CN112442221A - Environment-friendly oxygen-isolating degradable plastic film and preparation method thereof - Google Patents
Environment-friendly oxygen-isolating degradable plastic film and preparation method thereof Download PDFInfo
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- CN112442221A CN112442221A CN201910810622.3A CN201910810622A CN112442221A CN 112442221 A CN112442221 A CN 112442221A CN 201910810622 A CN201910810622 A CN 201910810622A CN 112442221 A CN112442221 A CN 112442221A
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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
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
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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
-
- 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
- C08J2431/00—Characterised by the use of copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
- C08J2431/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
- C08J2431/04—Homopolymers or copolymers of vinyl acetate
-
- 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
- C08J2433/24—Homopolymers or copolymers of amides or imides
- C08J2433/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- 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
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
Abstract
The invention relates to the technical field of plastic films, in particular to an environment-friendly oxygen-isolating degradable plastic film and a preparation method thereof; the composition comprises the following components in parts by mass: 20-30 parts of high-density polyethylene, 20-30 parts of low-density polyethylene, 10-20 parts of straw fiber, 2-6 parts of potato starch, 2-5 parts of vinyl acetate and acrylamide copolymer, 0.2-0.7 part of heat stabilizer, 0.2-0.8 part of dispersant, 0.1-0.3 part of coupling agent and 0.1-0.3 part of toughening agent.
Description
Technical Field
The invention relates to the technical field of plastic films, in particular to an environment-friendly oxygen-isolating degradable plastic film and a preparation method thereof.
Background
The high-barrier plastic film is formed by simultaneously extruding a material with strong gas barrier property and polyolefin with strong heat seaming property and water barrier property, and is a film with a multilayer structure.
In the field of packaging, EVOH is made into a composite film intermediate barrier layer, and is applied to all hard and soft packages; in the food industry for aseptic packaging, retort and retort pouches, packaging of dairy products, meat, fruit juice cans and condiments; in the non-food sector, for packaging solvents, chemicals, structural parts for air conditioners, liners for gasoline drums, electronic components, etc. In the aspect of food packaging, an EVOH plastic container can completely replace glass and metal containers, and PE/EVOH/PA/RVOH/PE five-layer co-extrusion film vacuum packaging is used for seafood exported by a plurality of domestic aquatic companies. While research on the EVOH composite film is accelerated, research on stretching orientation of EVOH is carried out abroad, and the barrier property of the novel EVOH film to gas is 3 times that of the existing high-performance non-stretching EVOH film. In addition, EVOH can also be used as a barrier material to be coated on other synthetic resin packaging materials, so that the effect of enhancing the barrier property is achieved.
The production and use costs of the existing environment-friendly oxygen-insulating degradable plastic film need to be reduced.
Disclosure of Invention
The purpose of the invention is: the invention provides an environment-friendly oxygen-insulating degradable plastic film with easily available raw materials and low production and use cost, and the invention also aims to provide the following steps: provides a preparation method of the environment-friendly oxygen-insulating degradable plastic film.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an environment-friendly oxygen-insulating degradable plastic film comprises the following components in parts by mass: 20-30 parts of high-density polyethylene, 20-30 parts of low-density polyethylene, 10-20 parts of straw fiber, 2-6 parts of potato starch, 2-5 parts of vinyl acetate and acrylamide copolymer, 0.2-0.7 part of heat stabilizer, 0.2-0.8 part of dispersant, 0.1-0.3 part of coupling agent and 0.1-0.3 part of toughening agent.
Further, the heat stabilizer is one or more of organic tin chloride, organic tin oxide, basic salt, dibasic lead phthalate and dibasic lead phosphite.
Further, the heat stabilizer is a mixture of organic tin chloride and a wave-based salt, and the mass ratio of the organic tin chloride to the wave-based salt is 1: 1-3.
Further, the heat stabilizer is a mixture of organic tin chloride and a wave-based salt, and the mass ratio of the organic tin chloride to the wave-based salt is 1: 2.
Further, the dispersing agent is one or more of triethylhexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide and guar gum.
Further, the dispersing agent is a mixture of triethyl hexyl phosphoric acid and a cellulose derivative, and the mass ratio of the dispersing agent to the cellulose derivative is 1: 2.
Furthermore, the coupling agent is one or more of silane coupling agents KH550, KH560, KH570, KH792, DL602 and DL 171.
Further, the coupling agent is a mixture of silane coupling agents KH550 and KH792, and the mass ratio of the silane coupling agents KH550 to KH792 is 1: 2.
Further, the toughening agent is one or more of acrylate rubber, carboxyl nitrile rubber, chloroprene rubber and chlorosulfonated polyethylene.
The preparation method of the environment-friendly oxygen-insulating degradable plastic film comprises the following steps:
(1) putting high-density polyethylene, low-density polyethylene, straw fiber, potato starch, vinyl acetate-acrylamide copolymer, heat stabilizer, dispersant, coupling agent and toughening agent into a high-speed stirrer, and stirring to obtain master batch;
(2) transferring the master batch into a double-screw extruder to extrude the master batch, putting the master batch into a film blowing machine, performing blow molding to form a film, cutting and rolling to obtain the degradable plastic film.
The technical scheme adopted by the invention has the beneficial effects that:
the environment-friendly oxygen-insulating degradable plastic film disclosed by the invention is reasonable in raw material proportion, good in oxygen-insulating effect due to the matching of high-density polyethylene, low-density polyethylene, straw fiber, potato starch, vinyl acetate and acrylamide copolymer, simple in preparation method and low in production cost.
Detailed Description
The following examples are intended to provide those skilled in the art with a more complete understanding of the present invention, and are not intended to limit the scope of the present invention. Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
An environment-friendly oxygen-insulating degradable plastic film comprises the following components in parts by mass: 20 parts of high-density polyethylene, 20 parts of low-density polyethylene, 10 parts of straw fiber, 2 parts of potato starch, 2 parts of vinyl acetate and acrylamide copolymer, 0.2 part of heat stabilizer, 0.2 part of dispersant, 0.1 part of coupling agent and 0.1 part of toughening agent.
Wherein the heat stabilizer is organotin chloride
Wherein, the dispersant is triethyl hexyl phosphoric acid.
Wherein the coupling agent is silane coupling agent KH 550.
Wherein, the toughening agent is acrylate rubber.
The preparation method of the environment-friendly oxygen-insulating degradable plastic film comprises the following steps:
(1) putting high-density polyethylene, low-density polyethylene, straw fiber, potato starch, vinyl acetate-acrylamide copolymer, heat stabilizer, dispersant, coupling agent and toughening agent into a high-speed stirrer, and stirring to obtain master batch;
(2) transferring the master batch into a double-screw extruder to extrude the master batch, putting the master batch into a film blowing machine, performing blow molding to form a film, cutting and rolling to obtain the degradable plastic film.
Example 2
An environment-friendly oxygen-insulating degradable plastic film comprises the following components in parts by mass: 3 parts of high-density polyethylene 22 alkenyl ester and acrylamide copolymer, 0.3 part of heat stabilizer, 0.3 part of dispersant, 0.1 part of coupling agent and 0.1 part of toughening agent.
Wherein the heat stabilizer is a mixture of organic tin chloride and wave-based salt, and the mass ratio of the organic tin chloride to the wave-based salt is 1: 1.
Wherein the dispersing agent is a mixture of triethyl hexyl phosphoric acid and cellulose derivatives, and the mass ratio of the dispersing agent to the cellulose derivatives is 1: 2.
Wherein the coupling agent is a mixture of silane coupling agents KH550 and KH792, and the mass ratio of the silane coupling agents KH550 to KH792 is 1: 2.
Wherein, the toughening agent is acrylate rubber.
The preparation method of the environment-friendly oxygen-insulating degradable plastic film comprises the following steps:
(1) putting high-density polyethylene, low-density polyethylene, straw fiber, potato starch, vinyl acetate-acrylamide copolymer, heat stabilizer, dispersant, coupling agent and toughening agent into a high-speed stirrer, and stirring to obtain master batch;
(2) transferring the master batch into a double-screw extruder to extrude the master batch, putting the master batch into a film blowing machine, performing blow molding to form a film, cutting and rolling to obtain the degradable plastic film.
Example 3
An environment-friendly oxygen-insulating degradable plastic film comprises the following components in parts by mass: 25 parts of high-density polyethylene, 25 parts of low-density polyethylene, 15 parts of straw fiber, 4 parts of potato starch, 3.5 parts of vinyl acetate and acrylamide copolymer, 0.4 part of heat stabilizer, 0.5 part of dispersant, 0.2 part of coupling agent and 0.2 part of flexibilizer.
Wherein the heat stabilizer is a mixture of organic tin chloride and wave-based salt, and the mass ratio of the organic tin chloride to the wave-based salt is 1: 2.
Wherein the dispersing agent is a mixture of triethyl hexyl phosphoric acid and cellulose derivatives, and the mass ratio of the dispersing agent to the cellulose derivatives is 1: 2.
Wherein the coupling agent is a mixture of silane coupling agents KH550 and KH792, and the mass ratio of the silane coupling agents KH550 to KH792 is 1: 2.
Wherein the toughening agent is carboxyl nitrile rubber.
The preparation method of the environment-friendly oxygen-insulating degradable plastic film comprises the following steps:
(1) putting high-density polyethylene, low-density polyethylene, straw fiber, potato starch, vinyl acetate-acrylamide copolymer, heat stabilizer, dispersant, coupling agent and toughening agent into a high-speed stirrer, and stirring to obtain master batch;
(2) transferring the master batch into a double-screw extruder to extrude the master batch, putting the master batch into a film blowing machine, performing blow molding to form a film, cutting and rolling to obtain the degradable plastic film.
Example 4
An environment-friendly oxygen-insulating degradable plastic film comprises the following components in parts by mass: 25 parts of high-density polyethylene, 26 parts of low-density polyethylene, 16 parts of straw fiber, 5 parts of potato starch, 4 parts of vinyl acetate and acrylamide copolymer, 0.6 part of heat stabilizer, 0.6 part of dispersant, 0.2 part of coupling agent and 0.2 part of toughening agent.
Wherein the heat stabilizer is a mixture of organic tin chloride and wave-based salt, and the mass ratio of the organic tin chloride to the wave-based salt is 1: 3.
Wherein the dispersing agent is a mixture of triethyl hexyl phosphoric acid and cellulose derivatives, and the mass ratio of the dispersing agent to the cellulose derivatives is 1: 2.
Wherein the coupling agent is a mixture of silane coupling agents KH550 and KH792, and the mass ratio of the silane coupling agents KH550 to KH792 is 1: 2.
Wherein the toughening agent is chloroprene rubber.
The preparation method of the environment-friendly oxygen-insulating degradable plastic film comprises the following steps:
(1) putting high-density polyethylene, low-density polyethylene, straw fiber, potato starch, vinyl acetate-acrylamide copolymer, heat stabilizer, dispersant, coupling agent and toughening agent into a high-speed stirrer, and stirring to obtain master batch;
(2) transferring the master batch into a double-screw extruder to extrude the master batch, putting the master batch into a film blowing machine, performing blow molding to form a film, cutting and rolling to obtain the degradable plastic film.
Example 5
An environment-friendly oxygen-insulating degradable plastic film comprises the following components in parts by mass: 30 parts of high-density polyethylene, 30 parts of low-density polyethylene, 20 parts of straw fiber, 6 parts of potato starch, 5 parts of vinyl acetate and acrylamide copolymer, 0.7 part of heat stabilizer, 0.8 part of dispersant, 0.3 part of coupling agent and 0.3 part of toughening agent.
Wherein the heat stabilizer is a mixture of organic tin chloride and wave-based salt, and the mass ratio of the organic tin chloride to the wave-based salt is 1: 3.
Wherein the dispersing agent is a mixture of triethyl hexyl phosphoric acid and cellulose derivatives, and the mass ratio of the dispersing agent to the cellulose derivatives is 1: 2.
Wherein the coupling agent is a mixture of silane coupling agents KH550 and KH792, and the mass ratio of the silane coupling agents KH550 to KH792 is 1: 2.
Wherein the toughening agent is chlorosulfonated polyethylene.
The preparation method of the environment-friendly oxygen-insulating degradable plastic film comprises the following steps:
(1) putting high-density polyethylene, low-density polyethylene, straw fiber, potato starch, vinyl acetate-acrylamide copolymer, heat stabilizer, dispersant, coupling agent and toughening agent into a high-speed stirrer, and stirring to obtain master batch;
(2) transferring the master batch into a double-screw extruder to extrude the master batch, putting the master batch into a film blowing machine, performing blow molding to form a film, cutting and rolling to obtain the degradable plastic film.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An environmental protection separates oxygen degradable plastic film which characterized in that: the composition comprises the following components in parts by mass: 20-30 parts of high-density polyethylene, 20-30 parts of low-density polyethylene, 10-20 parts of straw fiber, 2-6 parts of potato starch, 2-5 parts of vinyl acetate and acrylamide copolymer, 0.2-0.7 part of heat stabilizer, 0.2-0.8 part of dispersant, 0.1-0.3 part of coupling agent and 0.1-0.3 part of toughening agent.
2. The environment-friendly oxygen-isolating degradable plastic film as claimed in claim 1, wherein: the heat stabilizer is one or more of organic tin chloride, organic tin oxide, basic salt, dibasic lead phthalate and dibasic lead phosphite.
3. The environment-friendly oxygen-isolating degradable plastic film as claimed in claim 2, wherein: the heat stabilizer is a mixture of organic tin chloride and wave-based salt, and the mass ratio of the organic tin chloride to the wave-based salt is 1: 1-3.
4. The environment-friendly oxygen-isolating degradable plastic film as claimed in claim 3, wherein: the heat stabilizer is a mixture of organic tin chloride and wave-based salt, and the mass ratio of the organic tin chloride to the wave-based salt is 1: 2.
5. The environment-friendly oxygen-isolating degradable plastic film as claimed in claim 1, wherein: the dispersing agent is one or more of triethyl hexyl phosphoric acid, sodium dodecyl sulfate, methyl amyl alcohol, cellulose derivatives, polyacrylamide and guar gum.
6. The environment-friendly oxygen-isolating degradable plastic film as claimed in claim 5, wherein: the dispersing agent is a mixture of triethyl hexyl phosphoric acid and cellulose derivatives, and the mass ratio of the dispersing agent to the cellulose derivatives is 1: 2.
7. The environment-friendly oxygen-isolating degradable plastic film as claimed in claim 1, wherein: the coupling agent is one or more of silane coupling agents KH550, KH560, KH570, KH792, DL602 and DL 171.
8. The environment-friendly oxygen-isolating degradable plastic film as claimed in claim 1, wherein: the coupling agent is a mixture of silane coupling agents KH550 and KH792, and the mass ratio of the silane coupling agents KH550 to KH792 is 1: 2.
9. The environment-friendly oxygen-isolating degradable plastic film as claimed in claim 1, wherein: the toughening agent is one or more of acrylate rubber, carboxyl nitrile rubber, chloroprene rubber and chlorosulfonated polyethylene.
10. An environmentally friendly oxygen-barrier degradable plastic film according to any one of claims 1 to 9, wherein: the preparation method comprises the following steps:
(1) putting high-density polyethylene, low-density polyethylene, straw fiber, potato starch, vinyl acetate-acrylamide copolymer, heat stabilizer, dispersant, coupling agent and toughening agent into a high-speed stirrer, and stirring to obtain master batch;
(2) transferring the master batch into a double-screw extruder to extrude the master batch, putting the master batch into a film blowing machine, performing blow molding to form a film, cutting and rolling to obtain the degradable plastic film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910810622.3A CN112442221A (en) | 2019-08-29 | 2019-08-29 | Environment-friendly oxygen-isolating degradable plastic film and preparation method thereof |
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| CN201910810622.3A CN112442221A (en) | 2019-08-29 | 2019-08-29 | Environment-friendly oxygen-isolating degradable plastic film and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113717452A (en) * | 2021-07-19 | 2021-11-30 | 冷水江三A新材料科技有限公司 | Degradable plastic express bag |
| CN113845714A (en) * | 2021-11-20 | 2021-12-28 | 郑州市彦峰塑料包装有限公司 | Green environment-friendly packaging bag and production method thereof |
| CN116874912A (en) * | 2023-07-29 | 2023-10-13 | 深圳市品创源实业有限公司 | Degradable film and preparation method thereof |
-
2019
- 2019-08-29 CN CN201910810622.3A patent/CN112442221A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113717452A (en) * | 2021-07-19 | 2021-11-30 | 冷水江三A新材料科技有限公司 | Degradable plastic express bag |
| CN113845714A (en) * | 2021-11-20 | 2021-12-28 | 郑州市彦峰塑料包装有限公司 | Green environment-friendly packaging bag and production method thereof |
| CN116874912A (en) * | 2023-07-29 | 2023-10-13 | 深圳市品创源实业有限公司 | Degradable film and preparation method thereof |
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Application publication date: 20210305 |