CN110181922A - A kind of high high fog diffusion barrier and preparation method thereof thoroughly of one-pass molding - Google Patents
A kind of high high fog diffusion barrier and preparation method thereof thoroughly of one-pass molding Download PDFInfo
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- 238000009792 diffusion process Methods 0.000 title claims abstract description 86
- 230000004888 barrier function Effects 0.000 title claims abstract description 42
- 238000000465 moulding Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 56
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000008187 granular material Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000012792 core layer Substances 0.000 claims abstract description 5
- 239000002344 surface layer Substances 0.000 claims abstract description 4
- 229920000728 polyester Polymers 0.000 claims description 35
- 239000002994 raw material Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000005202 decontamination Methods 0.000 claims description 5
- 230000003588 decontaminative effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 2
- 238000003892 spreading Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 description 18
- 238000002425 crystallisation Methods 0.000 description 11
- 230000008025 crystallization Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 6
- 239000002216 antistatic agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000009738 saturating Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004596 additive masterbatch Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229920006267 polyester film Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/102—Oxide or hydroxide
-
- 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
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/21—Anti-static
-
- 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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of high high fog diffusion barriers and preparation method thereof thoroughly of one-pass molding, the diffusion barrier includes ABC three-decker, the surface layer for film described A layers and C layers, diffusion openings agent master batch is added in surface layer to reach heatproof, damage resistant, the effect of diffusion, antistatic master granule is added in A layers and C layers simultaneously makes film have antistatic property, described B layers is intermediate core layer, the diffusion master batch being added in B layers, which contains high silica thoroughly and high organosilicon spread powder thoroughly, can make film have diffusion effect and high transparency effect, the diffusion barrier is prepared by three-layer co-extruded technique.It is low that the diffusion barrier will not generate VOC gas, environment friendly and pollution-free, high production efficiency, processing cost.
Description
Technical field
The present invention relates to technical field of polymer material processing, more particularly to a kind of high saturating high fog of one-pass molding
Diffusion barrier and preparation method thereof.
Background technique
In recent years, various novel flat-plate display technologies such as liquid crystal display (LCD), plasma shows that (PDP), organic light emission are aobvious
Show increasing rapidly for the just experience global range such as (OLED).In present FPD industry, liquid crystal display (LCD) is occupied absolutely
The principal status of public economy, oneself be widely used in producing it is various show skilful product, such as LCD TV, monitor, mobile phone, it is computer, various wide
It accuses in the fields such as display board, navigation product, oneself is become with most universal, industrialization level highest, development is most mature, develops
A kind of most rapid flat panel display.
LCD shows that, all using LED as change source, LED reveals the light of source sending by leading plate and then passes through at present
Optical diffusion film is converted into soft uniform area source, then can ingeniously enter the man-machine visual field by the optically focused work of pole eyeglass.By
This can be seen that optical diffusion film conversion point light source played the role of it is vital.
But existing diffusion barrier, mainly on transparent polyester film by coating by way of, grain will be spread
Son, antistatic agent mix, after mixing evenly with acrylic acid adhesive, transparent film surface are coated in, to form diffusion effect；
This kind of production method is needed by being coated with twice, and processing cost is high, material loss is big, and can be generated to environment using adhesive
Pollution；Secondly, the diffusion barrier produced by coating method, if surface is scratched, diffusion coating is easy to fall off；Third, logical
The mode diffusion particle for crossing coating may be unevenly distributed, and cause film luminance nonuniformity.
Therefore, how to provide and a kind of do not need gluing, do not generate VOC gas, can recycle, the expansion of high production efficiency
Dissipate the problem of film and preparation method thereof is those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the present invention provides it is a kind of it is environment friendly and pollution-free, production cost is low, have heatproof, scratch-resistant, antistatic effect
The high high fog diffusion barrier and preparation method thereof thoroughly of the one-pass molding of fruit.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of high high fog diffusion barrier, including ABC three-decker thoroughly of one-pass molding, A layers described, the C layers of surface layer for film, by
Polyester slice, diffusion openings agent master batch (KSM-21) and antistatic master granule (KJD-10) are prepared, and described B layers is intermediate core
Layer, is prepared by diffusion master batch (KSM-20) and polyester slice.
Preferably, the described A layers 10-20% for accounting for diffusion barrier overall thickness, described B layers accounts for the 60%- of diffusion barrier overall thickness
80%, described C layers accounts for the 10-20% of diffusion barrier overall thickness.
Preferably, in described A layers and C layers each material adding proportion are as follows: diffusion openings agent master batch (KSM-21) 20%-
80%, antistatic master granule (KJD-10) 1%-3%, polyester slice 19%-79%.
Preferably, each material adding proportion in B layers described are as follows: diffusion master batch (KSM-20) 10%-20%, polyester slice
80%-90%.
Preferably, the diffusion master batch (KSM-20) is by high silica thoroughly and high organosilicon spread powder and polyester bottle slice thoroughly
It is prepared, the high dioxide-containing silica thoroughly is 5wt%-15wt%, and partial size is 0.5-3 μm.
Preferably, the diffusion openings agent master batch (KSM-21) is prepared by high super cool sliding silicon dioxide powder thoroughly and polyester bottle slice
It forms, the high super cool sliding silica powder content thoroughly is 1wt%-3wt%, and partial size is 2-4 μm.
Preferably, the antistatic master granule (KJD-10) is prepared by antisatic additive and polyester bottle slice, described anti-
Electrostatic additive level is 5wt%-10wt%.
A kind of preparation method of the high high fog diffusion barrier thoroughly of one-pass molding, comprising the following steps:
By three-layer co-extruded technology by raw material by feeding intake, crystallizing, drying, extruder melting, slab, it is vertical draw, horizontal drawing,
Sizing, winding, cutting, is packaged traction, and whole process film is in cleaning shop, so that it is high thoroughly to obtain one-pass molding
High fog diffusion barrier.
A kind of preparation method of the high high fog diffusion barrier thoroughly of one-pass molding, the specific steps are as follows:
(1) feedstock transportation pipeline is cleaned out, changes 15 μm of precision filters below, reaches each area decontamination in workshop
To 10000 grades or less；
(2) it is added in host B layer, will spread using diffusion master batch (KSM-20) and polyester slice as intermediate core layer raw material
Opening agent master batch (KSM-21), antistatic master granule (KJD-10) and polyester slice are added to A layers of subsidiary engine as film top layer raw material
In C layers；
(3) diffusion master batch (KSM-20) of host B layer and polyester slice are respectively by feeding intake, crystallizing and drying；
(4) the host B layer raw material after drying and the raw material in subsidiary engine are melted by extruder, then filter filters,
Melt after filtering converges in die head, is cooled to slab through cold drum after converging；
(5) slab is subjected to longitudinal stretching, cross directional stretch and sizing, then using traction, winding, cutting and is packaged it
After obtain the high high fog diffusion barrier thoroughly.
Preferably, crystallization temperature is 140-160 DEG C in the step (3), and air passes through micron order dedusting when crystallization, dry
Temperature is 140-150 DEG C, and air passes through micron order dedusting when dry.
Preferably, melting temperature is 280 DEG C in an extruder in the step (4), and Filter Precision is 10-25 μm, cold
But temperature is 25-35 DEG C, and cold bulging regional air is by purification.
Preferably, longitudinal stretching first passes through MDO and is preheating to 70-80 DEG C in the step (5), longitudinally draws at 80-90 DEG C
It stretches, is then cooled to 30 DEG C, MDO air is by purification, and by TDO cross directional stretch, draft temperature is 115 DEG C, and setting temperature is
235-245℃.
Preferably, air passes through purification in traction, winding and cutting process in the step (5).
It can be seen via above technical scheme that compared with prior art, the invention has the following beneficial effects:
1. the present invention constructs upper, middle and lower using the two-way asynchronous three-layer co-extruded BOPET production line of stretching of 6.7 meters of wide cuts of import
Three-layer protection membrane structure, wherein silicon dioxide master is respectively adopted upper and lower two layers to achieve the effect that heatproof, damage resistant, diffusion,
Resistance to migration antisatic additive master batch is added in upper and lower layer simultaneously makes film that there is antistatic property surface to be not easy to be infected with dust
Equal particles, middle layer is different-grain diameter, silica, high organic silicon granule thoroughly make film with diffusion to the height of different refractivity thoroughly
Effect and high transparency effect.The high high fog diffusion barrier thoroughly of one-pass molding is once prepared by stretch processes, by adjusting
Draw ratio and setting temperature further increase the temperature tolerance of film, and for film thickness allowance control within 2%, film is inside and outside without black
Point.
2. diffusion barrier provided by the invention does not need gel, do not generate VOC gas, there is high production efficiency, production cost
The advantages that low, environment friendly and pollution-free.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the high high fog diffusion barrier thoroughly of one-pass molding prepared by the present invention.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the present invention is clearly and completely described, it is clear that
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The scope of protection of the invention.
Embodiment 1
1. 5% partial size is mixed and made into diffusion with organosilicon spread powder and polyester bottle slice powder in 0.5 μm of saturating silica of height
Master batch (KSM-20)；
2. in 2 μm of height, super cool sliding silicon dioxide powder and polyester bottle slice powder are mixed and made into diffusion openings agent mother thoroughly by 1% partial size
Grain (KSM-21)；
3. 5% antistatic agent and polyester bottle slice powder are mixed and made into antistatic master granule (KJD-10)；
4. feedstock transportation pipeline is cleaned out；
5. changing 15 μm of precision filters below；
6. each area decontamination in workshop reaches 10000 grades or less；
7. in host B layer addition 10% diffusion master batch (KSM-20) and 90% polyester slice；
8. 1% antistatic master granule is added in A layers of subsidiary engine and C layers of 20% diffusion openings agent master batch (KSM-21) of addition
(KJD-10), 79% polyester slice；
9. the big bright PET chips of host B layer and diffusion master batch are respectively by feeding intake, crystallizing and drying；
10. crystallization: crystallization temperature control air at 140 DEG C, crystallization passes through micron order dedusting；
11. dry: drying temperature is controlled at 140 DEG C, and air passes through micron order dedusting when dry；
12. raw material passes through 280 DEG C of extruder meltings；
13. being filtered by filter；Precision is at 10 μm；
14. the melt of host B, subsidiary engine A, subsidiary engine C converge in die head；
15. being cooled into slab through cold drum；Cooling temperature is at 25 DEG C；Cold stock regional air is by purification；
16. preheating 70 DEG C by MDO, 80 DEG C of longitudinal stretchings；It is 30 DEG C cooling；MDO air is by purification；
17.TDO cross directional stretch, 115 DEG C of draft temperature, 235 DEG C of setting temperature；
18. by traction thickness measuring, surface dust；Air is drawn by purification；
19. winder is wound, winding air is by purification；
20. cutting, cutting air is by purification；
21. being packaged, the diffusion barrier is obtained.
Embodiment 2
1. 15% partial size is mixed and made into diffusion mother with organosilicon spread powder and polyester bottle slice powder in 3 μm of saturating silica of height
Grain (KSM-20)；
2. in 4 μm of height, super cool sliding silicon dioxide powder and polyester bottle slice powder are mixed and made into diffusion openings agent mother thoroughly by 3% partial size
Grain (KSM-21)；
3. 10% antistatic agent and polyester bottle slice powder are mixed and made into antistatic master granule (KJD-10)；
4. feedstock transportation pipeline is cleaned out；
5. changing 15 μm of precision filters below；
6. each area decontamination in workshop reaches 10000 grades or less；
7. in host B layer addition 20% diffusion master batch (KSM-20) and 80% polyester slice；
8. 1% antistatic master granule is added in A layers of subsidiary engine and C layers of 80% diffusion openings agent master batch (KSM-21) of addition
(KJD-10), 19% polyester slice；
9. the big bright PET chips of host B layer and diffusion master batch are respectively by feeding intake, crystallizing and drying；
10. crystallization: crystallization temperature control air at 160 DEG C, crystallization passes through micron order dedusting；
11. dry: drying temperature is controlled at 150 DEG C, and air passes through micron order dedusting when dry；
12. raw material passes through 280 DEG C of extruder meltings；
13. being filtered by filter；Precision is at 25 μm；
14. the melt of host B, subsidiary engine A, subsidiary engine C converge in die head；
15. being cooled into slab through cold drum；Cooling temperature is at 35 DEG C；Cold stock regional air is by purification；
16. preheating 70 DEG C by MDO, 80 DEG C of longitudinal stretchings；It is 30 DEG C cooling；MDO air is by purification；
17.TDO cross directional stretch, 115 DEG C of draft temperature, 245 DEG C of setting temperature；
18. by traction thickness measuring, surface dust；Air is drawn by purification；
19. winder is wound, winding air is by purification；
20. cutting, cutting air is by purification；
21. being packaged, the diffusion barrier is obtained.
Embodiment 3
1. 10% partial size is mixed and made into diffusion mother with organosilicon spread powder and polyester bottle slice powder in 2 μm of saturating silica of height
Grain (KSM-20)；
2. in 3 μm of height, super cool sliding silicon dioxide powder and polyester bottle slice powder are mixed and made into diffusion openings agent mother thoroughly by 2% partial size
Grain (KSM-21)；
3. 5% antistatic agent and polyester bottle slice powder are mixed and made into antistatic master granule (KJD-10)；
4. feedstock transportation pipeline is cleaned out；
5. changing 15 μm of precision filters below；
6. each area decontamination in workshop reaches 10000 grades or less；
7. in host B layer addition 15% diffusion master batch (KSM-20) and 85% polyester slice；
8. 3% antistatic master granule is added in A layers of subsidiary engine and C layers of 20% diffusion openings agent master batch (KSM-21) of addition
(KJD-10), 77% polyester slice；
9. the big bright PET chips of host B layer and diffusion master batch are respectively by feeding intake, crystallizing and drying；
10. crystallization: crystallization temperature control air at 150 DEG C, crystallization passes through micron order dedusting；
11. dry: drying temperature is controlled at 145 DEG C, and air passes through micron order dedusting when dry；
12. raw material passes through 280 DEG C of extruder meltings；
13. being filtered by filter；Precision is at 15 μm；
14. the melt of host B, subsidiary engine A, subsidiary engine C converge in die head；
15. being cooled into slab through cold drum；Cooling temperature is at 30 DEG C；Cold stock regional air is by purification；
16. preheating 70 DEG C by MDO, 80 DEG C of longitudinal stretchings；It is 30 DEG C cooling；MDO air is by purification；
17.TDO cross directional stretch, 115 DEG C of draft temperature, 240 DEG C of setting temperature；
18. by traction thickness measuring, surface dust；Air is drawn by purification；
19. winder is wound, winding air is by purification；
20. cutting, cutting air is by purification；
21. being packaged, the diffusion barrier is obtained.
Embodiment 4
Diffusion barrier obtained by embodiment 1 is tested, diffusion film thickness is surveyed according to 6672 method of GB/T
Examination, tests the tensile strength of diffusion barrier, elasticity modulus and elongation at break according to 1040.3 method of GB/T, and test is expanded
The percent thermal shrinkage for dissipating film 30min at 150 DEG C, is tested according to mist degree and light transmittance of 2410 method of GB/T to diffusion barrier.
Test result is referring to table 1:
1 diffusion barrier test result of table
As it can be seen from table 1 the diffusion barrier tensile strength prepared using preparation method of the present invention, extension at break
The performances such as rate and percent thermal shrinkage are better than standard, while mist degree with higher and light transmittance.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of high high fog diffusion barrier thoroughly of one-pass molding, which is characterized in that including ABC three-decker, A layers described, C layers is film
Surface layer, be prepared by polyester slice, diffusion openings agent master batch and antistatic master granule, described B layers be intermediate core layer, by spreading
Master batch and polyester slice are prepared.
2. a kind of high high fog diffusion barrier thoroughly of one-pass molding according to claim 1, which is characterized in that described A layers accounts for diffusion
The 10-20% of film overall thickness, described B layers accounts for the 60%-80% of diffusion barrier overall thickness, and described C layers accounts for the 10- of diffusion barrier overall thickness
20%.
3. a kind of high high fog diffusion barrier thoroughly of one-pass molding according to claim 1 or 2, which is characterized in that described A layers and C
The adding proportion of each material in layer are as follows: diffusion openings agent master batch 20%-80%, antistatic master granule 1%-3%, polyester slice
19%-79%.
4. a kind of high high fog diffusion barrier thoroughly of one-pass molding according to claim 1 or 2, which is characterized in that each in B layers described
Material adding proportion are as follows: diffusion master batch 10%-20%, polyester slice 80%-90%.
5. a kind of high high fog diffusion barrier thoroughly of one-pass molding according to claim 3, which is characterized in that the diffusion openings agent
Master batch is prepared by silicon dioxide powder and polyester bottle slice powder, and the silica powder content is 1wt%-3wt%, partial size 2-
4μm。
6. a kind of high high fog diffusion barrier thoroughly of one-pass molding according to claim 3, which is characterized in that the antistatic master granule
It is prepared by antisatic additive and polyester bottle slice powder, the antisatic additive content is 5wt%-10wt%.
7. a kind of high high fog diffusion barrier thoroughly of one-pass molding according to claim 4, which is characterized in that the diffusion master batch by
Silica, organosilicon spread powder and polyester bottle slice powder are prepared, and the dioxide-containing silica is 5wt%-15wt%, partial size
It is 0.5-3 μm.
8. a kind of preparation method of the high high fog diffusion barrier thoroughly of one-pass molding as described in claim 1-7, which is characterized in that including
Following steps:
Raw material are passed through by three-layer co-extruded technology and feeds intake, crystallize, drying, extruder melting, slab, vertical drawing, horizontal drawing, determining
Type, traction, winding, cutting, packing, and whole process film is in cleaning shop, so that it is high thoroughly high to obtain one-pass molding
Mist diffusion barrier.
9. a kind of preparation method of the high high fog diffusion barrier thoroughly of one-pass molding according to claim 8, which is characterized in that specific
Steps are as follows:
(1) feedstock transportation pipeline is cleaned out, changes 15 μm of precision filters below, reaches each area decontamination in workshop
10000 grades or less；
(2) be added in host B layer using diffusion master batch and polyester slice as intermediate core layer raw material, by diffusion openings agent master batch,
Antistatic master granule and polyester slice are added in A layers and C layers of subsidiary engine as film top layer raw material；
(3) diffusion master batch of host B layer and polyester slice are respectively by feeding intake, crystallizing and drying；
(4) the host B layer raw material after drying and the raw material in subsidiary engine are melted by extruder, then filter filters, and passes through
Melt after filter converges in die head, is cooled to slab through cold drum after converging；
(5) slab is subjected to longitudinal stretching, cross directional stretch and sizing, is then obtained later using traction, winding, cutting and packing
Obtain the high high fog diffusion barrier thoroughly.
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