CN104263045A - Water-based epoxy anticorrosive paint and preparation method thereof - Google Patents
Water-based epoxy anticorrosive paint and preparation method thereof Download PDFInfo
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- CN104263045A CN104263045A CN201410480505.2A CN201410480505A CN104263045A CN 104263045 A CN104263045 A CN 104263045A CN 201410480505 A CN201410480505 A CN 201410480505A CN 104263045 A CN104263045 A CN 104263045A
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Abstract
The invention discloses a water-based epoxy anticorrosive paint which comprises an epoxy resin, composite ferrotitanium powder, silicon carbide, aluminum tripolyphosphate, iron oxide red, talcum powder, mica powder, deionized water, butyl acrylate, a curing agent, a wetting agent, a dispersing agent, a defoaming agent and a corrosion inhibitor. The preparation method comprises the following steps: adding the deionized water, wetting agent, dispersing agent and defoaming agent into a dispersion machine according to the preset mass ratio, sequentially adding the composite ferrotitanium powder, aluminum tripolyphosphate, iron oxide red, talcum powder and mica powder to a sand mill, adding the epoxy resin and butyl acrylate, sending into a stirring kettle, heating and stirring for dispersion, adding the curing agent, silicon carbide and corrosion inhibitor, and thoroughly mixing. The water-based epoxy anticorrosive paint disclosed by the invention is safe and environment-friendly, and has obviously higher physical, chemical and construction properties than the existing paint; the coated film does not need thermosetting; and the water-based epoxy anticorrosive paint is suitable for corrosion protection of substrates incapable of being heated.
Description
Technical field
The invention belongs to technical field of coatings, relate to a kind of protective coating and preparation method thereof, specifically a kind of water corrosion-resistant epoxy paint and preparation method thereof.
Background technology
Epoxy resin has that VOC content is lower, free from extraneous odour, do not burn and low toxin, kind is more, excellent performance, and be widely used in coating material production, because water-borne coatings has the trend progressively replacing organic solvent type coatings, but it is high also to there is electric conductivity in water-borne coatings, easily make metallic corrosion, easily occur to dodge rust problem in dried coating film process.Therefore, for the water-borne coatings of metal, mostly need to add rust-preventive agent.In order to the anticorrosion ability played, traditional way adds anticorrosive agent inside coating, such as red lead, lead powder, and zinc, barium, plumbous chromic salt etc.The coating that these pigment are modulated into has good non-corrosibility, is effective anticorrosive.But these additives itself are poisonous, to HUMAN HEALTH and environment structure serious pollution and threat.Current epoxy coating is solvent type, seriously polluted mostly, and therefore aqueous epoxide resin paint becomes the focus of countries nowadays research.Although the cost of material of aqueous epoxy coating is higher, production technique is more complicated, along with the raising of coating industry door, does not utilize and applies.
Summary of the invention
Technical problem to be solved by this invention is, for overcoming the shortcoming of prior art, provide a kind of water corrosion-resistant epoxy paint and preparation method thereof, it has very strong corrosion resistance, and coating application is convenient simultaneously, and following process is without the need to the demoulding etc.
In order to solve above technical problem, the invention provides a kind of water corrosion-resistant epoxy paint, its composition is as follows by mass parts:
Epoxy resin 15-35 part
Composite iron-titanium powder 10-20 part
Silicon carbide 2-15 part
Aluminium triphosphate 20-28 part
Red iron oxide 10-20 part
Talcum powder 15-25 part
Mica powder 2-8 part
Deionized water 20-30 part
Butyl acrylate 4-6 parts
Solidifying agent 12-25 part.
Technical scheme of the present invention is further defined to, above-mentioned water corrosion-resistant epoxy paint, and described epoxy resin is E-51 type epoxy resin; Described solidifying agent is diethylenetriamine.Described composite iron-titanium powder is the composite iron-titanium powder of order number >=500.The weight ratio of described composite iron-titanium powder, aluminium triphosphate, red iron oxide, talcum powder, mica powder: 15:25:15:20:5.
Above-mentioned water corrosion-resistant epoxy paint, also comprises:
Wetting agent 0.4-0.6 part
Dispersion agent 0.4-0.8 part
Defoamer 0.2-0.5 part
Inhibiter 0.2-0.5 part.
A preparation method for water corrosion-resistant epoxy paint, making method step is as follows:
Step (1): deionized water, wetting agent, dispersion agent, defoamer are added dispersion machine by the mass ratio preset, dispersion machine speed 300r/min is set,
Step (2): add composite iron-titanium powder successively, aluminium triphosphate, red iron oxide, talcum powder, mica powder deliver to sand mill and be dispersed to fineness≤25um, stirring velocity 500r/min, churning time 35 ~ 45min;
Step (3): add epoxy resin, butyl acrylate delivers in stirring tank and heat and carry out dispersed with stirring, stirring velocity 400 ~ 700r/min, Heating temperature 120 ~ 135 DEG C, churning time 40 ~ 60min, make emulsion liquid, adjustment pH value to 8 ~ 9;
Step (4): add solidifying agent, silicon carbide, inhibiter fully mix, high-speed stirring 30 ~ 45min, stirring velocity 1200 ~ 1500r/min, can obtain water corrosion-resistant epoxy paint.
The preparation method of above-mentioned water corrosion-resistant epoxy paint, is further defined to:
Stirring velocity 500r/min, churning time 40min in described step (2); Stirring velocity 600r/min, Heating temperature 130 DEG C, churning time 50min in described step (3), regulate pH value to 8.5; Described step (4) high speed stirs 40min, stirring velocity 1400r/min.
The invention has the beneficial effects as follows: water corrosion-resistant epoxy paint safety and environmental protection provided by the invention, and more existing coating physics, chemistry, workability all have obvious lifting, film, without the need to being heating and curing, is applicable to the anticorrosion of the ground that can not heat.Raw material required for the present invention easily obtains, and production technique is simple, and easy construction, easy handling, added value of product is high, of many uses.
Embodiment
Below by way of specific embodiment, the specific embodiment of the present invention is described in further detail.
Diethylenetriamine selected by solidifying agent in the present invention, epoxy resin selects E-51 type epoxy resin, composite iron-titanium powder to be order number be 500 composite iron-titanium powder, wetting agent is sodium alkyl sulfate, dispersion agent is ammonium polyacrylate salt, defoamer is modified polyorganosiloxane base polymer, and inhibiter is poly aspartic acid.
embodiment 1
The present embodiment provides a kind of water corrosion-resistant epoxy paint, and its composition is as follows by mass parts:
Epoxy resin 20 parts
Composite iron-titanium powder 15 parts
10 parts, silicon carbide
Aluminium triphosphate 25 parts
Red iron oxide 15 parts
Talcum powder 20 parts
Mica powder 5 parts
Deionized water 25 parts
Butyl acrylate 5 parts
15 parts, solidifying agent
Wetting agent 0.5 part
Dispersion agent 0.6 part
Defoamer 0.4 part
Inhibiter 0.3 part.
Preparation process is as follows:
Step (1): deionized water, wetting agent, dispersion agent, defoamer are added dispersion machine by the mass ratio preset, dispersion machine speed 300r/min is set,
Step (2): add composite iron-titanium powder successively, aluminium triphosphate, red iron oxide, talcum powder, mica powder deliver to sand mill and be dispersed to fineness≤25um, stirring velocity 500r/min, churning time 40min;
Step (3): add epoxy resin, butyl acrylate delivers in stirring tank and heat and carry out dispersed with stirring, stirring velocity 600r/min, Heating temperature 130 DEG C, churning time 50min, make emulsion liquid, adjustment pH value to 8.5;
Step (4): add solidifying agent, silicon carbide, inhibiter fully mix, high-speed stirring 40min, stirring velocity 1400r/min, can obtain water corrosion-resistant epoxy paint.
embodiment 2
The present embodiment provides a kind of water corrosion-resistant epoxy paint, and its composition is as follows by mass parts:
Epoxy resin 15 parts
Composite iron-titanium powder 10 parts
2 parts, silicon carbide
Aluminium triphosphate 20 parts
Red iron oxide 10 parts
Talcum powder 15 parts
Mica powder 2 parts
Deionized water 20 parts
Butyl acrylate 4 parts
12 parts, solidifying agent
Wetting agent 0.4 part
Dispersion agent 0.4 part
Defoamer 0.2 part
Inhibiter 0.2 part.
Preparation process is as follows:
Step (1): deionized water, wetting agent, dispersion agent, defoamer are added dispersion machine by the mass ratio preset, dispersion machine speed 300r/min is set,
Step (2): add composite iron-titanium powder successively, aluminium triphosphate, red iron oxide, talcum powder, mica powder deliver to sand mill and be dispersed to fineness≤25um, stirring velocity 500r/min, churning time 30min;
Step (3): add epoxy resin, butyl acrylate delivers in stirring tank and heat and carry out dispersed with stirring, stirring velocity 400r/min, Heating temperature 120 DEG C, churning time 40min, make emulsion liquid, adjustment pH value to 8;
Step (4): add solidifying agent, silicon carbide, inhibiter fully mix, high-speed stirring 30min, stirring velocity 1200r/min, can obtain water corrosion-resistant epoxy paint.
embodiment 3
The present embodiment provides a kind of water corrosion-resistant epoxy paint, and its composition is as follows by mass parts:
Epoxy resin 35 parts
Composite iron-titanium powder 20 parts
15 parts, silicon carbide
Aluminium triphosphate 28 parts
Red iron oxide 20 parts
Talcum powder 25 parts
Mica powder 8 parts
Deionized water 30 parts
Butyl acrylate 6 parts
25 parts, solidifying agent
Wetting agent 0.6 part
Dispersion agent 0.8 part
Defoamer 0.5 part
Inhibiter 0.5 part.
Preparation process is as follows:
Step (1): deionized water, wetting agent, dispersion agent, defoamer are added dispersion machine by the mass ratio preset, dispersion machine speed 300r/min is set,
Step (2): add composite iron-titanium powder successively, aluminium triphosphate, red iron oxide, talcum powder, mica powder deliver to sand mill and be dispersed to fineness≤25um, stirring velocity 500r/min, churning time 45min;
Step (3): add epoxy resin, butyl acrylate delivers in stirring tank and heat and carry out dispersed with stirring, stirring velocity 700r/min, Heating temperature 135 DEG C, churning time 60min, make emulsion liquid, adjustment pH value to 9;
Step (4): add solidifying agent, silicon carbide, inhibiter fully mix, high-speed stirring 45min, stirring velocity 1500r/min, can obtain water corrosion-resistant epoxy paint.
A kind of water corrosion-resistant epoxy paint of the present invention is sprayed on metallic surface and forms coating, coat-thickness is 70um, carries out related physical Performance Detection, and data are as following table 1:
Table 1 Metal surface anti-corrosion coating property of the present invention detects data
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Snappiness | 1 grade | 1 grade | 2 grades |
| Shock-resistance | 35cm | 45cm | 50cm |
| Hardness | 0.52 | 0.55 | 0.59 |
| Sticking power | 1 grade | 1 grade | 1 grade |
| Do solid work the time | 20h | 20h | 20h |
| Salt fog resistance | 256h | 260h | 268h |
| Resistance to salt water | 332h | 348h | 356h |
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (9)
1. a water corrosion-resistant epoxy paint, is characterized in that, its composition is by following mass fraction composition:
Epoxy resin 15-35 part
Composite iron-titanium powder 10-20 part
Silicon carbide 2-15 part
Aluminium triphosphate 20-28 part
Red iron oxide 10-20 part
Talcum powder 15-25 part
Mica powder 2-8 part
Deionized water 20-30 part
Butyl acrylate 4-6 parts
Solidifying agent 12-25 part.
2. water corrosion-resistant epoxy paint according to claim 1, is characterized in that: described epoxy resin is E-51 type epoxy resin; Described solidifying agent is diethylenetriamine.
3. water corrosion-resistant epoxy paint according to claim 1, is characterized in that: described composite iron-titanium powder is the composite iron-titanium powder of order number >=500.
4. water corrosion-resistant epoxy paint according to claim 1, is characterized in that: the weight ratio of described composite iron-titanium powder, aluminium triphosphate, red iron oxide, talcum powder, mica powder: 15:25:15:20:5.
5. water corrosion-resistant epoxy paint according to claim 1, is characterized in that: also comprise
Wetting agent 0.4-0.6 part
Dispersion agent 0.4-0.8 part
Defoamer 0.2-0.5 part
Inhibiter 0.2-0.5 part.
6. water corrosion-resistant epoxy paint according to claim 5, is characterized in that, its composition is as follows by mass parts:
Epoxy resin 20 parts
Composite iron-titanium powder 15 parts
10 parts, silicon carbide
Aluminium triphosphate 25 parts
Red iron oxide 15 parts
Talcum powder 20 parts
Mica powder 5 parts
Deionized water 25 parts
Butyl acrylate 5 parts
15 parts, solidifying agent
Wetting agent 0.5 part
Dispersion agent 0.6 part
Defoamer 0.4 part
Inhibiter 0.3 part.
7. a preparation method for water corrosion-resistant epoxy paint, is characterized in that, making method step is as follows:
Step (1): deionized water, wetting agent, dispersion agent, defoamer are added dispersion machine by the mass ratio preset, dispersion machine speed 300r/min is set,
Step (2): add composite iron-titanium powder successively, aluminium triphosphate, red iron oxide, talcum powder, mica powder deliver to sand mill and be dispersed to fineness≤25um, stirring velocity 500r/min, churning time 35 ~ 45min;
Step (3): add epoxy resin, butyl acrylate delivers in stirring tank and heat and carry out dispersed with stirring, stirring velocity 400 ~ 700r/min, Heating temperature 120 ~ 135 DEG C, churning time 40 ~ 60min, make emulsion liquid, adjustment pH value to 8 ~ 9;
Step (4): add solidifying agent, silicon carbide, inhibiter fully mix, high-speed stirring 30 ~ 45min, stirring velocity 1200 ~ 1500r/min, can obtain water corrosion-resistant epoxy paint.
8. the preparation method of water corrosion-resistant epoxy paint according to claim 5, is characterized in that, described epoxy resin is E-51 type epoxy resin; Described solidifying agent is diethylenetriamine.
9. the preparation method of water corrosion-resistant epoxy paint according to claim 5, is characterized in that, making method step is as follows: stirring velocity 500r/min, churning time 40min in described step (2); Stirring velocity 600r/min, Heating temperature 130 DEG C, churning time 50min in described step (3), regulate pH value to 8.5; Described step (4) high speed stirs 40min, stirring velocity 1400r/min.
Priority Applications (1)
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| CN201410480505.2A CN104263045A (en) | 2014-09-19 | 2014-09-19 | Water-based epoxy anticorrosive paint and preparation method thereof |
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| CN201410480505.2A CN104263045A (en) | 2014-09-19 | 2014-09-19 | Water-based epoxy anticorrosive paint and preparation method thereof |
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Cited By (7)
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| CN104761999A (en) * | 2015-04-16 | 2015-07-08 | 许汉池 | High-strength wear-resistant water-based mixed coating |
| CN104774531A (en) * | 2015-04-16 | 2015-07-15 | 许汉池 | Method for enhancing strength and wear resistance of water-based paint |
| CN105545541A (en) * | 2015-12-04 | 2016-05-04 | 青岛讯达捷电子科技有限公司 | High-stability engine intake manifold branch pipe |
| CN106189673A (en) * | 2016-08-15 | 2016-12-07 | 西安鸿钧睿泽新材料科技有限公司 | A kind of acidproof nano anticorrosive coating and preparation method thereof |
| CN106752207A (en) * | 2016-12-21 | 2017-05-31 | 苏州劲元油压机械有限公司 | A kind of epoxy anticorrosion fire-resistant fluid pressure pipe and preparation method thereof |
| CN112157155A (en) * | 2020-08-21 | 2021-01-01 | 合肥常青机械股份有限公司 | Thick plate punch forming process for producing automobile parts |
| CN112852259A (en) * | 2021-01-12 | 2021-05-28 | 广西建工集团建筑产业投资有限公司 | Steel bar anticorrosive paint for autoclaved aerated concrete slab and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104761999A (en) * | 2015-04-16 | 2015-07-08 | 许汉池 | High-strength wear-resistant water-based mixed coating |
| CN104774531A (en) * | 2015-04-16 | 2015-07-15 | 许汉池 | Method for enhancing strength and wear resistance of water-based paint |
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| CN106752207A (en) * | 2016-12-21 | 2017-05-31 | 苏州劲元油压机械有限公司 | A kind of epoxy anticorrosion fire-resistant fluid pressure pipe and preparation method thereof |
| CN112157155A (en) * | 2020-08-21 | 2021-01-01 | 合肥常青机械股份有限公司 | Thick plate punch forming process for producing automobile parts |
| CN112852259A (en) * | 2021-01-12 | 2021-05-28 | 广西建工集团建筑产业投资有限公司 | Steel bar anticorrosive paint for autoclaved aerated concrete slab and preparation method thereof |
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