CN108047859A - A kind of preparation method of erosion shield and its application in cable-stayed bridge metal component - Google Patents
A kind of preparation method of erosion shield and its application in cable-stayed bridge metal component Download PDFInfo
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- CN108047859A CN108047859A CN201711398411.0A CN201711398411A CN108047859A CN 108047859 A CN108047859 A CN 108047859A CN 201711398411 A CN201711398411 A CN 201711398411A CN 108047859 A CN108047859 A CN 108047859A
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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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of preparation method of erosion shield, drip irrigation device includes following steps：S1：Absolute ethyl alcohol is poured into conical flask, and is added in tetraethoxysilance and stirred evenly；S2：The ammonium hydroxide of 0.05 0.1 times of tetraethoxysilance quality is measured, is stirred always；S3：After stirring, heat drying obtains Nano-meter SiO_22Change particle；S4：Modification；S5：Container is sealed, 48h is kept the temperature in drying box；S6：It centrifuges and obtains SiO after rinsing repeatedly2Then it is ground；S7：Configuration quality sprays suspension；S8：It is sprayed；S9：After spraying, natural cooling is taken out after dry 4h, has reached matrix of combining closely, while can be good at playing the buffer action to moisture content, reduce the corrosion condition that matrix surface occurs.
Description
Technical field
The present invention relates to metal component technical field, the preparation method of more particularly to a kind of erosion shield and its in oblique pull
The application of bridge metal component.
Background technology
Cable-stayed bridge is also known as cable-stayed bridge, be byGirderThe one kind being directly pulled in many drag-lines on bridge towerBridge, it is by pressure-bearing
Tower, tension rope and hold one kind that curved beam body combinesStructural system.It is considered as the multispan that drag-line replaces buttress
Elastic support continuous beam.It can reduce moment of flexure in beam body, reduce building height, alleviate construction weight, save material.Tiltedly
Draw bridge mainly bySarasota, girder,Suspension cableComposition.
Steel construction piece has largely been used in cable-stayed bridge, has played the role of support, fixation and connection to cable-stayed bridge, but steel
The use of structure is susceptible to corrosion phenomenon, especially in the river that bridge is related to, river, lake, Haiti area, and selects corrosion resistant material, example
Weathering steel, stainless steel are such as selected, but price is prohibitively expensive, therefore exploitation is still for the process for treating surface of steel construction piece
Developing way important in bridge structure at present.
The content of the invention
The object of the present invention is to provide a kind of preparation methods of erosion shield, play matrix of combining closely, while can be very
The good buffer action played to moisture content reduces the corrosion condition that matrix surface occurs.
The present invention above-mentioned technical purpose technical scheme is that：A kind of preparation of erosion shield
Method includes following steps：
S1：100 parts of absolute ethyl alcohol is measured to pour into conical flask, then measure again 30-50 parts of tetraethoxysilance pour into it is anhydrous
In ethanol solution, conical flask is put into magnetic stirring apparatus, 30min is stirred at 60 DEG C；
S2：The ammonium hydroxide of 0.05-0.1 times of tetraethoxysilance quality is measured, the speed of a drop per second is added dropwise in above-mentioned solution, will
Solution is stirred always during persistently keeping the temperature 2h at 60 DEG C；
S3：After stirring, after the gel solution of acquisition is placed 3h at room temperature, it is put into heat drying in drying box and for 24 hours, obtains
To Nano-meter SiO_22Change particle；
S4：It measures 100 parts of ethane solution to pour into container, weighs 10 parts of Nano-meter SiO_22Particle is added in bottle, then measures 3 parts and have
Machine modified solution is added thereto, and the decentralized processing of 15min is carried out to it using ultrasonic dispersing machine；
S5：Container is sealed, and is put into 40 DEG C of drying box and keeps the temperature 48h；
S6：Using supercentrifuge under conditions of 3000r/min by SiO2It separates, first with deionized water to SiO2It rinses
Twice, then with washes of absolute alcohol once, the SiO that will be rinsed well2It is put into drying basin, it is 1 time dry under conditions of 40 DEG C,
To SiO2It is ground, obtains hydrophobic SiO2Particle；
S7：Configuration quality is the THF solution of 1% PMMA, and lasting stirring is completely dissolved acquisition solution A until PMMA, equally matches somebody with somebody
Put the SiO that quality is 1%2THF solution, to solution stir 30min, then using ultrasonic dispersing machine handle 10min, obtain
Above two solution is mixed, 10min is ultrasonically treated after stirring by solution B；
S8：Suspension will be obtained to add in spray gun, gun slot is sprayed parallel to base material；
S9：After spraying, sample is put into drying box and takes out natural cooling after 100 DEG C of dry 4h.
Preferably, organically-modified solution includes one or more of FAS-17, KH-570 or G617.
Preferably, organically-modified solution includes FAS-17 and KH-570.
Preferably, the ratio of FAS-17 and KH-570 is 2 in organically-modified solution:1.
Preferably, in S8, gun head is sprayed apart from base material 15-20cm under 300KPa.
Preferably, in S7, the mixing quality ratio of solution A and solution B is 3:1.
Through the above technical solutions, being prepared into erosion shield after being modified to silica, add in erosion shield
PMMA is added closely to be combined for metal contact surface as skeleton, while hydrophobic silica is as hydrophobic index, energy
Enough buffer actions played well to moisture content reduce the corrosion condition that matrix surface occurs.
The purpose of the present invention two：A kind of erosion shield as claimed in any one of claims 1 to 6 is in cable-stayed bridge metal
The application of component.
The purpose of the present invention three：A kind of cable-stayed bridge steel structure girder, includes as claimed in any one of claims 1 to 6
Erosion shield and steel construction body, erosion shield are attached to steel construction body surface.
Preferably, the thickness of erosion shield is 0.2-0.6mm.
Explanation：
KH-570 γ-glycidyl ether oxygen propyl trimethoxy silicane
G617 perfluoro capryl triethoxysilanes
FAS-17 perfluor triethyl-silicanes.
In conclusion the invention has the advantages that：
1st, skeletal support plays the role of coating using PMMA, the selection of PMMA can allow coating better and be tied with metal surface
It closes, increases the service life of erosion shield, reduce the maintenance for erosion shield；
2 at the same modifying process in select a variety of modified organisms to carry out composite modified, composite modified SiO2With organic matter
Compatibility is modified better than individually, and with good dispersion stabilization；
3rd, for also there is good self-cleaning performance using the erosion shield prepared by invention, applied to energy in steel construction piece
Bridge is enough allowed to seem more new during being on active service；
4th, also there is antireflective using the surface after silica modified, it is straight in sunlight reduces bridge both sides metal component
It is reflected in the case of penetrating, increases the safety of driving personnel itself；
5th, another ice-covering-proof and erosion shield important result for many northern areas, is reduced on steel construction piece
Icing problem can increase the personal safety of pedestrian and service personnel.
Specific embodiment
The present invention is described in further detail below.
Embodiment 1, a kind of preparation method of erosion shield, include following steps：
S1：It measures 100 parts of absolute ethyl alcohol to pour into conical flask, then measures 50 parts of tetraethoxysilance again and pour into absolute ethyl alcohol
In solution, conical flask is put into magnetic stirring apparatus, 30min is stirred at 60 DEG C；
S2：The ammonium hydroxide of 0.1 times of tetraethoxysilance quality is measured, the speed of a drop per second is added dropwise in above-mentioned solution, by solution
It is stirred always during persistently keeping the temperature 2h at 60 DEG C；
S3：After stirring, after the gel solution of acquisition is placed 3h at room temperature, it is put into heat drying in drying box and for 24 hours, obtains
To Nano-meter SiO_22Change particle；
S4：It measures 100 parts of ethane solution to pour into container, weighs 10 parts of Nano-meter SiO_22Particle is added in bottle, then measures 3 parts and have
Machine modified solution is added thereto, and organically-modified solution includes FAS-17 and KH-570, and the mass ratio of FAS-17 and KH-570 are
2:1, the decentralized processing of 15min is carried out to it using ultrasonic dispersing machine；
S5：Container is sealed, and is put into 40 DEG C of drying box and keeps the temperature 48h；
S6：Using supercentrifuge under conditions of 3000r/min by SiO2It separates, first with deionized water to SiO2It rinses
Twice, then with washes of absolute alcohol once, the SiO that will be rinsed well2It is put into drying basin, it is 1 time dry under conditions of 40 DEG C,
To SiO2It is ground, obtains hydrophobic SiO2Particle；
S7：Configuration quality is the THF solution of 1% PMMA, and lasting stirring is completely dissolved acquisition solution A until PMMA, equally matches somebody with somebody
Put the SiO that quality is 1%2THF solution, to solution stir 30min, then using ultrasonic dispersing machine handle 10min, obtain
Solution B mixes above two solution, and the mixing quality of solution A and solution B ratio is 3 in mixed process:1, after stirring at ultrasound
Manage 10min；
S8：Suspension will be obtained to add in spray gun, gun slot is sprayed parallel to base material, gun head apart from base material 20cm,
It is sprayed under 300KPa；
S9：After spraying, sample is put into drying box and takes out natural cooling after 100 DEG C of dry 4h.
Embodiment 2, a kind of preparation method of erosion shield, include following steps：
S1：It measures 100 parts of absolute ethyl alcohol to pour into conical flask, then measures 30 parts of tetraethoxysilance again and pour into absolute ethyl alcohol
In solution, conical flask is put into magnetic stirring apparatus, 30min is stirred at 60 DEG C；
S2：The ammonium hydroxide of 0.05 times of tetraethoxysilance quality is measured, the speed of a drop per second is added dropwise in above-mentioned solution, by solution
It is stirred always during persistently keeping the temperature 2h at 60 DEG C；
S3：After stirring, after the gel solution of acquisition is placed 3h at room temperature, it is put into heat drying in drying box and for 24 hours, obtains
To Nano-meter SiO_22Change particle；
S4：It measures 100 parts of ethane solution to pour into container, weighs 10 parts of Nano-meter SiO_22Particle is added in bottle, then measures 3 parts and have
Machine modified solution is added thereto, and organically-modified solution includes FAS-17, and carrying out 15min to it using ultrasonic dispersing machine divides
Dissipate processing；
S5：Container is sealed, and is put into 40 DEG C of drying box and keeps the temperature 48h；
S6：Using supercentrifuge under conditions of 3000r/min by SiO2It separates, first with deionized water to SiO2It rinses
Twice, then with washes of absolute alcohol once, the SiO that will be rinsed well2It is put into drying basin, it is 1 time dry under conditions of 40 DEG C,
To SiO2It is ground, obtains hydrophobic SiO2Particle；
S7：Configuration quality is the THF solution of 1% PMMA, and lasting stirring is completely dissolved acquisition solution A until PMMA, equally matches somebody with somebody
Put the SiO that quality is 1%2THF solution, to solution stir 30min, then using ultrasonic dispersing machine handle 10min, obtain
Solution B mixes above two solution, and the mixing quality of solution A and solution B ratio is 3 in mixed process:1, after stirring at ultrasound
Manage 10min；
S8：Suspension will be obtained to add in spray gun, gun slot is sprayed, gun head is apart from base material 15- parallel to base material
20cm is sprayed under 300KPa；
S9：After spraying, sample is put into drying box and takes out natural cooling after 100 DEG C of dry 4h.
Embodiment 3, a kind of preparation method of erosion shield, include following steps：
S1：100 parts of absolute ethyl alcohol is measured to pour into conical flask, then measure again 30-50 parts of tetraethoxysilance pour into it is anhydrous
In ethanol solution, conical flask is put into magnetic stirring apparatus, 30min is stirred at 60 DEG C；
S2：The ammonium hydroxide of 0.075 times of tetraethoxysilance quality is measured, the speed of a drop per second is added dropwise in above-mentioned solution, will be molten
Liquid is stirred always during persistently keeping the temperature 2h at 60 DEG C；
S3：After stirring, after the gel solution of acquisition is placed 3h at room temperature, it is put into heat drying in drying box and for 24 hours, obtains
To Nano-meter SiO_22Change particle；
S4：It measures 100 parts of ethane solution to pour into container, weighs 10 parts of Nano-meter SiO_22Particle is added in bottle, then measures 3 parts and have
Machine modified solution is added thereto, and organically-modified solution includes FAS-17 and G617, and the mass ratio of FAS-17 and G617 are 2:1,
The decentralized processing of 15min is carried out to it using ultrasonic dispersing machine；
S5：Container is sealed, and is put into 40 DEG C of drying box and keeps the temperature 48h；
S6：Using supercentrifuge under conditions of 3000r/min by SiO2It separates, first with deionized water to SiO2It rinses
Twice, then with washes of absolute alcohol once, the SiO that will be rinsed well2It is put into drying basin, it is 1 time dry under conditions of 40 DEG C,
To SiO2It is ground, obtains hydrophobic SiO2Particle；
S7：Configuration quality is the THF solution of 1% PMMA, and lasting stirring is completely dissolved acquisition solution A until PMMA, equally matches somebody with somebody
Put the SiO that quality is 1%2THF solution, to solution stir 30min, then using ultrasonic dispersing machine handle 10min, obtain
Solution B mixes above two solution, and the mixing quality of solution A and solution B ratio is 3 in mixed process:1, after stirring at ultrasound
Manage 10min；
S8：Suspension will be obtained to add in spray gun, gun slot is sprayed, gun head is apart from base material parallel to base material
17.5cm is sprayed under 300KPa；
S9：After spraying, sample is put into drying box and takes out natural cooling after 100 DEG C of dry 4h.
Embodiment 4, a kind of cable-stayed bridge steel structure girder, include erosion shield and steel construction body, erosion shield
Steel construction body surface is attached to, the thickness of erosion shield is 0.6mm.
Contrast test
Comparative example 1, the steel structure girder for being used as cable-stayed bridge using traditional steel construction piece.
Frictional experiment：
Super-hydrophobic coat is rubbed on the sand paper of 400# after 100m, if keeps super-hydrophobic characteristic.
Paste experiment
After tape-stripping test is used to repeat 500 times, whether the contact angle and roll angle of super-hydrophobic coat have generation significantly to become
Change.
Table one：Erosion shield detects tables of data.
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | |
| Contact angle | 145.5° | 146.3° | 145.1° | 70.68 |
| Frictional experiment | Have | Have | Have | Do not have |
| Paste experiment | It is unchanged | It is unchanged | It is unchanged | It is unchanged |
By upper table it can be found that after modified erosion shield is coated on metal, contact angle and common steel
Component varies widely, and for the scope of contact angle between 145 ° -146 °, the contact angle of this angle can allow surface with good
Good hydrophobic performance, and hydrophobic performance is applied and then can be good at playing etch-proof effect on steel component；Pass through simultaneously
Frictional experiment and stickup experiment are it can be found that the erosion shield has good mechanical performance, and good mechanical performance is even more
An important factor for coating is applied on steel construction piece, only possesses good mechanical performance, can reduce steel construction piece dimension
The number of erosion shield is protected, this is even more important for the cable-stayed bridge of volume super large, and many steel constructions are dimensions using position
What the personnel of repairing were extremely difficult to, therefore good mechanical performance reduces the possibility of repair, reduces maintenance cost, adds bridge
Service life.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
It is all protected in the right of invention be subject to Patent Law.
Claims (9)
1. a kind of preparation method of erosion shield, it is characterised in that：Include following steps：
S1：100 parts of absolute ethyl alcohol is measured to pour into conical flask, then measure again 30-50 parts of tetraethoxysilance pour into it is anhydrous
In ethanol solution, conical flask is put into magnetic stirring apparatus, 30min is stirred at 60 DEG C；
S2：The ammonium hydroxide of 0.05-0.1 times of tetraethoxysilance quality is measured, the speed of a drop per second is added dropwise in above-mentioned solution, will
Solution is stirred always during persistently keeping the temperature 2h at 60 DEG C；
S3：After stirring, after the gel solution of acquisition is placed 3h at room temperature, it is put into heat drying in drying box and for 24 hours, obtains
To Nano-meter SiO_22Change particle；
S4：It measures 100 parts of ethane solution to pour into container, weighs 10 parts of Nano-meter SiO_22Particle is added in bottle, then measures 3 parts and have
Machine modified solution is added thereto, and the decentralized processing of 15min is carried out to it using ultrasonic dispersing machine；
S5：Container is sealed, and is put into 40 DEG C of drying box and keeps the temperature 48h；
S6：Using supercentrifuge under conditions of 3000r/min by SiO2It separates, first with deionized water to SiO2It rinses
Twice, then with washes of absolute alcohol once, the SiO that will be rinsed well2It is put into drying basin, it is 1 time dry under conditions of 40 DEG C,
To SiO2It is ground, obtains hydrophobic SiO2Particle；
S7：Configuration quality is the THF solution of 1% PMMA, and lasting stirring is completely dissolved acquisition solution A until PMMA, equally matches somebody with somebody
Put the SiO that quality is 1%2THF solution, to solution stir 30min, then using ultrasonic dispersing machine handle 10min, obtain
Above two solution is mixed, 10min is ultrasonically treated after stirring by solution B；
S8：Suspension will be obtained to add in spray gun, gun slot is sprayed parallel to base material；
S9：After spraying, sample is put into drying box and takes out natural cooling after 100 DEG C of dry 4h.
2. a kind of preparation method of erosion shield according to claim 1, it is characterised in that：
Organically-modified solution includes one or more of FAS-17, KH-570 or G617.
3. a kind of preparation method of erosion shield according to claim 2, it is characterised in that：Organically-modified solution includes
There are FAS-17 and KH-570.
4. a kind of preparation method of erosion shield according to claim 1, it is characterised in that：In organically-modified solution
The ratio of FAS-17 and KH-570 is 2:1.
5. a kind of preparation method of erosion shield according to claim 1, it is characterised in that：In S8, gun head away from
From base material 15-20cm, sprayed under 300KPa.
6. a kind of preparation method of erosion shield according to claim 1, it is characterised in that：In S7, solution A and solution
The mixing quality ratio of B is 3:1.
7. a kind of erosion shield as claimed in any one of claims 1 to 6 is in the application of cable-stayed bridge metal component.
8. a kind of cable-stayed bridge steel structure girder, it is characterised in that：Include anticorrosion as claimed in any one of claims 1 to 6
Coating and steel construction body, erosion shield are attached to steel construction body surface.
9. a kind of cable-stayed bridge steel structure girder according to claim 8, it is characterised in that：The thickness of erosion shield is
0.2-0.6mm。
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| CN111535075A (en) * | 2020-05-18 | 2020-08-14 | 杭州西红柿环保科技有限公司 | Full-degradable fluoride-free paper pulp molding seedling cup and preparation method thereof |
| CN111648160A (en) * | 2020-05-18 | 2020-09-11 | 杭州西红柿环保科技有限公司 | Environment-friendly fluorine-free cup and preparation method thereof |
| CN111925705A (en) * | 2020-07-21 | 2020-11-13 | 淮阴工学院 | Laser-modified organic glass-based protective coating on surface of magnesium alloy and preparation method thereof |
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| CN111925705A (en) * | 2020-07-21 | 2020-11-13 | 淮阴工学院 | Laser-modified organic glass-based protective coating on surface of magnesium alloy and preparation method thereof |
| CN111925705B (en) * | 2020-07-21 | 2022-02-11 | 淮阴工学院 | Laser-modified organic glass-based protective coating on surface of magnesium alloy and preparation method thereof |
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