CN109280500A - Thermosetting plastics surface treatment method - Google Patents
Thermosetting plastics surface treatment method Download PDFInfo
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- CN109280500A CN109280500A CN201811153431.6A CN201811153431A CN109280500A CN 109280500 A CN109280500 A CN 109280500A CN 201811153431 A CN201811153431 A CN 201811153431A CN 109280500 A CN109280500 A CN 109280500A
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- Prior art keywords
- surface treatment
- treatment method
- thermosetting plastics
- concentrated sulfuric
- plastics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
-
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
-
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/14—Chemical modification with acids, their salts or anhydrides
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
- C08J2431/00—Characterised by the use of 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 an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
- C08J2431/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
- C08J2431/04—Homopolymers or copolymers of vinyl acetate
-
- 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
- C08J2433/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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
- C08J2461/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
- C08J2461/04—Condensation polymers of aldehydes or ketones with phenols only
- C08J2461/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
-
- 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
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention is intended to provide a kind of thermosetting plastics surface treatment method, comprising the following steps: A, carry out ungrease treatment to plastics using degreasing solvent；B, first it is roughened frosting with emery cloth, then plastics is placed on oxidizing flame and are calcined；C, it after impregnating 3-5min with sodium hydroxide solution, then is rinsed with cold water；D, 5-12min is impregnated in the mixed solution of chromic acid and the concentrated sulfuric acid；E, oxidation processes aoxidize 5-10min in the mixed solution of potassium bichromate and the concentrated sulfuric acid；F, 5-7min is washed in 70-75 DEG C of hot water, is dried under the conditions of 65-75 DEG C after being cleaned with distilled water；G, coating is uniformly coated on the surface of plastics；H, 10-20min is dried under the conditions of 65-75 DEG C；I, in frosting coated matte paint layer.This method overcomes prior art defect, and flexibility is good after having the characteristics that easy to operate, processing.
Description
Technical field
The present invention relates to plastics processing fields, and in particular to a kind of thermosetting plastics surface treatment method.
Background technique
Plastics can be divided into thermoplastic and thermosetting plastics two major classes.In general, thermosetting plastics wants specific heat
Thermoplastic plastic is easy to be glued.But their surface energy is below the hydrophilic materials such as glass, ceramics, metal, and their tables
Face can often adhere to release agent or evolution plasticizer, therefore be not easy to be infiltrated by adhesive, to influence glue-joint strength.Therefore, one
As be both needed to be surface-treated plastics.Since the kind of plastics is numerous, various performance differences are very big, therefore the side being surface-treated
Method is also just quite different.
Summary of the invention
The present invention is intended to provide a kind of thermosetting plastics surface treatment method, this method overcome prior art defect, have
The good feature of flexibility after easy to operate, processing.
Technical scheme is as follows:
A kind of thermosetting plastics surface treatment method, the treating method comprises following steps:
A, ungrease treatment is carried out to plastics using degreasing solvent；
B, oxidizing flame handle, be first roughened frosting with emery cloth, then plastics are placed on oxidizing flame and are calcined, be divided into three times into
Row calcining, calcines 3-5s every time；
C, it after impregnating 3-5min with sodium hydroxide solution, then is rinsed with cold water；
D, it is activated, impregnates 5-12min in the mixed solution of chromic acid and the concentrated sulfuric acid；
E, oxidation processes aoxidize 5-10min in the mixed solution of potassium bichromate and the concentrated sulfuric acid；
F, 5-7min is washed in 70-75 DEG C of hot water, is dried under the conditions of 65-75 DEG C after being cleaned with distilled water；
G, coating is uniformly coated on the surface of plastics, its component of coating presses following weight proportion: poly- propylhomoserin acrylic acid 5-
10 parts, 3-8 parts of Sodium Polyacrylate, 1.8-3.5 parts of phenolic resin, 0.8-2.3 parts of acrylate and vinyl acetate emulsion, hexylene glycol butyl ether sodium acetate 0.2-
0.6 part；
H, 10-20min is dried under the conditions of 65-75 DEG C；
I, in frosting coated matte paint layer, dumb light paint layer includes light portion and dumb light portion, 60 ° of angle glossiness in the light portion
For 80-90,60 ° of angle glossiness in the dumb light portion are 5-10.
Preferably, the degreasing solvent is acetone or butanone；
Preferably, the mass fraction of the sodium hydroxide solution is 30%, and dipping temperature is 60-75 DEG C.
Preferably, the mass ratio of chromic acid, the concentrated sulfuric acid and water is 1:2:4, dipping temperature in the mixed solution in the step D
It is 60-75 DEG C.
Preferably, the mass ratio of potassium bichromate, the concentrated sulfuric acid and water is 1:5:34, oxygen in the mixed solution in the step E
Changing temperature is 65-75 DEG C.
Preferably, the step F is specially to wash 5-7min in 70-75 DEG C of hot water, in 70- after being cleaned with distilled water
It is dried under the conditions of 80 DEG C.
Preferably, the coating composition further includes 5-7 parts diatomite part.
Preferably, the light portion is to carry out by using wool wheel and lacquer painting liquor finish wax to part dumb light paint layer
What polishing obtained.
Preferably, the dumb light paint layer is acroleic acid polyurethane dumb light paint.
The invention has the advantages that method for processing plastic surface simple process of the invention, treated plastic cement
It is easy to connect, and glue-joint strength is high；Also, by being coated with one layer of fine and close coating in surface of plastic matrix, it is basic to improve plastics
The toughness of itself extends it using the time, while the color of coating itself can be changed, with different-style of arranging in pairs or groups out, difference taste
Appearance, more cater to the needs in market；And the flexibility for changing coating itself, is allowed to more easily be bonded, is not easy to peel off, prolong
The service life of long plastics is allowed to be hardly damaged, and is more in line with public demand；Also, the dumb light coating also added, into one
Step promotes the service performance of plastic part.
Specific embodiment
The present invention is illustrated below with reference to embodiment.
Embodiment 1
A kind of thermosetting plastics surface treatment method provided in this embodiment, the treating method comprises following steps:
A, ungrease treatment is carried out to plastics using degreasing solvent；
B, oxidizing flame handle, be first roughened frosting with emery cloth, then plastics are placed on oxidizing flame and are calcined, be divided into three times into
Row calcining, calcines 3s every time；
C, it after impregnating 3min with sodium hydroxide solution, then is rinsed with cold water；
D, it is activated, impregnates 5min in the mixed solution of chromic acid and the concentrated sulfuric acid；
E, oxidation processes aoxidize 5min in the mixed solution of potassium bichromate and the concentrated sulfuric acid；
F, 5min is washed in 70 DEG C of hot water, is dried under the conditions of 65 DEG C after being cleaned with distilled water；
G, coating is uniformly coated on the surface of plastics, its component of coating presses following weight proportion: poly- propylhomoserin acrylic acid 5
Part, 3 parts of Sodium Polyacrylate, 1.8 parts of phenolic resin, 0.8 part of acrylate and vinyl acetate emulsion, 0.2 part of hexylene glycol butyl ether sodium acetate；
H, 10min is dried under the conditions of 65 DEG C；
I, in frosting coated matte paint layer, dumb light paint layer includes light portion and dumb light portion, 60 ° of angle glossiness in the light portion
It is 80,60 ° of angle glossiness in the dumb light portion are 5；
The degreasing solvent is acetone；
The mass fraction of the sodium hydroxide solution is 30%, and dipping temperature is 60 DEG C；
The mass ratio of chromic acid, the concentrated sulfuric acid and water is 1:2:4 in mixed solution in the step D, and dipping temperature is 60 DEG C；
The mass ratio of potassium bichromate, the concentrated sulfuric acid and water is 1:5:34, oxidizing temperature 65 in mixed solution in the step E
℃；
The step F is specially to wash 5-7min in 70 DEG C of hot water, is done under the conditions of 70 DEG C after being cleaned with distilled water
It is dry；The coating composition further includes 5 parts diatomite part；
The light portion is to be polished by using wool wheel and lacquer painting liquor finish wax to part dumb light paint layer；
The dumb light paint layer is acroleic acid polyurethane dumb light paint.
Embodiment 2
A kind of thermosetting plastics surface treatment method provided in this embodiment, the treating method comprises following steps:
A, ungrease treatment is carried out to plastics using degreasing solvent；
B, oxidizing flame handle, be first roughened frosting with emery cloth, then plastics are placed on oxidizing flame and are calcined, be divided into three times into
Row calcining, calcines 5s every time；
C, it after impregnating 5min with sodium hydroxide solution, then is rinsed with cold water；
D, it is activated, impregnates 12min in the mixed solution of chromic acid and the concentrated sulfuric acid；
E, oxidation processes aoxidize 10min in the mixed solution of potassium bichromate and the concentrated sulfuric acid；
F, 7min is washed in 75 DEG C of hot water, is dried under the conditions of 65-75 DEG C after being cleaned with distilled water；
G, coating is uniformly coated on the surface of plastics, its component of coating presses following weight proportion: poly- propylhomoserin acrylic acid 10
Part, 8 parts of Sodium Polyacrylate, 3.5 parts of phenolic resin, 2.3 parts of acrylate and vinyl acetate emulsion, 0.6 part of hexylene glycol butyl ether sodium acetate；
H, 20min is dried under the conditions of 75 DEG C；
I, in frosting coated matte paint layer, dumb light paint layer includes light portion and dumb light portion, 60 ° of angle glossiness in the light portion
It is 85,60 ° of angle glossiness in the dumb light portion are 6；
The degreasing solvent is acetone；
The mass fraction of the sodium hydroxide solution is 30%, and dipping temperature is 75 DEG C；
The mass ratio of chromic acid, the concentrated sulfuric acid and water is 1:2:4 in mixed solution in the step D, and dipping temperature is 75 DEG C；
The mass ratio of potassium bichromate, the concentrated sulfuric acid and water is 1:5:34, oxidizing temperature 75 in mixed solution in the step E
℃；
The step F is specially to wash 7min in 75 DEG C of hot water, is dried under the conditions of 80 DEG C after being cleaned with distilled water；
The coating composition further includes 7 parts diatomite part；
The light portion is to be polished by using wool wheel and lacquer painting liquor finish wax to part dumb light paint layer；
The dumb light paint layer is acroleic acid polyurethane dumb light paint.
Embodiment 3
A kind of thermosetting plastics surface treatment method provided in this embodiment, the treating method comprises following steps:
A, ungrease treatment is carried out to plastics using degreasing solvent；
B, oxidizing flame handle, be first roughened frosting with emery cloth, then plastics are placed on oxidizing flame and are calcined, be divided into three times into
Row calcining, calcines 4s every time；
C, it after impregnating 4min with sodium hydroxide solution, then is rinsed with cold water；
D, it is activated, impregnates 8min in the mixed solution of chromic acid and the concentrated sulfuric acid；
E, oxidation processes aoxidize 7min in the mixed solution of potassium bichromate and the concentrated sulfuric acid；
F, 6min is washed in 72 DEG C of hot water, is dried under the conditions of 70 DEG C after being cleaned with distilled water；
G, coating is uniformly coated on the surface of plastics, its component of coating presses following weight proportion: poly- propylhomoserin acrylic acid 8
Part, 6 parts of Sodium Polyacrylate, 2 parts of phenolic resin, 1.5 parts of acrylate and vinyl acetate emulsion, 0.4 part of hexylene glycol butyl ether sodium acetate；
H, 15min is dried under the conditions of 70 DEG C；
I, in frosting coated matte paint layer, dumb light paint layer includes light portion and dumb light portion, 60 ° of angle glossiness in the light portion
It is 90,60 ° of angle glossiness in the dumb light portion are 10；
The degreasing solvent is acetone；
The mass fraction of the sodium hydroxide solution is 30%, and dipping temperature is 65 DEG C；
The mass ratio of chromic acid, the concentrated sulfuric acid and water is 1:2:4 in mixed solution in the step D, and dipping temperature is 65 DEG C；
The mass ratio of potassium bichromate, the concentrated sulfuric acid and water is 1:5:34, oxidizing temperature 70 in mixed solution in the step E
℃；
The step F is specially to wash 6min in 72 DEG C of hot water, is dried under the conditions of 75 DEG C after being cleaned with distilled water；
The coating composition further includes 6 parts diatomite part；
The light portion is to be polished by using wool wheel and lacquer painting liquor finish wax to part dumb light paint layer；
The dumb light paint layer is acroleic acid polyurethane dumb light paint.
Claims (9)
1. a kind of thermosetting plastics surface treatment method, which is characterized in that the treating method comprises following steps:
A, ungrease treatment is carried out to plastics using degreasing solvent；
B, oxidizing flame handle, be first roughened frosting with emery cloth, then plastics are placed on oxidizing flame and are calcined, be divided into three times into
Row calcining, calcines 3-5s every time；
C, it after impregnating 3-5min with sodium hydroxide solution, then is rinsed with cold water；
D, it is activated, impregnates 5-12min in the mixed solution of chromic acid and the concentrated sulfuric acid；
E, oxidation processes aoxidize 5-10min in the mixed solution of potassium bichromate and the concentrated sulfuric acid；
F, 5-7min is washed in 70-75 DEG C of hot water, is dried under the conditions of 65-75 DEG C after being cleaned with distilled water；
G, coating is uniformly coated on the surface of plastics, its component of coating presses following weight proportion: poly- propylhomoserin acrylic acid 5-
10 parts, 3-8 parts of Sodium Polyacrylate, 1.8-3.5 parts of phenolic resin, 0.8-2.3 parts of acrylate and vinyl acetate emulsion, hexylene glycol butyl ether sodium acetate 0.2-
0.6 part；
H, 10-20min is dried under the conditions of 65-75 DEG C；
I, in frosting coated matte paint layer, dumb light paint layer includes light portion and dumb light portion, 60 ° of angle glossiness in the light portion
For 80-90,60 ° of angle glossiness in the dumb light portion are 5-10.
2. thermosetting plastics surface treatment method according to claim 1, it is characterised in that: the degreasing solvent is third
Ketone or butanone.
3. thermosetting plastics surface treatment method according to claim 1, it is characterised in that: the step C specifically:
The mass fraction of the sodium hydroxide solution is 30%, and dipping temperature is 60-75 DEG C.
4. thermosetting plastics surface treatment method according to claim 1, it is characterised in that: the mixing in the step D
The mass ratio of chromic acid, the concentrated sulfuric acid and water is 1:2:4 in solution, and dipping temperature is 60-75 DEG C.
5. thermosetting plastics surface treatment method according to claim 1, it is characterised in that: the mixing in the step E
The mass ratio of potassium bichromate, the concentrated sulfuric acid and water is 1:5:34 in solution, and oxidizing temperature is 65-75 DEG C.
6. thermosetting plastics surface treatment method according to claim 1, it is characterised in that: the step F specially exists
5-7min is washed in 70-75 DEG C of hot water, is dried under the conditions of 70-80 DEG C after being cleaned with distilled water.
7. thermosetting plastics surface treatment method according to claim 1, it is characterised in that: the coating composition is also wrapped
Include 5-7 parts diatomite part.
8. thermosetting plastics surface treatment method according to claim 1, it is characterised in that:
The light portion is to be polished by using wool wheel and lacquer painting liquor finish wax to part dumb light paint layer.
9. thermosetting plastics surface treatment method according to claim 1, it is characterised in that:
The dumb light paint layer is acroleic acid polyurethane dumb light paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811153431.6A CN109280500A (en) | 2018-09-30 | 2018-09-30 | Thermosetting plastics surface treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811153431.6A CN109280500A (en) | 2018-09-30 | 2018-09-30 | Thermosetting plastics surface treatment method |
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| Publication Number | Publication Date |
|---|---|
| CN109280500A true CN109280500A (en) | 2019-01-29 |
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| CN201811153431.6A Pending CN109280500A (en) | 2018-09-30 | 2018-09-30 | Thermosetting plastics surface treatment method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374139A (en) * | 2012-04-28 | 2013-10-30 | 深圳富泰宏精密工业有限公司 | Plastic surface treatment method |
| CN103483614A (en) * | 2013-09-26 | 2014-01-01 | 张家港市锦丰润尔发五金塑料厂 | Plastic surface treatment method |
| CN105713221A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | Plastic surface treatment before glue joint |
| CN107325310A (en) * | 2017-06-20 | 2017-11-07 | 舒城安泰塑料制品有限公司 | A kind of handling process of frosting |
-
2018
- 2018-09-30 CN CN201811153431.6A patent/CN109280500A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374139A (en) * | 2012-04-28 | 2013-10-30 | 深圳富泰宏精密工业有限公司 | Plastic surface treatment method |
| CN103483614A (en) * | 2013-09-26 | 2014-01-01 | 张家港市锦丰润尔发五金塑料厂 | Plastic surface treatment method |
| CN105713221A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | Plastic surface treatment before glue joint |
| CN107325310A (en) * | 2017-06-20 | 2017-11-07 | 舒城安泰塑料制品有限公司 | A kind of handling process of frosting |
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