CN113024896A - Biodegradable preservative film and preparation method thereof - Google Patents
Biodegradable preservative film and preparation method thereof Download PDFInfo
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- CN113024896A CN113024896A CN201911350451.7A CN201911350451A CN113024896A CN 113024896 A CN113024896 A CN 113024896A CN 201911350451 A CN201911350451 A CN 201911350451A CN 113024896 A CN113024896 A CN 113024896A
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- biodegradable plastic
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
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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
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/04—Starch derivatives
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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
- 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
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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
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a biodegradable preservative film and a preparation method thereof, wherein the biodegradable preservative film comprises 40-60 parts of modified starch, 10-20 parts of chitosan, 5-10 parts of corn fiber, 5-10 parts of glycerol, 1-5 parts of antioxidant, 0.5-3 parts of antibacterial agent, 1-3 parts of toughening agent and 50-60 parts of deionized water in parts by weight, and the modified starch, the chitosan and the corn fiber are compounded, so that the material has good mechanical property and degradation property, the antioxidant and the antibacterial agent are both biological raw materials, and the material has good degradation property while the oxidation resistance and the antibacterial property of the material are improved.
Description
Technical Field
The invention relates to the technical field of preservative film materials, in particular to a biodegradable preservative film and a preparation method thereof.
Background
With the continuous development of economy in China, the demand of packaging materials such as preservative films and the like is increasing. The traditional preservative film material is mainly derived from petroleum-based materials such as Polyethylene (PE) and the like, and is difficult to treat after being discarded. If the waste water is treated by burning, a large amount of toxic byproducts are generated; if the landfill method is adopted, the traditional petroleum-based materials have long degradation period, and some petroleum-based materials have even more than 100 years, so that the serious 'white pollution' problem is caused.
The conventional preservative films are not easy to decompose in the environment due to poor degradability, so that the environmental protection performance is poor, and the preservative films also have the problems of plasticizer safety, substandard standards, high cost, fewer preservative films prepared by new raw material and new processes and the like.
Disclosure of Invention
The invention aims to provide a biodegradable preservative film and a preparation method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that: a biodegradable plastic wrap comprises the following components in parts by weight,
as a further optimization, the modified starch is prepared by modifying base starch by a modifier after the base starch is hydrolyzed by amylase.
As a further optimization, the base material starch is one of tapioca starch or broad bean starch.
As a further optimization, the modifier is zinc acetate.
Preferably, the antioxidant is one of olive oil, corn germ oil or tea seed oil.
As a further optimization, the bacteriostatic agent is one of garlic essential oil, cinnamon essential oil or clove essential oil.
As a further optimization, the toughening agent is an acrylate polymer.
The invention also provides a preparation method of the biodegradable preservative film, which comprises the following steps,
s1) preparing modified starch;
s2) adding the modified starch, the chitosan, the corn fiber and the glycerol into a stirring kettle, and uniformly stirring to obtain a main material mixture;
s3) adding the main material mixture, the antioxidant, the antibacterial agent and the toughening agent into a double-screw extruder, fully dissolving, fusing and reacting the materials, extruding, cooling with water, cutting, and blowing the film by a film blowing machine to obtain the finished film.
And as further optimization, in S1, uniformly mixing the base material starch and deionized water, stirring into paste, heating, adding amylase for hydrolysis, uniformly stirring, adding the modifier, continuously stirring for reaction for 40-50min, cooling, placing in a microwave device, performing microwave treatment for 10-12S, concentrating, drying and crushing to obtain the modified starch.
As a further optimization, the hydrolysis heating temperature is 60-80 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1. the modified starch, the chitosan and the corn fiber are compounded, so that the material has better mechanical property and degradation property, and meanwhile, the zinc acetate is used for modifying the base material starch, so that the hydrophilicity of the starch is improved, the viscosity and the film forming property of the starch are improved, and the tensile resistance of the material is enhanced;
2. the toughening agent is added into the material, so that the toughness and mechanical property of the material can be improved;
3. the antioxidant and the antibacterial agent both adopt biological raw materials, and have better degradation performance while improving the oxidation resistance and the antibacterial performance of the material.
Detailed Description
The following are specific examples of the present invention and further describe the technical solutions of the present invention, but the present invention is not limited to these examples.
Example 1
A biodegradable plastic wrap comprises the following components in parts by weight,
the preparation method comprises the following steps: s1) preparing a modified starch: uniformly mixing cassava starch and deionized water, stirring into paste, heating to 60 ℃, adding amylase for hydrolysis, uniformly stirring, adding zinc acetate, continuously stirring for reaction for 50min, cooling, placing in a microwave device, performing microwave treatment for 12s, concentrating, drying, and pulverizing to obtain modified starch. S2) adding the modified starch, the chitosan, the corn fiber and the glycerol into a stirring kettle, and uniformly stirring to obtain a main material mixture; s3) adding the main material mixture, olive oil, clove essential oil and acrylic ester polymer into a double-screw extruder, fully dissolving, fusing and reacting the materials, extruding, cooling with water, cutting, and blowing the film by a film blowing machine to obtain the finished film.
Example 2
A biodegradable plastic wrap comprises the following components in parts by weight,
the preparation method comprises the following steps: s1) preparing a modified starch: mixing broad bean starch and deionized water, stirring to obtain paste, heating to 80 deg.C, adding amylase for hydrolysis, stirring, adding zinc acetate, stirring, reacting for 50min, cooling, placing in a microwave device, microwave treating for 10s, concentrating, oven drying, and pulverizing to obtain modified starch. S2) adding the modified starch, the chitosan, the corn fiber and the glycerol into a stirring kettle, and uniformly stirring to obtain a main material mixture; s3) adding the main material mixture, olive oil, cinnamon essential oil and the acrylic ester polymer into a double-screw extruder, fully dissolving, fusing and reacting the materials, extruding, cooling with water, cutting, and blowing the film by a film blowing machine to obtain the finished film.
Example 3
A biodegradable plastic wrap comprises the following components in parts by weight,
the preparation method comprises the following steps: s1) preparing a modified starch: uniformly mixing cassava starch and deionized water, stirring into paste, heating to 70 ℃, adding amylase for hydrolysis, uniformly stirring, adding zinc acetate, continuously stirring for reaction for 50min, cooling, placing in a microwave device, performing microwave treatment for 10s, concentrating, drying, and pulverizing to obtain modified starch. S2) adding the modified starch, the chitosan, the corn fiber and the glycerol into a stirring kettle, and uniformly stirring to obtain a main material mixture; s3) adding the main material mixture, the corn germ oil, the cinnamon essential oil and the acrylic ester polymer into a double-screw extruder, fully dissolving, fusing and reacting the materials, extruding, cooling with water, cutting, and blowing the film by a film blowing machine to obtain the finished film.
Example 4
A biodegradable plastic wrap comprises the following components in parts by weight,
the preparation method comprises the following steps: s1) preparing a modified starch: mixing broad bean starch and deionized water, stirring to obtain paste, heating to 70 deg.C, adding amylase for hydrolysis, stirring, adding zinc acetate, stirring for 45min, cooling, placing in a microwave device, microwave treating for 12s, concentrating, oven drying, and pulverizing to obtain modified starch. S2) adding the modified starch, the chitosan, the corn fiber and the glycerol into a stirring kettle, and uniformly stirring to obtain a main material mixture; s3) adding the main material mixture, the tea seed oil, the garlic essential oil and the acrylic ester polymer into a double-screw extruder, fully dissolving, fusing and reacting the materials, extruding, cooling with water, cutting, and blowing the film by a film blowing machine to obtain the finished film.
Application examples
The preservative films prepared in the embodiments 1 to 4 and the conventional preservative films sold in the market are subjected to performance tests, the mechanical properties of the preservative films are measured according to GB/T13022-1991, the biodegradability test adopts a soil experiment method, the preservative films with certain mass are weighed and mixed with soil with certain mass, and the total mass is recorded; and then placing the soil sample mixed with the preservative film in the environment, weighing the quality of the soil sample after 90 days, recording the quality change, obtaining the degradation rate of the reduced mass compared with the original agricultural plastic film, and having high degradation performance with the reduced mass rate.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A biodegradable plastic wrap is characterized by comprising the following components in parts by weight,
2. the biodegradable plastic wrap according to claim 1, wherein the modified starch is prepared by hydrolyzing a base starch with amylase and modifying the hydrolyzed base starch with a modifier.
3. The biodegradable plastic wrap of claim 2, wherein the base starch is one of tapioca starch or broad bean starch.
4. The biodegradable plastic wrap of claim 2, wherein said modifier is zinc acetate.
5. The biodegradable plastic wrap of claim 1, wherein said antioxidant is one of olive oil, corn germ oil, or tea seed oil.
6. The biodegradable plastic wrap of claim 1, wherein the bacteriostatic agent is one of garlic essential oil, cinnamon essential oil or clove essential oil.
7. The biodegradable plastic wrap of claim 1, wherein the toughening agent is an acrylate polymer.
8. A method for preparing biodegradable plastic wrap according to any one of claims 1 to 7, characterized by comprising the steps of,
s1) preparing modified starch;
s2) adding the modified starch, the chitosan, the corn fiber and the glycerol into a stirring kettle, and uniformly stirring to obtain a main material mixture;
s3) adding the main material mixture, the antioxidant, the antibacterial agent and the toughening agent into a double-screw extruder, fully dissolving, fusing and reacting the materials, extruding, cooling with water, cutting, and blowing the film by a film blowing machine to obtain the finished film.
9. The method for preparing the biodegradable plastic wrap according to claim 8, wherein the modified starch is prepared by uniformly mixing and stirring the base material starch and deionized water to form a paste in S1, heating, adding amylase for hydrolysis, uniformly stirring, adding the modifier, continuously stirring for reaction for 40-50min, cooling, placing in a microwave device, performing microwave treatment for 10-12S, concentrating, drying and crushing.
10. The method for preparing biodegradable plastic wrap according to claim 9, wherein the hydrolysis heating temperature is 60-80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911350451.7A CN113024896A (en) | 2019-12-25 | 2019-12-25 | Biodegradable preservative film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911350451.7A CN113024896A (en) | 2019-12-25 | 2019-12-25 | Biodegradable preservative film and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788990A (en) * | 2021-09-28 | 2021-12-14 | 东莞世皓新材料生物科技有限公司 | Preparation method of food fresh-keeping packaging film material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1692834A (en) * | 2005-05-16 | 2005-11-09 | 陕西省科学院酶工程研究所 | Prepn. method of health-care beverage contg. apply vinegar |
| CN101671449A (en) * | 2009-09-09 | 2010-03-17 | 天津科技大学 | Edible composite film and preparation method thereof |
| CN101942117A (en) * | 2010-09-25 | 2011-01-12 | 梁靖 | Starch-based fully degraded packaging material and preparation method thereof |
| CN105482140A (en) * | 2016-02-01 | 2016-04-13 | 江苏时空涂料有限公司 | Preparation method of polylactic acid/starch surface grafted sulfuric acid aminated chitosan composite thin film |
| CN108623852A (en) * | 2018-04-24 | 2018-10-09 | 黄正农 | A kind of edible package of instant food and preparation method thereof |
| CN110183739A (en) * | 2019-05-28 | 2019-08-30 | 天津科技大学 | A kind of degradable scleroglucan natural complex fresh-keeping film and the preparation method and application thereof |
| CN110498950A (en) * | 2019-08-07 | 2019-11-26 | 华南理工大学 | A kind of thermoplastic starch and its preparation method and application based on coordination effect |
-
2019
- 2019-12-25 CN CN201911350451.7A patent/CN113024896A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1692834A (en) * | 2005-05-16 | 2005-11-09 | 陕西省科学院酶工程研究所 | Prepn. method of health-care beverage contg. apply vinegar |
| CN101671449A (en) * | 2009-09-09 | 2010-03-17 | 天津科技大学 | Edible composite film and preparation method thereof |
| CN101942117A (en) * | 2010-09-25 | 2011-01-12 | 梁靖 | Starch-based fully degraded packaging material and preparation method thereof |
| CN105482140A (en) * | 2016-02-01 | 2016-04-13 | 江苏时空涂料有限公司 | Preparation method of polylactic acid/starch surface grafted sulfuric acid aminated chitosan composite thin film |
| CN108623852A (en) * | 2018-04-24 | 2018-10-09 | 黄正农 | A kind of edible package of instant food and preparation method thereof |
| CN110183739A (en) * | 2019-05-28 | 2019-08-30 | 天津科技大学 | A kind of degradable scleroglucan natural complex fresh-keeping film and the preparation method and application thereof |
| CN110498950A (en) * | 2019-08-07 | 2019-11-26 | 华南理工大学 | A kind of thermoplastic starch and its preparation method and application based on coordination effect |
Non-Patent Citations (3)
| Title |
|---|
| LUO ZHIGANG 等: ""Preparation and Properties of Enzyme-Modified Cassava Starch−Zinc", 《JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY》 * |
| 杨柳 等: ""绿豆改性淀粉复合膜阻水性的研究"", 《粮食与饲料工业》 * |
| 闫承花 等编: "《化学纤维生产工艺学》", 31 January 2018, 东华大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113788990A (en) * | 2021-09-28 | 2021-12-14 | 东莞世皓新材料生物科技有限公司 | Preparation method of food fresh-keeping packaging film material |
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