CN105331981A - Composite metal surface treatment agent based on conducting polymer - Google Patents
Composite metal surface treatment agent based on conducting polymer Download PDFInfo
- Publication number
- CN105331981A CN105331981A CN201510634077.9A CN201510634077A CN105331981A CN 105331981 A CN105331981 A CN 105331981A CN 201510634077 A CN201510634077 A CN 201510634077A CN 105331981 A CN105331981 A CN 105331981A
- Authority
- CN
- China
- Prior art keywords
- surface treatment
- conductive polymers
- treatment agent
- metal surface
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses a composite metal surface treatment agent based on conducting polymer and belongs to the technical field of metal surface treatment. The surface treatment agent comprises, by mass, 0.05-0.5% of the conducting polymer, 2-10% of organic resin, 1-6% of amino silane coupling agent, 2-9% of an epoxy silane coupling agent, 0-0.5% of an inorganic corrosion inhibitor, an appropriate amount of a PH adjusting agent and the balance deionized water. According to the composite metal surface treatment agent, the conducting polymer serves as a main corrosion inhibitor, the silane coupling agents and the organic resin are organically combined to form a crosslinking system, and the composite metal surface treatment agent acts on the metal surface to form a protection film with excellent corrosion resistance. The composite metal surface treatment agent is free of any toxic substance, solves the problem of environmental pollution caused by existing metal surface treatment and is an environment-friendly metal surface treatment agent.
Description
Technical field
The present invention relates to field of metal surface treatment technology, be specifically related to a kind of environment-friendly type surface treatment agent improving metal corrosion-resisting.
Background technology
Metallic substance generally all will carry out surface treatment, makes the film that the form compact and stable property of its Surface Creation one deck is higher, to improve its corrosion stability, increases surface luster property and contamination resistance.Metallic surface process generally adopts phosphatization and chromating process.Sexavalent chrome is carcinogenic substance, have serious harm, and bonderizing can produce a large amount of waste residue and waste water to human body and environment, can cause serious pollution to environment.Therefore adopting environment-friendly and green treatment process to replace phosphatization or chromating process for treating surface, is the very urgent task that smelter faces.
The technology of alternative passivation and phosphatization of being used at present mainly contains molybdate process, rare earth metal process, silicate process, silane treatment, phytic acid process and fluoropolymer resin process etc., but the treatment effect of these technology does not also reach the solidity to corrosion that phosphatization and chromating have, or expense is too high.Conductive polymers, especially polyaniline and polypyrrole, because it is easy to synthesis, with low cost, asepsis environment-protecting, and have splendid preservative effect to metal, be subject to extensive concern in recent years.But because conductive polymers is difficult to dissolve and processing, is often used in protective system by as inhibiter filler, and is difficult to be applied in metal conditioner.
Summary of the invention
The object of the invention is to solve the problem of environmental pollution caused in existing metal finishing; conductive polymers is adopted to be main inhibiter; silane coupling agent and organic resin are organically combined and forms cross-linking system, act on metallic surface and form the protection epithelium that one deck has excellent anticorrosive.
In order to solve above technical problem, the present invention is achieved by the following technical programs.
The invention provides a kind of metal conditioner based on conductive polymers compound, the Ingredient percent of this surface treatment agent is: conductive polymers, 0.05 ~ 0.5%; Organic resin, 2 ~ 10%; Amino silicane coupling agent, 1 ~ 6%; Epoxy silane coupling agent, 2 ~ 9%; Inorganic inhibitor, 0 ~ 0.5%; PH adjusting agent, in right amount; Surplus is deionized water.The pH value of this surface treatment agent is 3 ~ 7.Described each component concentration is the percentage composition that solids component accounts for surface treatment agent.
Described conductive polymers is one or more the mixture in polyaniline and polypyrrole; Conductive polymers derives from conductive polymers aqueous dispersions, and in dispersion liquid, the size scope of conductive polymers is 20-500nm.
Described organic resin is one or more mixture of aqueous epoxy resins, waterborne polyurethane resin and water-borne acrylic resin.
Described amino silicane coupling agent is one or more mixture of 3-aminopropyl trimethoxysilane, γ-aminopropyltriethoxy diethoxy silane, 3-aminopropyl triethoxysilane, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane, N-(β aminoethyl)-γ-aminopropyltriethoxy-dimethoxysilane, N-(β-aminoethyl)-γ-aminopropyl triethoxysilane, N-(β-aminoethyl)-γ-aminopropyltriethoxy diethoxy silane.
Described epoxy silane coupling agent is 3-(2,3-epoxy third oxygen) propyl trimethoxy silicane, 2-(3,4-epoxy cyclohexane base) one or more mixture of ethyl trimethoxy silane and 3-(2,3 epoxy third oxygen) hydroxypropyl methyl diethoxy silane.
Described inorganic inhibitor is one or more mixture of vanadate, molybdate, titanate.Inorganic inhibitor is not necessary addO-on therapy.
Described pH adjusting agent is one or more mixtures of acetic acid, sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, phytic acid and Weibull.
Further, in described conductive polymers aqueous dispersions, the size of conductive polymers is 50-300nm.
Further, the pH value of described surface treatment agent is 3 ~ 5.
Invention also provides a kind of preparation method of the environment-friendly type metal surface finishing agent based on conductive polymers compound, concrete steps are: epoxy silane coupling agent pH is the aqueous acetic acid hydrolysis dilution of 3 ~ 4 by (1), obtains the epoxy silane solution that mass concentration is 5-30%; (2) by amino silicane coupling agent hydrolysis dilution, the aminosilane solution that mass concentration is 5 ~ 30% is obtained; (3) in the reactor that a certain amount of deionized water is housed, add epoxy silane solution, aminosilane solution while stirring successively, after stirring 15 ~ 30min, pH is regulated to be 3 ~ 5 by pH adjusting agent, add organic resin, inorganic inhibitor, conductive polymers successively again, supplement deionized water, after regulating by pH adjusting agent, stir 20min ~ 30min, namely obtain environment-friendly type metal surface finishing agent of the present invention.
Effect of the present invention and benefit are organically combined conductive polymers, organic resin, solution of silane and inorganic inhibitor, forms fine and close protection epithelium after acting on metallic surface.Utilize the polyfunctional group in amino silicane coupling agent, epoxy silane coupling agent and organic resin, can react to each other in film process thus form three-dimensional netted protection epithelium in metallic surface, effectively can intercept the corrosion factor such as oxygen, water in external environment and there is excellent water tolerance and alkali resistance; Conductive polymer nanometer particle and inorganic inhibitor also will be evenly distributed in the netted epithelium of three nets in film process simultaneously, thus give protection epithelium splendid corrosion resisting property.The present invention containing any toxic substance, is not a kind of metal conditioner of environment-friendly type.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
Degreasing fluid oil removing is used after cold-rolled steel sheet polishing rust cleaning, through tap water, rinsed with deionized water, industrial spirit rinsing, pending after hot blast drying.
Degreasing fluid oil removing is used on galvanized sheet surface, through tap water, and rinsed with deionized water, industrial spirit rinsing, to be pre-treated after hot blast drying.
Treatment temp: room temperature; Treatment time: 5-15s; Processing mode: dip-coating, spraying, roller coat; Solidification value: 200 DEG C; Set time: 15 ~ 60s; Thickness: 0.7 ~ 1.5g/m
2.
Evaluation the present invention obtain the solidity to corrosion of epithelium, adopt neutral salt spray test and electrochemistry ancillary test to realize.Evaluation result is obtained by following content of the test:
(1) neutral salt spray test
Adopt spraying continuously according to GB GB/T10125-1997, take out in the different time periods, and with the light brush specimen surface of banister brush, rinse with clear water after taking-up, observe the area occurring corrosion, calculate the area of corrosion with cross-hatching.
(2) electrochemistry ancillary test
The model adopting Shanghai Chen Hua instrument company to produce is the Tafel polarization curve of sample in 5%NaCl solution that CHI660D electrochemical workstation tests process of the present invention, draws polarization resistance (k Ω cm with software to data after carrying out matching
2) and corrosion current (A/cm
2) etc. parameter.
The formula of table 1, various embodiments of the present invention
Metal sample corrosion experiment assay after the coating of table 2, environment-friendly type metal surface finishing agent of the present invention
Claims (3)
1. based on a metal conditioner for conductive polymers compound, it is characterized in that, the Ingredient percent of this surface treatment agent is: conductive polymers, 0.05 ~ 0.5%; Organic resin, 2 ~ 10%; Amino silicane coupling agent, 1 ~ 6%; Epoxy silane coupling agent, 2 ~ 9%; Inorganic inhibitor, 0 ~ 0.5%; PH adjusting agent, in right amount; Surplus is deionized water; The pH value of described surface treatment agent is 3 ~ 7; Described each component concentration is the percentage composition that solids component accounts for surface treatment agent;
Described conductive polymers is one or more the mixture in polyaniline and polypyrrole; Described conductive polymers derives from conductive polymers aqueous dispersions, and in this dispersion liquid, the size of conductive polymers is 20-500nm;
Described organic resin is one or more mixture of aqueous epoxy resins, waterborne polyurethane resin and water-borne acrylic resin;
Described amino silicane coupling agent is one or more mixture of 3-aminopropyl trimethoxysilane, γ-aminopropyltriethoxy diethoxy silane, 3-aminopropyl triethoxysilane, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane, N-(β aminoethyl)-γ-aminopropyltriethoxy-dimethoxysilane, N-(β-aminoethyl)-γ-aminopropyl triethoxysilane, N-(β-aminoethyl)-γ-aminopropyltriethoxy diethoxy silane;
Described epoxy silane coupling agent is 3-(2,3-epoxy third oxygen) propyl trimethoxy silicane, 2-(3,4-epoxy cyclohexane base) one or more mixture of ethyl trimethoxy silane and 3-(2,3 epoxy third oxygen) hydroxypropyl methyl diethoxy silane;
Described inorganic inhibitor is one or more mixture of vanadate, molybdate, titanate;
Described pH adjusting agent is one or more mixture of acetic acid, sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, phytic acid and Weibull.
2. a kind of metal conditioner based on conductive polymers compound as claimed in claim 1, it is characterized in that, in described conductive polymers aqueous dispersions, the size of conductive polymers is 50-300nm.
3. a kind of metal conditioner based on conductive polymers compound as claimed in claim 1, it is characterized in that, the pH value of described surface treatment agent is 3 ~ 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634077.9A CN105331981A (en) | 2015-09-29 | 2015-09-29 | Composite metal surface treatment agent based on conducting polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634077.9A CN105331981A (en) | 2015-09-29 | 2015-09-29 | Composite metal surface treatment agent based on conducting polymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105331981A true CN105331981A (en) | 2016-02-17 |
Family
ID=55282736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510634077.9A Pending CN105331981A (en) | 2015-09-29 | 2015-09-29 | Composite metal surface treatment agent based on conducting polymer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105331981A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106432720A (en) * | 2016-09-19 | 2017-02-22 | 上海应用技术大学 | Method for preparing polypyrrole doped molybdate |
| CN107033702A (en) * | 2017-06-09 | 2017-08-11 | 安徽工业大学 | A kind of aqueous metal surface inorganic agent being combined based on graphene |
| CN108359324A (en) * | 2018-02-06 | 2018-08-03 | 广东星球铝业有限公司 | A kind of aluminium shape surface method of modifying |
| CN110003792A (en) * | 2019-04-25 | 2019-07-12 | 上海电力学院 | A kind of polyaniline composite anti-corrosive coating and preparation method thereof |
| CN110982426A (en) * | 2019-11-30 | 2020-04-10 | 嘉兴科荣环保科技有限公司 | High-concentration silane treating agent |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108255A (en) * | 2009-12-29 | 2011-06-29 | 中国石油天然气集团公司 | Method for preparing polypyrrole/aniline copolymer anticorrosive paint |
| CN102719126A (en) * | 2012-06-12 | 2012-10-10 | 中国科学院长春应用化学研究所 | Waterborne ultraviolet-heat double-curing polyaniline anticorrosive paint and preparation method thereof |
| CN103865361A (en) * | 2014-04-04 | 2014-06-18 | 山东旭锐新材有限公司 | Polyaniline anti-corrosion coating for underwater or wet surfaces and preparation method thereof |
| CN103882416A (en) * | 2014-03-26 | 2014-06-25 | 北京大学深圳研究院 | Zirconium metal painting pre-treatment agent for scrubbing cold-roll steel sheets |
| CN103898593A (en) * | 2014-03-26 | 2014-07-02 | 北京大学深圳研究院 | Metal zirconium-treatment coating pretreatment agent with high electrophoretic rate |
| CN103923503A (en) * | 2014-04-30 | 2014-07-16 | 重庆海联水性涂料有限公司 | Composite flash rust inhibitor for waterborne epoxy resin coating and preparation method of composite flash rust inhibitor |
-
2015
- 2015-09-29 CN CN201510634077.9A patent/CN105331981A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108255A (en) * | 2009-12-29 | 2011-06-29 | 中国石油天然气集团公司 | Method for preparing polypyrrole/aniline copolymer anticorrosive paint |
| CN102719126A (en) * | 2012-06-12 | 2012-10-10 | 中国科学院长春应用化学研究所 | Waterborne ultraviolet-heat double-curing polyaniline anticorrosive paint and preparation method thereof |
| CN103882416A (en) * | 2014-03-26 | 2014-06-25 | 北京大学深圳研究院 | Zirconium metal painting pre-treatment agent for scrubbing cold-roll steel sheets |
| CN103898593A (en) * | 2014-03-26 | 2014-07-02 | 北京大学深圳研究院 | Metal zirconium-treatment coating pretreatment agent with high electrophoretic rate |
| CN103865361A (en) * | 2014-04-04 | 2014-06-18 | 山东旭锐新材有限公司 | Polyaniline anti-corrosion coating for underwater or wet surfaces and preparation method thereof |
| CN103923503A (en) * | 2014-04-30 | 2014-07-16 | 重庆海联水性涂料有限公司 | Composite flash rust inhibitor for waterborne epoxy resin coating and preparation method of composite flash rust inhibitor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106432720A (en) * | 2016-09-19 | 2017-02-22 | 上海应用技术大学 | Method for preparing polypyrrole doped molybdate |
| CN107033702A (en) * | 2017-06-09 | 2017-08-11 | 安徽工业大学 | A kind of aqueous metal surface inorganic agent being combined based on graphene |
| CN107033702B (en) * | 2017-06-09 | 2019-09-13 | 安徽工业大学 | A kind of aqueous metal surface inorganic agent compound based on graphene |
| CN108359324A (en) * | 2018-02-06 | 2018-08-03 | 广东星球铝业有限公司 | A kind of aluminium shape surface method of modifying |
| CN110003792A (en) * | 2019-04-25 | 2019-07-12 | 上海电力学院 | A kind of polyaniline composite anti-corrosive coating and preparation method thereof |
| CN110982426A (en) * | 2019-11-30 | 2020-04-10 | 嘉兴科荣环保科技有限公司 | High-concentration silane treating agent |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104178757B (en) | Chromium-free composite passivator for hot-dip galvanized steel sheet and preparation and application methods of composite passivator | |
| CN106086846B (en) | Aluminium alloy non-chromium deactivating process for the treatment of and its aluminium alloy non-chromium passivation treatment fluid | |
| CN102070927B (en) | Water-based surface treatment agent for color coating pretreatment of galvanized plates | |
| CN103205738B (en) | A kind of chromium-free passivation liquid | |
| JP5322000B2 (en) | Surface treatment aqueous solution and treatment method for forming a corrosion-resistant film on zinc or zinc alloy plating | |
| CN105331981A (en) | Composite metal surface treatment agent based on conducting polymer | |
| CN102220577B (en) | Organic and inorganic composite aqueous surface treatment liquid for color coating pretreatment of galvanized sheet | |
| CN108300988A (en) | A kind of compound chrome-free tanning agent and preparation method of fast filming | |
| CN102602079B (en) | Anti-stain and anti-fingerprint stainless steel plate and preparation method thereof | |
| JP2007291531A (en) | Method of treating metal using amino silane and multi-silyl-functional silane in admixture | |
| JP2004218070A (en) | Pretreatment method for coating | |
| US9752233B2 (en) | Process and seal coat for improving paint adhesion | |
| CN102121104A (en) | Aqueous chromium-free surface treatment solution for combining color coating pretreatment and base paint coating of galvanized plate | |
| BR112014009860B1 (en) | process for improving the casting power of an electrodeposition coating, and the use of coated metallic substrates and an aqueous pre-treatment composition | |
| CA2850046C (en) | Paint pretreatment agent for coating-type paint, and coating-type painting method | |
| CN105220138A (en) | The agent of a kind of Surface Rust of Weathering Steel stabilization treatment | |
| CN102409331B (en) | Chitosan modified surface treatment liquid for galvanized color-coated board and preparation method thereof | |
| CN106756976A (en) | Silane compound and its application for chemical composition coating post processing | |
| CN108047908A (en) | A kind of steel structure anti-corrosion process | |
| CN105017884A (en) | Aqueous rotating rust steel iron surface treatment liquid and preparation method thereof | |
| JP2006241579A (en) | Chemical conversion treatment agent and surface-treated metal | |
| JP2008184690A (en) | Pretreatment method for coating | |
| WO2022210245A1 (en) | Chemical conversion coating agent, surface-treated metal and surface treatment method | |
| CN101121860A (en) | Chromium-free fingerprint-resistant coating | |
| CN105316672A (en) | Chromium-containing passivation liquid used for surface treatment of galvanized plate and use method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160217 |
|
| WD01 | Invention patent application deemed withdrawn after publication |