CN108948965A - General temperature curing epoxy low paint of large arch dam and preparation method thereof - Google Patents
General temperature curing epoxy low paint of large arch dam and preparation method thereof Download PDFInfo
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- CN108948965A CN108948965A CN201810839229.2A CN201810839229A CN108948965A CN 108948965 A CN108948965 A CN 108948965A CN 201810839229 A CN201810839229 A CN 201810839229A CN 108948965 A CN108948965 A CN 108948965A
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- arch dam
- large arch
- general temperature
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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
-
- 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
-
- 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
- C09D7/20—Diluents or solvents
-
- 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
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses general temperature curing epoxy low paints of a kind of large arch dam and preparation method thereof, the epoxy-based lacquers are made of base-material and curing agent, the sum of described base-material and curing agent weight percentage are 100%, and the base-material includes raw material below: liquid epoxies, modified resin, toughener, solvent, pigments and fillers and auxiliary agent.Preparation method: the following steps are included: liquid epoxies and modified resin, toughener, auxiliary agent, solvent are uniformly dispersed first, adding pigments and fillers, shears and disperses through high speed disperser, then carries out grinding distribution into base-material by closed horizontal sand mill；First base-material and curing agent are mixed and stirred for uniformly in proportion when construction, then working viscosity is adjusted to diluent, then carries out construction coating.The present invention it solve the problems, such as existing general heavy antisepsis epoxy coating be not able to satisfy VOC emission it is low, surface treatment require low, temperature lower than 5 DEG C solidification.
Description
Technical field
The present invention relates to coating class paint technology field, more particularly to a kind of general temperature curing epoxy low paint of large arch dam and
Preparation method.
Background technique
In recent decades, with the fast development of world economy, industrial machinery manufacture, port and pier, bridge, petroleum stone
Change, rail traffic, electric power, wind-powered electricity generation etc. basic industry all present rapid development.The installations and facilities of various basic industries are very
It is mostly all used in coastal port all over the world, is chronically exposed in the environment of marine corrosion, subjects the ocean of strong variations
The influence of weather, such as wind, rain, salt fog, atmosphere pollution is corroded or even the partial regions of certain installations and facilities is in splash zone.
This is just configured with very high requirement to the coating in these installations and facilities, not only to there is superpower weatherability, excellent anticorrosive
Ability, and want to resist winter severe cold, summer extremely hot adverse weather condition.Meanwhile many installations and facilities are large-scale bases
It builds, is all operation outdoors to carry out coating, heavy workload, process is tedious, and risk is again big and affected by environment
It is very big, however not excluded that low temperature and high relative humidity etc. is unable to the weather conditions of coating decoration, not easy.If being related to these installations and facilities
Subsequent maintenance, if carrying out coating maintenance with general coating, since surface treatment requires high, maintenance cost affirmative height, and
Possible new and old coating compatibility problem or capability and performance problem maintenance effect itself are also poor.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of general temperature curing epoxy low paint of large arch dam and its preparation sides
Method, it solves existing general heavy antisepsis epoxy coating and is not able to satisfy that VOC emission is low, surface treatment requires low, temperature lower than 5
DEG C solidification the problem of.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of general low temperature of large arch dam is provided
Cured epoxy paint, is made of base-material and curing agent, and the sum of the base-material and curing agent weight percentage are 100%, described
Curing agent weight percentage is 15 ~ 25%, and the base-material includes the raw material of following weight percent: liquid epoxies 20 ~
30%, modified resin 3 ~ 6%, toughener 3 ~ 6%, solvent 3 ~ 7%, pigments and fillers 40 ~ 55%, auxiliary agent 1 ~ 3%.
Liquid epoxies has 100% to contain admittedly, and viscosity is low, and molecular weight is small, and moisture dispersibility is good, liquid epoxies molecule
In containing a variety of functional groups such as ether, hydroxyl and tertiary amine groups, functional group contained by Unit Weight is more, and crosslink density is high, and paint film has excellent
Different adhesive force and antiseptic property.
In a preferred embodiment of the present invention, the modified resin is liquid hydrocarbon resin.
In a preferred embodiment of the present invention, the toughener is oh type non-activated thinner, this nonactive
Diluent is a kind of functional modification agent, and 100% contains admittedly, has the characteristics that long-chain low viscosity, on the basis of mentioning large arch dam instead
Viscosity can be reduced, and the permeability of coating can be improved, moreover it is possible to improve the flexibility and impact resistance of paint film.
In a preferred embodiment of the present invention, the solvent is ketone, alcohol or benzene, and not only dissolving power is excellent and group
At the evaporation rate for having gradient, workability is improved, flat and smooth paint film is formed.
In a preferred embodiment of the present invention, the pigments and fillers are the mixture that pigment and filler form, and pigment is
Zinc yellow, phosphate or chromate, filler are zinc oxide, calcium oxide, talcum powder, feldspar powder or silica flour.
In a preferred embodiment of the present invention, the auxiliary agent is thixotropic agent, dispersing agent, moistened surface bleeding agent and attached
Put forth effort agent, the weight percentage of the adjuvant component is thixotropic agent 50 ~ 70%, dispersing agent 10 ~ 20%, moistened surface bleeding agent
10 ~ 20%, adhesive force agent 10 ~ 30%.
In a preferred embodiment of the present invention, the curing agent is cashew nut shell oil pnenolic aldehyde amine hardener, and and base-material
In liquid epoxies carry out addition reaction, other than remaining the excellent performance of cashew nut shell oil pnenolic aldehyde amine hardener, also into
One step improves the compatibility of cashew nut shell oil pnenolic aldehyde amine hardener and liquid epoxies, reduces the quantity of free ammonia, improves
Pasta phenomenon.
In a preferred embodiment of the present invention, the thixotropic agent is organobentonite, fumed silica or polyamides
Amine wax；Dispersing agent is the high-molecular copolymer of affinity groups containing pigment or the polymer blocks object of affinity groups containing pigment；Moistened surface
Bleeding agent is fluorine-carbon modified polyacrylate or organic silicon modified by polyether；Adhesive force agent is silane coupling agent or phosphate.
In order to solve the above technical problems, another technical solution used in the present invention is: it is general low to provide a kind of large arch dam
The preparation method of warm cured epoxy paint, comprising the following steps:
(1) liquid epoxies and modified resin, toughener, auxiliary agent, solvent are uniformly dispersed first, add pigments and fillers, passed through
High speed disperser shearing dispersion, the linear velocity of high speed shear dispersion are 25 ~ 30m/s, and jitter time is 45 ~ 60min；
(2) grinding distribution then is carried out into base-material by closed horizontal sand mill；
(3) first base-material and curing agent are mixed and stirred for uniformly in proportion when constructing, then working viscosity is adjusted to diluent, then
Carry out construction coating.
The beneficial effects of the present invention are:
Of the invention is a kind of general aseptic coating for the general temperature curing epoxy low paint of industrial protection corrosion-resistant large arch dam, it is not
The performance of anticorrosive paint is only improved only, installations and facilities surface can be preferably protected, delays coastal atmospheric corrosion medium to steel
The infringement of structure, it is ensured that and extend it and protect the service life, the maintenance of installations and facilities and the workload of recoating are reduced, can also be used as dimension
Engineering low prepared surface priming paint use is repaired, has tolerance and compatibility to the rust that cannot be thoroughly removed and with moist surface
Property, it can guarantee paint film excellent properties, it is often more important that it is not limited by low temperature when construction, as long as environment temperature is not less than -10 DEG C,
Paint film energy sound response solidification is a kind of high-performance, multipurpose, universal epoxy coating of new generation.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
A kind of general temperature curing epoxy low paint of large arch dam, is made of, the base-material base-material and cashew nut shell oil pnenolic aldehyde amine hardener
Be 100% with the sum of curing agent weight percentage, the curing agent weight percentage is 25%, the base-material include with
The raw material of lower weight percent: liquid epoxies E51 20%, liquid hydrocarbon resin 3%, oh type non-activated thinner 3%, ketone
3%, pigments and fillers 45%, pigments and fillers are the mixture that pigment and filler form, and pigment is chromate, and filler is silica flour, auxiliary agent 1%.
The auxiliary agent is thixotropic agent, dispersing agent, moistened surface bleeding agent and adhesive force agent, the weight of the adjuvant component
Amount percentage composition is organobentonite thixotropic agent 50%, and the high-molecular copolymer of affinity groups containing pigment dispersing agent 20% is fluorine-carbon modified
Polyacrylate 20%, silane coupling agent adhesive force agent 10%.
The preparation method of the general temperature curing epoxy low paint of the large arch dam, comprising the following steps:
(1) first by liquid epoxies and liquid hydrocarbon resin, oh type non-activated thinner, organobentonite thixotropic agent,
Ketone is uniformly dispersed, and adds pigments and fillers, shears and disperses through high speed disperser, and the linear velocity of high speed shear dispersion is 25m/s, dispersion
Time is 60min；
(2) grinding distribution then is carried out into base-material by closed horizontal sand mill；
(3) first base-material and curing agent are mixed and stirred for uniformly in proportion when constructing, then working viscosity is adjusted to diluent, then
Carry out construction coating.
Embodiment 2
A kind of general temperature curing epoxy low paint of large arch dam, is made of, the base-material base-material and cashew nut shell oil pnenolic aldehyde amine hardener
Be 100% with the sum of curing agent weight percentage, the curing agent weight percentage is 15%, the base-material include with
The raw material of lower weight percent: liquid epoxies E51 23%, liquid hydrocarbon resin 6%, oh type non-activated thinner 6%, alcohol
7%, pigments and fillers 40%, pigments and fillers are the mixture that pigment and filler form, and pigment is phosphate, and filler is talcum powder, auxiliary agent 3%.
The auxiliary agent is thixotropic agent, dispersing agent, moistened surface bleeding agent and adhesive force agent, the weight of the adjuvant component
Amount percentage composition is fumed silica thixotropic agent 70%, and the polymer blocks object of affinity groups containing pigment dispersing agent 10%, polyethers changes
Property organosilicon 10%, phosphate adhesive force agent 10%.
The preparation method of the general temperature curing epoxy low paint of the large arch dam, comprising the following steps:
(1) first by liquid epoxies and liquid hydrocarbon resin, oh type non-activated thinner, fluorine-carbon modified polyacrylate
Surfactant, alcohol are uniformly dispersed, and add pigments and fillers, shear and disperse through high speed disperser, the linear velocity of high speed shear dispersion
For 30m/s, jitter time 45min；
(2) grinding distribution then is carried out into base-material by closed horizontal sand mill；
(3) first base-material and curing agent are mixed and stirred for uniformly in proportion when constructing, then working viscosity is adjusted to diluent, then
Carry out construction coating.
Embodiment 3
A kind of general temperature curing epoxy low paint of large arch dam, is made of, the base-material base-material and cashew nut shell oil pnenolic aldehyde amine hardener
Be 100% with the sum of curing agent weight percentage, the curing agent weight percentage is 17%, the base-material include with
The raw material of lower weight percent: liquid epoxies E51 28%, liquid hydrocarbon resin 4%, oh type non-activated thinner 4%, benzene
5%, pigments and fillers 40%, pigments and fillers are the mixture that pigment and filler form, and pigment is zinc yellow, and filler is zinc oxide, auxiliary agent 2%.
The auxiliary agent is thixotropic agent, dispersing agent, moistened surface bleeding agent and adhesive force agent, the weight of the adjuvant component
Amount percentage composition is polyamide wax thixotropic agent 60%, and the high-molecular copolymer of affinity groups containing pigment dispersing agent 10% is fluorine-carbon modified poly-
Acrylate 15%, silane coupling agent adhesive force agent 15%.
The preparation method of the general temperature curing epoxy low paint of the large arch dam, comprising the following steps:
(1) first by liquid epoxies and liquid hydrocarbon resin, oh type non-activated thinner, the agent of phosphate adhesive force, benzene
It is uniformly dispersed, adds pigments and fillers, shear and disperse through high speed disperser, the linear velocity of high speed shear dispersion is 27m/s, when dispersion
Between be 48min；
(2) grinding distribution then is carried out into base-material by closed horizontal sand mill；
(3) first base-material and curing agent are mixed and stirred for uniformly in proportion when constructing, then working viscosity is adjusted to diluent, then
Carry out construction coating.
The beneficial effects of the present invention are:
Of the invention is a kind of general aseptic coating for the general temperature curing epoxy low paint of industrial protection corrosion-resistant large arch dam, it is not
The performance of anticorrosive paint is only improved only, installations and facilities surface can be preferably protected, delays coastal atmospheric corrosion medium to steel
The infringement of structure, it is ensured that and extend it and protect the service life, the maintenance of installations and facilities and the workload of recoating are reduced, can also be used as dimension
Engineering low prepared surface priming paint use is repaired, has tolerance and compatibility to the rust that cannot be thoroughly removed and with moist surface
Property, it can guarantee paint film excellent properties, it is often more important that it is not limited by low temperature when construction, as long as environment temperature is not less than -10 DEG C,
Paint film energy sound response solidification is a kind of high-performance, multipurpose, universal epoxy coating of new generation.
Specific advantage and using effect are as follows:
(1) VOC is low: VOC is not higher than 200g/L, and the VOC far below traditional solvent type epoxy paint is generally not less than 420g/L's
Content；
(2) high to surface treatment tolerance: containing active rust resisting pigment, to tolerate certain oxidation corrosion object and moisture content, energy band rust
Band wet coating fills, and the surface treatment of traditional solvent-borne epoxy primer require with the method appropriate removing grease on surface, salinity and
Other pollutants, and shot blastinog is to Sa2.5 grades (ISO8501-1) or power tool cleaning up to St3 grades；
(3) temperature tolerance, adaptable: coating can in -40 DEG C ~ 60 DEG C temperature ranges normal use, can resist in freezing winter and in sultry summer and
The complex environment of alternation of wetting and drying；
(4) brilliant salt spray resistance: coating is impervious excellent since with very high crosslink density, the porosity of coating is extremely low
Different, nearly all acid, alkali, organic solvent etc. cannot penetrate, and test through the 1500h of resistance to neutral salt spray, and paint film is unchanged；
(5) excellent mechanical performance: adhesive force, shock resistance, hardness, flexibility etc. are good；
(6) excellent extreme environment workability: the various method coatings such as brush, spray, rolling, leaching, roller not only can be used, and only
It wants epoxy temperature not less than -10 DEG C, can construct, paint film can solidify, and largely overcoming Conventional epoxy paint cannot lower than 5 DEG C
The limitation of construction.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (9)
1. a kind of general temperature curing epoxy low paint of large arch dam, which is characterized in that be made of base-material and curing agent, the base-material and
The sum of curing agent weight percentage is 100%, and the curing agent weight percentage is 15 ~ 25%, and the base-material includes
The raw material of following weight percent: liquid epoxies 20 ~ 30%, modified resin 3 ~ 6%, toughener 3 ~ 6%, solvent 3 ~ 7%, face is filled out
Material 40 ~ 55%, auxiliary agent 1 ~ 3%.
2. the general temperature curing epoxy low paint of large arch dam according to claim 1, which is characterized in that the modified resin is
Liquid hydrocarbon resin.
3. the general temperature curing epoxy low paint of large arch dam according to claim 1, which is characterized in that the toughener is hydroxyl
Fundamental mode non-activated thinner.
4. the general temperature curing epoxy low paint of large arch dam according to claim 1, which is characterized in that the solvent be ketone,
Alcohol or benzene.
5. the general temperature curing epoxy low paint of large arch dam according to claim 1, which is characterized in that the pigments and fillers are face
The mixture of material and filler composition, pigment are zinc yellow, phosphate or chromate, and filler is zinc oxide, calcium oxide, talcum powder, length
Mountain flour or silica flour.
6. the general temperature curing epoxy low paint of large arch dam according to claim 1, which is characterized in that the auxiliary agent is thixotroping
Agent, dispersing agent, moistened surface bleeding agent and adhesive force agent, the weight percentage of the adjuvant component be thixotropic agent 50 ~
70%, dispersing agent 10 ~ 20%, moistened surface bleeding agent 10 ~ 20%, adhesive force agent 10 ~ 30%.
7. the general temperature curing epoxy low paint of large arch dam according to claim 1, which is characterized in that the curing agent is waist
Shell oil pnenolic aldehyde amine hardener.
8. the general temperature curing epoxy low paint of large arch dam according to claim 6, which is characterized in that the thixotropic agent is to have
Machine bentonite, fumed silica or polyamide wax；Dispersing agent is for the high-molecular copolymer of affinity groups containing pigment or containing pigment parent
With group polymer blocks object；Moistened surface bleeding agent is fluorine-carbon modified polyacrylate or organic silicon modified by polyether；Adhesive force
Agent is silane coupling agent or phosphate.
9. the preparation method of the general temperature curing epoxy low paint of large arch dam according to claim 1, which is characterized in that including with
Lower step:
(1) liquid epoxies and modified resin, toughener, auxiliary agent, solvent are uniformly dispersed first, add pigments and fillers, passed through
High speed disperser shearing dispersion, the linear velocity of high speed shear dispersion are 25 ~ 30m/s, and jitter time is 45 ~ 60min；
(2) grinding distribution then is carried out into base-material by closed horizontal sand mill；
(3) first base-material and curing agent are mixed and stirred for uniformly in proportion when constructing, then working viscosity is adjusted to diluent, then
Carry out construction coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839229.2A CN108948965A (en) | 2018-07-27 | 2018-07-27 | General temperature curing epoxy low paint of large arch dam and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839229.2A CN108948965A (en) | 2018-07-27 | 2018-07-27 | General temperature curing epoxy low paint of large arch dam and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108948965A true CN108948965A (en) | 2018-12-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810839229.2A Pending CN108948965A (en) | 2018-07-27 | 2018-07-27 | General temperature curing epoxy low paint of large arch dam and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110256939A (en) * | 2019-07-02 | 2019-09-20 | 中国科学院宁波材料技术与工程研究所 | Maritime concrete protection anticorrosive paint and preparation method thereof, application |
| CN112391069A (en) * | 2020-11-05 | 2021-02-23 | 湖南湖大艾盛汽车技术开发有限公司 | Spray for reducing laser absorption and reflection during scanning and preparation method thereof |
| CN114806329A (en) * | 2022-04-06 | 2022-07-29 | 湘江涂料科技有限公司 | High-solid-content low-surface-treatment moisture-curing polysulfide epoxy coating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110256939A (en) * | 2019-07-02 | 2019-09-20 | 中国科学院宁波材料技术与工程研究所 | Maritime concrete protection anticorrosive paint and preparation method thereof, application |
| CN110256939B (en) * | 2019-07-02 | 2021-06-29 | 中国科学院宁波材料技术与工程研究所 | Anticorrosive paint for marine concrete protection and preparation method and application thereof |
| CN112391069A (en) * | 2020-11-05 | 2021-02-23 | 湖南湖大艾盛汽车技术开发有限公司 | Spray for reducing laser absorption and reflection during scanning and preparation method thereof |
| CN114806329A (en) * | 2022-04-06 | 2022-07-29 | 湘江涂料科技有限公司 | High-solid-content low-surface-treatment moisture-curing polysulfide epoxy coating |
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Application publication date: 20181207 |
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