CN111040280A - Adhesive resin for high-transparency packaging film and preparation method thereof - Google Patents
Adhesive resin for high-transparency packaging film and preparation method thereof Download PDFInfo
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- CN111040280A CN111040280A CN201911378106.4A CN201911378106A CN111040280A CN 111040280 A CN111040280 A CN 111040280A CN 201911378106 A CN201911378106 A CN 201911378106A CN 111040280 A CN111040280 A CN 111040280A
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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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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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
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2351/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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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
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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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
- 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
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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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
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
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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
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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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
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
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- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a high-transparency adhesive resin for a packaging film, which comprises the following components in parts by weight: 20-60 parts of low-density polyethylene, 10-40 parts of modified low-density polyethylene, 10-30 parts of polyethylene elastomer, 1-10 parts of nucleating agent and 0.1-3 parts of stabilizer. The invention also provides a preparation method of the adhesive resin for the high-transparency packaging film. The adhesive resin for the high-transparency packaging film, which is prepared by mixing the low-density polyethylene, the modified low-density polyethylene, the polyethylene elastomer, the nucleating agent and the stabilizing agent according to the specified parts by weight and then processing, has high transparency, can be applied to producing the high-transparency packaging film, can well solve the problem of the transparency of the packaging film, and improves the service performance of the packaging film.
Description
Technical Field
The invention relates to the field of bonding resin, in particular to bonding resin for a high-transparency packaging film and a preparation method thereof.
Background
The packaging film is a consumer product closely related to the life of people, is ubiquitous in our lives, and becomes an indispensable material in the field of consumer products nowadays. The most important advantage of the packaging film is the transparency of the packaging film, the packaging film is not only suitable for packaging commodities with various shapes, but also capable of observing the commodities through the packaging film, so that the appearance attractiveness of the product is increased, and the commodities are attractive in appearance, clean and bright.
For a multi-layer co-extruded packaging film, which has a multi-layer structure and is made of polyethylene, polypropylene, nylon, bonding resin and other materials, in order for the packaging film to have high transparency, each material of the packaging film must have good transparency, otherwise the transparency of the multi-layer packaging film is greatly reduced. Polyethylene, polypropylene, nylon and other materials are single-component materials, and transparent packaging films can be produced by formulating transparent types. The adhesive resin for the multilayer co-extruded film is used as one component of the packaging film, is formed by blending different materials and is not a single material, so that the transparency of the packaging film is greatly determined by the transparency of the adhesive resin. Therefore, a highly transparent adhesive resin for a packaging film plays an important role in the transparency of the packaging film.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a bonding resin for a high-transparency packaging film and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a bonding resin for a high-transparency packaging film, which comprises the following components in parts by weight:
further, the low density polyethylene has a density of 0.910 to 0.930g/cm3The molecular weight is 10000-20000, and the melt index is 3.0-6.0g/10min at 190 ℃ and 2.16kg pressure.
Further, the modified low density polyethylene is maleic anhydride grafted low density polyethylene with a density of 0.910-0.930g/cm3The melt index is 4.0 to 6.0g/10min at 190 ℃ under 2.16kg pressure.
Further, the graft ratio of maleic anhydride was 1.0 to 2.0%.
Further, the polyethylene elastomer has a softening point of 60 to 95 ℃ and a melt index of 2.0 to 6.0g/10min at 190 ℃ under a pressure of 2.16 kg.
Further, the nucleating agent is one or more of silicon dioxide, talcum powder, stearate, sorbitol and p-hydroxybenzoic acid.
Further, the stabilizer is one or more of an antioxidant, a coupling agent, an anti-aging agent, an antistatic agent and a heat stabilizer.
The second aspect of the present invention provides a method for preparing the adhesive resin for a high-transparency packaging film, comprising the steps of:
weighing low-density polyethylene, modified low-density polyethylene, polyethylene elastomer, nucleating agent and stabilizer in specified parts by weight, adding the components into a high-speed mixing roll, and uniformly mixing;
and step two, adding the uniformly mixed material obtained in the step one into a double-screw extruder for extrusion, cooling the extruded material strips to room temperature through a circulating water tank, and feeding the cooled material strips into a granulator for granulation after air drying through a blower.
Further, the temperature of each temperature zone of the twin-screw extruder in the step two is 150-220 ℃.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the adhesive resin for the high-transparency packaging film, which is prepared by mixing the low-density polyethylene, the modified low-density polyethylene, the polyethylene elastomer, the nucleating agent and the stabilizing agent according to the specified parts by weight and then processing, has high transparency, can be applied to producing the high-transparency packaging film, can well solve the problem of the transparency of the packaging film, and improves the service performance of the packaging film.
Detailed Description
The present invention provides a bonding resin for a high-transparency packaging film and a method for preparing the same, and the present invention will be described in detail and specifically by the following examples to better understand the present invention, but the following examples do not limit the scope of the present invention.
Example 1
This example provides a preferred adhesive resin for a high-transparency packaging film, which comprises the following components in parts by weight:
wherein the density is lowThe density of the polyethylene is 0.915g/cm3The melt index was 4.0g/10min (190 ℃ C., under 2.16kg pressure), and the molecular weight was 10000.
The density of the modified low-density polyethylene is 0.910g/cm3The melt index was 4.0g/10min (190 ℃ C., 2.16kg pressure), wherein the graft ratio of maleic anhydride was 1.0%.
The polyethylene elastomer had a melt index of 3.0g/10min (190 ℃ C., under a pressure of 2.16 kg) and a softening point of 68 ℃.
Example 2
This example provides a preferred adhesive resin for a high-transparency packaging film, which comprises the following components in parts by weight:
wherein the low density polyethylene has a density of 0.915g/cm3The melt index was 3.0g/10min (190 ℃ C., 2.16kg pressure) and the molecular weight was 12000.
The modified low density polyethylene had a density of 0.910g/cm3 and a melt index of 6.0g/10min (190 ℃ C., 2.16kg pressure), and the graft ratio of maleic anhydride was 1.7%.
The polyethylene elastomer had a melt index of 6.0g/10min (190 ℃ C., under a pressure of 2.16 kg) and a softening point of 80 ℃.
Example 3
This example provides a preferred adhesive resin for a high-transparency packaging film, which comprises the following components in parts by weight:
wherein the low density polyethylene has a density of 0.915g/cm3The melt index was 6.0g/10min (190 ℃ C., under a pressure of 2.16 kg) and the molecular weight was 15000.
The density of the modified low-density polyethylene is 0.910g/cm3Melt index of 4.0g/10min (190 ℃, 2.16kg pressure), of maleic anhydrideThe graft ratio was 1.0%.
The polyethylene elastomer had a melt index of 3.0g/10min (190 ℃ C., under a pressure of 2.16 kg) and a softening point of 68 ℃.
Example 4
This example provides a method for producing an adhesive resin for a high-transparency packaging film according to any one of examples 1 to 3, comprising the steps of:
weighing low-density polyethylene, modified low-density polyethylene, polyethylene elastomer, nucleating agent and stabilizer in specified parts by weight, adding the components into a high-speed mixing roll, and uniformly mixing;
and step two, adding the uniformly mixed material obtained in the step one into a double-screw extruder for extrusion, cooling the extruded material strips to room temperature through a circulating water tank, and feeding the cooled material strips into a granulator for granulation after air drying through a blower.
Wherein, the temperature range of each temperature zone of the extruder is 150-220 ℃.
Verification examples
The adhesive resin for the high-transparency packaging film in the embodiments 1 to 3 is prepared into a multilayer co-extruded film, and the following light transmittance is detected, and the test results are as follows:
the detection result shows that the bonding resin has high transparency, can be applied to producing high-transparency packaging films, can well solve the problem of transparency of the packaging films and improves the service performance of the packaging films.
TABLE 1 results of measurement of light transmittance of multilayer coextruded films produced from the adhesive resins of examples 1 to 3
| Example 1 | Example 2 | Example 3 | |
| Light transmittance% | 90.1 | 91.2 | 92.7 |
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (9)
1. The adhesive resin for the high-transparency packaging film is characterized by comprising the following components in parts by weight:
2. the adhesive resin for highly transparent packaging films according to claim 1, wherein the low-density polyethylene has a density of 0.910 to 0.930g/cm3The molecular weight is 10000-20000, and the melt index is 3.0-6.0g/10min under the conditions of 190 ℃ and 2.16kg pressure.
3. The adhesive resin for highly transparent packaging film according to claim 1, wherein the modified low density polyethylene is maleic anhydride-grafted low density polyethylene having a density of 0.910 to 0.930g/cm3The melt index of the polycarbonate resin is 4.0-6.0g/10min under the conditions of 190 ℃ and 2.16kg of pressure.
4. The adhesive resin for a highly transparent packaging film according to claim 3, wherein the graft ratio of maleic anhydride is 1.0 to 2.0%.
5. The adhesive resin for a highly transparent packaging film according to claim 1, wherein the polyethylene elastomer has a softening point of 60 to 95 ℃ and a melt index of 2.0 to 6.0g/10min under a pressure of 2.16kg at 190 ℃.
6. The adhesive resin for a highly transparent packaging film according to claim 1, wherein the nucleating agent is one or more of silica, talc, stearate, sorbitol, and parahydroxybenzoic acid.
7. The adhesive resin for a highly transparent packaging film according to claim 1, wherein the stabilizer is one or more of an antioxidant, a coupling agent, an anti-aging agent, an antistatic agent, and a heat stabilizer.
8. A method for producing the adhesive resin for highly transparent packaging films according to any one of claims 1 to 7, comprising the steps of:
weighing the low-density polyethylene, the modified low-density polyethylene, the polyethylene elastomer, the nucleating agent and the stabilizing agent in specified parts by weight, adding the components into a high-speed mixing roll, and uniformly mixing;
and step two, adding the uniformly mixed material obtained in the step one into a double-screw extruder for extrusion, cooling the extruded material strips to room temperature through a circulating water tank, and feeding the cooled material strips into a granulator for granulation after air drying through a blower.
9. The process for producing a bonding resin for a high-transparency packaging film according to claim 8, wherein,
the temperature of each temperature zone of the double-screw extruder in the second step is 150-220 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378106.4A CN111040280A (en) | 2019-12-27 | 2019-12-27 | Adhesive resin for high-transparency packaging film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911378106.4A CN111040280A (en) | 2019-12-27 | 2019-12-27 | Adhesive resin for high-transparency packaging film and preparation method thereof |
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| CN111040280A true CN111040280A (en) | 2020-04-21 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1922281A (en) * | 2004-05-11 | 2007-02-28 | 伊奎斯塔化学有限公司 | Adhesive composition having improved clarity for coextruded barrier films |
| CN101942126A (en) * | 2009-07-08 | 2011-01-12 | 中国石油天然气股份有限公司 | Transparent antistatic polyethylene film master batch |
| CN102700210A (en) * | 2012-06-12 | 2012-10-03 | 黄山永新股份有限公司 | Seven-layer co-extrusion transparent high-isolation film and preparation method thereof |
| CN108178997A (en) * | 2017-12-26 | 2018-06-19 | 上海邦中新材料有限公司 | A kind of multi-layer co-extruded packaging material adhering resin and preparation method thereof |
-
2019
- 2019-12-27 CN CN201911378106.4A patent/CN111040280A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1922281A (en) * | 2004-05-11 | 2007-02-28 | 伊奎斯塔化学有限公司 | Adhesive composition having improved clarity for coextruded barrier films |
| CN101942126A (en) * | 2009-07-08 | 2011-01-12 | 中国石油天然气股份有限公司 | Transparent antistatic polyethylene film master batch |
| CN102700210A (en) * | 2012-06-12 | 2012-10-03 | 黄山永新股份有限公司 | Seven-layer co-extrusion transparent high-isolation film and preparation method thereof |
| CN108178997A (en) * | 2017-12-26 | 2018-06-19 | 上海邦中新材料有限公司 | A kind of multi-layer co-extruded packaging material adhering resin and preparation method thereof |
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