CN104371506A - Cathodic disbonding-resistant liquid epoxy coating and its preparation method - Google Patents
Cathodic disbonding-resistant liquid epoxy coating and its preparation method Download PDFInfo
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- CN104371506A CN104371506A CN201310356654.3A CN201310356654A CN104371506A CN 104371506 A CN104371506 A CN 104371506A CN 201310356654 A CN201310356654 A CN 201310356654A CN 104371506 A CN104371506 A CN 104371506A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a cathodic disbonding-resistant liquid epoxy coating and its preparation method. A liquid A is composed of bisphenol F liquid epoxy resin, bisphenol A liquid epoxy resin, glycidyl ether epoxy resin, a silane coupling agent, a copolymer with an acidic group, polyphenylmethylsiloxane, a polysiloxane-polyether copolymer, an organosilicon antifoaming agent, epoxidized linseed oil, ultrafine silica aerogel, micaceous iron oxide, mica powder, glass flake and titanium dioxide, a liquid B is a phenolic amine curing agent with the amine value of 320-350, and the liquid A is mixed with the liquid B to be used. The coating formed in the invention has the advantages of good adhesion, seawater permeability resistance and cathodic disbonding resistance, and effective prolongation of the service life of an underwater area steel structure.
Description
Technical field
The present invention relates to a kind of liquid epoxy coating of resistance to cathodic disbonding and preparation method; the coating formed has good sticking power, sea water resistance perviousness and resistance to cathodic disbonding performance; there is good consistency with galvanic protection, effectively can extend region steel construction work-ing life under water.
Background technology
Sea, district work steel construction generally carries out Combined Protection with coating and galvanic protection under water at present; not only coating is had to the requirement of water tolerance, sticking power aspect; requirement be it is also proposed to the resistance to cathodic disbonding performance of coating; due to the resistance to cathodic disbonding poor performance of coating, poor water resistance, cause coating that safety and the life-span of district's steel structure under water occur to be had a strong impact on by the phenomenon of penetration of sea water, stripping.
Summary of the invention
The object of this invention is to provide the infiltration of a kind of sea water resistance, resistance to cathodic disbonding, sticking power are excellent, and coating is fine and close, the liquid epoxy coating of resistance to cathodic disbonding of easy construction and preparation method.
The formula of the liquid epoxy coating of resistance to cathodic disbonding of the present invention:
Raw material comprises:
1, bisphenol f type epoxy resin (industrial goods), product grade: EP-4901
Zhang Xiumei Guo Shujing edits domestic and international coating resin kind handbook, Chemical Industry Press the 384th page.
Purposes: be applicable to manufacture coating, sizing agent, appliance material, mould material etc.
Factory: Asahi Denka Kogyo K. K
2, bisphenol-A liquid epoxy resin (industrial goods), product grade: TE-36-80
Zhang Xiumei Guo Shujing edits domestic and international coating resin kind handbook, Chemical Industry Press the 379th page.
Properties and applications: have shock resistance, advantage that snappiness is good, easy to use, is applicable to manufacture solvent based coating.
Factory: the southeast, Shenyang chemical institute
3, tetraglycidel ether epoxy resin (industrial goods), product grade: YP6360
Zhang Xiumei Guo Shujing edits domestic and international coating resin kind handbook, Chemical Industry Press the 423rd page.
Properties and applications: snappiness is good, and viscosity is low, can play viscosity reduction to liquid epoxies and increase soft effect, is mainly used as epoxy active diluent.
Factory: Shanghai Yuan Bang coating Manufacturing Co., Ltd
4, silane coupling agent (industrial goods), product grade: G-403
Qian Fenglin edits domestic and international coatings additive(s) kind handbook, Chemical Industry Press the 7th page.
Character and utilization: G-403 is mixed amino silane.There is the physical strength, adhesive capacity, water tolerance, moisture resistance etc. that improve material.Can be used for all kinds solvent based coating, tackiness agent, ink etc.
Factory: chemical industry company limited of Liaoning Gaizhou City.
5, the multipolymer (industrial goods) of acidic-group is with, product grade: Disperbyk-111
Qian Fenglin edits domestic and international coatings additive(s) kind handbook, Chemical Industry Press the 421st page.
Performance: energy stable inorganic filler, increases gloss, reduce mist shadow, and greatly can reduce the viscosity of abrasive.
Purposes: be mainly used in high solid and solventless coatings.
Factory: German Bi Ke chemical company (BYK Chemie).
6, phenyl polymethyl siloxane (industrial goods), product grade: Baysilone PL
Qian Fenglin edits domestic and international coatings additive(s) kind handbook, Chemical Industry Press the 58th page.
Performance: there is the effect promoting flowing, prevent shrinkage cavity, orange peel.
Purposes: be mainly used in without wax unsaturated polyester, epoxy resin, epoxy-resin system such as phenolic aldehyde, epoxy-amino group.
Factory: Beyer Co., Ltd (Bayer)
7, polysiloxane-polyether copolymer (industrial goods), product grade: WetKL245
Qian Fenglin edits domestic and international coatings additive(s) kind handbook, Chemical Industry Press the 66th page.
Performance: have wetting action, improves spread performance, can prevent because of the inappropriate wetting and shrinkage cavity that causes of base material.
Purposes: be mainly used in solvent based coating, water-borne coatings and printing-ink.
Factory: Di Gao chemical company (Tego)
8, silicone antifoam agent (industrial goods), product grade: Flowlen AC-1140
Qian Fenglin edits domestic and international coatings additive(s) kind handbook, Chemical Industry Press the 163rd page.
Character and utilization: Flowlen AC-1140 is organic copolymer and special organosilicon.Be applicable to froth breaking and the deaeration of all kinds of SOLVENTS type coating, be particularly useful for the froth breaking of epoxy thick film coating.
Factory: Japanese Kyoeisha Chemical Co., Ltd.
9, epoxidized linseed oil (industrial goods), product grade: EDENOL B316
Qian Fenglin edits domestic and international coatings additive(s) kind handbook, Chemical Industry Press the 726th page.
Performance: there is the levelling promoting epoxy coating, the function reducing loss of gloss, yellowing.
Purposes: for all kinds of SOLVENTS type coating and plastic prod.
Factory: Henkel Corp. (Henkel)
10, micro silica aerogel (industrial goods), product grade: GT-100W
Qian Fenglin edits domestic and international coatings additive(s) kind handbook, Chemical Industry Press the 275th page.
Character and utilization: be used in the thickening of the high build paint such as epoxy, bituminous epoxy, thixotroping, anti-settling, sag prevention.
Factory: Tianjin chemical research institute
11, iron mica (industrial goods), Tongling Kun great Sociedad De Desarrollo Minero Limitada "Sodemi Ltda"
Coating process (third edition), Chemical Industry Press, volume two, the 424th page.
Iron mica can play good impervious effect in paint film, and the water-permeable of paint film and ventilation property are reduced, and the minute surface of scale has certain reflective, can extend the weathering process of paint film.
12, mica powder (industrial goods), sea powder spreading body Science and Technology Ltd. of Shenzhen
13, glass flake (industrial goods), Langfang City Jinchuan glasswork company limited
14, titanium dioxide (industrial goods), Hebei Mai Sen titanium dioxide company limited
15, pnenolic aldehyde amine hardener (industrial goods), product grade: Aradur3442
Zhang Xiumei Guo Shujing edits domestic and international coating resin kind handbook, Chemical Industry Press the 482nd page.
The of the present invention liquid epoxy coating of resistance to cathodic disbonding, it is characterized in that: be made up of A liquid and B liquid, wherein A liquid is by the Bisphenol F liquid-state epoxy resin of 0.6 ~ 0.8 part by weight, the bisphenol a liquid epoxy resin of 0.2 ~ 0.4 part, the tetraglycidel ether epoxy resin of 0.1 ~ 0.3 part, the silane coupling agent of 0.01 ~ 0.02 part, the multipolymer of the band acidic-group of 0.005 ~ 0.01 part, the phenyl polymethyl siloxane of 0.005 ~ 0.01 part, the polysiloxane-polyether copolymer of 0.002 ~ 0.01 part, 0.01 ~ 0.02 silicone antifoam agent, the epoxidized linseed oil of 0.005 ~ 0.01 part, the micro silica aerogel of 0.01 ~ 0.02 part, the iron mica of 0.1 ~ 0.3 part, the mica powder of 0.2 ~ 0.4 part, the glass flake of 0.4 ~ 0.6 part, the titanium dioxide composition of 0.01 ~ 0.05 part, B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners, by 1 part of A liquid, 0.2 ~ 0.4 part of B liquid composition during use.
The preparation method of the liquid epoxy coating of resistance to cathodic disbonding of the present invention:
Major equipment:
Stainless steel charging basket, high speed dispersor
Production method:
In stainless charging basket, add Bisphenol F liquid-state epoxy resin, bisphenol a liquid epoxy resin, tetraglycidel ether epoxy resin, silane coupling agent, the multipolymer of band acidic-group, phenyl polymethyl siloxane, polysiloxane-polyether copolymer, silicone antifoam agent, epoxidized linseed oil, open high speed dispersor, rotating speed is controlled at 1000 ~ 1200r/min, stir 5 ~ 10min, rotating speed is increased to 1200 ~ 1400r/min, adds micro silica aerogel, iron mica, mica powder, glass flake, titanium dioxide successively.Keep the rotating speed of 1300r/min to continue dispersion and make A liquid in 20 minutes; B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners.
The using method of the liquid epoxy coating of resistance to cathodic disbonding: at the scene, A liquid and B liquid mix by operating personnel in proportion 1:0.2 ~ 0.4, and slaking, after 10 minutes, is evenly coated in protected object on the surface.
The present invention's beneficial effect compared with prior art
1. the liquid epoxy coating of resistance to cathodic disbonding; be applicable to offshore construction; long-term placement is without knot phenomenon of the hard end; the coating formed has good sticking power, sea water resistance perviousness and resistance to cathodic disbonding performance; there is good consistency with galvanic protection, effectively can extend region steel construction work-ing life under water.
2. manufacturing approach craft is simple, only needs dispersion, need not grind, time saving and energy saving.
Embodiment
Embodiment 1
The manufacture method of the liquid epoxy coating of resistance to cathodic disbonding.The Bisphenol F liquid-state epoxy resin of 0.6 part is added by weight in stainless steel charging basket, the bisphenol a liquid epoxy resin of 0.3 part, the tetraglycidel ether epoxy resin of 0.1 part, the silane coupling agent of 0.02 part, the multipolymer of the band acidic-group of 0.01 part, the phenyl polymethyl siloxane of 0.005 part, the polysiloxane-polyether copolymer of 0.002 part, 0.01 silicone antifoam agent, the epoxidized linseed oil of 0.005 part, open high speed dispersor, rotating speed is controlled at 1000r/min, stir 8min, rotating speed is increased to 1200r/min, add the micro silica aerogel of 0.015 part successively, the iron mica of 0.2 part, the mica powder of 0.2 part, the glass flake of 0.4 part, the titanium dioxide of 0.01 part.Keep the rotating speed of 1300r/min to continue dispersion and make A liquid in 20 minutes; B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners, and during use, the A liquid of 1 weight part and the B liquid of 0.27 weight part are mixed and makes the liquid epoxy coating of resistance to cathodic disbonding.
Embodiment 2
The manufacture method of the liquid epoxy coating of resistance to cathodic disbonding.The Bisphenol F liquid-state epoxy resin of 0.7 part is added by weight in stainless steel charging basket, the bisphenol a liquid epoxy resin of 0.4 part, the tetraglycidel ether epoxy resin of 0.3 part, the silane coupling agent of 0.015 part, the multipolymer of the band acidic-group of 0.005 part, the phenyl polymethyl siloxane of 0.007 part, the polysiloxane-polyether copolymer of 0.01 part, 0.015 silicone antifoam agent, the epoxidized linseed oil of 0.007 part, open high speed dispersor, rotating speed is controlled at 1100r/min, stir 10min, rotating speed is increased to 1400r/min, add the micro silica aerogel of 0.01 part successively, the iron mica of 0.1 part, the mica powder of 0.3 part, the glass flake of 0.6 part, the titanium dioxide of 0.02 part.Keep the rotating speed of 1300r/min to continue dispersion and make A liquid in 20 minutes; B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners, and during use, the A liquid of 1 weight part and the B liquid of 0.33 weight part are mixed and makes the liquid epoxy coating of resistance to cathodic disbonding.
Embodiment 3
The manufacture method of the liquid epoxy coating of resistance to cathodic disbonding.The Bisphenol F liquid-state epoxy resin of 0.8 part is added by weight in stainless steel charging basket, the bisphenol a liquid epoxy resin of 0.2 part, the tetraglycidel ether epoxy resin of 0.2 part, the silane coupling agent of 0.01 part, the multipolymer of the band acidic-group of 0.007 part, the phenyl polymethyl siloxane of 0.01 part, the polysiloxane-polyether copolymer of 0.005 part, 0.02 silicone antifoam agent, the epoxidized linseed oil of 0.01 part, open high speed dispersor, rotating speed is controlled at 1000 ~ 1200r/min, stir 5 ~ 10min, rotating speed is increased to 1200 ~ 1400r/min, add the micro silica aerogel of 0.02 part successively, the iron mica of 0.3 part, the mica powder of 0.4 part, the glass flake of 0.5 part, the titanium dioxide of 0.03 part.Keep the rotating speed of 1300r/min to continue dispersion and make A liquid in 20 minutes; B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners, and during use, the A liquid of 1 weight part and the B liquid of 0.22 weight part are mixed and makes the liquid epoxy coating of resistance to cathodic disbonding.
Embodiment 4
The manufacture method of the liquid epoxy coating of resistance to cathodic disbonding.The Bisphenol F liquid-state epoxy resin of 0.75 part is added by weight in stainless steel charging basket, the bisphenol a liquid epoxy resin of 0.25 part, the tetraglycidel ether epoxy resin of 0.15 part, the silane coupling agent of 0.01 part, the multipolymer of the band acidic-group of 0.01 part, the phenyl polymethyl siloxane of 0.005 part, the polysiloxane-polyether copolymer of 0.007 part, 0.015 silicone antifoam agent, the epoxidized linseed oil of 0.005 part, open high speed dispersor, rotating speed is controlled at 1200r/min, stir 5min, rotating speed is increased to 1300r/min, add the micro silica aerogel of 0.015 part successively, the iron mica of 0.15 part, the mica powder of 0.25 part, the glass flake of 0.45 part, the titanium dioxide of 0.04 part.Keep the rotating speed of 1300r/min to continue dispersion and make A liquid in 20 minutes; B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners, and during use, the A liquid of 1 weight part and the B liquid of 0.35 weight part are mixed and makes the liquid epoxy coating of resistance to cathodic disbonding.
Embodiment 5
The manufacture method of the liquid epoxy coating of resistance to cathodic disbonding.The Bisphenol F liquid-state epoxy resin of 0.7 part is added by weight in stainless steel charging basket, the bisphenol a liquid epoxy resin of 0.35 part, the tetraglycidel ether epoxy resin of 0.25 part, the silane coupling agent of 0.015 part, the multipolymer of the band acidic-group of 0.007 part, the phenyl polymethyl siloxane of 0.01 part, the polysiloxane-polyether copolymer of 0.01 part, 0.02 silicone antifoam agent, the epoxidized linseed oil of 0.01 part, open high speed dispersor, rotating speed is controlled at 1000r/min, stir 10min, rotating speed is increased to 1200r/min, add the micro silica aerogel of 0.01 part successively, the iron mica of 0.25 part, the mica powder of 0.35 part, the glass flake of 0.55 part, the titanium dioxide of 0.05 part.Keep the rotating speed of 1300r/min to continue dispersion and make A liquid in 20 minutes; B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners, and during use, the A liquid of 1 weight part and the B liquid of 0.25 weight part are mixed and makes the liquid epoxy coating of resistance to cathodic disbonding.
Effect:
All table 1 test result can be reached according to above 5 liquid epoxy coating of resistance to cathodic disbonding prepared by embodiment coating performances.
Table 1 the performance test results
| Sequence number | Test item | Test result | Testing method |
| 1. | Sticking power (method of drawing a circle, level) | 1 | GB/T1732 |
| 2. | Snappiness (mm) | 1 | GB/T1724 |
| 3. | Drawing sticking power | ＞16MPa | ISO4624 |
| 4. | Sea water immersion (40 DEG C, 180d) | Coating is intact | ISO2812-2 |
| 5. | Cathodic disbonding (-1.5v, 65 DEG C, 30d) | ＜6mm | GB/T23257 |
Claims (2)
1. the liquid epoxy coating of resistance to cathodic disbonding, it is characterized in that: be made up of A liquid and B liquid, wherein A liquid is by the Bisphenol F liquid-state epoxy resin of 0.6 ~ 0.8 part by weight, the bisphenol a liquid epoxy resin of 0.2 ~ 0.4 part, the tetraglycidel ether epoxy resin of 0.1 ~ 0.3 part, the silane coupling agent of 0.01 ~ 0.02 part, the multipolymer of the band acidic-group of 0.005 ~ 0.01 part, the phenyl polymethyl siloxane of 0.005 ~ 0.01 part, the polysiloxane-polyether copolymer of 0.002 ~ 0.01 part, 0.01 ~ 0.02 silicone antifoam agent, the epoxidized linseed oil of 0.005 ~ 0.01 part, the micro silica aerogel of 0.01 ~ 0.02 part, the iron mica of 0.1 ~ 0.3 part, the mica powder of 0.2 ~ 0.4 part, the glass flake of 0.4 ~ 0.6 part, the titanium dioxide composition of 0.01 ~ 0.05 part, B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners, by 1 part of A liquid, 0.2 ~ 0.4 part of B liquid composition during use.
2. the preparation method of the liquid epoxy coating of resistance to cathodic disbonding according to claim 1, it is characterized in that the Bisphenol F liquid-state epoxy resin adding 0.6 ~ 0.8 part in stainless steel charging basket by weight, the bisphenol a liquid epoxy resin of 0.2 ~ 0.4 part, the tetraglycidel ether epoxy resin of 0.1 ~ 0.3 part, the silane coupling agent of 0.01 ~ 0.02 part, the multipolymer of the band acidic-group of 0.005 ~ 0.01 part, the phenyl polymethyl siloxane of 0.005 ~ 0.01 part, the polysiloxane-polyether copolymer of 0.002 ~ 0.01 part, 0.01 ~ 0.02 silicone antifoam agent, the epoxidized linseed oil of 0.005 ~ 0.01 part, open high speed dispersor, rotating speed is controlled at 1000 ~ 1200r/min, stir 5 ~ 10min, rotating speed is increased to 1200 ~ 1400r/min, add the micro silica aerogel of 0.01 ~ 0.02 part successively, the iron mica of 0.1 ~ 0.3 part, the mica powder of 0.2 ~ 0.4 part, the glass flake of 0.4 ~ 0.6 part, the titanium dioxide of 0.01 ~ 0.05 part.Keep the rotating speed of 1300r/min to continue dispersion and make A liquid in 20 minutes; B liquid is amine value is 320 ~ 350 pnenolic aldehyde amine hardeners, by 1 weight part A liquid, 0.2 ~ 0.4 weight part B liquid composition during use.
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| CN201310356654.3A CN104371506A (en) | 2013-08-15 | 2013-08-15 | Cathodic disbonding-resistant liquid epoxy coating and its preparation method |
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| CN201310356654.3A CN104371506A (en) | 2013-08-15 | 2013-08-15 | Cathodic disbonding-resistant liquid epoxy coating and its preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117421A (en) * | 2019-12-16 | 2020-05-08 | 中国石油天然气股份有限公司 | Aerogel composite coating and application thereof in underground oil pipe |
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2013
- 2013-08-15 CN CN201310356654.3A patent/CN104371506A/en active Pending
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| JPH03290482A (en) * | 1990-04-06 | 1991-12-20 | Showa Electric Wire & Cable Co Ltd | Vibration damping coating |
| CN101531858A (en) * | 2009-04-17 | 2009-09-16 | 洛阳七维防腐工程材料有限公司 | Ocean engineering concrete anti-corrosive paint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111117421A (en) * | 2019-12-16 | 2020-05-08 | 中国石油天然气股份有限公司 | Aerogel composite coating and application thereof in underground oil pipe |
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Application publication date: 20150225 |