CN114213822A - Modified green degradable material and preparation method thereof - Google Patents
Modified green degradable material and preparation method thereof Download PDFInfo
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- CN114213822A CN114213822A CN202111498772.9A CN202111498772A CN114213822A CN 114213822 A CN114213822 A CN 114213822A CN 202111498772 A CN202111498772 A CN 202111498772A CN 114213822 A CN114213822 A CN 114213822A
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- Prior art keywords
- degradable
- modified green
- resin material
- degradable material
- modified
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- 239000000463 material Substances 0.000 title claims abstract description 104
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 42
- 229920005989 resin Polymers 0.000 claims abstract description 42
- 230000007062 hydrolysis Effects 0.000 claims description 24
- 238000006460 hydrolysis reaction Methods 0.000 claims description 24
- 150000001718 carbodiimides Chemical class 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 8
- 238000010008 shearing Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 6
- 229920001896 polybutyrate Polymers 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 3
- 238000009264 composting Methods 0.000 abstract description 11
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000000655 anti-hydrolysis Effects 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 6
- 238000006065 biodegradation reaction Methods 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 4
- 229920000704 biodegradable plastic Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000002361 compost Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229920006238 degradable plastic Polymers 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
Abstract
The invention provides a modified green degradable material and a preparation method thereof, and relates to the technical field of degradable materials. The modified green degradable material comprises, by mass, 99.0-99.7% of a degradable resin material and 0.3-1% of an anti-hydrolysis agent. According to the invention, the degradable resin material and the anti-hydrolysis agent are blended and modified at a specific ratio, so that the obtained modified green degradable material can meet the requirement that the material performance is not obviously reduced under the high-temperature and high-humidity condition, thereby expanding the application range of the modified green degradable material in some special environments (such as long-term shipping conditions), and can be completely biodegraded under the composting condition to meet the requirement of environmental protection, so that the modified green degradable material has a wide application prospect.
Description
Technical Field
The invention relates to the technical field of degradable materials, and particularly relates to a modified green degradable material and a preparation method thereof.
Background
The plastic packaging bag is an indispensable component of a plurality of products, which not only ensures the distribution efficiency of the products, but also prolongs the storage life of the products. With the gradual improvement of green and environmental laws and regulations of governments, particularly, strict environmental requirements are imposed on packaging bags in the European Union and the English Federal, that is, the use of environment-friendly biodegradable plastic bags is required. The main component of existing degradable plastic bags is a blend of PBAT and PLA. The degradable plastic bag can be completely biodegraded within about half a year under the condition of compost, thereby being an environment-friendly biodegradable plastic bag.
Currently, world trade is increasingly frequent to make large quantities of products outsourced in the united states or europe and the like. In the process of transporting products, the shipping time is longer, so that special requirements are imposed on packaging bags for selling the products, namely, biodegradation does not occur within two years under the shipping condition. However, the shipping conditions are generally high temperature, high humidity and high salinity, which easily causes biodegradation of the biodegradable material, and further causes the surfaces of the biodegradable plastic bags to be sticky and the usability to be reduced. Therefore, the research and preparation of a packaging bag material which can be normally used under the condition of shipping and can be completely biodegraded under the condition of composting after being used becomes a problem to be solved in the industry.
Disclosure of Invention
The invention aims to provide a modified green degradable material, which is prepared by blending and modifying a degradable resin material and an anti-hydrolysis agent in proportion, can meet the requirement that the material performance does not obviously decline under the condition of high temperature and high humidity, and can realize complete biodegradation under the composting condition.
The invention also aims to provide a preparation method of the modified green degradable material, which is simple, controllable in parameters and suitable for industrial large-scale production.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
The invention provides a modified green degradable material which comprises the following components in percentage by mass: 99.0-99.7% of degradable resin material and 0.3-1% of hydrolysis resistant agent.
Further, the paint comprises the following components in percentage by mass: 99.7 percent of degradable resin material and 0.3 percent of hydrolytic resistance agent.
Further, the paint comprises the following components in percentage by mass: 99.5% degradable resin material and 0.5% hydrolysis resistant agent.
Further, the paint comprises the following components in percentage by mass: 99.2% degradable resin material and 0.8% hydrolysis resistant agent.
Further, the paint comprises the following components in percentage by mass: 99% degradable resin material and 1% hydrolysis resistant agent.
Further, the degradable resin material comprises a blend of PBAT and PLA.
Further, the hydrolysis resistant agent is a soluble oligomer comprising a carbodiimide-based polymer.
The invention provides a preparation method of a modified green degradable material, which comprises the following steps:
s1, weighing the components according to the mass percentage of the modified green degradable material in any one of claims 1-5;
and S2, uniformly dispersing the hydrolysis resisting agent in the degradable resin material after screw high-speed shearing to obtain the modified green degradable material.
The modified green degradable material and the preparation method thereof have the beneficial effects that:
the modified green degradable material comprises 99.0-99.7% of degradable resin material (BGM) and 0.3-1% of hydrolysis resistant agent by mass percentage. The modified green degradable material obtained by blending and modifying the degradable resin material and the anti-hydrolysis agent in a specific ratio can meet the requirement that the material performance is not obviously reduced under the conditions of high temperature and high humidity, so that the application range of the modified green degradable material in some special environments (such as long-term shipping conditions) is expanded, and meanwhile, the modified green degradable material can be completely biodegraded under the composting condition to meet the requirement of green environmental protection, so that the modified green degradable material has a wide application prospect.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The modified green degradable material and the preparation method thereof of the embodiment of the invention are specifically described below.
The embodiment of the invention provides a modified green degradable material which comprises the following components in percentage by mass: 99.0-99.7% of degradable resin material and 0.3-1% of hydrolysis resistant agent. According to the invention, the degradable resin material and the hydrolysis resistant agent are blended and modified at a specific ratio, so that the obtained modified green degradable material can meet the requirement that the material performance is not obviously reduced under the high-temperature and high-humidity condition, and the application range of the modified green degradable material in certain special environments (such as long-term shipping conditions) can be expanded. Meanwhile, the composite material can be completely biodegraded under the composting condition so as to meet the requirement of environmental protection.
Further, in a preferred embodiment of the invention, the composition comprises the following components in percentage by mass: 99.7 percent of degradable resin material and 0.3 percent of hydrolytic resistance agent.
Further, in a preferred embodiment of the invention, the composition comprises the following components in percentage by mass: 99.5% degradable resin material and 0.5% hydrolysis resistant agent. The modified green degradable material prepared in the proportion can realize no obvious reduction of material performance under the condition of ensuring lower cost, and is suitable for packaging products in actual transportation.
Further, in a preferred embodiment of the invention, the composition comprises the following components in percentage by mass: 99.2% degradable resin material and 0.8% hydrolysis resistant agent.
Further, in a preferred embodiment of the invention, the composition comprises the following components in percentage by mass: 99% degradable resin material and 1% hydrolysis resistant agent.
Further, in a preferred embodiment of the invention, the degradable resin material comprises a blend of PBAT and PLA. The degradable resin material used in the present invention is commercially available, and for example, the degradable resin material is available from Wagawa Renshi Co., Ltd.
Further, in a preferred embodiment of the present invention, the hydrolysis resistant agent is a soluble oligomer comprising a carbodiimide-based polymer. The hydrolysis resistant agent used in the present invention is commercially available, and for example, carbodiimide-based polymers are available from Shanghai Langyi New functional materials Co.Ltd.
The invention provides a preparation method of a modified green degradable material, which comprises the following steps:
s1, weighing the components according to the mass percentage of the modified green degradable material;
and S2, uniformly dispersing the hydrolysis resisting agent in the degradable resin material after screw high-speed shearing to obtain the modified green degradable material.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
The modified green degradable material provided by the embodiment is prepared according to the following steps:
the components are respectively weighed according to the mass percentage of 99.7 percent of degradable resin material and 0.3 percent of carbodiimide polymer.
And (3) carrying out screw high-speed shearing on the carbodiimide polymer, and then uniformly dispersing the carbodiimide polymer in the degradable resin material to obtain the modified green degradable material.
Example 2
The modified green degradable material provided by the embodiment is prepared according to the following steps:
the components are respectively weighed according to the mass percentage of 99.5 percent of degradable resin material and 0.5 percent of carbodiimide polymer.
And (3) carrying out screw high-speed shearing on the carbodiimide polymer, and then uniformly dispersing the carbodiimide polymer in the degradable resin material to obtain the modified green degradable material.
Example 3
The modified green degradable material provided by the embodiment is prepared according to the following steps:
the components are respectively weighed according to the mass percentage of 99.2 percent of degradable resin material and 0.8 percent of carbodiimide polymer.
And (3) carrying out screw high-speed shearing on the carbodiimide polymer, and then uniformly dispersing the carbodiimide polymer in the degradable resin material to obtain the modified green degradable material.
Example 4
The modified green degradable material provided by the embodiment is prepared according to the following steps:
weighing the components according to the mass percentage of 99 percent of degradable resin material and 1 percent of carbodiimide polymer respectively.
And (3) carrying out screw high-speed shearing on the carbodiimide polymer, and then uniformly dispersing the carbodiimide polymer in the degradable resin material to obtain the modified green degradable material.
Comparative example 1
This comparative example provides a degradable resin material available from Renpo plastics, Inc. of Dongguan, under the designation GN 600F.
Test example 1
In the test example, the degradation rate of the modified green degradable materials of examples 1 to 4 and the degradable resin material of comparative example 1 was studied by performing a composting test, and the specific steps were as follows:
(1) and respectively carrying out injection molding and proofing on the modified green degradable materials in the embodiments 1-4 and the degradable resin material in the comparative example 1 to obtain a standard sample strip.
(2) Proper amount of water is added into the flower fertilizer culture soil, and the flower fertilizer culture soil is evenly piled in 5 large wash basins to construct 5 simple composting environments.
(3) The standard sample strips of the modified green degradable materials of examples 1 to 4 and the standard sample strips of the degradable resin material of comparative example 1 were respectively taken by 9.6g, and placed in the 5 large basins correspondingly.
(4) And (4) after 120 days of composting, taking out 5 parts of sample strips in the step (3), cleaning, drying and weighing. The weighing results are shown in table 1:
TABLE 1 weight change table of modified Green degradable Material and degradable resin Material
| Comparative example 1 | Example 1 | Example 2 | Example 3 | Example 4 | |
| Weight before composting/g | 9.60 | 9.60 | 9.60 | 9.60 | 9.60 |
| Weight/g after composting | 9.35 | 9.40 | 9.53 | 9.52 | 9.60 |
Although the test example is carried out under the condition of simple compost, and the sample strip is not a sample of the blow molding plastic bag, the experimental process strictly adopts a variable control method, so that the experimental conclusion is not influenced. From the experimental results of table 1, it can be seen that the biodegradation rate of the modified green degradable material gradually decreases with the increase of the content of the hydrolysis resistant agent. When the hydrolysis resistance reached 1.0%, almost no biodegradation occurred under the composting conditions of this experiment. The cost and the actual use requirement are comprehensively considered, and the modified green degradable material modified by using 0.5 percent of hydrolysis resistant agent can simultaneously meet the two requirements of lower cost and no obvious reduction of material performance under the condition of high temperature and high humidity.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (8)
1. The modified green degradable material is characterized by comprising the following components in percentage by mass: 99.0-99.7% of degradable resin material and 0.3-1% of hydrolysis resistant agent.
2. The modified green degradable material of claim 1, which is characterized by comprising the following components in percentage by mass: 99.7 percent of degradable resin material and 0.3 percent of hydrolytic resistance agent.
3. The modified green degradable material of claim 1, which is characterized by comprising the following components in percentage by mass: 99.5% degradable resin material and 0.5% hydrolysis resistant agent.
4. The modified green degradable material of claim 1, which is characterized by comprising the following components in percentage by mass: 99.2% degradable resin material and 0.8% hydrolysis resistant agent.
5. The modified green degradable material of claim 1, which is characterized by comprising the following components in percentage by mass: 99% degradable resin material and 1% hydrolysis resistant agent.
6. The modified green degradable material of claim 1, wherein the degradable resin material comprises a blend of PBAT and PLA.
7. The modified green degradable material of claim 1 wherein the hydrolysis resistant agent is a soluble oligomer comprising carbodiimide based polymers.
8. The preparation method of the modified green degradable material is characterized by comprising the following steps:
s1, weighing the components according to the mass percentage of the modified green degradable material in any one of claims 1-5;
and S2, uniformly dispersing the hydrolysis resisting agent in the degradable resin material after screw high-speed shearing to obtain the modified green degradable material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111498772.9A CN114213822A (en) | 2021-12-09 | 2021-12-09 | Modified green degradable material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111498772.9A CN114213822A (en) | 2021-12-09 | 2021-12-09 | Modified green degradable material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114213822A true CN114213822A (en) | 2022-03-22 |
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Family Applications (1)
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| CN202111498772.9A Pending CN114213822A (en) | 2021-12-09 | 2021-12-09 | Modified green degradable material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1180522A (en) * | 1997-07-09 | 1999-03-26 | Nisshinbo Ind Inc | Biodegradable plastic composition and control of biodegradation rate of biodegradable plastic |
| DE10146328A1 (en) * | 2001-09-20 | 2003-04-10 | Basf Ag | Thermoplastic molding composition, used in blends, molded parts, films and fibers, comprises polyester, carbodiimide and additives |
| JP2005281678A (en) * | 2004-03-02 | 2005-10-13 | Mitsubishi Chemicals Corp | Aliphatic polyester resin composition and its molded product |
| CN1708533A (en) * | 2002-04-24 | 2005-12-14 | 索尼株式会社 | Molded polyester for housing |
| US20110213102A1 (en) * | 2008-09-29 | 2011-09-01 | Terumo Kabushiki Kaisha | Medical device, medical material and method for making same |
| CN105940052A (en) * | 2014-02-05 | 2016-09-14 | 日清纺化学株式会社 | Polyester-based resin composition, production method for said polyester-based resin composition, and molded article using said polyester-based resin composition |
| WO2017057703A1 (en) * | 2015-10-01 | 2017-04-06 | 日清紡ケミカル株式会社 | Resin additive, and master batch and resin composition using same |
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| CN111154243A (en) * | 2020-01-16 | 2020-05-15 | 南京大学 | Bio-based compostable degradable heat-resistant film composite material and preparation method thereof |
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-
2021
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| DE10146328A1 (en) * | 2001-09-20 | 2003-04-10 | Basf Ag | Thermoplastic molding composition, used in blends, molded parts, films and fibers, comprises polyester, carbodiimide and additives |
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| JP2005281678A (en) * | 2004-03-02 | 2005-10-13 | Mitsubishi Chemicals Corp | Aliphatic polyester resin composition and its molded product |
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