CN111171756A - Antistatic precoating film and production method thereof - Google Patents
Antistatic precoating film and production method thereof Download PDFInfo
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- CN111171756A CN111171756A CN201910983009.1A CN201910983009A CN111171756A CN 111171756 A CN111171756 A CN 111171756A CN 201910983009 A CN201910983009 A CN 201910983009A CN 111171756 A CN111171756 A CN 111171756A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/06—Coating with compositions not containing macromolecular substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
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- 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
- C08K5/17—Amines; Quaternary ammonium compounds
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- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/241—Polyolefin, e.g.rubber
- C09J7/243—Ethylene or propylene polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2479/00—Presence of polyamine or polyimide
- C09J2479/02—Presence of polyamine or polyimide polyamine
- C09J2479/023—Presence of polyamine or polyimide polyamine in the primer coating
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- Chemical & Material Sciences (AREA)
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Abstract
The invention discloses an antistatic precoating film and a production method thereof, wherein the antistatic precoating film comprises a hydrophobic oil-repellent layer, a base layer, a primer layer and a hot melt adhesive layer which are sequentially arranged from outside to inside; the hydrophobic oil-repellent layer is of a three-layer structure and comprises a nano silicon dioxide layer, a fluorosilane layer and a protective layer consisting of amino acrylic resin, xylene and nano silicon dioxide which are sequentially arranged from outside to inside; the base layer consists of polypropylene, ethoxylated alkylamine and ethoxylated amine laurate; the primer layer consists of polyethyleneimine water solution and alcohol; the hot melt adhesive layer is composed of ethylene-vinyl acetate copolymer and vinyl acetate. The bonding strength of basic unit and hot melt adhesive layer is high, and should precoat the membrane function various.
Description
Technical Field
The invention relates to the technical field of pre-coating films, in particular to an antistatic pre-coating film and a production method thereof.
Background
The precoating film is a flexible package material for printed products, which is prepared by coating glue solution on a film by a precoating film processing factory according to the using specification and breadth, then selecting the film by a user factory, and then compounding the film with the printed products. The precoating film of the prior art generally has a structure consisting of a substrate and an adhesive bond line, and often has the following problems: the base material is directly combined with the adhesive, so that the bonding strength is low; the function is comparatively single, and the protective effect is poor.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to: an antistatic precoating film is provided.
In order to solve the problems, the technical solution of the invention is as follows: the antistatic precoating film comprises a hydrophobic oil-repellent layer, a base layer, a primer layer and a hot melt adhesive layer which are sequentially arranged from outside to inside;
the hydrophobic oil-repellent layer is of a three-layer structure and comprises a nano silicon dioxide layer, a fluorosilane layer and a protective layer consisting of amino acrylic resin, xylene and nano silicon dioxide which are sequentially arranged from outside to inside;
the base layer consists of polypropylene, ethoxylated alkylamine and ethoxylated amine laurate;
the primer layer consists of polyethyleneimine water solution and alcohol;
the hot melt adhesive layer is composed of ethylene-vinyl acetate copolymer and vinyl acetate.
Further, the content of the nano silicon dioxide in the protective layer is 15%.
Further, the weight ratio of the polyethyleneimine, water and alcohol in the primer layer is 15: 4: 1.
the invention also provides a preparation method of the antistatic precoating film, which comprises the following steps:
(1) mixing polypropylene, ethoxylated alkylamine and ethoxylated laurylamine, plasticizing by a double-screw extruder, sending the molten melt into a die head, forming a molten sheet at the die head, attaching the sheet to a chill roll by an air knife, quenching to form an unshaped sheet, cooling in water bath, shaping the sheet to form a cast sheet, and drawing the sheet into a film by a longitudinal drawing machine and a transverse drawing machine to obtain a base layer;
(2) carrying out corona treatment on the surface of the base layer;
(3) uniformly mixing a polyethyleneimine water solution and alcohol, coating the mixture on the inner surface of a base layer, and drying a base material after coating;
(4) taking dimethylbenzene as a solution, shearing, stirring and mixing amino acrylic resin, dimethylbenzene and nano-silica at a high speed to prepare a suspension, then spraying the suspension on the outer surface of a base layer, spraying a layer of fluorosilane solution, spraying a layer of nano-silica, standing, and then putting into an oven for curing;
(5) mixing ethylene-vinyl acetate copolymer and vinyl acetate to prepare hot melt adhesive, carrying out strong oxidation treatment on the hot melt adhesive in a molten state by using a certain amount of ozone, extruding and bonding the base layer and the hot melt adhesive together by using a composite roller when the hot melt adhesive is still in the molten state, and cooling and shaping.
Further, after the surface of the base layer is subjected to corona treatment, the base material is subjected to strong oxidation treatment with ozone.
The invention has the beneficial effects that:
xylene is used as a solution, amino acrylic resin is used as film forming resin, and then the suspension is prepared with nano silicon dioxide, after the suspension is sprayed on a base layer, a layer of fluorosilane and a layer of nano silicon dioxide are sequentially sprayed on the suspension, so that a hydrophobic oil-repellent layer with good transparency, strong binding force and high hardness can be prepared, and the triple protection effect is achieved;
the ethoxylated alkylamine is an effective antistatic agent even under the condition of low relative humidity, and is effective for a long time, the ethoxylated laurylamine has quick-acting and long-acting antistatic function, the purposes of quick acting, long acting and high efficiency are achieved by compounding the ethoxylated alkylamine and the ethoxylated laurylamine, and the defects that the migration of a general antistatic agent is influenced by temperature and time are overcome;
the polyethyleneimine in the primer layer can react with polar functional groups on the surface of the base layer and the hot melt adhesive layer chemically by virtue of polar groups 'amino' in the polyethyleneimine or form hydrogen bonds with hydroxyl groups, and the base layer and the hot melt adhesive layer can be well combined by virtue of the novel substances or bonds, so that the combination strength is high.
Drawings
FIG. 1 is a schematic structural view of an antistatic precoat film according to the present invention.
Shown in the figure: the coating comprises the following components, by weight, 1-a hydrophobic oil-repellent layer, 11-a nano silicon dioxide layer, 12-a fluorosilane layer, 13-a protective layer, 2-a base layer, 3-a primer layer and 4-a hot melt adhesive layer.
Detailed Description
For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting features are described in conjunction with the accompanying drawings of the present invention:
as shown in fig. 1, the antistatic precoating film comprises a hydrophobic oil-repellent layer 1, a base layer 2, a primer layer 3 and a hot melt adhesive layer 4 which are arranged in sequence from outside to inside;
the hydrophobic oil-repellent layer 1 is of a three-layer structure and comprises a nano silicon dioxide layer 11, a fluorosilane layer 12 and a protective layer 13 consisting of amino acrylic resin, xylene and nano silicon dioxide which are sequentially arranged from outside to inside;
the base layer 2 consists of polypropylene, ethoxylated alkylamine and ethoxylated amine laurate;
the primer layer 3 consists of polyethyleneimine water solution and alcohol;
the hot melt adhesive layer 4 is composed of ethylene-vinyl acetate copolymer and vinyl acetate.
The content of nano-silica in the protective layer 13 is 15%. The relationship between the content of the nano-silica and the pencil hardness and the adhesive force of the hydrophobic oil-repellent layer 1 is shown in the following table:
| composition of hydrophobic and oleophobic oil layer | Pencil hardness (H) | Adhesion (B) |
| 0 mass fraction of nano-silica | 3 | 5 |
| 0 mass fraction of nano silicon dioxide + fluorosilane | 3 | 5 |
| 5% (mass fraction) of nano silicon dioxide + fluorosilane | 6 | 5 |
| 10% (mass fraction) of nano silicon dioxide + fluorosilane | 6 | 5 |
| 15% (mass fraction) of nano silicon dioxide + fluorosilane | 6 | 5 |
The weight ratio of the polyethyleneimine, water and alcohol in the primer layer 3 is 15: 4: 1. the rapid volatilization of the alcohol can take away partial moisture, and a proper amount of alcohol is added for rapidly drying and discharging the moisture.
The invention also provides a preparation method of the antistatic precoating film, which comprises the following steps:
(1) mixing polypropylene, ethoxylated alkylamine and ethoxylated laurylamine, plasticizing by a double-screw extruder, sending the molten melt into a die head, forming a molten sheet at the die head, attaching the sheet to a chill roll by an air knife, quenching to form an unshaped sheet, cooling in water bath, shaping the sheet to form a cast sheet, and drawing the cast sheet into a film by a longitudinal drawing machine and a transverse drawing machine respectively to obtain a base layer 2;
(2) performing corona treatment on the surface of the base layer 2 to ensure that the surface of the base layer 2 has certain wetting tension, so that the heat seal strength of the base layer 2 and the hot melt adhesive layer 4 can be increased; after corona treatment, strong oxidation treatment is carried out on the base material by ozone to generate some polar groups which are attached to the surface of the base layer 2, so that certain activity is brought to the surface of the base layer 2, and the base material is combined with the primer layer 3 conveniently;
(3) uniformly mixing a polyethyleneimine water solution and alcohol, coating the mixture on the inner surface of the base layer 2, and drying the base material after coating;
(4) taking dimethylbenzene as a solution, shearing, stirring and mixing amino acrylic resin, dimethylbenzene and nano-silica at a high speed to prepare a suspension, then spraying the suspension on the outer surface of the base layer 2, spraying a layer of fluorosilane solution, spraying a layer of nano-silica, standing, and then putting into an oven for curing;
(5) mixing ethylene-vinyl acetate copolymer and vinyl acetate to prepare hot melt adhesive, carrying out strong oxidation treatment on the hot melt adhesive in a molten state by using a certain amount of ozone, extruding and bonding the base layer 2 and the hot melt adhesive together by using a composite roller when the hot melt adhesive is still in the molten state, and cooling and shaping. Because the ethylene-vinyl acetate copolymer is also weak in polarity, the ethylene-vinyl acetate copolymer can have certain polarity only by virtue of the vinyl acetate, but the ethylene-vinyl acetate copolymer cannot be well combined with the primer layer 3 and the base layer 2, and therefore the ethylene-vinyl acetate copolymer needs to be strongly oxidized by ozone to generate a certain amount of polar groups and then be compounded.
According to the invention, xylene is used as a solution, amino acrylic resin is used as a film forming resin, and then the suspension is prepared with nano silicon dioxide, after the suspension is sprayed on a base layer 2, a layer of fluorosilane and a layer of nano silicon dioxide are sequentially sprayed, so that a hydrophobic and oleophobic oil layer 1 with good transparency, strong binding force and high hardness can be prepared, and the triple protection effect is achieved;
the ethoxylated alkylamine is an effective antistatic agent even under the condition of low relative humidity, and is effective for a long time, the ethoxylated laurylamine has quick-acting and long-acting antistatic function, the purposes of quick acting, long acting and high efficiency are achieved by compounding the ethoxylated alkylamine and the ethoxylated laurylamine, and the defects that the migration of a general antistatic agent is influenced by temperature and time are overcome;
the polyethyleneimine in the primer layer 3 can react with the polar functional groups of the surface of the base layer 2 and the hot melt adhesive layer 4 by virtue of polar groups 'amino' in the polyethyleneimine or form hydrogen bonds with hydroxyl groups, and the base layer 2 and the hot melt adhesive layer 4 can be well combined by virtue of the novel substances or bonds, so that the combination strength is high.
Claims (5)
1. The antistatic precoating film is characterized by comprising a hydrophobic oil-repellent layer, a base layer, a primer layer and a hot melt adhesive layer which are sequentially arranged from outside to inside;
the hydrophobic oil-repellent layer is of a three-layer structure and comprises a nano silicon dioxide layer, a fluorosilane layer and a protective layer consisting of amino acrylic resin, xylene and nano silicon dioxide which are sequentially arranged from outside to inside;
the base layer consists of polypropylene, ethoxylated alkylamine and ethoxylated amine laurate;
the primer layer consists of polyethyleneimine water solution and alcohol;
the hot melt adhesive layer is composed of ethylene-vinyl acetate copolymer and vinyl acetate.
2. The antistatic precoat film according to claim 1, characterized in that: the content of the nano silicon dioxide in the protective layer is 15%.
3. The antistatic precoat film according to claim 1, characterized in that: the weight ratio of the polyethyleneimine to the water to the alcohol in the primer layer is 15: 4: 1.
4. the method for preparing an antistatic precoat film according to claim 1, characterized by comprising the steps of:
(1) mixing polypropylene, ethoxylated alkylamine and ethoxylated laurylamine, plasticizing by a double-screw extruder, sending the molten melt into a die head, forming a molten sheet at the die head, attaching the sheet to a chill roll by an air knife, quenching to form an unshaped sheet, cooling in water bath, shaping the sheet to form a cast sheet, and drawing the sheet into a film by a longitudinal drawing machine and a transverse drawing machine to obtain a base layer;
(2) carrying out corona treatment on the surface of the base layer;
(3) uniformly mixing a polyethyleneimine water solution and alcohol, coating the mixture on the inner surface of a base layer, and drying a base material after coating;
(4) taking dimethylbenzene as a solution, shearing, stirring and mixing amino acrylic resin, dimethylbenzene and nano-silica at a high speed to prepare a suspension, then spraying the suspension on the outer surface of a base layer, spraying a layer of fluorosilane solution, spraying a layer of nano-silica, standing, and then putting into an oven for curing;
(5) mixing ethylene-vinyl acetate copolymer and vinyl acetate to prepare hot melt adhesive, carrying out strong oxidation treatment on the hot melt adhesive in a molten state by using a certain amount of ozone, extruding and bonding the base layer and the hot melt adhesive together by using a composite roller when the hot melt adhesive is still in the molten state, and cooling and shaping.
5. The method for preparing an antistatic precoat film according to claim 4, characterized in that: after the surface of the base layer is subjected to corona treatment, the base material is subjected to strong oxidation treatment by ozone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910983009.1A CN111171756A (en) | 2019-10-16 | 2019-10-16 | Antistatic precoating film and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910983009.1A CN111171756A (en) | 2019-10-16 | 2019-10-16 | Antistatic precoating film and production method thereof |
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| CN111171756A true CN111171756A (en) | 2020-05-19 |
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| CN201910983009.1A Pending CN111171756A (en) | 2019-10-16 | 2019-10-16 | Antistatic precoating film and production method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183592A (en) * | 2021-05-13 | 2021-07-30 | 浙江金瑞薄膜材料有限公司 | Production method of multipurpose BOPP pre-coated film |
| CN115011272A (en) * | 2022-06-06 | 2022-09-06 | 云阳金田塑业有限公司 | Antistatic adhesive-free film and production process thereof |
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| CN109776924A (en) * | 2019-02-22 | 2019-05-21 | 滁州市超顺装备科技有限公司 | A kind of polyethylene foamed suitable for printing |
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| CN103282321A (en) * | 2010-11-01 | 2013-09-04 | 康宁股份有限公司 | Transparent substrate having durable hydrophobic/oleophobic surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183592A (en) * | 2021-05-13 | 2021-07-30 | 浙江金瑞薄膜材料有限公司 | Production method of multipurpose BOPP pre-coated film |
| CN115011272A (en) * | 2022-06-06 | 2022-09-06 | 云阳金田塑业有限公司 | Antistatic adhesive-free film and production process thereof |
| CN115011272B (en) * | 2022-06-06 | 2023-10-27 | 云阳金田塑业有限公司 | Antistatic non-adhesive film and production process thereof |
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Application publication date: 20200519 |
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