CN101149328A - Sensitivity predicating coating material containing phenyl fluorine sensitive matter - Google Patents
Sensitivity predicating coating material containing phenyl fluorine sensitive matter Download PDFInfo
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- CN101149328A CN101149328A CNA2007101773774A CN200710177377A CN101149328A CN 101149328 A CN101149328 A CN 101149328A CN A2007101773774 A CNA2007101773774 A CN A2007101773774A CN 200710177377 A CN200710177377 A CN 200710177377A CN 101149328 A CN101149328 A CN 101149328A
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Abstract
The invention discloses a sensitive predictive coat material with the phenylfluorone sensitive material used in the aluminum alloy surface, which is made up of the 0.2-0.8 weight of phenylfluorone fluorescence sensing material, 0.01-0.05 weight of activating agent and residue agglomerant. The invention uses the fluorescence corrosion sensing intelligent coat as the monitoring instrument; the fluorescence compound is as the corrosion sensing material. By using the character of fluorescence change after compounding with the special metal ion in different oxidation, reducing and pH value, it combines with the coat to monitor. The technology has the high sensitivity to monitor the aluminum alloy corrosion, which can detect the aluminum ion of ppm. So it can provide the ability to appraise the corrosion state and get the important corrosion environment information.
Description
Technical field
The present invention relates to a kind of coating material, more particularly say, be meant a kind of sensitivity prediction coating material that contains phenylfluorone sensitive materials aluminum alloy surface, that be used to monitor the corrosion of aluminium alloy situation that is applied to.
Background technology
At present, aluminium alloy is widely used in the manufacturing of aircraft skin, fuselage ring, rotor, screw propeller, fuel tank, wallboard and undercarriage leg.Under arms in the process,, improve the security and the serviceable life of equipping in the complex environment for reducing aluminum alloy junction member process safe hidden danger under arms, to the corrosion of aluminium alloy process carry out effective corrosion monitoring and corrosion control significant.
The technology that is applied to corrosion monitoring at present roughly includes: (1) ultrasonic thickness test method, and can measure repeatedly the equipment in the running, but be difficult to obtain the variation that enough sensitivity comes the track record corrosion speed; (2) linear polarization method (LPR), linear polarization method is fast to corrosion situation reacting condition, can obtain the moment corrosion rate, but it is unsuitable for using in the medium of electrical conductance difference, when equipment surface has the oxide film or the passivating film of one deck densification, even pile up when corrosion product is arranged, will produce pseudocapacity, and cause very big error, even can't measure; (3) potential method, potential method are used a lot of years in the cathodic protection system monitoring, and are used to the condition that definite local corrosion takes place, but it can not react corrosion rate; (4) AC impedence method, this method has big reliability to high resistivity electrolyte and far-ranging many ambient conditions, yet measuring AC impedance in wider frequency need be chronic, so just is difficult to accomplish to monitor in real time corrosion rate, is not suitable for actual on-the-spot corrosion monitoring; (5) electrochemistry noise method, it comprises electrochemical potential noise (EPN) and electrochemical source of current noise (ECN), it has reflected that the application in commercial production has begun pilot study to these technology because corrosion causes the fluctuation a little of corrosion potential or galvanic couple electric current; (6) thin layer activation method (TLA), this method advantage is and can directly measures the metal total losses from member, and it is highly sensitive, also has field picture technology (FSM), be applied to the real-time field monitoring of submarine transport oil pipeline, this technology can also be carried out corrosion monitoring to not touching the position, for example to monitoring of the hazardous location crackle of nuclear energy power generation plant with radiation hazard etc.Said method corrosion monitoring means on-line monitoring corrosion process limited in one's ability can not have characteristics such as the on-the-spot detection of corrosion damage, corrosion location in-situ investigation, corrosion speed quantitative evaluation concurrently.
Summary of the invention
The purpose of this invention is to provide a kind of sensitivity prediction coating material that contains the phenylfluorone sensitive materials that is applied to aluminum alloy surface, this material is made up of fluorescent sensing material, cementing agent and activating agent.Responsive prediction coating material of the present invention is coated with after on the alloy matrix aluminum, after a period of time, by fluorescence light source it is shone, thus the on-the-spot corrosion condition that obtains on matrix, in time matrix is protected, improved the serviceable life of matrix effectively.
The present invention is a kind of sensitivity prediction coating material that contains the phenylfluorone sensitive materials, is made up of the fluorescent sensing material of 0.2～0.8 weight portion, the activating agent of 0.01～0.05 weight portion and the cementing agent of surplus.The responsive prediction of the present invention coating material can be by the characteristic fluorescence of fluorescent material, can be earlier, simply, the irradiation by fluorescence light source obtains the on-the-spot corrosion condition of finding on the matrix, provides pre-caution for repairing matrix in time.
Description of drawings
Fig. 1 is the cross section view that preparation has responsive prediction coating material on matrix.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The prediction coating material of the present patent application is as the corrosion monitoring means by fluorescence corrosion sensing smart coat, be as the corrosion sensing material with fluorescent chemicals, utilize it under different oxidations, reducing condition, different pH value, and the characteristic that changes takes place with the compound back of special metal ion fluorescence property, combine with coating and be applied to corrosion monitoring.This technology has very high sensitivity to the corrosion of aluminium alloy in-situ monitoring, can detect the aluminum ions existence of ppm scope, for monitor early stage corrosion generation and development, Real-Time Evaluation etch state, obtain important corrosion environment information provide may.
The sensitivity prediction coating material that contains the phenylfluorone sensitive materials that is applied to aluminum alloy surface of the present invention is made up of the fluorescent sensing material of 0.2～0.8 weight portion, the activating agent of 0.01～0.05 weight portion and the cementing agent of surplus.
Described fluorescent sensing material is a phenylfluorone;
Described activating agent is that (hexadecyl trimethyl ammonium bromide claims cetrimonium bromide, bromine palm fibre trimethyl ammonium, Cetrimide again to CTMAB, and whale is melted trimethylammonium bromide; The Xiamen City is auspicious Science and Technology Ltd. earlier, A-15) or Triton X-100 (be commonly called as triton x-100; Green skies biotechnology research institute, ST795);
Described cementing agent is epoxy resin series varnish or propenoic acid resin series varnish, and epoxy resin series varnish has epoxy color sand colored paint EC3301, color sand varnish EC3302, acid-proof varnish EU3202, EP-105 epoxy resin; Propenoic acid resin series varnish has the BS2060 thermoplastic acrylic resin, BS962 thermosetting acrylic resin, BS206 thermoplastic acrylic resin.
The preparation technology of sensitivity prediction coating material that the present invention contains the phenylfluorone sensitive materials is simple, takes by weighing each material by nominal composition earlier, and mechanical raking evenly gets final product under room temperature (22 ℃) condition then.
The method that the sensitivity prediction coating material that makes is coated with built in aluminum alloy surface is:
(A) pre-treatment of matrix
Under experiment condition, that 15cm * 10cm aluminium alloy plate is stand-by after polishing, oil removing, cleaning, drying;
Described technique for grinding adopts 150#, 360#, the polishing of 500# silicon carbide paper, and adopting sand-blasting machine to carry out surface sand-blasting, to handle the back stand-by, matrix surface roughness RZ=60 after the sandblast～80 μ m;
Aluminium alloy plate after will polishing is then cleaned 2～4 times with acetone solution, spends dried up son and cleans 2 times, dries up stand-by with hair-dryer;
(B) coating preparation
Take by weighing above-mentioned material by the phenylfluorone of 0.5 weight portion, the CTMAB of 0.02 weight portion and the EP-105 epoxy resin of surplus; Add ultrasonic dispersing mode at 25 ℃, mechanical raking then and transfer the even coating that makes that is mixed;
(C) brush coating system protective layer on the matrix
Referring to shown in Figure 1, the paint brush that (B) step is made is applied on the aluminium alloy plate surface (single face) in (A) step, obtains the first thick coating of 30 ± 5 μ m (responsive prediction coating); On first coating, brush EP-105 epoxy resin then, obtain thick second coating (top layer) of 20 ± 5 μ m; First coating and second coating constitute protective layer;
(D) fluorescent lamp on-the-spot test
The protective layer that (C) step is made is put under 40 ℃ of constant temperature, the 5%NaCl neutral salt spray environmental baseline and is carried out fluorescence monitoring; When first fluorescent characteristics point occurring, take out the aluminium alloy plate that has protective layer, after the employing scanning electron microscopic observation is peeled off first coating and second coating, erosion profile under the fluorescent characteristics point and pit radius.
By the analysis to erosion profile and pit radius, the oxidized situation of discovery matrix early helps in time aluminium alloy plate being repaired, and really reaches the purpose of field monitoring.
Responsive prediction coating material provided by the invention can be coated with it after on the alloy matrix aluminum, after a period of time, by fluorescence light source it is shone, thus the on-the-spot corrosion condition that obtains on matrix, in time matrix is protected, improved the serviceable life of matrix effectively.
In order to reach different corrosion prediction susceptibility, the composition of responsive prediction coating material of the present invention can be:
(1) forms by the phenylfluorone of 0.3 weight portion, the Triton X-100 of 0.03 weight portion and the epoxy resin series varnish of surplus.
(2) form by the phenylfluorone of 0.5 weight portion, the Triton X-100 of 0.03 weight portion and the epoxy resin series varnish of surplus.
(3) form by the phenylfluorone of 0.8 weight portion, the Triton X-100 of 0.03 weight portion and the epoxy resin series varnish of surplus.
(4) form by the phenylfluorone of 0.3 weight portion, the CTMAB of 0.04 weight portion and the propenoic acid resin series varnish of surplus.
(5) form by the phenylfluorone of 0.5 weight portion, the CTMAB of 0.04 weight portion and the propenoic acid resin series varnish of surplus.
(6) form by the phenylfluorone of 0.8 weight portion, the CTMAB of 0.04 weight portion and the propenoic acid resin series varnish of surplus.
Claims (8)
1. a sensitivity prediction coating material that contains the phenylfluorone sensitive materials is characterized in that: be made up of the fluorescent sensing material of 0.2～0.8 weight portion, the activating agent of 0.01～0.05 weight portion and the cementing agent of surplus.
2. responsive prediction coating material according to claim 1, it is characterized in that: described fluorescent sensing material is a phenylfluorone.
3. responsive prediction coating material according to claim 1, it is characterized in that: described activating agent is CTMAB or Triton X-100.
4. responsive prediction coating material according to claim 1, it is characterized in that: described cementing agent is epoxy resin series varnish or propenoic acid resin series varnish.
5. responsive prediction coating material according to claim 4, it is characterized in that: described epoxy resin series varnish is epoxy color sand colored paint EC3301, color sand varnish EC3302, acid-proof varnish EU3202, EP-105 epoxy resin.
6. responsive prediction coating material according to claim 4, it is characterized in that: described propenoic acid resin series varnish is the BS2060 thermoplastic acrylic resin, BS962 thermosetting acrylic resin, BS206 thermoplastic acrylic resin.
7. responsive prediction coating material according to claim 1, it is characterized in that: the composition of responsive prediction coating material is made up of the phenylfluorone of 0.3 weight portion, the Triton X-100 of 0.03 weight portion and the epoxy resin series varnish of surplus; Or form by the phenylfluorone of 0.5 weight portion, the TritonX-100 of 0.03 weight portion and the epoxy resin series varnish of surplus; Or form by the phenylfluorone of 0.8 weight portion, the Triton X-100 of 0.03 weight portion and the epoxy resin series varnish of surplus; Or form by the phenylfluorone of 0.3 weight portion, the CTMAB of 0.04 weight portion and the propenoic acid resin series varnish of surplus; Or form by the phenylfluorone of 0.5 weight portion, the CTMAB of 0.04 weight portion and the propenoic acid resin series varnish of surplus; Or form by the phenylfluorone of 0.8 weight portion, the CTMAB of 0.04 weight portion and the propenoic acid resin series varnish of surplus.
8. responsive prediction coating material according to claim 1 is characterized in that: be applied to the corrosion condition monitoring to alloy matrix aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101773774A CN101149328A (en) | 2007-11-15 | 2007-11-15 | Sensitivity predicating coating material containing phenyl fluorine sensitive matter |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101773774A CN101149328A (en) | 2007-11-15 | 2007-11-15 | Sensitivity predicating coating material containing phenyl fluorine sensitive matter |
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| CN101149328A true CN101149328A (en) | 2008-03-26 |
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| CNA2007101773774A Pending CN101149328A (en) | 2007-11-15 | 2007-11-15 | Sensitivity predicating coating material containing phenyl fluorine sensitive matter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104704062A (en) * | 2012-10-17 | 2015-06-10 | 和光纯药工业株式会社 | Novel compound, and method for measuring iron concentration by using novel compound as chelate color former |
| CN105259100A (en) * | 2015-10-30 | 2016-01-20 | 上海电力学院 | Method for detecting Al3<+> ions generated during early corrosion of aluminum alloy |
| CN106634422A (en) * | 2016-12-14 | 2017-05-10 | 中国科学院过程工程研究所 | Polymer coating material for detecting metal corrosion and preparation method thereof |
| CN106947374A (en) * | 2017-02-21 | 2017-07-14 | 河北晨阳工贸集团有限公司 | Acroleic acid polyurethane varnish for metal erosion fluorescence detection and preparation method thereof |
| US11313047B2 (en) | 2013-12-18 | 2022-04-26 | Safran Helicopter Engines | Method of treatment against corrosion and against wear |
-
2007
- 2007-11-15 CN CNA2007101773774A patent/CN101149328A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104704062A (en) * | 2012-10-17 | 2015-06-10 | 和光纯药工业株式会社 | Novel compound, and method for measuring iron concentration by using novel compound as chelate color former |
| CN104704062B (en) * | 2012-10-17 | 2017-02-08 | 和光纯药工业株式会社 | Novel compound, and method for measuring iron concentration by using novel compound as chelate color former |
| US11313047B2 (en) | 2013-12-18 | 2022-04-26 | Safran Helicopter Engines | Method of treatment against corrosion and against wear |
| CN105259100A (en) * | 2015-10-30 | 2016-01-20 | 上海电力学院 | Method for detecting Al3<+> ions generated during early corrosion of aluminum alloy |
| CN105259100B (en) * | 2015-10-30 | 2018-04-06 | 上海电力学院 | A kind of aluminium alloy early stage corrosion produces the detection method of Al3+ ions |
| CN106634422A (en) * | 2016-12-14 | 2017-05-10 | 中国科学院过程工程研究所 | Polymer coating material for detecting metal corrosion and preparation method thereof |
| CN106947374A (en) * | 2017-02-21 | 2017-07-14 | 河北晨阳工贸集团有限公司 | Acroleic acid polyurethane varnish for metal erosion fluorescence detection and preparation method thereof |
| CN106947374B (en) * | 2017-02-21 | 2019-05-31 | 河北晨阳工贸集团有限公司 | Acroleic acid polyurethane varnish and preparation method thereof for metal erosion fluorescence detection |
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Open date: 20080326 |