CN106496986A - A kind of degradable combination film and preparation method thereof - Google Patents
A kind of degradable combination film and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention relates to a kind of degradable combination film and preparation method thereof, is made up of the raw material of following weight portion：35 45 parts of polylactic acid, 15 22 parts of polyvinyl alcohol, 18 25 parts of starch, 12 17 parts of corn stalk powder, 8 13 parts of shitosan, 14 20 parts of lignocellulose, 7 13 parts of precipitated calcium carbonate, 49 parts of kieselguhr, 7 12 parts of vermiculite power, 38 parts of zinc oxide, 27 parts of epoxy soybean oil, 0.5 3 parts of defoamer.The thin film of the present invention is with polylactic acid as primary raw material, and compatibility is with starch, corn stalk powder, shitosan and lignocellulose, with good biodegradability, safety and environmental protection, it is to avoid produce white pollution；The magnesium oxide of interpolation, kieselguhr and vermiculite power serve not only as activating agent, and can improve thin film strength and toughness, reduce migration of plasticizer rate.The raw material of the present invention is easy to get, and cheap, preparation process is simple, with good economic benefit.
Description
Technical field
The present invention relates to laminated film technical field, and in particular to a kind of degradable combination film and preparation method thereof.
Background technology
Laminated film is played an important role in daily life, its can be used to prepare food pack, shopping bag,
Mulch film, refuse bag etc..However as plastic membrane product using increase, bring substantial amounts of pollution to natural environment, conventional
Plastic membrane product, the plastic sheeting that for example polypropylene, polrvinyl chloride, polyethylene etc. are made pollutes nature under natural environment
Degraded, after a lot of years are placed, however it remains in natural environment, these plastic sheetings that can not be degraded increased the dirt of environment
Dye.At present, the method for solving this environmental problem mainly has burning method, landfill method and recycling etc..
With the reinforcement of people's environmental consciousness, how to alleviate the topic that white pollution has been people's growing interest, degradable
Plastic sheeting is increasingly becoming a kind of development trend of main flow.For implementing a scientific outlook on development, resource-conserving and environmental friendliness is set up
Type society, people start to take effective measures from source, research and develop degradable plastic sheeting.
Content of the invention
It is an object of the invention to provide a kind of degradable combination film and preparation method thereof, improves increasingly serious white
Pollution.
In order to realize the purpose of the present invention, adopt the following technical scheme that：
A kind of degradable combination film, is made up of the raw material of following weight portion：
Preferably, it is made up of the raw material of following weight portion：
Preferably, it is made up of the raw material of following weight portion：
Preferably, starch be corn starch, dehydrated potato powder, at least one in sweet potato powder.
Further, a kind of preparation method of degradable combination film, comprises the following steps：
(1) each raw material of corresponding weight portion is weighed respectively；
(2) polylactic acid, polyvinyl alcohol, starch, corn stalk powder, shitosan, lignocellulose are added in mixer,
Heating-up temperature is 80-90 DEG C, and rotating speed is 50-60r/min, and heat time heating time is 20-30min；It is subsequently adding precipitated calcium carbonate, diatom
Soil, vermiculite power, zinc oxide and epoxy soybean oil, it is 95-110 DEG C to adjust heating-up temperature, and rotating speed is 80-100r/min, during heating
Between be 10-20min；Defoamer is eventually adding, continues stirring 5min, mix homogeneously obtains compound；
(3) by compound melt pelletization, then process is dried, baking temperature is 60-80 DEG C, and drying time is 60-
80min；
(4) grain that dries of step (3) is added in extruder, extrusion and blow molding obtains thin film.
Beneficial effects of the present invention：
The thin film of the present invention is with polylactic acid as primary raw material, and compatibility is with starch, corn stalk powder, shitosan and wooden fibre
Dimension element, with good biodegradability, safety and environmental protection, it is to avoid produce white pollution；The magnesium oxide of interpolation, kieselguhr and trematodiasiss
Stone powder serves not only as activating agent, and can improve thin film strength and toughness, reduces migration of plasticizer rate.The original of the present invention
Material is easy to get, cheap, preparation process is simple, with good economic benefit, preparation environmental friendliness plastic is had important
Meaning.
Specific embodiment
Below embodiments of the invention are elaborated, the present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following enforcements
Example.
Embodiment 1
A kind of degradable combination film, is made up of the raw material of following weight portion：35 parts of polylactic acid, 15 parts of polyvinyl alcohol,
18 parts of starch, 12 parts of corn stalk powder, 8 parts of shitosan, 14 parts of lignocellulose, 7 parts of precipitated calcium carbonate, 4 parts of kieselguhr, Vermiculitum
7 parts of powder, 3 parts of zinc oxide, 2 parts of epoxy soybean oil, 0.5 part of defoamer；Wherein starch is corn starch, dehydrated potato powder, sweet potato powder
In at least one.
A kind of preparation method of degradable combination film, comprises the following steps：
(1) each raw material of corresponding weight portion is weighed respectively；
(2) polylactic acid, polyvinyl alcohol, starch, corn stalk powder, shitosan, lignocellulose are added in mixer,
Heating-up temperature is 80 DEG C, and rotating speed is 50r/min, and heat time heating time is 20min；It is subsequently adding precipitated calcium carbonate, kieselguhr, Vermiculitum
Powder, zinc oxide and epoxy soybean oil, it is 95 DEG C to adjust heating-up temperature, and rotating speed is 80r/min, and heat time heating time is 10min；Finally plus
Enter defoamer, continue stirring 5min, mix homogeneously obtains compound；
(3) by compound melt pelletization, then process is dried, baking temperature is 60 DEG C, and drying time is 60min；
(4) grain that dries of step (3) is added in extruder, extrusion and blow molding obtains thin film.
Embodiment 2
A kind of degradable combination film, is made up of the raw material of following weight portion：45 parts of polylactic acid, 22 parts of polyvinyl alcohol,
25 parts of starch, 17 parts of corn stalk powder, 13 parts of shitosan, 20 parts of lignocellulose, 13 parts of precipitated calcium carbonate, 9 parts of kieselguhr, trematodiasiss
12 parts of stone powder, 8 parts of zinc oxide, 7 parts of epoxy soybean oil, 3 parts of defoamer；Wherein starch is corn starch, dehydrated potato powder, sweet potato powder
In at least one.
A kind of preparation method of degradable combination film, comprises the following steps：
(1) each raw material of corresponding weight portion is weighed respectively；
(2) polylactic acid, polyvinyl alcohol, starch, corn stalk powder, shitosan, lignocellulose are added in mixer,
Heating-up temperature is 90 DEG C, and rotating speed is 60r/min, and heat time heating time is 30min；It is subsequently adding precipitated calcium carbonate, kieselguhr, Vermiculitum
Powder, zinc oxide and epoxy soybean oil, it is 110 DEG C to adjust heating-up temperature, and rotating speed is 100r/min, and heat time heating time is 20min；Finally
Defoamer is added, continues stirring 5min, mix homogeneously obtains compound；
(3) by compound melt pelletization, then process is dried, baking temperature is 80 DEG C, and drying time is 80min；
(4) grain that dries of step (3) is added in extruder, extrusion and blow molding obtains thin film.
Embodiment 3
A kind of degradable combination film, is made up of the raw material of following weight portion：38 parts of polylactic acid, 18 parts of polyvinyl alcohol,
20 parts of starch, 14 parts of corn stalk powder, 10 parts of shitosan, 16 parts of lignocellulose, 9 parts of precipitated calcium carbonate, 6 parts of kieselguhr, trematodiasiss
9 parts of stone powder, 5 parts of zinc oxide, 4 parts of epoxy soybean oil, 1 part of defoamer；Wherein starch is corn starch, dehydrated potato powder, sweet potato powder
In at least one.
A kind of preparation method of degradable combination film, comprises the following steps：
(1) each raw material of corresponding weight portion is weighed respectively；
(2) polylactic acid, polyvinyl alcohol, starch, corn stalk powder, shitosan, lignocellulose are added in mixer,
Heating-up temperature is 85 DEG C, and rotating speed is 55r/min, and heat time heating time is 25min；It is subsequently adding precipitated calcium carbonate, kieselguhr, Vermiculitum
Powder, zinc oxide and epoxy soybean oil, it is 100 DEG C to adjust heating-up temperature, and rotating speed is 90r/min, and heat time heating time is 15min；Finally
Defoamer is added, continues stirring 5min, mix homogeneously obtains compound；
(3) by compound melt pelletization, then process is dried, baking temperature is 65 DEG C, and drying time is 70min；
(4) grain that dries of step (3) is added in extruder, extrusion and blow molding obtains thin film.
Embodiment 4
A kind of degradable combination film, is made up of the raw material of following weight portion：42 parts of polylactic acid, 20 parts of polyvinyl alcohol,
22 parts of starch, 15 parts of corn stalk powder, 11 parts of shitosan, 17 parts of lignocellulose, 10 parts of precipitated calcium carbonate, 7 parts of kieselguhr, trematodiasiss
10 parts of stone powder, 6 parts of zinc oxide, 5 parts of epoxy soybean oil, 2 parts of defoamer；Wherein starch is corn starch, dehydrated potato powder, sweet potato powder
In at least one.
A kind of preparation method of degradable combination film, comprises the following steps：
(1) each raw material of corresponding weight portion is weighed respectively；
(2) polylactic acid, polyvinyl alcohol, starch, corn stalk powder, shitosan, lignocellulose are added in mixer,
Heating-up temperature is 90 DEG C, and rotating speed is 55r/min, and heat time heating time is 30min；It is subsequently adding precipitated calcium carbonate, kieselguhr, Vermiculitum
Powder, zinc oxide and epoxy soybean oil, it is 105 DEG C to adjust heating-up temperature, and rotating speed is 95r/min, and heat time heating time is 18min；Finally
Defoamer is added, continues stirring 5min, mix homogeneously obtains compound；
(3) by compound melt pelletization, then process is dried, baking temperature is 75 DEG C, and drying time is 75min；
(4) grain that dries of step (3) is added in extruder, extrusion and blow molding obtains thin film.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all in essence of the invention
Any modification, equivalent and improvement that is made within god and principle etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of degradable combination film, it is characterised in that be made up of the raw material of following weight portion：
2. a kind of degradable combination film according to claim 1, it is characterised in that by the raw material group of following weight portion
Into：
3. a kind of degradable combination film according to claim 1, it is characterised in that by the raw material group of following weight portion
Into：
4. a kind of degradable combination film according to claim 1, it is characterised in that starch is corn starch, Ma Ling
At least one in potato starch, sweet potato powder.
5. a kind of preparation method of degradable combination film, it is characterised in that comprise the following steps：
(1) each raw material of corresponding weight portion is weighed respectively；
(2) polylactic acid, polyvinyl alcohol, starch, corn stalk powder, shitosan, lignocellulose are added in mixer, are heated
Temperature is 80-90 DEG C, and rotating speed is 50-60r/min, and heat time heating time is 20-30min；Be subsequently adding precipitated calcium carbonate, kieselguhr,
Vermiculite power, zinc oxide and epoxy soybean oil, it is 95-110 DEG C to adjust heating-up temperature, and rotating speed is 80-100r/min, and heat time heating time is
10-20min；Defoamer is eventually adding, continues stirring 5min, mix homogeneously obtains compound；
(3) by compound melt pelletization, then process is dried, baking temperature is 60-80 DEG C, and drying time is 60-
80min；
(4) grain that dries of step (3) is added in extruder, extrusion and blow molding obtains thin film.
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| CN107163464A (en) * | 2017-06-12 | 2017-09-15 | 太仓雅奥塑业有限公司 | A kind of water-soluble plastic packaging |
| CN107177178A (en) * | 2017-07-13 | 2017-09-19 | 闫博 | A kind of degradable combination film |
| CN107236269A (en) * | 2017-07-13 | 2017-10-10 | 闫博 | A kind of degradable combination film and preparation method thereof |
| CN107298834A (en) * | 2017-07-18 | 2017-10-27 | 南京工业职业技术学院 | A kind of degradable controlled release Multifunctional agricultural thin film and preparation method thereof |
| CN107353612A (en) * | 2017-07-13 | 2017-11-17 | 闫博 | A kind of preparation method of degradable combination film |
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