CN109535971A - A kind of wear-resistant self-lubricating coating and preparation method thereof - Google Patents
A kind of wear-resistant self-lubricating coating and preparation method thereof Download PDFInfo
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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
- 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
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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
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a kind of wear-resistant self-lubricating coating and preparation method thereof, the coating by weight for 6: 1 first, second group by being grouped as, the percentage of weight formula of first component are as follows: weather-proof type polyurethane resin A 40~55%；Weather-proof type polyurethane resin B 15~25%；Wear-resisting powder body material 5~15%；Self-lubricating powder body material 8~15%；Wetting dispersing agent 0.5~1%；Levelling agent 0.5~1%；Organic solvent 5~15%；Second group is divided into aliphatic firming agent.Coating of the invention is a kind of normal temperature cured type wear-resistant self-lubricating coating, and construction is simple, easy to maintain, the fretting wear phenomenon that can be effectively prevent between structural member can satisfy the deformation requirement of rudder face structural member, with good protection effect.
Description
Technical field
The invention belongs to technical field of coatings, specifically, being related to a kind of wear-resistant self-lubricating coating and preparation method thereof.
Background technique
Aircraft rudder surface structural metallic materials is usually aluminium alloy, and the hardness of aluminium alloy can be improved in the hardening oxidation processing on surface
And wearability, but coefficient of friction is high, antithesis poor compatibility, especially in complex conditions such as ocean high humidity weathers with high salt in use,
It is easier to fretting wear phenomenon occur.Aircraft is in flight course, and the load of rudder face metal structure is larger, and friction type is relatively multiple
It is miscellaneous, existing pivoting friction, and have the reciprocal fine motion friction of airfoil vibration bring, these can all aggravate the abrasion of aluminum alloy surface,
Cause the strength of materials to reduce even to be broken, seriously threatens flight safety.
At present there is complex process (sintering process, chemical plating and plating etc.), outfield in domestic wear-resistant self-lubricating coating mostly
The problems such as maintenance difficulty big (heat drying solidification), loss of properties on aging (epoxy, polyphenylene sulfide etc. are film forming matter), and coating is hard
It spends larger, is difficult to meet deformation requirement of the rudder face structure in flight course.
Therefore it needs to develop a kind of new elastic wear-resisting self-lubricating coating, carrys out while meeting the wear-resisting shape of rudder face metal structure
Become the requirement with flight-line service, improves flight stability and safety.
Summary of the invention
The purpose of the present invention is to provide a kind of with certain elasticity, excellent wear-resisting and self-lubricating property, can meet often
The wear-resisting wear-resistant self-lubricating coating and preparation method thereof for undermining deformation requirement of rule and special surface structural member.
In order to solve the above technical problems, the present invention is achieved by the following scheme:
A kind of wear-resistant self-lubricating coating:
By first, the second component formed by weight the ratio for 6: 1, the percentage of weight formula of first component: weather-proof poly-
Urethane Resin A 40~55%；Weather-proof type polyurethane resin B 15~25%；Wear-resisting powder body material 5~15%；Self-lubricating powder
Material 8~15%；Wetting dispersing agent 0.5~1%；Levelling agent 0.5~1%；Organic solvent 5~15%；Second group is divided into aliphatic
Curing agent.
In above-mentioned technical proposal of the invention, also have following technical characteristic: the optimization formula of the first component is as follows:
Weather-proof type polyurethane resin A 50%；Weather-proof type polyurethane resin B 20%；Wear-resisting powder body material 10%；Self-lubricating powder body material
10%；Wetting dispersing agent 0.5%；Levelling agent 0.5%；Organic solvent 9%；
In above-mentioned technical proposal of the invention, also there is following technical characteristic: the weather-proof poly- ammonia in the first component
Ester Resin A is modified aliphatic polyurethane resin (WN-ZF-1 of Inst. of Marine Chemical Engineering production)；
In above-mentioned technical proposal of the invention, also there is following technical characteristic: the weather-proof poly- ammonia in the first component
Ester resin B is fluorine-carbon modified polyurethane resin (WN-ZF-2 of Inst. of Marine Chemical Engineering production)；
In above-mentioned technical proposal of the invention, also there is following technical characteristic: the wear-resisting powder material in the first component
Material is aluminium oxide, silicon nitride, one or more of boron nitride；
In above-mentioned technical proposal of the invention, also there is following technical characteristic: the self-lubricating powder in the first component
Material is one or more of graphite, molybdenum disulfide, tungsten disulfide, ptfe micropowder；
In above-mentioned technical proposal of the invention, also there is following technical characteristic: the wetting dispersing agent in the first component
For the high molecular weight block copolymerization liquid solution with pigment affinity groups, the wetting dispersing agent is BYK163, BYK161, BYK167
One or more of；
Levelling agent in the first component is organic silicon polyether copolymer, and the levelling agent is Dow Corning 14, Dow
One or more of Corning 54, Dow Corning 29；
In above-mentioned technical proposal of the invention, also with following technical characteristic: the organic solvent in the first component is
Aromatic solvents, esters solvent or solvent of ether ester type, the aromatic solvents be dimethylbenzene, including aromatic hydrocarbons (S100,
S150), the esters solvent is butyl acetate, ethyl acetate, and the solvent of ether ester type is ethylene glycol ether acetate, ethylene glycol
Monobutyl ether acetate.
In above-mentioned technical proposal of the invention, also have following technical characteristic: the second group is divided into aliphatic isocyanic acid
The tripolymer of ester.Such as the N3375 of Bayer company.
The preparation method of wear-resistant self-lubricating coating (finishing coat) of the invention, comprising the following steps:
Raw material is extracted according to the following recipe:
Weather-proof type polyurethane resin A 40~55%；Weather-proof polyurethane resin B 15~25%；Wear-resisting powder body material 5~
15%；Self-lubricating powder body material 8~15%；Wetting dispersing agent 0.5~1%；Levelling agent 0.5~1%；Organic solvent 5~15%；
Second group is divided into aliphatic firming agent, and first, second component is 6: 1 ratio preparation by weight；
The drying wear-resisting and self-lubricating powder body material, it is spare；By the weather-proof type polyurethane resin A, weather-proof poly-
It is added in basket type sand grid and grinds after urethane resin B, wear-resisting powder body material, wetting dispersing agent, organic solvent mixing, fineness of grind
5~30 μm of dischargings.After discharging, self-lubricating powder body material, levelling agent is added, is dispersed with stirring 30 points under the conditions of 2000 revs/min
Clock is filtered with 120 mesh filter screens, and test viscosity of the coating (applies -4 glasss), metering packing.After each material mixing of first component is uniform, by 6
: 1 ratio takes first, the second component of metering, is uniformly mixed, and stands 15min.
Further, described to apply the method used as spraying or brush.
Further, the coating layer thickness of dry film is controlled at 70~80 μm after applying one time.
Compared with prior art, the advantages and positive effects of the present invention are: coating of the invention is a kind of normal temperature cured type
Wear-resistant self-lubricating coating, construction is simple, easy to maintain, the fretting wear phenomenon that can be effectively prevent between structural member can satisfy rudder
The deformation requirement of face structural member, has good protection effect.Coating of the present invention is with two kinds of weather-proof flexible polyurethane resins
Film forming matter is constructed using aerial spraying method, and air drying solidification, can solve existing coating technology cannot be considered in terms of wear-resistant self-lubricating
The problems such as characteristic, big flexibility difference and flight-line service difficulty.
Coating of the invention is sprayed on aluminum alloy base material, and the performance characteristics of coating are as follows:
1) drying property GB/T 1728, air drying, surface drying are not more than 8h, do solid work no more than 48h.
2) flexibility GB/T 6742,1mm.
3) impact strength GB/T 1732 is not less than 50cm.
4) adhesive force GB/T 9286 is not less than 1 grade.
5) wearability GB/T 1768,1000g/1000 turn, and are not higher than 10mg.
6) coefficient of friction GB/T 10006 is not higher than 0.3.
7) artificial accelerated aging 1000h GB/T 1865, coating is without cracking or obscission.
Specific embodiment
The present invention is described in further detail for son combined with specific embodiments below:
Embodiment 1
First component: weather-proof type polyurethane resin A 50%；Weather-proof type polyurethane resin B 20%；Aluminium oxide 10%；Two sulphur
Change molybdenum 10%；BYK163 0.5%；Dow Corning 14 0.5%；Butyl acetate 9%.
Embodiment 2
First component: weather-proof type polyurethane resin A 40%；Weather-proof type polyurethane resin B 25%；Silicon nitride 13%；Two sulphur
Change tungsten 8%；BYK161 0.6%；Dow Corning 29 0.8%；Butyl acetate 12.6%.
Embodiment 3
First component: weather-proof type polyurethane resin A 55%；Weather-proof type polyurethane resin B 15%；Aluminium oxide 4%；Boron nitride
4%；Ptfe micropowder 3%；Graphite 8%；BYK167 0.5%；Dow Corning 54 0.5%；Butyl acetate 10%.
Embodiment 4 (comparative example)
First component: weather-proof type polyurethane resin A 70%；Aluminium oxide 4%；Boron nitride 4%；Ptfe micropowder 3%；
Graphite 8%；BYK167 0.5%；Dow Corning 54 0.5%；Butyl acetate 10%.
Embodiment 5 (comparative example)
First component: weather-proof type polyurethane resin A 55%；Weather-proof type polyurethane resin B 10%；Aluminium oxide 4%；Boron nitride
4%；Ptfe micropowder 3%；Graphite 8%；BYK167 0.5%；Dow Corning 54 0.5%；Butyl acetate 15%.
Embodiment 6 (comparative example)
First component: weather-proof type polyurethane resin A 55%；Weather-proof type polyurethane resin B 15%；Aluminium oxide 5%；Boron nitride
10%；Ptfe micropowder 5%；BYK167 0.5%；Dow Corning 54 0.5%；Butyl acetate 9%.
Weather-proof type polyurethane resin A used is the WN-ZF-1 of Inst. of Marine Chemical Engineering production in embodiment 1-6, weather-proof
Aliphatic elastic polyurethane class (basic performance is shown in Table 1)；Weather-proof type polyurethane resin B is the WN- of Inst. of Marine Chemical Engineering production
ZF-2, weather-proof fluorine carbon polyurethanes (basic performance is shown in Table 1).Second group is divided into the N3375 of Bayer AG.First component and second component
Weight ratio be 6: 1.
1 resin basic performance of table
Embodiment 1-6 prepares first component as steps described below: by solid powder (the wear-resisting and self-lubricating in first component formula
Powder body material) drying, it is spare.By embodiment first component formula weigh weather-proof type polyurethane resin A, weather-proof type polyurethane resin B,
Wear-resisting powder body material, wetting dispersing agent and organic solvent are added in basket type sand grid after mixing and grind, and 5~30 μm of fineness of grind
Discharging.Said mixture is added in agitator tank, stirring is started, metering self-lubricating powder body material, levelling agent are added, using height
Fast blender stirs 30min under 2000rmp revolving speed, is filtered with 120 mesh filter screens, metering packing, tests viscosity of the coating 110s
(applying -4 glasss).After each material mixing of first component is uniform, in 6: 1 ratio, first, the second component of metering is taken, is uniformly mixed, is stood
After 15min, using spraying process, finishing coat of constructing on the tinplate polished.
Embodiment 1-6 wear-resistant self-lubricating coating application one time, its performance see the table below 2 after dry solidification.
2 wear resistant self-lubricating coating performance of table
Coating properties show, the coating that embodiment 1-3 cited by the present invention is obtained passes through air drying, flexible
Property, impact resistance, adhesive force, wearability, coefficient of friction, artificial accelerated aging test, embodiment 4-6 resin composition, it is wear-resisting
With self-lubricating powder body material dosage not in the framework of the present definition, causes wearability and coefficient of friction to generate fluctuation, be discontented with
Sufficient application requirement.The present invention has passed through the experiment examination of airplane design unit at present, and wear-resistant self-lubricating performance is excellent, meets aircraft
Deformation requirement under state of flight, simple process, it is convenient to repair, and has a good application prospect.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (10)
1. a kind of wear-resistant self-lubricating coating, it is characterised in that: the coating by weight for 6: 1 first, second group by being grouped as, first
The percentage of weight formula of component are as follows: weather-proof type polyurethane resin A 40~55%；Weather-proof type polyurethane resin B 15~25%；
Wear-resisting powder body material 5~15%；Self-lubricating powder body material 8~15%；Wetting dispersing agent 0.5~1%；Levelling agent 0.5~1%；
Organic solvent 5~15%；Second group is divided into aliphatic firming agent.
2. a kind of wear-resistant self-lubricating coating as described in claim 1, which is characterized in that the weight percent of the first component is matched
Side are as follows: weather-proof type polyurethane resin A50%；Weather-proof type polyurethane resin B 20%；Wear-resisting powder body material 10%；Self-lubricating powder
Material 10%；Wetting dispersing agent 0.5%；Levelling agent 0.5%；Organic solvent 9%.
3. a kind of wear-resistant self-lubricating coating as claimed in claim 1 or 2, which is characterized in that the weather-proof type polyurethane resin A
For modified aliphatic polyurethane resin.
4. a kind of wear-resistant self-lubricating coating as claimed in claim 1 or 2, which is characterized in that the weather-proof type polyurethane resin B
For fluorine-carbon modified polyurethane resin.
5. a kind of wear-resistant self-lubricating coating as claimed in claim 1 or 2, which is characterized in that the wear-resisting powder body material is oxygen
Change one or more of aluminium, silicon nitride, boron nitride；The self-lubricating powder body material be graphite, molybdenum disulfide, tungsten disulfide,
One or more of ptfe micropowder；The wetting dispersing agent is the high molecular weight block copolymerization with pigment affinity groups
Liquid solution；The levelling agent is organic silicon polyether copolymer；The organic solvent is aromatic solvents, esters solvent or ether-ether class
Solvent.
6. a kind of wear-resistant self-lubricating coating as claimed in claim 5, which is characterized in that the aromatic solvents be dimethylbenzene,
Including aromatic hydrocarbons；The esters solvent is butyl acetate, ethyl acetate；The solvent of ether ester type is ethylene glycol ethyl ether vinegar
Acid esters, 2-Butoxyethyl acetate.
7. a kind of wear-resistant self-lubricating coating as claimed in claim 1 or 2, which is characterized in that it is different that the second group is divided into aliphatic
The tripolymer of cyanate.
8. a kind of preparation method of wear-resistant self-lubricating coating as described in claim 1, it is characterised in that: the preparation method packet
It includes:
Formula described in accordance with the claim 1 extracts raw material: first component is by weight percentage are as follows: weather-proof type polyurethane resin A 40
~55%；Weather-proof type polyurethane resin B 15~25%；Wear-resisting powder body material 5~15%；Self-lubricating powder body material 8~15%；
Wetting dispersing agent 0.5~1%；Levelling agent 0.5~1%；Organic solvent 5~15%；Second group is divided into aliphatic firming agent, first, second
Component is 6: 1 ratio preparation by weight；
The wear-resisting powder body material and the self-lubricating powder body material are dried, it is spare；By the weather-proof type polyurethane resin A, institute
It is added to after stating weather-proof type polyurethane resin B, the wear-resisting powder body material, the wetting dispersing agent, organic solvent mixing
It is ground in basket type sand grid, 5~30 μm of fineness of grind dischargings；After discharging, the self-lubricating powder body material, the levelling agent is added,
It is dispersed with stirring under the conditions of 2000 revs/min 30 minutes, is filtered with 120 mesh filter screens, test metering packing after viscosity of the coating；To first
After each material mixing of component is uniform, in 6: 1 ratio, first, the second component of metering is taken, is uniformly mixed, 15min is stood.
9. the preparation method of wear-resistant self-lubricating coating as claimed in claim 8, which is characterized in that the weight hundred of the first component
Divide than formula are as follows: weather-proof type polyurethane resin A 50%；Weather-proof type polyurethane resin B 20%；Wear-resisting powder body material 10%；From
Lubricate powder body material 10%；Wetting dispersing agent 0.5%；Levelling agent 0.5%；Organic solvent 9%.
10. the preparation method of wear-resistant self-lubricating coating as claimed in claim 8 or 9, which is characterized in that the weather-proof poly- ammonia
Ester Resin A is modified aliphatic polyurethane resin；The weather-proof type polyurethane resin B is fluorine-carbon modified polyurethane resin；It is described
Wear-resisting powder body material is one or more of aluminium oxide, silicon nitride, boron nitride；The self-lubricating powder body material is graphite, two
One or more of molybdenum sulfide, tungsten disulfide, ptfe micropowder；The wetting dispersing agent is with pigment affinity groups
High molecular weight block copolymerization liquid solution；The levelling agent is organic silicon polyether copolymer；The organic solvent be aromatic solvents,
Esters solvent or solvent of ether ester type；The aromatic solvents are dimethylbenzene, including aromatic hydrocarbons；The esters solvent is vinegar
Acid butyl ester, ethyl acetate；The solvent of ether ester type is ethylene glycol ether acetate, 2-Butoxyethyl acetate；The second component
For the tripolymer of aliphatic isocyanates.
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Cited By (5)
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| CN110527395A (en) * | 2019-09-17 | 2019-12-03 | 西安康普威能源技术有限公司 | A kind of wear-resistant paint and the preparation method and application thereof |
| CN110982412A (en) * | 2019-11-27 | 2020-04-10 | 云南昆船机械制造有限公司 | High-hardness coating material for aluminum alloy protection, preparation method and application |
| CN111215309A (en) * | 2019-10-30 | 2020-06-02 | 宁波劳伦斯汽车内饰件有限公司 | Processing method of single-side roll-coated metal plate |
| CN114989710A (en) * | 2022-06-25 | 2022-09-02 | 共享智能装备有限公司 | Coating capable of prolonging service life of equipment, preparation method and use method |
| CN116694216A (en) * | 2023-06-29 | 2023-09-05 | 海洋化工研究院有限公司 | Room-temperature-cured two-component high-strength high-elasticity high-wear-resistance polyurethane resin and preparation method thereof |
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| CN110982412A (en) * | 2019-11-27 | 2020-04-10 | 云南昆船机械制造有限公司 | High-hardness coating material for aluminum alloy protection, preparation method and application |
| CN114989710A (en) * | 2022-06-25 | 2022-09-02 | 共享智能装备有限公司 | Coating capable of prolonging service life of equipment, preparation method and use method |
| CN116694216A (en) * | 2023-06-29 | 2023-09-05 | 海洋化工研究院有限公司 | Room-temperature-cured two-component high-strength high-elasticity high-wear-resistance polyurethane resin and preparation method thereof |
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