CN107603407A - A kind of special-purpose aqueous anticorrosive paint of steel surface - Google Patents
A kind of special-purpose aqueous anticorrosive paint of steel surface Download PDFInfo
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- CN107603407A CN107603407A CN201710873876.0A CN201710873876A CN107603407A CN 107603407 A CN107603407 A CN 107603407A CN 201710873876 A CN201710873876 A CN 201710873876A CN 107603407 A CN107603407 A CN 107603407A
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Abstract
The invention discloses a kind of special-purpose aqueous anticorrosive paint of steel surface, belong to technical field of coatings.After chitosan and water are stirred by the present invention, swelling is stood, then butyl titanate is added dropwise, chitosan enzyme hydrolysis is then added, adds curing agent and be stirred, produce Chitosan hydrolysate；8~10 parts of modified firming agents and 5~6 parts of magnetization nanometer iron powders are stirred, add 40~60 parts of aqueous epoxy resins, 70~80 parts of water, 5~6 parts of defoamers, 0.1~0.2 part of thickener, 5~6 parts of color stuffings continue to be stirred, and produce the special-purpose aqueous anticorrosive paint of steel surface.The special-purpose aqueous anticorrosive paint of steel surface that technical solution of the present invention provides has excellent antiseptic property.
Description
Technical field
The invention discloses a kind of special-purpose aqueous anticorrosive paint of steel surface, belong to technical field of coatings.
Background technology
Anticorrosive paint, conventional anticorrosive paint and anticorrosive paint are generally divided into, are one kind essential in paint
Coating.Conventional anticorrosive paint is under general condition, etch-proof effect, the longevity that protection non-ferrous metal uses to be played to metal etc.
Life；It for anticorrosive paint refers to relatively conventional anticorrosive paint, can be applied in relatively harsh corrosive environment, and have and can reach
A kind of anticorrosive paint of protection period longer than conventional anticorrosive paint.
The antiseptic principle of general anticorrosive paint is chemical, physically and electrically chemical direction, explains in detail below：
The corrosion-resistant principles of chemistry are exactly the innocuous substance for neutrality by harmful acid-base material neutralization, to protect in corrosion-inhibiting coating
Material is not encroached on by corrosive substance.Some amphoteric compounds, such as aluminium hydroxide, hydroxide are often added in antirusting paint
Barium and zinc oxide etc., these materials are easy to that chemical action occurs with soda acid nuisance, and realize antiseptic effect.Corrosion-resistant physics
Principle is exactly that will be kept apart with corrosion-inhibiting coating by protection materials and the corrosive substance in the external world.The physical principle of antirusting paint is exactly
The corrosion-inhibiting coating of densification is obtained using film forming agent, to isolate antisepsis to by the injury of protection materials, such as leaded painting
With regard to lead soap can be formed after material and oil plant reaction, to ensure the compactness of corrosion-inhibiting coating.Corrosion-resistant electrochemical action refers in antirust
Some special materials are added in coating, can so be reacted when moisture and oxygen are by antirusting paint formed anti-corrosion from
Son, the metallic surfaces such as steel are passivated, so as to prevent the dissolution of metal ion, reach corrosion-resistant purpose, this particular matter
In it is most common be exactly chromate.
Traditional anticorrosive paint is based on solvent-borne type, while being played a great role in metal protection, due to containing big
Organic volatile is measured, portioned product is also containing hazardous solvents such as benzene class, gylcol ethers, to the body of producers and workmen
Body injury is larger, to environmental disruption than more serious.
In recent years, water-based anticorrosive paint becomes the research and development focus of industrial antisepsis coating.And with novel aqueous
The continuous development of the materials such as resin, novel antirust pigment so that the performance of water-based anticorrosive paint is improved constantly, and is had started to
Apply in the fields such as building decoration, automobile, ship and Production Container, railway locomotive, Aero-Space, traffic bridge.It is current water-based
The waterborne inorganic einc-rich primer, water-base epoxy coating series, water-borne acrylic coatings, water-based poly- wide in variety of concentrating on of anticorrosive paint
Urethane coating etc..These coating exist to ground processing and construction requirement height in varying degrees in application process, or are multigroup
Work inconvenience is given, or the problems such as performance is still undesirable, therefore, also needs to study water-based anticorrosive paint.
The content of the invention
The present invention solves the technical problem of：For traditional anticorrosive paint antiseptic effect it is bad the problem of, there is provided
A kind of special-purpose aqueous anticorrosive paint of steel surface.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of special-purpose aqueous anticorrosive paint of steel surface, is made up of the raw material of following parts by weight：40~60 parts of water-base epoxies
Resin, 8~10 parts of modified firming agents, 5~6 parts of magnetization nanometer iron powders, 70~80 parts of water, 5~6 parts of defoamers, 0.1~0.2 part
Thickener, 5~6 parts of color stuffings；
The special-purpose aqueous anticorrosive paint preparation process of steel surface is：Each raw material is weighed by raw material composition, first will be modified solidified
Agent and magnetization nanometer iron powder are stirred, and add aqueous epoxy resins, water, defoamer, thickener, it is mixed that color stuffing continues stirring
Close, produce the special-purpose aqueous anticorrosive paint of steel surface.
The modified firming agent preparation process is：Count in parts by weight, take 2~3 parts of chitosans successively, 100~120 parts
Water, 10~20 parts of butyl titanates, 0.1~0.2 part of chitosan enzyme and 10~20 parts of curing agent, first chitosan and water are stirred mixed
After conjunction, swelling is stood, then butyl titanate is added dropwise, chitosan enzyme hydrolysis is then added, adds curing agent and be stirred, produce
Modified firming agent.
The magnetization nanometer iron powder is placed in magnetization in magnetic field by nanometer iron powder and obtained.
The defoamer is by dimethicone, white carbon and emulsifying agent in mass ratio 1：1：2 configurations form；The emulsifying agent
Any one for monoglyceride, in phosphatide or diglyceride.
The thickener is polyvinyl alcohol, any one in methylcellulose or polyacrylate.
The color stuffing is talcum powder, any one in powdered whiting or chrome yellow.
The curing agent is ethylenediamine, any one in hexamethylene diamine or diethylenetriamine.
The beneficial effects of the invention are as follows：
（1）For the present invention by adding chitin modified curing agent, chitosan intramolecular before not hydrolyzing contains a large amount of hydrogen bonds
Active force, makes chitosan molecule swelling turn into orderly macromolecular structure, and amount of activated group exposure is first in modifying process
First, tetrabutyl titanate hydrolysis, the active group after hydrolysate titanium dioxide is exposed adsorbs and is dispersed in chitosan swelling solution
In body, secondly, by adding chitosan enzyme, the orderly macromolecular structure of chitosan is destroyed, and is gradually converted into small molecule thing
Matter, and amino active in molecular structure and hydroxyl are exposed, so that the active group number after hydrolysis in chitosan
Amount increases, and the hydroxyl exposed after titanium dioxide and chitosan hydrolyzate forms stable combination, and its molecular size is compared to solidification
It is larger for agent, on the one hand, titanium dioxide has ultraviolet shielded effect, so effectively avoids infringement of the ultraviolet to coating, separately
On the one hand, the molecular weight of chitosan is advantageous to modified firming agent in use after reducing, and rapid osmotic is diffused into asphalt mixtures modified by epoxy resin
In resin system, solidification is crosslinked with epoxy resin, and due to the presence of a large amount of amino, promote epoxy resin open loop, increase water
Property anticorrosive paint crosslinking points, and cross-linked network gap is wider for directly small molecule curing agent is used, so as to favourable
Enter in magnetic Nano iron powder inside cross-linked network structure so that the system after solidification is finer and close, so as to improve water-repellent preservation
The antiseptic property of coating；
（2）Magnetize nano iron powder by adding, in use, on the one hand, nanometer iron powder, can by autoxidation
Steel surface is prevented to be oxidized corrosion, on the other hand, magnetization nanometer iron powder is by the parcel dispersed filler of modified firming agent in water
Property anticorrosive paint system in, the consistency of system is improved, so as to improve the antiseptic property of water-based anticorrosive paint, and after magnetizing
Iron powder has magnetic, can be adsorbed on steel surface, drives whole Water-Soluble Anticorrosive Paint System to be attached to steel surface, and enhancing is water-based
The adhesive force of anticorrosive paint, so as to improve the antiseptic property of water-based anticorrosive paint.
Embodiment
Count in parts by weight, take 2~3 parts of chitosans successively, 100~120 parts of water, 10~20 parts of butyl titanates, 0.1~
0.2 part of chitosan enzyme and 10~20 parts of curing agent, chitosan and water are added in beaker, 20 are stirred with glass bar~
After 30min, 3~4h of swelling is stood, then beaker immigration digital display is tested the speed constant temperature blender with magnetic force, in 50~60 DEG C of conditions of temperature
Under, under the conditions of rotating speed is 300~500r/min, 40~50min of heating stirring, then with dropping funel with 3~5mL/min speed
Into beaker plus butyl titanate is dripped, after butyl titanate is added dropwise, under the conditions of rotating speed is 300~500r/min, after
40~50min of continuous stirring, it is 35~40 DEG C in temperature, rotating speed is 200~300r/min then to chitosan enzyme is added in beaker
Under the conditions of, 1~2h of hydrolysis is stirred, then curing agent is added into beaker, stirred under the conditions of rotating speed is 500~600r/min
40~50min is mixed, obtains modified firming agent；Nanometer iron powder is placed in magnetic field, in magnetic induction intensity be 0.5~0.8T conditions
Under, magnetize 12~18h, obtain magnetization nanometer iron powder；Count in parts by weight, take 40~60 parts of aqueous epoxy resins successively, 8~10 parts
Modified firming agent, 5~6 parts of magnetization nanometer iron powders, 70~80 parts of water, 5~6 parts of defoamers, 0.1~0.2 part of thickener, 5~6 parts
Color stuffing, first by modified firming agent and magnetization nanometer iron powder add batch mixer in, in rotating speed be 1100~1200r/min conditions
Under, high-speed stirred mixes 40~50min, then aqueous epoxy resins are added into batch mixer, water, defoamer, thickener, and face is filled out
Material, continue high-speed stirred 40~50min of mixing under the conditions of rotating speed is 1100~1200r/min, produce steel surface dedicated water
Property anticorrosive paint.The defoamer is by dimethicone, white carbon and emulsifying agent in mass ratio 1：1：2 configurations form.The breast
Agent is monoglyceride, any one in phosphatide or diglyceride.The thickener is polyvinyl alcohol, methylcellulose or poly-
Any one in acrylate.The color stuffing is talcum powder, any one in powdered whiting or chrome yellow.The solidification
Agent is ethylenediamine, any one in hexamethylene diamine or diethylenetriamine.
Example 1
Count in parts by weight, take 3 parts of chitosans successively, 120 parts of water, 20 parts of butyl titanates, 0.2 part of chitosan enzyme and 20 parts it is solid
Agent, chitosan and water are added in beaker, after being stirred 30min with glass bar, stand swelling 4h, then beaker is moved into number
The aobvious constant temperature blender with magnetic force that tests the speed, under the conditions of temperature 60 C, under the conditions of rotating speed is 500r/min, heating stirring 50min, then
Butyl titanate into beaker plus is dripped with 5mL/min speed with dropping funel, after butyl titanate is added dropwise, is in rotating speed
Under the conditions of 500r/min, continue to stir 50min, be 40 DEG C in temperature, rotating speed is then to chitosan enzyme is added in beaker
Under the conditions of 300r/min, hydrolysis 2h is stirred, then curing agent is added into beaker, is stirred under the conditions of rotating speed is 600r/min
50min is mixed, obtains modified firming agent；Nanometer iron powder is placed in magnetic field, under the conditions of magnetic induction intensity is 0.8T, magnetizes 18h,
Nanometer iron powder must be magnetized；Count in parts by weight, take 60 parts of aqueous epoxy resins, 10 parts of modified firming agents, 6 parts of magnetization nanometers successively
Iron powder, 80 parts of water, 6 parts of defoamers, 0.2 part of thickener, 6 parts of color stuffings, first modified firming agent and magnetization nanometer iron powder are added
In batch mixer, under the conditions of rotating speed is 1200r/min, high-speed stirred mixing 50min, then water-base epoxy tree is added into batch mixer
Fat, water, defoamer, thickener, color stuffing, continue high-speed stirred mixing 50min under the conditions of rotating speed is 1200r/min, produce
The special-purpose aqueous anticorrosive paint of steel surface.The defoamer is by dimethicone, white carbon and emulsifying agent in mass ratio 1：1：2 match somebody with somebody
Put and form.The emulsifying agent is monoglyceride.The thickener is polyvinyl alcohol.The color stuffing is talcum powder.The solidification
Agent is ethylenediamine.
Example 2
Nanometer iron powder is placed in magnetic field, under the conditions of magnetic induction intensity is 0.8T, magnetizes 18h, obtains magnetization nanometer iron powder；By weight
Number meter is measured, takes 60 parts of aqueous epoxy resins successively, 10 parts of curing agent, 6 parts of magnetization nanometer iron powders, 80 parts of water, 6 parts of defoamers,
0.2 part of thickener, 6 parts of color stuffings, first by curing agent and magnetization nanometer iron powder add batch mixer in, in rotating speed be 1200r/min
Under the conditions of, high-speed stirred mixes 50min, then aqueous epoxy resins are added into batch mixer, water, defoamer, thickener, and face is filled out
Material, continue high-speed stirred mixing 50min under the conditions of rotating speed is 1200r/min, produce the special-purpose aqueous anticorrosive paint of steel surface.
The defoamer is by dimethicone, white carbon and emulsifying agent in mass ratio 1：1：2 configurations form.The emulsifying agent is single glycerine
Ester.The thickener is polyvinyl alcohol.The color stuffing is talcum powder.The curing agent is ethylenediamine.
Example 3
Count in parts by weight, take 3 parts of chitosans successively, 120 parts of water, 20 parts of butyl titanates, 0.2 part of chitosan enzyme and 20 parts it is solid
Agent, chitosan and water are added in beaker, after being stirred 30min with glass bar, stand swelling 4h, then beaker is moved into number
The aobvious constant temperature blender with magnetic force that tests the speed, under the conditions of temperature 60 C, under the conditions of rotating speed is 500r/min, heating stirring 50min, then
Butyl titanate into beaker plus is dripped with 5mL/min speed with dropping funel, after butyl titanate is added dropwise, is in rotating speed
Under the conditions of 500r/min, continue to stir 50min, be 40 DEG C in temperature, rotating speed is then to chitosan enzyme is added in beaker
Under the conditions of 300r/min, hydrolysis 2h is stirred, then curing agent is added into beaker, is stirred under the conditions of rotating speed is 600r/min
50min is mixed, obtains modified firming agent；Count in parts by weight, take 60 parts of aqueous epoxy resins successively, 10 parts of modified firming agents, 6 parts
Nanometer iron powder, 80 parts of water, 6 parts of defoamers, 0.2 part of thickener, 6 parts of color stuffings, first modified firming agent and nanometer iron powder are added
In batch mixer, under the conditions of rotating speed is 1200r/min, high-speed stirred mixing 50min, then water-base epoxy tree is added into batch mixer
Fat, water, defoamer, thickener, color stuffing, continue high-speed stirred mixing 50min under the conditions of rotating speed is 1200r/min, produce
The special-purpose aqueous anticorrosive paint of steel surface.The defoamer is by dimethicone, white carbon and emulsifying agent in mass ratio 1：1：2 match somebody with somebody
Put and form.The emulsifying agent is monoglyceride.The thickener is polyvinyl alcohol.The color stuffing is talcum powder.The solidification
Agent is ethylenediamine.
Comparative example：The anticorrosive paint of Beijing Chemical Co., Ltd. production.
The gained of example 1 to 3 anticorrosive paint and comparative example product are subjected to performance detection, specific detection method is as follows：
Test sample plate is prepared by GB/T1727, and according to GB/T5210 detection model adhesive force, it is electronic that model is fixed on into QFD
Carry out drawing a circle method test on Coating adhesion test instrument, with 4 times of lens examination cuts and is defined the level after being completed, define the level up to
Few to ensure that test result unanimously define the level twice, 1 grade is highest ranking, and 7 grades are worst, and deciding grade and level more rearward, represents material
Adhesive force is poorer, and testing result is as shown in table 1.According to the salt fog resistance of TJ/CL252.1 detection models.
Table 1
| Detection content | Example 1 | Example 2 | Example 3 | Comparative example |
| Adhesive force grade/level | 1 | 2 | 4 | 5 |
The salt fog resistance testing result of example 1 is that 1000h is non-foaming, non-corrosive, not fallen off, and unidirectionally expands erosion 0.5mm at cut, real
The result of example 2 is that 870h unidirectionally expands erosion 0.9mm, and the result of example 3 is that 860h unidirectionally expands erosion 1.1mm, and comparative example result is that 760h is unidirectional
Expand erosion 1.8mm.
From testing result, the present invention gained special-purpose aqueous anticorrosive paint of steel surface has excellent antiseptic property.
Claims (7)
- A kind of 1. special-purpose aqueous anticorrosive paint of steel surface, it is characterised in that：It is made up of the raw material of following parts by weight：40~ 60 parts of aqueous epoxy resins, 8~10 parts of modified firming agents, 5~6 parts of magnetization nanometer iron powders, 70~80 parts of water, 5~6 parts of defoamings Agent, 0.1~0.2 part of thickener, 5~6 parts of color stuffings；The special-purpose aqueous anticorrosive paint preparation process of steel surface is：Each raw material is weighed by raw material composition, first will be modified solidified Agent and magnetization nanometer iron powder are stirred, and add aqueous epoxy resins, water, defoamer, thickener, it is mixed that color stuffing continues stirring Close, produce the special-purpose aqueous anticorrosive paint of steel surface.
- A kind of 2. special-purpose aqueous anticorrosive paint of steel surface according to claim 1, it is characterised in that：The modified firming agent Preparation process is：Count in parts by weight, take 2~3 parts of chitosans successively, 100~120 parts of water, 10~20 parts of butyl titanates, 0.1~0.2 part of chitosan enzyme and 10~20 parts of curing agent, after being first stirred chitosan and water, swelling is stood, then titanium is added dropwise Sour four butyl esters, chitosan enzyme hydrolysis is then added, curing agent is added and is stirred, produce modified firming agent.
- A kind of 3. special-purpose aqueous anticorrosive paint of steel surface according to claim 1, it is characterised in that：The magnetization Nanoscale Iron Powder is placed in magnetization in magnetic field by nanometer iron powder and obtained.
- A kind of 4. special-purpose aqueous anticorrosive paint of steel surface according to claim 1, it is characterised in that：The defoamer is by two Methyl-silicone oil, white carbon and emulsifying agent in mass ratio 1：1：2 configurations form；The emulsifying agent is monoglyceride, phosphatide or glycerine Any one in diester.
- A kind of 5. special-purpose aqueous anticorrosive paint of steel surface according to claim 1, it is characterised in that：The thickener is poly- Any one in vinyl alcohol, methylcellulose or polyacrylate.
- A kind of 6. special-purpose aqueous anticorrosive paint of steel surface according to claim 1, it is characterised in that：The color stuffing is cunning Any one in stone flour, powdered whiting or chrome yellow.
- A kind of 7. special-purpose aqueous anticorrosive paint of steel surface according to claim 1, it is characterised in that：The curing agent is second Any one in diamines, hexamethylene diamine or diethylenetriamine.
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| CN201710873876.0A CN107603407A (en) | 2017-09-25 | 2017-09-25 | A kind of special-purpose aqueous anticorrosive paint of steel surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108320895A (en) * | 2018-03-30 | 2018-07-24 | 深圳市斯比特电子有限公司 | A kind of integrated transformer |
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Application publication date: 20180119 |