CN110041559A - A kind of resin efficient recycling method - Google Patents
A kind of resin efficient recycling method Download PDFInfo
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- CN110041559A CN110041559A CN201810046121.8A CN201810046121A CN110041559A CN 110041559 A CN110041559 A CN 110041559A CN 201810046121 A CN201810046121 A CN 201810046121A CN 110041559 A CN110041559 A CN 110041559A
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- parts
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- ketone
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- mixed solvent
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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
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
- C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/30—Polymeric waste or recycled polymer
-
- 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)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a kind of resin efficient recycling methods, include the following steps: after 1) crushing the paint slag being recovered to by pulverizer, it is added in high-pressure micronizer powder machine and carries out milling processing, then, filtering out diameter by screening machine is 2 μm of fine powders below, and the big particle of diameter imports high-pressure micronizer powder machine again and repeats to be milled；2) mixed solvent is made after mixing dehydrated alcohol, dimethylbenzene, ethyl orthosilicate and ketone sufficiently；3) fine powder is added in mixed solvent, stirring and dissolving is then allowed to stand, and solid phase and liquid phase is obtained by filtration, and liquid phase obtains thermoplastic resin by adsorbing, after vacuum distillation processing；4) after the solid phase for obtaining step 3) drains, processing particle is obtained；5) processing particle is added in epoxy resin, dicy-curing agent is added, is mixedly configured into coating raw material.The present invention is good to the recovering effect of various types of resins, high-efficient, not only solves environmental pressure caused by waste paint slag accumulation, also with good economic efficiency.
Description
Technical field
The present invention relates to waste and old coating recycling field, specifically a kind of resin efficient recycling method.
Background technique
Pressure-air spraying, high pressure airless spray, electrostatic spraying etc. is generallyd use in the coating process of hardware products to apply
Work method.Under normal circumstances, least a portion of coating is sprayed on workpiece in spraying operation, remaining largely all splashes
It has arrived in paint spray booth or lost in other ways.Currently, most domestic security door, motorcycle, automobile fitting, hardware tool etc.
Producer is all made of the installation cascade curtain in paint spray booth and is handled come the method for collecting useless coating cloud, usually can all generate a large amount of useless
Paint slag.
Currently, being mainly landfill method to the processing method of waste paint slag, long-term lasting landfill certainly will aggravate environmental pressure, make
At the pollution of environment；Simultaneously, abandoning for a large amount of waste paint slags is also a kind of very big waste.How useless paint is rationally recycled
Resin in slag has highly important environmental protection and economy meaning.
Summary of the invention
The purpose of the present invention is to provide a kind of resin efficient recycling methods, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of resin efficient recycling method, includes the following steps:
1) it after crushing the paint slag being recovered to by pulverizer, is added in high-pressure micronizer powder machine and carries out milling processing, then,
Filtering out diameter by screening machine is 2 μm of fine powders below, and particle of the diameter greater than 2 μm imports high-pressure micronizer powder machine weight again
Regrinding powder；
2) component of following mass ratio: 5 parts of dehydrated alcohol, 10~12 parts of dimethylbenzene, 7~9 parts of ethyl orthosilicate, ketone is weighed respectively
3~5 parts, mixed solvent is made after dehydrated alcohol, dimethylbenzene, ethyl orthosilicate and ketone are mixed sufficiently；
3) fine powder obtained in step 1) is added in the mixed solvent in step 2, the mass ratio of fine powder and mixed solvent is
1:5~6, stirring and dissolving are then allowed to stand, and solid phase and liquid phase is obtained by filtration, and liquid phase obtains heat by adsorbing, after vacuum distillation processing
Plastic resin；
4) after the solid phase for obtaining step 3) drains, exposure is placed in 50~60 DEG C that drying and processing for 24 hours, obtains everywhere in drying room
Manage particle；
5) processing particle is added in epoxy resin, the mass ratio for handling particle and epoxy resin is 3:86~90, and stirring is equal
After even, dicy-curing agent is added, is mixedly configured into coating raw material.
As a further solution of the present invention: dicy-curing agent and epoxy resin mass ratio are 5:7 in the step 5)
~9.
As a further solution of the present invention: the stirring and dissolving process in the step 3) carries out at 50~60 DEG C,
Mixing time is 40~60min.
As a further solution of the present invention: ketone uses acetone, butanone or 2 pentanone in the step 2.
As a further solution of the present invention: mixed solvent is grouped as by the group of following mass ratio in the step 2: nothing
5 parts of water-ethanol, 10 parts of dimethylbenzene, 7 parts of ethyl orthosilicate, 3 parts of ketone.
As a further solution of the present invention: mixed solvent is grouped as by the group of following mass ratio in the step 2: nothing
5 parts of water-ethanol, 12 parts of dimethylbenzene, 9 parts of ethyl orthosilicate, 5 parts of ketone.
As a further solution of the present invention: mixed solvent is grouped as by the group of following mass ratio in the step 2: nothing
5 parts of water-ethanol, 11 parts of dimethylbenzene, 8 parts of ethyl orthosilicate, 4 parts of ketone.
Compared with prior art, the beneficial effects of the present invention are: using dehydrated alcohol, dimethylbenzene, ethyl orthosilicate and
The recycling that mixed solvent realizes thermoplastic resin is made after ketone mixing sufficiently；Not only solve the accumulation of the wastes such as waste paint slag
Caused by environmental pressure, it is also with good economic efficiency；And remaining solid phase enters in new epoxy resin, cooperation mixing
Upper dicy-curing agent may be used as epoxy-based lacquers coating material production raw material, and recovering effect is good, high-efficient.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1:
A kind of resin efficient recycling method, includes the following steps:
1) it after crushing the paint slag being recovered to by pulverizer, is added in high-pressure micronizer powder machine and carries out milling processing, then,
Filtering out diameter by screening machine is 2 μm of fine powders below, and particle of the diameter greater than 2 μm imports high-pressure micronizer powder machine weight again
Regrinding powder；
2) component of following mass ratio: 5 parts of dehydrated alcohol, 10 parts of dimethylbenzene, 7 parts of ethyl orthosilicate, 3 parts of ketone is weighed respectively, it will
Mixed solvent is made after dehydrated alcohol, dimethylbenzene, ethyl orthosilicate and ketone mixing sufficiently；Wherein, ketone is adopted in the step 2
With acetone, butanone or 2 pentanone.
3) fine powder obtained in step 1) is added in the mixed solvent in step 2, the quality of fine powder and mixed solvent
Than for 1:5, stirring and dissolving is then allowed to stand, solid phase and liquid phase is obtained by filtration, liquid phase is obtained by adsorbing, after vacuum distillation processing
Thermoplastic resin；It can be used for the configuration of general paint.Wherein, stirring and dissolving process carries out at 50~60 DEG C, stirring
Time is 40~60min；
4) after the solid phase for obtaining step 3) drains, exposure is placed in 50~60 DEG C that drying and processing for 24 hours, obtains everywhere in drying room
Manage particle；
5) processing particle being added in epoxy resin, the mass ratio for handling particle and epoxy resin is 3:86, after mixing evenly,
Dicy-curing agent is added, is mixedly configured into coating raw material, can be used for producing epoxy-based lacquers coating.Wherein, double in the step 5)
Cyanamide curing agent and epoxy resin mass ratio are 5:7.
Embodiment 2:
A kind of resin efficient recycling method, includes the following steps:
1) it after crushing the paint slag being recovered to by pulverizer, is added in high-pressure micronizer powder machine and carries out milling processing, then,
Filtering out diameter by screening machine is 2 μm of fine powders below, and particle of the diameter greater than 2 μm imports high-pressure micronizer powder machine weight again
Regrinding powder；
2) component of following mass ratio: 5 parts of dehydrated alcohol, 10 parts of dimethylbenzene, 7 parts of ethyl orthosilicate, 3 parts of ketone is weighed respectively, it will
Mixed solvent is made after dehydrated alcohol, dimethylbenzene, ethyl orthosilicate and ketone mixing sufficiently；Wherein, ketone is adopted in the step 2
With acetone, butanone or 2 pentanone.
3) fine powder obtained in step 1) is added in the mixed solvent in step 2, the quality of fine powder and mixed solvent
Than for 1:6, stirring and dissolving is then allowed to stand, solid phase and liquid phase is obtained by filtration, liquid phase is obtained by adsorbing, after vacuum distillation processing
Thermoplastic resin；It can be used for the configuration of general paint.Wherein, stirring and dissolving process carries out at 50~60 DEG C, stirring
Time is 40~60min；
4) after the solid phase for obtaining step 3) drains, exposure is placed in 50~60 DEG C that drying and processing for 24 hours, obtains everywhere in drying room
Manage particle；
5) processing particle being added in epoxy resin, the mass ratio for handling particle and epoxy resin is 3:87, after mixing evenly,
Dicy-curing agent is added, is mixedly configured into coating raw material, can be used for producing epoxy-based lacquers coating.Wherein, double in the step 5)
Cyanamide curing agent and epoxy resin mass ratio are 5:8.
Embodiment 3:
A kind of resin efficient recycling method, includes the following steps:
1) it after crushing the paint slag being recovered to by pulverizer, is added in high-pressure micronizer powder machine and carries out milling processing, then,
Filtering out diameter by screening machine is 2 μm of fine powders below, and particle of the diameter greater than 2 μm imports high-pressure micronizer powder machine weight again
Regrinding powder；
2) component of following mass ratio: 5 parts of dehydrated alcohol, 10 parts of dimethylbenzene, 7 parts of ethyl orthosilicate, 3 parts of ketone is weighed respectively, it will
Mixed solvent is made after dehydrated alcohol, dimethylbenzene, ethyl orthosilicate and ketone mixing sufficiently；Wherein, ketone is adopted in the step 2
With acetone, butanone or 2 pentanone.
3) fine powder obtained in step 1) is added in the mixed solvent in step 2, the quality of fine powder and mixed solvent
Than for 1:6, stirring and dissolving is then allowed to stand, solid phase and liquid phase is obtained by filtration, liquid phase is obtained by adsorbing, after vacuum distillation processing
Thermoplastic resin；It can be used for the configuration of general paint.Wherein, stirring and dissolving process carries out at 50~60 DEG C, stirring
Time is 40~60min；
4) after the solid phase for obtaining step 3) drains, exposure is placed in 50~60 DEG C that drying and processing for 24 hours, obtains everywhere in drying room
Manage particle；
5) processing particle being added in epoxy resin, the mass ratio for handling particle and epoxy resin is 1:30, after mixing evenly,
Dicy-curing agent is added, is mixedly configured into coating raw material, can be used for producing epoxy-based lacquers coating.Wherein, double in the step 5)
Cyanamide curing agent and epoxy resin mass ratio are 5:9.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
Claims (7)
1. a kind of resin efficient recycling method, which comprises the steps of:
1) it after crushing the paint slag being recovered to by pulverizer, is added in high-pressure micronizer powder machine and carries out milling processing, then,
Filtering out diameter by screening machine is 2 μm of fine powders below, and particle of the diameter greater than 2 μm imports high-pressure micronizer powder machine weight again
Regrinding powder；
2) component of following mass ratio: 5 parts of dehydrated alcohol, 10~12 parts of dimethylbenzene, 7~9 parts of ethyl orthosilicate, ketone is weighed respectively
3~5 parts, mixed solvent is made after dehydrated alcohol, dimethylbenzene, ethyl orthosilicate and ketone are mixed sufficiently；
3) fine powder obtained in step 1) is added in the mixed solvent in step 2, the mass ratio of fine powder and mixed solvent is
1:5~6, stirring and dissolving are then allowed to stand, and solid phase and liquid phase is obtained by filtration, and liquid phase obtains heat by adsorbing, after vacuum distillation processing
Plastic resin；
4) after the solid phase for obtaining step 3) drains, exposure is placed in 50~60 DEG C that drying and processing for 24 hours, obtains everywhere in drying room
Manage particle；
5) processing particle is added in epoxy resin, the mass ratio for handling particle and epoxy resin is 3:86~90, and stirring is equal
After even, dicy-curing agent is added, is mixedly configured into coating raw material.
2. a kind of resin efficient recycling method according to claim 1, which is characterized in that dicyandiamide is solid in the step 5)
Agent and epoxy resin mass ratio are 5:7~9.
3. a kind of resin efficient recycling method according to claim 1, which is characterized in that the stirring in the step 3) is molten
Solution preocess carries out at 50~60 DEG C, and mixing time is 40~60min.
4. a kind of resin efficient recycling method according to claim 1, which is characterized in that ketone uses third in the step 2
Ketone, butanone or 2 pentanone.
5. a kind of resin efficient recycling method according to claim 1, which is characterized in that mixed solvent in the step 2
It is grouped as by the group of following mass ratio: 5 parts of dehydrated alcohol, 10 parts of dimethylbenzene, 7 parts of ethyl orthosilicate, 3 parts of ketone.
6. a kind of resin efficient recycling method according to claim 1, which is characterized in that mixed solvent in the step 2
It is grouped as by the group of following mass ratio: 5 parts of dehydrated alcohol, 12 parts of dimethylbenzene, 9 parts of ethyl orthosilicate, 5 parts of ketone.
7. a kind of resin efficient recycling method according to claim 1, which is characterized in that mixed solvent in the step 2
It is grouped as by the group of following mass ratio: 5 parts of dehydrated alcohol, 11 parts of dimethylbenzene, 8 parts of ethyl orthosilicate, 4 parts of ketone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046121.8A CN110041559A (en) | 2018-01-17 | 2018-01-17 | A kind of resin efficient recycling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046121.8A CN110041559A (en) | 2018-01-17 | 2018-01-17 | A kind of resin efficient recycling method |
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| CN110041559A true CN110041559A (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810046121.8A Pending CN110041559A (en) | 2018-01-17 | 2018-01-17 | A kind of resin efficient recycling method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248301A (en) * | 2020-08-26 | 2021-01-22 | 金盘电气集团（上海）有限公司 | Recycling process of insulating resin paint block waste |
| CN113500084A (en) * | 2021-07-22 | 2021-10-15 | 天津市瑞德赛恩水业有限公司 | Paint slag reduction process |
| WO2022029318A1 (en) * | 2020-08-07 | 2022-02-10 | Apk Ag | Method for plastic pre-treatment and solvent-based plastic recycling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022029318A1 (en) * | 2020-08-07 | 2022-02-10 | Apk Ag | Method for plastic pre-treatment and solvent-based plastic recycling |
| CN112248301A (en) * | 2020-08-26 | 2021-01-22 | 金盘电气集团（上海）有限公司 | Recycling process of insulating resin paint block waste |
| CN113500084A (en) * | 2021-07-22 | 2021-10-15 | 天津市瑞德赛恩水业有限公司 | Paint slag reduction process |
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Application publication date: 20190723 |