CN108467581A - A kind of dumb light milky polyamide film and preparation method thereof - Google Patents
A kind of dumb light milky polyamide film and preparation method thereof Download PDFInfo
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- CN108467581A CN108467581A CN201810300583.8A CN201810300583A CN108467581A CN 108467581 A CN108467581 A CN 108467581A CN 201810300583 A CN201810300583 A CN 201810300583A CN 108467581 A CN108467581 A CN 108467581A
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- Prior art keywords
- surface layer
- dumb light
- polyamide film
- light milky
- polyamide
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- 239000004952 Polyamide Substances 0.000 title claims abstract description 52
- 229920002647 polyamide Polymers 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 39
- 239000010410 layer Substances 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000012463 white pigment Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 11
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 229960001763 zinc sulfate Drugs 0.000 claims description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical group CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims 1
- 239000005642 Oleic acid Substances 0.000 claims 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 235000010215 titanium dioxide Nutrition 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- 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
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of dumb light milky polyamide film and preparation method thereof, three-decker that the dumb light milky polyamide film is made of surface layer 1, sandwich layer, surface layer 2.Wherein, by percentage to the quality, the surface layer 1 and surface layer 2 respectively include 5%~15% white pigment, 76%~91.8% polyamide, 3%~8% light diffusing agent, 0.1%~0.5% opening agent and 0.1%~0.5% slipping agent；The polyamide that the sandwich layer is 100%.The present invention also provides the preparation methods of dumb light milky polyamide film.
Description
Technical field
The invention belongs to flexible packing material fields, and in particular to a kind of dumb light milky polyamide film and its preparation side
Method.
Background technology
Currently, polyamide film is because of its excellent paracentesis resistance and barrier properties for gases, excellent oil resistant and chemical solvent
And temperature use scope it is wide the advantages that, be widely used in the fields such as commodity packaging, electronic product packaging, food packaging.
With the raising of people's quality of the life, Packaging Color and presentation property aspect to product have higher requirement.
The colored packaging of the overwhelming majority is all to print to obtain by ink now, and ink printing generally requires a large amount of organic molten
How agent, therefore will produce a large amount of organic volatile reduces the discharge of VOC in environmental consciousness more and more valued today
It is technical staff one of to solve the problems, such as.Matte film can give a kind of noble, dim aesthetic feeling of consumer, but existing
Technology obtains required matte effect mainly by way of being coated with dumb light ink on base material, and this equally brings
A large amount of organic volatile brings challenge to environmental protection.Dumb light milky polyamides is prepared by the method for being coextruded biaxial tension
Amine film can be follow-up color printing enterprise, eliminate white printing and dumb light coating this two procedures, reduce register trouble
Risk decreases the discharge of VOC.
Invention content
The scope of the present invention is only by claims defined, not by the old of this section invention content in any degree
It states and is limited.
In view of the drawbacks of the prior art, the present invention provides a kind of dumb light milky polyamide film and preparation method thereof,
Dumb light milky polyamide film provides haze, the performance of high whiteness while ensureing mechanical property, is consumed meeting
While person's aesthetic requirement, and reduce manufacturing procedure for downstream color printing enterprise, saves processing cost.
To achieve the goals above, the present invention is achieved by the following technical solutions：
A kind of dumb light milky polyamide film and preparation method thereof, the dumb light milky polyamide film is by table
The three-decker that layer 1, sandwich layer, surface layer 2 form.By mass percentage, the surface layer 1 and surface layer 2 include 5%~15%
White pigment, 76%~91.8% polyamide, 3%~8% light diffusing agent, 0.1%~0.5% opening agent and
0.1%~0.5% slipping agent；The polyamide that the sandwich layer is 100%.
The dumb light milky polyamide film, which is characterized in that the thickness on the surface layer 1 and surface layer 2 be 4~
The thickness of 16um, sandwich layer are 2~8um.
The dumb light milky polyamide film, which is characterized in that the white pigment is titanium dioxide, zinc sulfate and sulphur
One or more of compositions of sour barium.
The dumb light milky polyamide film, which is characterized in that the light diffusing agent is by nano barium sulfate, titanium dioxide
One or two kinds of compositions of silicon, median (D50) it is 2~5um.
The dumb light milky polyamide film, which is characterized in that the opening agent is by talcum powder, diatomite, oxidation
One or more of compositions of aluminium, median (D50) it is 2~5um.
The dumb light milky polyamide film, which is characterized in that the slipping agent by oleamide, erucyl amide,
One or more of stearic amide forms.
The dumb light milky polyamide film, preparation method carry out according to the following steps：
The first step：Each component in surface layer 1 and surface layer 2 is mixed respectively in proportion, and is disperseed by homogenizer
Uniformly.
Second step：By the raw material on surface layer 1, surface layer 2 and sandwich layer respectively by respective extruder melting extrusion, by T-type
Die head flows out, and non-stretched sheet material is cooled into chilling roller, and wherein the temperature of chilling roller is 20~30 DEG C, the thickness of non-stretched sheet material
Degree is 100~240um.
Third walks：The heating of non-stretched sheet material is synchronized into stretching, wherein draft temperature is 170~200 DEG C, stretching ratio
For 2.5*2.5~3.2*3.2.
4th step：Film after stretching is subjected to thermal finalization, wherein setting temperature is 180~210 DEG C, setting time 30
~100s, finally obtains the dumb light milky polyamide film, and film thickness is 10~40um.
Description of the drawings
Fig. 1 is the structural schematic diagram of dumb light milky polyamide film of the present invention.
Specific implementation mode
Using specific embodiment below, the present invention is described in detail, to facilitate related technical personnel to further understand this hair
It is bright.Under the premise of present inventive concept, the improvement made all belongs to the scope of protection of the present invention.
The preparation of dumb light milky polyamide film of the present invention carries out according to the following steps：
The first step：Each component in surface layer 1 and surface layer 2 is mixed respectively in proportion, and is disperseed by homogenizer
Uniformly.
Second step：By the raw material on surface layer 1, surface layer 2 and sandwich layer respectively by respective extruder melting extrusion, by T-type
Die head flows out, and non-stretched sheet material is cooled into chilling roller, and wherein the temperature of chilling roller is 20~30 DEG C, the thickness of non-stretched sheet material
Degree is 100~240um.
Third walks：The heating of non-stretched sheet material is synchronized into stretching, wherein draft temperature is 170~200 DEG C, stretching ratio
For 2.5*2.5~3.2*3.2.
4th step：Film after stretching is subjected to thermal finalization, wherein setting temperature is 180~210 DEG C, setting time 30
~100s, finally obtains the dumb light milky polyamide film, and film thickness is 10~40um.
Embodiment 1
The three-decker that the dumb light milky polyamide film is made of surface layer 1, sandwich layer, surface layer 2.
By mass percentage, the surface layer 1 and surface layer 2 at being grouped into:5% titanium dioxide, 89.8% it is poly-
Amide resin, 5% silica (D50For 3.19um), 0.1% talcum powder and 0.1% oleamide.
The polyamide that the sandwich layer is 100%.
The thickness ratio of each layer is 1:2:1.
Embodiment 2
The three-decker that the dumb light milky polyamide film is made of surface layer 1, sandwich layer, surface layer 2.
By mass percentage, the surface layer 1 and surface layer 2 at being grouped into:10% zinc sulfate and barium sulfate
(mass percent is mixture：Zinc sulfate 35%, barium sulfate 65%), 86.8% polyamide, 8% silica
(D50For 3.19um), 0.5% aluminium oxide and 0.1% erucyl amide.
The polyamide that the sandwich layer is 100%.
The thickness ratio of each layer is 3:5:3.
Embodiment 3
The three-decker that the dumb light milky polyamide film is made of surface layer 1, sandwich layer, surface layer 2.
By mass percentage, the surface layer 1 and surface layer 2 at being grouped into:15% titanium dioxide, 86.8% it is poly-
Amide resin, 8% nano barium sulfate (D50For 3.44um), 0.5% diatomite and 0.5% stearic amide.
The polyamide that the sandwich layer is 100%.
The thickness ratio of each layer is 2:1:2.
Comparative example 1
Three layers are 100% polyamide casting film-forming, and then synchronized stretching, sizing etc. obtain nylon membrane again, thick
Spend 25um.
Comparative example 2
Commercially available 25um delustrings polyamide film.
The present invention is tested the film correlated performance in the various embodiments described above and comparative example, and specific data details are shown in
Table 1.
As seen from the table, the polyamides of the dumb light milky polyamide film and produced in conventional processes that are produced using the present invention
Amine film is compared with commercially available delustring polyamide film, and the dumb light milky polyamide film that the present invention is produced is ensureing mechanical property
In the case of energy, there is higher mist degree and whiteness and lower light transmittance.
1 each embodiment of table, comparative example evaluation table
* light transmittance is represented to be unable to measure greatly very much.
Claims (7)
1. a kind of dumb light milky polyamide film, which is characterized in that the dumb light milky polyamide film is by surface layer
1, the three-decker that sandwich layer, surface layer 2 form；By mass percentage, the surface layer 1 and surface layer 2 respectively include 5%~15%
White pigment, 76%~91.8% polyamide, 3%~8% light diffusing agent, 0.1%~0.5% opening agent and
0.1%~0.5% slipping agent；The polyamide that the sandwich layer is 100%.
2. dumb light milky polyamide film according to claim 1, which is characterized in that the thickness on the surface layer 1 and surface layer 2
Degree is 4~16um, and the thickness of sandwich layer is 2~8um, and overall film thickness is 10~40um.
3. dumb light milky polyamide film according to claim 1, which is characterized in that the white pigment is titanium white
One or more of compositions of powder, zinc sulfate and barium sulfate.
4. dumb light milky polyamide film according to claim 1, which is characterized in that the light diffusing agent is by nano-sulfur
One or two kinds of compositions of sour barium, silica, median (D50) it is 2~5um.
5. dumb light milky polyamide film according to claim 1, which is characterized in that the opening agent by talcum powder,
One or more of compositions of diatomite, aluminium oxide, median (D50) it is 2~5um.
6. dumb light milky polyamide film according to claim 1, which is characterized in that the slipping agent is by oleic acid acyl
One or more of amine, erucyl amide, stearic amide form.
7. dumb light milky polyamide film according to claim 1, preparation method carry out according to the following steps：
The first step：Each component in surface layer 1 and surface layer 2 is mixed respectively in proportion, and is uniformly dispersed by homogenizer.
Second step：By the raw material on surface layer 1, surface layer 2 and sandwich layer respectively by respective extruder melting extrusion, by T-shaped mould head
Outflow, and non-stretched sheet material is cooled into chilling roller, wherein the temperature of chilling roller is 20~30 DEG C, and the thickness of non-stretched sheet material is
100~240um.
Third walks：The heating of non-stretched sheet material is synchronized into stretching, wherein draft temperature is 170~200 DEG C, and stretching ratio is
2.5*2.5~3.2*3.2.
4th step：By after stretching film carry out thermal finalization, wherein setting temperature be 180~210 DEG C, setting time be 30~
100s, finally obtains the dumb light milky polyamide film, and film thickness is 10~40um.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810300583.8A CN108467581A (en) | 2018-04-04 | 2018-04-04 | A kind of dumb light milky polyamide film and preparation method thereof |
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| CN201810300583.8A CN108467581A (en) | 2018-04-04 | 2018-04-04 | A kind of dumb light milky polyamide film and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109517372A (en) * | 2018-11-13 | 2019-03-26 | 湖南工业大学 | A kind of matt nylon film and preparation method thereof |
| CN109825076A (en) * | 2019-01-31 | 2019-05-31 | 厦门长塑实业有限公司 | A kind of low water absorption, polyamide film of high delustring and preparation method thereof |
| CN110564142A (en) * | 2019-09-20 | 2019-12-13 | 厦门长塑实业有限公司 | Black matte polyamide film for lithium battery outer package and preparation method thereof |
| CN112226076A (en) * | 2020-09-10 | 2021-01-15 | 厦门长塑实业有限公司 | Ultra-high smooth polyamide master batch, polyamide film and preparation method thereof |
| CN113771462A (en) * | 2021-08-26 | 2021-12-10 | 厦门长塑实业有限公司 | Biaxially oriented matt nylon film and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109517372A (en) * | 2018-11-13 | 2019-03-26 | 湖南工业大学 | A kind of matt nylon film and preparation method thereof |
| CN109517372B (en) * | 2018-11-13 | 2021-03-02 | 湖南工业大学 | A kind of matte nylon film and preparation method thereof |
| CN109825076A (en) * | 2019-01-31 | 2019-05-31 | 厦门长塑实业有限公司 | A kind of low water absorption, polyamide film of high delustring and preparation method thereof |
| CN110564142A (en) * | 2019-09-20 | 2019-12-13 | 厦门长塑实业有限公司 | Black matte polyamide film for lithium battery outer package and preparation method thereof |
| CN110564142B (en) * | 2019-09-20 | 2021-09-21 | 厦门长塑实业有限公司 | Black matte polyamide film for lithium battery outer package and preparation method thereof |
| CN112226076A (en) * | 2020-09-10 | 2021-01-15 | 厦门长塑实业有限公司 | Ultra-high smooth polyamide master batch, polyamide film and preparation method thereof |
| CN113771462A (en) * | 2021-08-26 | 2021-12-10 | 厦门长塑实业有限公司 | Biaxially oriented matt nylon film and preparation method and application thereof |
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Application publication date: 20180831 |