CN108841291A - A kind of antiwear powder paint for jacking construction - Google Patents
A kind of antiwear powder paint for jacking construction Download PDFInfo
- Publication number
- CN108841291A CN108841291A CN201810595333.1A CN201810595333A CN108841291A CN 108841291 A CN108841291 A CN 108841291A CN 201810595333 A CN201810595333 A CN 201810595333A CN 108841291 A CN108841291 A CN 108841291A
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- China
- Prior art keywords
- coating
- jacking construction
- powder paint
- powder
- antiwear
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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
-
- 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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
-
- 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
- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses the technical solution of the invention is as follows：A kind of antiwear powder paint for jacking construction, it is as follows according to quality meter formula composition：
Description
Technical field
The present invention relates to the technical field of powdery paints more particularly to a kind of antiwear powder paints for jacking construction.
Background technique
Statement in this part merely provides background information related with present disclosure, thereby increases and it is possible to not constitute
The prior art.
Buried steel pipe is to melt spraying or absorption food-grade epoxy powder in inside and outside wall by special process using steel pipe as matrix
Last coating or PE raw material are through advanced composite material (ACM) made of hot setting.With excellent corrosion resistance and smaller friction resistance
Power.
The outer corrosion-resistant service life of buried steel pipe directly decides the service life of steel pipe, during jacking construction, anti-corrosion
Pipeline section needs to pass through various soil layers, and pipeline outer wall and the soil body are in Frotteurism, therefore, jacking construction in jack-in process
Pipe laying is relatively excavated to the wearability, cohesive force and mechanical strength of the external coating of steel pipe and requires height, to protect steel pipe setting
It is not damaged by corrosion in the meter service life period.
In the prior art clinkery epoxy powder coating (FBE) have excellent adhesive force, corrosion resistance, resistance to cathodic disbonding,
The stress of resistance to soil, use temperature range is wide (- 30~100 DEG C), be domestic Outer Tube outer anticorrosive coating technology Main System it
One, but in jacking construction, since the friction of soil easily makes coating damage influence the anti-corrosion life of pipeline, thus generally use increasing
The FBE coating (booster stage FBE, 500-800 μm of coating layer thickness) to add thickness, or one is coated on original FBE coating
The FBE coating of layer toughening modifying forms 2FBE structure (600-1000 μm of two layers of coatings overall thickness).But when application booster stage FBE,
Although the ability and wear-resisting property that coating absorbs impact force can be enhanced in the general thickness for increasing anti-corrosion layer system, however, this
The flexibility that coating can be reduced, with the increase of coating layer thickness, when being impacted, coating is often easier to crack.And it answers
When with 2FBE, first coating bottom FBE powder is needed, then coating surface layer toughening FBE powder, twice coating increase technique again
Complexity, the cured degree of bottom FBE affects the performance of Bulk coat, and bottom FBE solidifies bad or over cure and can
The adhesive force that two layers of FBE applies interlayer is influenced, and in actual production coating, the curing degree of bottom FBE is difficult to detect, only
It can be grasped by rule of thumb according to powder property, affect the stability of final coating quality.
Therefore the prior art has much room for improvement and develops.
Summary of the invention
A kind of abrasion-resistant powder the technical problem to be solved in the present invention is to provide outer wall for being coated on steel pipe as external anti-corrosion layer
Last coating the destruction of soil friction while keeping good anti-corrosion performance when can bear jacking construction.
The technical solution of the invention is as follows：A kind of antiwear powder paint for jacking construction, according to quality meter formula
It forms as follows：
The curing agent hydroxyl equivalent is 180-230.
The inorganic filler is silicon powder and globular glass powder, and mass ratio is 25-30 and 10-15 respectively.
The coupling agent is mainly silane coupling agent, mass ratio 0.3-0.5%.
A method of manufacture is used for the antiwear powder paint of jacking construction, is mixed after each component is prepared with mixing machine
And crush with pulverizer after melting mixing in double screw extruder and obtain the epoxy powder painting that average grain diameter is 50-70 μm
Material.
Coating process is roll coating process or fluidized bed process or electrostatic spray.
Beneficial effects of the present invention：Powdery paints disclosed by the invention has both high abrasion characteristic, high adhesion force and good
Flexibility, 1500 μm of coating or more is pin-free, and the ARO of different-thickness can be designed according to different geological conditions
The coating thickness of (Abrasion Resistant Outlayer) protective layer, and it is compatible with cathodic protection, do not generate cathode screen
It covers, is ideal jacking construction external protective coating.
Specific embodiment
For two kinds of coating structures in background technique, the present invention discloses a kind of wear-and corrosion-resistant coating, and the ARO coating is primary
Coating coating layer thickness can control between 500-1600 μm, and surface is pin-free, have the adhesive force to compare favourably with booster stage FBE
And resistance to cathodic disbonding performance, while there is the comparable wearability of 2FBE coating and impact flexibility.
This have a good flexible ARO coating, low temperature flexibility close to single layer clinkery epoxy powder (FBE) coating,
When coating is very thick, the shock resistance of erosion resistant coating will not be reduced, need not also reduce the amount of filler, so that coating has
There is splendid wearability, it is this to have good flexible ARO coating that support under the conditions of unfavorable geology operating condition jacking construction
The issuable scratch of anti-soil friction and become a kind of ideal solution that end user protects buried pipeline.
Specifically：
A kind of antiwear powder paint for jacking construction, it is as follows according to quality meter formula composition：
The curing agent hydroxyl equivalent is 180-230.
The inorganic filler is silicon powder and globular glass powder, and mass ratio is 25-30 and 10-15 respectively.
The coupling agent is mainly silane coupling agent, mass ratio 0.3-0.5%.
A method of manufacture is used for the antiwear powder paint of jacking construction, is mixed after each component is prepared with mixing machine
And crush with pulverizer after melting mixing in double screw extruder and obtain the epoxy powder painting that average grain diameter is 50-70 μm
Material.
Embodiment 1：
A kind of antiwear powder paint for jacking construction, it is as follows according to quality meter formula composition：
Embodiment 2：
A kind of antiwear powder paint for jacking construction, it is as follows according to quality meter formula composition：
Embodiment 3：
A kind of antiwear powder paint for jacking construction, it is as follows according to quality meter formula composition：
Coating process is roll coating process or fluidized bed process or electrostatic spray.
The present invention is respectively that 800-950 and epoxy are worked as using its epoxide equivalent of the epoxy resin of two step method structure of bisphenol A
1500-2000 is measured, low epoxide equivalent epoxy guarantees that the adhesive force of coating and resistance to cathodic disbonding performance, high epoxide equivalent epoxy play
Toughening effect.
Curing agent of the organic phenols curing agent of hydroxyl equivalent 180-230 high activity as the epoxy systems is selected, selection has
Machine phenol curing agent has molecular structure similar with structure of bisphenol A, thus has good compatibility with epoxy resin, after solidification
Holiday is few.
The activity of the adjustable curing reaction of addition of curing accelerator can make curing reaction in lower temperature and shorter
Ensure to react abundant progress in time, guarantees the coating performance after solidifying.
Inorganic filler used in the present invention is silicon powder and globular glass powder, and usage amount is inorganic to fill out not less than 30%
Expect internal stress when can effectively reduce curing of coatings and assigns the good identation hardness of coating as hardening aggregate.
It is micronized wax using the polytetrafluoroethylene (PTFE) (PTFE) of 0.5-1.0% in the present invention, the table of coating can be effectively reduced
Face coefficient of friction is conducive to the frictional force in jacking construction with soil, reduction pair so that paint coatings surface of the invention is smooth
The scratch of coating.
The present invention is made organic in inorganic filler and formula using the coupling agent of 0.3-0.5%, predominantly silane coupling agent
Component is compatible well, reduces the internal stress of coating to further increase coating toughness.
Other formula constituents such as levelling agent, degasser, pigment can be selected by general formulation, no particularity.
The performance detection of ARO powdery paints can be according to SY/T0315-2013《Steel pipe clinkery epoxy powder external coating skill
Art specification》Standard is measured, for example resistance to cathodic disbonding performance of Key Performance Indicator, wearability, adhesive force, impact property, curved
Qu Xingneng reaches standard requirements.
The Key Performance Indicator of ARO push pipe coating：
Resistance to cathodic disbonding performance：65 DEG C, 48h disbondment radius is 2.6mm, qualified
Adhesive force：75 DEG C, 28d, 2 grades pass through
Pull open method adhesive force:≥20MPa
Shock resistance：- 30 DEG C, 1.5J passes through
It is counter-bending：- 30 DEG C, 3.Pass through
Shao Shi spends≤85 firmly
The Xing of Nai Mo≤3.6L/ μm
ARO coating does not only reach the excellent adhesive force of single layer FBE coating, resistance to cathodic disbonding performance, and more than 800
μm high film thickness under, coating still has very excellent toughness, and shock resistance and bending resistance can be equal to single layer FBE coating
Beauty is mutually tied using high equivalent weight epoxy resin roughening technology with by the inorganic filler-toughened technology of activeness and quietness of coupling agent treatment
It closes, improves the toughness and wearability of coating, if knockout method test wearability can reach 3.6L/ μm or more, and common FBE is applied
Layer wearability is difficult more than 3.0L/ μm；The shore D hardness of coating is more than 86, and common FBE coating shore D hardness is difficult to surpass
80 are crossed, pencil hardness can reach 6H, and common FBE coating is then difficult more than 5H.Further, since having used polytetrafluoro in formula
Ethylene waxes reduce the skin-friction coefficient of coating, and jacking resistance when jacking construction can be greatly reduced.
ARO powdery paints is applied to certain project pipe-jacking project, through detecting after the outer steel pipe ejection for applying ARO corrosion-inhibiting coating, ARO
External anti-corrosion layer does not have any damage, has withstood jacking construction soil friction and has not generated scratch.
In the description of this specification, the description of term " one embodiment " etc. means that the embodiment or example is combined to describe
Particular features, structures, materials, or characteristics be included at least one embodiment or example of the invention.In the present specification,
Schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific features of description, knot
Structure, material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of antiwear powder paint for jacking construction, it is characterised in that：It is as follows according to quality meter formula composition：
2. the antiwear powder paint according to claim 1 for jacking construction, it is characterised in that：The curing agent hydroxyl is worked as
Amount is 180-230.
3. the antiwear powder paint according to claim 1 for jacking construction, it is characterised in that：The inorganic filler is
Silicon powder and globular glass powder, mass ratio are 25-30 and 10-15 respectively.
4. a kind of method that manufacture is used for the antiwear powder paint of jacking construction as described in claim 1, which is characterized in that will be each
Component is mixed with mixing machine after preparing and crush with pulverizer after melting mixing in double screw extruder and is averaged
The epoxide powder coating that partial size is 50-70 μm.
5. manufacturing method according to claim 4, it is characterised in that：Coating process is roll coating process or fluidized bed process or electrostatic
Spray coating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595333.1A CN108841291A (en) | 2018-06-11 | 2018-06-11 | A kind of antiwear powder paint for jacking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595333.1A CN108841291A (en) | 2018-06-11 | 2018-06-11 | A kind of antiwear powder paint for jacking construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108841291A true CN108841291A (en) | 2018-11-20 |
Family
ID=64211530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810595333.1A Pending CN108841291A (en) | 2018-06-11 | 2018-06-11 | A kind of antiwear powder paint for jacking construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108841291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067293A (en) * | 2019-04-25 | 2019-07-30 | 广东景源建设工程有限公司 | Sewage conduct engineering construction process |
| CN115746640A (en) * | 2022-11-11 | 2023-03-07 | 擎天材料科技有限公司 | Anti-indentation acrylic transparent powder coating |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000204289A (en) * | 1999-01-11 | 2000-07-25 | Dainippon Toryo Co Ltd | Powder paint composition |
| CN101952374A (en) * | 2008-01-25 | 2011-01-19 | 阿克佐诺贝尔国际涂料股份有限公司 | Powder coating compositions having a substantially non-zinc containing primer |
| CN104761997A (en) * | 2015-03-25 | 2015-07-08 | 牛无畏 | Epoxy resin powder paint |
| CN105820717A (en) * | 2016-05-31 | 2016-08-03 | 宝华（黄山）新材料技术有限公司 | Epoxy powder coating with toughness and high temperature resistance |
| KR20180032546A (en) * | 2018-03-22 | 2018-03-30 | 주식회사 케이씨씨 | Powder coating composition having excellent chipping resistance and alloys comprising a cured coating layer formed from the same |
-
2018
- 2018-06-11 CN CN201810595333.1A patent/CN108841291A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000204289A (en) * | 1999-01-11 | 2000-07-25 | Dainippon Toryo Co Ltd | Powder paint composition |
| CN101952374A (en) * | 2008-01-25 | 2011-01-19 | 阿克佐诺贝尔国际涂料股份有限公司 | Powder coating compositions having a substantially non-zinc containing primer |
| CN104761997A (en) * | 2015-03-25 | 2015-07-08 | 牛无畏 | Epoxy resin powder paint |
| CN105820717A (en) * | 2016-05-31 | 2016-08-03 | 宝华（黄山）新材料技术有限公司 | Epoxy powder coating with toughness and high temperature resistance |
| KR20180032546A (en) * | 2018-03-22 | 2018-03-30 | 주식회사 케이씨씨 | Powder coating composition having excellent chipping resistance and alloys comprising a cured coating layer formed from the same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067293A (en) * | 2019-04-25 | 2019-07-30 | 广东景源建设工程有限公司 | Sewage conduct engineering construction process |
| CN115746640A (en) * | 2022-11-11 | 2023-03-07 | 擎天材料科技有限公司 | Anti-indentation acrylic transparent powder coating |
| CN115746640B (en) * | 2022-11-11 | 2024-03-26 | 擎天材料科技有限公司 | Anti-indentation acrylic transparent powder coating |
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Application publication date: 20181120 |