CN105838193A - Water-borne epoxy primer - Google Patents
Water-borne epoxy primer Download PDFInfo
- Publication number
- CN105838193A CN105838193A CN201610312741.2A CN201610312741A CN105838193A CN 105838193 A CN105838193 A CN 105838193A CN 201610312741 A CN201610312741 A CN 201610312741A CN 105838193 A CN105838193 A CN 105838193A
- Authority
- CN
- China
- Prior art keywords
- water
- zinc powder
- priming paint
- epoxy
- base epoxy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- 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
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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)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the field of coating, and particularly relates to a water-borne epoxy primer. Calixarene molecules are grafted to nano zinc powder through isocyanate, modified zinc powder is entwisted to a certain degree through grafted calixarene and the epoxy resin molecule structure in the stirring process, the dispersing stability of the zinc powder in the primer material is promoted, and the problems of agglomeration and sedimentation of the zinc powder in resin are solved. The water-borne epoxy primer is free of pollution to the environment, convenient to construct and harmless to the health of constructors. The drying speed of a primer film is high, the adhesive force is good, the mechanical strength is high, and the antiseptic property is excellent.
Description
Technical field
The invention belongs to paint field, particularly to a kind of water-base epoxy priming paint.
Background technology
In steel structure anti-corrosion painting design, zinc rich primer is to have the zinc powder of sacrificial anode effect as main rust resisting pigment
One class anticorrosive paint product, it to have good adhesive force, and can play the rust inhibition of excellence steel.Zinc rich primer master
There are three types: epoxy zinc rich primer, alcohol-soluble zinc-rich coating and waterborne inorganic einc-rich primer.Wherein, epoxy zinc-rich
The corrosion-resisting function of priming paint is to sacrifice zinc powder by corrosion in corrosive environment to reach to protect steel substrate, is broadly divided into three kinds: water
Cured epoxy zinc rich primer, water solublity cured epoxy zinc rich primer and solvent-borne type cured epoxy zinc rich primer after dissolubility.
Epoxy zinc rich primer anticorrosion mechanism is: (1) epoxy zinc rich primer plays electro-chemical protection: owing to zinc sprinkles than ironwork,
Easily lose electronics.During corrosion early stage, zinc powder and steel substrate composition galvanic element, the electrode potential of zinc is than the electrode of ferrum
Current potential is born, and zinc is anode (commonly referred to as sacrificial anode), and ferrum is negative electrode, and electric current is flowed to ferrum by zinc, and steel substrate has just obtained the moon
Pole is protected.Because of its zinc powder electro-chemical protection to iron and steel, also known as electrochemistry antirust paint.(2) in epoxy zinc rich primer, zinc is rotten
Erosion deposit shielding protection: in corrosion late stage, zinc powder paint is constantly corroded in application process, zinc powder gap and iron and steel
Surface deposited corrosion product, i.e. basic zinc carbonate, is commonly called as " white rust ", its compact structure and non-conductive, is stablizing of indissoluble
Compound, it is possible to stop and the erosion of mask erosion medium, play corrosion protection result, be the most also described as " selfreparing " of zinc powder paint
Property.
But, owing to zinc powder can not be for a long time at dispersion stored for extended periods based on water, so the most common aqueous ring
Oxygen zinc-rich is the in the majority of three components.This method is more complicated, needs to mix each component in order, when zinc powder adds mixing,
Zn dust, to human health, may return and be easily caused " zinc calentura " because of suction, has asking in terms of potential health and safety
Topic.
Summary of the invention
The technical problem to be solved is: improve the dispersion stabilization of zinc powder in water-base epoxy priming paint, for solving this
Technical problem, the technical solution used in the present invention is:
Thering is provided a kind of water-base epoxy priming paint, calculate in parts by weight, this priming paint includes following component:
Wherein, aqueous epoxy resins is epoxy resin E-40, E-42, E-44, E-51；
Epoxide diluent is AGE epoxy active diluent or BGE epoxy active diluent；
Cosolvent is propylene glycol monomethyl ether or propylene glycol methyl ether acetate；
Zinc powder preferred nanoscale zinc powder；
Zinc powder modifying agent is cup [6] aromatic hydrocarbons or cup [8] aromatic hydrocarbons；
Aqueous epoxy curing agent is 701 firming agent, WH900 firming agent or 721 firming agent.
Present invention also offers the preparation method of a kind of above-mentioned water-base epoxy priming paint, particularly as follows:
(1) modification of zinc powder
Zinc powder modifying agent calixarenes and isocyanates are joined in organic solvent, under conditions of temperature is 70～85 DEG C, machinery
It is stirred at reflux reaction 2～6 hours, in above-mentioned system, adds zinc powder, continue to be stirred at reflux 8～15 hours, recycling design, filter,
Washing, dry, pulverize, and obtains modified zinc powder,
Wherein, isocyanates is 0.2～0.4:1 with the mass ratio of zinc powder modifying agent calixarenes, and isocyanates is selected from toluene diisocyanate
Acid esters, isophorone diisocyanate, hexa-methylene-1,6-diisocyanate, 1,3-Diisocyanatomethylcyclohexane or isophthalic two
Methyl diisocyanate,
Zinc powder modifying agent calixarenes is 0.02～0.05:1 with the mass ratio of organic solvent, and organic solvent is selected from ethyl acetate, chloroform
Or dimethylformamide；
(2) fully, then it is added thereto in step (1) obtain by aqueous epoxy resins, epoxide diluent, cosolvent mixing
Modified zinc powder, at a temperature of 60～70 DEG C stir 15～30 minutes, regulation system pH value is 7～9, i.e. obtains component A；
(3), after aqueous epoxy curing agent being mixed with deionized water fully, individually pack as component B.
During use, after component A and component B are sufficiently mixed, film-forming.
The beneficial effects of the present invention is: the present invention utilizes isocyanates to be grafted on nano zinc powder by calixarenes molecule, modified
Zinc powder in whipping process, form certain entanglement by grafting calixarenes up with epoxy molecule structure, promote paint
The dispersion stabilization of zinc powder in material, solves zinc powder reunion in resin, settlement issues；The present invention utilize propylene glycol monomethyl ether,
Propylene glycol methyl ether acetate, as cosolvent, reduces the viscosity of binder system.
Solvent is used water as when the present invention constructs, environmentally safe, easy construction, harmless to workmen's health；Paint film is done
Dry speed is fast, and adhesive force is good, and mechanical strength is high, and antiseptic property is excellent.Can apply in the field such as container, boats and ships, as
Anti-corrosion primer.
Detailed description of the invention
Embodiment 1
(1) modification of zinc powder
0.8 kilogram of cup [6] aromatic hydrocarbons and 0.1 kilogram of isophorone diisocyanate are joined in 18 kilograms of dimethylformamides, machine
Tool is stirred at reflux reaction 4 hours, adds nanoscale zinc powder 5 kilograms, continues to be stirred at reflux 12 hours, reclaim in above-mentioned system
Solvent, filters, and washing dry, pulverize, and obtains modified zinc powder；
(2) by E-44 aqueous epoxy resins 50 weight portion, AGE epoxy active diluent 4 weight portion, propylene glycol monomethyl ether 7
Weight portion mixing fully, then is added thereto in step (1) modified zinc powder 18 weight portion obtained, and stirs at a temperature of 65 DEG C
30 minutes, i.e. obtain component A；
(3), after aqueous epoxy curing agent 9 weight portion being mixed with deionized water 50 weight portion fully, individually wrap as component B
Dress.
After film-forming, coating performance is the most as shown in table 1.
Embodiment 2
(1) modification of zinc powder
1.0 kilograms of cup [8] aromatic hydrocarbons and 0.1 kilogram of isophorone diisocyanate are joined in 18 kilograms of dimethylformamides, machine
Tool is stirred at reflux reaction 4 hours, adds nanoscale zinc powder 5 kilograms, continues to be stirred at reflux 12 hours, reclaim in above-mentioned system
Solvent, filters, and washing dry, pulverize, and obtains modified zinc powder；
(2) with embodiment 1；
(3) with embodiment 1.
Film-forming process is same as in Example 1, and coating performance is the most as shown in table 1.
Comparative example 1
(1) modification of zinc powder
0.55 kilogram of cup [4] aromatic hydrocarbons and 0.1 kilogram of isophorone diisocyanate are joined in 18 kilograms of dimethylformamides, machine
Tool is stirred at reflux reaction 4 hours, adds nanoscale zinc powder 5 kilograms, continues to be stirred at reflux 12 hours, reclaim in above-mentioned system
Solvent, filters, and washing dry, pulverize, and obtains modified zinc powder；
(2) with embodiment 1；
(3) with embodiment 1.
Film-forming process is same as in Example 1, and coating performance is the most as shown in table 1.
Comparative example 2
Not being modified zinc powder, remaining component, processing step are same as in Example 1:
(1) by E-44 aqueous epoxy resins 50 weight portion, AGE epoxy active diluent 4 weight portion, propylene glycol monomethyl ether 7
Weight portion mixing fully, then is added thereto to nanoscale zinc powder 18 weight portion, stirs 30 minutes, i.e. obtain at a temperature of 65 DEG C
Component A；
(2), after aqueous epoxy curing agent 9 weight portion being mixed with deionized water 50 weight portion fully, individually wrap as component B
Dress.
Film-forming process is same as in Example 1, and coating performance is the most as shown in table 1.
Table 1
| Specimen coding | Adhesive force | Impact resistance/cm | Salt water resistance | Resistance to neutral salt spray/h |
| Embodiment 1 | 1 | 50 | Pass through | 1600 |
| Embodiment 2 | 0 | ＞ 50 | Pass through | 2000 |
| Comparative example 1 | 2 | 30 | Pass through | 450 |
| Comparative example 2 | 2 | 25 | Pass through | 400 |
Adhesive force is pressed the method in ISO2409-1974 and is measured；
Impact resistance is pressed the method in GB/T1732-93 and is measured；
Resistance to neutral salt spray is pressed the method in GB/T1771-2007 and is measured；
The detection of resistance to salt water with the sodium chloride solution of Solute mass fraction 5%, temperature 25 DEG C for detection environment, detection time is
48 hours.
Experimental result in each embodiment in table in comparison, compared to cup [6] aromatic hydrocarbons and cup [8] aromatic hydrocarbons, uses cup [4] aromatic hydrocarbons as zinc
Promotion scattered effect almost cannot be played during powder modifying agent；And only for the ratio of both embodiment 1 and embodiment 2 experimental result
Relatively it is also seen that: use effect cup to be significantly better than [6] aromatic hydrocarbons that cup [8] is aromatic modified.To this phenomenon, applicant thinks: should
This be the calixarenes that is grafted on zinc powder in stirring mixed process, its cavity structure to a certain degree " is socketed " and has arrived epoxy resin
Molecule segment on formed and tangle, thus promote zinc powder dispersion in resin matrix；It is less that cup [4] aromatic hydrocarbons is likely due to cavity,
Almost cannot form socket with epoxy segment, therefore promote that scattered effect is the most undesirable.
Claims (9)
1. a water-base epoxy priming paint, it is characterised in that: described water-base epoxy priming paint is calculated in parts by weight, including as follows
Component,
2. water-base epoxy priming paint as claimed in claim 1, it is characterised in that: described aqueous epoxy resins be epoxy resin E-40,
E-42, E-44 or E-51.
3. water-base epoxy priming paint as claimed in claim 1, it is characterised in that: described epoxide diluent is AGE epoxy-reactive
Diluent or BGE epoxy active diluent.
4. water-base epoxy priming paint as claimed in claim 1, it is characterised in that: described cosolvent is propylene glycol monomethyl ether or propylene glycol
Methyl ether acetate.
5. water-base epoxy priming paint as claimed in claim 1, it is characterised in that: described zinc powder modifying agent is cup [6] aromatic hydrocarbons or cup [8]
Aromatic hydrocarbons.
6. water-base epoxy priming paint as claimed in claim 1, it is characterised in that: described aqueous epoxy curing agent be 701 firming agent,
WH900 firming agent or 721 firming agent.
7. the preparation method of the water-base epoxy priming paint as described in any one of claim 1 to 6, it is characterised in that: described preparation side
Method is,
(1) modification of zinc powder
Joining in organic solvent by described zinc powder modifying agent and isocyanates, under conditions of temperature is 70～85 DEG C, machinery stirs
Mix back flow reaction 2～6 hours, in above-mentioned system, add zinc powder, continue to be stirred at reflux 8～15 hours, recycling design, filter,
Washing, dry, pulverize, and obtains modified zinc powder；
(2) fully, then it is added thereto in step (1) obtain by aqueous epoxy resins, epoxide diluent, cosolvent mixing
Modified zinc powder, at a temperature of 60～70 DEG C stir 15～30 minutes, i.e. obtain component A；
(3), after aqueous epoxy curing agent being mixed with deionized water fully, individually pack as component B.
8. the preparation method of water-base epoxy priming paint as claimed in claim 7, it is characterised in that: different described in step (1)
Cyanate is 0.2～0.4:1 with the mass ratio of zinc powder modifying agent；Described isocyanates is toluene di-isocyanate(TDI), isophorone two
Isocyanates, hexa-methylene-1,6-diisocyanate, 1,3-Diisocyanatomethylcyclohexane or an xylylene diisocyanate.
9. the preparation method of water-base epoxy priming paint as claimed in claim 7, it is characterised in that: the zinc described in step (1)
Powder modifying agent is 0.02～0.05:1 with the mass ratio of organic solvent, and described organic solvent is ethyl acetate, chloroform or dimethyl methyl
Amide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312741.2A CN105838193B (en) | 2016-05-12 | 2016-05-12 | A kind of water-base epoxy priming paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610312741.2A CN105838193B (en) | 2016-05-12 | 2016-05-12 | A kind of water-base epoxy priming paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105838193A true CN105838193A (en) | 2016-08-10 |
| CN105838193B CN105838193B (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610312741.2A Active CN105838193B (en) | 2016-05-12 | 2016-05-12 | A kind of water-base epoxy priming paint |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106336772A (en) * | 2016-08-26 | 2017-01-18 | 李水金 | Waterborne epoxy resin primer |
| CN107987671A (en) * | 2017-12-11 | 2018-05-04 | 湖南太子化工涂料有限公司 | A kind of epoxy primer and its preparation method and application |
| CN108034294A (en) * | 2017-11-14 | 2018-05-15 | 广州擎天材料科技有限公司 | A kind of zinc slurry and its cladding process for being used to improve the secondary adhesive force of water-thinned epoxy zinc-rich coating |
| CN109825169A (en) * | 2019-02-20 | 2019-05-31 | 上海振华重工（集团）常州油漆有限公司 | One kind quick-drying zinc rich primer and its preparation method and application in anhydrous epoxy |
| CN111073467A (en) * | 2019-12-20 | 2020-04-28 | 浙江中杭新材料科技有限公司 | Corrosion-resistant composite protective layer material for neodymium iron boron |
| CN115181445A (en) * | 2022-06-09 | 2022-10-14 | 中建材苏州防水研究院有限公司 | Modified zinc powder suitable for two-component water-based epoxy zinc-rich coating and preparation method and application thereof |
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| CN103183621A (en) * | 2011-12-30 | 2013-07-03 | 王炜 | Calix[4]arene derivative, non-phosphorus scale inhibition, dispersion and corrosion inhibition agent, preparation method and application |
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| CN104774526A (en) * | 2015-01-22 | 2015-07-15 | 南京长江涂料有限公司 | Room temperature-curing two-component aqueous epoxy zinc-rich primer |
| CN104789090A (en) * | 2015-04-22 | 2015-07-22 | 中航百慕新材料技术工程股份有限公司 | Flexible epoxy anticorrosive primer and preparation method thereof |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101525745A (en) * | 2009-04-03 | 2009-09-09 | 四川大学 | Metal surface treatment agent and printed wiring board with protecting film formed thereby |
| CN103183621A (en) * | 2011-12-30 | 2013-07-03 | 王炜 | Calix[4]arene derivative, non-phosphorus scale inhibition, dispersion and corrosion inhibition agent, preparation method and application |
| CN103725234A (en) * | 2013-12-03 | 2014-04-16 | 常州大学 | Calixarene modified attapulgite/urea resin composite adhesive and preparation method thereof |
| CN104371505A (en) * | 2014-12-10 | 2015-02-25 | 成都拜迪新材料有限公司 | Waterborne-epoxy micaceous-iron-oxide intermediate coat and preparation method thereof |
| CN104774526A (en) * | 2015-01-22 | 2015-07-15 | 南京长江涂料有限公司 | Room temperature-curing two-component aqueous epoxy zinc-rich primer |
| CN104789090A (en) * | 2015-04-22 | 2015-07-22 | 中航百慕新材料技术工程股份有限公司 | Flexible epoxy anticorrosive primer and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106336772A (en) * | 2016-08-26 | 2017-01-18 | 李水金 | Waterborne epoxy resin primer |
| CN108034294A (en) * | 2017-11-14 | 2018-05-15 | 广州擎天材料科技有限公司 | A kind of zinc slurry and its cladding process for being used to improve the secondary adhesive force of water-thinned epoxy zinc-rich coating |
| CN107987671A (en) * | 2017-12-11 | 2018-05-04 | 湖南太子化工涂料有限公司 | A kind of epoxy primer and its preparation method and application |
| CN109825169A (en) * | 2019-02-20 | 2019-05-31 | 上海振华重工（集团）常州油漆有限公司 | One kind quick-drying zinc rich primer and its preparation method and application in anhydrous epoxy |
| CN111073467A (en) * | 2019-12-20 | 2020-04-28 | 浙江中杭新材料科技有限公司 | Corrosion-resistant composite protective layer material for neodymium iron boron |
| CN115181445A (en) * | 2022-06-09 | 2022-10-14 | 中建材苏州防水研究院有限公司 | Modified zinc powder suitable for two-component water-based epoxy zinc-rich coating and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105838193B (en) | 2018-11-20 |
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