CN102417780B - Anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline - Google Patents
Anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline Download PDFInfo
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- CN102417780B CN102417780B CN201110308630.1A CN201110308630A CN102417780B CN 102417780 B CN102417780 B CN 102417780B CN 201110308630 A CN201110308630 A CN 201110308630A CN 102417780 B CN102417780 B CN 102417780B
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Abstract
The invention relates to the technical field of coatings, in particular to an anti-drag wear-resistant solvent-free coating with low-viscosity for a pipeline. The anti-drag wear-resistant solvent-free coating with the low-viscosity comprises a component A and a component B, wherein the component A comprises epoxy resin, an active diluent, a flatting agent, an antifoaming agent, a dispersant, a thixotropic agent 1, a thixotropic agent 2, zinc phosphate, silica, iron oxide red powder, aluminum triphosphate and white pottery powder; the component B comprises modified amine and a thixotropic synergistic agent; and the component A and the component B are used together in the mass ratio of (3-5):1. The solvent-free coating with the low-viscosity has the positive effects of freeness from volatilizable solvent, capability of eliminating coating pin holes, high adhesion, high permeation resistance, high wear resistance, high corrosion resistance, smooth coating surface after being sprayed, good anti-drag and wear-resisting effects, and popularization and application prospects.
Description
Technical field
The present invention relates to the technical field of coatings of Chemical Engineering Technology, specifically, relate to a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline and preparation method thereof and this solventless coatings and apply the method for (spraying) in large-scale pipeline.
Background technology
Large-scale pipeline of the present invention refers to that the heavy caliber length of diameter more than 500mm of using in oil field is apart from the petroleum and natural gas transport pipe, for guaranteeing the transporting resistance of the antirust, anticorrosion of these pipelines and reduction pipeline inner fluid, usually to use special coating.What the present invention related generally to is the anti-drag paint in pipeline, therefore, just no longer other coating has been discussed.
The research of pipeline coating drag reduction technology started from for 20 beginnings of the century, and large-scale application is in the 1950's in long distance gas pipeline.Through the application development of decades, coating material production and the operating technique of pipeline coating reach its maturity.The more advanced American-European countries at the natural gas line conveying technology, the pipeline coating drag reduction technology is widely used.External many large day footpath, long apart from natural gas line (as the Maghreb pipeline across European, the longest submerged pipeline Zeepipe and the Alliance Pipeline (Alliance Pipeline) recently built up etc. in the world) owing to having adopted technique, not only guarantee the safe operation of pipeline, and obtained extraordinary economic benefit.
The research of pipeline coating drag reduction utilisation technology is at the early-stage in China, larger with external gap.Along with the outer planning construction of many long distances such as defeated, heavy caliber natural gas line of transfering natural gas from the west to the east and Natural Gas in Sichuan, the pipeline coating drag reduction technology will be subject to increasing attention, and extremely wide application prospect is arranged.
In existing (domestic) large-scale pipeline, anti-drag paint is solvent based coating.And the deficiency of solvent based coating is: VOC content is high, to the moisture sensitivity in environment, and the less stable that the operability of construction and coating store, paint film easily bubbles, main, solvent based coating not environmental protection usually.Along with the restriction of organic volatile in the large-scale pipeline coating to using in these fields, solvent based coating will be replaced by environment-friendly type coating gradually, and solventless coatings will be one of main Types of environment-friendly type coating.
The advantage of solventless coatings is: because of solvent-free volatilization in paint film, can eliminate the pin hole in coating, improve paint film impermeabilisation and corrosion resistant performance; Can eliminate the danger of the poisoning and working-yard presence of fire of operator, can reduce the use of ventilation installation, can avoid solvent evaporates and the resource that causes is wasted and reduce the impact on environment.But solventless coatings also has shortcoming, comparatively outstanding is that dope viscosity is larger, constructs not very convenient, during spraying, need to be heated coating; Because viscosity is larger, be difficult to obtain thinner coating, often be applicable to thick painting.
Therefore, of the present invention is the solventless coatings of a kind of low viscosity (viscosity of 6r/min is 6000-8000mps 25 ℃ the time), even construction does not need heating yet in winter; And because viscosity is lower, can obtain thinner coating (60-80 micron), can reach the requirement of the pipeline use drag-reducing wear-resistant paint that film forming is thinner; Although viscosity is low, can reach the requirement of its anti-settling (50 ℃ baking oven in place do not sink to the bottom in 2 months) and anti-sag (60 ℃ can reach 150 microns not saggings).
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline is provided; The second purpose of the present invention is to provide the preparation method of described anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline; The 3rd purpose of the present invention is to provide the application method of described anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline, in solventless coatings is applied to the petroleum and natural gas transport pipe as the coating of drag-reducing abrasion-resisting.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline, is characterized in that, comprises A component and B component, and the mass percent of A component and B component raw material is respectively:
The A component:
Epoxy resin 35.0～55.0%;
Reactive thinner 12.0～25.0%;
Flow agent 0.2～0.5%;
Defoamer 0.2～0.5%;
Dispersion agent 0.4～0.8%;
Thixotropic agent 1 0.2～1.0%;
Thixotropic agent 2 0.1～0.5%;
Zinc phosphate 4.0～8.0%;
Tripoli 4.0～8.0%;
Ferric oxide red powder 8.0～15.0%;
Aluminium triphosphate 5.0～15.0%;
White pottery magnetic 5.0～15.0%;
The B component:
Modified amine 99.0～99.8%;
Thixotroping synergistic agent 0.2～1.0%;
Described A component and B component be A: B=3～be used in conjunction with at 5: 1 in mass ratio.
Described epoxy resin is E-51, CYD128,828 or at least one in the similar epoxy resin of epoxy equivalent (weight) with it.
Described reactive thinner is one or both in multi-functional glycidyl ether resin, epoxy propane butyl ether, ethylene glycol diglycidylether.
Described flow agent is silicone based BYK 320; Described defoamer is for containing silicone based BYK A-530 defoamer; Described dispersion agent is BYK P-104S.
Described thixotropic agent 1 is the polynite class thixotropic agent Rockwood 1958 containing organolithium; Described thixotropic agent 2 is aerosil N-200.
The epoxy curing agent that described modified amine is phenol aldehyde modified amine.
Described thixotroping synergistic agent is liquid thixotropy toughener BYK-R605 for the wetting ability aerosil.
The Nuo Yibao tripoli that described tripoli provides for Shanghai Shou Nuo trade Co., Ltd.
The positively effect of a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline of the present invention is:
(1) adopt the rubber modified epoxy resin of the epoxy resin toughened of modification dimerization acids or end carboxyl and adopt phenol aldehyde modified amine as solidifying agent, the multiple rust-stabilising pigment system of compound use, make this coating that good sticking power, snappiness and salt spray resistance, solvent resistance be arranged;
(2) in this coating A component, the content of reactive thinner is 12.0～25.0%, and generally the content of solventless coatings reactive thinner is no more than 10%.But the composite use due to thixotropic agent 1 in this coating and thixotropic agent 2, collocation simultaneously has the Nuo Yibao tripoli of thixotropic transformation equally, making the viscosity at 6r/min under A component room temperature is 5000-8000mps, and the viscosity of 60r/min is 1600-2600mps, and thixotropy index is greater than 3.The solventless coatings of its viscosity ratio routine (viscosity of general 6r/min is more than 20000mps) is much lower, can also guarantee to place 2 months simultaneously without obviously sinking to the bottom in 50 ℃ of baking ovens.
(3) if will reach the not requirement of sagging more than 150 microns in 60 ℃ of situations, A component viscosity at least will be more than 20000mps.But owing to having added the thixotroping synergistic agent in the B component, can guarantee A component and B component mix after its not sagging of filming in 60 ℃ more than 150 microns;
(4) after this paint spay-coating, coatingsurface is very smooth, more than mirror surface luster reaches 80 (Gardiner60 °) (external product requires >=50), surface roughness Ra≤3 μ m (external product requires Ra≤5 μ m), wearing coefficient >=28 (external product requires >=23) has better drag-reducing abrasion-resisting effect than common solvent-borne type anti-drag paint;
(5) because this coating does not contain any volatile solvent, the coating pin hole be can eliminate, permeability resistance, wear resistance and corrosion resistance nature improved;
(6) can eliminate actual bodily harm that the workmen is caused and the danger of working-yard presence of fire, can reduce the use of ventilation installation, avoid solvent evaporates and the wasting of resources that causes, reduce the impact on environment, thereby there is the prospect of applying.
Embodiment
Below provide the embodiment of a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline of the present invention, still, it should be pointed out that enforcement of the present invention is not limited to following embodiment.
The preparation process of a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline of the present invention is:
(1) batching
Configure respectively the raw material of A component and B component by the mass percent of each component raw material;
(2) disperse
The A component that step (1) is prepared (or B component) adds in scuffing of cylinder bore successively, starts dispersion machine simultaneously and is stirred by the rotating speed of 300～600 rev/mins, adds while stirring raw material; Raw material carries out the stirring of 30～50 minutes after adding by the rotating speeds of 1000～1200 rev/mins, obtain A component (or the B component) compound disperseed;
(3) grind
The A component compound that step (2) is obtained is put into sand mill and is carried out sand milling, and fineness reaches below 40 microns;
The B component does not need to grind, and only B component compound need be stirred and gets final product in 40～60 minutes with the rotating speed of 300～600 rev/mins;
(4) filter and package
A component compound after sand milling is put into to the finished product still, open stirrer and stirred, in exit, filtering net is set, the packing of product is carried out on filtration limit, limit;
B component compound after stirring is carried out to the packing of product;
A component and B component must separately be packed.
The above preparation process of following basis provides 3 specific embodiments.
Embodiment 1
A kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline, comprise A component and B component, and the mass percent of A component and B component raw material is respectively:
The A component:
Epoxy resin 35.00%, the product of employing HongChang Electronic Materials Co., Ltd or China Petrochemical Industry's Yueyang petrochemical plant;
Reactive thinner 21.10%; Adopt the product of Ka Delai company;
Flow agent 0.33%, adopt the product of German Bi Ke chemical assistant company;
Defoamer 0.35%, adopt the product of German Bi Ke chemical assistant company;
Dispersion agent 0.60%, adopt the product of German Bi Ke chemical assistant company;
Thixotropic agent 1 1.00%, the product of employing Rockwood;
Thixotropic agent 2 0.28%, the product of employing Du Pont;
Zinc phosphate 11.50%, the product of employing Shanghai Yipin Pigments Co., Ltd.;
Tripoli 5.00%, the product of employing Shanghai Shou Nuo trade Co., Ltd
Ferric oxide red powder 12.00%, the product of employing Sanhuan Pigment Co., Ltd., Hunan Prov.;
Aluminium triphosphate 7.84%, the product of employing Shanghai Yipin Pigments Co., Ltd.;
White pottery magnetic 5.00%, adopt Shanghai to converge the product of smart inferior nano material company limited;
The B component:
Modified amine 99.50%, the product of employing Ka Delai company;
Thixotroping synergistic agent 0.50%, adopt the product of German Bi Ke chemical assistant company.
When coating is used by A component and B component A: B=5 in mass ratio: 1 ratio is used in conjunction with.
Embodiment 2
A kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline, comprise A component and B component, and the mass percent of A component and B component raw material is respectively:
A component: (employing of raw material is with embodiment 1)
Epoxy resin 43.00%;
Reactive thinner 16.00%;
Flow agent 0.30%;
Defoamer 0.32%;
Dispersion agent 0.50%;
Thixotropic agent 1 0.80%
Thixotropic agent 2 0.40%
Zinc phosphate 5.00%;
Tripoli 10.00%
Ferric oxide red powder 14.00%;
White pottery magnetic 4.50%
Aluminium triphosphate 5.18%;
The B component:
Modified amine 99.40%;
Thixotroping synergistic agent 0.60%.
When coating is used by A component and B component A: B=4 in mass ratio: 1 ratio is used in conjunction with.
Embodiment 3
A kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline, comprise A component and B component, and the mass percent of A component and B component raw material is respectively:
A component: (employing of raw material is with embodiment 1)
Epoxy resin 50.00%;
Reactive thinner 12.00%;
Flow agent 0.35%;
Defoamer 0.40%;
Dispersion agent 0.65%;
Thixotropic agent 1 0.60%;
Thixotropic agent 2 0.50%
Zinc phosphate 6.50%;
Tripoli 4.00%;
Ferric oxide red powder 14.00%;
Aluminium triphosphate 8.00%;
White pottery magnetic 3.00%;
The B component:
Modified amine 99.20%;
Thixotroping synergistic agent 0.80%.
When coating is used by A component and B component A: B=3 in mass ratio: 1 ratio is used in conjunction with.
The using method of a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline of the present invention in the petroleum and natural gas transport pipe is:
(1) A component and B component coating are stirred respectively 20～30 minutes under room temperature;
(2) the A component after step (1) is stirred and the B component coating ratio high pressure airless spray equipment short mix of A: B=3～5: 1 in mass ratio, with the pressure of 150～250 kilograms, on the petroleum and natural gas conveying pipeline inner wall, sprayed, the build of coating is controlled between 60～80 microns, or meets the thickness requirement of detailed programs.
The performance index of a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline of the present invention and coating are (seeing the following form):
Table. the performance index of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline and coating
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (3)
1. an anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline, is characterized in that, comprises A component and B component, and the mass percent of A component and B component raw material is respectively:
the A component:
Epoxy resin 35.0～55.0%, described epoxy resin is at least one in E-51, CYD128,828;
Reactive thinner 12.0～25.0%;
Flow agent 0.2～0.5%;
Defoamer 0.2～0.5%;
Dispersion agent 0.4～0.8%;
Thixotropic agent 1 0.2～1.0%, described thixotropic agent 1 is Rockwood 1958;
Thixotropic agent 2 0.1～0.5%, described thixotropic agent 2 is aerosil N-200;
Zinc phosphate 4.0～8.0%;
Tripoli 4.0～8.0%, the Nuo Yibao tripoli that described tripoli provides for Shanghai Shou Nuo trade Co., Ltd;
Ferric oxide red powder 8.0～15.0%;
Aluminium triphosphate 5.0～15.0%;
White ceramics powder 5.0～15.0%;
the B component:
Modified amine 99.0～99.8%, the epoxy curing agent that described modified amine is phenol aldehyde modified amine;
Thixotroping synergistic agent 0.2～1.0%, described thixotroping synergistic agent is liquid thixotropy toughener BYK-R605 for the wetting ability aerosil;
Described A component and B component A:B=3～5:1 in mass ratio are used in conjunction with.
2. according to the described a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline of right 1, it is characterized in that, described reactive thinner is one or both in multi-functional glycidyl ether resin, epoxy propane butyl ether, ethylene glycol diglycidylether.
3. according to the described a kind of anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline of right 1, it is characterized in that, described flow agent is silicone based BYK 320; Described defoamer is for containing silicone based BYK A-530 defoamer; Described dispersion agent is BYK P-104S.
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| CN201110308630.1A CN102417780B (en) | 2011-10-12 | 2011-10-12 | Anti-drag wear-resistant solvent-free coating with low-viscosity for pipeline |
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| CN102417780B true CN102417780B (en) | 2014-01-08 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820005B (en) * | 2012-11-16 | 2016-05-11 | 中国石油天然气集团公司 | A kind of anti-drag paint in non-solvent epoxy for natural gas line |
| CN102993913B (en) * | 2012-12-19 | 2015-09-23 | 上海海隆赛能新材料有限公司 | A kind of solvent free corrosion prevention coating for Directional Drilling poling road and preparation method thereof |
| CN103013284B (en) * | 2012-12-28 | 2015-03-18 | 上海海隆赛能新材料有限公司 | Anti-drag and anticorrosive water-based epoxy paint for natural gas pipe and preparation method of anti-drag and anticorrosive water-based epoxy paint |
| CN103589331A (en) * | 2013-10-12 | 2014-02-19 | 安徽自动化仪表有限公司 | Abrasion-proof heat dissipation dope for meter housings and preparation method of abrasion-proof heat dissipation dope |
| CN103709901B (en) * | 2013-12-26 | 2016-10-05 | 佛山市高明富力特化工有限公司 | A kind of Nanometer solvent-free epoxy antirust paint and preparation method thereof |
| CN105273572A (en) * | 2015-10-19 | 2016-01-27 | 重庆南方漆业有限公司 | Solvent-free epoxy pipe coating and preparation method thereof |
| WO2018210212A1 (en) * | 2017-05-16 | 2018-11-22 | 新兴河北工程技术有限公司 | Ductile iron pipe having anti-corrosion inner coating, and production process therefor |
| CN111662606A (en) * | 2019-03-05 | 2020-09-15 | 廊坊市立美防腐工程有限公司 | Solvent-free internal anti-drag coating and construction method thereof |
| CN110591505B (en) * | 2019-09-26 | 2021-07-13 | 中国海洋石油集团有限公司 | Thick-coating type water-based epoxy zinc-rich anticorrosive paint and preparation method thereof |
| CN114686075B (en) * | 2022-05-18 | 2023-04-07 | 哈尔滨雨阳佳泰环保新材料有限公司 | Solvent-free type natural gas pipeline internal resistance reducing coating and preparation method thereof |
| CN114854282B (en) * | 2022-05-18 | 2023-02-07 | 哈尔滨雨阳佳泰环保新材料有限公司 | Solvent-free in-pipeline drag reduction coating and preparation method thereof |
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| CN102010646A (en) * | 2010-12-30 | 2011-04-13 | 中远关西涂料化工（天津）有限公司 | Low-temperature quick-drying solvent-free epoxy coating for drinking water tank and preparation method thereof |
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| DE19935325A1 (en) * | 1999-07-28 | 2001-02-01 | Bayer Ag | Solvent-free, room temperature curing reactive systems and their use for the production of adhesives, sealants, casting compounds, molded parts or coatings |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102010646A (en) * | 2010-12-30 | 2011-04-13 | 中远关西涂料化工（天津）有限公司 | Low-temperature quick-drying solvent-free epoxy coating for drinking water tank and preparation method thereof |
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Denomination of invention: A drag reducing and wear-resistant solvent free coating for low viscosity pipelines Effective date of registration: 20230329 Granted publication date: 20140108 Pledgee: Industrial Bank Co.,Ltd. Shanghai Changning sub branch Pledgor: SHANGHAI HILONG SHINE NEW MATERIAL Co.,Ltd. Registration number: Y2023310000096 |
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