CN106800861B - A kind of Chrome-free high solid bi-component epoxy priming paint and preparation method thereof - Google Patents
A kind of Chrome-free high solid bi-component epoxy priming paint and preparation method thereof Download PDFInfo
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- CN106800861B CN106800861B CN201611224306.0A CN201611224306A CN106800861B CN 106800861 B CN106800861 B CN 106800861B CN 201611224306 A CN201611224306 A CN 201611224306A CN 106800861 B CN106800861 B CN 106800861B
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- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
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- C09D5/08—Anti-corrosive paints
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- 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
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C08L2205/00—Polymer mixtures characterised by other features
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Abstract
The present invention provides a kind of Chrome-free high solid bi-component epoxy priming paint and preparation method thereof, the Chrome-free high solid bi-component epoxy priming paint is matched by component A and B component to be combined into, the weight ratio of the component A and B component is 100:30-40, the Chrome-free high solid bi-component epoxy priming paint, it is that one kind is mainly used in steel, iron, the substrate surfaces such as aluminium, dual-use industry aircraft, equipment part environmental protection and antiseptic property require harsh bi-component Chrome-free high solids epoxy priming paint, with excellent salt fog resistance, filiform corrosion resistance, water resistance, resistance to machine oil plant and outstanding adhesive force；Preparation method is simple, is suitble to the needs of scale industrial production.
Description
Technical field
The present invention relates to a kind of coating and preparation method thereof, especially a kind of Chrome-free high solid bi-component epoxy priming paint and its
Preparation method.
Background technique
The industrial epoxy primer antirust for being commonly used for anti-corrosion of metal especially improved corrosion must use chromate-containing face
Material, but the especially chromyl chromate such as zinc chromate of discovered in recent years chromate has strong carcinogenesis to human body, and
And even if make paint film salt fog resistance made of antirust, anti-corrosive pigment only 1000 hours using zinc chromate.Common epoxy primer one
As solid content be 50% or so, volatile organic solvent is up to 50%；Since viscosity is higher, molecular weight is larger, when construction
It needs to be blended into organic solvent again and be let down, its organic solvent volatile matter is caused to be up to 60-65%.Solvent volatilization pollutes the environment,
Construction personnel's health, inflammable is endangered, and does not meet state compulsory standard GB18581-2009 indoor decorating and refurnishing materials
The requirement of middle limits of harmful substances, volatile organic solvent is one of major pollutants in Indoor Air Pollution with outdoor Air Pollution source, in the sun
It, can also be because photochemical other than the component part Organic aerosol that can generate PM2.5 under the irradiation of light in conjunction with oxynitrides
It learns reaction and generates ozone, be one of outstanding feature of photochemical fog.
Summary of the invention
Technical problem to be solved by the present invention lies in a kind of Chrome-free high solid bi-component epoxy priming paint is provided, although being free of
Chromate but containing harmless environment friendly corrosion protection pigment.
Another technical problem to be solved by this invention is to provide the system of above-mentioned Chrome-free high solid bi-component epoxy priming paint
Preparation Method.
In order to solve the above technical problems, the technical scheme is that
A kind of Chrome-free high solid bi-component epoxy priming paint is matched by component A and B component and is combined into, the component A and B component
Weight ratio be 100:30-40, wherein
The component A is grouped as by following groups, based on its parts by weight:
The Chrome-free rust resisting pigment is the polyphosphoric acid aluminium salt by zero content of beary metal: polyphosphoric acid strontium salt: phosphoramidic acid magnesium salts:
Nano preservative ZT-719 is compounded by weight 2:1:1:1；
The filler is talcum powder；
The Ricinate is macromolecule polyurethane type Ricinate AFCONA-4201；
The defoaming agent is organic silicon polyether class defoaming agent AFCONA-2722；
The thickening anti-settling agent is polyamide wax-A630-20X；
The anti-flood and anti-float agent is LHP-96 acrylic acid anti-flood and anti-float agent；
The epoxy active diluent is polypropylene glycol diglycidyl ether GE-24；
The epoxy non-activated thinner is made of dimethylbenzene, butanol and propylene glycol monomethyl ether, the dimethylbenzene, butanol and third
The weight ratio of glycol methyl ether is 2:1:1.
Preferably, the weight ratio of above-mentioned Chrome-free high solid bi-component epoxy priming paint, the component A and B component is 100:35.
0- is added after when in use mixing the component A with B component in above-mentioned Chrome-free high solid bi-component epoxy priming paint
The epoxy inactive diluents dilution agent of 20% compounding, placement can brush for about 30 minutes or spraying application.
The preparation method of above-mentioned Chrome-free high solid bi-component epoxy priming paint, the specific steps are as follows:
The preparation of I .A component:
(1) formula ratio is pressed by low-molecular-weight epoxy resin 1/2, Ricinate, defoaming agent agent, anti-flood and anti-float agent, increasing
Thick anti-settling agent, epoxy non-activated thinner 10-30 are sequentially added in stirring container and are stirred evenly, 600-800 revs/min of middling speed dispersion
It 10 minutes, sequentially adds Chrome-free rust resisting pigment, coloring pigment titanium dioxide, 1200-1600 revs/min of high speed dispersion of filler 10 and divides
Clock；
(2) mixed slurry addition grinder is ground to after fineness reaches 40 μm or less and pours into paint mixing tank；
(3) remaining 1/2 dosage low-molecular-weight epoxy resin liquid, epoxy active diluent is added, stirs evenly, adjustment is solid
System is at component A；
II, in prescription ratio by component A and B component polyamide liquid curing agent pack respectively to get.
The beneficial effects of the present invention are:
Above-mentioned Chrome-free high solid bi-component epoxy priming paint is that one kind is mainly used in the substrate surfaces such as steel, iron, aluminium, military
Harsh bi-component Chrome-free high solids epoxy priming paint is required with civilian industry aircraft, equipment part environmental protection and antiseptic property, is had
Excellent salt fog resistance, filiform corrosion resistance, water resistance, resistance to machine oil plant and outstanding adhesive force；Preparation method is simple,
It is suitble to the needs of scale industrial production.
Specifically, as matrix resin-low-molecular-weight epoxy resin of the invention have epoxide number is high, molecular weight is small,
Viscosity is low, the high feature strong to various metals substrate adhesive force of hardness, can grind mashing, strong operability, and curing agent uses
After the solidification of polyamide bi-component, chemical resistance is outstanding, and due to epoxide number difference, hydroxy radical content is different, different molecular weight
Cross linking of epoxy resin degree is variant.Due to epoxide number difference, molecular structure is different, and different epoxy active diluents are to asphalt mixtures modified by epoxy resin
The dilution effect of rouge is variant, cooperates manufactured paint film property difference very big with curing agent so as to cause after dilution, present invention warp
A large amount of experiment work is crossed, preferably molecular weight is lower out, the higher epoxy resin of epoxide number, and cooperates bifunctionality and asphalt mixtures modified by epoxy resin
The good reactive diluent of lipid phase capacitive, and preferably go out the polyamide that molecular weight is suitable for and make curing agent, the paint film after solidification
With the excellent comprehensive performances such as physical and chemical, corrosion-resistant.
Gained Chrome-free high solid bi-component epoxy priming paint solid content is up to 68% or more, VOC lower than U.S. Military Standard
420g/L requirement, there are excellent anti-corrosive properties, can not only long-term resistant to many machine oil plant, and water-fast, high temperature resistant lubrication
Oil, resistance can reach the majority parameters in American army mark mil-C-27725B aviation fuel tank paint.The double groups of Chrome-free high solid
Divide epoxy primer salt fog resistance to be up to 4000 hours, is mainly used in inside and outside fuel tanker under severe corrosive environment, and to environmental protection
It is required that higher apparatus coating, the salt fog resistance than general epoxy anticorrosive paint improves several times, is particularly suitable for marine and close
The protection of seashore metal equipment can significantly extend the coating period, save painting cost, while its higher solid content can also
The corresponding environmentally friendly disbursement for mitigating coating enterprise.
Specific embodiment
Technical solution of the present invention is further described combined with specific embodiments below.
Embodiment 1
A kind of Chrome-free high solid bi-component epoxy priming paint, by component A and B component with being combined into, the component A is by following groups
It is grouped as, based on its parts by weight:
The preparation method of the Chrome-free high solid bi-component epoxy priming paint, the specific steps are as follows:
The preparation of I .A component:
(1) formula ratio is pressed by low-molecular-weight epoxy resin 1/2, Ricinate, defoaming agent, anti-flood and anti-float agent, thickening
Anti-settling agent, non-activated thinner are sequentially added in stirring container and are stirred evenly, and 600-800 revs/min of middling speed is dispersed 10 minutes, then according to
Secondary addition Chrome-free rust resisting pigment, coloring pigment, 1200-1600 revs/min of high speed dispersion of filler 10 minutes；
(2) mixed slurry addition grinder is ground to after fineness reaches 40 μm or less and pours into paint mixing tank；
(3) remaining 1/2 dosage low-molecular-weight epoxy resin liquid, epoxy active diluent is added, stirs evenly, uses epoxy
Non-activated thinner adjustment solid is greater than 68% and component A is made；
II, in prescription ratio by component A and B component polyamide liquid curing agent pack respectively to get.
Embodiment 2
The preparation method of above-mentioned Chrome-free high solid bi-component epoxy priming paint is according to preparation method described in embodiment 1.
Embodiment 3
The preparation method of above-mentioned Chrome-free high solid bi-component epoxy priming paint is according to preparation method described in embodiment 1.
Embodiment 4
The preparation method of above-mentioned Chrome-free high solid bi-component epoxy priming paint is according to preparation method described in embodiment 1.
Chrome-free rust resisting pigment described in above-described embodiment 1-4 is the polyphosphoric acid aluminium salt by zero content of beary metal: polyphosphoric acid strontium
Salt: phosphoramidic acid magnesium salts: nano preservative ZT-719 is compounded by weight 2:1:1:1, is both significantly increased
The salt fog resistance of paint film, but almost heavy metal free is added, and using the requirement both met to environmental protection, also provides enhanced to spray
The personal protection of lacquerer people；The filler is talcum powder；The Ricinate is macromolecule polyurethane type Ricinate
AFCONA-4201；The defoaming agent is organic silicon polyether class defoaming agent AFCONA-2722；The thickening anti-settling agent is polyamide
Wax-A630-20X；The anti-flood and anti-float agent is LHP-96 acrylic acid anti-flood and anti-float agent；The epoxy active diluent is
Polypropylene glycol diglycidyl ether GE-24；The epoxy non-activated thinner is made of dimethylbenzene, butanol and propylene glycol monomethyl ether,
The weight ratio of the dimethylbenzene, butanol and propylene glycol monomethyl ether is 2:1:1.
The paint film comprehensive performance test data of above-described embodiment 1-4 see the table below 1.
Table 1
Each component raw material described in one of embodiment 1-4 can be purchased to obtain in the market, and wherein primary raw material is as follows:
Low-molecular-weight epoxy resin: Hensel Mann, Mai Tu company, Wuxi resin processing plant
Epoxy active diluent: Hensel Mann, Mai Tu company
Polyamide curing agent: Hensel Mann, Mai Tu company, gas companies
Anti-corrosion paint: hydration polyphosphoric acid aluminium, hydration polyphosphoric acid strontium: Hai Bohe company；ZT-719: the way company in Beijing；Ammonia
Base magnesium phosphate: Beijing Teng Xinsheng company；
Coloring pigment: titanium dioxide: E.I.Du Pont Company
Filler: talcum powder: Dashiqiao powder factory
Ricinate, defoaming agent: Haimen Efka receives company
Polyamide wax anti-settling agent, anti-floating auxiliary agent: Supreme Being Si Balong company
Prescription screening, is shown in Table 2, table 3.
Table 2 compares for priming paint film properties after the epoxy resin cure of different molecular weight
Table 3E51 epoxy resin solidify with different curing agent after priming paint film properties compared with
In preferred low-molecular-weight epoxy resin, epoxy active diluent, polyamide curing agent, various auxiliary agents, pigments and fillers
Divide several groups of tests later: being 1. separately added into above-mentioned four kinds of rust resisting pigments of identical weight；2. the polyphosphoric acid aluminium of each 1/2 weight and more
Strontium phosphate；The polyphosphoric acid aluminium and phosphoramidic acid magnesium of each 1/2 weight；The polyphosphoric acid aluminium and nano preservative ZT-719 of each 1/2 weight；
The polyphosphoric acid strontium and phosphoramidic acid magnesium of each 1/2 weight；The polyphosphoric acid strontium and nano preservative ZT-719 of each 1/2 weight；Each 1/2 weight
The phosphoramidic acid magnesium and nano preservative ZT-719 of amount；3. 2/3 polyphosphoric acid aluminium and 1/3 polyphosphoric acid strontium；2/3 polyphosphoric acid aluminium and 1/3
Phosphoramidic acid magnesium；2/3 polyphosphoric acid aluminium and 1/3 nano preservative ZT-719；2/3 polyphosphoric acid strontium and 1/3 phosphoramidic acid magnesium；More than 2/3
Strontium phosphate and 1/3 nano preservative ZT-719；It is 2/3 phosphoramidic acid magnesium and 1/3 nano preservative ZT-719 and polyphosphoric acid aluminium, more
Strontium phosphate, phosphoramidic acid magnesium ZT-719 are cooperated by different proportion, therefrom find out classic rust resisting pigment proportion.
After comparing different Ricinates, preferably macromolecule polyurethane type Ricinate AFCONA-4201,
Long polymer chain and epoxy resin compatibility in its structure, polyurethane polar group contacts anchoring with pigment, to make it have
Outstanding wet dispersibility.
After comparing different defoaming agents, preferably contain in its structure of organic silicon polyether class defoaming agent AFCONA-2722
Deaeration is responsible in silicon part, and foam inhibition and defoaming are responsible in not siliceous part, and vesicle, micro- is eliminated in bi-component epoxy high solid priming paint
Bubble and pin hole make surface of the paint film thickness uniformity, have effectively ensured giving full play to for paint film antiseptic property.
It compares the classes such as modified alta-mud, polyethylene wax, polyamide wax anti-settling agent and preferably provides good result of prevention
Polyamide wax-A630-20X.It can directly add, manufactured Chrome-free epoxy primer precipitating is soft, easily stirs evenly, and thixotropy is suitable for making
The technical program has good rheological characteristic and storage stability, improves the flow of paint film, can control the spraying of paint film thick
Degree and levelability.
Different anti-floating auxiliary agents is compared, preferably LHP-96 acrylic acid anti-flood and anti-float agent, with this technology side
Case epoxy resin compatibility is good, can prevent the floating of pigment significantly, ensure that surface of the paint film is flat and smooth, colourless
Difference.
The dissolving power and spraying effect for comparing different solvents, filter out propylene glycol monomethyl ether, propandiol butyl ether, butanol, two
Toluene equal solvent carries out cross-mixing compounding, and the different proportion of solvent wields influence very greatly to surface of the paint film state and performance, multiple
It is ill that orange peel, shrinkage cavity and pin hole etc. are also easy to produce with bad surface of the paint film, finally determine dimethylbenzene: butanol through multiple repetition test:
Propylene glycol monomethyl ether=2:1:1, dilutes priming paint, and the smooth zero defect of surface of the paint film has ensured painting quality, mechanical performance and resistance to Jie
Matter performance is best.
It is above-mentioned a kind of Chrome-free high solid bi-component epoxy priming paint and preparation method thereof is carried out referring to embodiment it is detailed
Description, is illustrative without being restrictive, several embodiments can be enumerated according to limited range, therefore do not departing from
Change and modification under present general inventive concept should belong within protection scope of the present invention.
Claims (3)
1. a kind of Chrome-free high solid bi-component epoxy priming paint, it is characterised in that: matched by component A and B component and is combined into, the A group
Dividing with the weight ratio of B component is 100:30-40, wherein
The component A is grouped as by following groups, based on its parts by weight:
The Chrome-free rust resisting pigment is the polyphosphoric acid aluminium salt by zero content of beary metal: polyphosphoric acid strontium salt: phosphoramidic acid magnesium salts: nanometer
Preservative ZT-719 is compounded by weight 2:1:1:1；
The filler is talcum powder；
The Ricinate is macromolecule polyurethane type Ricinate AFCONA-4201；
The defoaming agent is organic silicon polyether class defoaming agent AFCONA-2722；
The thickening anti-settling agent is polyamide wax-A630-20X；
The anti-flood and anti-float agent is LHP-96 acrylic acid anti-flood and anti-float agent；
The epoxy active diluent is polypropylene glycol diglycidyl ether GE-24；
The epoxy non-activated thinner is made of dimethylbenzene, butanol and propylene glycol monomethyl ether, the dimethylbenzene, butanol and propylene glycol
The weight ratio of methyl ether is 2:1:1.
2. Chrome-free high solid bi-component epoxy priming paint according to claim 1, it is characterised in that: the component A and B component
Weight ratio be 100:35.
3. the preparation method of Chrome-free high solid bi-component epoxy priming paint described in claim 1, it is characterised in that: specific steps are such as
Under:
The preparation of I .A component:
(1) by formula ratio that low-molecular-weight epoxy resin liquid 1/2, Ricinate, defoaming agent, anti-flood and anti-float agent, thickening is anti-
Heavy agent, epoxy non-activated thinner are sequentially added in stirring container and are stirred evenly, and 600-800 revs/min of middling speed is dispersed 10 minutes, then
Sequentially add Chrome-free rust resisting pigment, coloring pigment titanium dioxide, 1200-1600 revs/min of high speed dispersion of filler 10 minutes；
(2) mixed slurry addition grinder is ground to after fineness reaches 40 μm or less and pours into paint mixing tank；
(3) remaining 1/2 dosage low-molecular-weight epoxy resin liquid, epoxy active diluent is added, stirs evenly, adjusts solid system
At component A；
II, in prescription ratio by component A and B component polyamide liquid curing agent pack respectively to get.
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| CN107652737B (en) * | 2017-10-14 | 2020-02-18 | 华东理工大学 | Strontium phosphate-based nano-assembled spherical anticorrosive pigment |
| CN114761499A (en) | 2019-12-05 | 2022-07-15 | 阿克佐诺贝尔国际涂料股份有限公司 | Low solvent coating composition |
| CN112175502B (en) * | 2020-09-30 | 2022-08-30 | 海洋化工研究院有限公司 | Chromium-free high-solid-content polyurethane modified epoxy primer |
| CN113637392A (en) * | 2021-09-13 | 2021-11-12 | 湖南工业大学 | Flow coating epoxy primer and preparation method and application thereof |
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Application publication date: 20170606 Assignee: Tianjin lighthouse coating Co.,Ltd. Assignor: TIANJIN BEACON COATING INDUSTRY DEVELOPMENT Co.,Ltd. Contract record no.: X2021120000017 Denomination of invention: The invention relates to a chromium free high solid two-component epoxy primer and a preparation method thereof Granted publication date: 20190419 License type: Exclusive License Record date: 20210818 |
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