CN109536014A - A kind of preparation method of superhard flexible coating - Google Patents
A kind of preparation method of superhard flexible coating Download PDFInfo
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- CN109536014A CN109536014A CN201710866200.9A CN201710866200A CN109536014A CN 109536014 A CN109536014 A CN 109536014A CN 201710866200 A CN201710866200 A CN 201710866200A CN 109536014 A CN109536014 A CN 109536014A
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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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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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- 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
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Abstract
The application provides a kind of preparation method of superhard flexible coating, comprising steps of S1, titanate esters or Aluminate and the water catalyzing hydrolysis under heating, acid condition, form titanium colloidal sol or Aluminum sol；S2, TMOES and fluorinated hydrophobic substance distinguish catalyzing hydrolysis, the hydrolysate CEOS of TMOES is obtained into the high polymer of CEOS under the catalytic action of cation light initiator, the hydrolysate of fluorinated hydrophobic substance, the high polymer of CEOS, titanium colloidal sol or Aluminum sol are mixed, coating liquid is obtained.Superhard flexible coating of the invention, main film forming matter is formed by two kinds of polymerizable silanes, it is subject to inorganic reinforcer-titanium colloidal sol again and improves its hardness, raw material is cheap, and experimental procedure is simple, solvent is common acid and water, without adding other organic substances, preparation process is simple, economical, environmentally friendly, and coating obtained has good adhesive force, toughness, toughness and hardness.It with protective effect, can be widely applied and electronic equipment, optical device, the every field such as construction material.
Description
Technical field
The present invention relates to coatings industry fields, more specifically, it is related to a kind of superhard flexible coating, mainly for the protection of,
It can be applied in electronic equipment, optical instrument, the vehicles and daily necessity.
Background technique
With the fast development of modern industry business, people are also higher and higher for the cry of toughness equipment.This project
The superhard substrate nano paint of toughness device is widely used mainly for the protection of acting not only as electronic curtain, optics toughness device
The protection of part can be also used for the protection of keyboard, desk bicycle.This coating of pre-estimation has several hundred hundred million market, there is market
Just there is opportunity.
The teacher Lu Jingjuan seminar at Zhejiang University's nanometer science and technology center is to silicon-aluminum sol modified methyl silicon resin
The research of damage resistant film, using the hydrolytie polycondensation product of methyltrimethoxysilane (MTMS) as main film forming matter, just
Silester (TEOS) hydrolytie polycondensation product silica solution and the boehmite glue of aluminium isopropoxide preparation are as inorganic reinforcer, by altogether
Polycondensation reaction prepares Alusil modified methyl silicon resin wear-resistance thin film in polycarbonate (PE) plate surface, however although raw material is honest and clean
Valence, the toughness and hardness of such product are not ideal, and application range is limited；Like in clean generation environmental protection Co., Ltd to " high stable
In the research of property Study of Silicasol-acrylic Emulsion Compound Coating and its preparation process ", feed to form the double-deck packet using two step of silica solution
The microstructure covered, so with other raw material Proper Matchs, solve silica solution and acrylic emulsions composite coating substantially
Stability problem.The storage stability of coating is elongated, and nothing returns thick, flocculation phenomenon, while solving process water in slurry preparation
Insufficient practical problem.Technique mainly solves the problems, such as coating stability, other performances are to be related to, and its raw materials used kind
Class is more, complex process.Recently, Dongchan Jang teaches seminar and has delivered them on AM for the newest of superhard coating
Research achievement changes the method that the research uses inorganic organic phase to combine, and on a molecular scale, enhances phase interface and the inside molecule
Chemical bond strength.Use the method that can be prepared on a large scale of simple low energy consumption.But its part material is not easy to obtain, post-processing
Preparation process is complicated, is not suitable for large-scale promotion application.
Although being broken through, there is also defects, because every investigative technique can improve certain several one-side performance,
Using being restricted.Different application fields needs different performances, this just needs coating to possess numerous excellent performances.Bao Zhe
Toughness device material is also doing in the company of Nan professor, mainly improves electric conductivity, and higher cost.Though it is all toughness device, this
Patent is different from its emphasis.
Summary of the invention
For the great demand of above-mentioned existing problem and market, the present invention provides a kind of superhard flexible coating of modification,
The raw material that the coating uses is cheap and easy to get, and experimental technique is simple.
The scheme that the present invention solves above-mentioned technical problem is to provide a kind of preparation method of superhard flexible coating, including such as
Lower step:
The preparation of S1, colloidal sol: titanate esters or Aluminate and the water catalyzing hydrolysis under heating, acid condition form titanium colloidal sol
Or Aluminum sol；
The preparation of S2, coating liquid: TMOES and fluorinated hydrophobic substance distinguish catalyzing hydrolysis, by the hydrolysate of TMOES
CEOS obtains the high polymer of CEOS under the catalytic action of cation light initiator, by the hydrolysate of fluorinated hydrophobic substance,
High polymer, titanium colloidal sol or the Aluminum sol mixing of CEOS, obtains coating liquid.
In the preparation method of superhard flexible coating provided by the invention, titanate esters or Aluminate, TMOES, fluorinated are dredged
The molar ratio of water substance is 2:3:1-3:5:1.
In the preparation method of superhard flexible coating provided by the invention, in the step S1, the titanate esters include titanium
Isopropyl propionate, isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters, three oleic acid acyloxy titanate esters of isopropyl, isopropyl three
At least one of (dioctylphyrophosphoric acid acyloxy) titanate esters；The Aluminate includes aluminium isopropoxide, praseodynium
At least one of aluminium, two stearic acid acyloxy Aluminate of isopropoxy.
In the preparation method of superhard flexible coating provided by the invention, in the step S2, the fluorinated hydrophobe
Matter includes perfluoro capryl triethoxysilane, 1H, 1H, 2H, 2H- perfluoro decyl trimethoxy silane, 17 fluorine decyl trimethoxies
At least one of base silane.
In the preparation method of superhard flexible coating provided by the invention, in the step S2, the hydrolysising condition of TMOES
Are as follows: temperature is 70-90 degree, reacts 3-5 hours, obtains the hydrolysate CEOS of TMOES.
In the preparation method of superhard flexible coating provided by the invention, cation light initiator and solvent is added in CEOS
Mixture in, reacted 3-4 hours under magnetic agitation, obtain the high polymer of intermediate material CEOS.
In the preparation method of superhard flexible coating provided by the invention, the solvent includes methyl ethyl ketone, acetone, fourth
At least one of ketone, methyl propyl ketone；The cation light initiator is η 6- isopropylbenzene cyclopentadienyl iron hexafluorophosphate；It is described to contain
Fluorine class hydrophobic substance is perfluoro capryl triethoxysilane, the hydrolysising condition of perfluoro capryl triethoxysilane are as follows: in acid item
Under part, temperature be 55-65 degree, hydrolyze 3-4 hours.
In the preparation method of superhard flexible coating provided by the invention, in the step S2, also add in the coating liquid
The light micro-sphere structure of Ghana's meter level.
Further include following steps after the step S2 in the preparation method of superhard flexible coating provided by the invention:
S3, film: the coating liquid, which is coated on, to be needed on substrate to be protected, dry, forms coating.
In the preparation method of superhard flexible coating provided by the invention, the step S3 specifically comprises the following steps:
A. alcohol wipe will be used on the substrate of capped protection, immerses in the coating liquid after its drying, then delays
It is slow to propose, pull rate 6cm/min；
B. it is put into baking oven and is heat-treated, be slowly warming up to 120 DEG C, kept for 2 hours.
The invention has the following beneficial effects: superhard flexible coating of the invention is mainly used as protective coating, application
Sol-gel method, simple process, thus product price are ideal, can be accepted by the public, and are suitble to large-scale use.
Detailed description of the invention
Fig. 1 is the hydrolysis reaction of isopropyl titanate；
Fig. 2 is the hydrolysis reaction of TMOES；
Fig. 3 is the polymerization process of CEOS；
Fig. 4 is the hydrolysis reaction of PFOTS；
Fig. 5 is the structural schematic diagram for being added to the superhard flexible coating of light micro-sphere structure.
Specific embodiment
The content of present invention is illustrated below in conjunction with embodiment.
The present invention provides a kind of preparation method of superhard flexible coating, includes the following steps:
The preparation of S1, colloidal sol: titanate esters or Aluminate and the water catalyzing hydrolysis under heating, acid condition form titanium colloidal sol
Or Aluminum sol；
The preparation of S2, coating liquid: TMOES and fluorinated hydrophobic substance distinguish catalyzing hydrolysis, by the hydrolysate of TMOES
CEOS obtains the high polymer of CEOS under the catalytic action of cation light initiator, by the hydrolysate of fluorinated hydrophobic substance,
High polymer, titanium colloidal sol or the Aluminum sol mixing of CEOS, obtains coating liquid.Wherein, titanate esters or Aluminate, TMOES, fluorinated
The molar ratio of hydrophobic substance is 2:3:1-3:5:1.
It should be strongly noted that titanium colloidal sol is made of isopropyl titanate, it is also possible to (the dioctyl phosphoric acid acyl of isopropyl three
Oxygroup) metatitanic acids such as titanate esters, three oleic acid acyloxy titanate esters of isopropyl, isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters
Esters.Aluminum sol substitution can be used in titanium colloidal sol, similar with titanium colloidal sol, and Aluminum sol is that left and right is also to improve coating as auxiliary agent
Hardness, Aluminum sol is using Aluminates such as aluminium isopropoxide, praseodynium aluminium, two stearic acid acyloxy Aluminates of isopropoxy
Class production.Hydrophobic substance PFOTS used in the present invention, can use 1H, 1H, 2H, 2H- perfluoro decyl trimethoxy silane,
The replacement of the fluorinateds hydrophobic substances such as 17 fluorine ruthenium trimethoxysilanes.
It is pungent with main film forming matter 2- (3,4- epoxycyclohexyl) ethyl trimethoxy silane (TMOES), perfluor below
For ethyl triethoxy silicane alkane (PFOTS) mixed with titanium colloidal sol, the preparation method of superhard flexible coating is introduced:
One, the preparation of titanium colloidal sol: nitre is added in 75 DEG C of return stirring 40min in isopropyl titanate and water (volume ratio 1:100)
Acid or sulfuric acid adjust PH to 3.0-4.0, and it is translucent to solution to continue return stirring.It is cooling stand-by.The hydrolysis of isopropyl titanate is anti-
Answer process as shown in Figure 1.
Two, the preparation of coating liquid: 2- (3,4- epoxycyclohexyl) ethyl trimethoxy silane (TMOES), perfluoro capryl three
Ethoxysilane (PFOTS) is that precursor is hydrolyzed using nitric acid or sulfuric acid as catalyst respectively.The hydrolysis mistake of isopropyl titanate
Journey is as shown in Fig. 2, the ethylene oxide polymer (CEOS) that TMOES is hydrolyzed, CEOS shine in cation light initiator, ultraviolet lamp
Penetrate the lower coating resin further polymerizeing, the polymerization process of CEOS as shown in figure 3, PFOTS hydrolysis reaction such as Fig. 4
It is shown.Wherein the material molar ratio 3:1 of TMOES and PFOTS, the ratio can also increase to 5:1, between the two ratios
Satisfactory alkane colloidal sol can be formed.It is again 2:3-3:5 mixing with the molar ratio of isopropyl titanate and TMOES, finally exists again
Micro-sphere structure is added in mixed liquor.It is mixed 1 hour.Film after ageing 1-2 days.
Three, it applies membrane process: using alcohol wipe base plate, silica gel solution obtained above is immersed into base class, is impregnated
10min, with method of pulling up film, pull rate 6cm/min.Base plate after film, which is put in baking oven, to be heat-treated, temperature
Degree is 80 degrees Celsius.
Hardness in the present embodiment using titanium colloidal sol as auxiliary agent raising coating, a kind of toughness material TMOES are mainly improved
Its toughness, (being characterized in that between not only body silicon for TMOES is cross-linked with each other, also cross-linking between organo-functional group, significantly
Increase the degree of cross linking and toughness).PFOTS has preferable hydrophobicity because containing more fluorine atom in functional group, because of it
Functional group is long-chain, so increase its toughness again, while the also comprehensive corrosion resistance for having improved material, hydrophobicity etc. other
The performance of aspect.
Wherein the general formula of final superhard flexible coating is [R4Si4O6] n (Ti2O3) n, wherein the preferred 2- of R (3,4- rings
Oxygen cyclohexyl) ethyl and perfluoro capryl；
Organosilicon easily hydrolyzes in aqueous solution, generates the hydroxyl hair in silanol, with silica solution around silicon dioxide granule
Raw reaction, forms the polymer for having organo-functional group.Silane hydrolyzate speed is related with pH value, and applicant of the present invention passes through reality
It tests and is determined as 3.0-4.0.
The hydrolysate CEOS self-polymerization of TMOES, then forms preliminary resin, wherein not only have the coupling of Si-O-Si,
There are also the couplings between functional group.It is that two kinds of silica solution first distinguish self-polymerization in the present invention, then makes its crosslinking poly- in mixing
It closes, achievees the purpose that the character for improving product, increase hydrophobicity on the basis of so that it is possessed hardness and toughness.Pass through the sieve of experiment
Choosing, selecting functional group is 2- (3,4- epoxycyclohexyl) ethyl and perfluoro capryl.
In order to improve its light extraction yield, nanoscale light micro-sphere structure is added in coating liquid of the present invention, microballoon has fine
Light aggregation, the light transmission rate of film can be made to improve, superhard flexible coating structure such as Fig. 5 obtained.
Superhard flexible coating of the present invention is by main film forming matter 2- (3,4- epoxycyclohexyl) ethyl trimethoxy
Base silane (TMOES), perfluoro capryl triethoxysilane (PFOTS) are polymerized.It is subject to inorganic reinforcer-titanium colloidal sol again to improve
Its hardness.Raw material is cheap, and experimental procedure is simple, and solvent is common acid and water, without adding other organic substances, preparation process
Simply, economic, environmental protection, coating obtained have good adhesive force, toughness, toughness and hardness.With protective effect, can answer extensively
With with electronic equipment, optical device, the every field such as construction material.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Embodiment 1
Magneton, 5ml isopropyl titanate and 250ml water are added in No.1 round-bottomed flask, adjusts PH to 3.0- with nitric acid
4.0, magnetic agitation 3 hours at being 60 DEG C in temperature, titanium colloidal sol is made.73.92gTMOES is added in No. two round-bottomed flasks, goes
Ionized water 8.10g is stirred energetically at being 80 DEG C in temperature and is obtained within 4 hours CEOS. CEOS, methyl ethyl ketone and cationic photopolymerization is taken to draw
It sends out agent and another container bottle is added, be 50:25:1 addition by three's mass ratio, mixture reacts 2 hours, and preliminary silica solution is made.
PFOTS5.82g, water 18g are added in No. three round-bottomed flasks, stirs 4h energetically at 60 DEG C with nitre acid for adjusting pH to 4.5-5.5,
It is added after cooling in above-mentioned obtained silica gel, adds the titanium colloidal sol of 5g micro-sphere structure and head pin.It is subsequently placed in 80 DEG C
Drying oven 1h is to remove solvent, then irradiates dry finished product in the UV lamp.
Alcohol wipe will be used on the substrate of capped protection, is immersed in superhard flexible coating colloidal sol after its drying, so
It slowly proposes afterwards, pull rate 6cm/min dries and removes solvent and water, is put into baking oven and is heat-treated, is slowly warming up to 90
DEG C, it keeps solidifying for 2 hours.
Embodiment 2
73.92gTMOES, deionized water 8.10g are added in No.1 round-bottomed flask, stirs 4 energetically at being 80 DEG C in temperature
Hour obtains CEOS. and takes CEOS, methyl ethyl ketone and cation light initiator that another container bottle is added, and is by three's mass ratio
50:25:1 addition, mixture react 2 hours, and preliminary silica solution is made.PFOTS5.82g, water is added in No. two round-bottomed flasks
18g stirs 4h with nitre acid for adjusting pH to 4.5-5.5 energetically at 60 DEG C, is added in above-mentioned obtained silica gel after cooling, then plus
Enter 5g micro-sphere structure.80 DEG C of drying oven 1h is subsequently placed in remove solvent, then irradiates dry finished product in the UV lamp.
Embodiment 3
Magneton, 5ml isopropyl titanate and 250ml water are added in No.1 round-bottomed flask, with nitre acid for adjusting pH to 3.0-
4.0, magnetic agitation 3 hours at being 60 DEG C in temperature, titanium colloidal sol is made.73.92gTMOES is added in No. two round-bottomed flasks, goes
Ionized water 8.10g is stirred energetically at being 80 DEG C in temperature and is obtained within 4 hours CEOS. CEOS, methyl ethyl ketone and cationic photopolymerization is taken to draw
It sends out agent and another container bottle is added, be 50:25:1 addition by three's mass ratio, mixture reacts 2 hours, and preliminary silica solution is made.
PFOTS5.82g, water 18g are added in No. three round-bottomed flasks, stirs 4h energetically at 60 DEG C with nitre acid for adjusting pH to 4.5-5.5,
It is added after cooling in above-mentioned obtained silica gel.80 DEG C of drying oven 1h is subsequently placed in remove solvent, then in the UV lamp according to
Blackberry lily is dry.
Experimental result
Alcohol wipe will be used on the substrate of the capped protection at 3 pieces, immerses above three embodiments respectively after its drying
In three kinds of superhard flexible coating colloidal sols in, then slowly propose, pull rate 6cm/min dries and removes solvent and water, be put into
It is heat-treated in baking oven, is slowly warming up to 90 DEG C, keep solidifying for 2 hours.Then a series of performance characterization, characterization knot are carried out
Fruit see the table below:
The field effect behavior of 1 organic field effect tube of table
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Film thickness | 3um | 2.6um | 2.5um |
| Hardness① | 3H | 2H | 3H |
| Light extraction yield | 20% | 18% | 13% |
| Corrosion resistance② | 25 days | 20 days | 23 days |
| Resistance to soiling③ | 3 grades | 3 grades | 3 grades |
Note: the measurement of hardness is 1. carried out with pencil hardness test.
2. with the corrosion resistance of soda acid testing coating: after certain density soda acid is added dropwise, occurring first corruption at room temperature
Time used in pitting.
3. resistance to soiling is tested: coating resistance to soiling is divided into 5 grades, and 0 grade represents no effect；1 representative has certain effect, but alcohol
Still there is sharp trace after wiping；2 represent alcohol wipe after have shallower trace；3 represent to rinse after clear water and have very shallow trace, but alcohol
Without trace after wiping；4 represent after clear water rinses without trace.
Above embodiments further illustrate the contents of the present invention, but should not be construed as limiting the invention.Without departing substantially from
In the case where spirit of that invention and essence, to modification made by the method for the present invention, step or condition and replaces, belong to the present invention
Range.Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Claims (10)
1. a kind of preparation method of superhard flexible coating, which comprises the steps of:
The preparation of S1, colloidal sol: titanate esters or Aluminate and the water catalyzing hydrolysis under heating, acid condition, formed titanium colloidal sol or
Aluminum sol；
The preparation of S2, coating liquid: TMOES and fluorinated hydrophobic substance distinguish catalyzing hydrolysis, and the hydrolysate CEOS of TMOES is existed
The high polymer that CEOS is obtained under the catalytic action of cation light initiator, by the hydrolysate of fluorinated hydrophobic substance, CEOS
High polymer, titanium colloidal sol or Aluminum sol mixing, obtain coating liquid.
2. the preparation method of superhard flexible coating according to claim 1, which is characterized in that titanate esters or Aluminate,
TMOES, fluorinated hydrophobic substance molar ratio be 2:3:1-3:5:1.
3. the preparation method of superhard flexible coating according to claim 1, which is characterized in that described in the step S1
Titanate esters include isopropyl titanate, isopropyl three (dioctyl phosphoric acid acyloxy) titanate esters, three oleic acid acyloxy metatitanic acid of isopropyl
At least one of ester, isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters；The Aluminate include aluminium isopropoxide,
At least one of praseodynium aluminium, two stearic acid acyloxy Aluminate of isopropoxy.
4. the preparation method of superhard flexible coating according to claim 1, which is characterized in that described in the step S2
Fluorinated hydrophobic substance includes perfluoro capryl triethoxysilane, 1H, 1H, 2H, 2H- perfluoro decyl trimethoxy silane, 17
At least one of fluorine ruthenium trimethoxysilane.
5. the preparation method of superhard flexible coating according to claim 1, which is characterized in that in the step S2, TMOES
Hydrolysising condition are as follows: temperature be 70-90 degree, react 3-5 hours, obtain the hydrolysate CEOS of TMOES.
6. the preparation method of superhard flexible coating according to claim 5, which is characterized in that cationic photopolymerization is added in CEOS
In the mixture of initiator and solvent, is reacted 3-4 hours under magnetic agitation, obtain the high polymer of intermediate material CEOS.
7. the preparation method of superhard flexible coating according to claim 6, which is characterized in that the solvent includes methyl second
At least one of base ketone, acetone, butanone, methyl propyl ketone；The cation light initiator is η 6- isopropylbenzene cyclopentadienyl iron hexafluoro phosphorus
Hydrochlorate；The fluorinated hydrophobic substance is perfluoro capryl triethoxysilane, the hydrolysising condition of perfluoro capryl triethoxysilane
Are as follows: in acid condition, temperature be 55-65 degree, hydrolyze 3-4 hours.
8. the preparation method of superhard flexible coating according to claim 1, which is characterized in that described in the step S2
Nanoscale light micro-sphere structure is also added in coating liquid.
9. the preparation method of superhard flexible coating according to claim 1, which is characterized in that also wrapped after the step S2
Include following steps:
S3, film: the coating liquid, which is coated on, to be needed on substrate to be protected, dry, forms coating.
10. the preparation method of superhard flexible coating according to claim 1, which is characterized in that the step S3 is specifically wrapped
Include following steps:
A. alcohol wipe will be used on the substrate of capped protection, immerses in the coating liquid after its drying, then slowly mentions
Out, pull rate 6cm/min；
B. it is put into baking oven and is heat-treated, be slowly warming up to 120 DEG C, kept for 2 hours.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111286268A (en) * | 2020-03-26 | 2020-06-16 | 郭芳敏 | Toughening and hardening coating composition, preparation method and plastic treatment method |
| CN113512196A (en) * | 2021-07-19 | 2021-10-19 | 中交上海三航科学研究院有限公司 | Alcohol solution of alkyl silanol and preparation method |
| CN115386076A (en) * | 2021-05-24 | 2022-11-25 | 华润化学材料科技股份有限公司 | Composite catalyst and preparation method and application thereof |
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