CN101705043A - Solvent-free epoxy coating - Google Patents
Solvent-free epoxy coating Download PDFInfo
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- CN101705043A CN101705043A CN200910035814A CN200910035814A CN101705043A CN 101705043 A CN101705043 A CN 101705043A CN 200910035814 A CN200910035814 A CN 200910035814A CN 200910035814 A CN200910035814 A CN 200910035814A CN 101705043 A CN101705043 A CN 101705043A
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Abstract
The invention provides a solvent-free epoxy coating, which is prepared by grinding and stirring the following components in part by weight: 30 to 70 parts of epoxy resin, 2 to 20 parts of toughening agent, 15 to 50 parts of color filler, and 0.2 to 5 parts of auxiliary agent. The solvent-free epoxy coating adopts the epoxy resin as a film-forming material, and because any reactive diluent is not added at all, the solvent-free epoxy coating is not volatile, has the water absorption of less than 0.6 percent, good chemical stability, strong adhesive force and high hardness. The solvent-free epoxy coating is very convenient in construction, can be used for brush painting after an initiator and a promoter is added in the solvent-free epoxy coating and the mixture is stirred evenly, and after the solvent-free epoxy coating is coated on a steel pipe and is solidified, the impact strength of the steel pipe can reach over 30 Kg.cm.
Description
Technical field
The present invention relates to a kind of coating, relate in particular to a kind of solventless epoxy coating.
Background technology
In the prior art, generally form in the coating by film-forming resin, thinner, auxiliary agent and/or auxiliary material etc.The corrosion-resisting function of coating mainly contains shielding effect, passivation corrosion inhibition and electro-chemical protection effect, and the coating that is coated on the metallic surface is kept apart corrosive medium, plays corrosion-resisting function.But general anticorrosive coating all contains solvent, and the volatilization of solvent forms pin hole in film process, water, oxygen and corrosive medium is produced infiltration cause underfilm corrosion.Corrosion product expands coating is broken, and medium spreads around being coated with course, causes the coating fall in flakes, loses the rot-resistant effect.
Along with development and national economy, the raising of living standards of the people, the reinforcement of environment aspect legislation, environmental protection requirement has produced great influence to coating, produces the gaseous effluent of Greenhouse effect when the most important thing is to require to reduce or eliminate the use of volatile organic compounds poisonous, harmful, inflammable, explosive in coating and paint solidification.
Resins, epoxy is because of containing the polarity high not aliphatic hydroxyl and the ehter bond of facile hydrolysis, characteristics such as its paint film has that sticking power is good, chemical-resistant is high, physical and mechanical properties and water-tolerant, its anticorrosive coating in the bay, ocean exploitation engineering, Ship Building and Repairing, power station, bridge, field of petrochemical industry obtained widespread use.Simultaneously because after Resins, epoxy and the amine curing agent curing, its paint film reality is nontoxic, thereby require nontoxic occasion, use epoxy coating mostly many.
Though the epoxy anticorrosion coating weathering resistance is bad, the easy efflorescence loss of gloss of paint film in atmosphere, but the complete flawless of paint film, etch resistant properties is good, hardness is high, good springiness, strong adhesion, good combination properties such as acid-and base-resisting, salt, seawater, industrial sewage, oil fuel, and resistance toheat is also better.Existing epoxy anticorrosion coating is mainly used in the cabin of application oil tank, storage tank, tank car, pipeline, offshore oil production equipment, dress oil etc.But existing non-solvent epoxy anticorrosive coating is when being applied to oil transportation steel pipe welded junction part anticorrosion, and the performance of aspects such as paint film planeness, sticking power and snappiness can not reach requirement.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide a kind of and can be used for that steel pipe welded junction part rot-resistant paint film is smooth, strong adhesion and the good solventless epoxy coating of snappiness.
The object of the present invention is achieved like this: a kind of solventless epoxy coating is mixed for 0.2～5 part by 30～70 parts of Resins, epoxy, 2～20 parts of toughner, 15～50 parts of color stuffings and auxiliary agent, in weight part.The present invention as film forming material, as required adds toughner, auxiliary agent and color stuffing not adding under any reactive thinner condition with Resins, epoxy, grinds to stir to obtain product of the present invention.
Described Resins, epoxy be in bisphenol A type epoxy resin, novolac epoxy and the bisphenol f type epoxy resin any one or multiple, wherein, the consumption of described novolac epoxy is no more than 50% of Resins, epoxy total amount, in weight part;
Described toughner is thiorubber, nano silicon or isoprene-isobutylene rubber, can improve after adding toughner that its snappiness is poor, problems such as poor in processability, paint film are crisp, resistance to impact shock difference;
Described color stuffing is the mixture of pigment and filler, and described filler is the thermotolerance weighting agent, guarantees that coating can keep performance not descend under hot conditions;
Described auxiliary agent is any one or a few in defoamer, flow agent, dispersion agent, coupling agent, stopper and the polishing agent.
Among the present invention, described pigment is generally selected any one or a few in carbon black, titanium dioxide, iron oxide red, mica powder and the Rutile type Titanium Dioxide for use; Described filler is generally selected any one or a few in talcum powder, barium sulfate, zinc phosphate, iron mica, aerosil and the Zinic stearas for use.
Among the present invention, the preferred organic silicone defoamer of described defoamer; The preferred organic silica flow agent of described flow agent.
Beneficial effect of the present invention is:
1, product of the present invention adopts Resins, epoxy as film forming material, owing to do not add any reactive thinner, non-volatile and water-intake rate is below 0.6%, and its chemical stability is good, strong adhesion, hardness height; Very convenient when solventless epoxy coating of the present invention is constructed, stir after adding initiator and the promotor and promptly can brush, the resistance to impact shock of coating after steel pipe solidifies can reach more than the 30Kgcm;
2, product performance of the present invention are splendid, brush with routine, and solid content priming paint generally can reach more than 95%, and organic volatile does not have substantially, and is minimum to the contaminative of atmospheric environment; Because the characteristic of super-high solid content and ultra-low viscosity is arranged, do not need reactive thinner to construct, brush and to reach the above film thickness of 100 μ m for one time, and epoxypaint is in the past brushed the film thickness that only has about 50 μ m for a time, the production efficiency when as seen using coating of the present invention can improve coating greatly;
3, product of the present invention is the liquid coating of fast-drying type, and easy construction need not to upgrade paint line, brushes to get final product; Compare with existing epoxypaint with regard to product of the present invention, the results are shown in Table 1:
Table 1 the present invention and contrast time of drying of existing epoxypaint
| Project | Existing epoxypaint | Product of the present invention |
| Conventional film (20 μ m), room temperature is done solid work the time | ??24h | ??14h |
| Former film, room temperature is done solid work the time | ??168h | ??28h |
| Conventional film (20 μ m), drying time | ??120℃1h | ??60℃30min |
| Former film, drying time | ??120℃3h | ??60℃90min |
3. product of the present invention has good paint film adhesion, and snappiness is good, and impact resistance is good, and has good salt spray resistance, water-fast, acidproof, alkaline-resisting, ageing-resistant performance, makes comparisons with product of the present invention and existing epoxypaint, the results are shown in Table 2:
Table 2 the present invention and existing epoxypaint performance comparison
| Project | Existing epoxypaint | Product of the present invention |
| Salt fog resistance | 168-300h passes through one-level | Pass through one-level more than the 1000h |
| Oil-proofness | The 5-48h outward appearance does not have considerable change | The 48-168h outward appearance does not have considerable change |
| Project | Existing epoxypaint | Product of the present invention |
| Petrol-resistance | 8-16h is non-foaming, wrinkle resistant | 16-40h is non-foaming, wrinkle resistant |
| Acid resistance | ??7-10h | ??10-30h |
| Alkali resistance | ??7-10h | ??10-30h |
| Humidity resistance | ??96-120h | ??120-300h |
4. coating provided by the invention can be used for the anticorrosion usefulness of oil transportation steel pipe weld bond, and can keep the every performance under its normal temperature constant under hot conditions, can be used for the baking more than 120 ℃ and other change does not take place.
Embodiment
Mode below by embodiment is elaborated to technical solution of the present invention, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1
A kind of solventless epoxy coating is characterized in that: by 50 parts of Resins, epoxy, 10 parts of toughner, 5 parts of pigment, 15 parts of fillers and auxiliary agent grind for 2 parts to stir and obtain, in weight part;
Described Resins, epoxy is bisphenol A type epoxy resin; Described toughner is thiorubber; Described pigment is iron oxide red; Described filler is a talcum powder; Described auxiliary agent is organic silicone defoamer, organosilicon oxygen flow agent, dispersion agent, coupling agent, stopper and polishing agent.
Embodiment 2～6
A kind of solventless epoxy coating, its component, content and performance perameter see Table 3, and other is with embodiment 1.
Each component, content and performance perameter among table 3 embodiment 2～6, content is in weight part
Claims (4)
1. a solventless epoxy coating is characterized in that: grind stirring for 0.2～5 part by 30～70 parts of Resins, epoxy, 2～20 parts of toughner, 15～50 parts of color stuffings and auxiliary agent and form, in weight part.
2. solventless epoxy coating according to claim 1, it is characterized in that: described Resins, epoxy be in bisphenol A type epoxy resin, novolac epoxy and the bisphenol f type epoxy resin any one or multiple, wherein, the consumption of described novolac epoxy is no more than 50% of Resins, epoxy total amount, in weight part;
Described toughner is thiorubber, nano silicon or isoprene-isobutylene rubber;
Described color stuffing is the mixture of pigment and filler, and described filler is the thermotolerance weighting agent;
Described auxiliary agent is any one or a few in defoamer, flow agent, dispersion agent, coupling agent, stopper and the polishing agent.
3. solventless epoxy coating according to claim 2 is characterized in that: described pigment is any one or a few in carbon black, titanium dioxide, iron oxide red, mica powder and the Rutile type Titanium Dioxide; Described filler is any one or a few in talcum powder, barium sulfate, zinc phosphate, iron mica, aerosil and the Zinic stearas.
4. solventless epoxy coating according to claim 2 is characterized in that: described defoamer is the organic silicone defoamer; Described flow agent is an organosilicon oxygen flow agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035814A CN101705043A (en) | 2009-09-23 | 2009-09-23 | Solvent-free epoxy coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035814A CN101705043A (en) | 2009-09-23 | 2009-09-23 | Solvent-free epoxy coating |
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| Publication Number | Publication Date |
|---|---|
| CN101705043A true CN101705043A (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910035814A Pending CN101705043A (en) | 2009-09-23 | 2009-09-23 | Solvent-free epoxy coating |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367354A (en) * | 2011-08-26 | 2012-03-07 | 江苏达胜热缩材料有限公司 | Solvent-free epoxy primer for corrosion protection of 3 polypropylene (PP) at craters of steel pipelines |
| CN102382553A (en) * | 2011-08-26 | 2012-03-21 | 江苏达胜热缩材料有限公司 | Solvent-free epoxy primer for high temperature corrosion prevention of steel pipeline welded junction position |
| CN102964963A (en) * | 2012-11-05 | 2013-03-13 | 江门四方威凯精细化工有限公司 | Anti-corrosion heat-conducting coating for heat exchanger and preparation method of coating |
| CN103509438A (en) * | 2013-09-22 | 2014-01-15 | 上海海隆石油化工研究所 | Low-temperature fast-curing hydrogen sulfide-resistant solvent-free paint for pipes and preparation method thereof |
| CN103525242A (en) * | 2013-09-28 | 2014-01-22 | 芜湖中集瑞江汽车有限公司 | Epoxy middle-temperature-curing anti-rust paint and preparation method thereof |
| CN103740193A (en) * | 2013-12-18 | 2014-04-23 | 江苏富邦纺织有限公司 | Vinylidene chloride coating |
| CN103980793A (en) * | 2013-02-07 | 2014-08-13 | 李清 | New solventless epoxy coating |
| CN104371486A (en) * | 2014-10-31 | 2015-02-25 | 无锡阳工机械制造有限公司 | Coating for inner wall of water supply pipe |
| CN104371485A (en) * | 2014-10-31 | 2015-02-25 | 无锡阳工机械制造有限公司 | Coating for inner wall of water supply pipe |
| CN104530915A (en) * | 2015-01-21 | 2015-04-22 | 海安县国力化工有限公司 | Transparent priming paint formula |
| CN105176307A (en) * | 2015-09-24 | 2015-12-23 | 天津米一科技有限公司 | Silylation blended epoxy group low surface treatment coating |
| CN105176306A (en) * | 2015-09-24 | 2015-12-23 | 天津米一科技有限公司 | Multifunctional 100% solid content amino silicone crosslinked epoxy coating |
| CN105199566A (en) * | 2015-11-04 | 2015-12-30 | 济南思拓新源医药科技有限公司 | Coating and preparation method thereof |
| CN106590337A (en) * | 2016-12-09 | 2017-04-26 | 钦州太平电子科技有限公司 | Anticorrosive coating material and preparation method therefor |
| CN106893453A (en) * | 2017-04-01 | 2017-06-27 | 西安天元合成材料有限公司 | The formula and preparation method of a kind of nanometer of anticorrosive paint |
| CN112280361A (en) * | 2020-11-26 | 2021-01-29 | 湖南固特邦土木技术发展有限公司 | Solvent-free spraying type epoxy putty |
| CN115717016A (en) * | 2022-12-01 | 2023-02-28 | 河南省阳光防腐涂装有限公司 | Epoxy coating production equipment and process |
-
2009
- 2009-09-23 CN CN200910035814A patent/CN101705043A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382553A (en) * | 2011-08-26 | 2012-03-21 | 江苏达胜热缩材料有限公司 | Solvent-free epoxy primer for high temperature corrosion prevention of steel pipeline welded junction position |
| CN102367354A (en) * | 2011-08-26 | 2012-03-07 | 江苏达胜热缩材料有限公司 | Solvent-free epoxy primer for corrosion protection of 3 polypropylene (PP) at craters of steel pipelines |
| CN102964963B (en) * | 2012-11-05 | 2015-03-04 | 江门四方威凯精细化工有限公司 | Anti-corrosion heat-conducting coating for heat exchanger and preparation method of coating |
| CN102964963A (en) * | 2012-11-05 | 2013-03-13 | 江门四方威凯精细化工有限公司 | Anti-corrosion heat-conducting coating for heat exchanger and preparation method of coating |
| CN103980793A (en) * | 2013-02-07 | 2014-08-13 | 李清 | New solventless epoxy coating |
| CN103509438A (en) * | 2013-09-22 | 2014-01-15 | 上海海隆石油化工研究所 | Low-temperature fast-curing hydrogen sulfide-resistant solvent-free paint for pipes and preparation method thereof |
| CN103509438B (en) * | 2013-09-22 | 2015-11-18 | 上海海隆石油化工研究所 | Pipeline low-temperature fast-curing anti-H 2 S solventless coatings and preparation method thereof |
| CN103525242A (en) * | 2013-09-28 | 2014-01-22 | 芜湖中集瑞江汽车有限公司 | Epoxy middle-temperature-curing anti-rust paint and preparation method thereof |
| CN103740193A (en) * | 2013-12-18 | 2014-04-23 | 江苏富邦纺织有限公司 | Vinylidene chloride coating |
| CN104371485A (en) * | 2014-10-31 | 2015-02-25 | 无锡阳工机械制造有限公司 | Coating for inner wall of water supply pipe |
| CN104371486A (en) * | 2014-10-31 | 2015-02-25 | 无锡阳工机械制造有限公司 | Coating for inner wall of water supply pipe |
| CN104530915A (en) * | 2015-01-21 | 2015-04-22 | 海安县国力化工有限公司 | Transparent priming paint formula |
| CN105176307A (en) * | 2015-09-24 | 2015-12-23 | 天津米一科技有限公司 | Silylation blended epoxy group low surface treatment coating |
| CN105176306A (en) * | 2015-09-24 | 2015-12-23 | 天津米一科技有限公司 | Multifunctional 100% solid content amino silicone crosslinked epoxy coating |
| CN105199566A (en) * | 2015-11-04 | 2015-12-30 | 济南思拓新源医药科技有限公司 | Coating and preparation method thereof |
| CN106590337A (en) * | 2016-12-09 | 2017-04-26 | 钦州太平电子科技有限公司 | Anticorrosive coating material and preparation method therefor |
| CN106893453A (en) * | 2017-04-01 | 2017-06-27 | 西安天元合成材料有限公司 | The formula and preparation method of a kind of nanometer of anticorrosive paint |
| CN112280361A (en) * | 2020-11-26 | 2021-01-29 | 湖南固特邦土木技术发展有限公司 | Solvent-free spraying type epoxy putty |
| CN115717016A (en) * | 2022-12-01 | 2023-02-28 | 河南省阳光防腐涂装有限公司 | Epoxy coating production equipment and process |
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Open date: 20100512 |