness for A layers.
6. optical polyester film according to claim 1, it is characterised in that: the optical polyester film uses three-decker
A/B/A wherein accounts for the 2%~25% of general thickness for A layers.
7. optical polyester film according to claim 1, it is characterised in that: the optical polyester film uses three-decker
A/B/C, wherein A layers of 2%~25%, the C layer for accounting for general thickness account for 2%~25%, the A layer of general thickness and C thickness degree can be with
It is identical, it can also be different.
8. optical polyester film according to claim 1, it is characterised in that: described optical polyester film A layers and C layers can be with
It is the modified poly ester of identical component, is also possible to the modified poly ester of heterogeneity.
9. optical polyester film described in any one of -8 rights according to claim 1, it is characterised in that: the optics polyester
Film is obtained by melting extrusion, slab, vertical drawing, horizontal drawing, traction and winding.
Priority Applications (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086306A (en) * | 2019-12-26 | 2020-05-01 | 合肥乐凯科技产业有限公司 | High-stiffness optical polyester film |
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| CN110920198A (en) * | 2019-12-18 | 2020-03-27 | 杭州华塑实业股份有限公司 | Rare earth nanometer heat-insulating polyester film |
| CN111070841B (en) * | 2019-12-26 | 2021-10-08 | 合肥乐凯科技产业有限公司 | Optical polyester film |
| CN112644134A (en) * | 2019-12-27 | 2021-04-13 | 富维薄膜（山东）有限公司 | Laser mould pressing polyester film |
| CN111806009A (en) * | 2020-07-15 | 2020-10-23 | 王福 | Optical polyester film |
| CN112959781B (en) * | 2020-10-09 | 2022-01-11 | 江苏双星彩塑新材料股份有限公司 | Optical film substrate and preparation method thereof |
| CN112876661B (en) * | 2021-01-22 | 2022-10-18 | 佛山杜邦鸿基薄膜有限公司 | Modified polyester and polyester film with high surface roughness thereof |
| CN114103364A (en) * | 2021-12-07 | 2022-03-01 | 合肥乐凯科技产业有限公司 | Optical polyester film and preparation method thereof |
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| CN1735508A (en) * | 2003-01-06 | 2006-02-15 | 东丽株式会社 | Laminated film and manufacture method thereof |
| CN103131139A (en) * | 2011-11-29 | 2013-06-05 | 东丽纤维研究所（中国）有限公司 | Polyester film and application thereof |
| CN103261266A (en) * | 2010-12-24 | 2013-08-21 | 富士胶片株式会社 | Polyester polymer, resin composition, molded product, and film |
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| AU783566B2 (en) * | 2000-03-22 | 2005-11-10 | Victrex Manufacturing Limited | Ion-exchange materials |
| JP5524719B2 (en) * | 2009-05-29 | 2014-06-18 | 三洋化成工業株式会社 | Toner binder and toner composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1735508A (en) * | 2003-01-06 | 2006-02-15 | 东丽株式会社 | Laminated film and manufacture method thereof |
| CN103261266A (en) * | 2010-12-24 | 2013-08-21 | 富士胶片株式会社 | Polyester polymer, resin composition, molded product, and film |
| CN103131139A (en) * | 2011-11-29 | 2013-06-05 | 东丽纤维研究所（中国）有限公司 | Polyester film and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111086306A (en) * | 2019-12-26 | 2020-05-01 | 合肥乐凯科技产业有限公司 | High-stiffness optical polyester film |
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