CN102775881A - Repairing coating - Google Patents
Repairing coating Download PDFInfo
- Publication number
- CN102775881A CN102775881A CN2012102432265A CN201210243226A CN102775881A CN 102775881 A CN102775881 A CN 102775881A CN 2012102432265 A CN2012102432265 A CN 2012102432265A CN 201210243226 A CN201210243226 A CN 201210243226A CN 102775881 A CN102775881 A CN 102775881A
- Authority
- CN
- China
- Prior art keywords
- repairing
- agent
- repaired mouth
- coating
- curing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a repairing coating, solving the problem that an ordinary repairing method is low in on-site repairing quality. The repairing coating comprises base stock and a curing agent, wherein the base stock mainly comprises the following ingredients: liquid state bisphenol A, F epoxy resin, thixotropic agent, toughening agent, filler, pigment and the like; a liquid state amine type curing agent is used as the curing agent, and the use proportioning of the base stock and the curing agent is 100:23. The repairing coating is used for repairing pipes; the combination strength of a combination plane of the repairing material and a 3PE (Poly Ethylene) erosion resistant layer of a pipeline main body can meet the requirements on repairing standard of a 3PE pipeline; and moreover, the on-site engineering process is simple, the mechanization can be realized, the influence of artificial and environment factors on the engineering is reduced, and the repairing coating can be brushed and coated at low temperature of -5 DEG C.
Description
Technical field
The present invention relates to the protective system field, particularly a kind of repaired mouth coating that can under low temperature environment, use in the piping installation operation process that is applicable to.
Background technology
Corrosion of Pipeline is to cause the one of the main reasons of pipe safety accident; And Corrosion of Pipeline perforation accident majority occurs in the repaired mouth position; So pipeline top coating repaired mouth is related to the preservative coat quality of whole piece pipeline, the repaired mouth place just becomes weakest link in the whole pipe preservative system.
At present; Jointing method commonly used has: heat shrink sleeve (band), coldly twine polyethylene tape, electric heating melts the compound repaired mouth etc. that contracts, all in various degree the influences that receives some environment, factor such as artificial of these jointing methods exist in severe environment; Construction process is subject to environmental factors and disturbs; Require the constructing operation hand that high-caliber construction technical ability and endurance are arranged, and heat melts bonding and make and be prone to form air pocket, air filled cavity in the construction process, be prone to produce stress corrosion crack; The contraction of body surface preheating and Heating temperature and material is asynchronous, thereby causes adhesive force of coatings decline problem.
Summary of the invention
The purpose of this invention is to provide a kind of repaired mouth coating; This repaired mouth coating is coated in the joint coating on pipeline place; Can form double-deck liquid corrosion protection coating; Solve the low problem of the on-the-spot repaired mouth quality of existing jointing method commonly used, thus the work-ing life of improving pipeline outer anticorrosive coating repaired mouth quality and whole piece pipeline.
For realizing the foregoing invention purpose, the technical scheme that the present invention adopts is: a kind of repaired mouth coating, comprise base-material and solidifying agent, and wherein base-material comprises following component according to weight percent:
Liquid bisphenol A epoxy resin 26-30
Liquid bisphenol F epoxy resin 7-10
Epoxide diluent 4-5
Epoxy toughening agent 11-20
Mica powder 10-15
Kaolin 18-22
Silica powder 12-16
Thixotropic agent 2-3
White titanium pigment 3-4
Carbon black 0.7-1
Solidifying agent adopts liquid amine curing agent;
The use proportioning of base-material and solidifying agent is: base-material: solidifying agent=100:23.
The raw-material effect of this each component of repaired mouth coating:
1, adopt liquid bisphenol A epoxy resin and liquid bisphenol F epoxy resin blending ingredients, enhance product performance, reduce viscosity and mix fully, it is active to strengthen reflection, can strengthen the curing speed under the subzero 5 degree conditions of low temperature;
2, epoxide diluent: reduce curing system viscosity, increase flowability, increase the service life;
3, epoxy toughening agent: when the cured article toughness reguirements is higher, add toughner in right amount, system toughness is further improved;
4, mica powder: can improve the ageing resistance of coating greatly, the weathering resistance of enhancement coating prevents be full of cracks, and variable color postpones efflorescence, resistance to weathering, characteristics such as drag is strong;
5, kaolin: have whiteness height, matter soft, be prone to dispersion suspension in water, good plasticity-and high cohesiveness, excellent electric insulation performance; Have good antiacid dissolubility, very low cation exchange capacity, physico-chemical property such as resistivity against fire preferably;
6, silica powder: the weathering resistance filler that is used for improving coating;
7, thixotropic agent: after the formation of filming, can make under the low shear rate has than high viscosity, can prevent pigment sedimentation and wet film sagging;
8, white titanium pigment: can increase the opacifying power of filming, strong coloring force can play a protective role to the stability of medium, and can strengthen the physical strength and the sticking power of paint film, prevents crackle, prevents that ultraviolet ray and moisture from seeing through, the prolongation paint film life-span;
9, carbon black: pigment;
10, liquid amine curing agent: have curing is arranged, function such as toughness reinforcing, fire-retardant, promotion, main and epoxy resin and epoxide diluent generation chemical crosslink reaction, low temperature curing agent is synthesized in employing can reach solidified requirement under the subzero 5 degree conditions of low temperature.
Beneficial effect of the present invention: adopt repaired mouth coating of the present invention to carry out repaired mouth, the bonding strength of opening-supplementing material and pipeline body 3PE preservative coat bonding surface can reach 3PE joint coating on pipeline standard-required; And site construction technology is simple, can realize mechanize, can reduce artificial and the influence of environmental factors to constructing; Can construct in the brushing under the subzero 5 ℃ of conditions of low temperature.
Embodiment
Further be explanation through specifically being embodiment below to the present invention:
Embodiment 1
A kind of repaired mouth coating, wherein base-material comprises following component according to weight percent:
Liquid bisphenol A epoxy resin (model 127/128) 280
Liquid bisphenol F epoxy resin (model EF170) 75
YLENE 45
Polyimide (epoxy toughening agent) 110
Mica powder 100
Kaolin 200
Silica powder 140
Aerosil (thixotropic agent) 20
White titanium pigment 30
Carbon black 0.8
Triethylene tetramine (solidifying agent)
The use proportioning of base-material and solidifying agent is: base-material: solidifying agent=100:23.
The preparation of base-material:
After each component of base-material weighed according to prescription, join in the shredder and grind, get final product when being ground to the coating fineness less than 80um.
The repaired mouth paint coatings main performance index of this embodiment 1 sees the following form 1:
Through test, behind the repaired mouth coating curing, cohering of repaired mouth coating and PE detected in addition, the repaired mouth coating can not be peeled by sled; Adopt the hubbing test shows, its cohesive force reaches more than the 5MPa, and the cohesive force of repaired mouth coating and PE is higher than among the ISO 21809-3 regulation about liquid repaired mouth coating cohesive force >=3.5MPa.
Embodiment 2
The base-material of repaired mouth coating comprises following component according to weight percent:
Liquid bisphenol A epoxy resin (model 127/128) 290
Liquid bisphenol F epoxy resin (model EF170) 80
Toluene 50
Nitrile rubber (epoxy toughening agent) 100
Mica powder 110
Kaolin 180
Silica powder 125
Organobentonite (thixotropic agent) 30
White titanium pigment 35
Carbon black 0.7
Diethylenetriamine (solidifying agent)
The use proportioning of base-material and solidifying agent is: base-material: solidifying agent=100:23.
The preparation method of base-material is with embodiment 1.
The repaired mouth coating property detected result of embodiment 2 is seen table 2:
Claims (5)
1. a repaired mouth coating comprises base-material and solidifying agent, and wherein base-material comprises following component according to weight percent:
Liquid bisphenol A epoxy resin 26-30,
Liquid bisphenol F epoxy resin 7-10,
Epoxide diluent 4-5,
Epoxy toughening agent 11-20,
Mica powder 10-15,
Kaolin 18-22,
Silica powder 12-16,
Thixotropic agent 2-3,
White titanium pigment 3-4,
Carbon black 0.7-1,
Solidifying agent adopts liquid amine curing agent,
The use proportioning of base-material and solidifying agent is: base-material: solidifying agent=100:23.
2. repaired mouth coating according to claim 1 is characterized in that: described epoxide diluent is the mixture of YLENE or toluene or the arbitrary proportion of the two.
3. repaired mouth coating according to claim 1 is characterized in that: described epoxy toughening agent is a kind of in polyimide or the nitrile rubber.
4. repaired mouth coating according to claim 1 is characterized in that: described thixotropic agent is a kind of in aerosil or the organobentonite.
5. repaired mouth coating according to claim 1 is characterized in that: described liquid amine curing agent is a kind of in diethylenetriamine or the triethylene tetramine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102432265A CN102775881A (en) | 2012-07-16 | 2012-07-16 | Repairing coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102432265A CN102775881A (en) | 2012-07-16 | 2012-07-16 | Repairing coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102775881A true CN102775881A (en) | 2012-11-14 |
Family
ID=47120996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102432265A Pending CN102775881A (en) | 2012-07-16 | 2012-07-16 | Repairing coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102775881A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103525268A (en) * | 2013-09-24 | 2014-01-22 | 安徽锐视光电技术有限公司 | Bright powder coating |
| CN107556905A (en) * | 2017-09-29 | 2018-01-09 | 江苏亿可得电子科技有限公司 | A kind of energy saving and environment friendly television set coatings formula |
| CN114045088A (en) * | 2021-12-28 | 2022-02-15 | 国家石油天然气管网集团有限公司 | Preparation method of high-toughness epoxy anticorrosive slurry |
| CN115011216A (en) * | 2022-06-06 | 2022-09-06 | 国家石油天然气管网集团有限公司 | Rapid wear-resistant amphiphilic epoxy anticorrosive slurry for anticorrosive repaired mouth and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464225A (en) * | 1990-03-07 | 1995-11-07 | Kazuyoshi Uematsu | Oil leakage preventive method |
| CN102559007A (en) * | 2011-12-19 | 2012-07-11 | 烟台德邦科技有限公司 | Composition for manufacturing corrosion-resistant and abrasion-resistant coating as well as preparation method and application thereof |
-
2012
- 2012-07-16 CN CN2012102432265A patent/CN102775881A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5464225A (en) * | 1990-03-07 | 1995-11-07 | Kazuyoshi Uematsu | Oil leakage preventive method |
| CN102559007A (en) * | 2011-12-19 | 2012-07-11 | 烟台德邦科技有限公司 | Composition for manufacturing corrosion-resistant and abrasion-resistant coating as well as preparation method and application thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103525268A (en) * | 2013-09-24 | 2014-01-22 | 安徽锐视光电技术有限公司 | Bright powder coating |
| CN107556905A (en) * | 2017-09-29 | 2018-01-09 | 江苏亿可得电子科技有限公司 | A kind of energy saving and environment friendly television set coatings formula |
| CN114045088A (en) * | 2021-12-28 | 2022-02-15 | 国家石油天然气管网集团有限公司 | Preparation method of high-toughness epoxy anticorrosive slurry |
| CN115011216A (en) * | 2022-06-06 | 2022-09-06 | 国家石油天然气管网集团有限公司 | Rapid wear-resistant amphiphilic epoxy anticorrosive slurry for anticorrosive repaired mouth and preparation method and application thereof |
| CN115011216B (en) * | 2022-06-06 | 2023-09-29 | 国家石油天然气管网集团有限公司 | Rapid wear-resistant amphiphilic epoxy anti-corrosion slurry for anti-corrosion joint coating and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10675843B2 (en) | Aqueous primer composition for adhesive bonding and bonding method using the same | |
| CN105295645B (en) | A kind of heat resist modification epoxy-based lacquers and its preparation method and application | |
| CN102993913B (en) | A kind of solvent free corrosion prevention coating for Directional Drilling poling road and preparation method thereof | |
| CN104231857A (en) | Composite epoxy anticorrosive paint and preparation method thereof | |
| KR101389496B1 (en) | Powder coating composition having high abrasion resistance and excellent flexibility | |
| CN109971308A (en) | No-solvent type heat-insulating anti-corrosive coating and corrosion-inhibiting coating | |
| CN103214914B (en) | A kind of nanometer heavy-duty coating | |
| KR102159871B1 (en) | Coating composition for forming a coating film with reduced frictional resistance, coating film, and substrate with coating film | |
| CN102775881A (en) | Repairing coating | |
| CN102464934A (en) | Epoxy powder coating suitable for low-temperature coating | |
| CN103642362B (en) | A kind of fire resistant anticorrosive organic coating | |
| CN103333607A (en) | Corrosion-resistant high-temperature insulation paint | |
| CN103788726B (en) | Antistatic paint for steel structure surface and preparation method thereof | |
| KR102199316B1 (en) | Eco-friendly steel structure concrete protective epoxy composition containing modified graphene and steel structure repair method using the same | |
| BRPI0808244A2 (en) | "AMINE POLYTHYETER RESIN COMPOUND, RESIN COMPOSITION AND METHOD FOR USING A RESIN COMPOSITION" | |
| JP2017008296A (en) | Crack propagation inhibiting resin composition and crack propagation inhibition method | |
| KR101687731B1 (en) | Thermosetting powder coating composition for internal pipe coating | |
| CN105199573A (en) | Anti-corrosion paint, application thereof and pipeline coating | |
| CN109251651A (en) | A kind of corrosion-resistant fireproof coating | |
| CN106883733A (en) | A kind of freeze-thawing resistant epoxy protective coating and preparation method thereof | |
| CN105694667B (en) | Thick coated type epoxy insulation antiseptic paint | |
| CN102382555A (en) | Solvent-free low-temperature solidified phenolic epoxy anticorrosive paint and preparation method thereof | |
| CN108329801B (en) | Environment-friendly integrated waterproof coating and preparation method thereof | |
| KR20110112965A (en) | Thermosetting powder coating composition for pipe coating with excellent high temperature corrosion resistant | |
| KR101732539B1 (en) | Powder paint composition having a high glass transition temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |