CN106010102A - Plastic-coated steel pipe long in service life - Google Patents
Plastic-coated steel pipe long in service life Download PDFInfo
- Publication number
- CN106010102A CN106010102A CN201610440558.0A CN201610440558A CN106010102A CN 106010102 A CN106010102 A CN 106010102A CN 201610440558 A CN201610440558 A CN 201610440558A CN 106010102 A CN106010102 A CN 106010102A
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- parts
- plastic
- service life
- coated steel
- epoxy resin
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Classifications
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a plastic-coated steel pipe long in service life. The plastic-coated steel pipe comprises a steel pipe body and a plastic anticorrosive coating applied to the surface of the steel pipe body. The plastic anticorrosive coating is prepared from, by weight, 32-40 parts of novolac epoxy, 62-68 parts of bisphenol-A epoxy resin, 12-14 parts of composite rare earth salt, 38-42 parts of nano-silica, 1-2 parts of zeolite powder, 1.8-2.2 parts of a flatting agent, 3-5 parts of pigment, 2-3 parts of a phenolic curing agent and 4-6 parts of auxiliaries. The plastic-coated steel pipe long in service life has excellent corrosion resistance and is long in service life, and the heat resisting performance is excellent.
Description
Technical field
The present invention relates to plastic-coated steel technical field, particularly relate to long plastic-coated steel in a kind of service life.
Background technology
Epoxy coating is widely used in the corrosion protection to steel pipe, but owing to epoxy resin is tridimensional network, there is hole, make its permeability resistance poor, extraneous corrosion particle reaches metal base surface easily by the hole of coating, and electrochemical reaction occurs, so that its Corrosion Protection declines, the decay resistance of existing epoxy resin plastic-coated steel is not ideal enough, and service life is short.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes long plastic-coated steel in a kind of service life, has the decay resistance of excellence, and service life is long, and Good Heat-resistance.
The long plastic-coated steel in a kind of service life that the present invention proposes, including steel pipe and the plastic anti-corrosion layer being coated in described steel tube surface, the raw material of plastic anti-corrosion layer includes by weight: novolac epoxy resin 32～40 parts, bisphenol A type epoxy resin 62～68 parts, compound rare-earth salt 12～14 parts, nano silicon 38～42 parts, zeolite powder 1～2 parts, levelling agent 1.8～2.2 parts, pigment 3～5 parts, phenols curing agent 2～3 parts, auxiliary agent 4～6 parts.
Preferably, the epoxide number of bisphenol A type epoxy resin is 0.25～0.35eq/100g.
Preferably, the mean diameter of zeolite powder is 20～50nm.
Preferably, compound rare-earth salt includes by weight: Yttrium trinitrate 8～10 parts, praseodymium nitrate 5～7 parts, holmium nitrate 2～4 parts, thulium nitrate 1～2 parts, Gadolinium trinitrate 2～3 parts.
Preferably, the preparation method of plastic anti-corrosion layer is as follows: after compound rare-earth salt is added to the water dissolving completely, adds nano silicon and zeolite powder stirs, and stands, and is dried, then carries out roasting and obtain the first material；After novolac epoxy resin and bisphenol A type epoxy resin mix homogeneously, add the first material and carry out ultrasonic disperse, be then sequentially added into pigment, auxiliary agent, levelling agent and phenols curing agent mix homogeneously, be then coated with in steel tube surface.
Preferably, in the preparation method of plastic anti-corrosion layer, time of repose is 10～14h.
Preferably, in the preparation method of plastic anti-corrosion layer, sintering temperature is 600～620 DEG C, and roasting time is 50～75min.
Preferably, in the preparation method of plastic anti-corrosion layer, the power of ultrasonic disperse is 600～700w, and the frequency of ultrasonic disperse is 45～60kHz, and the time of ultrasonic disperse is 60～70min.
By soluble in water for compound rare-earth salt, add nano silicon and zeolite powder stirs, stand, nano silicon and zeolite powder is made to be uniformly dispersed in compound rare-earth saline solution, make later stage nano silicon, zeolite powder and rare earth oxide mix homogeneously, three's degree that is uniformly dispersed in the epoxy can be improved.
Owing to the molecular structure of nano silicon and zeolite powder has coordination many surface naturies such as wretched insufficiency, big specific surface area, cooperate with novolac epoxy resin, bisphenol A type epoxy resin, the performances such as the adhesive force of the present invention, stretch-proof and anticorrosion can be improved, the corresponding rare earth oxide of compound rare-earth salt performance in roasting process simultaneously, in later stage whipping process, it is deposited in cathode chamber, makes the corrosion of steel pipe be effectively suppressed.And in the structure of epoxy resin, all with the lone electron pair of non-bonding on the oxygen atom in epoxy radicals, hydroxyl and ether epoxide, easily by electrophilic reagent effect, form complex bonds；Novolac epoxy resin, multiple coordination atom is had on bisphenol A type epoxy resin macromolecular structure, hydroxyl oxygen atom on its macromolecular chain and the oxygen atom of ehter bond and epoxy oxygen atom are at a distance of the nearest, middle only every two carbon atoms, the rare earth oxide radius of steel tube surface is bigger, make novolac epoxy resin, bisphenol A type epoxy resin is prone to and has the rare earth element of multiple unoccupied orbital form pentacyclic sequestration thing, huge legendary turtle number of rings mesh is the most simultaneously, stability is the biggest, novolac epoxy resin, bisphenol A type epoxy resin, nano silicon molecule and rare earth oxide cooperate and improve the heat-and corrosion-resistant performance of the present invention.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
The long plastic-coated steel in a kind of service life that the present invention proposes, including steel pipe and the plastic anti-corrosion layer being coated in described steel tube surface, the raw material of plastic anti-corrosion layer includes by weight: novolac epoxy resin 32 parts, bisphenol A type epoxy resin 68 parts, compound rare-earth salt 12 parts, nano silicon 42 parts, zeolite powder 1 part, levelling agent 2.2 parts, pigment 3 parts, phenols curing agent 3 parts, auxiliary agent 4 parts.
Embodiment 2
The long plastic-coated steel in a kind of service life that the present invention proposes, including steel pipe and the plastic anti-corrosion layer being coated in described steel tube surface, the raw material of plastic anti-corrosion layer includes by weight: novolac epoxy resin 40 parts, bisphenol A type epoxy resin 62 parts, compound rare-earth salt 14 parts, nano silicon 38 parts, zeolite powder 2 parts, levelling agent 1.8 parts, pigment 5 parts, phenols curing agent 2 parts, auxiliary agent 6 parts.
Compound rare-earth salt includes by weight: Yttrium trinitrate 8 parts, praseodymium nitrate 7 parts, holmium nitrate 2 parts, thulium nitrate 2 parts, Gadolinium trinitrate 2 parts.
Embodiment 3
The long plastic-coated steel in a kind of service life that the present invention proposes, including steel pipe and the plastic anti-corrosion layer being coated in described steel tube surface, the raw material of plastic anti-corrosion layer includes by weight: novolac epoxy resin 35 parts, and epoxide number is the bisphenol A type epoxy resin 64 parts of 0.35eq/100g, compound rare-earth salt 13.5 parts, nano silicon 39 parts, mean diameter is the zeolite powder 1.5 parts of 50nm, levelling agent 2 parts, pigment 4.5 parts, phenols curing agent 2.5 parts, auxiliary agent 5 parts.
Compound rare-earth salt includes by weight: Yttrium trinitrate 10 parts, praseodymium nitrate 5 parts, holmium nitrate 4 parts, thulium nitrate 1 part, Gadolinium trinitrate 3 parts.
The preparation method of plastic anti-corrosion layer is as follows: after compound rare-earth salt is added to the water dissolving completely, adds nano silicon and zeolite powder stirs, and stands, and is dried, then carries out roasting and obtain the first material；After novolac epoxy resin and bisphenol A type epoxy resin mix homogeneously, add the first material and carry out ultrasonic disperse, be then sequentially added into pigment, auxiliary agent, levelling agent and phenols curing agent mix homogeneously, be then coated with in steel tube surface.
Embodiment 4
The long plastic-coated steel in a kind of service life that the present invention proposes, including steel pipe and the plastic anti-corrosion layer being coated in described steel tube surface, the raw material of plastic anti-corrosion layer includes by weight: novolac epoxy resin 38 parts, and epoxide number is the bisphenol A type epoxy resin 66 parts of 0.25eq/100g, compound rare-earth salt 12.5 parts, nano silicon 40 parts, mean diameter is the zeolite powder 1.8 parts of 20nm, levelling agent 2 parts, pigment 3.5 parts, phenols curing agent 2.8 parts, auxiliary agent 5 parts.
Compound rare-earth salt includes by weight: Yttrium trinitrate 9 parts, praseodymium nitrate 6 parts, holmium nitrate 3 parts, thulium nitrate 1.5 parts, Gadolinium trinitrate 2.5 parts.
The preparation method of plastic anti-corrosion layer is as follows: after compound rare-earth salt is added to the water dissolving completely, adds nano silicon and zeolite powder stirs, and stands 12h, is dried, then carries out roasting and obtain the first material, and sintering temperature is 610 DEG C, and roasting time is 60min；After novolac epoxy resin and bisphenol A type epoxy resin mix homogeneously, add the first material and carry out ultrasonic disperse, the power of ultrasonic disperse is 650w, the frequency of ultrasonic disperse is 54kHz, the time of ultrasonic disperse is 65min, then it is sequentially added into pigment, auxiliary agent, levelling agent and phenols curing agent mix homogeneously, is then coated with in steel tube surface.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; according to technical scheme and inventive concept equivalent or change in addition thereof, all should contain within protection scope of the present invention.
Claims (8)
1. one kind service life long plastic-coated steel, including steel pipe and the plastic anti-corrosion layer being coated in described steel tube surface, it is characterised in that the raw material of plastic anti-corrosion layer includes by weight: novolac epoxy resin 32～40 parts, bisphenol A type epoxy resin 62～68 parts, compound rare-earth salt 12～14 parts, nano silicon 38～42 parts, zeolite powder 1～2 parts, levelling agent 1.8～2.2 parts, pigment 3～5 parts, phenols curing agent 2～3 parts, auxiliary agent 4～6 parts.
Long plastic-coated steel in service life the most according to claim 1, it is characterised in that the epoxide number of bisphenol A type epoxy resin is 0.25～0.35eq/100g.
Long plastic-coated steel in service life the most according to claim 1, it is characterised in that the mean diameter of zeolite powder is 20～50nm.
Long plastic-coated steel in service life the most according to claim 1, it is characterised in that compound rare-earth salt includes by weight: Yttrium trinitrate 8～10 parts, praseodymium nitrate 5～7 parts, holmium nitrate 2～4 parts, thulium nitrate 1～2 parts, Gadolinium trinitrate 2～3 parts.
Long plastic-coated steel in service life the most according to claim 1, it is characterised in that the preparation method of plastic anti-corrosion layer is as follows: after compound rare-earth salt is added to the water dissolving completely, add nano silicon and zeolite powder stirs, stand, be dried, then carry out roasting and obtain the first material；After novolac epoxy resin and bisphenol A type epoxy resin mix homogeneously, add the first material and carry out ultrasonic disperse, be then sequentially added into pigment, auxiliary agent, levelling agent and phenols curing agent mix homogeneously, be then coated with in steel tube surface.
The most according to claim 5, long plastic-coated steel in service life, it is characterised in that in the preparation method of plastic anti-corrosion layer, time of repose is 10～14h.
The most according to claim 5, long plastic-coated steel in service life, it is characterised in that in the preparation method of plastic anti-corrosion layer, sintering temperature is 600～620 DEG C, and roasting time is 50～75min.
The most according to claim 5, long plastic-coated steel in service life, it is characterised in that in the preparation method of plastic anti-corrosion layer, the power of ultrasonic disperse is 600～700w, and the frequency of ultrasonic disperse is 45～60kHz, and the time of ultrasonic disperse is 60～70min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440558.0A CN106010102A (en) | 2016-06-20 | 2016-06-20 | Plastic-coated steel pipe long in service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440558.0A CN106010102A (en) | 2016-06-20 | 2016-06-20 | Plastic-coated steel pipe long in service life |
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| Publication Number | Publication Date |
|---|---|
| CN106010102A true CN106010102A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610440558.0A Pending CN106010102A (en) | 2016-06-20 | 2016-06-20 | Plastic-coated steel pipe long in service life |
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| Country | Link |
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| CN (1) | CN106010102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108300144A (en) * | 2017-09-04 | 2018-07-20 | 湖北鑫汉通管业有限公司 | A kind of high-strength corrosion-resisting plastic-coated steel |
| CN112497795A (en) * | 2020-11-11 | 2021-03-16 | 四川文诚管业有限公司 | Production process of high-density polyethylene plastic steel composite winding pipe and winding pipe prepared by production process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641428Y (en) * | 2003-09-22 | 2004-09-15 | 天津沽上管道制造有限公司 | Plastic coated steel pipe and joint used for fire extinguishing |
| CN2842129Y (en) * | 2005-11-21 | 2006-11-29 | 陈阵 | Welded plastic-coated steel pipe |
| CN101348682A (en) * | 2008-06-16 | 2009-01-21 | 包头瑞诺精涂新材料有限公司 | Rare earth organic ceramic coating and manufacturing method thereof |
| CN101781510A (en) * | 2010-02-03 | 2010-07-21 | 海洋王照明科技股份有限公司 | Bicomponent epoxy resin coating and preparation method thereof |
-
2016
- 2016-06-20 CN CN201610440558.0A patent/CN106010102A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641428Y (en) * | 2003-09-22 | 2004-09-15 | 天津沽上管道制造有限公司 | Plastic coated steel pipe and joint used for fire extinguishing |
| CN2842129Y (en) * | 2005-11-21 | 2006-11-29 | 陈阵 | Welded plastic-coated steel pipe |
| CN101348682A (en) * | 2008-06-16 | 2009-01-21 | 包头瑞诺精涂新材料有限公司 | Rare earth organic ceramic coating and manufacturing method thereof |
| CN101781510A (en) * | 2010-02-03 | 2010-07-21 | 海洋王照明科技股份有限公司 | Bicomponent epoxy resin coating and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108300144A (en) * | 2017-09-04 | 2018-07-20 | 湖北鑫汉通管业有限公司 | A kind of high-strength corrosion-resisting plastic-coated steel |
| CN112497795A (en) * | 2020-11-11 | 2021-03-16 | 四川文诚管业有限公司 | Production process of high-density polyethylene plastic steel composite winding pipe and winding pipe prepared by production process |
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Application publication date: 20161012 |