CN104761995B - SiO2/ epoxy resin-matrix graded composite wear-resistant coating and preparation method thereof - Google Patents
SiO2/ epoxy resin-matrix graded composite wear-resistant coating and preparation method thereof Download PDFInfo
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- CN104761995B CN104761995B CN201510036343.8A CN201510036343A CN104761995B CN 104761995 B CN104761995 B CN 104761995B CN 201510036343 A CN201510036343 A CN 201510036343A CN 104761995 B CN104761995 B CN 104761995B
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/12—Applying particulate materials
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- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
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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
- 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
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Abstract
SiO2/ epoxy resin-matrix graded composite wear-resistant coating, including epoxy resin-base and SiO2Hardening constituent, wherein epoxy resin-base is bi-component epoxide-resin, SiO2Addition quality is epoxy resin-matrix weight 20%～the 45% of hardening constituent.The invention also discloses its preparation method: clean with acetone after matrix surface is carried out sandblasting roughening treatment；By deployed epoxy coating brushing matrix surface after the pre-treatment, then by SiO2Mixed powder sprays the epoxy coating surface in brushing；Last insulation 30～120min under the conditions of 25～70 DEG C, to obtain final product.SiO of the present invention2/ epoxy resin-matrix graded composite wear-resistant coating, exists by the inside SiO in surface2Granule is gradually increased and still for the granular gradient of pure epoxy resin at matrix and coating interface, overcomes the defect that existing coating is formed due to granule sedimentation；Composite anti-wear coating of the present invention has higher hardness and wearability；Its preparation technology is simple, low cost.
Description
Technical field
The invention belongs to technical field of composite preparation, be specifically related to a kind of SiO2/ epoxy resin-matrix graded composite is resistance to
Mill coating, the invention still further relates to the preparation method of this wear-resistant coating.
Background technology
Use micron order SiO2The SiO that ceramic powder filled is modified2/ epoxy composite material has good corrosion resistance, wear-resisting
A series of excellent properties such as property, insulating properties, heat conductivity are big, linear expansion coefficient is low, cure shrinkage is little, low production cost,
It is widely used at corrosion-proof wear-resistant material and Electronic Packaging field.
At present, in order to improve the wearability of corrosion-inhibiting coating, people also add solid packing in cold coating, on the one hand subtract
The consumption of few resin, reduces cost；On the other hand hardness and the wearability of coating are increased, but owing to the density of solid particle is more than
The density of resin, therefore arises that granule to be deposited in bottom coating and causes coating layering, and the resin content of upper part coating is high,
Being substantially free of solid packing, coating abrasion performance is poor, and bottom solids content is high, and resin content is few, causes the adhesion strength of coating
Reduce so that powder enhancement techniques is difficult in antiseptic wearable coat promote, and in order to solve this problem, someone uses filler table
Face modification and two kinds of approach of granule nanorize effectively reduce the sedimentation rate of filler particles in composite, but its technique is multiple
Miscellaneous, relatively costly, it is also difficult to be applied in industrialized production.
Stoke ' s is utilized to settle law, SiO2Granule sedimentation velocity in coating and granule and the density contrast of coating,
Square being directly proportional of grain diameter, is inversely proportional to dope viscosity.The particle sinking speed that filler granularity of the same race is the biggest is the fastest, and density is little
Sedimentation velocity little, therefore use different stage granule mixing can form granular gradient in the coating；Raising ring with temperature
Epoxy resins crosslinking curing speed is substantially accelerated, and viscosity significantly becomes big until losing flowability, and makes granule infall process terminate, therefore
The viscosity of epoxy coating can be controlled by controlling temperature, and then affect speed and the time that granule settles, control granule
The degree of depth of sedimentation, it is ensured that granule is distributed mainly on the middle and upper part of coating, is still pure epoxy resin coating at matrix and coating interface.
The final granule that obtains becomes the SiO of Gradient distribution2/ epoxy resin gradient wear-resistant coating.The coating using this technique to prepare overcomes
The granule occurred in blending method falls to the defect bottom coating, has more preferable bond strength, wearability and case hardness.
Summary of the invention
It is an object of the invention to provide a kind of SiO2/ epoxy resin-matrix graded composite wear-resistant coating, it has higher hard
Degree and anti-wear performance.
It is a further object to provide a kind of SiO2The preparation side of/epoxy resin-matrix graded composite wear-resistant coating
Method.
The technical solution adopted in the present invention is, SiO2/ epoxy resin-matrix graded composite wear-resistant coating, including epoxy resin
Matrix and SiO2Hardening constituent, wherein epoxy resin-base is bi-component epoxide-resin, SiO2The amount of hardening constituent is epoxy resin quality
20%～45%.
The feature of the present invention also resides in,
Bi-component epoxide-resin is made up of E44 epoxy resin and low molecular polyamides firming agent.
SiO2Hardening constituent is by mass percentage by following varigrained SiO2Composition: 5～10 μm: 35%～65%, 10～
20 μm: 20%～30%, 20～30 μm: 10%～20%, 30～40 μm: 5%～10%, 40～50 μm < 5%, above each grain
The mass percent sum of degree is 100%.
Another technical scheme of the present invention is, SiO2The preparation of/epoxy resin-matrix graded composite wear-resistant coating
Method, specifically sequentially includes the following steps:
Step 1, carries out SiO in proportion2Mixed powder
Weighing granularity the most respectively is 5～10 μm: 35%～65%, 10～20 μm: 20%～30%, 20～
30 μm: 10%～20%, 30～40 μm: 5%～10%, 40～50 μm < SiO of 5%2Powder is put into ball mill and is added ethanol and carry out
Ball milling, makes powder mix homogeneously, is then placed in drying baker being dried；
Step 2, epoxy coating is allocated
By E-44 epoxy resin with low molecular polyamides firming agent with mass ratio 1:1 mixing and stirring, obtain epoxy
Cold coating；
Step 3, carries out spraying pretreatment, brushwork epoxy resin coating
Clean with acetone after matrix surface is carried out sandblasting roughening treatment；Epoxy coating deployed for step 2 is coated with
Brush matrix surface after the pre-treatment, coating layer thickness controls in 100～200 μm；
Step 4, outer spray SiO2Mixed powder
By SiO2Mixed powder is sprayed in the epoxy coating surface of step 3 brushing, wherein SiO uniformly by electrostatic spraying2
Amount is epoxy coating quality 20%～45%；
Step 5, sedimentation solidification
The coating that preparation 5 obtains is incubated 30～120min under the conditions of 25～70 DEG C, i.e. obtains SiO2/ epoxy resin-matrix
Graded composite wear-resistant coating.
The feature of the present invention also resides in,
Be dried in step 1 is to be incubated 2～4 hours at temperature 110 DEG C～150 DEG C.
Sandblasting roughening treatment technological parameter in step 3: blasting pressure 0.4～0.6MPa, abrasive material 16～18 mesh corundum.
In step 4, electrostatic spraying uses electrostatic gun to carry out, and design parameter is: compressed air pressure 0.4～0.7MPa, quiet
Electrospray voltage 50～60V, spray tip is to workpiece distance 100～150mm.
The invention has the beneficial effects as follows, SiO of the present invention2/ epoxy resin-matrix graded composite wear-resistant coating is compared with the prior art
Relatively there is a following advantage:
(1) coating exists by the inside SiO in surface2Granule is gradually increased and is still pure epoxy resin at matrix and coating interface
Granular gradient, overcome existing coating due to granule and fall to bottom, surface strengthens, without granule, the defect that formed；
(2) SiO prepared2/ epoxy resin-matrix graded composite wear-resistant coating and substrate combinating strength are high, it is higher hard to have
Degree and wearability；
(3) preparation technology of coating is simple, favorable repeatability, low cost.
Accompanying drawing explanation
Fig. 1 is composite coating middle section distribution of particles prepared by distinct methods；
Wherein (a) existing blending method；(b) the inventive method；
Fig. 2 is SiO2The distinct methods of the 30% of amount epoxy resin quality prepares composite coating rushing under 90 ° of erosion angles
Erosion wear morphology.
Wherein (I) existing blending method；(II) the inventive method.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
SiO of the present invention2/ epoxy resin-matrix graded composite wear-resistant coating, including epoxy resin-base and SiO2Hardening constituent, its
Epoxy resin matrix is bi-component epoxide-resin, SiO2Hardening constituent addition quality is epoxy resin quality 20%～
45%.Wherein bi-component epoxide-resin is made up of E44 epoxy resin and low molecular polyamides firming agent.
SiO2Hardening constituent is by mass percentage by following varigrained SiO2Composition: 5～10 μm: 35%～65%, 10～
20 μm: 20%～30%, 20～30 μm: 10%～20%, 30～40 μm: 5%～10%, 40～50 μm < 5%, above each grain
The mass percent sum of degree is 100%.
Above-mentioned SiO2The preparation method of/epoxy resin-matrix graded composite wear-resistant coating, specifically sequentially includes the following steps:
Step 1, carries out SiO in proportion2Mixed powder
Weighing granularity the most respectively is 5～10 μm: 35%～65%, 10～20 μm: 20%～30%, 20～
30 μm: 10%～20%, 30～40 μm: 5%～10%, 40～50 μm < SiO of 5%2Powder is put into ball mill and is added ethanol and carry out
Ball milling, makes powder mix homogeneously, is then placed in drying baker being dried, and is incubated 2～4 hours at temperature 110 DEG C～150 DEG C；
Step 2, epoxy coating is allocated
By E-44 epoxy resin with low molecular polyamides firming agent with mass ratio 1:1 mixing and stirring；
Step 3, carries out spraying pretreatment, brushwork epoxy resin coating
Clean with acetone after matrix surface is carried out sandblasting roughening treatment；Sandblasting roughening treatment technological parameter: blasting pressure
0.4～0.6MPa, abrasive material 16～18 mesh corundum, by epoxy coating brushing deployed for step 2 base after the pre-treatment
Surface, coating layer thickness controls in 100～200 μm；
Step 4, outer spray SiO2Mixed powder
By SiO2Mixed powder is sprayed in the epoxy coating surface of step 3 brushing, wherein SiO uniformly by electrostatic spraying2
Amount is epoxy coating quality 20%～45%, design parameter is: compressed air pressure 0.4～0.7MPa, electrostatic
Being coated with voltage 50～60V, spray tip is to workpiece distance 100～150mm；
Step 5, sedimentation solidification
The coating that preparation 5 obtains is incubated 30～120min under the conditions of 25～70 DEG C, i.e. obtains SiO2/ epoxy resin-matrix
Graded composite wear-resistant coating.
SiO while solidification crosslinking2Granule settles under gravity, is formed by the inside SiO in surface2Granule gradually increases
It it is still the complex gradient coating of pure epoxy resin at big and matrix and coating interface.
Embodiment 1
Material is chosen as: bi-component epoxide-resin (E44 epoxy resin, low molecular polyamides firming agent), SiO2Powder
Spend and consist of 5～10 μm: 50%, 10～20 μm: 25%, 20～30 μm: 15%, 30～40 μm: 7%, 40～50 μm: 3%.
(1) mixed powder
Weigh the SiO of different size according to the above ratio2Powder is put into ball mill and is added ethanol and carry out ball milling, ethanol and powder
Mass ratio is 1:10, mixed powder 2 hours, makes powder mix homogeneously, then is put in drying baker by the above-mentioned powder mixed and do
Dry, temperature 110 DEG C is incubated 4 hours, removes moisture and increases the mobility of powder.
(2) spraying pretreatment
Matrix uses Q235 steel, and specimen size is 4mm × 4mm × 4mm, with 16 mesh emergy blasting treatments, after having processed
Clean with acetone again.
(3) epoxy coating allotment
By E-44 epoxy resin with low molecular polyamides firming agent with mass ratio 1:1 mixing and stirring.
(4) brushwork epoxy resin coating
Deployed epoxy coating is uniformly brushed Q235 steel matrix surface after the pre-treatment, and coating layer thickness controls
In 200 μm.
(5) SiO is sprayed outward2Powder
By SiO2Powder is sprayed at the epoxy coating surface of just brushing, wherein SiO uniformly by electrostatic gun2's
Amount is the 30% of epoxy coating quality.Electrostatic painting process parameter: compressed air pressure 0.7MPa, electrostatic spraying voltage
60V, spray tip is to workpiece distance 100mm.
(6) sedimentation solidification
The sample of preparation is incubated 120min, SiO under the conditions of 25 DEG C2After granule is settled down to certain depth, coating is the most solid
Change.
Embodiment 2
Material is chosen as: bi-component epoxide-resin (E44 epoxy resin, low molecular polyamides firming agent), SiO2Powder
Spend and consist of 5～10 μm: 65%, 10～20 μm: 20%, 20～30 μm: 10%, 30～40 μm: 5%.
(1) mixed powder
Weigh the SiO of different size according to the above ratio2Powder is put into ball mill and is added ethanol and carry out ball milling, ethanol and powder
Mass ratio is 1:10, mixed powder 2 hours, makes powder mix homogeneously, then is put in drying baker by the above-mentioned powder mixed and do
Dry, temperature 130 DEG C is incubated 3 hours, removes moisture and increases the mobility of powder.
(2) spraying pretreatment
Matrix uses Q235 steel, and specimen size is 4mm × 4mm × 4mm, with 17 mesh emergy blasting treatments, after having processed
Clean with acetone again.
(3) epoxy coating allotment
By E-44 epoxy resin with low molecular polyamides firming agent with mass ratio 1:1 mixing and stirring.
(4) brushwork epoxy resin coating
Deployed epoxy coating is uniformly brushed Q235 steel matrix surface after the pre-treatment, and coating layer thickness controls
In 100 μm.
(5) SiO is sprayed outward2Powder
By SiO2Powder is sprayed at the epoxy coating surface of just brushing, wherein SiO uniformly by electrostatic gun2's
Amount is the 20% of epoxy coating quality.Electrostatic painting process parameter: compressed air pressure 0.6MPa, electrostatic spraying voltage
50V, spray tip is to workpiece distance 120mm.
(6) sedimentation solidification
The sample of preparation is incubated 30min, SiO under the conditions of 70 DEG C2After granule is settled down to certain depth, coating is the most solid
Change.
Embodiment 3
Material is chosen as: bi-component epoxide-resin (E44 epoxy resin, low molecular polyamides firming agent), silicon powder grain
Spend and consist of 5～10 μm: 35%, 10～20 μm: 30%, 20～30 μm: 20%, 30～40 μm: 10%, 40～50 μm: 5%.
(1) mixed powder
Weigh the SiO of different size according to the above ratio2Powder is put into ball mill and is added ethanol and carry out ball milling, ethanol and powder
Mass ratio is 1:10, mixed powder 2 hours, makes powder mix homogeneously, then is put in drying baker by the above-mentioned powder mixed and do
Dry, temperature 150 DEG C is incubated 2 hours, removes moisture and increases the mobility of powder.
(2) spraying pretreatment
Matrix uses Q235 steel, and specimen size is 4mm × 4mm × 4mm, with 18 mesh emergy blasting treatments, after having processed
Clean with acetone again.
(3) epoxy coating allotment
By E-44 epoxy resin with low molecular polyamides firming agent with mass ratio 1:1 mixing and stirring.
(4) brushwork epoxy resin coating
Deployed epoxy coating is uniformly brushed Q235 steel matrix surface after the pre-treatment, and coating layer thickness controls
In 150 μm.
(5) SiO is sprayed outward2Powder
By SiO2Powder is sprayed at the epoxy coating surface of just brushing, wherein SiO uniformly by electrostatic gun2's
Amount is the 45% of epoxy coating quality.Electrostatic painting process parameter: compressed air pressure 0.4MPa, electrostatic spraying voltage
55V, spray tip is to workpiece distance 150mm.
(6) sedimentation solidification
The sample of preparation is incubated 90min, SiO under the conditions of 50 DEG C2After granule is settled down to certain depth, coating is the most solid
Change.
In order to investigate the SiO of the present invention2The SiO that/epoxy resin-matrix gradient wear-resistant coating is prepared with blended method2/ epoxy resin
The difference of base wear-resistant coating, the coating prepared the coating of the present invention obtained by embodiment 1 with blended method and pure epoxy resin are coated with
The layer bond strength of three kinds of coatings, hardness, wearability and corrosion resistance are tested and compare, and observe gradient coating
Section structure.
Use according to " GB/T 9286-1998, the cross cut test of paint and varnish paint film " and draw lattice laboratory method testing coating
Bond strength, finds that the bond strength of coating of the present invention is suitable with the bond strength of pure epoxy resin coating, is all 0 grade, is blended
It is 1 grade that method prepares anchoring strength of coating；Use Tukon 2100B type micro-/Vickers measure coating surface hardness, find
The hardness of coating of the present invention is 56HV, and it is 23HV that blending method prepares the hardness of coating, and pure epoxy resin coating hardness is 11HV, point
It it not 2.5 times and 5 times；The quartz sand that abrasive material selects particle diameter to be 20-30 mesh, erosion air pressure is chosen to be 0.4MPa, and erosion distance is
200mm, the angle of attack 90 °, the erosion time, 90s carried out erosion experiment, found that this coating abrasion rate is only 0.518 × 10-4g·cm-2·
s-1, composite coating wear rate prepared by blending method is 0.973 × 10-4g·cm-2·s-1, it is that coating abrasion prepared by blending method is fast
The 1/2 of rate；With JSM-6700F type scanning electron microscopic observation coating surface erosive wear pattern, find coating punching prepared by the present invention
Erosion surface particles strengthening effect is obvious.Using salt air corrosion 200h under the conditions of the NaCl solution 50 DEG C of 3.5%, result shows three kinds
Coating corrosion resistance can not have notable difference, for 0.07mm/a.Utilize optical microscope paired observation graded composite of the present invention
Composite coating section structure prepared by coating and blending method, as depicted in figs. 1 and 2, it appeared that its granularity through-thickness in
Continuous gradient changes, and is still pure epoxy resin, is tightly combined at coating and matrix faying face；And composite coating prepared by blending method
Middle SiO2Granule there occurs substantially sedimentation, strengthens and is concentrated mainly at coating and basal body interface mutually, to coating surface hardness and resistance to
The contribution of mill property is little, weakens the bond strength at coating and interface.
Claims (4)
1.SiO2The preparation method of/epoxy resin-matrix graded composite wear-resistant coating, it is characterised in that specifically sequentially include the following steps:
Step 1, carries out SiO in proportion2Mixed powder
Weighing granularity the most respectively is 5～10 μm: 35%～65%, 10～20 μm: 20%～30%, 20～30 μ
M:10%～20%, 30～40 μm: 5%～10%, 40～50 μm < SiO of 5%2Powder is put into ball mill and is added ethanol and carry out ball
Mill, makes powder mix homogeneously, is then placed in drying baker being dried；
Step 2, epoxy coating is allocated
By E-44 epoxy resin with low molecular polyamides firming agent with mass ratio 1:1 mixing and stirring；
Step 3, carries out spraying pretreatment, brushwork epoxy resin coating
Clean with acetone after matrix surface is carried out sandblasting roughening treatment；Epoxy coating brushing deployed for step 2 is existed
Pretreated matrix surface, coating layer thickness controls in 100～200 μm；
Step 4, outer spray SiO2Mixed powder
By SiO2Mixed powder is sprayed in the epoxy coating surface of step 3 brushing, wherein SiO uniformly by electrostatic spraying2Amount
For epoxy coating quality 20%～45%；
Step 5, sedimentation solidification
The coating that preparation 5 obtains is incubated 30～120min under the conditions of 25～70 DEG C, i.e. obtains SiO2/ epoxy resin-matrix gradient
Composite anti-wear coating.
SiO the most according to claim 12The preparation method of/epoxy resin-matrix graded composite wear-resistant coating, it is characterised in that
Be dried in step 1 is to be incubated 2～4 hours at temperature 110 DEG C～150 DEG C.
SiO the most according to claim 12The preparation method of/epoxy resin-matrix graded composite wear-resistant coating, it is characterised in that
Sandblasting roughening treatment technological parameter in step 3: blasting pressure 0.4～0.6MPa, abrasive material 16～18 mesh corundum.
SiO the most according to claim 12The preparation method of/epoxy resin-matrix graded composite wear-resistant coating, it is characterised in that
In step 4, electrostatic spraying uses electrostatic gun to carry out, and design parameter is: compressed air pressure 0.4～0.7MPa, electrostatic spraying electricity
Pressure 50～60V, spray tip is to workpiece distance 100～150mm.
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| CN201510036343.8A CN104761995B (en) | 2015-01-23 | 2015-01-23 | SiO2/ epoxy resin-matrix graded composite wear-resistant coating and preparation method thereof |
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| CN104761995B true CN104761995B (en) | 2016-11-30 |
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| CN116441142B (en) * | 2022-07-12 | 2023-11-21 | 西安交通大学 | Construction method of photocuring surface layer functionally gradient coating and solid insulating part thereof |
| CN116179050A (en) * | 2023-02-28 | 2023-05-30 | 东南大学 | Anti-skid repair coating for ship deck and application structure thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766020A (en) * | 2005-11-30 | 2006-05-03 | 深圳清华大学研究院 | Antibiotic mildew-resistant algae-resistant anticorrosion paint and its uses |
| CN101659828A (en) * | 2008-08-25 | 2010-03-03 | 武汉菲凡士建材有限公司 | High abrasion-resistant environmental protection floor coating and production and construction process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766020A (en) * | 2005-11-30 | 2006-05-03 | 深圳清华大学研究院 | Antibiotic mildew-resistant algae-resistant anticorrosion paint and its uses |
| CN101659828A (en) * | 2008-08-25 | 2010-03-03 | 武汉菲凡士建材有限公司 | High abrasion-resistant environmental protection floor coating and production and construction process thereof |
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