CN109957140A - A kind of method for recycling of the hybrid PET plastic products of environment-friendly type - Google Patents
A kind of method for recycling of the hybrid PET plastic products of environment-friendly type Download PDFInfo
- Publication number
- CN109957140A CN109957140A CN201711499985.7A CN201711499985A CN109957140A CN 109957140 A CN109957140 A CN 109957140A CN 201711499985 A CN201711499985 A CN 201711499985A CN 109957140 A CN109957140 A CN 109957140A
- Authority
- CN
- China
- Prior art keywords
- plastic products
- pet plastic
- recycling
- hybrid pet
- cutinase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/105—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with enzymes
-
- 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
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Abstract
A kind of method for recycling of the hybrid PET plastic products of environment-friendly type disclosed by the invention, the method includes the hybrid PET plastic products are exposed to depolymerase, and recycle monomer and/or oligomer, the depolymerase is selected from cutinase, lipase and esterase, the cutinase is selected from macro genomic library or the microorganism selected from synthesis cutinase, pre-treatment step of the hybrid PET plastic products before being exposed to the depolymerase, the hybrid PET plastic products are mechanical and/or physically and/or chemically and/or biological modification；Method of the invention may be used to the hybrid PET plastic products recycling of the layer one by one comprising different plastic materials, and the layer can have different length, thickness etc..The layer can completely or only part is overlapped.
Description
Technical field
The present invention relates to a kind of method for recycling of the hybrid PET plastic products of environment-friendly type.
Background technique
PET is plastics of closed-loop recirculatory the most in the world.In general, PET waste is continuously handled, generate again
The PET (rPET) of circulation.PET waste (mainly bottle) is collected, classifies, briquetting, crushing, washing, being cut into fractionlet, melting
Be extruded into spherolite and sale.Then, the fabric or new package material that the PET of recycling can be used for building articles of dress are for example
Bottle or blister package, etc..This method is suitable for containing only the pure plastics stream of PET.However, this method be not suitable for containing
Different from the plastic product of other components of PET, there is also another methods for making PET plastic recycling, referred to as " chemistry
Recycling " allows to recycle the ingredient of the polymer using chemical catalyst.Monomer and/or oligomer generated then can
For remanufacturing plastics or manufacturing other synthesis of chemicals.However, up to the present, such chemical re-circulation is only purifying
Polymer on carry out, it is invalid to the composite plastic product being made of the mixture of polymer and other compounds and additive；
Since its weight is low, intensity is high, gas permeability is low and since PET does not have the fact that ill-effect to human health, PET is used extensively
In manufacture by PET and other components, include but is not limited to other polymers, metallic, glass particle or fiber, the wooden component,
The mixed plastic product of the compositions such as carbon fiber.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of recycling sides of the hybrid PET plastic products of environment-friendly type
Method the method includes the hybrid PET plastic products are exposed to depolymerase, and recycles monomer and/or oligomer, the solution
Poly- enzyme is selected from cutinase, lipase and esterase, and the cutinase is selected from macro genomic library or micro- life selected from synthesis cutinase
Object, pre-treatment step of the hybrid PET plastic products before being exposed to the depolymerase, by the hybrid PET plastics
Products machinery and/or physically and/or chemically and/or biological modification.
Preferably, the cutinase is selected from macro genomic library or the microorganism selected from synthesis cutinase, as brown likes heat
Split spore bacterium, white happiness hot tearing spore bacterium, Bacillus subtillis, Fusarinm solani and Humicola insolens.
Preferably, the hybrid PET plastic products include the mixing of the layer and/or PET and the other components of each component
Object and/or be PET composite material.
Preferably, wherein the mixture of the other components is selected from polyester, polyamide, polyolefin and ethylene based mixtures.
Preferably, wherein the microorganism is the weight with the modified metabolism for preventing from consuming monomer/oligomer generated
Group microorganism and/or expression and the recombinant microorganism for secreting recombination depolymerase.
The advantages and positive effects of the present invention are: method of the invention may be used to comprising different plastic materials
The hybrid PET plastic products recycling of layer one by one.The layer can have different length, thickness etc..The layer can completely,
Or only part overlapping.The layer can be during manufacture by special processing etc., with special adhesive bond.Specific
In embodiment, one in the layer adhesive formed between the pet layer and another layer of the plastic products.It is such
The example of mixed plastic product includes plastic bottle, packaging material for food, plastic bubble cap, plastics plastic uptake etc..
Specific embodiment
Below with reference to embodiment, further description of the specific embodiments of the present invention, and following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
A kind of method for recycling of the hybrid PET plastic products of environment-friendly type of present embodiment, the method includes by institute
It states hybrid PET plastic products and is exposed to depolymerase, and recycle monomer and/or oligomer, the depolymerase is selected from cutinase, fat
Enzyme and esterase, the cutinase are selected from macro genomic library or the microorganism selected from synthesis cutinase, the hybrid PET plastics system
Pre-treatment step of the product before being exposed to the depolymerase, by the hybrid PET plastic products are mechanical and/or physics and/
Or chemical and/or biological modification.
The cutinase be selected from macro genomic library or selected from synthesis cutinase microorganism, as thermobifida fusca,
White happiness hot tearing spore bacterium, Bacillus subtillis, Fusarinm solani and Humicola insolens.
The hybrid PET plastic products include the layer of each component and/or the mixture of PET and the other components and/or
It is PET composite material.
Wherein the mixture of the other components is selected from polyester, polyamide, polyolefin and ethylene based mixtures.
Wherein the microorganism is the recombinant microorganism with the modified metabolism for preventing from consuming monomer/oligomer generated
And/or express and secrete the recombinant microorganism of recombination depolymerase.
The advantages and positive effects of the present invention are: method of the invention may be used to comprising different plastic materials
The hybrid PET plastic products recycling of layer one by one.The layer can have different length, thickness etc..The layer can completely,
Or only part overlapping.The layer can be during manufacture by special processing etc., with special adhesive bond.Specific
In embodiment, one in the layer adhesive formed between the pet layer and another layer of the plastic products.It is such
The example of mixed plastic product includes plastic bottle, packaging material for food, plastic bubble cap, plastics plastic uptake etc..
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (5)
1. a kind of method for recycling of the hybrid PET plastic products of environment-friendly type, which is characterized in that the method includes will be described mixed
Close PET plastic product and be exposed to depolymerase, and recycle monomer and/or oligomer, the depolymerase be selected from cutinase, lipase and
Esterase, the cutinase is selected from macro genomic library or the microorganism selected from synthesis cutinase, the hybrid PET plastic products exist
The pre-treatment step being exposed to before the depolymerase, by the hybrid PET plastic products machinery and/or physics and/or change
And/or biological modification.
2. a kind of method for recycling of the hybrid PET plastic products of environment-friendly type according to claim 1, it is characterised in that:
The cutinase is selected from macro genomic library or the microorganism selected from synthesis cutinase, such as thermobifida fusca, white happiness heat
Split spore bacterium, Bacillus subtillis, Fusarinm solani and Humicola insolens.
3. a kind of method for recycling of the hybrid PET plastic products of environment-friendly type according to claim 1, it is characterised in that:
The hybrid PET plastic products include the layer of each component and/or the mixture of PET and the other components and/or are PET compound
Material.
4. a kind of method for recycling of the hybrid PET plastic products of environment-friendly type according to claim 3, it is characterised in that:
Wherein the mixture of the other components is selected from polyester, polyamide, polyolefin and ethylene based mixtures.
5. a kind of method for recycling of the hybrid PET plastic products of environment-friendly type according to claim 1, it is characterised in that:
Wherein the microorganism is recombinant microorganism and/or table with the modified metabolism for preventing from consuming monomer/oligomer generated
Reach and secrete the recombinant microorganism of recombination depolymerase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499985.7A CN109957140A (en) | 2017-12-26 | 2017-12-26 | A kind of method for recycling of the hybrid PET plastic products of environment-friendly type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499985.7A CN109957140A (en) | 2017-12-26 | 2017-12-26 | A kind of method for recycling of the hybrid PET plastic products of environment-friendly type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109957140A true CN109957140A (en) | 2019-07-02 |
Family
ID=67022971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711499985.7A Pending CN109957140A (en) | 2017-12-26 | 2017-12-26 | A kind of method for recycling of the hybrid PET plastic products of environment-friendly type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109957140A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022123421A1 (en) * | 2020-12-09 | 2022-06-16 | Innovazione E Sviluppo Sostenibile S.r.l. | Plastic-degrading solution |
| CN114829474A (en) * | 2019-12-19 | 2022-07-29 | 卡比奥斯公司 | Method for degrading plastic products |
| CN114846064A (en) * | 2019-12-19 | 2022-08-02 | 卡比奥斯公司 | Method for degrading plastic products |
-
2017
- 2017-12-26 CN CN201711499985.7A patent/CN109957140A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114829474A (en) * | 2019-12-19 | 2022-07-29 | 卡比奥斯公司 | Method for degrading plastic products |
| CN114846064A (en) * | 2019-12-19 | 2022-08-02 | 卡比奥斯公司 | Method for degrading plastic products |
| WO2022123421A1 (en) * | 2020-12-09 | 2022-06-16 | Innovazione E Sviluppo Sostenibile S.r.l. | Plastic-degrading solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190702 |
|
| WD01 | Invention patent application deemed withdrawn after publication |