CN108384051A - A kind of recovery method of safeguard film for cellular phone base material and its application - Google Patents
A kind of recovery method of safeguard film for cellular phone base material and its application Download PDFInfo
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- CN108384051A CN108384051A CN201810240244.5A CN201810240244A CN108384051A CN 108384051 A CN108384051 A CN 108384051A CN 201810240244 A CN201810240244 A CN 201810240244A CN 108384051 A CN108384051 A CN 108384051A
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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
- C08J11/18—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 organic material
- C08J11/22—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 organic material by treatment with organic oxygen-containing compounds
- C08J11/24—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 organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
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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
- C08J2367/02—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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention belongs to the recovery methods and its application of resource regeneration field more particularly to a kind of safeguard film for cellular phone base material.The present invention provides a kind of recovery methods of safeguard film for cellular phone base material, are：Pretreatment, stock, adhesive decomposes and post-processing.The present invention also provides a kind of application of recovery method including described in any of the above one in the recycling of PET base material, PE base materials, PVC base and PP base materials.Using easy, quick, low-cost mode recycling can be achieved to the waste mobile phone film of multiple types base material, reconstituted product purity is good in technical solution provided by the invention.A kind of recovery method of safeguard film for cellular phone base material provided by the invention and its application, solve in the prior art, the technological deficiency of the reconstituted product purity difference after the recycling of waste mobile phone protective film.
Description
Technical field
The invention belongs to the recovery methods and its application of resource regeneration field more particularly to a kind of safeguard film for cellular phone base material.
Background technology
Nearly ten years, the consumption figure of safeguard film for cellular phone drastically expands, annual output amount about nearly 10,000,000,000.Since safeguard film for cellular phone has
There is extremely strong chemical inertness, it is difficult to by natural degradations such as air or microorganisms, can build up and occupy a large amount of space, from
And cause serious environmental problem.On the other hand, world energy sources crisis causes to synthesize as initial feed using crude oil or natural gas
The production cost increases for high molecular material, and spent high molecular material has recycling well as a kind of cheap and abundant resource
The value utilized.Therefore, the base material of resource utilization waste mobile phone protective film has larger economic benefit and environmental benefit.
Waste mobile phone protective film, which recycles to have become, puts problem in the urgent need to address in face of China scientific worker.
In the prior art, products therefrom is mainly used for Remanufacture by waste mobile phone protective film recovery technology mainly using cleaning removal of impurities
Low-grade product, reconstituted product purity are poor.
Therefore, recovery method and its application for developing a kind of safeguard film for cellular phone base material in the prior art, are given up for solving
The technological deficiency of reconstituted product purity difference after old safeguard film for cellular phone recycling, becomes those skilled in the art's problem.
Invention content
In view of this, the present invention provides a kind of recovery method of safeguard film for cellular phone base material and its application, it is existing for solving
Have in technology, the technological deficiency of the reconstituted product purity difference after the recycling of waste mobile phone protective film.
The present invention provides a kind of recovery method of safeguard film for cellular phone base material, the recovery method is：
Step 1: pretreatment：Safeguard film for cellular phone to be recycled is preprocessed, obtains the first product；
Step 2: stock：After additive is mixed with water, pH adjusting agent is added and adjusts pH to 3~14, obtains the second product, institute
Additive is stated to be selected from：It is one or more in ethyl alcohol, ethylene glycol and glycerine；
Step 3: adhesive decomposes：First product is immersed in second product, stirs, obtains third product；
Step 4: post-processing：The third product is cleaned with after drying, obtains recycling base material.
Preferably, in step 2, in terms of mass parts, the rate of charge of the additive and water is 1:(50~400).
Preferably, in step 2, the pH adjusting agent is strong acid and/or highly basic.
Preferably, the strong acid is selected from：Any one or more in the concentrated sulfuric acid, concentrated hydrochloric acid and concentrated nitric acid；
The highly basic is selected from：NaOH、KOH、Na2CO3In any one or more.
Preferably, in step 1, the pretreated method is washing, and the number of the washing is 1~5 time.
Preferably, in step 3, in terms of mass parts, the rate of charge of first product and second product is 1:(30
~100).
Preferably, in step 3, the temperature of the stirring is 25~100 DEG C, and the time of the stirring is 30~100min,
200~1800r/min of rotating speed of the stirring.
Preferably, in step 4, the method for the cleaning is rinsed for water, and the number of the cleaning is 1~5 time.
Preferably, in step 4, the temperature of the drying is 30~60 DEG C, and the time of the drying is 60~180min.
The present invention also provides a kind of recovery methods including described in any of the above one in PET base material, PE base materials, PVC
Application in base material and the recycling of PP base materials.
In conclusion the present invention provides a kind of recovery method of safeguard film for cellular phone base material, it is：Step 1: pretreatment：It waits for
It is preprocessed to recycle safeguard film for cellular phone, obtains the first product；Step 2: stock：After additive is mixed with water, pH adjusting agent tune is added
PH to 3~14 is saved, obtains the second product, the additive is selected from：It is one or more in ethyl alcohol, ethylene glycol and glycerine；Step
Rapid three, adhesive decomposes：First product is immersed in second product, stirs, obtains third product；After Step 4:
Processing：The third product is cleaned with after drying, obtains recycling base material.Include any of the above one the present invention also provides one kind
Application of the recovery method in the recycling of PET base material, PE base materials, PVC base and PP base materials.Technology provided by the invention
Recycling, regeneration can be achieved to the waste mobile phone film of multiple types base material using easy, quick, low-cost mode in scheme
Good product purity.A kind of recovery method of safeguard film for cellular phone base material provided by the invention and its application, solve in the prior art,
The technological deficiency of reconstituted product purity difference after the recycling of waste mobile phone protective film.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is that an embodiment of the present invention provides a kind of flow diagrams of the recovery method of safeguard film for cellular phone base material；
Fig. 2 is infrared spectrogram of the safeguard film for cellular phone to be recycled before recycling in the embodiment of the present invention 1；
Fig. 3 is infrared spectrogram of the safeguard film for cellular phone to be recycled after recycling in the embodiment of the present invention 1.
Specific implementation mode
An embodiment of the present invention provides a kind of recovery method of safeguard film for cellular phone base material and its applications, for solving existing skill
In art, the technological deficiency of the reconstituted product purity difference after the recycling of waste mobile phone protective film.
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
In order to which the present invention is described in more detail, with reference to embodiment to provided by the invention, it is specifically described.
Embodiment 1
The present embodiment is the specific embodiment for handling Mobile phone film 1 to be recycled, wherein.The base material of Mobile phone film 1 to be recycled is PET
Base material.
Safeguard film for cellular phone 1 to be recycled rinses 1 time through clear water, removes surface impurity and dust, obtains the first product 1.
Ethyl alcohol is with water according to mass ratio 50:After 1 mixing, NaOH is added and adjusts pH to 14, obtains the second product 1.
First product 1 is immersed in the second product 1, normal pressure is stirred with the rotating speed of 200r/min under the conditions of 25 DEG C
30min obtains third product 1；Wherein, the mass ratio of the first product 1 and the second product 1 is 1:30.
After 1 clear water of third product rinses 1 time, 120min is dried at 30 DEG C, must recycle base material 1.
Embodiment 2
The present embodiment is the specific embodiment for handling Mobile phone film 2 to be recycled, wherein.The base material of Mobile phone film 2 to be recycled is PE
Base material.
Safeguard film for cellular phone 2 to be recycled rinses 5 times through clear water, removes surface impurity and dust, obtains the first product 2.
Ethylene glycol is with water according to mass ratio 400:After 1 mixing, the concentrated sulfuric acid is added and adjusts pH to 3, obtains the second product 2.
First product 2 is immersed in the second product 2, normal pressure is stirred with the rotating speed of 500r/min under the conditions of 70 DEG C
60min obtains third product 1；Wherein, the mass ratio of the first product 2 and the second product 2 is 1:60.
After 2 clear water of third product rinses 3 times, 90min is dried at 40 DEG C, must recycle base material 2.
Embodiment 3
The present embodiment is the specific embodiment for handling Mobile phone film 3 to be recycled, wherein the base material of Mobile phone film 3 to be recycled is PVC
Base material.
Safeguard film for cellular phone 3 to be recycled rinses 2 times through clear water, removes surface impurity and dust, obtains the first product 3.
Glycerine is with water according to mass ratio 100:After 1 mixing, Na is added2CO3PH to 9 is adjusted, the second product 3 is obtained.
First product 3 is immersed in the second product 3, normal pressure is stirred with the rotating speed of 500r/min under the conditions of 70 DEG C
60min obtains third product 3；Wherein, the mass ratio of the first product 3 and the second product 3 is 1:60.
After 3 clear water of third product rinses 3 times, 60min is dried at 40 DEG C, must recycle base material 3.
Embodiment 4
The present embodiment is the specific embodiment for handling Mobile phone film 4 to be recycled, wherein the base material of Mobile phone film 4 to be recycled is PP
Base material.
Safeguard film for cellular phone 4 to be recycled rinses 2 times through clear water, removes surface impurity and dust, obtains the first product 4.
Ethylene glycol is with water according to mass ratio 50:After 1 mixing, concentrated nitric acid is added and adjusts pH to 5, obtains the second product 4.
First product 4 is immersed in the second product 4, normal pressure is stirred with the rotating speed of 200r/min under the conditions of 90 DEG C
30min obtains third product 4；Wherein, the mass ratio of the first product 4 and the second product 4 is 1:80.
After 4 clear water of third product rinses 2 times, 180min is dried at 60 DEG C, must recycle base material 4.
Embodiment 5
The present embodiment is the specific embodiment for handling Mobile phone film 5 to be recycled, wherein.The base material of Mobile phone film 5 to be recycled is PVC
Base material.
Safeguard film for cellular phone 5 to be recycled rinses 3 times through clear water, removes surface impurity and dust, obtains the first product 5.
Glycerine is with water according to mass ratio 100:After 1 mixing, KOH is added and adjusts pH to 11, obtains the second product 5.
First product 5 is immersed in the second product 5, normal pressure is stirred with the rotating speed of 300r/min under the conditions of 35 DEG C
75min obtains third product 1；Wherein, the mass ratio of the first product 5 and the second product 5 is 1:50.
After 5 clear water of third product rinses 3 times, 90min is dried at 30 DEG C, must recycle base material 1.
Embodiment 6
The present embodiment is the specific embodiment for handling Mobile phone film 6 to be recycled, wherein the base material of Mobile phone film 6 to be recycled is PE
Base material.
Safeguard film for cellular phone 6 to be recycled rinses 5 times through clear water, removes surface impurity and dust, obtains the first product 6.
Ethyl alcohol is with water according to mass ratio 20:After 1 mixing, concentrated hydrochloric acid is added and adjusts pH to 4, obtains the second product 6.
First product 6 is immersed in the second product 6, normal pressure is stirred with the rotating speed of 800r/min under the conditions of 55 DEG C
90min obtains third product 6；Wherein, the mass ratio of the first product 6 and the second product 6 is 1:40.
After 6 clear water of third product rinses 3 times, 150min is dried at 30 DEG C, must recycle base material 6.
Embodiment 7
The present embodiment is the specific embodiment of the recovering effect for the recycling base material 1~6 for verifying Examples 1 to 6 recycling gained.
Fig. 2 is the infrared spectrum of safeguard film for cellular phone 1 to be recycled in embodiment 1, wherein is located at 1250cm on infrared spectrum-1
The peak at place is C-O stretching vibrations characteristic absorption band on adhesive；Fig. 3 recycles the INFRARED SPECTRUM of base material in embodiment 1, treated
Figure, can significantly find out from Fig. 3, be located at 1250cm-1The peak at place is that C-O stretching vibrations characteristic absorption band is apparent on adhesive
It disappears, illustrates, in embodiment 1, the recovery method provided through the invention can effectively remove adhesive, obtain pure base material.
To in embodiment 2~6, the Mobile phone film before recycling and after recycling repeats above-mentioned experiment, and similar experiment can be obtained
As a result, details are not described herein.
In conclusion the present invention provides a kind of recovery method of safeguard film for cellular phone base material, it is：Step 1: pretreatment：It waits for
It is preprocessed to recycle safeguard film for cellular phone, obtains the first product；Step 2: stock：After additive is mixed with water, pH adjusting agent tune is added
PH to 3~14 is saved, obtains the second product, the additive is selected from：It is one or more in ethyl alcohol, ethylene glycol and glycerine；Step
Rapid three, adhesive decomposes：First product is immersed in second product, stirs, obtains third product；After Step 4:
Processing：The third product is cleaned with after drying, obtains recycling base material.Include any of the above one the present invention also provides one kind
Application of the recovery method in the recycling of PET base material, PE base materials, PVC base and PP base materials.Technology provided by the invention
Recycling, regeneration can be achieved to the waste mobile phone film of multiple types base material using easy, quick, low-cost mode in scheme
Good product purity.A kind of recovery method of safeguard film for cellular phone base material provided by the invention and its application, solve in the prior art,
The technological deficiency of reconstituted product purity difference after the recycling of waste mobile phone protective film.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of recovery method of safeguard film for cellular phone base material, which is characterized in that the recovery method is：
Step 1: pretreatment：Safeguard film for cellular phone to be recycled is preprocessed, obtains the first product；
Step 2: stock：After additive is mixed with water, pH adjusting agent is added and adjusts pH to 3~14, obtains the second product, it is described to add
Agent is added to be selected from：It is one or more in ethyl alcohol, ethylene glycol and glycerine；
Step 3: adhesive decomposes：First product is immersed in second product, stirs, obtains third product；
Step 4: post-processing：The third product is cleaned with after drying, obtains recycling base material.
2. recovery method according to claim 1, which is characterized in that in step 2, in terms of mass parts, the additive with
The rate of charge of water is 1:(50~400).
3. recovery method according to claim 1, which is characterized in that in step 2, the pH adjusting agent be strong acid and/or
Highly basic.
4. recovery method according to claim 3, which is characterized in that the strong acid is selected from：The concentrated sulfuric acid, concentrated hydrochloric acid and dense
Any one or more in nitric acid；
The highly basic is selected from：NaOH、KOH、Na2CO3In any one or more.
5. recovery method according to claim 1, which is characterized in that in step 1, the pretreated method is washing,
The number of the washing is 1~5 time.
6. recovery method according to claim 1, which is characterized in that in step 3, in terms of mass parts, first product
Rate of charge with second product is 1:(30~100).
7. recovery method according to claim 1, which is characterized in that in step 3, the temperature of the stirring is 25~100
DEG C, the time of the stirring is 30~100min, 200~1800r/min of rotating speed of the stirring.
8. recovery method according to claim 1, which is characterized in that in step 4, the method for the cleaning is rinsed for water,
The number of the cleaning is 1~5 time.
9. recovery method according to claim 1, which is characterized in that in step 4, the temperature of the drying is 30~60
DEG C, the time of the drying is 60~180min.
10. a kind of recovery method including described in claim 1 to 9 any one PET base material, PP base materials, PVC base and
Application in the recycling of PP base materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240244.5A CN108384051A (en) | 2018-03-22 | 2018-03-22 | A kind of recovery method of safeguard film for cellular phone base material and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810240244.5A CN108384051A (en) | 2018-03-22 | 2018-03-22 | A kind of recovery method of safeguard film for cellular phone base material and its application |
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| CN108384051A true CN108384051A (en) | 2018-08-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538629A (en) * | 2019-08-06 | 2019-12-06 | 广东工业大学 | Method for preparing adsorption material by using mobile phone protective film adhesive, prepared adsorption material and application |
| CN113478211A (en) * | 2021-08-16 | 2021-10-08 | 深圳明京环境科技有限公司 | Automatic disassembling equipment and disassembling method for rear cover adhesive type mobile phone |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863092A (en) * | 2010-06-11 | 2010-10-20 | 常州工程职业技术学院 | Method for removing non-setting adhesive on surface of polyester film |
| CN103694493A (en) * | 2013-12-18 | 2014-04-02 | 青岛福创环境科技有限公司 | Method for decomposing adhesive and method for recovering films from waste adhesive tapes |
-
2018
- 2018-03-22 CN CN201810240244.5A patent/CN108384051A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863092A (en) * | 2010-06-11 | 2010-10-20 | 常州工程职业技术学院 | Method for removing non-setting adhesive on surface of polyester film |
| CN103694493A (en) * | 2013-12-18 | 2014-04-02 | 青岛福创环境科技有限公司 | Method for decomposing adhesive and method for recovering films from waste adhesive tapes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538629A (en) * | 2019-08-06 | 2019-12-06 | 广东工业大学 | Method for preparing adsorption material by using mobile phone protective film adhesive, prepared adsorption material and application |
| CN113478211A (en) * | 2021-08-16 | 2021-10-08 | 深圳明京环境科技有限公司 | Automatic disassembling equipment and disassembling method for rear cover adhesive type mobile phone |
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