CN104494213A - Protective material for joint coating of outer erosion resistant layer of pipeline - Google Patents
Protective material for joint coating of outer erosion resistant layer of pipeline Download PDFInfo
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- CN104494213A CN104494213A CN201410776056.6A CN201410776056A CN104494213A CN 104494213 A CN104494213 A CN 104494213A CN 201410776056 A CN201410776056 A CN 201410776056A CN 104494213 A CN104494213 A CN 104494213A
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- pipeline
- overcoat
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- fiber
- butyl ether
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a general shape other than plane
- B32B1/08—Tubular products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0223—Vinyl resin fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/108—Rockwool fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/14—Mixture of at least two fibres made of different materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Pipe Accessories (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a protective material for joint coating of an outer erosion resistant layer of a pipeline. The protective material comprises a protective layer which covers the outer side of the pipeline and putty systems which are arranged at the two ends of the protective layer; the protective layer comprises a resin system and a fiber reinforcement body; the resin system comprises E51 epoxy resins, 2,4,6-tri(dimethylamino methyl) phenol accelerants, polyether amine D2000, polymercaptans and polymer epoxy propane butyl ether reactive diluents; the fiber reinforcement body is ultra high molecular weight polyethylene fiber, a carbon fiber, a glass fiber, a basalt fiber and a fabric made by the fibers; the fabric is non-woven cloth, plain cloth, twills and satin weave cloth; the putty systems comprise E51 epoxy resins, 2,4,6-tri(dimethylamino methyl) phenol accelerants, polyether amine D2000, polymercaptans, polymer epoxy propane butyl ether reactive diluents, silane coupling agents, flexibilizers and glass beads. The protective material has the characteristics of short curing time, high scratch resistance, high anti-bending strength and high impact strength and is convenient for construction.
Description
Technical field
The present invention relates to pipe-line system technical field, be specifically related to a kind of pipeline external anti-corrosion layer repaired mouth protective materials.
Background technology
Long distance pipeline directional drilling crossing technology has short construction period, the feature little to environmental perturbation, be applicable to the laying of the region buried pipelines such as railway, highway, river, be a kind of no-dig technique buried pipeline laying technology efficiently, be widely used in long distance pipeline construction at present.Directional Drilling for Pipeline Crossing has can not affect through section normal life and order of work, solves traditional excavation construction on resident living interference and on the destruction of environment and impact.Crossing pipeline outer anticorrosion with 3PE, FBE and shrink belt repaired mouth for main material; there is good anticorrosion and stronger shock resistance; but its scratch resistant performance is poor; often because through section soil property is hard, stone foreign matter, pass through hole not round and smooth, control to the reasons such as precision the is lower serious problems such as external anti-corrosion layer scratches, draw thoroughly, repaired mouth blows over that make pipeline occur; the body of injury region loses anticorrosive coat protection, very easily occurs corrosion or even perforation.Along with the large-scale application of Hi-grade steel tubing (X60 and more than), the rigidity of pipeline increases gradually, through elastic bending section, more easily damages anticorrosive coat and causes Corrosion Potential.Due to the particularity of crossing pipeline position, later stage repairing anticorrosion coating difficulty is very big, therefore, seems particularly necessary to the enhancing protection of crossing pipeline external anti-corrosion layer.
At present, crossing pipeline external anti-corrosion layer protective materials mainly adopts the protective materials of photocuring cover and glass fibre reinforced composion two type.Wherein photocuring cover guard technology once used in PetroChina Company Limited.'s unconcerned large line Heilungkiang through section, and this technology uses the short felt of light-cured resin preimpregnated glass fiber, makes glass fibre prepreg.During use, under lucifuge condition, be wrapped in pipeline anticorrosion coating outside, impel resin solidification by natural daylight or ultraviolet light, form the composite protection layer with stronger adhesion strength.But this technology exist material construction high, with pipeline 3PE anticorrosive coat cannot realize effectively bonding, fiber is discontinuous, material require keeps in Dark Place, lucifuge is constructed, strengthen the problems such as limited efficiency, be not used widely in pipe-line construction at home.Glass fibre reinforced composion is also known as fiber glass epoxy, this technology is usually used in pipeline corrosion protection and body reinforcement, but it is applied to the protection of pipeline external anti-corrosion layer and is still in the starting stage at home, for the scratch resistance of composite and all have much room for improvement with the cohesiveness of 3PE external anti-corrosion layer.In addition, this material cured cycle is longer, in actual application, will affect crossing construction progress.Above-mentioned two kinds of protective materials in the engineer applied of reality, all because the situation that overcoat is peeled off and come off did not appear by force in the cohesive force with anticorrosive coat.
Through section pipeline external anti-corrosion layer protective materials major part adopts prefabricate mode to protect pipeline, and every root pipeline section distance is about 12m, and crossing pipeline total length is depending on zone length to be traversed, generally between hundreds of rice to a few km.Therefore, need weld many pipeline sections when pipeline passes through, welded and carried out shrink belt preservative treatment to welding region afterwards, this position is called " repaired mouth ", after field joint construction completes, just can carry out protective treatment.Crossing pipeline site operation feature determine time of protective treatment is carried out to repaired mouth can not be long, otherwise crossing construction progress can be affected greatly.As adopted conventional epoxy matrix composite class overcoat as the protective materials at repaired mouth place, its cure cycle, generally at 15-48h, will have a strong impact on the integral construction progress of passing through.For this reason, needing to develop one can solidify within a short period of time, and possesses the repaired mouth place protective materials of excellent scratch resistant performance, flexural strength and impact strength simultaneously.
Summary of the invention
The object of this invention is to provide a kind of pipeline external anti-corrosion layer repaired mouth protective materials, described protective materials hardening time is short, scratch resistance, flexural strength, impact strength excellent and constructability.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of pipeline external anti-corrosion layer repaired mouth protective materials, comprise the putty system covering overcoat outside pipeline and overcoat two ends, described overcoat comprises resin system and fibre reinforcement;
Described resin system comprises the component of following mass percent:
E51 epoxy resin 55-60%,
Polyetheramine D2000 10-15%,
Polymercaptan 20-30%,
2,4,6-tri-(dimethylamino methyl) phenol promoter 1-3%,
Poly epoxy propane butyl ether reactive diluent 3-10%;
The fabric that described fibre reinforcement is superhigh molecular weight polyethylene fibers, carbon fiber, glass fibre, basalt fibre and makes, described fabric is without latitude cloth or unidirectional cloth, plain, twill, satin;
Described putty system comprises the component of following mass percent:
E51 epoxy resin 45-50%,
Polyetheramine D2000 10-15%,
Polymercaptan 15-25%,
2,4,6-tri-(dimethylamino methyl) phenol promoter 1-3%
Poly epoxy propane butyl ether reactive diluent 3-10%,
Silane coupling agent KH550 1-2%,
Toughening agent C YH-277 2-5%,
Glass microballoon 10-20%.
The present invention has the following advantages and beneficial effect compared to existing technology:
In the present invention, the resin system of overcoat can make the fiber cloth rapid curing being wrapped in the outer corrosion layer of pipeline, and the protective materials after solidification has the feature of scratch resistance, flexural strength, impact strength excellence and constructability; Putty system in the present invention is coated in overcoat two ends, makes overcoat be smoothly transitted into pipe surface, to prevent the tamper protection layer such as tunnel soil shear, frictional force in crossing process.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
The embodiment of the present invention provides a kind of pipeline external anti-corrosion layer repaired mouth protective materials, and comprise the putty system covering overcoat outside pipeline and overcoat two ends, described overcoat comprises resin system and fibre reinforcement.
Described resin system comprises the component of following mass percent:
E51 epoxy resin 55-60%,
Polyetheramine D2000 10-15%,
Polymercaptan 20-30%,
2,4,6-tri-(dimethylamino methyl) phenol promoter 1-3%,
Poly epoxy propane butyl ether reactive diluent 3-10%.
Wherein, polyetheramine D2000 as a kind of curing agent, can with the fast reaction of E51 epoxy resin; Polymercaptan, as a kind of curing agent, can possess certain intensity by resin with the fast reaction of E51 epoxy resin and after making solidification; 2,4,6-tri-(dimethylamino methyl) phenol promoter is reacted as resin curing agent and promoter and E51 epoxy resin, regulates resin solidification rate and curing rate under room temperature condition by addition; Poly epoxy propane butyl ether reactive diluent regulates resin system viscosity as a kind of diluent.
The fabric that described fibre reinforcement is superhigh molecular weight polyethylene fibers, carbon fiber, glass fibre, basalt fibre and makes, described fabric is without latitude cloth or unidirectional cloth, plain, twill, satin;
Described putty system comprises the component of following mass percent:
E51 epoxy resin 45-50%,
Polyetheramine D2000 10-15%,
Polymercaptan 15-25%,
2,4,6-tri-(dimethylamino methyl) phenol promoter 1-3%
Poly epoxy propane butyl ether reactive diluent 3-10%,
Silane coupling agent KH550 1-2%,
Toughening agent C YH-277 2-5%,
Glass microballoon 10-20%.
Wherein, Silane coupling agent KH550 is as the promoter of improving in conjunction with effect between resin and glass microballoon; Toughening agent C YH-277 improves putty toughness as a kind of additive, reduces fragility; Glass microballoon, as a kind of filler, improves system stiffness and viscosity.
The enforcement of the embodiment of the present invention relates to a kind of adhesive accelerant, described adhesive accelerant is a kind of liquid organic accelerator, be coated between pipeline 3PE anticorrosive coat and overcoat, being applicable to anticorrosive coat that pipeline external anti-corrosion layer top layer is polyethylene (PE) and overcoat is bonding between epoxy fibrous composite, anticorrosive coat surface tension can be improved, active group is embedded at anticorrosive coat, improve the respond of PE surface and overcoat film forming matter function base, thus strengthen the adhesive force between PE surface and overcoat.Described adhesive accelerant comprises organic solvent, emulsifying agent, polar material and deionized water; The mass percent of each component is as follows:
Organic solvent 25%, emulsifying agent 15%, polar material 25%, deionized water 35%;
Wherein, described organic solvent comprises the component of following mass percent: acetone 15%, tetrachloro-ethylene 50%, trichloroethanes 30%, dimethylbenzene 5%.
Described emulsifying agent comprises the component of following mass percent: APES 40%, AEO AEO3 15%, AEO AEO7 45%.
Described polar material comprises the component of following mass percent: isotactic chlorination PP (chlorinty 30%) 30%, isotactic chlorination PE (chlorinty 25%) 70%.
Embodiment 1:
The present embodiment provides a kind of pipeline external anti-corrosion layer repaired mouth protective materials, and comprise the putty system covering overcoat outside pipeline and overcoat two ends, described overcoat comprises resin system and fibre reinforcement.Described resin system comprises the component of following mass percent: E51 epoxy resin 55%, polyetheramine D200010%, polymercaptan 30%, 2,4,6-tri-(dimethylamino methyl) phenol promoter 2%, poly epoxy propane butyl ether reactive diluent 3%.Described fibre reinforcement is 200g/m
2superhigh molecular weight polyethylene fibers unidirectional cloth.Described putty system comprises the component of following mass percent: E51 epoxy resin 45%, polyetheramine D200015%, polymercaptan 20%, 2,4,6-tri-(dimethylamino methyl) phenol promoter 1%, poly epoxy propane butyl ether reactive diluent 3%; Silane coupling agent KH550 1%; Toughening agent C YH-277 5%; Glass microballoon 10%.
Embodiment 2:
The present embodiment provides a kind of pipeline external anti-corrosion layer repaired mouth protective materials, and comprise the putty system covering overcoat outside pipeline and overcoat two ends, described overcoat comprises resin system and fibre reinforcement.Described resin system comprises the component of following mass percent: E51 epoxy resin 57%, polyetheramine D200013%, polymercaptan 25%, 2,4,6-tri-(dimethylamino methyl) phenol promoter 1%, poly epoxy propane butyl ether reactive diluent 4%.Described fibre reinforcement is 200g/m
2glass fibre satin.Described putty system comprises the component of following mass percent: E51 epoxy resin 48%, polyetheramine D2000 12%, polymercaptan 15%, 2,4,6-tri-(dimethylamino methyl) phenol promoter 2%, poly epoxy propane butyl ether reactive diluent 5%; Silane coupling agent KH550 2%; Toughening agent C YH-277 2%; Glass microballoon 14%.
Embodiment 3:
The present embodiment provides a kind of pipeline external anti-corrosion layer repaired mouth protective materials, and comprise the putty system covering overcoat outside pipeline and overcoat two ends, described overcoat comprises resin system and fibre reinforcement.Described resin system comprises the component of following mass percent: E51 epoxy resin 60%, polyetheramine D200012%, polymercaptan 20%, 2,4,6-tri-(dimethylamino methyl) phenol promoter 1%, poly epoxy propane butyl ether reactive diluent 7%.Described fibre reinforcement is 200g/m
2basalt fibre is without latitude cloth.Described putty system comprises the component of following mass percent: E51 epoxy resin 50%, polyetheramine D2000 10%, polymercaptan 15%, 2,4,6-tri-(dimethylamino methyl) phenol promoter 1%, poly epoxy propane butyl ether reactive diluent 3%; Silane coupling agent KH550 1%; Toughening agent C YH-277 2%; Glass microballoon 18%.
Concrete preparation and the construction process of the pipeline external anti-corrosion layer repaired mouth protective materials that the embodiment of the present invention provides are as follows:
1, in being filled a prescription by resin system, E51 epoxy resin and poly epoxy propane butyl ether reactive diluent are according to quality proportioning, component A is made after stirring 5 minutes by agitator (30-40r/min), polyetheramine D2000, polymercaptan and 2 during resin system is filled a prescription, 4,6-tri-(dimethylamino methyl) phenol promoter, according to quality proportioning, makes B component after stirring 10 minutes by agitator (20-30r/min).By be used for end-blocking putty system formulation in E51 epoxy resin, poly epoxy propane butyl ether reactive diluent, Silane coupling agent KH550, toughening agent C YH-277 and glass microballoon according to quality proportioning, component C is made after stirring 5 minutes by agitator (30-40r/min), by polyetheramine D2000, polymercaptan and 2 in putty system formulation, 4,6-tri-(dimethylamino methyl) phenol promoter, according to quality proportioning, makes D component after stirring 10 minutes by agitator (20-30r/min).Stand-by after the packing of A, B, C, D Four composition.It is stand-by that adhesive accelerant configures rear encapsulation in proportion.
When 2, using, A, B component are put into container to scale, stirs after 2min ~ 3min fully mixes rear standing 1min can use with agitator.
3, use watering can at clean pipeline external anti-corrosion layer external coating one deck adhesive accelerant, thickness, not higher than 200um, after having brushed, leaves standstill after 2 minutes, can brushing resin system after the whiting of surface.
4, brushing one deck resin system on pipe surface to be repaired, thickness is not less than 100um, can carry out fibre reinforcement winding after brushing.
5, guarantee in winding process that fiber is vertical with pipeline axial, fiber vertical wrap, in construction, fiber cloth is as needed overlap joint, and the lap of splice should not be less than 200mm.
6, after completing winding, use brush or scraper plate, the end-blocking putty using C, D component to mix is coated in overcoat two ends, makes overcoat be smoothly transitted into pipe surface, to prevent in crossing process the tamper protection layers such as tunnel soil shear, frictional force.
The embodiment of the present invention is in laboratory test results: environment temperature is 23 DEG C ± 2 DEG C, under humidity 50% ± 5% condition, resin solidification 30min Post RDBMS Du Keda 95%, and its combination property sees the following form:
In the present invention, the resin system of overcoat can make the fiber cloth rapid curing being wrapped in the outer corrosion layer of pipeline, and the protective materials after solidification has the feature of scratch resistance, flexural strength, impact strength excellence and constructability; Putty system in the present invention is coated in overcoat two ends, makes overcoat be smoothly transitted into pipe surface, to prevent the tamper protection layer such as tunnel soil shear, frictional force in crossing process.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification made under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (1)
1. a pipeline external anti-corrosion layer repaired mouth protective materials, is characterized in that, comprise the putty system covering overcoat outside pipeline and overcoat two ends, described overcoat comprises resin system and fibre reinforcement;
Described resin system comprises the component of following mass percent:
E51 epoxy resin 55-60%,
Polyetheramine D2000 10-15%,
Polymercaptan 20-30%,
2,4,6-tri-(dimethylamino methyl) phenol promoter 1-3%,
Poly epoxy propane butyl ether reactive diluent 3-10%;
The fabric that described fibre reinforcement is superhigh molecular weight polyethylene fibers, carbon fiber, glass fibre, basalt fibre and makes, described fabric is without latitude cloth or unidirectional cloth, plain, twill, satin;
Described putty system comprises the component of following mass percent:
E51 epoxy resin 45-50%,
Polyetheramine D2000 10-15%,
Polymercaptan 15-25%,
2,4,6-tri-(dimethylamino methyl) phenol promoter 1-3%
Poly epoxy propane butyl ether reactive diluent 3-10%,
Silane coupling agent KH550 1-2%,
Toughening agent C YH-277 2-5%,
Glass microballoon 10-20%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776056.6A CN104494213B (en) | 2014-12-15 | 2014-12-15 | A kind of pipeline external anti-corrosion layer repaired mouth protective materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776056.6A CN104494213B (en) | 2014-12-15 | 2014-12-15 | A kind of pipeline external anti-corrosion layer repaired mouth protective materials |
Publications (2)
| Publication Number | Publication Date |
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| CN104494213A true CN104494213A (en) | 2015-04-08 |
| CN104494213B CN104494213B (en) | 2017-03-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56164820A (en) * | 1980-05-23 | 1981-12-18 | Eagle Ind Co Ltd | Prevention of corrosion of stern tube sleeve |
| US5008309A (en) * | 1989-04-20 | 1991-04-16 | Asmo Co., Ltd. | Balancing putty |
| JP2006219624A (en) * | 2005-02-14 | 2006-08-24 | Konishi Co Ltd | Two-component putty epoxy resin composition |
| CN101205999B (en) * | 2007-01-15 | 2011-04-13 | 北京安科管道工程科技有限公司 | Renovation reinforcement, reinforced and/or crack arrest technique for pipe |
| CN101885898B (en) * | 2009-05-15 | 2012-01-11 | 中国石油天然气股份有限公司 | Composite material for repairing defective pipeline |
-
2014
- 2014-12-15 CN CN201410776056.6A patent/CN104494213B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56164820A (en) * | 1980-05-23 | 1981-12-18 | Eagle Ind Co Ltd | Prevention of corrosion of stern tube sleeve |
| US5008309A (en) * | 1989-04-20 | 1991-04-16 | Asmo Co., Ltd. | Balancing putty |
| JP2006219624A (en) * | 2005-02-14 | 2006-08-24 | Konishi Co Ltd | Two-component putty epoxy resin composition |
| CN101205999B (en) * | 2007-01-15 | 2011-04-13 | 北京安科管道工程科技有限公司 | Renovation reinforcement, reinforced and/or crack arrest technique for pipe |
| CN101885898B (en) * | 2009-05-15 | 2012-01-11 | 中国石油天然气股份有限公司 | Composite material for repairing defective pipeline |
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| Publication number | Publication date |
|---|---|
| CN104494213B (en) | 2017-03-08 |
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Effective date of registration: 20211105 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd. Address before: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee before: PETROCHINA Co.,Ltd. |