CN105086759A - Preparation method of low-VOC (volatile organic compound) solvent-free epoxy zinc-rich primer - Google Patents
Preparation method of low-VOC (volatile organic compound) solvent-free epoxy zinc-rich primer Download PDFInfo
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- CN105086759A CN105086759A CN201510514577.9A CN201510514577A CN105086759A CN 105086759 A CN105086759 A CN 105086759A CN 201510514577 A CN201510514577 A CN 201510514577A CN 105086759 A CN105086759 A CN 105086759A
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Abstract
The invention provides a preparation method of a low-VOC (volatile organic compound) solvent-free epoxy zinc-rich primer. The low-VOC solvent-free epoxy zinc-rich primer comprises a component A and a component B. The component A comprises the following ingredients in percentage by mass: 10-15% of E51 epoxy resin, 13-19% of epoxy reactive diluent, 3-5% of modified resin, 60-70% of zinc powder, 5-10% of environment-friendly zinc phosphate, 0.5-1% of salt-fog-resistant assistant, 0.2-0.3% of dispersing agent, 0.5-0.8% of polyamide wax powder, 0.2-0.3% of vapor-phase silicon dioxide, 0.1-0.2% of defoaming agent, 0.1-0.2% of leveling agent and 3-5% of hydrocarbon resin. The component B is composed of 100% of epoxy curing agent. The preparation technique comprises the following steps: dispersing, stirring, adding the modified resin while dispersing at high speed, adding the defoaming agent, leveling agent and salt-fog-resistant assistant while stirring, adding the hydrocarbon resin, stirring, and carrying out dry plate treatment. The product prepared by the method has the advantages of excellent constructability, excellent quick drying property, excellent corrosion resistance and excellent salt fog resistance (up to 3000 hours or above), and can easily form a high thickness; and the dry film thickness by one construction process can achieve 200 micrometers.
Description
Technical field
The present invention relates to painting field, refer to a kind of preparation method of low VOC non-solvent epoxy zinc rich primer especially.
Background technology
Along with country is more and more stricter to environmental requirement, country has successively put into effect new " environmental law ", " excise ", " effluent charge ", and phase Yingcheng City puts into effect production and the use of forbidding oil-based paints in order to administer PM2.5.Thus give water-miscible paint, the solvent-free coating of zero VOC discharge that waits has welcome spring, but the construction intrinsic for water-miscible paint and performance deficiency cannot solve at present, as: enter winter, the nearly all temperature in the north is all subzero, there is the phenomenon of freezing in water-miscible paint, cannot construct at all, and in south, temperature is too low, under the environment that humidity is excessive, water-miscible paint can not parch for a long time, have a strong impact on production efficiency and production friendship phase, and very easily there is sagging, shrinkage cavity, the morbid state such as pin hole, and how to make water-based reach more than 150 microns (builds) at disposable film forming thickness, this is the problem that current water-miscible paint still needs to overcome.When country goes into overdrive further to VOC discharge, water-miscible paint still cannot be satisfied with the market requirement, the new coating of needs is satisfied with the market requirement by coating industry.
Granted patent CN102533052A " a kind of solvent-free type epoxy zinc rich primer and preparation method thereof " its product sticking power, chemical resistant properties, salt fog resistance and the various aspects of performance such as impact, toughness compare shortcoming.
Summary of the invention
The present invention proposes a kind of preparation method of low VOC non-solvent epoxy zinc rich primer, and the product one-off construction build drawn can reach more than 200 microns, and antiseptic property is very excellent, and salt spray resistance can reach more than 3000 hours.
Technical scheme of the present invention is achieved in that a kind of preparation method of low VOC non-solvent epoxy zinc rich primer, comprise component A and B component, described component A comprises the following component according to massfraction meter: E51 epoxy resin 10-15%, epoxy active diluent 13-19%, modified resin 3-5%, zinc powder 60-70%, environmental protection zinc phosphate 5-10%, salt spray resistance auxiliary agent 0.5-1%, dispersion agent 0.2-0.3%, polyamide wax powder 0.5-0.8%, aerosil 0.2-0.3%, defoamer 0.1-0.2%, flow agent 0.1-0.2%, hydrocarbon resin 3-5%;
Described B component is the epoxy hardener of 100%;
Its preparation technology comprises:
Epoxy resin, epoxy active diluent, dispersion agent, polyamide wax powder add in production cylinder by step a., adopt 800-1000 rev/min of high speed dispersion 30-40 minute, guarantee that high speed dispersion temperature reaches 55-65 DEG C;
Step b. adopts 600-800 rev/min and adds modified resin, aerosil, environmental protection zinc phosphate, zinc powder while stirring, and adopt 800-1000 rev/min of high speed dispersion 20-30 minute, fineness controls within 80 microns;
Step c adopts 600-800 rev/min and adds defoamer, flow agent, salt spray resistance auxiliary agent while stirring, adopts 600-800 rev/min to stir 10-15 minute;
Steps d. add hydrocarbon resin, adopt 600-800 rev/min to stir 10-15 minute.
Step e. dry plate realizes: A:B=10:1 ratio mixed, epoxy active diluent is adopted to carry out the adjustment of working viscosity, spray viscosity is adjusted to 30-40S (T-4 cup, 25 DEG C), the dry plate film thickness of chemical resistance test, salt spray resistance, cold-hot circularity test controls at 90-100 μm, traditional performance test dry plate paint adopts spraying method to realize, and spray viscosity controls to control at 20-30 micron at 25-30S (T-4 cup, 25 DEG C) film thickness.
As preferably, described epoxy active diluent to shrink sweet ether, alcohol glycidyl ether, butylphenyl glycidyl ether, cardanol glycidyl ether, trimethylolpropane polyglycidylether, 1 for comprising butyl, the epoxy active diluent that 6-hexanediol diglycidyl ether, BDDE, polypropylene glycol diglycidyl ether etc. are dissimilar.
As preferably, described epoxy hardener may be selected to be phenolic aldehyde amine epoxy hardener, fatty amines epoxy hardener and alicyclic ring amine epoxy hardener.
Compared with prior art, the invention has the advantages that: invention broadly provides the standard that a kind of normal non-solvent epoxy system is discharged to reach low VOC, this coating VOC quantity discharged of making controls completely within 50mg/L, no matter and enter the winter in the north or southern wet season, capital has very excellent drying property, and disposable thickness can reach more than 200 microns (dry films) not sagging simultaneously.This product accords with each generic request that national environmental protection proposes completely, and to water quality, soil is all without any pollution, and this patent application protection domain comprises: railway bearing, railroad bridge, railway locomotive, highway bearing, highway bridge, petroleum storage tank, petroleum pipe line, natural gas line, oil equipment, passenger train, automobile, water conservancy project machinery, power equipment, power transmission and transforming equipment, airport steel construction, railway station steel construction, light-duty steel construction house, steel tower, chemical mechanical equipment, oil-well drilling equipment, equipment in Refining Units, oil refining steel construction, refinery steel construction, chemical industry and heavy chemical industry equipment facility, refinery appliance arrangement, workshop steel structure, subway installations and facilities, aircraft, motor-car, boats and ships, naval vessels, seaplane carrier, warship, nuclear power steel structure, nuclear power generating equipment facility, thermoelectricity steel construction, thermal power generating equipment facility, freight container, harbour machinery, engineering machinery, building machinery, excavator, shovel loader, tower machine, oil exploration equipment facility, petroleum transportation installations and facilities, Coal Chemical Industry steel construction, Coal Chemical Industry installations and facilities, environmental protection equipment facility, water treating equipment facility, sewage disposal device facility, signal equipment facility, hanging device facility, light rail installations and facilities, railway casting, the different field industries such as steelmaking equipment facility.
Product performance: this product has very excellent application property, quick-drying, very easily plays thickness, one-off construction build can reach more than 200 microns, antiseptic property is very excellent, and salt spray resistance can reach more than 3000 hours, has very excellent chemical resistance simultaneously.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
E51 epoxy resin: comprise all E51 based epoxy resins, the E51 solvent-free epoxy resin of the trade mark as different in the markets such as 828,128,628,827,815;
Epoxy active diluent: comprise butyl and to shrink sweet ether, alcohol glycidyl ether, butylphenyl glycidyl ether, cardanol glycidyl ether, trimethylolpropane polyglycidylether, 1, the epoxy active diluent that 6-hexanediol diglycidyl ether, BDDE, polypropylene glycol diglycidyl ether etc. are dissimilar.
Epoxy hardener: phenolic aldehyde amine epoxy hardener, fatty amines epoxy hardener, alicyclic ring amine epoxy hardener etc. all belong to the epoxy hardener protection domain of this patent of invention.
The raw material that following examples adopt is as follows:
E51 epoxy resin (618 U.S. step figure)
Modified resin (2602 xylene formaldehyde resin Jiangsu Specialty Chemical)
Epoxy active diluent (XY692 Anhui is newly far away)
Zinc powder (600 order zinc powder Yangzhou are two contains)
Environmental protection zinc phosphate (PZ20 ring fine jade chemical industry)
Dispersion agent (32500 road Bo Run)
Defoamer (625YCK)
Flow agent (306BYK)
Salt spray resistance auxiliary agent (this is engraved in 1501 seas)
Aerosil (N200 ring fine jade chemical industry)
Polyamide wax powder (LV ring fine jade chemical industry)
Hydrocarbon resin (DI Johanna Lüttge)
Pnenolic aldehyde amine hardener (T-31 Jiangsu three wood)
Table 1: embodiment 1 ~ embodiment 6 formulation ratio
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| E51 epoxy resin | 10 | 12 | 13 | 15 | 10 | 15 |
| Xylene formaldehyde resin | 5 | 4 | 3 | 3 | 5 | 3 |
| Epoxy active diluent | 7.7 | 8.9 | 11.6 | 6.5 | 4.7 | 4.5 |
| Dispersion agent | 0.2 | 0.3 | 0.3 | 0.3 | 0.2 | 0.3 |
| Zinc powder | 70 | 65 | 60 | 65 | 70 | 62 |
| Environmental protection zinc phosphate | 5 | 8 | 10 | 8 | 5 | 8 |
| Defoamer | 0.1 | 0.1 | 0.2 | 0.2 | 0.1 | 0.2 |
| Flow agent | 0.2 | 0.2 | 0.1 | 0.1 | 0.2 | 0.1 |
| Polyamide wax powder | 0.8 | 0.7 | 0.5 | 0.6 | 0.8 | 0.6 |
| Aerosil | 0.2 | 0.3 | 0.3 | 0.3 | 0.2 | 0.3 |
| Salt spray resistance auxiliary agent | 0.8 | 0.5 | 1 | 1 | 0.8 | 1 |
| Hydrocarbon resin | -- | -- | -- | -- | 3 | 5 |
| Add up to | 100 | 100 | 100 | 100 | 100 | 100 |
Preparation method is:
1, epoxy resin, epoxy active diluent, dispersion agent, polyamide wax powder are added in production cylinder, adopt 800-1000 rev/min of high speed dispersion 30-40 minute, guarantee that high speed dispersion temperature reaches 55-65 DEG C;
2, adopt 600-800 rev/min and add modified resin, aerosil, environmental protection zinc phosphate, zinc powder while stirring, adopt 800-1000 rev/min of high speed dispersion 20-30 minute, fineness controls within 80 microns;
3, adopt 600-800 rev/min and add defoamer, flow agent, salt spray resistance auxiliary agent while stirring, adopt 600-800 rev/min to stir 10-15 minute;
4, add hydrocarbon resin, adopt 600-800 rev/min to stir 10-15 minute.
Performance test
Test method: A:B=10:1 ratio is mixed, epoxy active diluent is adopted to carry out the adjustment of working viscosity, spray viscosity is adjusted to 30-40S (T-4 cup, 25 DEG C), the dry plate film thickness of chemical resistance test, salt spray resistance, cold-hot circularity test controls at 90-100 μm, traditional performance test dry plate paint adopts spraying method to realize, and spray viscosity controls to control at 20-30 micron at 25-30S (T-4 cup, 25 DEG C) film thickness.Slaking does all-round property testing after within 7 days, doing solid work completely, and chemical resistant properties, salt spray resistance are tested.
Dry to perform according to GB/T1728, sticking power perform according to GB/T5210, impact perform according to GB/T1732, toughness performs according to GB/T1731, non-volatile matter performs according to GB/T1725, chemical resistance performs according to GB/T9274, the test of resistance to neutral salt spray performs according to GB/T1771, thickness performs according to GB/T13452.2, all properties all carries out contrast test with granted patent CN102533052A " a kind of solvent-free type epoxy zinc rich primer and preparation method thereof " performance.
Table 2: embodiment 1 ~ 6 and CN102533052A performance comparison test result
Analyzed by parallel test result, the low VOC environment-friendly epoxy zinc rich primer adopting non-solvent epoxy system to make has very excellent quick-drying, application property, chemical resistant properties and salt fog resistance, and disposable thickness quickly, before not adding hydrocarbon resin in formula, sticking power is failed more than CN102533052A product best adhesion, modified when adopting hydrocarbon resin to carry out in formula system, no matter from sticking power, chemical resistant properties, salt fog resistance and impact, toughness aspect of performance in the majority all has obvious lifting, and all over-all propertieies all can surmount the index in CN102533052A.
This patent application protection domain comprises: railway bearing, railroad bridge, railway locomotive, highway bearing, highway bridge, petroleum storage tank, petroleum pipe line, natural gas line, oil equipment, passenger train, automobile, water conservancy project machinery, power equipment, power transmission and transforming equipment, airport steel construction, railway station steel construction, light-duty steel construction house, steel tower, chemical mechanical equipment, oil-well drilling equipment, equipment in Refining Units, oil refining steel construction, refinery steel construction, chemical industry and heavy chemical industry equipment facility, refinery appliance arrangement, steel construction, subway installations and facilities, aircraft, motor-car, boats and ships, naval vessels, seaplane carrier, warship, nuclear power steel structure, nuclear power generating equipment facility, thermoelectricity steel construction, thermal power generating equipment facility, freight container, harbour machinery, engineering machinery, building machinery, excavator, shovel loader, tower machine, oil exploration equipment facility, petroleum transportation installations and facilities, Coal Chemical Industry steel construction, Coal Chemical Industry installations and facilities, environmental protection equipment facility, water treating equipment facility, sewage disposal device facility, signal equipment facility, hanging device facility, light rail installations and facilities, railway casting, the different field industries such as steelmaking equipment facility.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the preparation method of one kind low VOC non-solvent epoxy zinc rich primer, it is characterized in that: comprise component A and B component, described component A comprises the following component according to massfraction meter: E51 epoxy resin 10-15%, epoxy active diluent 13-19%, modified resin 3-5%, zinc powder 60-70%, environmental protection zinc phosphate 5-10%, salt spray resistance auxiliary agent 0.5-1%, dispersion agent 0.2-0.3%, polyamide wax powder 0.5-0.8%, aerosil 0.2-0.3%, defoamer 0.1-0.2%, flow agent 0.1-0.2%, hydrocarbon resin 3-5%;
Described B component is the epoxy hardener of 100%;
Its preparation technology comprises:
Epoxy resin, epoxy active diluent, dispersion agent, polyamide wax powder add in production cylinder by step a., adopt 800-1000 rev/min of high speed dispersion 30-40 minute, guarantee that high speed dispersion temperature reaches 55-65 DEG C;
Step b. adopts 600-800 rev/min and adds modified resin, aerosil, environmental protection zinc phosphate, zinc powder while stirring, and adopt 800-1000 rev/min of high speed dispersion 20-30 minute, fineness controls within 80 microns;
Step c adopts 600-800 rev/min and adds defoamer, flow agent, salt spray resistance auxiliary agent while stirring, adopts 600-800 rev/min to stir 10-15 minute;
Steps d. add hydrocarbon resin, adopt 600-800 rev/min to stir 10-15 minute.
Step e. dry plate realizes: A:B=10:1 ratio mixed, epoxy active diluent is adopted to carry out the adjustment of working viscosity, spray viscosity is adjusted to 30-40S (T-4 cup, 25 DEG C), the dry plate film thickness of chemical resistance test, salt spray resistance, cold-hot circularity test controls at 90-100 μm, traditional performance test dry plate paint adopts spraying method to realize, and spray viscosity controls to control at 20-30 micron at 25-30S (T-4 cup, 25 DEG C) film thickness.
2. the preparation method of low VOC non-solvent epoxy zinc rich primer according to claim 1, it is characterized in that: described epoxy active diluent to shrink sweet ether, alcohol glycidyl ether, butylphenyl glycidyl ether, cardanol glycidyl ether, trimethylolpropane polyglycidylether, 1 for comprising butyl, the epoxy active diluent that 6-hexanediol diglycidyl ether, BDDE, polypropylene glycol diglycidyl ether etc. are dissimilar.
3. the preparation method of low VOC non-solvent epoxy zinc rich primer according to claim 1, is characterized in that: described epoxy hardener may be selected to be phenolic aldehyde amine epoxy hardener, fatty amines epoxy hardener and alicyclic ring amine epoxy hardener.
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| CN201510514577.9A CN105086759A (en) | 2015-08-20 | 2015-08-20 | Preparation method of low-VOC (volatile organic compound) solvent-free epoxy zinc-rich primer |
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| CN201510514577.9A CN105086759A (en) | 2015-08-20 | 2015-08-20 | Preparation method of low-VOC (volatile organic compound) solvent-free epoxy zinc-rich primer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504923A (en) * | 2015-12-07 | 2016-04-20 | 常州大学 | Quick-drying solventless coating and preparation method thereof |
| CN109825164A (en) * | 2019-01-24 | 2019-05-31 | 烟台优尼科新材料科技有限公司 | Solventless epoxy coating suit and its preparation method and application |
| CN110054967A (en) * | 2019-05-17 | 2019-07-26 | 张海云 | The epoxy zinc-enriched paint and preparation method of a kind of high-performance, low zinc content |
| CN110144160A (en) * | 2019-05-21 | 2019-08-20 | 江阴市大阪涂料有限公司 | A kind of high solid low surface treatment epoxy zinc rich primer and the preparation method and application thereof |
| CN110540790A (en) * | 2019-09-09 | 2019-12-06 | 江苏德威涂料有限公司 | water-based epoxy anticorrosive primer for container |
| CN110746859A (en) * | 2019-12-03 | 2020-02-04 | 深圳市嘉达高科产业发展有限公司 | Water-based epoxy zinc-rich coating and preparation method thereof |
| CN111675928A (en) * | 2020-04-09 | 2020-09-18 | 苏州吉人高新材料股份有限公司 | High-flash-point high-solid-content safe epoxy zinc-rich coating and preparation method thereof |
| CN112143335A (en) * | 2020-09-17 | 2020-12-29 | 淮安市造漆厂有限公司 | High-flash-point high-solid-content safe flaky zinc-based zinc-rich coating and preparation method thereof |
| CN116410645A (en) * | 2023-03-22 | 2023-07-11 | 宁波磁性材料应用技术创新中心有限公司 | Solvent-free wave-absorbing coating and preparation method thereof |
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| CN102533052A (en) * | 2011-12-28 | 2012-07-04 | 江苏大中制漆有限公司 | Solvent-free type epoxy zinc rich primer and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504923A (en) * | 2015-12-07 | 2016-04-20 | 常州大学 | Quick-drying solventless coating and preparation method thereof |
| CN109825164A (en) * | 2019-01-24 | 2019-05-31 | 烟台优尼科新材料科技有限公司 | Solventless epoxy coating suit and its preparation method and application |
| CN110054967A (en) * | 2019-05-17 | 2019-07-26 | 张海云 | The epoxy zinc-enriched paint and preparation method of a kind of high-performance, low zinc content |
| CN110054967B (en) * | 2019-05-17 | 2021-02-26 | 安徽华腾新材料有限公司 | High-performance low-zinc-content epoxy zinc-rich coating and preparation method thereof |
| CN110144160A (en) * | 2019-05-21 | 2019-08-20 | 江阴市大阪涂料有限公司 | A kind of high solid low surface treatment epoxy zinc rich primer and the preparation method and application thereof |
| CN110540790A (en) * | 2019-09-09 | 2019-12-06 | 江苏德威涂料有限公司 | water-based epoxy anticorrosive primer for container |
| CN110746859A (en) * | 2019-12-03 | 2020-02-04 | 深圳市嘉达高科产业发展有限公司 | Water-based epoxy zinc-rich coating and preparation method thereof |
| CN111675928A (en) * | 2020-04-09 | 2020-09-18 | 苏州吉人高新材料股份有限公司 | High-flash-point high-solid-content safe epoxy zinc-rich coating and preparation method thereof |
| CN112143335A (en) * | 2020-09-17 | 2020-12-29 | 淮安市造漆厂有限公司 | High-flash-point high-solid-content safe flaky zinc-based zinc-rich coating and preparation method thereof |
| CN116410645A (en) * | 2023-03-22 | 2023-07-11 | 宁波磁性材料应用技术创新中心有限公司 | Solvent-free wave-absorbing coating and preparation method thereof |
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Application publication date: 20151125 |