CN109094161A - The high plastic film and preparation method thereof of a kind of easy corona, flatness - Google Patents

The high plastic film and preparation method thereof of a kind of easy corona, flatness Download PDF

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Publication number
CN109094161A
CN109094161A CN201811266989.5A CN201811266989A CN109094161A CN 109094161 A CN109094161 A CN 109094161A CN 201811266989 A CN201811266989 A CN 201811266989A CN 109094161 A CN109094161 A CN 109094161A
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layer
weight
raw material
ldpe
film
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CN109094161B (en
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李忠
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KUNSHAN JINMENG PLASTIC FILM CO Ltd
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KUNSHAN JINMENG PLASTIC FILM CO Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/242—All polymers belonging to those covered by group B32B27/32
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/75—Printability

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  • Compositions Of Macromolecular Compounds (AREA)
  • Wrappers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The present invention provides the high plastic films and preparation method thereof of a kind of easy corona, flatness.The plastic film includes outer layer, middle layer, internal layer, outer layer weight accounts for the 20~40% of film gross weight, and middle layer weight accounts for the 30~50% of film gross weight, and interior layer weight accounts for the 20~40% of film gross weight, by weight percentage, outer layer is by 70~80%LDPE 2420H, 10~20% nanometers of Al2O3It is formed with 1~10% stabilizer；Middle layer is made of 70~90%LDPE 2420H and 10~30%LLDPE LL0220AA；Internal layer is by 60~70%LDPE 2420H, 10~30%VM, 6102,1~2 parts of smooth master batches, 10~20% nanometers of Al2O3It is formed with 1~5 part of PEA-3S.Plastic film of the invention has excellent corona-resistance property, and flexibility is good, and flatness is high, and tensile property is good.

Description

The high plastic film and preparation method thereof of a kind of easy corona, flatness
Technical field
The invention belongs to thin film technique field, it is related to a kind of plastic film and preparation method thereof more particularly to a kind of easy electricity Dizzy, plastic film that flatness is high and preparation method thereof.
Background technique
PE stretched film (also known as winding film) tensile strength with higher, tearing toughness, and there is good tack, Therefore object can be made to wrap up in into an entirety, prevents from being scattered when transport and collapses.The film has the excellent transparency, and package object is beautiful It is generous, and object waterproof and dustproof, anti-tamper can be made, therefore be widely used in cargo pallet packaging, such as electronics, building materials, chemical industry, gold The bundle of the industries such as metal products, automobile parts, wire and cable, daily necessities, food, papermaking wraps up in packaging.Most of PE add for blown film Work film, standard low density PE (LDPE) or linear low close PE (LLDPE) are all available.HDPE film-grade is generally used for requiring superior Draftability and fabulous barrier properties place.
Physics, the chemical state of Plastic film surface directly affect ink and adhesive in transfer amount and attachment above State.In order to guarantee that Plastic film surface has good printability, sided corona treatment often is carried out to the surface of plastic film, can be had The wetability and adhesion of effect improvement film surface, but the surface of PE film in the prior art ink layer after sided corona treatment Ink attachment it is not good enough, ink is easy to fall off after multiple reverse drawing.
It includes outer layer, middle layer, internal layer three that CN103029397A, which discloses a kind of film and its production method, the film, Point, each section composition ratio is (weight percent): outer layer 23%, middle layer 52%, internal layer 25%, wherein outer layer is by LDPE TN00, MDPE 1018HA, LLDPE 0209AA, LLDPE 120F composition, middle layer is by MDPE 2310, LLDPE 2230, LLDPE 0209AA, 075 masterbatch composition, internal layer is by LDPE TN00, MDPE 1018HA, MDPE 5400, MDPE 1018FA, LLDPE 0209AA, LLDPE 120F composition are prepared for that one kind is readily mass-produced, friction subsurface power is high, inner by adjusting the raw material ratio of each layer The small film of layer frictional force, but its corona-resistance property and flatness need to be further increased.
Summary of the invention
In view of the deficiencies of the prior art, the plastic film high the purpose of the present invention is to provide a kind of easy corona, flatness And preparation method thereof, which has excellent corona-resistance property, and flexibility is good, and flatness is high, and tensile property is good.
For up to the invention purpose, the invention adopts the following technical scheme:
One of the objects of the present invention is to provide the high plastic film of a kind of easy corona, flatness, including outer layer, middle layer, Internal layer three parts, the outer layer weight account for the 20~40% of film gross weight, and the middle layer weight accounts for the 30~50% of film gross weight, described Interior layer weight accounts for the 20~40% of film gross weight, wherein by weight percentage,
The outer layer prepares raw material by 70~80% LDPE 2420H, 10~20% nanometer Al2O3With 1~10% Stabilizer composition；
The middle layer prepare raw material by 70~90% LDPE 2420H and 10~30% LLDPE LL0220AA group At；
The internal layer prepares raw material by 60~70% LDPE 2420H, 10~30% 6102,1~2 parts of VM of cunning Refreshing master batch, 10~20% nanometer Al2O3PEA-3S with 1~5 part is formed.
In the present invention, using three layers of different material, and by adjusting every layer of ratio, there is plastic film obtained High tensile strength, and plastic film obtained has excellent corona-resistance property, and flexibility is good, and flatness is high, draftability It can be good；Wherein, outer layer uses LDPE 2420H, nanometer Al2O3It is raw material with stabilizer, and by adjusting the dosage of above-mentioned raw materials, The corona-resistance property and tensile property of film are improved, middle layer uses LDPE 2420H and LLDPE LL0220AA for raw material, and leads to The dosage for crossing adjustment above-mentioned raw materials, improves the tensile strength of film；Internal layer using LDPE 2420H, 6102 VM, smooth master batch, Nanometer Al2O3It is raw material, wherein VM 6102, smooth master batch, nanometer Al with PEA-3S2O3With the addition of PEA-3S, can improve The greasy property of plastics, and its antistatic performance can be improved, can efficiently solve mutual bonding between film and product it Between agglomeration problems, can accelerate squeeze (blowing) modeling it is quick-acting, product surface after molding is bright and clean smooth, can make product storage when holding Preferable opening performance, therefore each raw material synergistic effect of internal layer changes the tensile strength, flatness and stability of film It is kind, keep the flatness of plastic film obtained high, and tensile strength with higher.
Preferably, the outer layer weight accounts for the 30% of film gross weight, and the middle layer weight accounts for the 40% of film gross weight, the internal layer Weight accounts for the 30% of film gross weight.
By weight percentage, the outer layer prepare raw material by 70~80% LDPE 2420H, 10~20% receive Rice Al2O3With 1~10% stabilizer form, such as LDPE 2420H weight percent be 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, nanometer Al2O3Weight percent be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, the weight percent of stabilizer is 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%；Preferably, by weight percentage, the outer layer prepares raw material by 75~80% LDPE 2420H, 15~20% nanometer Al2O3Stabilizer with 1~5% forms；It is highly preferred that by weight percentage, the outer layer Prepare raw material by 78% LDPE 2420H, 18% nanometer Al2O3Stabilizer with 4% forms.
Wherein, nanometer Al2O3Addition can be effectively improved the corona-resistance property of plastic film, the nanometer Al2O3Grain Diameter is 10~50nm, such as nanometer Al2O3Partial size be 10nm, 20nm, 30nm, 40nm, 50nm.
Preferably, the stabilizer is light stabilizer UV783.
By weight percentage, the middle layer prepares raw material by 70~90% LDPE 2420H and 10~30% LLDPE LL0220AA composition, such as LDPE 2420H weight percent be 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, The weight percent of LLDPE LL0220AA be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%；Preferably, percentage by weight Than meter, the raw material for preparing in the middle layer is made of the LLDPE LL0220AA of 75~85% LDPE 2420H and 15~25%； It is highly preferred that by weight percentage, the middle layer prepare raw material by 80% LDPE 2420H and 20% LLDPE LL0220AA composition.
By weight percentage, the internal layer prepares raw material by 60~70% LDPE 2420H, 10~30% VM 6102,1~2 part of smooth master batch, 10~20% nanometer Al2O3PEA-3S with 1~5 part is formed, such as LDPE 2420H Weight percent is 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, 70%, VM 6102 Weight percent be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, the weight percent of smooth master batch is 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9%, 2%, nanometer Al2O3Weight percent be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, the weight percent of 20%, PEA-3S is 1%, 2%, 3%, 4%, 5%；Preferably, by weight percentage, the internal layer prepares raw material by 60~65% LDPE 2420H, 15~25% 6102,1~2 parts of smooth master batch of VM, 10~15% nanometer Al2O3With 1~5 part of PEA-3S group At；It is highly preferred that by weight percentage, the internal layer prepares raw material by 62% LDPE 2420H, 18% VM 6102,2 parts of smooth master batch, 14% nanometer Al2O3PEA-3S with 4 parts is formed.
The second object of the present invention is to provide a kind of easy corona as described in the first purpose, flatness high plastic film Preparation method, simple process, the preparation method includes the following steps:
1) mixing: preparing outer layer raw mixture for preparing after raw material mixes for the outer layer of formula ratio, will be in formula ratio The preparation middle layer raw mixture after preparing raw material mixing of layer, prepares internal layer original for preparing for the internal layer of formula ratio after raw material mixes Expect mixture；
2) ingredient: by the outer layer raw mixture, middle layer raw mixture, internal layer raw mixture of step 1) preparation by matching Than carrying out ingredient；
3) blown film: the membrane material coextrusion blow after step 2) ingredient is formed, the high modeling of the easy corona, flatness is obtained Expect film.
Preferably, in step 3), the coextrusion blow process is, by outer layer raw mixture, middle layer raw mixture, interior Layer raw mixture be added according to the ratio three-layer co-extruded inflation film machine it is outer, in, in internal layer hopper, heat and be gradually warmed up, outside Layer, middle layer, internal layer extrusion temperature control at 150~170 DEG C, such as extrusion temperature be 150 DEG C, 155 DEG C, 160 DEG C, 165 DEG C, 170 DEG C, the high plastic film of easy corona, flatness is made through extrusion and blow molding.
Compared with prior art, the invention has the benefit that
The high plastic film of easy corona of the invention, flatness selects three layers of different material and the ratio by adjusting every layer Example makes plastic film obtained have excellent corona-resistance property, and flatness is high, and tensile property is good；Plastic film obtained Tensile strength is in 80MPa or more, and flatness is good, and corona-resistance property is excellent, and the ink layer coated after sided corona treatment is through repeatedly anti- Ink is not fallen off after drawing.
The preparation method of the high plastic film of easy corona of the invention, flatness is simple, plastic film flexibility obtained Good, flatness is high, conducive to the printing of ink layer.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation.
Unless specific instructions, various raw materials of the invention are commercially available buys, or is prepared according to the conventional method of this field It obtains.
Embodiment 1
The high plastic film of the easy corona of the present embodiment, flatness, including outer layer, middle layer, internal layer three parts, outer layer weight The 30% of film gross weight is accounted for, middle layer weight accounts for the 40% of film gross weight, and interior layer weight accounts for the 30% of film gross weight, wherein percentage by weight Than counting,
Outer layer prepares raw material by 78% LDPE 2420H, 18% nanometer Al2O3Stabilizer with 4% forms；
The raw material for preparing in middle layer is made of the LLDPE LL0220AA of 80% LDPE 2420H and 20%；
The raw material for preparing of internal layer is received by 62% LDPE 2420H, 18% 6102,2 parts of VM of smooth master batch, 14% Rice Al2O3PEA-3S with 4 parts is formed.
The high plastic film of the easy corona of the present embodiment, flatness the preparation method is as follows:
1) mixing: preparing outer layer raw mixture for preparing after raw material mixes for the outer layer of formula ratio, will be in formula ratio The preparation middle layer raw mixture after preparing raw material mixing of layer, prepares internal layer original for preparing for the internal layer of formula ratio after raw material mixes Expect mixture；
2) ingredient: by the outer layer raw mixture, middle layer raw mixture, internal layer raw mixture of step 1) preparation by matching Than carrying out ingredient；
3) blown film: by the membrane material after step 2) ingredient be added three-layer co-extruded inflation film machine it is outer, in, internal layer hopper In, it heats and is gradually warmed up, easily electricity is made at 170 DEG C, through extrusion and blow molding in the extrusion temperature control of outer layer, middle layer, internal layer Plastic film dizzy, flatness is high.
Embodiment 2
The high plastic film of the easy corona of the present embodiment, flatness, including outer layer, middle layer, internal layer three parts, outer layer weight The 30% of film gross weight is accounted for, middle layer weight accounts for the 30% of film gross weight, and interior layer weight accounts for the 40% of film gross weight, wherein percentage by weight Than counting,
Outer layer prepares raw material by 75% LDPE 2420H, 18% nanometer Al2O3Stabilizer with 7% forms；
The raw material for preparing in middle layer is made of the LLDPE LL0220AA of 90% LDPE 2420H and 10%；
The raw material for preparing of internal layer is received by 60% LDPE 2420H, 20% 6102,2 parts of VM of smooth master batch, 13% Rice Al2O3PEA-3S with 5 parts is formed.
The preparation method of the high plastic film of the easy corona of the present embodiment, flatness is same as Example 1, no longer superfluous herein It states.
Embodiment 3
The high plastic film of the easy corona of the present embodiment, flatness, including outer layer, middle layer, internal layer three parts, outer layer weight The 40% of film gross weight is accounted for, middle layer weight accounts for the 30% of film gross weight, and interior layer weight accounts for the 30% of film gross weight, wherein percentage by weight Than counting,
Outer layer prepares raw material by 80% LDPE 2420H, 15% nanometer Al2O3Stabilizer with 5% forms；
The raw material for preparing in middle layer is made of the LLDPE LL0220AA of 70% LDPE 2420H and 30%；
The raw material for preparing of internal layer is received by 60% LDPE 2420H, 22% 6102,1 parts of VM of smooth master batch, 15% Rice Al2O3PEA-3S with 2 parts is formed.
The preparation method of the high plastic film of the easy corona of the present embodiment, flatness is same as Example 1, no longer superfluous herein It states.
Embodiment 4
The high plastic film of the easy corona of the present embodiment, flatness, including outer layer, middle layer, internal layer three parts, outer layer weight The 25% of film gross weight is accounted for, middle layer weight accounts for the 45% of film gross weight, and interior layer weight accounts for the 30% of film gross weight, wherein percentage by weight Than counting,
Outer layer prepares raw material by 72% LDPE 2420H, 18% nanometer Al2O3Stabilizer with 10% forms；
The raw material for preparing in middle layer is made of the LLDPE LL0220AA of 80% LDPE 2420H and 20%；
The raw material for preparing of internal layer is received by 63% LDPE 2420H, 14% 6102,2 parts of VM of smooth master batch, 20% Rice Al2O3PEA-3S with 1 part is formed.
The preparation method of the high plastic film of the easy corona of the present embodiment, flatness is same as Example 1, no longer superfluous herein It states.
Embodiment 5
The high plastic film of the easy corona of the present embodiment, flatness, including outer layer, middle layer, internal layer three parts, outer layer weight The 35% of film gross weight is accounted for, middle layer weight accounts for the 70% of film gross weight, and interior layer weight accounts for the 25% of film gross weight, wherein percentage by weight Than counting,
Outer layer prepares raw material by 78% LDPE 2420H, 17% nanometer Al2O3Stabilizer with 5% forms；
The raw material for preparing in middle layer is made of the LLDPE LL0220AA of 75% LDPE 2420H and 25%；
The raw material for preparing of internal layer is received by 70% LDPE 2420H, 10% 6102,1 parts of VM of smooth master batch, 15% Rice Al2O3PEA-3S with 4 parts is formed.
The preparation method of the high plastic film of the easy corona of the present embodiment, flatness is same as Example 1, no longer superfluous herein It states.
Embodiment 6
The high plastic film of the easy corona of the present embodiment, flatness, including outer layer, middle layer, internal layer three parts, outer layer weight The 20% of film gross weight is accounted for, middle layer weight accounts for the 50% of film gross weight, and interior layer weight accounts for the 30% of film gross weight, wherein percentage by weight Than counting,
Outer layer prepares raw material by 70% LDPE 2420H, 20% nanometer Al2O3Stabilizer with 10% forms；
The raw material for preparing in middle layer is made of the LLDPE LL0220AA of 85% LDPE 2420H and 15%；
The raw material for preparing of internal layer is received by 70% LDPE 2420H, 14% 6102,2 parts of VM of smooth master batch, 11% Rice Al2O3PEA-3S with 3 parts is formed.
The preparation method of the high plastic film of the easy corona of the present embodiment, flatness is same as Example 1, no longer superfluous herein It states.
Embodiment 7
The high plastic film of the easy corona of the present embodiment, flatness, including outer layer, middle layer, internal layer three parts, outer layer weight The 40% of film gross weight is accounted for, middle layer weight accounts for the 40% of film gross weight, and interior layer weight accounts for the 20% of film gross weight, wherein percentage by weight Than counting,
Outer layer prepares raw material by 80% LDPE 2420H, 12% nanometer Al2O3Stabilizer with 8% forms；
The raw material for preparing in middle layer is made of the LLDPE LL0220AA of 75% LDPE 2420H and 25%；
The raw material for preparing of internal layer is received by 66% LDPE 2420H, 14% 6102,2 parts of VM of smooth master batch, 16% Rice Al2O3PEA-3S with 2 parts is formed.
The preparation method of the high plastic film of the easy corona of the present embodiment, flatness is same as Example 1, no longer superfluous herein It states.
Comparative example 1
It is that the raw material of outer layer and proportion are different in place of this comparative example and the difference of embodiment 1, by weight percentage, outside The raw material for preparing of layer is made of 100% LDPE 2420H.
The preparation method of the plastic film of this comparative example is same as Example 1, and details are not described herein.
Comparative example 2
It is that the raw material of outer layer and proportion are different in place of this comparative example and the difference of embodiment 1, by weight percentage, outside The raw material for preparing of layer is made of the stabilizer of 90% LDPE 2420H and 10%.
The preparation method of the plastic film of this comparative example is same as Example 1, and details are not described herein.
Comparative example 3
It is that the raw material in middle layer is different in place of this comparative example and the difference of embodiment 1, by weight percentage, the system in middle layer Standby raw material is made of 100% LDPE 2420H.
The preparation method of the plastic film of this comparative example is same as Example 1, and details are not described herein.
Comparative example 4
It is that the raw material in middle layer is different in place of this comparative example and the difference of embodiment 1, by weight percentage, the system in middle layer Standby raw material is made of the LLDPE 1002BU of 50% LDPE 2420H and 50%.
The preparation method of the plastic film of this comparative example is same as Example 1, and details are not described herein.
Comparative example 5
It is that the raw material of internal layer and proportion are different in place of this comparative example and the difference of embodiment 1, it is by weight percentage, interior The raw material for preparing of layer is made of the VM 6102 for including 70% LDPE 2420H and 30%.
The preparation method of the plastic film of this comparative example is same as Example 1, and details are not described herein.
Comparative example 6
It is that the raw material of internal layer and proportion are different in place of this comparative example and the difference of embodiment 1, it is by weight percentage, interior Layer prepares raw material by the nanometer Al of 70% LDPE 2420H, 15% VM 6102,10%2O3PEA-3S with 5 parts is formed.
The preparation method of the plastic film of this comparative example is same as Example 1, and details are not described herein.
Comparative example 7
It is that the raw material of internal layer and proportion are different in place of this comparative example and the difference of embodiment 1, it is by weight percentage, interior The raw material for preparing of layer is made of the smooth master batch of 70% LDPE 2420H, 29% VM 6102,1%.
The preparation method of the plastic film of this comparative example is same as Example 1, and details are not described herein.
Comparative example 8
The plastic film of this comparative example, including outer layer, middle layer, internal layer three parts, outer layer weight account for the 10% of film gross weight, in Layer weight accounts for the 80% of film gross weight, and interior layer weight accounts for the 10% of film gross weight.
The preparation method of the plastic film of this comparative example is same as Example 1, and details are not described herein.This comparative example and implementation It is that the ratio of film gross weight shared by the weight of outer layer, middle layer, internal layer is different in place of the difference of example 1.
The performance of the embodiment 1-7 and comparative example 1-8 film prepared is tested, test result is as shown in table 1.
Table 1
As it can be seen from table 1 the present invention is by adjusting outer layer, middle layer, the weight of internal layer and every layer of raw material and proportion, Plastic film obtained has excellent corona-resistance property, and flatness is high, and tensile property is good；The stretching of plastic film obtained is strong Degree is in 80MPa or more, and flatness is good, and corona-resistance property is excellent, and the ink layer coated after sided corona treatment is oily after multiple reverse drawing Ink is not fallen off.The preparation method of the high plastic film of easy corona of the invention, flatness is simple, plastic film flexibility obtained Good, flatness is high, conducive to the printing of ink layer.
Detailed process equipment and process flow of the invention that the present invention is explained by the above embodiments, but the present invention is not It is confined to above-mentioned detailed process equipment and process flow, that is, does not mean that the present invention must rely on above-mentioned detailed process equipment and work Skill process could be implemented.It should be clear to those skilled in the art, any improvement in the present invention, to product of the present invention The equivalence replacement of each raw material and addition, the selection of concrete mode of auxiliary element etc., all fall within protection scope of the present invention and public affairs Within the scope of opening.

Claims (10)

1. the high plastic film of a kind of easy corona, flatness, including outer layer, middle layer, internal layer three parts, which is characterized in that described Outer layer weight accounts for the 20~40% of film gross weight, and the middle layer weight accounts for the 30~50% of film gross weight, and it is total that the interior layer weight accounts for film The 20~40% of weight, wherein by weight percentage,
The outer layer prepares raw material by 70~80% LDPE 2420H, 10~20% nanometer Al2O3With 1~10% it is steady Determine agent composition；
The raw material for preparing in the middle layer is made of the LLDPE LL0220AA of 70~90% LDPE 2420H and 10~30%；
The internal layer prepares raw material by 60~70% LDPE 2420H, 10~30% 6102,1~2 parts of VM of smooth mother Grain, 10~20% nanometer Al2O3PEA-3S with 1~5 part is formed.
2. the high plastic film of easy corona according to claim 1, flatness, which is characterized in that the outer layer weight accounts for The 30% of film gross weight, the middle layer weight account for the 40% of film gross weight, and the interior layer weight accounts for the 30% of film gross weight.
3. the high plastic film of easy corona according to claim 1 or 2, flatness, which is characterized in that by weight percentage Meter, the outer layer prepare raw material by 75~80% LDPE 2420H, 15~20% nanometer Al2O3With 1~5% stabilization Agent composition；
Preferably, the nanometer Al2O3Partial size be 10~50nm；
Preferably, the stabilizer is light stabilizer UV783.
4. the high plastic film of easy corona, flatness described in one of -3 according to claim 1, which is characterized in that by weight hundred Divide than meter, the outer layer prepares raw material by 78% LDPE 2420H, 18% nanometer Al2O3Stabilizer with 4% forms.
5. the high plastic film of easy corona, flatness described in one of -4 according to claim 1, which is characterized in that by weight hundred Point than meter, the middle layer prepare raw material by 75~85% LDPE 2420H and 15~25% LLDPE LL0220AA group At.
6. the high plastic film of easy corona, flatness described in one of -5 according to claim 1, which is characterized in that by weight hundred Divide than meter, the raw material for preparing in the middle layer is made of the LLDPE LL0220AA of 80% LDPE 2420H and 20%.
7. the high plastic film of easy corona, flatness described in one of -6 according to claim 1, which is characterized in that by weight hundred Divide than meter, the internal layer prepares raw material by 60~65% LDPE 2420H, 15~25% 6102,1~2 parts of VM of cunning Refreshing master batch, 10~15% nanometer Al2O3PEA-3S with 1~5 part is formed；
Preferably, the nanometer Al2O3Partial size be 10~50nm.
8. the high plastic film of easy corona, flatness described in one of -7 according to claim 1, which is characterized in that by weight hundred Divide than meter, the internal layer prepares raw material by 62% LDPE 2420H, 18% 6102,2 parts of VM of smooth master batch, 14% Nanometer Al2O3PEA-3S with 4 parts is formed.
9. the preparation method of the high plastic film of easy corona, flatness described in one of -8, feature exist according to claim 1 In the preparation method includes the following steps:
1) mixing: preparing after raw material mixes for the outer layer of formula ratio is prepared into outer layer raw mixture, by the middle layer of formula ratio Middle layer raw mixture is prepared after preparing raw material mixing, preparing after raw material mixes for the internal layer of formula ratio is prepared internal layer raw material and mix Close object；
2) ingredient: by step 1) preparation outer layer raw mixture, middle layer raw mixture, internal layer raw mixture according to the ratio into Row ingredient；
3) blown film: the membrane material coextrusion blow after step 2) ingredient is formed, it is thin to obtain the high plastics of the easy corona, flatness Film.
10. preparation method as claimed in claim 9, which is characterized in that in step 3), the coextrusion blow process is, will be outer Layer raw mixture, middle layer raw mixture, internal layer raw mixture be added according to the ratio three-layer co-extruded inflation film machine it is outer, In, in internal layer hopper, heat and be gradually warmed up, outer layer, middle layer, internal layer extrusion temperature control at 150~170 DEG C, through squeezing out The high plastic film of easy corona, flatness is made in blow molding.
CN201811266989.5A 2018-10-29 2018-10-29 Plastic film easy to corona and high in flatness and preparation method thereof Active CN109094161B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032625A (en) * 1983-08-01 1985-02-19 Keiwa Shoko Kk Manufacture of linear low-density polyethylene extruded laminate base sheet
US20080118746A1 (en) * 2006-11-16 2008-05-22 Karl-Michael Klenk Digital Printing of Low Volume Applications
CN102991074A (en) * 2012-12-28 2013-03-27 昆山金盟塑料薄膜有限公司 Thin film and production method thereof
CN204914810U (en) * 2015-08-24 2015-12-30 出菊萍 Novel polyethylene film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032625A (en) * 1983-08-01 1985-02-19 Keiwa Shoko Kk Manufacture of linear low-density polyethylene extruded laminate base sheet
US20080118746A1 (en) * 2006-11-16 2008-05-22 Karl-Michael Klenk Digital Printing of Low Volume Applications
CN102991074A (en) * 2012-12-28 2013-03-27 昆山金盟塑料薄膜有限公司 Thin film and production method thereof
CN204914810U (en) * 2015-08-24 2015-12-30 出菊萍 Novel polyethylene film

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* Cited by examiner, † Cited by third party
Title
机械工业部广州电气科学研究所；机械工业部科学技术情报所: "《国外机电产品环境技术》", 30 September 1986, 机械工业出版社 *

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