CN109535531A - A kind of high-performance environment-friendly packaging film and preparation method thereof - Google Patents
A kind of high-performance environment-friendly packaging film and preparation method thereof Download PDFInfo
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- CN109535531A CN109535531A CN201811167501.3A CN201811167501A CN109535531A CN 109535531 A CN109535531 A CN 109535531A CN 201811167501 A CN201811167501 A CN 201811167501A CN 109535531 A CN109535531 A CN 109535531A
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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
-
- 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
- C08J2323/08—Copolymers of ethene
-
- 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
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- 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
-
- 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
- C08J2429/00—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 at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
Abstract
The invention discloses a kind of high-performance environment-friendly packaging films, its raw material is grouped as by the group of following parts by weight: 100~120 parts of linear low density polyethylene (LLDPE), 35~45 parts of polylactic acid, 30~40 parts of ethylene-vinyl acetate copolymer, 20~35 parts of ethylene-vinyl alcohol copolymer, 18~25 parts of polyvinyl alcohol, 14~22 parts of chitosan, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] 0.4~0.65 part of pentaerythritol esters, 0.7~1.4 part of ferric stearate, 14~18 parts of reinforcing agent, 15~18 parts of plasticizer.The present invention is by preferred raw material, and there is excellent mechanical property to discard after nature such as tensile strength, elongation at break and barrier property for rational proportion, high-performance environment-friendly packaging film obtained, and degradable by light or organisms occurs, capable of being fast degraded.
Description
Technical field
The present invention relates to a kind of packaging films, and in particular to a kind of high-performance environment-friendly packaging film and preparation method thereof.
Background technique
In recent years, with the improvement of people's environmental awareness, " white pollution " problem becomes the hot spot of social concerns.Using life
Biodegradable material is used as packaging film and is undoubtedly the effective method that solves the problems, such as.Currently, biodegradable material includes
Polysaccharide such as cellulose, converted starch, sodium alginate, chitosan etc. and protein such as soybean protein, corn protein, wheat
Alcohol soluble protein matter and gelatin etc..These degradable materials are mainly used for fruit freshness preserving, meat preservation, food packaging, and can directly eat
With.
Existing environment-protective packaging film degradation speed is slow, and because biodegradable component includes the addition such as polysaccharide such as cellulose,
So that its tensile strength, elongation at break and barrier property etc. are deteriorated.
Summary of the invention
In view of this, the present invention provides a kind of high-performance environment-friendly packaging film and preparation method thereof.The present invention passes through preferred former
Material, and rational proportion, high-performance environment-friendly packaging film obtained have excellent mechanical property, such as tensile strength, extension at break
Rate and barrier property, are discarded after nature, and degradable by light or organisms occurs, capable of being fast degraded.
In order to solve the above technical problems, technical solution provided by the invention is a kind of high-performance environment-friendly packaging film, raw material
It is grouped as by the group of following parts by weight: 100~120 parts of linear low density polyethylene (LLDPE), 35~45 parts of polylactic acid, ethyl vinyl acetate second
30~40 parts of alkene copolymer, 20~35 parts of ethylene-vinyl alcohol copolymer, 18~25 parts of polyvinyl alcohol, 14~22 parts of chitosan, four
[β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] 0.4~0.65 part of pentaerythritol ester, increases 0.7~1.4 part of ferric stearate
Strong 14~18 parts of agent, 15~18 parts of plasticizer.
Preferably, raw material is grouped as by the group of following parts by weight: 105~115 parts of linear low density polyethylene (LLDPE), polylactic acid
38~42 parts, 32~36 parts of ethylene-vinyl acetate copolymer, 24~32 parts of ethylene-vinyl alcohol copolymer, polyvinyl alcohol 19~22
It is part, 16~18 parts of chitosan, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] 0.45~0.6 part of pentaerythritol esters, hard
0.85~1.25 part of resin acid iron, 15~17 parts of reinforcing agent, 16~17 parts of plasticizer.
Preferably, raw material is grouped as by the group of following parts by weight: 110 parts of linear low density polyethylene (LLDPE), 40 parts of polylactic acid,
35 parts of ethylene-vinyl acetate copolymer, 28 parts of ethylene-vinyl alcohol copolymer, 20 parts of polyvinyl alcohol, 17 parts of chitosan, four [β-
(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] 0.5 part of pentaerythritol ester, 0.9 part of ferric stearate, 16 parts of reinforcing agent, plasticizer
16.5 parts.
It is furthermore preferred that the reinforcing agent is one of nanometer calcium carbonate, nano silica and glass fibre or a variety of.
It is furthermore preferred that the plasticizer is one of polyethylene glycol-400, epoxidized soybean oil, citrate or a variety of.
The present invention also provides a kind of preparation methods of high-performance environment-friendly packaging film, including the following steps:
(1) it is formed according to the raw material of the high-performance environment-friendly packaging film, weighs each raw material；
(2) the weighed each raw material of step (1) is first mixed, 10min is then remixed in high-speed mixer, be sent into after mixing double
It is squeezed out in screw extruder, keeps the temperature 30~40min after extrusion at 155~165 DEG C, cooling, biaxial tension, winding, i.e.,
Obtain high-performance environment-friendly packaging film.
Compared with prior art, the present invention its detailed description are as follows:
1, the present invention is by preferred raw material, and rational proportion, high-performance environment-friendly packaging film obtained have excellent mechanical property
Can, it such as tensile strength, elongation at break and barrier property, discards after nature, degradable by light or organisms occurs, it can be fast
Prompt drop solution.
2, present invention selection ethylene-vinyl acetate copolymer, polylactic acid, ethylene-vinyl alcohol copolymer, polyvinyl alcohol and line style
Linear low density polyethylene (LLDPE) is as compound matrix material, and not only the compatibility of complex matrix each component is good, and with other auxiliary agents
Compatibility might as well, therefore, have excellent mechanical property, such as tensile strength, elongation at break and barrier property.
3, present invention adds polylactic acid and polyvinyl alcohol are degradable in nature, cause after polylactic acid and pva degradation
Entire packaging film structure collapses, can accelerated degradation.
4, present invention adds four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and ferric stearate, make
High-performance environment-friendly packaging film, is discarded after nature, accelerates that light degradation occurs, and by many experiments, is found said ratio, was both protected
The service performance requirement of high-performance environment-friendly packaging film of the invention is demonstrate,proved, and can discarded after nature, accelerates that light degradation occurs.
Specific embodiment
It is right combined with specific embodiments below in order to make those skilled in the art more fully understand technical solution of the present invention
The preferred embodiments of the invention are described, but it is to be understood that these descriptions are only to further illustrate spy of the invention
Advantage of seeking peace rather than to the invention patent require limitation.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment 1: a kind of high-performance environment-friendly packaging film, raw material are grouped as by the group of following parts by weight: linear, low density
100 parts of polyethylene, 35 parts of polylactic acid, 30 parts of ethylene-vinyl acetate copolymer, 20 parts of ethylene-vinyl alcohol copolymer, polyvinyl alcohol
18 parts, 14 parts of chitosan, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] 0.4 part of pentaerythritol esters, ferric stearate
0.7 part, 14 parts of reinforcing agent, 15 parts of plasticizer.
In the present embodiment 1, the reinforcing agent is nanometer calcium carbonate.
In the present embodiment 1, the plasticizer is polyethylene glycol-400.
In the present embodiment 1, the preparation method of the high-performance environment-friendly packaging film, including the following steps:
(1) it is formed according to the raw material of the high-performance environment-friendly packaging film, weighs each raw material；
(2) the weighed each raw material of step (1) is first mixed, 10min is then remixed in high-speed mixer, be sent into after mixing double
It is squeezed out in screw extruder, keeps the temperature 30~40min after extrusion at 155~165 DEG C, cooling, biaxial tension, winding, i.e.,
Obtain high-performance environment-friendly packaging film.
Embodiment 2: a kind of high-performance environment-friendly packaging film, raw material are grouped as by the group of following parts by weight: the high-performance
Environment-protective packaging film, raw material are grouped as by the group of following parts by weight: 115 parts of linear low density polyethylene (LLDPE), 42 parts of polylactic acid, second
36 parts of alkene-acetate ethylene copolymer, 32 parts of ethylene-vinyl alcohol copolymer, 22 parts of polyvinyl alcohol, 18 parts of chitosan, four [β-(3,
5- di-tert-butyl-hydroxy phenyl) propionic acid] 0.6 part of pentaerythritol ester, 1.25 parts of ferric stearate, 17 parts of reinforcing agent, plasticizer 17
Part.
In the present embodiment 2, the reinforcing agent is nanometer calcium carbonate and mixture of glass fibers.
In the present embodiment 2, the plasticizer is citrate.
In the present embodiment 2, the preparation method of the high-performance environment-friendly packaging film, including the following steps:
(1) it is formed according to the raw material of the high-performance environment-friendly packaging film, weighs each raw material；
(2) the weighed each raw material of step (1) is first mixed, 10min is then remixed in high-speed mixer, be sent into after mixing double
It is squeezed out in screw extruder, keeps the temperature 30~40min after extrusion at 155~165 DEG C, cooling, biaxial tension, winding, i.e.,
Obtain high-performance environment-friendly packaging film.
Embodiment 3: a kind of high-performance environment-friendly packaging film, raw material are grouped as by the group of following parts by weight: the high-performance
Environment-protective packaging film, raw material are grouped as by the group of following parts by weight: 110 parts of linear low density polyethylene (LLDPE), 40 parts of polylactic acid, second
35 parts of alkene-acetate ethylene copolymer, 28 parts of ethylene-vinyl alcohol copolymer, 20 parts of polyvinyl alcohol, 17 parts of chitosan, four [β-(3,
5- di-tert-butyl-hydroxy phenyl) propionic acid] 0.5 part of pentaerythritol ester, 0.9 part of ferric stearate, 16 parts of reinforcing agent, plasticizer
16.5 parts.
In the present embodiment 3, the reinforcing agent is the mixing in nanometer calcium carbonate, nano silica and glass fibre
Object.
In the present embodiment 3, the plasticizer is polyethylene glycol-400 and epoxy soybean oil mixture.
In the present embodiment 3, the preparation method of the high-performance environment-friendly packaging film, including the following steps:
(1) it is formed according to the raw material of the high-performance environment-friendly packaging film, weighs each raw material；
(2) the weighed each raw material of step (1) is first mixed, 10min is then remixed in high-speed mixer, be sent into after mixing double
It is squeezed out in screw extruder, keeps the temperature 30~40min after extrusion at 155~165 DEG C, cooling, biaxial tension, winding, i.e.,
Obtain high-performance environment-friendly packaging film.
High-performance environment-friendly packaging film obtained by embodiment 1-3 is tested, the results are shown in Table 1.It will be obtained by embodiment 1-3
It high-performance environment-friendly packaging film and commercially available degradable packaging film measurement induction period and brittle phase, is wherein used in photooxidation assessment method
The decline degree of elongation at break indicates induction period and brittle phase, when elongation at break retention reaches the 80% of initial value
Exposure duration is induction period；Exposure duration when 20% is the brittle phase.Test condition: ultraviolet light artificially roughening is used
Case (long 2.4m, wide 1.2m, high 0.4m install 6 fluorescent tubes, every 40w) is tested to carry out.Tested film is placed in bottom, carries out people
Work accelerates light degradation experiment.Film is cut into rectangular item of the same size (long 42cm, wide 33cm).Film and fluorescent tube distance 20cm,
Film frame center is distributed in into the effective light area both sides 45cm, the temperature inside the box (35 ± 3) DEG C.Elongation at break uses GB9687-
1988 standard testings.
Table 1
As can be seen from the above table, high-performance environment-friendly packaging film of the invention not only has excellent mechanical property, such as stretches
Intensity, elongation at break, and degradation speed is fast.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
It also should be regarded as protection scope of the present invention into retouching.
Claims (6)
1. a kind of high-performance environment-friendly packaging film, which is characterized in that its raw material is grouped as by the group of following parts by weight: linear, low density
100~120 parts of polyethylene, 35~45 parts of polylactic acid, 30~40 parts of ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer
20~35 parts, 18~25 parts of polyvinyl alcohol, 14~22 parts of chitosan, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid]
0.4~0.65 part of pentaerythritol ester, 0.7~1.4 part of ferric stearate, 14~18 parts of reinforcing agent, 15~18 parts of plasticizer.
2. high-performance environment-friendly packaging film according to claim 1, which is characterized in that its raw material by following parts by weight component
Composition: 105~115 parts of linear low density polyethylene (LLDPE), 38~42 parts of polylactic acid, 32~36 parts of ethylene-vinyl acetate copolymer, second
24~32 parts of alkene-ethenol copolymer, 19~22 parts of polyvinyl alcohol, 16~18 parts of chitosan, four [β-(3,5- di-t-butyl -4-
Hydroxy phenyl) propionic acid] 0.45~0.6 part of pentaerythritol ester, 0.85~1.25 part of ferric stearate, 15~17 parts of reinforcing agent, plasticising
16~17 parts of agent.
3. high-performance environment-friendly packaging film according to claim 1, which is characterized in that its raw material by following parts by weight component
Composition: 110 parts of linear low density polyethylene (LLDPE), 40 parts of polylactic acid, 35 parts of ethylene-vinyl acetate copolymer, ethylene vinyl alcohol copolymer
28 parts of object, 20 parts of polyvinyl alcohol, 17 parts of chitosan, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters
0.5 part, 0.9 part of ferric stearate, 16 parts of reinforcing agent, 16.5 parts of plasticizer.
4. high-performance environment-friendly packaging film according to any one of claims 1 to 3, which is characterized in that the reinforcing agent is to receive
One of rice calcium carbonate, nano silica and glass fibre are a variety of.
5. high-performance environment-friendly packaging film according to any one of claims 1 to 3, which is characterized in that the plasticizer is poly-
One of ethylene glycol -400, epoxidized soybean oil, citrate are a variety of.
6. a kind of preparation method of high-performance environment-friendly packaging film as described in any one of claims 1 to 3, which is characterized in that packet
Include the following steps:
(1) it is formed according to the raw material of the high-performance environment-friendly packaging film, weighs each raw material；
(2) the weighed each raw material of step (1) is first mixed, 10min is then remixed in high-speed mixer, be sent into after mixing double
It is squeezed out in screw extruder, keeps the temperature 30~40min after extrusion at 155~165 DEG C, cooling, biaxial tension, winding, i.e.,
Obtain high-performance environment-friendly packaging film.
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| CN111995786A (en) * | 2020-09-14 | 2020-11-27 | 河源昆腾电子科技有限公司 | High-weather-resistance energy-saving environment-friendly film and preparation method thereof |
| CN112266529A (en) * | 2020-10-25 | 2021-01-26 | 太仓市鸿运包装材料有限公司 | High-performance environment-friendly packaging film and preparation method thereof |
| CN113321911A (en) * | 2021-07-12 | 2021-08-31 | 南通美韦德生命科学有限公司 | Medical degradable plastic |
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| CN113321911A (en) * | 2021-07-12 | 2021-08-31 | 南通美韦德生命科学有限公司 | Medical degradable plastic |
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Application publication date: 20190329 |