CN109486140A - A kind of decomposable preservative film of environmental protection and preparation method thereof - Google Patents
A kind of decomposable preservative film of environmental protection and preparation method thereof Download PDFInfo
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- CN109486140A CN109486140A CN201811480811.0A CN201811480811A CN109486140A CN 109486140 A CN109486140 A CN 109486140A CN 201811480811 A CN201811480811 A CN 201811480811A CN 109486140 A CN109486140 A CN 109486140A
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- environmental protection
- decomposable
- preservative film
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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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—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
- 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
-
- 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
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
-
- 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
- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
Abstract
The invention discloses decomposable preservative films of a kind of environmental protection and preparation method thereof, the component of the food fresh keeping membrane and the mass fraction of each component are as follows: 80~120 parts of PHA degradative plastics, 1~8 part of chitosan, 8~15 parts of starch, 0.02~0.08 part of photosensitizer, 0.01~0.04 part of tributyl 2-acetylcitrate, 0.5~1.8 part of acetic acid, 1~5 part of horse propylene copolymer, 2~8 parts of silicone oil, 3~8 parts of furfural, 4~10 parts of fructose, 40~60 parts of distilled water, 1~3 part of plasticizer, 0.5~1.5 part of defoaming agent, 0.5~1.9 part of coupling agent.Use PHA degradative plastics, chitosan, starch and fructose for primary raw material, materials safety is nontoxic, and food fresh keeping membrane obtained reaches the tensile strength and elongation at break of current food fresh keeping membrane, while degradation rate is high, and degradation cycle is short.
Description
Technical field
The invention belongs to field of packaging material, and in particular to a kind of decomposable preservative film of environmental protection and preparation method thereof.
Background technique
Food fresh keeping membrane becomes increasingly popular as a kind of novel sanitation package packing supplies, use in the family, he is in anti-stagnant ice
There is certain effect in terms of various dish taints of odour, holding dish freshness in case.At present in the process of food fresh keeping membrane, it is
Improvement product application performance, is commonly incorporated into a variety of processing aids, including plasticizer, stabilizer, antibacterial agent, crosslinking agent etc., is made
Preservative film it is difficult to degrade, bring very big environment hidden danger.
With the quickening pace of modern life, more and more fast food fast foods are taken out, are required in addition selected by city white collar
Food is packed, fast food restaurant carrys out sheathing foodstuff in addition using wrapping paper or polybag mostly at present, most food
Packaging material is commonly incorporated into a variety of processing aids in process in order to reach various effects, including plasticizer, stabilizer, anti-
Microbial inoculum, crosslinking agent etc., food safety causes the concern of more and more people in recent years, the beverage bottle detection plasticiser occurred before,
Facilitate the events such as noodle packaging box detection fluorescer, allows everybody that sight is transferred in the safety of packaging material for food.
Green package, the environmental pressure that generates in life cycle overall process is minimum and recycling rate highest.Green
Packaging material is the core of green package, it not only can be reduced and eliminate the pollution to environment, alleviates the pressure to ecological environment,
And can economize on resources, thus causing the great attention of countries in the world, numerous and confused investment substantial contribution and manpower are developed, at present
Many important achievements are obtained.Amortizing packaging material belongs to that a kind of life cycle is short, disposable packaging of " used to throw away ", wink
Between i.e. become rubbish, it is apparent to the negative effect of environment.
The toxin that generation is harmful to the human body by these disposable foaming plastic tablewares in 65 degrees Celsius or more of high temperature
With carcinogenic substance dioxin, " dioxin " is a kind of toxic chlorine-containing compound, it be toxic compounds Poisoning known to the world most
Strong, carcinogenicity is extremely strong, can cause serious skin disease and injure fetus, it is also possible to male's feminisation；One ton of disposable hair
Direct, the indirect processing cost of bubble plastic garbage is 10 times or more that it originates in value.Therefore, these " white pollutions " not only give state
Family and the people increase economic pressures for no reason, return descendants and leave a lot of problems.And foamed plastics is producing
Middle to use freon as foaming agent, making primary raw material is polystyrene.Freon is ozone depleting substances, it can make greatly
Gas generates ozone hole.And polystyrene is a kind of carcinogenic substance, it is not normal that it will cause Reproductive Performance.Such one ten evil
The foamed plastics that do not remit not only brings us harm in production and in, will also bring more new problems in processes.It is existing
When, processing foamed plastics is generally using the method burning, bury, throwing away.If foamed plastics is in the environment with the mode buried
It could decompose within 200 years or so, can also interfere plant root growth, it is also possible to impurely descend distilled water.It throws away, then provides mosquito
Sub, fly and germ's living and breeding breeding ground.
Summary of the invention
Current food fresh keeping material is difficult to degrade or degradation cycle is long to bring problem of environmental pollution in order to solve,
The present invention provides a kind of decomposable preservative film of environmental protection and preparation method thereof, and materials safety is nontoxic, food fresh keeping membrane degradation obtained
Rate is high, and degradation cycle is short.
To achieve the goals above, the technological means that the present invention uses are as follows:
The mass fraction of a kind of decomposable preservative film of environmental protection, component and each component is as follows: 80~120 parts of PHA degradative plastics,
1~8 part of chitosan, 8~15 parts of starch, 0.02~0.08 part of photosensitizer, 0.01~0.04 part of tributyl 2-acetylcitrate, acetic acid
0.5~1.8 part, 1~5 part of horse propylene copolymer, 2~8 parts of silicone oil, 3~8 parts of furfural, 4~10 parts of fructose, 40~60 parts of distilled water,
1~3 part of plasticizer, 0.5~1.5 part of defoaming agent, 0.5~1.9 part of coupling agent.
The plasticizer is at least one of glycerol, sorbierite or sugar alcohol.
The defoaming agent is polypropylene glycol or dimethicone.
The coupling agent is aluminum oxide or silane.
The environmental protection can decompose preservative film, and the mass fraction of preferably component and each component is as follows: PHA degradative plastics 90
~110 parts, 2~4 parts of chitosan, 10~12 parts of starch, 0.04~0.07 part of photosensitizer, tributyl 2-acetylcitrate 0.02~
0.03 part, 0.8~1.2 part of acetic acid, 2~4 parts of horse propylene copolymer, 4~6 parts of silicone oil, 4~6 parts of furfural, 6~8 parts of fructose, distillation
45~55 parts of water, 1.5~2.3 parts of plasticizer, 0.8~1.2 part of defoaming agent, 0.8~1.4 part of coupling agent.
The environmental protection can decompose preservative film, and the mass fraction of preferably component and each component is as follows: PHA degradative plastics 30
Part, 3 parts of chitosan, 11 parts of starch, 0.06 part of photosensitizer, 0.03 part of tributyl 2-acetylcitrate, 1 part of acetic acid, horse propylene copolymer 3
Part, 5 parts of silicone oil, 5 parts of furfural, 7 parts of fructose, 50 parts of distilled water, 2 parts of plasticizer, 1 part of defoaming agent, 1.2 parts of coupling agent.
The environmental protection can decompose the preparation method of preservative film, and acetic acid is dissolved in distilled water, chitosan is then added, is added
Heat stirs to being completely dissolved to 60~80 DEG C, remaining components is then added, stir to get sticky colloidal sol, pours into twin-screw and squeezes
Out in machine, extrusion is plasticated, blown film.
The extrusion plasticating temperature is 110~190 DEG C.
The utility model has the advantages that
The decomposable preservative film of environmental protection provided by the invention, it is main for using PHA degradative plastics, chitosan, starch and fructose
Raw material, materials safety is nontoxic, and food fresh keeping membrane obtained reaches the tensile strength and elongation at break of current food fresh keeping membrane, together
When degradation rate it is high (degradation rate is more than 95%), degradation cycle is short (degradation cycle was less than one month).
Specific embodiment
Embodiment 1
The mass fraction of a kind of decomposable preservative film of environmental protection, component and each component is as follows: 80 parts of PHA degradative plastics, shell is poly-
1 part of sugar, 8 parts of starch, 0.02 part of photosensitizer, 0.01 part of tributyl 2-acetylcitrate, 0.5 part of acetic acid, 1 part of horse propylene copolymer, silicon
2 parts, 3 parts of furfural, 4 parts of fructose, 40 parts of distilled water, 1 part of glycerol, 0.5 part of dimethicone, 0.5 part of aluminum oxide of oil.
Acetic acid is dissolved in distilled water, chitosan is then added, is heated to 70 DEG C, stirs to being completely dissolved, is then added
Remaining components stir to get sticky colloidal sol, pour into double screw extruder, and extrusion is plasticated, blown film.Squeeze out the temperature in the 1st~5 area
Degree is respectively 115 DEG C, 135 DEG C, 155 DEG C, 175 DEG C, 175 DEG C, and head temperature is 155 DEG C, revolving speed 20r/min.Film-blowing process
The extruding pelletization temperature of chinese raw materials is 135 DEG C, 155 DEG C, 165 DEG C, 160 DEG C, revolving speed 20r/min；Blown film temperature is respectively
130 DEG C, 150 DEG C, 175 DEG C, 170 DEG C, revolving speed 35r/min.
Embodiment 2
The mass fraction of a kind of decomposable preservative film of environmental protection, component and each component is as follows: 100 parts of PHA degradative plastics, shell is poly-
8 parts of sugar, 15 parts of starch, 0.08 part of photosensitizer, 0.04 part of tributyl 2-acetylcitrate, 1.8 parts of acetic acid, 5 parts of horse propylene copolymer, silicon
8 parts, 8 parts of furfural, 10 parts of fructose, 60 parts of distilled water, 3 parts of glycerol, 1.5 parts of dimethicone, 1.9 parts of aluminum oxide of oil.
Acetic acid is dissolved in distilled water, chitosan is then added, is heated to 70 DEG C, stirs to being completely dissolved, is then added
Remaining components stir to get sticky colloidal sol, pour into double screw extruder, and extrusion is plasticated, blown film.Squeeze out the temperature in the 1st~5 area
Degree is respectively 115 DEG C, 135 DEG C, 155 DEG C, 175 DEG C, 175 DEG C, and head temperature is 155 DEG C, revolving speed 20r/min.Film-blowing process
The extruding pelletization temperature of chinese raw materials is 135 DEG C, 155 DEG C, 165 DEG C, 160 DEG C, revolving speed 20r/min；Blown film temperature is respectively
130 DEG C, 150 DEG C, 175 DEG C, 170 DEG C, revolving speed 35r/min.
Embodiment 3
The mass fraction of a kind of decomposable preservative film of environmental protection, component and each component is as follows: 120 parts of PHA degradative plastics, shell is poly-
2 parts of sugar, 10 parts of starch, 0.04 part of photosensitizer, 0.02 part of tributyl 2-acetylcitrate, 0.8 part of acetic acid, 2 parts of horse propylene copolymer, silicon
4 parts, 4 parts of furfural, 6 parts of fructose, 45 parts of distilled water, 1.5 parts of sugar alcohol, 0.8 part of polypropylene glycol, 0.8 part of silane of oil.
Acetic acid is dissolved in distilled water, chitosan is then added, is heated to 70 DEG C, stirs to being completely dissolved, is then added
Remaining components stir to get sticky colloidal sol, pour into double screw extruder, and extrusion is plasticated, blown film.Squeeze out the temperature in the 1st~5 area
Degree is respectively 115 DEG C, 135 DEG C, 155 DEG C, 175 DEG C, 175 DEG C, and head temperature is 155 DEG C, revolving speed 20r/min.Film-blowing process
The extruding pelletization temperature of chinese raw materials is 135 DEG C, 155 DEG C, 165 DEG C, 160 DEG C, revolving speed 20r/min；Blown film temperature is respectively
130 DEG C, 150 DEG C, 175 DEG C, 170 DEG C, revolving speed 35r/min.
Embodiment 4
The mass fraction of a kind of decomposable preservative film of environmental protection, component and each component is as follows: 110 parts of PHA degradative plastics, shell is poly-
4 parts of sugar, 12 parts of starch, 0.07 part of photosensitizer, 0.03 part of tributyl 2-acetylcitrate, 1.2 parts of acetic acid, 4 parts of horse propylene copolymer, silicon
6 parts, 6 parts of furfural, 8 parts of fructose, 55 parts of distilled water, 2.3 parts of sugar alcohol, 1.2 parts of polypropylene glycol, 1.4 parts of silane of oil.
Acetic acid is dissolved in distilled water, chitosan is then added, is heated to 70 DEG C, stirs to being completely dissolved, is then added
Remaining components stir to get sticky colloidal sol, pour into double screw extruder, and extrusion is plasticated, blown film.Squeeze out the temperature in the 1st~5 area
Degree is respectively 115 DEG C, 135 DEG C, 155 DEG C, 175 DEG C, 175 DEG C, and head temperature is 155 DEG C, revolving speed 20r/min.Film-blowing process
The extruding pelletization temperature of chinese raw materials is 135 DEG C, 155 DEG C, 165 DEG C, 160 DEG C, revolving speed 20r/min；Blown film temperature is respectively
130 DEG C, 150 DEG C, 175 DEG C, 170 DEG C, revolving speed 35r/min.
Embodiment 5
The mass fraction of a kind of decomposable preservative film of environmental protection, component and each component is as follows: 95 parts of PHA degradative plastics, shell is poly-
3 parts of sugar, 11 parts of starch, 0.06 part of photosensitizer, 0.03 part of tributyl 2-acetylcitrate, 1 part of acetic acid, 3 parts of horse propylene copolymer, silicone oil
5 parts, 5 parts of furfural, 7 parts of fructose, 50 parts of distilled water, 2 parts of sorbierite, 1 part of dimethicone, 1.2 parts of aluminum oxide.
Acetic acid is dissolved in distilled water, chitosan is then added, is heated to 70 DEG C, stirs to being completely dissolved, is then added
Remaining components stir to get sticky colloidal sol, pour into double screw extruder, and extrusion is plasticated, blown film.Squeeze out the temperature in the 1st~5 area
Degree is respectively 115 DEG C, 135 DEG C, 155 DEG C, 175 DEG C, 175 DEG C, and head temperature is 155 DEG C, revolving speed 20r/min.Film-blowing process
The extruding pelletization temperature of chinese raw materials is 135 DEG C, 155 DEG C, 165 DEG C, 160 DEG C, revolving speed 20r/min；Blown film temperature is respectively
130 DEG C, 150 DEG C, 175 DEG C, 170 DEG C, revolving speed 35r/min.
Examples 1 to 5 is prepared to obtain the performance test of the decomposable preservative film of environmental protection, mechanical performance: presses GB/
T13022-1991 measures tensile strength and elongation at break.The measurement of light transmittance: it is measured by GB2410-1980.
Preservative film can decompose to the environmental protection that Examples 1 to 5 is prepared and carry out degradation property test, biodegradability is surveyed
Soil water experiment method is used, claims the environmental protection of certain mass to can decompose preservative film and the soil of certain mass mixes, note gross mass；So
The pedotheque for being mixed with the decomposable preservative film of environmental protection is placed in environment afterwards, respectively claims its quality for a period of time, records mass change,
Mass lost amount obtains degradation rate than original agricultural plastic film quality.
Claims (6)
1. a kind of decomposable preservative film of environmental protection, which is characterized in that the mass fraction of component and each component is as follows: PHA degradative plastics
80~120 parts, 1~8 part of chitosan, 8~15 parts of starch, 0.02~0.08 part of photosensitizer, tributyl 2-acetylcitrate 0.01~
0.04 part, 0.5~1.8 part of acetic acid, 1~5 part of horse propylene copolymer, 2~8 parts of silicone oil, 3~8 parts of furfural, 4~10 parts of fructose, distillation
40~60 parts of water, 1~3 part of plasticizer, 0.5~1.5 part of defoaming agent, 0.5~1.9 part of coupling agent.
2. the decomposable preservative film of environmental protection according to claim 1, which is characterized in that the plasticizer is glycerol, sorbierite
Or at least one of sugar alcohol.
3. the decomposable preservative film of environmental protection according to claim 1, which is characterized in that the defoaming agent be polypropylene glycol or
Dimethicone.
4. the decomposable preservative film of environmental protection according to claim 1, which is characterized in that the coupling agent be aluminum oxide or
Person's silane.
5. the preparation method that environmental protection described in any one of Claims 1-4 can decompose preservative film, which is characterized in that by second
Acid is dissolved in distilled water, and chitosan is then added, and is heated to 60~80 DEG C, stirs to being completely dissolved, remaining components are then added,
Sticky colloidal sol is stirred to get, is poured into double screw extruder, extrusion is plasticated, blown film.
6. the preparation method of the decomposable preservative film of environmental protection according to claim 5, which is characterized in that described to squeeze out temperature of plasticating
Degree is 110~190 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480811.0A CN109486140A (en) | 2018-12-05 | 2018-12-05 | A kind of decomposable preservative film of environmental protection and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480811.0A CN109486140A (en) | 2018-12-05 | 2018-12-05 | A kind of decomposable preservative film of environmental protection and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN109486140A true CN109486140A (en) | 2019-03-19 |
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| CN201811480811.0A Withdrawn CN109486140A (en) | 2018-12-05 | 2018-12-05 | A kind of decomposable preservative film of environmental protection and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760171A (en) * | 2019-08-09 | 2020-02-07 | 浙江天德塑胶科技有限公司 | Environment-friendly degradable plastic cup and processing technology thereof |
| WO2021163778A1 (en) | 2020-02-18 | 2021-08-26 | Biopolix Materiais Tecnológicos Ltda - Me | Biodegradable, thermoplastic, nanostructured bioresin composition, bioresin obtained and article |
-
2018
- 2018-12-05 CN CN201811480811.0A patent/CN109486140A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760171A (en) * | 2019-08-09 | 2020-02-07 | 浙江天德塑胶科技有限公司 | Environment-friendly degradable plastic cup and processing technology thereof |
| WO2021163778A1 (en) | 2020-02-18 | 2021-08-26 | Biopolix Materiais Tecnológicos Ltda - Me | Biodegradable, thermoplastic, nanostructured bioresin composition, bioresin obtained and article |
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