CN108212705A - Low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating and preparation method thereof - Google Patents
Low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating and preparation method thereof Download PDFInfo
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- CN108212705A CN108212705A CN201711366958.2A CN201711366958A CN108212705A CN 108212705 A CN108212705 A CN 108212705A CN 201711366958 A CN201711366958 A CN 201711366958A CN 108212705 A CN108212705 A CN 108212705A
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- Prior art keywords
- fluorinated polyurethane
- composite coating
- teflon composite
- corrosion
- low temperature
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
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Abstract
The invention discloses a kind of preparation methods of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating, are as follows：（1）Material surface pre-processes；（2）Bonding agent is brushed in pretreated material surface, is stopped 78 hours, coating is made to be bonded with base material more secured；（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface and is cured.Water engineering machinery surface is sprayed at using fluorinated polyurethane/Teflon Composite Coating so that the low temperature resistivity and corrosion resistance of water engineering machinery, wearability are greatly improved, and extend the service life of material.Optimal processing parameter can be selected to improve the performance of coating by the appropriate adjusting to spray parameters.The coating has higher wearability, and coating surface is highly polished.
Description
Technical field
The invention belongs to coating for metal surfaces preparing technical fields, and in particular to a kind of low temperature resistant hydraulic engineering wear-and corrosion-resistant
Fluorinated polyurethane/Teflon Composite Coating and preparation method thereof.
Background technology
In hydraulic engineering, flow is often larger, and certain areas water temperature in winter is very low, water conservancy machinery surface metal material with
The decline of temperature its brittleness to gradually increase.Sandstone are more in flow, and water velocity is larger, and sandstone etc. is to water engineering machinery table
Face generates huge impact, and under load impacting repeatedly, water engineering machinery surface generates cellular hole and in flakes
Unevenness, these small surface defects constantly expand under continuous impact, and then form abrasion, cause water conservancy
It the engineering machinery lost of life or even can not run, the prior art on water engineering machinery surface by using surface protection coating
It improves the wear-and corrosion-resistant performance on its surface, by constantly developing, has become and improve having for engineering component wear-resisting erosion resistance
Effect means, but existing surface protection coating hydraulic performance decline when low temperature is apparent, and coating material surface smoothness is relatively low, easily
The surface defects such as hole, wearability are generated, corrosion resistance reduces, and water engineering machinery service life reduces.
Invention content
The present invention the problem of performance, service life decline, is provided for traditional water conservancy engineering machinery under low temperature mal-condition
A kind of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating and preparation method thereof, greatly improves
The lower temperature resistance of water engineering machinery, wearability and anticorrosive property, extend service life.
The purpose of the present invention is what is realized in the following manner：
A kind of preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating is specific to walk
It is rapid as follows：
（1）Material surface pre-processes；
（2）Bonding agent is brushed in pretreated material surface, is stopped 7-8 hours, coating is made to be bonded with base material more secured；
（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface and is cured.
Step（1）Specially：Corrosion is removed, simultaneously blasting treatment of polishing.
Step（2）In bonding agent be NR-9600.
Step（3）The thickness of middle fluorinated polyurethane/Teflon Composite Coating is 0.5-4mm.
Step（3）Middle fluorinated polyurethane/Teflon Composite Coating is by fluorinated polyurethane, polytetrafluoroethylene (PTFE), polyamide
Curing agent forms, 10%-45% of the polytetrafluoroethylene (PTFE) volume fraction for fluorinated polyurethane volume, the volume fraction of polyamide curing agent
2-8% for fluorinated polyurethane volume.
The polyamide curing agent is polyamide curing agent 650.
The spraying conditions of the fluorinated polyurethane/Teflon Composite Coating are：Spray pressure 0.65MPa-
0.75Mpa walks rifle speed 35cm/s-65cm/s, spray distance 12cm-20cm, 30 DEG C -70 DEG C of spraying temperature.
The preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating as described above
Fluorinated polyurethane/Teflon Composite Coating of preparation.
Relative to the prior art, beneficial effects of the present invention are：
1. water engineering machinery surface is sprayed at using fluorinated polyurethane/Teflon Composite Coating so that hydraulic engineering machine
The low temperature resistivity and corrosion resistance of tool, wearability are greatly improved, and extend the service life of material.
2. the toughness of material is preferable, wind and wave resistance scouring capability is strong, still has preferable elasticity and toughness at low temperature, resists
Low temperature ability is strong.Process of the present invention does not need to complicated, special processing unit and facility, compared with other coating sides
Method has that expense is low, and face coat preparation parameter is easily controllable and the advantage that reaches.
3. optimal processing parameter can be selected to improve the performance of coating by the appropriate adjusting to spray parameters.The coating
With higher wearability, and coating surface is highly polished.
4. fluorinated polyurethane/Teflon Composite Coating material is consolidated by fluorinated polyurethane, polytetrafluoroethylene (PTFE) and polyamide
Agent is prepared into, when the addition of polyamide curing agent can shorten the solidification of fluorinated polyurethane/Teflon Composite Coating material
Between, setting rate improves 1.4-2.5 times.
Specific embodiment
Polyamide curing agent used in the present invention is commercially available, purchased from Xuzhou Chinaresearch Science＆Technology Industry Co., Ltd..
Embodiment 1：
A kind of preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating is specific to walk
It is rapid as follows：
（1）Material surface pre-processes；
（2）Bonding agent is brushed in pretreated material surface, is stopped 7-8 hours, coating is made to be bonded with base material more secured；
（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface and is cured.
Step（1）Specially：Corrosion is removed, simultaneously blasting treatment of polishing.
Step（2）In bonding agent be NR-9600.
Step（3）The thickness of middle fluorinated polyurethane/Teflon Composite Coating is 0.5-4mm.
Step（3）Middle fluorinated polyurethane/Teflon Composite Coating is by fluorinated polyurethane, polytetrafluoroethylene (PTFE), polyamide
Curing agent forms, 10%-45% of the polytetrafluoroethylene (PTFE) volume fraction for fluorinated polyurethane volume, the volume fraction of polyamide curing agent
2-8% for fluorinated polyurethane volume.
Polyamide curing agent is polyamide curing agent 650.
The spraying conditions of fluorinated polyurethane/Teflon Composite Coating are：Spray pressure 0.65MPa-0.75Mpa, is walked
Rifle speed 35cm/s-65cm/s, spray distance 12cm-20cm, 30 DEG C -70 DEG C of spraying temperature.
The preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating as described above
Fluorinated polyurethane/Teflon Composite Coating of preparation.
Embodiment 2：
A kind of preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating is specific to walk
It is rapid as follows：
（1）Material surface removes corrosion, simultaneously blasting treatment of polishing；
（2）NR-9600 is brushed in pretreated material surface, is stopped 7 hours, coating is made to be bonded with base material more secured；
（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface, cures 3h；
The thickness of fluorinated polyurethane/Teflon Composite Coating is 0.5mm；Fluorinated polyurethane/Teflon Composite Coating
Spraying conditions be：Spray pressure 0.65Mpa walks rifle speed 35m/s, spray distance 12cm, 30 DEG C of spraying temperature.
Fluorinated polyurethane/Teflon Composite Coating is by fluorinated polyurethane, polytetrafluoroethylene (PTFE), polyamide curing agent group
Into polytetrafluoroethylene (PTFE) volume fraction is the 10% of fluorinated polyurethane volume, and the volume fraction of polyamide curing agent is fluorinated polyurethane
The 2% of volume.
Embodiment 3：
A kind of preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating is specific to walk
It is rapid as follows：
（1）Material surface removes corrosion, simultaneously blasting treatment of polishing；
（2）NR-9600 is brushed in pretreated material surface, is stopped 7.2 hours, coating is made to be bonded with base material more secured；
（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface, cures 3.5h；
The coating layer thickness of fluorinated polyurethane/Teflon Composite Coating is 1.0mm；Fluorinated polyurethane/polytetrafluoroethylene (PTFE) is compound
The spraying conditions of coating are：Spray pressure 0.68Mpa walks rifle speed 45cm/s, spray distance 14cm, 40 DEG C of spraying temperature.
Fluorinated polyurethane/Teflon Composite Coating is by fluorinated polyurethane, polytetrafluoroethylene (PTFE), polyamide curing agent group
Into polytetrafluoroethylene (PTFE) volume fraction is the 20% of fluorinated polyurethane volume, and the volume fraction of polyamide curing agent is fluorinated polyurethane
The 3% of volume.
Embodiment 4：
A kind of preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating is specific to walk
It is rapid as follows：
（1）Material surface removes corrosion, simultaneously blasting treatment of polishing；
（2）NR-9600 is brushed in pretreated material surface, is stopped 7.5 hours, coating is made to be bonded with base material more secured；
（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface, cures 4h；
The coating layer thickness of fluorinated polyurethane/Teflon Composite Coating is 2.0mm；Fluorinated polyurethane/polytetrafluoroethylene (PTFE) is compound
The spraying conditions of coating are：Spray pressure 0.70Mpa walks rifle speed 50cm/s, spray distance 16cm, 50 DEG C of spraying temperature.
Fluorinated polyurethane/Teflon Composite Coating is by fluorinated polyurethane, polytetrafluoroethylene (PTFE), polyamide curing agent group
Into polytetrafluoroethylene (PTFE) volume fraction is the 30% of fluorinated polyurethane volume, and the volume fraction of polyamide curing agent is fluorinated polyurethane
The 5% of volume.
Embodiment 5：
A kind of preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating is specific to walk
It is rapid as follows：
（1）Material surface removes corrosion, simultaneously blasting treatment of polishing；
（2）NR-9600 is brushed in pretreated material surface, is stopped 7.8 hours, coating is made to be bonded with base material more secured；
（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface, cures 4.5h；
The coating layer thickness of fluorinated polyurethane/Teflon Composite Coating is 3.0mm；Fluorinated polyurethane/polytetrafluoroethylene (PTFE) is compound
The spraying conditions of coating are：Spray pressure 0.72Mpa walks rifle speed 55cm/s, spray distance 18cm, 60 DEG C of spraying temperature.
Fluorinated polyurethane/Teflon Composite Coating is by fluorinated polyurethane, polytetrafluoroethylene (PTFE), polyamide curing agent group
Into polytetrafluoroethylene (PTFE) volume fraction is the 40% of fluorinated polyurethane volume, and the volume fraction of polyamide curing agent is fluorinated polyurethane
The 6% of volume.
Embodiment 6：
A kind of preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating is specific to walk
It is rapid as follows：
（1）Material surface removes corrosion, simultaneously blasting treatment of polishing；
（2）NR-9600 is brushed in pretreated material surface, is stopped 8 hours, coating is made to be bonded with base material more secured；
（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface, cures 5h；
The coating layer thickness of fluorinated polyurethane/Teflon Composite Coating is 4.0mm；Fluorinated polyurethane/polytetrafluoroethylene (PTFE) is compound
The spraying conditions of coating are：Spray pressure 0.75Mpa walks rifle speed 65cm/s, spray distance 20cm, 70 DEG C of spraying temperature.
Fluorinated polyurethane/Teflon Composite Coating is by fluorinated polyurethane, polytetrafluoroethylene (PTFE), polyamide curing agent group
Into polytetrafluoroethylene (PTFE) volume fraction is the 45% of fluorinated polyurethane volume, and the volume fraction of polyamide curing agent is fluorinated polyurethane
The 8% of volume.
At room temperature, it is tested by erosion-wear-resisting, steel alloy abraded quantity is 1.6836 × 10-3Kg uses general protection
Coating erosion amount is 1.2334 × 10-3Kg, fluorinated polyurethane/Teflon Composite Coating abraded quantity are 0.7534 × 10- 3kg.Under low temperature condition below 0 DEG C, steel alloy abraded quantity is 2.3586 × 10-3Kg uses common protective coating abraded quantity
It is 1.9436 × 10-3Kg, fluorinated polyurethane/Teflon Composite Coating abraded quantity are 1.1641 × 10-3kg.Low temperature environment
Under, the friction coefficient of common protective coating is 0.71 or so in 50 coefficients of internal friction of cycle, is risen to after 80 cycles are reached
0.79 or so, fluorinated polyurethane/Teflon Composite Coating is 0.40 or so in 50 coefficients of internal friction of cycle, when reaching 80
0.51 or so is risen to after secondary cycle.In artificial ageing resistance experiment, common protective coating sample is after 23 periods：Sample
Glossiness by the 19.2Gs of original sample drop to 8.9Gs, the gloss of fluorinated polyurethane/Teflon Composite Coating sample
Degree by the 16.0Gs of original sample drop to 10.9Gs.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Under the premise of general idea of the present invention is not departed from, several changes and improvements can also be made, these should also be considered as the present invention's
Protection domain.
Claims (8)
1. a kind of preparation method of low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating, special
Sign is：It is as follows：
（1）Material surface pre-processes；
（2）Bonding agent is brushed in pretreated material surface, is stopped 7-8 hours, coating is made to be bonded with base material more secured；
（3）Fluorinated polyurethane/Teflon Composite Coating is sprayed in adhesive surface and is cured.
2. low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating according to right will play 1
Preparation method, it is characterised in that：Step（1）Specially：Corrosion is removed, simultaneously blasting treatment of polishing.
3. low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating according to right will play 1
Preparation method, it is characterised in that：Step（2）In bonding agent be NR-9600.
4. low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating according to right will play 1
Preparation method, it is characterised in that：Step（3）The thickness of middle fluorinated polyurethane/Teflon Composite Coating is 0.5-4mm.
5. low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating according to right will play 1
Preparation method, it is characterised in that：Step（3）Middle fluorinated polyurethane/Teflon Composite Coating is by fluorinated polyurethane, poly- four
Vinyl fluoride, polyamide curing agent composition, polytetrafluoroethylene (PTFE) volume fraction is the 10%-45% of fluorinated polyurethane volume, and polyamide is solid
The volume fraction of agent is the 2-8% of fluorinated polyurethane volume.
6. low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating according to right will play 5
Preparation method, it is characterised in that：The polyamide curing agent is polyamide curing agent 650.
7. low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating according to right will play 1
Preparation method, it is characterised in that：The spraying conditions of the fluorinated polyurethane/Teflon Composite Coating are：Spray pressure
0.65MPa-0.75Mpa walks rifle speed 35cm/s-65cm/s, spray distance 12cm-20cm, 30 DEG C -70 DEG C of spraying temperature.
8. low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/polytetrafluoroethylene (PTFE) as described in claim 1-7 is any is compound
Fluorinated polyurethane/Teflon Composite Coating prepared by the preparation method of coating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711366958.2A CN108212705A (en) | 2017-12-18 | 2017-12-18 | Low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711366958.2A CN108212705A (en) | 2017-12-18 | 2017-12-18 | Low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating and preparation method thereof |
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| CN108212705A true CN108212705A (en) | 2018-06-29 |
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| CN201711366958.2A Pending CN108212705A (en) | 2017-12-18 | 2017-12-18 | Low temperature resistant hydraulic engineering wear-and corrosion-resistant fluorinated polyurethane/Teflon Composite Coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648254A (en) * | 2018-10-31 | 2019-04-19 | 慈溪宏康汽车零部件有限公司 | The preparation method of antifriction washer for Automobile drive axle assembly |
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| CN105694610A (en) * | 2016-04-14 | 2016-06-22 | 大连理工大学 | Preparation method of super-hydrophobic coating applied to extremely severe conditions |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110200754A1 (en) * | 2008-10-17 | 2011-08-18 | Battelle Memorial Institute | Corrosion resistant primer coating |
| CN105694610A (en) * | 2016-04-14 | 2016-06-22 | 大连理工大学 | Preparation method of super-hydrophobic coating applied to extremely severe conditions |
Non-Patent Citations (2)
| Title |
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| 卢伟: "氟化聚氨酯弹性耐气蚀涂层的组织及性能分析", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648254A (en) * | 2018-10-31 | 2019-04-19 | 慈溪宏康汽车零部件有限公司 | The preparation method of antifriction washer for Automobile drive axle assembly |
| CN109648254B (en) * | 2018-10-31 | 2020-11-13 | 慈溪宏康汽车零部件有限公司 | Preparation method of antifriction washer for automobile drive shaft assembly |
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