CN103756528A - Solvent-resistant polyester coating for steel products and preparation method thereof - Google Patents
Solvent-resistant polyester coating for steel products and preparation method thereof Download PDFInfo
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- CN103756528A CN103756528A CN201310743424.2A CN201310743424A CN103756528A CN 103756528 A CN103756528 A CN 103756528A CN 201310743424 A CN201310743424 A CN 201310743424A CN 103756528 A CN103756528 A CN 103756528A
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Abstract
The invention discloses solvent-resistant polyester coating for steel products and a preparation method thereof. The solvent-resistant polyester coating for steel products is prepared from the following raw materials in parts by weight: 90-95 parts of epoxy resin modified polyester, 8-12 parts of phenolic resin, 220-235 parts of cellosolve, 70-75 parts of cyclohexanone, 40-55 parts of ethyl acetate, 100-105 parts of titanium dioxide and 55-64 parts of mica powder. The solvent-resistant polyester coating is reasonable in formula and easy in obtaining of raw materials; the preparation method is simple and practicable; and the obtained coating has relatively strong adhesive force and good solvent resistance and is easy to spray, smooth and compact.
Description
Technical field
The invention belongs to paint field, be specifically related to a kind of polyester coating of resistance to solvent and preparation method thereof for steel.
Background technology
Steel are widely used in the making of the storage tanks such as sewage, seawater, gasoline, kerosene, are also used widely on the equipment such as On The Oil And Gas Transportation, bridge simultaneously.Along with the development of steel, for the protection of the coating of steel, also develop rapidly, the quality of coating quality is directly connected to the work-ing life of steel, and there is not resistance to solvent, be difficult for the deficiency of spraying in existing steel tailor-(made) coating.
In sum, how to overcome the deficiencies in the prior art and become paint field problem demanding prompt solution.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and propose polyester coating of resistance to solvent and preparation method thereof for a kind of steel, coating of the present invention has good sticking power and solvent resistance, and is easy to spraying.
Technical scheme of the present invention is as follows:
The polyester coating of resistance to solvent for steel, comprise the following raw material according to mass fraction meter: epoxy resin modification polyester 90-95 part, resol 8-12 part, cellosolve 220-235 part, pimelinketone 70-75 part, ethyl acetate 40-55 part, titanium dioxide 100-105 part, mica powder 55-64 part, wherein, epoxy resin modification polyester is by terephthalic acid-m-phthalic acid-ethylene glycol-neopentyl glycol multipolymer, epoxy resin and hexahydro-phthalic acid diepoxy glyceride make react 8h at 285 ℃ after, terephthalic acid-m-phthalic acid-ethylene glycol-neopentyl glycol multipolymer, the mol ratio of epoxy resin and hexahydro-phthalic acid diepoxy glyceride is 2:4:5.
The described polyester coating of resistance to solvent for steel, wherein said cellosolve is a kind of in 1,2-glycol dimethyl ether or 2-methoxyacetic acid ethyl ester.
The preparation method of the polyester coating of resistance to solvent for described steel, comprise the following steps: according to quality proportioning, first cellosolve, pimelinketone and ethyl acetate are mixed, add epoxy resin modification polyester to stir, after add successively resol, titanium dioxide and mica powder, mix rear grinding and sieve and obtain the polyester coating of resistance to solvent for steel.
Beneficial effect: the present invention fills a prescription rationally, raw material is easy to get, and preparation method is simple, and gained coating has stronger sticking power to steel, and has good solvent resistance, is easy to spraying, the smooth densification of gained coating.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
The polyester coating of resistance to solvent for steel, comprise the following raw material according to mass fraction meter: 8 parts of 90 parts of epoxy resin modification polyester, resol, 1,220 parts of 2-glycol dimethyl ethers, 70 parts of pimelinketone, 40 parts of ethyl acetate, 100 parts of titanium dioxides, 55 parts of mica powders, wherein, epoxy resin modification polyester reacts 8h by terephthalic acid-m-phthalic acid-ethylene glycol-neopentyl glycol multipolymer, epoxy resin and hexahydro-phthalic acid diepoxy glyceride at 285 ℃, is cooled to 30 ℃ and get final product; The mol ratio of terephthalic acid-m-phthalic acid-ethylene glycol-neopentyl glycol multipolymer, epoxy resin and hexahydro-phthalic acid diepoxy glyceride is 2:4:5.
The present embodiment preparation method: according to quality proportioning, first cellosolve, pimelinketone and ethyl acetate are mixed, add epoxy resin modification polyester to stir, after add successively resol, titanium dioxide and mica powder, mix rear grinding and sieve and obtain the polyester coating of resistance to solvent for steel.
This finished product is carried out to Performance Detection, and detected result is in Table 1.
Embodiment 2
The polyester coating of resistance to solvent for steel, comprise the following raw material according to mass fraction meter: 12 parts of 95 parts of epoxy resin modification polyester, resol, 1,235 parts of 2-glycol dimethyl ethers, 75 parts of pimelinketone, 55 parts of ethyl acetate, 105 parts of titanium dioxides, 64 parts of mica powders, wherein, the preparation method of epoxy resin modification polyester is with embodiment 1, and the mol ratio of terephthalic acid-m-phthalic acid-ethylene glycol-neopentyl glycol multipolymer, epoxy resin and hexahydro-phthalic acid diepoxy glyceride is 2:4:5.
Preparation method of the present invention, with embodiment 1, carries out Performance Detection by this finished product, and detected result is in Table 1.
Embodiment 3
The polyester coating of resistance to solvent for steel, comprise the following raw material according to mass fraction meter: epoxy resin modification polyester 9,2 parts, 10 parts, resol, 230 parts of 2-methoxyacetic acid ethyl esters, 72 parts of pimelinketone, 50 parts of ethyl acetate, 102 parts of titanium dioxides, 60 parts of mica powders, wherein, the preparation method of epoxy resin modification polyester is with embodiment 1, and the mol ratio of terephthalic acid-m-phthalic acid-ethylene glycol-neopentyl glycol multipolymer, epoxy resin and hexahydro-phthalic acid diepoxy glyceride is 2:4:5.
Preparation method of the present invention, with embodiment 1, carries out Performance Detection by this finished product, and detected result is in Table 1.
Finished product prepared by embodiment 1-3 carries out performance test, the results are shown in Table 1:
Table 1 performance test data
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Sticking power (drawing circle method), level | 1 | 1 | 1 |
As seen from the above table, coating of the present invention has good sticking power.
Adopt airless spraying, the coating that this coating is formed is carried out resistance to salt water (sodium chloride solution that mass concentration is 6%), salt spray resistance and alkali resistance (sodium hydroxide solution that mass concentration is 10%) test, and 300h is unchanged; Gloss at 60 ℃ of paint films is 90, and pencil hardness is HB.
Above-described embodiment is only the explanation to product of the present invention; not the present invention is made to any pro forma restriction; within not departing from technical scheme scope of the present invention, any technology contents that utilizes above-mentioned announcement is made the equivalent of simple transformation, all belongs to protection scope of the present invention.
Claims (3)
1. the polyester coating of resistance to solvent for steel, it is characterized in that, comprise the following raw material according to mass fraction meter: epoxy resin modification polyester 90-95 part, resol 8-12 part, cellosolve 220-235 part, pimelinketone 70-75 part, ethyl acetate 40-55 part, titanium dioxide 100-105 part, mica powder 55-64 part, wherein, epoxy resin modification polyester is by terephthalic acid-m-phthalic acid-ethylene glycol-neopentyl glycol multipolymer, epoxy resin and hexahydro-phthalic acid diepoxy glyceride make react 8h at 285 ℃ after, terephthalic acid-m-phthalic acid-ethylene glycol-neopentyl glycol multipolymer, the mol ratio of epoxy resin and hexahydro-phthalic acid diepoxy glyceride is 2:4:5.
2. the polyester coating of resistance to solvent for steel according to claim 1, is characterized in that, described cellosolve is a kind of in 1,2-glycol dimethyl ether or 2-methoxyacetic acid ethyl ester.
3. the preparation method of the polyester coating of resistance to solvent for steel claimed in claim 1, it is characterized in that, comprise the following steps: according to quality proportioning, first cellosolve, pimelinketone and ethyl acetate are mixed, add epoxy resin modification polyester to stir, after add successively resol, titanium dioxide and mica powder, mix rear grinding and sieve and obtain the polyester coating of resistance to solvent for steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310743424.2A CN103756528A (en) | 2013-12-30 | 2013-12-30 | Solvent-resistant polyester coating for steel products and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310743424.2A CN103756528A (en) | 2013-12-30 | 2013-12-30 | Solvent-resistant polyester coating for steel products and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103756528A true CN103756528A (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310743424.2A Withdrawn CN103756528A (en) | 2013-12-30 | 2013-12-30 | Solvent-resistant polyester coating for steel products and preparation method thereof |
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| CN (1) | CN103756528A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079175A (en) * | 2000-09-04 | 2002-03-19 | Sumitomo Metal Ind Ltd | Coated material sheet |
| CN1382754A (en) * | 2001-04-25 | 2002-12-04 | 金刚高丽化学 | Bottom coated polyester for anti-rust precoating outdoor metal safety guard |
| KR20030059521A (en) * | 2001-12-29 | 2003-07-10 | 주식회사 금강고려화학 | Galvanizing primer polyester coating composition |
| CN101735713A (en) * | 2008-11-21 | 2010-06-16 | 上海振华造漆厂 | Polyester coating for outer wall of steel drum and preparation method as well as application thereof |
| CN102233701A (en) * | 2010-04-20 | 2011-11-09 | 宝山钢铁股份有限公司 | Color-coating steel plate and coating process |
-
2013
- 2013-12-30 CN CN201310743424.2A patent/CN103756528A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002079175A (en) * | 2000-09-04 | 2002-03-19 | Sumitomo Metal Ind Ltd | Coated material sheet |
| CN1382754A (en) * | 2001-04-25 | 2002-12-04 | 金刚高丽化学 | Bottom coated polyester for anti-rust precoating outdoor metal safety guard |
| KR20030059521A (en) * | 2001-12-29 | 2003-07-10 | 주식회사 금강고려화학 | Galvanizing primer polyester coating composition |
| CN101735713A (en) * | 2008-11-21 | 2010-06-16 | 上海振华造漆厂 | Polyester coating for outer wall of steel drum and preparation method as well as application thereof |
| CN102233701A (en) * | 2010-04-20 | 2011-11-09 | 宝山钢铁股份有限公司 | Color-coating steel plate and coating process |
Non-Patent Citations (1)
| Title |
|---|
| 黄玉媛等: "《精细化工品实用配方手册》", 31 January 2009, 中国纺织出版社 * |
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Application publication date: 20140430 |