CN106554715A - Anti-corrosion abrasion-resistant powder coating and its preparation technology - Google Patents
Anti-corrosion abrasion-resistant powder coating and its preparation technology Download PDFInfo
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- CN106554715A CN106554715A CN201510640644.1A CN201510640644A CN106554715A CN 106554715 A CN106554715 A CN 106554715A CN 201510640644 A CN201510640644 A CN 201510640644A CN 106554715 A CN106554715 A CN 106554715A
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Abstract
Anti-corrosion abrasion-resistant powder coating and its preparation technology, the method includes：Weigh 100 parts of thermoplastic polyamide resin, carbon fiber 0.2.1 parts, 1.3 parts of molybdenum bisuphide and glycidoxypropyltrimethoxysilane alkane 0.05-0.15 parts composition, in terms of parts by weight, mixture is made fully to soak in being subsequently adding the mixed solvent being made up of absolute ethyl alcohol and acetone, through heating stirring, when thing to be mixed is into bulk, move into baking oven, dry at 70-90 DEG C, after mixture is sieved 80 mesh powdery paints, when making each powdery paints, the percent by volume of absolute ethyl alcohol and acetone is 1: 1-1.2.One kind is provided and can be widely applied for metal machinery pipeline, the high intensity with reinforcing effect, anticorrosive, anti abrasive powdery paints and preparation method thereof.
Description
Technical field
The present invention relates to a kind of anti-corrosion abrasion-resistant powder coating and its preparation technology.
Background technology
Corrosion is the most important reason of many metal materials, equipment and container failure, and the whole world is thus resulted in every year
Economic loss be quite surprising.The corrosion of the water-cooled tube wall of an industrial boiler always important economy and
Technical problem, during one's term of military service, as the effect such as corrosion erosion makes
Pipe premature failure, retubes particularly expensive；Fluid machinery always runs into fluid or fluid at work
Particle washes away the destruction for causing mechanical surface.Existing anticorrosive metal technology is usually to adopt two ways：
One kind is that, from anti-corrosion materials such as stainless steel or fiberglass, its advantage is that corrosion fatigue life is long, but selling at exorbitant prices,
Contact corrosion can be produced in stainless welding position, and the undertaking site of fiberglass then intensity is not enough.It is another kind of
Mode is to apply one layer of anti-corrosive paints on the metal surface, but this coating can not form the coating of thickness, and this
Plant coating and toxic organic solvent is discharged in spraying process, be unfavorable for environmental protection.Chinese patent CN85100697B
A kind of fast-ionic conductor anticorrosive metal composite coating is disclosed, fast-ionic conductor space electric field anti-corrosion is used
Guard method, anticorrosion ability are good, but this coating wear resistance bad.
Therefore seek to select a kind of spraying process simple, and pollute little surface strengthening technology, preparation high intensity,
Wear-resistant, corrosion-resistant coating becomes the key for solving the wear-resistant requirement of metals against corrosion.
The content of the invention
It is an object of the invention to overcome prior art not enough, there is provided one kind can be widely applied for metal machinery pipe
Road, the high intensity with reinforcing effect, anticorrosive, anti abrasive powdery paints and preparation method thereof.
The purpose of the present invention can be realized by following measures：
Anti-corrosion abrasion-resistant powder coating, is made up of base-material, filler and coupling agent.Base-material is selected from thermoplastic poly
Amide resin, filler are carbon fiber and molybdenum bisuphide, in order to be uniformly dispersed, improve the compatibility of filler and base-material,
The present invention is also added into a small amount of γ-glycidoxypropyltrimethoxysilane alkane as coupling agent.
A kind of anti-corrosion abrasion-resistant powder coating, it is characterised in that powdery paints is by thermoplastic polyamide resin 100
Part, carbon fiber 0.2-1 parts, curing aluminium 1-3 parts and glycidoxypropyltrimethoxysilane alkane
0.05-0.15 parts constitute, in terms of parts by weight.
The thermoplastic polyamide resin that the present invention is selected, powder, 100～120 μm of granularity, density is
1.12～1.14g/l, fusing point are 200 DEG C, and decomposition temperature is 450 DEG C, thermal spraying temperature range width, spraying temperature
Between fusing point and decomposition temperature, polymer is not decomposed and degraded, and molecular structural formula cell cube is for control：
[-NH-(CH2)5-CO-]
Be one kind using repetitive amide group (C (O)-NH-) as the condensation polymer of main polymer chain, being capable of shape
Into hydrogen bond, degree of crystallinity is high, and mechanical performance is excellent, special with tough and tensile, wear-resisting, solvent resistant, oil resistant, self-lubricating
Point, one 50～100 DEG C of Long-Time Service temperature.
What carbon fiber selected by of the invention played a part of is reinforcing agent, is PAN type carbon fibers, and length is less than
0.2 millimeter, diameter is below 15 microns.
Selected by of the invention, molybdenum bisuphide can improve wearability as lubricant.Its purity should be greater than 98wt
%, granularity should be controlled below 5 microns.
The preparation method of anti-corrosion abrasion-resistant powder coating, it is characterised in that the method includes：Weigh thermoplastic poly
100 parts of amide resin, carbon fiber 0.2.1 parts, 1.3 parts of molybdenum bisuphide and glycidyl ether propyl group front three
TMOS 0.05-0.15 parts constitute, in terms of parts by weight；It is subsequently adding what is be made up of absolute ethyl alcohol and acetone
Mixture is fully soaked in mixed solvent, through heating stirring, when thing to be mixed is into bulk, move into baking oven,
At 70-90 DEG C dry, after mixture is sieved 80 mesh powdery paints.
When making each powdery paints, absolute ethyl alcohol and the percent by volume of acetone are 1: 1-1.2.
The spraying method of the present invention is that the mixture for processing is sprayed on metal using plastispray equipment
Piece surface.First metal parts surface is carried out being roughened, purified treatment, then arrived using flame preheating part
80 DEG C, adjust spray parameters：Acetylene gas 0.05～0.1MPa of pressure, compressed air pressure 0.4MPa, spray gun
Translational speed control is 150mm～250mm in 0-1m/min, spray distance, is finally sprayed, naturally cold
But, obtain the coating of 0.25.0.50 millimeters.
The present invention adopts flame spray technique prepares coating, and the technology is a kind of high-quality, the surface peening of low cost
The advantages of technology, deposition efficiency height short with the operation cycle, short construction period, its spraying principle is using pressure
Contracting air. acetylene torch, using the method for boiling powder feeding, by spray gun, powder is heated to into molten condition,
And thing surface to be painted is ejected into, obtain the polymer coating of flat smooth.Spray is made using plastispray equipment
Rifle structure can add a layer compression air curtain between flame and plastic powders, to reduce and control flame pair
The degree of heat of powder, prevents polymer from decomposing.
Coating imporosity, shock resistance are good, with excellent wear-resistant and corrosion resistance, it is adaptable to various
In the particular surroundings such as solvent medium, humid atmosphere, solution corrosion, be widely used in food machinery, in printing house
The pump of long-term immersion dyestuff, support etc., some inner surface of container of petrochemical industry application, screw propeller,
The equipment such as papermaking equipment guide rail, spinning frame variable-speed shaft, pharmaceutical factory's tower, kettle, storage tank, basin.
The main performance index of the coating of the present invention is as shown in the table：
Specific embodiment
Embodiment 1：
Weigh thermoplastic polyamide resin 100g, carbon fiber 0.2g, molybdenum bisuphide 1g, γ-glycidol ether
Base propyl trimethoxy silicane 0.05g, with the mixed solvent of 300ml acetone and absolute ethyl alcohol, (volume ratio is：Third
Ketone: absolute ethyl alcohol=1: 1) soaks mixture, through heating stirring, makes solvent volatilize, thing to be mixed is blocking
During shape, move into baking oven, under 80～C dry, after mixture is sieved 80 mesh powdery paints.
The mixture for processing is sprayed on by metal parts table using CMD-PS plastics powder spray coating device
Face.First metal parts surface is carried out being roughened, purified treatment, then arrived using flame preheated metallic part
80 DEG C, adjust spray parameters：Acetylene gas 0.05～0.1MPa of pressure, compressed air pressure 0.4MPa, send
Powder atmospheric pressure is 0.4MPa, is then sprayed, natural cooling, obtains the compound painting of certain thickness polymer
Layer.During spraying, nozzle is to by spray surface distance, in 200mm, the control of spray gun translational speed is applied in 0.1m/min
Thickness degree is 0.35～0.40 millimeter.
Embodiment 2：
Polyamide 100g, carbon fiber 0.6g, molybdenum bisuphide 1g, γ-glycidyl ether propyl group front three
TMOS：0.05g.Preparation method such as embodiment 1.
Embodiment 3：
Polyamide 100g, carbon fiber 1g, molybdenum bisuphide 1g, γ-glycidyl ether propyl group trimethoxy
Base silane：0.1g.Preparation method such as embodiment 1.
Embodiment 4：
Polyamide 100g, carbon fiber 0.2g, molybdenum bisuphide 3g, γ-glycidyl ether propyl group trimethoxy
Base silane：0.15g.Preparation method such as embodiment 1.
Claims (1)
1. anti-corrosion abrasion-resistant powder coating and its each technique of system, it is characterised in that the method includes：Weigh
100 parts of thermoplastic polyamide resin, carbon fiber 0.2.1 parts, 1.3 parts of molybdenum bisuphide and glycidyl ether
Propyl trimethoxy silicane 0.05-0.15 parts constitute, and in terms of parts by weight, are subsequently adding by absolute ethyl alcohol and third
Mixture is fully soaked in the mixed solvent of ketone composition, through heating stirring, when thing to be mixed is into bulk, move
Enter baking oven, dry at 70-90 DEG C, after mixture is sieved 80 mesh powdery paints, make each powder and apply
During material, absolute ethyl alcohol and the percent by volume of acetone are 1: 1-1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640644.1A CN106554715A (en) | 2015-09-25 | 2015-09-25 | Anti-corrosion abrasion-resistant powder coating and its preparation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640644.1A CN106554715A (en) | 2015-09-25 | 2015-09-25 | Anti-corrosion abrasion-resistant powder coating and its preparation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106554715A true CN106554715A (en) | 2017-04-05 |
Family
ID=58417436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510640644.1A Pending CN106554715A (en) | 2015-09-25 | 2015-09-25 | Anti-corrosion abrasion-resistant powder coating and its preparation technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106554715A (en) |
-
2015
- 2015-09-25 CN CN201510640644.1A patent/CN106554715A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170405 |