CN109913132A - A kind of preparation process of ceramic coating - Google Patents
A kind of preparation process of ceramic coating Download PDFInfo
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- CN109913132A CN109913132A CN201711312151.0A CN201711312151A CN109913132A CN 109913132 A CN109913132 A CN 109913132A CN 201711312151 A CN201711312151 A CN 201711312151A CN 109913132 A CN109913132 A CN 109913132A
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Abstract
The invention discloses a kind of preparation processes of ceramic coating, its key points of the technical solution are that including following preparation process, step 1: preparing colloidal sol: being that 5 ~ 7 parts of water-insoluble siloxanes, 20 ~ 25 parts of alkoxide, 50 ~ 80 parts of organic solvents and 5 ~ 8 parts of ackd salt catalysts are added in 50 ~ 70 parts of ceramic packings to hydrolyze solvent to parts by weight, generate nanoparticle and form colloidal sol；Step 2: preparing gel: 10 ~ 25 parts of polymer, curing agent and diluent being added into colloidal sol and stirs evenly, heats, solvent volatilization colloidal sol forms gel.The coating system stability generated by sol-gel method is high, and service performance is more stable；Stability is high between the filler of ceramics through oversintering, and the paint stability of formation is good；Ceramic coating can be used for aerospace field, and stability is high；The use of water-insoluble siloxanes good dispersion, the coating system of formation can stablize between other components.And the coating in present specification has high rigidity, high glaze, antifouling, waterproof, ageing-resistant excellent performance.
Description
Technical field
The present invention relates to paint field, in particular to a kind of ceramic coating and its preparation process.
Background technique
As most widely used fluorocarbon coating, mostly organic solvent type coatings in existing domestic and international curtain wall decoration, and
Its film forming matter is organic resin, in many aspect Shortcomings, as hardness is low, and gloss is low, soil resistance is poor etc., therefore anti scuffing
Property, dicoration, durability, self-cleaning etc. are not fully up to expectations.Especially fire protecting performance is poor, can produce when encountering high temperature, open fire
Raw a large amount of toxic and harmful gas, bring huge life and property loss to user.
Nano paint is generally combined by nano material and organic coating.The preparation method of nano paint has generally comprised
Four kinds: (1) sol-gal process, by in-situ preparation of the nanoparticle in monomer or resin solution；(2) situ aggregation method refers to and receives
Rice corpuscles is directly dispersing in monomer, and nano paint is generated after polymerization；(3) blending method refers to nanoparticle and resin solution or cream
The composite of liquid；(4) graft process enters inorganic nano interlayer by monomer or polymer solution, and nano paint, but this is made
Kind method is only suitable for the layered inorganic material of montmorillonite one kind.
But existing nano paint can exist in production and processing and disperse non-uniform problem, dispersion is uneven not only up to
Less than the desired effect of coating, but also the stability of coating can be destroyed.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of preparation work of ceramic coating
Skill, is uniformly dispersed between each component and system stability with higher.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of system of ceramic coating
Standby technique, including following preparation process,
Step 1: prepare colloidal sol: to parts by weight be added in 50~70 parts of ceramic packings 5~7 parts of water-insoluble siloxanes, 20~
The acid salt catalyst of 25 parts of alkoxide, 50~80 parts of organic solvents and 5~8 parts, generates nanoparticle and forms colloidal sol；
Step 2: it prepares gel: 10~25 parts of polymer, curing agent and diluent being added into colloidal sol and stirs evenly, heats, it is molten
Agent volatilization colloidal sol forms gel.
Through the above technical solutions, the process of sol-gel can be by the compound of the high activity chemical constituent in component
It is uniformly mixed under liquid phase, and is hydrolyzed, is condensed chemical reaction, form stable transparent or semitransparent sol body in the solution
System, colloidal sol form the gel of three-dimensional space network structure, are filled with and lose between gel network through the slow polymerization between curing micelle
The solvent of mobility forms gel.Water-insoluble siloxanes can increase the bridging property of system and divide during configuring colloidal sol
Dissipate uniformity；Alkoxide can introduce the intensity and wear-resisting property of minor metallic element enhancing coating；Acid salt catalyst can promote
Degree is carried out into the reaction between component.The addition of polymer enhances the adhesivity of coating in gel preparation course simultaneously.
The present invention is further arranged to: the ceramic packing includes following parts by weight component: 40~70 parts of boron carbide, carbon
15~30 parts of tungsten of change, 5~15 parts of chromium carbide, 5~15 parts of silicon carbide, 5~15 parts of aluminium oxide and 5~10 parts of mangano-manganic oxide.
Through the above technical solutions, the addition of boron carbide, tungsten carbide, chromium carbide, silicon carbide, aluminium oxide and mangano-manganic oxide
The intensity and wear-resisting property of coating can be increased, so that coating can be in aerospace field application.
The present invention is further arranged to: the ceramic packing through high temperature sintering by being made.
Through the above technical solutions, the process of sintering is capable of forming certain gap structure, divide between convenient and other components
It dissipates uniform.
The present invention is further arranged to: further including having 5~7 parts of carbon fibers in the ceramic packing.
Through the above technical solutions, process of the ceramic packing through oversintering, activity are excited, carbon fiber can be filled in it
In his active filler, stable structure is formed, the stability of coating is high.
The present invention is further arranged to: the water-insoluble siloxanes selection dimethicone or 1,3,5,7- tetramethyl-ring
Tetrasiloxane.
Through the above technical solutions, the use of water-insoluble siloxanes can enhance the hydrophobic performance of coating, then paint layer table
Face survivable surface in cleaning；Wherein dimethicone and 1,3,5,7- tetramethyl-ring tetrasiloxane electrical insulating property and weather-proof
Property, hydrophobicity it is good and have very high anti-shear ability；
The present invention is further arranged to: the alkoxide selects aluminium isopropoxide, tert-butyl alcohol aluminium, titanium ethanolate, normal propyl alcohol titanium, n-butyl titanium
Or one of tert-butyl alcohol titanium.
Through the above technical solutions, aluminium isopropoxide, tert-butyl alcohol aluminium, titanium ethanolate, normal propyl alcohol titanium, n-butyl titanium and tert-butyl alcohol titanium
Use be capable of providing enhancing to component minor metallic element system intensity.
The present invention is further arranged to: the organic solvent selection methanol or ethyl alcohol.
Through the above technical solutions, the use of methanol or ethyl alcohol can dissolve alkoxide to a certain extent, promote reaction
It carries out.
The present invention is further arranged to: the ackd salt catalyst choice phosphotungstic acid sylvite, heteropoly acid sylvite or tantalum niobic acid
One of potassium.
Through the above technical solutions, the addition of phosphotungstic acid sylvite, heteropoly acid sylvite or potassium tantalate-niobate can promote colloidal sol
Fast and stable is formed.
The present invention is further arranged to: the high hydroxy acrylic acid polyol resin of polymeric oxidizer.
Through the above technical solutions, high hydroxy acrylic acid polyol resin molecular weight with higher can increase system
Stability.
The present invention is further arranged to: the heating method select to be dried in vacuo at 350~450 DEG C or 350~450 DEG C at
Sintering.
Through the above technical solutions, dry or sintering is capable of forming gel rubber system, and dry or sintering process makes shape
At system it is more stable.
In conclusion the present invention having the beneficial effect that in contrast to the prior art
1, the coating system stability generated by sol-gel method is high, and service performance is more stable；
2, stability is high between the filler of the ceramics through oversintering, and the paint stability of formation is good；
3, ceramic coating can be used for aerospace field；
4, the use of water-insoluble siloxanes good dispersion, the coating system of formation can stablize between other components.
Specific embodiment
Invention is further described in detail with reference to embodiments.
Embodiment 1
A kind of preparation process of ceramic coating, including following preparation process,
Step 1: preparing colloidal sol: 5 parts of dimethicones, 20 parts of aluminium isopropoxides, 50 parts of methanol and 5 parts of phosphorus being added into ceramic packing
The catalysis of wolframic acid sylvite generates nanoparticle and forms colloidal sol；
Step 2: preparing gel: 10 parts high hydroxy acrylic acid polyol resin, 5 parts of curing agent and 5 parts of dilutions being added into colloidal sol
Agent stirs evenly, and is dried in vacuo at 350 DEG C, and solvent volatilization colloidal sol forms gel；
Ceramic packing selects 40 parts of boron carbide, 15 parts of tungsten carbide, 5 parts of chromium carbide, 5 parts of silicon carbide, 5 parts of aluminium oxide and four oxidations three
5 parts of manganese.
Embodiment 2
A kind of preparation process of ceramic coating, including following preparation process,
Step 1: preparing colloidal sol: 5 parts of dimethicones, 20 parts of aluminium isopropoxides, 50 parts of methanol and 5 parts of phosphorus being added into ceramic packing
The catalysis of wolframic acid sylvite generates nanoparticle and forms colloidal sol；
Step 2: preparing gel: 10 parts high hydroxy acrylic acid polyol resin, 5 parts of curing agent and 5 parts of dilutions being added into colloidal sol
Agent stirs evenly, and is dried in vacuo at 350 DEG C, and solvent volatilization colloidal sol forms gel；
Ceramic packing selects 40 parts of boron carbide, 15 parts of tungsten carbide, 5 parts of chromium carbide, 5 parts of silicon carbide, 5 parts of aluminium oxide, four oxidations three
5 parts and 5 parts of carbon fiber of manganese.
Embodiment 3
A kind of preparation process of ceramic coating, including following preparation process,
Step 1: prepare colloidal sol: into ceramic packing be added 6 parts of 1,3,5,7- tetramethyl-ring tetrasiloxanes, 21 parts of tert-butyl alcohol aluminium,
55 parts of ethyl alcohol and 6 parts of heteropoly acid sylvite catalysis, generate nanoparticle and form colloidal sol；
Step 2: preparing gel: 14 parts high hydroxy acrylic acid polyol resin, 6 parts of curing agent and 6 parts of dilutions being added into colloidal sol
Agent stirs evenly, and is sintered at 360 DEG C, and solvent volatilization colloidal sol forms gel；
Ceramic packing selects 45 parts of boron carbide, 17 parts of tungsten carbide, 7 parts of chromium carbide, 7 parts of silicon carbide, 7 parts of aluminium oxide, four oxidations three
6 parts and 6 parts of carbon fiber of manganese.
Embodiment 4
A kind of preparation process of ceramic coating, including following preparation process,
Step 1: preparing colloidal sol: 7 parts of dimethicones, 22 parts of titanium ethanolates, 60 parts of methanol and 7 parts of phosphorus tungsten being added into ceramic packing
Acid potassium salt catalysis generates nanoparticle and forms colloidal sol；
Step 2: preparing gel: 18 parts high hydroxy acrylic acid polyol resin, 7 parts of curing agent and 7 parts of dilutions being added into colloidal sol
Agent stirs evenly, and is dried in vacuo at 350 DEG C, and solvent volatilization colloidal sol forms gel；
Ceramic packing selects 50 parts of boron carbide, 20 parts of tungsten carbide, 10 parts of chromium carbide, 10 parts of silicon carbide, 10 parts of aluminium oxide, four oxidations
Three 7 parts of manganese and 7 parts of carbon fiber.
Embodiment 5
A kind of preparation process of ceramic coating, including following preparation process,
Step 1: prepare colloidal sol: into ceramic packing be added 5 parts of 1,3,5,7- tetramethyl-ring tetrasiloxanes, 23 parts of normal propyl alcohol titaniums,
65 parts of ethyl alcohol and 8 parts of potassium tantalate-niobate catalysis, generate nanoparticle and form colloidal sol；
Step 2: preparing gel: 20 parts high hydroxy acrylic acid polyol resin, 8 parts of curing agent and 8 parts of dilutions being added into colloidal sol
Agent stirs evenly, and is sintered at 360 DEG C, and solvent volatilization colloidal sol forms gel；
Ceramic packing selects 55 parts of boron carbide, 22 parts of tungsten carbide, 12 parts of chromium carbide, 12 parts of silicon carbide, 12 parts of aluminium oxide, four oxidations
Three 8 parts of manganese and 5 parts of carbon fiber.
Embodiment 6
A kind of preparation process of ceramic coating, including following preparation process,
Step 1: preparing colloidal sol: 6 parts of dimethicones, 24 parts of normal propyl alcohol titaniums, 70 parts of methanol and 7 parts of phosphorus being added into ceramic packing
The catalysis of wolframic acid sylvite generates nanoparticle and forms colloidal sol；
Step 2: preparing gel: 21 parts high hydroxy acrylic acid polyol resin, 9 parts of curing agent and 9 parts of dilutions being added into colloidal sol
Agent stirs evenly, and is dried in vacuo at 400 DEG C, and solvent volatilization colloidal sol forms gel；
Ceramic packing selects 60 parts of boron carbide, 25 parts of tungsten carbide, 14 parts of chromium carbide, 14 parts of silicon carbide, 14 parts of aluminium oxide, four oxidations
Three 9 parts of manganese and 6 parts of carbon fiber.
Embodiment 7
A kind of preparation process of ceramic coating, including following preparation process,
Step 1: prepare colloidal sol: into ceramic packing be added 6 parts of 1,3,5,7- tetramethyl-ring tetrasiloxanes, 24 parts of n-butyl titaniums,
70 parts of ethyl alcohol and 7 parts of potassium tantalate-niobate catalysis, generate nanoparticle and form colloidal sol；
Step 2: preparing gel: 21 parts high hydroxy acrylic acid polyol resin, 9 parts of curing agent and 9 parts of dilutions being added into colloidal sol
Agent stirs evenly, and is sintered at 360 DEG C, and solvent volatilization colloidal sol forms gel；
Ceramic packing selects 60 parts of boron carbide, 25 parts of tungsten carbide, 14 parts of chromium carbide, 14 parts of silicon carbide, 14 parts of aluminium oxide, four oxidations
Three 9 parts of manganese and 6 parts of carbon fiber.
Embodiment 8
A kind of preparation process of ceramic coating, including following preparation process,
Step 1: preparing colloidal sol: 7 parts of dimethicones, 25 parts of tert-butyl alcohol titaniums, 80 parts of methanol and 5 parts of phosphorus being added into ceramic packing
The catalysis of wolframic acid sylvite generates nanoparticle and forms colloidal sol；
Step 2: preparing gel: it is dilute that 25 parts high hydroxy acrylic acid polyol resin, 10 parts of curing agent and 10 parts being added into colloidal sol
It releases agent to stir evenly, be dried in vacuo at 450 DEG C, solvent volatilization colloidal sol forms gel；
Ceramic packing selects 70 parts of boron carbide, 30 parts of tungsten carbide, 15 parts of chromium carbide, 15 parts of silicon carbide, 15 parts of aluminium oxide, four oxidations
Three 10 parts of manganese and 7 parts of carbon fiber.
Experiment detection
1, adhesive force detects: (≤1 grade, adhere to good good adhesive force on surfaces such as glass, aluminium, copper, iron, plastics, stainless steels
It is good)；
2, it pencil hardness: is detected according to GB/T 6739-2006, it is desirable that hardness is greater than 6H；
3, shape heat resistance: is no different according to JI/S K5400 detection；
4, artificial ageing resistance: through 5000 hours artificially roughenings, paint film fell off without dusting, no cracking, nothing, is rustless
Erosion；5, shape resistance to artificial contamination: is no different according to JI/S K5400 detection；
6, it brushing resistance: scrubs 12000 times, paint film is without breakage；
7, freeze-thaw resistance: not blistering through 20 freezing-thawing tests, do not peel off, flawless；
8, it moisture-proof (59 DEG C, 95%RH.100 hours): tests within 240 hours, paint film is unchanged；
9, humidity resistance: 240 hours, paint film was unchanged；
10, shape resistance to salt water (5%NaCl 120 hours): is no different according to JI/S K5400 detection；
11, solvent resistance: MIBK wiping 100 times without exception；
12, shape alkali resistance (5% sodium carbonate 168 hours): is no different according to JI/S K5400 detection；
13, shape acid resistance (30% sulfuric acid 4 hours): is no different according to JI/S K5400 detection；
14, it is wrinkle resistant that 25 DEG C of 90 hours bubbles in motor petrol petrol-resistance: are dipped in；
15, resistance to transformation is gasoline: it is wrinkle resistant to be dipped in 25 DEG C of 90 hours bubbles in motor petrol.
The experimental test data of 1 Examples 1 to 8 of table
According to table 1 it can be concluded that the experimental data of Examples 1 to 8 meets the requirements, and by list data it can be concluded that the application
Coating in file has high rigidity, high glaze, antifouling, waterproof, ageing-resistant excellent performance.
The above is only exemplary embodiment of the invention, protection scope and is not intended to limit the present invention, this hair
Bright protection scope is determined by the attached claims.
Claims (10)
1. a kind of preparation process of ceramic coating, it is characterized in that: include following preparation process,
Step 1: prepare colloidal sol: into ceramic packing be added 5 ~ 7 parts of water-insoluble siloxanes, 20 ~ 25 parts of alkoxide, 50 ~ 80 parts have
Solvent and 5 ~ 8 parts of ackd salt catalysts generate nanoparticle and form colloidal sol；
Step 2: preparing gel: it is equal that 10 ~ 25 parts of polymer, 5 ~ 10 parts of curing agent and 5 ~ 10 parts of diluent stirrings being added into colloidal sol
Even, heating, solvent volatilization colloidal sol forms gel.
2. the preparation process of a kind of ceramic coating according to claim 1, it is characterized in that: the ceramic packing includes
Following parts by weight component: 40 ~ 70 parts of boron carbide, 15 ~ 30 parts of tungsten carbide, 5 ~ 15 parts of chromium carbide, 5 ~ 15 parts of silicon carbide, aluminium oxide
5 ~ 15 parts and 5 ~ 10 parts of mangano-manganic oxide.
3. the preparation process of a kind of ceramic coating according to claim 1, it is characterized in that: the ceramic packing is warp
High temperature sintering is made.
4. the preparation process of a kind of ceramic coating according to claim 2, it is characterized in that: in the ceramic packing also
It include 5 ~ 7 parts of carbon fibers.
5. the preparation process of a kind of ceramic coating according to claim 1, it is characterized in that: the water-insoluble silicon oxygen
Alkane selects dimethicone or 1,3,5,7- tetramethyl-ring tetrasiloxane.
6. the preparation process of a kind of ceramic coating according to claim 1, it is characterized in that: the alkoxide selects isopropyl
One of aluminium alcoholates, tert-butyl alcohol aluminium, titanium ethanolate, normal propyl alcohol titanium, n-butyl titanium or tert-butyl alcohol titanium.
7. the preparation process of a kind of ceramic coating according to claim 1, it is characterized in that: the organic solvent selects
Methanol or ethyl alcohol.
8. the preparation process of a kind of ceramic coating according to claim 1, it is characterized in that: the acidity salt catalyst
Select one of phosphotungstic acid sylvite, heteropoly acid sylvite or potassium tantalate-niobate.
9. the preparation process of a kind of ceramic coating according to claim 1, it is characterized in that: the polymeric oxidizer is high
Hydroxy acrylic acid polyol resin.
10. the preparation process of a kind of ceramic coating according to claim 1, it is characterized in that: the heating method selects
It selects at 350 ~ 450 DEG C and to be sintered at vacuum drying or 350 ~ 450 DEG C.
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| CN201711312151.0A CN109913132A (en) | 2017-12-12 | 2017-12-12 | A kind of preparation process of ceramic coating |
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| CN201711312151.0A CN109913132A (en) | 2017-12-12 | 2017-12-12 | A kind of preparation process of ceramic coating |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657503A (en) * | 2005-02-22 | 2005-08-24 | 北京科技大学 | Process for preparing nanometer and nanometer composite ceramic coating by thermofilter press method |
| CN101220217A (en) * | 2007-01-09 | 2008-07-16 | 上海金力泰化工股份有限公司 | Paint for building curtain wall |
| CN103013253A (en) * | 2012-11-28 | 2013-04-03 | 大连裕祥科技集团有限公司 | Nano aircraft coating and preparation method and using method thereof |
-
2017
- 2017-12-12 CN CN201711312151.0A patent/CN109913132A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657503A (en) * | 2005-02-22 | 2005-08-24 | 北京科技大学 | Process for preparing nanometer and nanometer composite ceramic coating by thermofilter press method |
| CN101220217A (en) * | 2007-01-09 | 2008-07-16 | 上海金力泰化工股份有限公司 | Paint for building curtain wall |
| CN103013253A (en) * | 2012-11-28 | 2013-04-03 | 大连裕祥科技集团有限公司 | Nano aircraft coating and preparation method and using method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨祥: "《合成化学简明教程》", 31 March 2016, 中国地质大学出版社 * |
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Application publication date: 20190621 |