CN1712473A - Epoxy zinc-enriched antiseptic powdery paint and production thereof - Google Patents
Epoxy zinc-enriched antiseptic powdery paint and production thereof Download PDFInfo
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- CN1712473A CN1712473A CN 200410041101 CN200410041101A CN1712473A CN 1712473 A CN1712473 A CN 1712473A CN 200410041101 CN200410041101 CN 200410041101 CN 200410041101 A CN200410041101 A CN 200410041101A CN 1712473 A CN1712473 A CN 1712473A
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Abstract
An epoxy resin and zinc-enriched heavy anti-corrosive powdery coating and its production are disclosed. The coating consists of epoxy resin, phenolic epoxy resin, zinc powder, curing agent, curing improver, leveling agent, toughening agent, degassing agent and flowing improver. The process is carried out by using filler as raw materials, preparing pre-disperse mixture from melt extrude mixing method or melt high-speed stir mixing method, mixing, extruding, breaking, screening and testing. It achieves non-toxic, no pollution and corrosion prevention.
Description
Technical field
The present invention relates to a kind of epoxy resin and zinc-enriched heavy anti-corrosive and preparation method thereof, belong to the powder coating technical field of electrostatic coating.
Background technology
Double antiseptic powder coating is one of powder coating developing trend, double antiseptic powder coating mainly improves the anti-corrosion capability of powder coating by binder resin modification, antirust color stuffing at present, take simultaneously thickly to be coated with, the constructional method of overbrushing layer or compound coating, to realize the anticorrosion purpose of weight of coating.
Utilize the anodic oxidation of metallic zinc to protect this principle of steel substrate, people develop zinc-rich coating and organic zinc-rich primer, are successfully applied in the anticorrosive construction of all kinds of iron structures, and have obtained unusual effect.But the same with powder coating with common paint, existing all kinds of zinc rich primers obviously exist coating machine poor performance, construction cost height, environmental pollution and preservative effect defective not fully up to expectations.
Summary of the invention
The purpose of this invention is to provide a kind of coating machine excellent performance, construction cost is low and efficient, exsertile epoxy resin and zinc-enriched heavy anti-corrosive of preservative property and preparation method thereof.
The present invention realizes with following technical scheme: epoxy resin and zinc-enriched heavy anti-corrosive is to be that raw material is made by Resins, epoxy, novolac epoxy, zinc powder, solidifying agent, curing catalyst, flow agent, toughner, air release agent, flow improver additive, filler.The weight percent of various raw materials is: Resins, epoxy 25-60%, novolac epoxy 2-15%, solidifying agent 3-10%, curing catalyst 0.05-0.5%, flow agent 503 1-3%, toughner PVB 0.2-2%, air release agent 0.1-0.5%, flow improver additive 0.1-0.2%, zinc powder 20-50%, filler 0-20%.
The usage percentage of each raw material is that the contriver draws on a large amount of experimental basis, has good effect in above-mentioned amount ranges.
Zinc powder among the present invention is a flakey, particle diameter 1-20 μ m.
Solidifying agent among the present invention is the phenols hardener for epoxy resin.
Curing catalyst among the present invention is imidazoles or ring miaow based epoxy resin solidifying agent.
Air release agent among the present invention is a micro mist wax.
Flow improver additive among the present invention is aerosil or aluminum oxide C.
Filler among the present invention is a ultra-fine barium sulfate.
Flow agent among the present invention is an acrylic polyester;
Toughner among the present invention is PVB.
The preparation method of epoxy resin and zinc-enriched heavy anti-corrosive of the present invention is as follows:
Employing melt extrude hybrid system or fusion high-speed stirring hybrid system with the dispersed mixture of zinc powder, Resins, epoxy, novolac epoxy, flow agent carry out the fusion dispersion, pre-dispersed mixture is made in the roll-in cooling in flakes, then with pre-dispersed mixture and solidifying agent, curing catalyst, toughner, air release agent, flow improver additive, filler together through premix → extrude → compressing tablet → abrasive dust → sieve epoxy resin and zinc-enriched heavy anti-corrosive.
Among the present invention melt extrude hybrid system be blending dispersion thing with zinc powder, Resins, epoxy, novolac epoxy, flow agent be added in the screw extrusion press extrude, more broken thing melt extruded once more behind the compressing tablet, fragmentation, compressing tablet, fragmentation, so repeat to melt extrude, compressing tablet, broken operation repeatedly make pre-dispersed mixture, preceding warm 90-100 ℃ of forcing machine, warm 120-130 ℃ of back, material melt extrudes, compressing tablet, broken repetitive operation accumulative total 2-5 time, mixing of materials accumulated time 60-300s.
Fusion high-speed stirring hybrid system of the present invention is that the dispersed mixture of Resins, epoxy, novolac epoxy, flow agent, zinc powder or independent the adding are successively had in the stainless steel cauldron of mechanical stirring, thermometer, heating jacket, material is heated to 130-160 ℃ to be melted until resin, and maintain 130-160 ℃, simultaneously with the material high-speed stirring, at 130-160 ℃ of following dispersed with stirring 0.5-1h, pour cooling, fragmentation in the big aluminum square position then into, be pre-dispersed mixture.
The invention has the beneficial effects as follows:
Powder coating of the present invention adopts the electrostatic spraying constructional method to act on to reach Sa2.5 through sandblast or ball blast pre-treatment rear surface roughness that (ISO 8501.1,1988) on the above steel substrate that requires, fully solidify through 200 ℃, naturally cool to room temperature, after placing 24h, measure coating performance, its coat-thickness 50-80 μ m.Its salient features characterizes as follows:
Salt-fog test is measured by the FQY-010 type salt-spray cabinet that laboratory apparatus factory in Shanghai produces, artificial accelerated aging test is measured by the Q-UV artificial accelerated aging test instrument that U.S. ATLAS company produces, thickness is measured with the two probe thickness testers of 600B type that German BYK company produces, sticking power is measured by GB/T 9286-1998 regulation, and shock strength is measured by GB/T 1732-1993 regulation.Its test result is: every index is all above the industry standard HG/T 3668-2000 that has zinc rich primer now, and the coating salt-fog resistant test was above 2000 hours.Practical application shows that this epoxy resin and zinc-enriched heavy anti-corrosive can protect steel construction to avoid the etch of all kinds of corrosive mediums for a long time, and effect obviously is better than existing zinc rich primer.
Production of the present invention and using method are simple, and be nontoxic, pollution-free, the abundant and low price in starting material source.
Embodiment
Further illustrate the solution of the present invention and effect below in conjunction with embodiment.
Embodiment 1
Raw material consumption (wt%)
Resins, epoxy E-12 30
Novolac epoxy GT-7255 15
Phenols curing agent PSG-01 9
Curing catalyst 0.3
Flow agent 503 2.4
Toughner PVB 1.3
Air release agent 0.3
Flow improver additive 0.2
Ultra-fine barium sulfate 11.5
Zinc powder 30
By melt extruding the hybrid system preparation, can obtain epoxy resin and zinc-enriched heavy anti-corrosive by above-mentioned prescription.0 grade of its coating adhesion, shock strength 100cm, salt-fog resistant time 〉=3000h, artificial accelerated aging time 〉=300h, exposure to weather(ing) 12 months is non-foaming, non-corrosive, do not ftracture, do not peel off.
Embodiment 2
Raw material consumption (wt%)
Resins, epoxy E-12 40
Novolac epoxy GT-7255 5
Phenols curing agent PSG-01 10
Curing catalyst 0.3
Flow agent 503 2.8
Toughner PVB 1.5
Air release agent 0.2
Flow improver additive 0.2
Ultra-fine barium sulfate 20
Zinc powder 20
By melt extruding the hybrid system preparation, can obtain epoxy resin and zinc-enriched heavy anti-corrosive by above-mentioned prescription.0 grade of its coating adhesion, shock strength 80cm, salt-fog resistant time 〉=2000h, artificial accelerated aging time 〉=250h, exposure to weather(ing) 12 months is non-foaming, non-corrosive, do not ftracture, do not peel off.
Embodiment 3
Raw material consumption (wt%)
Resins, epoxy E-12 38
Novolac epoxy GT-7255 3
Phenols curing agent 5
Curing catalyst 1.4
Flow agent 503 1.3
Toughner PVB 0.3
Air release agent 0.1
Flow improver additive 0.1
Ultra-fine barium sulfate 0.8
Zinc powder 50
By melt extruding the hybrid system preparation, can obtain epoxy resin and zinc-enriched heavy anti-corrosive by above-mentioned prescription.1 grade of its coating adhesion, shock strength 〉=50cm, salt-fog resistant time 〉=3000h, artificial accelerated aging time 〉=500h, exposure to weather(ing) 12 months is non-foaming, non-corrosive, do not ftracture, do not peel off.
Claims (10)
1. epoxy resin and zinc-enriched heavy anti-corrosive is characterized in that it is made by following raw materials by weight percent:
Resins, epoxy 25-60%, novolac epoxy 2-15%, solidifying agent 3-10%, curing catalyst 0.05-0.5%, flow agent 503 1-3%, toughner PVB 0.2-2%, air release agent 0.1-0.5%, flow improver additive 0.1-0.2%, zinc powder 20-50%, filler 0-20%.
2. method for preparing the described epoxy resin and zinc-enriched heavy anti-corrosive of claim 1, it is characterized in that adopting melt extrude hybrid system or fusion high-speed stirring hybrid system with the dispersed mixture of zinc powder, Resins, epoxy, novolac epoxy, flow agent carry out the fusion dispersion, pre-dispersed mixture is made in the roll-in cooling in flakes, then with pre-dispersed mixture and solidifying agent, curing catalyst, toughner, air release agent, flow improver additive, filler together through premix, extrude, compressing tablet, abrasive dust, sieve epoxy resin and zinc-enriched heavy anti-corrosive.
3. epoxy resin and zinc-enriched heavy anti-corrosive according to claim 1 is characterized in that zinc powder is a flakey, particle diameter 1-20 μ m.
4. epoxy resin and zinc-enriched heavy anti-corrosive according to claim 1 is characterized in that solidifying agent is the phenols hardener for epoxy resin.
5. epoxy resin and zinc-enriched heavy anti-corrosive according to claim 1 is characterized in that curing catalyst is imidazoles or ring miaow based epoxy resin solidifying agent.
6. epoxy resin and zinc-enriched heavy anti-corrosive according to claim 1 is characterized in that air release agent is a micro mist wax.
7. epoxy resin and zinc-enriched heavy anti-corrosive according to claim 1 is characterized in that flow improver additive is aerosil or aluminum oxide C.
8. epoxy resin and zinc-enriched heavy anti-corrosive according to claim 1 is characterized in that filler is a ultra-fine barium sulfate.
9. preparation method according to claim 2, it is characterized in that melt extruding hybrid system and be blending dispersion thing with zinc powder, Resins, epoxy, novolac epoxy, flow agent be added in the screw extrusion press extrude, more broken thing melt extruded once more behind the compressing tablet, fragmentation, compressing tablet, fragmentation, so repeat to melt extrude, compressing tablet, broken operation repeatedly make pre-dispersed mixture, preceding warm 90-100 ℃ of forcing machine, warm 120-130 ℃ of back, material melt extrudes, compressing tablet, broken repetitive operation accumulative total 2-5 time, mixing of materials accumulated time 60-300s.
10. the preparation method of epoxy resin and zinc-enriched heavy anti-corrosive according to claim 2, it is characterized in that fusion high-speed stirring hybrid system is with Resins, epoxy, novolac epoxy, flow agent, the dispersed mixture of zinc powder or add successively separately and have mechanical stirring, thermometer, in the stainless steel cauldron of heating jacket, material is heated to 130-160 ℃ to be melted until resin, and maintain 130-160 ℃, simultaneously with the material high-speed stirring, at 130-160 ℃ of following dispersed with stirring 0.5-1h, pour into then in the big aluminum square position and cool off, fragmentation is pre-dispersed mixture.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200410041101XA CN100341965C (en) | 2004-06-24 | 2004-06-24 | Epoxy zinc-enriched antiseptic powdery paint and production thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410041101XA CN100341965C (en) | 2004-06-24 | 2004-06-24 | Epoxy zinc-enriched antiseptic powdery paint and production thereof |
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| CN1712473A true CN1712473A (en) | 2005-12-28 |
| CN100341965C CN100341965C (en) | 2007-10-10 |
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| WO2007138396A1 (en) * | 2006-05-29 | 2007-12-06 | Basf Coatings Japan Ltd. | A multilayer coating film forming method and a coated product using said method |
| CN1869137B (en) * | 2006-04-30 | 2010-06-23 | 刘建卡 | Multiple anticorrosion paint |
| CN101643611B (en) * | 2008-08-05 | 2012-01-25 | 上海海隆赛能新材料有限公司 | Steel pipe epoxy anti-corrosion powder low-temperature curing coating for over-X80 grade oil and gas pipes |
| CN102786866A (en) * | 2011-05-19 | 2012-11-21 | 安徽华辉塑业科技有限公司 | Metal door dedicated thin-coating thermosetting powder coating |
| CN101560355B (en) * | 2008-04-14 | 2012-12-12 | 徐州正菱涂装工程技术研究中心 | Heavy anti-corrosion antirust powder paint |
| CN102993901A (en) * | 2012-11-26 | 2013-03-27 | 安徽西格尔涂料科技有限公司 | Method for preparing epoxy zinc-rich heavy-duty anticorrosive coating |
| CN102993914A (en) * | 2012-12-19 | 2013-03-27 | 上海邦中新材料有限公司 | Anti-corrosion powder coating for automobile |
| CN103131297A (en) * | 2013-02-03 | 2013-06-05 | 倪进培 | Powder coating with trioctyl trimellitate |
| CN103333580A (en) * | 2013-05-30 | 2013-10-02 | 蚌埠市鸿安精密机械有限公司 | Aging-resistance epoxy phenolic resin powder coating and preparation method thereof |
| CN103382353A (en) * | 2013-07-08 | 2013-11-06 | 吴江市物华五金制品有限公司 | Heavy-duty anticorrosion environmental-friendly enhanced powder coating |
| CN103497634A (en) * | 2013-09-03 | 2014-01-08 | 安徽普源分离机械制造有限公司 | Epoxy zinc-rich anticorrosive powdery paint |
| CN103820004A (en) * | 2014-02-17 | 2014-05-28 | 湖南至诚涂料有限公司 | Preparation method of anticorrosive powder paint and product thereof |
| CN104607377A (en) * | 2015-02-04 | 2015-05-13 | 广东美的暖通设备有限公司 | Metal tank for air conditioner outdoor unit and anti-corrosion treatment process of metal tank |
| CN106085125A (en) * | 2016-07-26 | 2016-11-09 | 立邦涂料（天津）有限公司 | A kind of high salt fog resistance powdery paints, preparation method and its usage |
| CN108047877A (en) * | 2017-12-01 | 2018-05-18 | 成都信达高分子材料有限公司 | A kind of fine arts type epoxy resin zinc-rich anti-corrosive powder paint |
| CN108373750A (en) * | 2016-11-16 | 2018-08-07 | 镇江市润州金山金属粉末厂 | A kind of corrosion-resistant metal powdery paints |
| CN109778699A (en) * | 2019-01-21 | 2019-05-21 | 上海岐海防腐工程技术有限公司 | A kind of sealing of main rope of suspension bridge is wrapped long-lasting protection structure and its construction method |
| CN112625539A (en) * | 2020-12-01 | 2021-04-09 | 河北汉光重工有限责任公司 | Epoxy zinc-based anticorrosive powder coating for roads and preparation thereof |
| CN113881315A (en) * | 2021-10-28 | 2022-01-04 | 江苏卓奇新材料科技有限公司 | Hyperbranched modified epoxy powder coating and preparation method thereof |
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| JP2991293B2 (en) * | 1998-04-08 | 1999-12-20 | 丸尾カルシウム株式会社 | Zinc rich paint composition |
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| WO2007138396A1 (en) * | 2006-05-29 | 2007-12-06 | Basf Coatings Japan Ltd. | A multilayer coating film forming method and a coated product using said method |
| CN101560355B (en) * | 2008-04-14 | 2012-12-12 | 徐州正菱涂装工程技术研究中心 | Heavy anti-corrosion antirust powder paint |
| CN101643611B (en) * | 2008-08-05 | 2012-01-25 | 上海海隆赛能新材料有限公司 | Steel pipe epoxy anti-corrosion powder low-temperature curing coating for over-X80 grade oil and gas pipes |
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| CN102993901A (en) * | 2012-11-26 | 2013-03-27 | 安徽西格尔涂料科技有限公司 | Method for preparing epoxy zinc-rich heavy-duty anticorrosive coating |
| CN102993914B (en) * | 2012-12-19 | 2015-02-25 | 上海邦中新材料有限公司 | Anti-corrosion powder coating for automobile |
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| CN103131297A (en) * | 2013-02-03 | 2013-06-05 | 倪进培 | Powder coating with trioctyl trimellitate |
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| CN108373750A (en) * | 2016-11-16 | 2018-08-07 | 镇江市润州金山金属粉末厂 | A kind of corrosion-resistant metal powdery paints |
| CN108047877A (en) * | 2017-12-01 | 2018-05-18 | 成都信达高分子材料有限公司 | A kind of fine arts type epoxy resin zinc-rich anti-corrosive powder paint |
| CN109778699A (en) * | 2019-01-21 | 2019-05-21 | 上海岐海防腐工程技术有限公司 | A kind of sealing of main rope of suspension bridge is wrapped long-lasting protection structure and its construction method |
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| CN112625539A (en) * | 2020-12-01 | 2021-04-09 | 河北汉光重工有限责任公司 | Epoxy zinc-based anticorrosive powder coating for roads and preparation thereof |
| CN113881315A (en) * | 2021-10-28 | 2022-01-04 | 江苏卓奇新材料科技有限公司 | Hyperbranched modified epoxy powder coating and preparation method thereof |
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