CN106800873A - Metal base scratch-resistant, high temperature resistant do not glue smooth priming coat - Google Patents
Metal base scratch-resistant, high temperature resistant do not glue smooth priming coat Download PDFInfo
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- CN106800873A CN106800873A CN201710056046.9A CN201710056046A CN106800873A CN 106800873 A CN106800873 A CN 106800873A CN 201710056046 A CN201710056046 A CN 201710056046A CN 106800873 A CN106800873 A CN 106800873A
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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
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2518/00—Other type of polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
Do not glued the present invention relates to a kind of metal base scratch-resistant, high temperature resistant lubricious, belong to high-molecular special engineering plastics technical field.Water paint is made up of the raw material of following mass percent used by the coating：PEKK superfine powders 20~40%, cosolvent 0~10%, thickening colloid 1~10%, color stuffing 0~1.2%, surfactant 0.5~3%, defoamer 0.5~3%, levelling agent 0~2%, remaining is deionized water；The coating molding method of the coating uses air spray finishing, using air drying, middle temperature drying, baking molding three-level moulding process.Scratch-resistant of the invention, high temperature resistant are not glued lubricious strong with base material cohesive force, coating is thin, compared to electrostatic spraying, coating layer thickness is easily controlled, the defects such as surface pinholes are few, single or multiple lift spraying can be carried out, is particularly suited for the relatively thin workpiece of wall thickness, can be widely applied to the high temperature resistant non-sticking linings such as culinary art and food processing apparatus, office equipment, chemical anticorrosion.
Description
Technical field
Smooth priming coat is not glued the present invention relates to a kind of metal base scratch-resistant, high temperature resistant, belongs to high-molecular special work
Engineering plastics technical field.
Background technology
In terms of high temperature resistant non-sticking lining, current effect most preferably fluorocarbon resin coating, such as polytetrafluoroethylene (PTFE) homopolymers
(PTFE), tetrafluoroethylene-perfluoro alkoxy vinyl ethers copolymer (PFA), tetrafluoroethene and hexafluoropropylene copolymer (FEP or
F46).In fluorocarbon resin molecular structure, fluorine element electronegativity is big, and fluorine atom is closely arranged in around C-C skeletons, C-F
Bond energy it is high, fluorine atom plays shielding protection to main chain, these features determine its have uniqueness non-stick and low friction
Property, meanwhile, also coefficient of friction is small, do not absorb water, not viscous, non-ignitable, against weather it is good, temperature in use wide ranges and dielectric properties are excellent
Different the features such as so that fluorocarbon resin coating possesses the good characteristic that other coating do not possess.But, when using PTFE, FEP,
When PFA or the direct coating metal substrate of similar fluorine resin coating, it may appear that adhesion defects, Metal Substrate is directly coated with fluororesin
Plate be it is extremely difficult because the not adhesion characteristics of fluororesin it is difficult to base material be bonded.Therefore, fluorine resin coating is developed
When, it is necessary to develop corresponding bottom coating, as fluor resin coating and the adhesive linkage of base material.Use fluorine resin coating
Many problems are equally existed when carrying out overlay film as priming coat：When repeatedly by heat, humidity, corrosion or similar erosion, apply
Layer can gradually fail, between finishing coat and priming coat, between intermediate layer and priming coat, priming coat inside or priming coat and base material it
Between peeling can all occur.Meanwhile, fluororine-carbon coating also wearability it is not good, hardness is not high, resistance to elevated temperatures is poor the shortcomings of.
The content of the invention
Smooth priming coat is not glued it is an object of the invention to provide a kind of metal base scratch-resistant, high temperature resistant, solves biography
System Fluorocarbon resin coating is thick, the not low problem of scratch-resistant, hardness, with the spy that the adhesive force of base material is strong, wear-resisting, coating is thin
Point.
Metal base scratch-resistant of the present invention, high temperature resistant do not glue water paint used by smooth priming coat by following matter
The raw material for measuring percentage is made：
Wherein：
The PEKK superfine powders be to be raw material through the electrophilic polymerization method PEKK meal that obtains of synthesis, through end-blocking and
High temperature thermal oxidation crosslinking Treatment, then superfine powder prepared by by low-temperature airflow disintegrating process, are low crystal type polyethylene-ketone-ketone resin,
The trade mark is 561, and granularity is 400~600 mesh, and inherent viscosity is about 0.61~0.68dL/g, and D50 values are about 5-10 μm, and D90 values are about
It is 10-20 μm；
The cosolvent is any one or more in ethanol, ethylene glycol, ethylene glycol ethyl ether, ethylene glycol ether；
The thickening colloid is the aqueous solution of cellulose ethers or polyvinyl alcohol tackifier, viscosity is about 100~
1000cps, preferred viscosity is 200~500cps, and tackifier preferred viscosities are that the hydroxypropyl methyl of 4000~15000cps is fine
Dimension element；
The color stuffing is any in diadust, titanium dioxide, aluminum oxide, hydrophilic silicon oxides, CNT
One kind, granularity is 600~1200 mesh；
The surfactant be anionic high molecular weight carboxylic ammonium type surfactant or fluorocarbon surfactant,
It is preferred that AFCONA5071；
The defoamer is organic silicon defoamer, preferably AFCONA2524, BYK-021 or BYK-094；
The levelling agent is aqueous silicon-base levelling agent, preferably AFCONA3580 or AFCONA3585；
The preparation method of water paint is as follows：
First to deionized water, cosolvent, surfactant, levelling agent, the defoamer that proportional quantity is sequentially added in agitator
Mixing is stirred, PEKK superfine powders and color stuffing is added, is stirring evenly and then adding into thickening colloid to modulate viscosity, it is agitated
After deaeration or vacuum defoamation, water paint is obtained；Wherein, agitator uses the pusher agitating paddle of low sheraing, speed of agitator control
System is preferably uniformly dispersed in 100~200r/min before spraying using homogeneous emulsifying machine, but should be noted should not introduce air thus
Bubble；
The coating molding method of coating is comprised the following steps：
(1) pretreatment of base material：
Workpiece is made an overall screening using mechanically or chemically surface treatment mode, the surface roughness (Ra values) after treatment
It is the 20~25% of thickness of dry film (DFT), is then cleaned one time with solvent (the conventional organic solvent such as ethanol, acetone), dries up table
Face, the workpiece that will be handled well is rationally placed to be painted；Wherein, the workpiece material is aluminium, copper, carbon steel, stainless steel and other metal materials
Or the inorganic material such as glass, ceramics, the surface treatment mode of workpiece is mechanical grinding, sandblasting, ball blast or chemical derusting, removes
Oil, solvent cleaning etc. conventional surface process means, workpiece surface roughness according to needed for film thickness monitoring between 2-50 μm；
(2) before spraying, the water paint for preparing is filtered using 100 mesh filter screens, is then added into spray
In kettle, compressed air is connected, adjust air capacity and inlet amount knob, water paint is equably sprayed into workpiece by spray gun
On, after the completion of spraying, whether range estimation paint film has impurity, pin hole or bubble, such as defective, clears up again, repeats the above steps, weight
New spraying, until obtaining qualified paint film；
(3) above-mentioned qualified workpiece is placed into 5~10min at room temperature, the non-spraying area of workpiece is cleaned after workpiece dries
Powder, then moves it into 5~10min of drying in 80~120 DEG C of baking ovens of (preferably 120 DEG C), then drying spraying workpiece is moved
Enter design temperature to toast film forming in the high temperature oven of 340~380 DEG C (preferably 350 DEG C), when workpiece substrate temperature reaches setting
After temperature, toast 5~10min, it is to be coated in bright paint film when；
(4) finished work-piece is taken out by high temperature oven, naturally cools to room temperature, if necessary to laminated coating, weight
Multiple step (2)~(3), detect film forming thickness and coating quality, packaging and storage.
Preferred technical scheme is as follows：
Spray gun uses high flow capacity low pressure air gun (HVLP), such as the W77-21S spray guns of ANEST companies, nozzle diameter
It is 0.8-1.8mm, preferably 1-1.5mm；Spraying air pressure is 0.2-0.34MPa, preferably 0.25-0.3MPa；Spray distance is
200-300mm, coating spray volume is 95-300mL/min, and spraying swath is 100-265mm, as far as possible in relatively low gas during regulation spray gun
Pressure reach preferable atomization situation, during spraying the body of a gun try one's best it is vertical with sprayed surface holdings, spray gun running orbit and spray table
Face is parallel.
Compressed air must be clean, free from foreign meter, oily or moisture, otherwise, transforms compressed air drying system or adds
Oil water separator, in order to avoid there are the defects such as impurity, pin hole, influences coating quality.
The thickness of signal layer coating is 5-50 μm, and laminated coating thickness is 50-150 μm, and the spraying each time of laminated coating should
Film compared with signal layer coating is thin.
Beneficial effects of the present invention are as follows：
Metal base scratch-resistant of the invention, high temperature resistant do not glue smooth priming coat and base material cohesive force is strong, and coating is thin, can
Preventing from being corroded because of heat, moisture, chemical attack etc. makes coating be peeled off from base material, so as to improve corrosion resistance, resistance to steam and durable
The performances such as property, more than 240 DEG C of long-term use temperature is highly suitable to be applied for high temperature resistant non-sticking lining field, compared to electrostatic spraying,
Coating layer thickness is easily controlled, and the defect such as surface pinholes is few, high, resistance to wear-resisting, scratch-resistant, hardness compared to fluorocarbon resin coating
The chemically excellent, excellent properties such as cementability is not good, heat resistance is high, compared to other fluoro coatings composite coatings, and with coating it is single,
The advantages of laminated coating associativity is good, spraying operation is good, can carry out single or multiple lift spraying, be particularly suited for wall thickness relatively thin
The workpiece of (thickness is not more than 5mm), can be widely applied to the resistance to height such as culinary art and food processing apparatus, office equipment, chemical anticorrosion
Warm non-sticking lining.
Brief description of the drawings
Fig. 1 is picture of the model coating of embodiment 1 under 200 power microscopes；
Fig. 2 is picture of the model coating of embodiment 2 under 200 power microscopes；
Fig. 3 is picture of the model coating of embodiment 3 under 200 power microscopes；
Fig. 4 is picture of the model coating of embodiment 4 under 200 power microscopes；
Fig. 5 is picture of the model coating of embodiment 5 under 200 power microscopes；
Fig. 6 is picture of the model coating of embodiment 6 under 200 power microscopes；
Fig. 7 is picture of the model coating of embodiment 7 under 200 power microscopes；
Fig. 8 is picture of the model coating of embodiment 8 under 200 power microscopes.
Specific embodiment
The present invention is described further with reference to embodiments.
Embodiment
Coating performance method of testing：
1st, coating layer thickness test
Normative reference《The measure of GBT 13452.2-2008 paint and varnish film thicknesses》, specific method of testing is as follows：
1. check that metal coating calibrator is transferred to " Fe " or " NFe " and is zeroed on corresponding calibration plate by model base material by base material；②
5 different points are taken at the flat place of pot internal layer test thickness, record data respectively；3. a maximum and a minimum are removed
Value, finally takes value range analyze data.
2nd, cross-cut methods testing coating adhesive force：
Normative reference《The scratch experiment of the paint and varnish paint films of GBT 9286》, specific method of testing is as follows：1. wallpaper is used
Knife and hundred panels draw the 10*10 small grid of (100) 1mm*1mm on test sample surface, and each line all should be deep and be applied
Layer bottom；2. coating surface chip is cleaned out with hairbrush；3. with the tested small grid of 3M600 adhesive tapes secure bond, and
Exerted oneself to wipe adhesive tape with erasing rubber, to increase the contact area and dynamics of adhesive tape and tested region；4. adhesive tape one is held
End, shuts down rapidly adhesive tape in vertical direction, and same position is tested twice；5. a maximum and a minimum are removed
Value, finally takes value range, analyze data.
Adhesive force evaluation criterion：
0 grade：Cut edge smooths completely, and none lattice comes off；
1 grade：There is a little coating shedding in otch infall, but cross-cut area is impacted can not be significantly greater than 5%；
2 grades：There is coating shedding in otch infall and/or along notching edge, impacted cross-cut area is substantially big
In 5%, but 15% can not be significantly greater than；
3 grades：Coating is partly or entirely come off along notching edge with big fragment, and/or on grid different parts part or
All peel off, impacted cross-cut area is significantly greater than 15%, but can not be significantly greater than 35%；
4 grades：Coating is peeled off along the big fragment of notching edge, and/or peeling off partly or entirely occur in some grids, impacted
Cross-cut area is significantly greater than 35%, but can not be significantly greater than 65%；
5 grades：The degree of stripping is more than 4 grades.
3rd, heatproof non-stick test：
Normative reference《The domestic food metal cooking utensils non-adhering surfaces performances of GBT 32095.2 and test specification part 2
Non-stick and wearability test specification》, specific method of testing is as follows：1. model is wiped with the soft cloth with vegetable oil, Ran Houyong
55 DEG C~65 DEG C warm water cleanings containing abluent are dried；2. the model that will be scrubbed lies against and heated on electrothermal furnace, temperature control
System is at 150 DEG C~180 DEG C；3. infrared radiation thermometer sample plate temperature is used, after temperature is reached in prescribed limit, by Fresh Egg
Beat in specimen surface, the moment notes specimen surface temperature change, hold in range temperature, after after Chicken Albumin solidification, will with wood shovel
Egg is scooped up；4. observation model coating surface whether there is bur, and records test result；5. repeat, in same position operation, to do number
According to comparing.
Heatproof non-stick evaluation criterion：
Fried egg stipulated number, the complexity that record peels off egg from coating surface.Evaluation criterion is as follows：
5 grades (very good)：In the no adhesion of the center and peripheral of egg, easily slide；
4 grades (good)：There is slight adhesion at the edge of egg, slide easily；
3 grades (medium)：Edge adhesion is consolidated, and center easily slides, and can only be slid in inclination or concussion；
2 grades (poor)：Needing very big dynamics just can slide egg, but be complete.Can not slide；
1 grade (excessively poor)：Can completely does not slide egg from surface.
4th, wearability test
Normative reference《The domestic food metal cooking utensils non-adhering surfaces performances of GBT 32095.2 and test specification part 2
Non-stick and wearability test specification》, specific method of testing is as follows：1. test plate (panel) is arranged on the reciprocating support thing of weight 3kg simultaneously
Mounted 3M-7447B scouring pads are placed on non-sticking lining surface.(7447B scouring pads size (70 ± 5) mm* (30 ± 5)
mm*5mm.)；2. with the dish detergent 50ml of concentration 5g/l, lubrication non-sticking lining surface；3. wear-resistant pad is kept to stand, in
Heart point both sides with 100mm as spacing before and after move back and forth supporter 250 times, it is every 250 times replacing wear-resistant pad；4. it is clear with clear water
Lapped face is washed, the film in test plate (panel) mid-length 8cm regions is visually inspected under fluorescent light, observe it whether damaged and expose bottom
Material；Base material or cut are exposed more than 5 as terminating point with coating.5. same sample prepares two boards or test specimen and carries out parallel examination
Test, wipe during to stipulated number, " passing through ", analyze data are chosen as to there is one piece not expose base material in two pieces of test plate (panel)s or test specimen.
5th, scratch-resistant test
Test method：1. model is placed on above heating dish, is buckled with carbine, then metal refill for ball-point pen, profit are installed
Refill for ball-point pen tip is set to be maintained at the same horizontal plane with level meter；2. dead load counterweight (about 400g) constant weight test；3. open
Power switch intensification is opened, testing time and test temperature is concurrently set：The testing time of sample is that 30min (change by refill for ball-point pen
Time is also half an hour), bottom surface actual temperature during sample test is 200 ± 10 DEG C；4. after temperature reaches measured value, open
Instrument runs.Prevent desired temperature inconsistent with actual test value, thermometric can be aided in temperature measurer；5. after instrument operation, see
Examine and record that sample surfaces start the peeling time and sample starts to reveal the base material time；6. after test terminates, under fluorescent light or light
Visually sample is worn situation in line bright place, if exposes base material, makes a record and do data analysis.
Scratch-resistant evaluation criterion：
(1) (obvious) peeling time is started：Record starts the time of (obvious) peeling, if after five minutes.
(2) differentiate and expose ground：If can judge substantially show-through in test, test terminates, recording test time, and product is not
It is qualified.If test terminates rear not show-through material, product is qualified；Show-through material, product is unqualified.
The material quality percentage proportioning of water paint used by coating is shown in Table 1.
Component and the mass percent proportioning of the water paint of table 1
Sandblasting, mechanical fine sandpaper polishing are carried out to aluminium test piece, and aluminium test piece is cleaned with ethanol equal solvent, dry up surface, will
The workpiece handled well is hung up and places to be painted；Prewired water paint is poured into agitator, using water or thickening colloid regulation water
The viscosity of property dispersion liquid, using rotation viscometer tested viscosity (No. 3 rotors, 20 revs/min), then about 10 points of stirring at low speed
Clock, is crossed vacuumizing and defoaming 3-5 minutes after 100 mesh filter clothes, and bubble is removed substantially, and barrelling is standby；Connection compressed air, air pressure is about
0.3MPa, to half kettle about 200g water paints are poured into watering can, regulation air capacity and inlet amount knob are imitated with reaching optimal atomization
Really, aluminium test piece is then sprayed, after the completion of spraying, whether range estimation paint film there are the defects such as impurity, pin hole, bubble, such as defective, again
Cleaning, repeats above-mentioned steps, sprays again, until obtaining qualified paint film；Above-mentioned qualified workpiece is placed about 10 at room temperature
Minute, after workpiece liquid film dries, the powder of the non-spraying area of workpiece is cleaned, then move it into baking in 80-120 DEG C of baking oven
Dry 10 minutes, then will dry during spraying workpiece moves into the high temperature oven that design temperature is 350 DEG C -380 and toast film forming, toast about 5-
10 minutes, it is to be coated in bright paint film when；Finished work-piece is taken out from high temperature oven, room temperature is naturally cooled to,
Detection film forming thickness and properties, testing result are shown in Table 2.
The testing result of table 2
By table 2, it can be seen that from different series and intrinsic viscosity PEEK when, the performance and technique poor practicability of coating
Not substantially, adhesive force, non-stick, scratch resistance of coating etc. can be made during the low crystal type PEEK resins for from the trade mark being 561
Performance is more superior.Meanwhile, the optimum proportioning of associated formula is：Surface-active contents are about 2-5%, and solid content is about 25-
28%, thickening colloidal content is about 5%, and defoamer is about 2-3%.
Claims (3)
1. a kind of metal base scratch-resistant, high temperature resistant are not glued lubricious, it is characterised in that：
Water paint used by coating is made up of the raw material of following mass percent：
Remaining is deionized water；
Wherein：
The PEKK fine powders are low crystal type polyethylene-ketone-ketone resin, and the trade mark is 561, and granularity is 400~600 mesh；
The cosolvent is any one or more in ethanol, ethylene glycol, ethylene glycol ethyl ether, ethylene glycol ether；
The thickening colloid is the aqueous solution of cellulose ethers or polyvinyl alcohol tackifier, and viscosity is about 100-1000cps；
The color stuffing is any one in hydrophilic silicon oxides, diadust, titanium dioxide, aluminum oxide, CNT,
Granularity is 600~1200 mesh；
The surfactant is anionic high molecular weight carboxylic ammonium type surfactant or fluorocarbon surfactant；
The defoamer is organic silicon defoamer；
The levelling agent is aqueous silicon-base levelling agent；
The preparation method of water paint is as follows：
First carry out to sequentially adding the deionized water of proportional quantity, cosolvent, surfactant, levelling agent, defoamer in agitator
Stirring mixing, adds PEKK superfine powders and color stuffing, is stirring evenly and then adding into thickening colloid to modulate viscosity, agitated deaeration
Or after vacuum defoamation, obtain water paint；Wherein, agitator uses the pusher agitating paddle of low sheraing, and speed of agitator control exists
100~200r/min；
The coating molding method of coating is comprised the following steps：
(1) pretreatment of base material：
Base material is made an overall screening using mechanically or chemically surface treatment mode, the surface roughness after treatment is thickness of dry film
20~25%, then cleaned with solvent one time, dry up surface, the workpiece that will be handled well is rationally placed to be painted；
(2) before spraying, the water paint for preparing is filtered using 100 mesh filter screens, is then added into watering can,
Connection compressed air, adjusts air capacity and inlet amount knob, and water paint is equably sprayed on workpiece by spray gun, sprays
After the completion of, whether range estimation paint film has impurity, pin hole or bubble, such as defective, clears up again, repeats the above steps, and sprays again,
Until obtaining qualified paint film；
(3) above-mentioned qualified workpiece is placed into 5~10min at room temperature, the non-spraying area powder of workpiece is cleaned after workpiece dries,
Then move it into and 5~10min dried in 80~120 DEG C of baking oven, then will drying spraying workpiece move into design temperature be 340~
Film forming is toasted in 380 DEG C of high temperature oven, after workpiece substrate temperature reaches design temperature, 5~10min is toasted, it is to be coated to be in
During bright paint film；
(4) finished work-piece is taken out by high temperature oven, naturally cools to room temperature, if necessary to laminated coating, repeat to walk
Suddenly (2)~(3), detect film forming thickness and coating quality, packaging and storage.
2. metal base scratch-resistant according to claim 1, high temperature resistant are not glued lubricious, it is characterised in that：Spray gun
Using high flow capacity low pressure spray gun, nozzle diameter is 0.8-1.8mm, and spraying air pressure is 0.2-0.34MPa, and spray distance is
200-300mm, coating spray volume is 95-300mL/min, and spraying swath is 100-265mm, and spray gun running orbit is put down with sprayed surface
OK.
3. metal base scratch-resistant according to claim 1, high temperature resistant are not glued lubricious, it is characterised in that：Individual layer
The thickness of coating is 5-50 μm, and laminated coating thickness is 50-150 μm, and spraying each time for laminated coating should be compared with signal layer coating
Film is thin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056046.9A CN106800873A (en) | 2017-01-25 | 2017-01-25 | Metal base scratch-resistant, high temperature resistant do not glue smooth priming coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056046.9A CN106800873A (en) | 2017-01-25 | 2017-01-25 | Metal base scratch-resistant, high temperature resistant do not glue smooth priming coat |
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| CN106800873A true CN106800873A (en) | 2017-06-06 |
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| CN201710056046.9A Pending CN106800873A (en) | 2017-01-25 | 2017-01-25 | Metal base scratch-resistant, high temperature resistant do not glue smooth priming coat |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109608952A (en) * | 2018-11-23 | 2019-04-12 | 山东凯盛新材料股份有限公司 | Polyether ketone ketone reinforced fluorine resin vacuum-resistant scratch resistant coatings |
| CN110646161A (en) * | 2019-11-01 | 2020-01-03 | 中国空气动力研究与发展中心高速空气动力研究所 | Measured object surface treatment method for oil film interference measurement |
| CN115141534A (en) * | 2021-03-30 | 2022-10-04 | 浙江天喜厨电股份有限公司 | Microwave oven and manufacturing method thereof |
| CN115491107A (en) * | 2022-09-02 | 2022-12-20 | 上海寅汀高科技材料有限公司 | Wear-resistant high-temperature-resistant fluorine-free coating |
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| CN115141534A (en) * | 2021-03-30 | 2022-10-04 | 浙江天喜厨电股份有限公司 | Microwave oven and manufacturing method thereof |
| CN115491107A (en) * | 2022-09-02 | 2022-12-20 | 上海寅汀高科技材料有限公司 | Wear-resistant high-temperature-resistant fluorine-free coating |
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