CN115746671A - Preparation method of waterborne epoxy zinc-rich shop primer - Google Patents
Preparation method of waterborne epoxy zinc-rich shop primer Download PDFInfo
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- CN115746671A CN115746671A CN202211354907.9A CN202211354907A CN115746671A CN 115746671 A CN115746671 A CN 115746671A CN 202211354907 A CN202211354907 A CN 202211354907A CN 115746671 A CN115746671 A CN 115746671A
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Abstract
The invention discloses a preparation method of a waterborne epoxy zinc-rich shop primer, which consists of a component A, a component B and distilled water, wherein the component A comprises the following components in parts by weight: and B component: distilled water =3:1:0.4 The mass ratio, wherein the distilled water can be adjusted according to actual conditions, and the component B is added with prefabricated product feldspar powder water slurry, prefabricated product water pre-glue and two epoxy emulsions. According to the technology, the epoxy emulsion with high epoxy equivalent is used, the drier is added, so that a paint film can have good drying and refreshing properties and hardness in a very short time, the natural defects of the epoxy emulsion with high epoxy equivalent are overcome through other technical means, and the high-epoxy-equivalent epoxy emulsion has good drying and refreshing properties, good corrosion resistance and good economy, and can adapt to the fast-paced process conditions of container manufacturers.
Description
Technical Field
The invention relates to the field of epoxy zinc-rich primer coating, in particular to a preparation method of water-based epoxy zinc-rich shop primer.
Background
The container production rhythm is fast, and at present oily epoxy zinc-rich workshop primer is coated on coil iron, and the guide rail is passed through within 10 seconds, and after 40 seconds, the spiral pulling, cutting, stacking and short-term corrosion prevention are carried out, so that the requirements for drying, film forming, dryness and the like of the coating are very high, and at present, the oily workshop primer for the container is used under the same conditions.
The water-based epoxy zinc-rich paint can be generally divided into self-emulsification and non-self-emulsification, is limited by harsh drying conditions of container production sites, the epoxy zinc-rich primer of a self-emulsification system has larger design technical difficulty, and the non-self-emulsification epoxy zinc-rich primer has obvious advantages in design technology.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a preparation method of a water-based epoxy zinc-rich shop primer.
The invention provides the following technical scheme:
the invention relates to a preparation method of a water-based epoxy zinc-rich shop primer, which consists of a component A, a component B and distilled water, wherein the component A and the component B are specifically as follows:
the component A comprises the following components in percentage by mass: 1-2 parts of water-soluble polyamide, 1-2 parts of water-soluble aliphatic amine, 0.6-1 part of nonionic dispersant, 0.2-0.6 part of polyether siloxane defoamer, 0.2-0.6 part of hydrophobic polymer wetting agent, 0.2-0.6 part of 5A molecular sieve, 0.6-1.5 part of organic modified bentonite, 0.2-0.6 part of hydrophobic fumed silica, 0.4-0.8 part of AMP-95 multifunctional auxiliary agent, 1-3 parts of propylene glycol monomethyl ether, 1-3 parts of propylene glycol butyl ether, 2-6 parts of ferrophosphorus powder, 1-2 parts of feldspar powder, 78-82 parts of zinc powder, 1-4 parts of anti-sagging auxiliary agent and 0.1-0.3 part of 2,4, 6-tri (dimethylaminomethyl) phenol (drier);
the component B comprises the following components in percentage by mass: 30-40 parts of epoxy emulsion E20, 30-40 parts of epoxy emulsion E14, 0-15 parts of distilled water, 10-20 parts of prefabricated product water-based pre-glue, 12-15 parts of prefabricated product feldspar powder slurry and 0.1-0.3 part of polyether siloxane defoaming agent;
the component A comprises: and the component B comprises: distilled water =3:1:0.4 (mass ratio), wherein the distilled water can be adjusted according to actual conditions.
As a preferable technical scheme, the specific preparation method of the water-based epoxy zinc-rich shop primer is as follows:
(1) Preparing a prefabricated product feldspar powder water slurry:
is prepared by uniformly mixing and stirring 26.5 percent of distilled water, 0.8 percent of nonionic dispersant, 71.5 percent of feldspar powder, 0.2 percent of polyether siloxane defoamer and 1 percent of aqueous pre-adhesive in a mass ratio at 1000 rpm;
(2) Preparing a prefabricated product water-based pre-glue:
is prepared by mixing and stirring 97 percent of distilled water, 2.5 percent of hydrophobic modified hydroxyethyl cellulose and 0.5 percent of activating agent uniformly at 1000 rpm;
(3) The preparation of the component A comprises the following steps:
A. the method comprises the following steps of adding 1.2% of water-soluble polyamide, 2% of water-soluble aliphatic amine, 0.8% of nonionic dispersant, 0.3% of polyether siloxane defoaming agent, 0.3% of hydrophobic polymer wetting agent, 0.2% of 5A molecular sieve, 1% of organically modified bentonite, 0.4% of hydrophobic fumed silica, 0.8% of AMP-95 multifunctional auxiliary agent, 2% of propylene glycol methyl ether, 1.5% of propylene glycol butyl ether, 1.5% of feldspar powder and 1.8% of ferrophosphorus powder in sequence at a stirring speed of about 1000rpm, and stirring the materials uniformly until the materials are ground for the next stage of production;
B. 3.6 percent of propylene glycol methyl ether, 82.5 percent of zinc powder and 0.1 percent of 2,4, 6-tri (dimethylaminomethyl) phenol (drier) are added at the stirring speed of about 1500rpm, and the stirring is continued for 20 minutes after the materials are added;
C. stirring the step A and the step B in sequence and mixing the mixture together to prepare a complete component A material;
(4) Preparation of the component B:
the epoxy resin is prepared by adding 50% of epoxy emulsion E20, 20% of epoxy emulsion E14, 14% of feldspar powder water slurry, 15.8% of water-based pre-glue and 0.2% of polyether siloxane defoamer at a stirring speed of about 1000rpm and continuously stirring for 20 minutes after the materials are added.
Compared with the prior art, the invention has the following beneficial effects:
according to the technology, the epoxy emulsion with high epoxy equivalent is used, the drier is added, so that a paint film can have good drying and refreshing properties and hardness in a very short time, the natural defects of the epoxy emulsion with high epoxy equivalent are overcome through other technical means, and the high-epoxy-equivalent epoxy emulsion has good drying and refreshing properties, good corrosion resistance and good economy, and can adapt to the fast-paced process conditions of container manufacturers.
Detailed Description
It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.
Examples
The invention provides a preparation method of a water-based epoxy zinc-rich shop primer, and the preparation of a prefabricate feldspar powder water slurry and the preparation of a prefabricate water-based pre-glue are consistent in multiple embodiments.
The specific preparation method of the first waterborne epoxy zinc-rich shop primer of the invention is as follows (example # 1):
(1) Preparing a prefabricated product feldspar powder water slurry:
is prepared by uniformly mixing and stirring 26.5 percent of distilled water, 0.8 percent of nonionic dispersant, 71.5 percent of feldspar powder, 0.2 percent of polyether siloxane defoamer and 1 percent of water-based pre-adhesive at 1000 rpm;
(2) Preparing a prefabricated product water-based pre-glue:
is prepared by mixing and stirring 97 percent of distilled water, 2.5 percent of hydrophobic modified hydroxyethyl cellulose and 0.5 percent of activating agent uniformly at 1000 rpm;
(3) The preparation of the component A comprises the following steps:
A. the method comprises the following steps of adding 1.2% of water-soluble polyamide, 2% of water-soluble aliphatic amine, 0.8% of nonionic dispersant, 0.3% of polyether siloxane defoaming agent, 0.3% of hydrophobic polymer wetting agent, 0.2% of 5A molecular sieve, 1% of organically modified bentonite, 0.4% of hydrophobic fumed silica, 0.8% of AMP-95 multifunctional auxiliary agent, 2% of propylene glycol methyl ether, 1.5% of propylene glycol butyl ether, 1.5% of feldspar powder and 1.8% of ferrophosphorus powder in sequence at a stirring speed of about 1000rpm, and stirring the materials uniformly until the materials are ground for the next stage of production;
B. adding 3.6 percent of propylene glycol methyl ether, 82.5 percent of zinc powder and 0.1 percent of 2,4, 6-tri (dimethylaminomethyl) phenol (drier) at the stirring speed of about 1500rpm, and continuing stirring for 20 minutes after the materials are added;
C. stirring the step A and the step B in sequence and mixing the mixture together to prepare a complete component A material;
(4) Preparation of the component B:
the epoxy resin is prepared by adding 50% of epoxy emulsion E20, 20% of epoxy emulsion E14, 14% of feldspar powder water slurry, 15.8% of water-based pre-glue and 0.2% of polyether siloxane defoamer at a stirring speed of about 1000rpm and continuously stirring for 20 minutes after the materials are added.
The a and B components of the prior art waterborne epoxy zinc rich shop primer were prepared as follows (i.e., example # 0 in the table):
the preparation of the component A comprises the following steps:
A. the method comprises the following steps of adding 2.6 mass percent of water-soluble polyamide, 1.3 mass percent of water-soluble aliphatic amine, 0.8 mass percent of nonionic dispersant, 0.3 mass percent of polyether siloxane defoamer, 0.3 mass percent of hydrophobic polymer wetting agent, 0.2 mass percent of 5A molecular sieve, 1 mass percent of organically modified bentonite, 0.4 mass percent of hydrophobic fumed silica, 0.8 mass percent of AMP-95 multifunctional auxiliary agent, 2 mass percent of propylene glycol methyl ether, 1.5 mass percent of propylene glycol butyl ether and 5.1 mass percent of ferrophosphorus powder in sequence at a stirring speed of about 1000rpm, and enabling the materials to be uniformly stirred and to enter the next stage of production after being ground;
B. 3.6 percent of propylene glycol methyl ether, 80 percent of zinc powder and 0.1 percent of 2,4, 6-tri (dimethylaminomethyl) phenol (drier) are added at the stirring speed of about 1500rpm, and the stirring is continued for 20 minutes after the materials are added;
C. stirring the step A and the step B in sequence and mixing the mixture together to prepare a complete component A material;
the preparation of the component B comprises the following steps:
the epoxy resin is prepared by adding 70% of epoxy emulsion E20, 13.2% of distilled water, 16% of water-based pre-glue, 0.4% of sodium salt, potassium salt compound solution and 0.4% of inorganic acid amine according to the mass ratio when the stirring speed is about 1000rpm, and continuously stirring for 20 minutes after the materials are added.
The specific preparation method of the second waterborne epoxy zinc-rich shop primer of the invention is as follows (example 2 #):
the preparation of the component A comprises the following steps:
A. the material is prepared by adding 1.1 percent of water-soluble polyamide, 1.7 percent of water-soluble aliphatic amine, 0.8 percent of nonionic dispersant, 0.3 percent of polyether siloxane defoamer, 0.3 percent of hydrophobic polymer wetting agent, 0.2 percent of 5A molecular sieve, 1 percent of organic modified bentonite, 0.4 percent of hydrophobic fumed silica, 0.8 percent of AMP-95 multifunctional auxiliary agent, 2 percent of propylene glycol methyl ether, 1.5 percent of propylene glycol butyl ether, 1.5 percent of feldspar powder and 1.8 percent of ferrophosphorus powder in sequence at the stirring speed of about 1000rpm, and the materials are uniformly stirred and need to be ground before entering the next stage of production;
B. adding 4 percent of propylene glycol methyl ether, 82.5 percent of zinc powder and 0.1 percent of 2,4, 6-tri (dimethylaminomethyl) phenol (drier) at a stirring speed of about 1500rpm, and continuously stirring for 20 minutes after the materials are added;
C. stirring the step A and the step B in sequence and mixing the mixture together to prepare a complete component A material;
the preparation of the component B comprises the following steps:
the epoxy resin is prepared by adding 35% of epoxy emulsion E20, 35% of epoxy emulsion E14, 14% of feldspar powder water slurry, 15.8% of water-based pre-glue and 0.2% of polyether siloxane defoaming agent by mass ratio at a stirring speed of about 1000rpm, and continuously stirring for 20 minutes after the materials are added.
The specific preparation method of the third waterborne epoxy zinc-rich shop primer of the invention is as follows (example # 3):
the preparation of the component A comprises the following steps:
A. the components are added by mass ratio of 1.3% of water-soluble polyamide, 2.5% of water-soluble aliphatic amine, 0.8% of non-ionic dispersant, 0.3% of polyether siloxane defoamer, 0.3% of hydrophobic polymer wetting agent, 0.2% of 5A molecular sieve, 1% of organic modified bentonite, 0.4% of hydrophobic fumed silica, 0.8% of AMP-95 multifunctional auxiliary agent, 2% of propylene glycol methyl ether, 1.5% of propylene glycol butyl ether, 1.5% of feldspar powder and 1.8% of ferrophosphorus powder in sequence at a stirring speed of about 1000rpm, and the materials are stirred uniformly and need to be ground for the next stage of production;
B. adding 3 percent of propylene glycol methyl ether, 82.5 percent of zinc powder and 0.1 percent of 2,4, 6-tri (dimethylaminomethyl) phenol (drier) at a stirring speed of about 1500rpm, and continuously stirring for 20 minutes after the materials are added;
C. stirring the step A and the step B in sequence and mixing the mixture together to prepare a complete component A material;
the preparation of the component B comprises the following steps:
the epoxy resin is prepared by adding 20% of epoxy emulsion E20, 50% of epoxy emulsion E14, 14% of feldspar powder water slurry, 15.8% of water-based pre-glue and 0.2% of polyether siloxane defoaming agent by mass ratio at a stirring speed of about 1000rpm, and continuously stirring for 20 minutes after the materials are added.
Comparative tables of the present invention with respect to example # 0 (prior preparation method), example # 1 (first preparation method of the present invention), example # 2 (second preparation method of the present invention), and example # 3 (third preparation method of the present invention) are as follows:
the container production rhythm is fast, and at present oily epoxy zinc-rich workshop primer is coated on coil iron, and the guide rail is passed through within 10 seconds, and after 40 seconds, the spiral pulling, cutting, stacking and short-term corrosion prevention are carried out, so that the requirements for drying, film forming, dryness and the like of the coating are very high, and at present, the oily workshop primer for the container is used under the same conditions.
The water-based epoxy zinc-rich paint can be generally divided into self-emulsification and non-self-emulsification, is limited by harsh drying conditions of a container production site, and the epoxy zinc-rich primer of a self-emulsification system has higher design technical difficulty while the non-self-emulsification epoxy zinc-rich primer has obvious advantages in the design technology.
The invention has the following characteristics:
1. a non-self-emulsifying zinc powder system is adopted as the primer for the epoxy zinc-rich workshop.
2. The epoxy emulsion used an epoxy equivalent emulsion (epoxy emulsion E20) in combination with a high epoxy equivalent emulsion (epoxy emulsion E14).
3. Propylene glycol butyl ether is used.
4. 2,4, 6-tris (dimethylaminomethyl) phenol (drier) was used.
5. Adopts AMP-95 multifunctional auxiliary agent.
According to the invention, the epoxy emulsion with high epoxy equivalent is used, the drier is added, so that the paint film has good drying and refreshing properties and hardness in a very short time, the natural defects of the epoxy emulsion with high epoxy equivalent are overcome by other technical means, and the high-epoxy-equivalent epoxy emulsion has good drying and refreshing properties, good corrosion resistance and good economy, and can adapt to the fast-paced process conditions of container manufacturers.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The preparation method of the water-based epoxy zinc-rich shop primer is characterized in that the water-based epoxy zinc-rich shop primer is composed of a component A, a component B and distilled water, wherein the component A and the component B are specifically as follows:
the component A comprises the following components in percentage by mass: 1-2 parts of water-soluble polyamide, 1-2 parts of water-soluble aliphatic amine, 0.6-1 part of non-ionic dispersant, 0.2-0.6 part of polyether siloxane defoamer, 0.2-0.6 part of hydrophobic polymer wetting agent, 0.2-0.6 part of 5A molecular sieve, 0.6-1.5 part of organic modified bentonite, 0.2-0.6 part of hydrophobic fumed silica, 0.4-0.8 part of AMP-95 multifunctional additive, 1-3 parts of propylene glycol methyl ether, 1-3 parts of propylene glycol butyl ether, 2-6 parts of ferrophosphorus powder, 1-2 parts of feldspar powder, 78-82 parts of zinc powder, 1-4 parts of anti-sagging additive and 0.1-0.3 part of 2,4, 6-tri (dimethylaminomethyl) phenol (drier);
the component B comprises the following components in percentage by mass: 30-40 parts of epoxy emulsion E20, 30-40 parts of epoxy emulsion E14, 0-15 parts of distilled water, 10-20 parts of prefabricated product water-based pre-glue, 12-15 parts of prefabricated product feldspar powder slurry and 0.1-0.3 part of polyether siloxane defoaming agent;
the component A comprises: and the component B comprises: distilled water =3:1:0.4 (mass ratio), wherein the distilled water can be adjusted according to actual conditions.
2. The preparation method of the water-based epoxy zinc-rich shop primer according to claim 1, wherein the preparation method of the water-based epoxy zinc-rich shop primer is as follows:
(1) Preparing a prefabricated product feldspar powder water slurry:
is prepared by uniformly mixing and stirring 26.5 percent of distilled water, 0.8 percent of nonionic dispersant, 71.5 percent of feldspar powder, 0.2 percent of polyether siloxane defoamer and 1 percent of water-based pre-adhesive at 1000 rpm;
(2) Preparing a prefabricated product water-based pre-glue:
is prepared by mixing and stirring 97 percent of distilled water, 2.5 percent of hydrophobically modified hydroxyethyl cellulose and 0.5 percent of activating agent uniformly at 1000 rpm;
(3) The preparation of the component A comprises the following steps:
A. the raw materials comprise, by mass, 1.2% of water-soluble polyamide, 2% of water-soluble aliphatic amine, 0.8% of nonionic dispersing agent, 0.3% of polyether siloxane defoaming agent, 0.3% of hydrophobic polymer wetting agent, 0.2% of 5A molecular sieve, 1% of organically modified bentonite, 0.4% of hydrophobic fumed silica, 0.8% of AMP-95 multifunctional auxiliary agent, 2% of propylene glycol methyl ether, 1.5% of propylene glycol butyl ether, 1.5% of feldspar powder and 1.8% of ferrophosphorus powder, which are added in sequence at a stirring speed of about 1000rpm, and the materials are uniformly stirred and need to be ground before entering the next stage of production;
B. 3.6 percent of propylene glycol methyl ether, 82.5 percent of zinc powder and 0.1 percent of 2,4, 6-tri (dimethylaminomethyl) phenol (drier) are added at the stirring speed of about 1500rpm, and the stirring is continued for 20 minutes after the materials are added;
C. stirring the step A and the step B in sequence and mixing the mixture together to prepare a complete component A material;
(4) Preparation of the component B:
the epoxy resin is prepared by adding 50% of epoxy emulsion E20, 20% of epoxy emulsion E14, 14% of feldspar powder water slurry, 15.8% of water-based pre-glue and 0.2% of polyether siloxane defoaming agent at a stirring speed of about 1000rpm, and continuously stirring for 20 minutes after the materials are added.
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| CN202211354907.9A CN115746671A (en) | 2022-11-01 | 2022-11-01 | Preparation method of waterborne epoxy zinc-rich shop primer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211354907.9A CN115746671A (en) | 2022-11-01 | 2022-11-01 | Preparation method of waterborne epoxy zinc-rich shop primer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106271A (en) * | 1979-02-09 | 1980-08-14 | Nippon Oil & Fats Co Ltd | Aqueous inorganic zinc-rich primer |
| CN1560083A (en) * | 2004-03-12 | 2005-01-05 | 四川大学 | Preparation process of hydrophobic associated ethoxyl cellulose |
| CN109233563A (en) * | 2018-08-09 | 2019-01-18 | 浩力森涂料（上海）有限公司 | A kind of normal temperature quick-drying type water-based epoxy zinc-rich primer and its preparation process |
| WO2021109893A1 (en) * | 2019-12-04 | 2021-06-10 | Guangdong Huarun Paints Co., Ltd. | Aqueous epoxy resin based shop primer |
| CN113563748A (en) * | 2021-08-27 | 2021-10-29 | 江苏进华重防腐涂料有限公司 | Water-based inorganic zinc silicate shop primer and preparation method thereof |
| CN114456694A (en) * | 2022-01-07 | 2022-05-10 | 湖南航天三丰科工有限公司 | Polyurethane primer and finish combined coating |
-
2022
- 2022-11-01 CN CN202211354907.9A patent/CN115746671A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55106271A (en) * | 1979-02-09 | 1980-08-14 | Nippon Oil & Fats Co Ltd | Aqueous inorganic zinc-rich primer |
| CN1560083A (en) * | 2004-03-12 | 2005-01-05 | 四川大学 | Preparation process of hydrophobic associated ethoxyl cellulose |
| CN109233563A (en) * | 2018-08-09 | 2019-01-18 | 浩力森涂料（上海）有限公司 | A kind of normal temperature quick-drying type water-based epoxy zinc-rich primer and its preparation process |
| WO2021109893A1 (en) * | 2019-12-04 | 2021-06-10 | Guangdong Huarun Paints Co., Ltd. | Aqueous epoxy resin based shop primer |
| CN113563748A (en) * | 2021-08-27 | 2021-10-29 | 江苏进华重防腐涂料有限公司 | Water-based inorganic zinc silicate shop primer and preparation method thereof |
| CN114456694A (en) * | 2022-01-07 | 2022-05-10 | 湖南航天三丰科工有限公司 | Polyurethane primer and finish combined coating |
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