CN1039591C - Wear-resistant corrosion-proof coating solidified at normal temperature - Google Patents
Wear-resistant corrosion-proof coating solidified at normal temperature Download PDFInfo
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- CN1039591C CN1039591C CN92112149A CN92112149A CN1039591C CN 1039591 C CN1039591 C CN 1039591C CN 92112149 A CN92112149 A CN 92112149A CN 92112149 A CN92112149 A CN 92112149A CN 1039591 C CN1039591 C CN 1039591C
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Abstract
The present invention relates to wear-resistant severe-corrosion resisting paint which is solidified at normal temperature and is composed of a binding agent, a wear-resistant filling material, preservative and an organic solvent, wherein the binding agent adopts polyurethane, and the wear-resistant filling material and the preservative are composed of polytetrafluoroethylene, a complex compound (MCA) of melamine and cyanuric acid, and metallic oxide. The present invention has the advantages of convenient construction, solidification at normal temperature, single component and high bonding strength, has the combination properties of wear resistance and resistance to severe corrosion, etc., and is adequate to be used at-30 to 200 DEG C.
Description
The present invention has narrated a kind of wear-resistant corrosion-proof coating solidified at normal temperature, and specifically, the present invention has narrated a kind of ambient cure and has been adapted at-30 ℃ to 200 ℃ uses down, urethane～tetrafluoroethylene type coating.
At present, generally speaking, the coating of mechanical means, component surface mostly lacks excellent comprehensive performances.Coating commonly used all is difficult to possess simultaneously: easy construction, ambient cure, with the cohesive strength height of ground, friction durability is long, over-all propertieies such as anticorrosion, the oil resistant of excellence.The Chinese Shanghai kairine is made the Great Wall board polyurethane paint that lacquer factory produces, and is two canned, can use after allocating by designated ratio with preceding palpus.The moisture cure urethanes that U.S. Mobay company produces only can need topped finish paint can satisfy requirement (the Modern Paint of special operation condition as priming paint and intermediate layer coating; Coating, 1987, (3), 30～33).
The objective of the invention is to overcome existing technical deficiency, and provide a kind of can be in ambient cure, have the good coating of wear-resisting, heavy over-all properties such as anticorrosion, can be in-30 ℃～200C ℃ coating of using down.
Purpose of the present invention realizes by following measure:
Wear-resistant corrosion-proof coating solidified at normal temperature of the present invention is made up of binding agent, wear resistant filler, sanitas and mixed organic solvents.Binding agent is selected urethane for use.Wear resistant filler and sanitas are selected tetrafluoroethylene, trimeric cyanamide-cyanurate complex compound (MCA), metal oxide for use.Organic solvent such as ketone, aromatic hydrocarbon mixes the composition mixed solvent mutually.
Wear-resistant corrosion-proof coating solidified at normal temperature of the present invention specifically consists of (in parts by weight): 100 parts of urethane, 20～66 parts of polytetrafluoroethylene powders, 10～27 parts in MCA powder, 4～25 parts of metal oxides, 300～1000 parts of mixed solvents.
Binding agent of the present invention is a urethane, and it can make coating have excellent cohesive force, higher physical strength.Contain isocyanic ester and long aliphatic chain in the polyurethane molecular, isocyanate group content 5～7%, solid content 50%, molecular weight 2000, liquid.
Tetrafluoroethylene has very low frictional coefficient, the chemical stability of height, and the use temperature scope of broad and complete uninflammability, its intermolecular attraction and associated surface free energy are very low.Polytetrafluoroethylene powder of the present invention need through
60Co 2 * 10
1～3.5 * 10
5The radiation treatment of Gy can make cohesive force lower like this, more helps disperseing.Below the tetrafluoroethylene granularity 2 μ m.
The adding of trimeric cyanamide-cyanurate complex compound (MCA) is guaranteed the wear resistance of coating, and can improve the anti-portative power of tetrafluoroethylene.MCA of the present invention is a kind of white solid powder that soapy feeling is arranged, for surface structure suc as formula (I), molecular weight 255.2, proportion 1.52, granularity 0.5～5 μ m, 440 ℃～459 ℃ of heat decomposition temperatures.
The adding of metal oxide can improve the hardness and the wear resistance of coating.Metal oxide of the present invention refers to aluminum oxide, plumbous oxide, Z 250, antimonous oxide, cupric oxide, Cadmium oxide, for Powdered, and granularity 0.5～8 μ m.
Ketone, aromatic hydrocarbon mixed solvent be dissolve polyurethane well, also can disperse the fillers such as polytetrafluoroethylene powder behind the irradiation, and is convenient to construction.The ketone that is suitable for is: acetone, butanone, pimelinketone, aromatic hydrocarbon are benzene,toluene,xylene, are the organic mixed solvent of dispersion of coating but preferably select the mixed solution of acetone, pimelinketone, dimethylbenzene for use.Specifically consist of (volume percentage amounts): acetone 23～55%, pimelinketone 7～30%, surplus dimethylbenzene.
The present invention can also realize by following measure; Earlier will be through the tetrafluoroethylene of radiation treatment, MCA, metal oxide carries out ground and mixed, then urethane is dissolved in ketone, the aromatic hydrocarbon mixed solvent, ground solid material adds in the dissolved binder solution, stir, promptly become wear-resistant corrosion-proof coating solidified at normal temperature of the present invention.
Wear-resistant corrosion-proof coating solidified at normal temperature of the present invention needs metallic substance rust cleaning oil removing when metal material surface applies, and carries out the sandblast bonderizing with sand papering or to the surface, handles carrying out surface roughening to material before the coating of metallic substance.
Coating method of the present invention is achieved in that
1. spraying: under 0.15～0.25MPa air pressure, make gun slot, coating is sprayed in article surface apart from 150～200 millimeters of objects.
2. dip-coating: object directly is dipped in the coating, for several times, reaches till the satisfied thickness repeatedly.
3. brush: coating of the present invention can obtain paint brush with painting brush in article surface
.
Coat-thickness of the present invention is controlled at 20～150 μ m can obtain promising result.
Characteristics of the present invention are as follows:
1. wear-resisting.
A. coating is loaded at Timken (encircling) trier 312N, under the 2.5m/s linear velocity condition, and frictional coefficient 0.19～0.27, be 3000～10000m/ μ m friction durability.
B. in gasoline the coating of soaking at room temperature after 1000 hours under these conditions, frictional coefficient, friction durability are constant.
C. in machinery oil the coating of soaking at room temperature after 1000 hours under these conditions,
Frictional coefficient 0.17～0.25, friction durability is constant.
D. coating when dripping machinery oil under these conditions, frictional coefficient 0.08～0.12, friction durability is constant.
E. coating 200 ℃ the baking 24 hours after under these conditions, be 300～600m/ μ m friction durability.
2. heavy anticorrosion (coat-thickness 40～60 μ m):
A. oil resistant
I. above-mentioned b, c, d item;
II. with reference to GB:
1) GB1734-79 soaked 1000 hours in the room temperature underlying gasoline, and coating does not have efflorescence, and is non-foaming, wrinkle resistant, and nothing is peeled off, nondiscoloration.
2) G81739-79 was immersed in 105 ℃ the transformer oil 24 hours, and coating does not have efflorescence, and is wrinkle resistant, non-foaming, and nothing is peeled off, nondiscoloration.
3) G81739-79 soaked 1000 hours in machinery oil under the room temperature, and coating does not have efflorescence, and is wrinkle resistant, non-foaming, and nothing is peeled off, nondiscoloration.
B. anticorrosion:
1) water tolerance: GB1733-79, tap water soaked 12 months, and coating does not have efflorescence, and is wrinkle resistant, non-foaming, and nothing is peeled off, no rust spot, nondiscoloration.
2) resistance to salt water: GB1763-79,3%NaCl soaked 12 months, and coating does not have efflorescence, and is non-foaming, and nothing is peeled off, no rust spot, nondiscoloration.
3) alkali resistance: GB1763-79,5%NaOH soaked 6 months, and coating does not have efflorescence, and is wrinkle resistant, non-foaming, and nothing is peeled off, no rust spot.
4) acid resistance: GB1763-79,5%H
2SO
4Soaked 2 months, coating does not have efflorescence, and is wrinkle resistant, non-foaming, and nothing is peeled off, no rust spot.
3. physical strength:
1) sticking power: GB1720-79, draws the circle method by 2 grades.
2) snappiness: GB1731-79,1mm, deflection method.
3) shock-resistance: GB1732-79,5N-m just recoils, and coating does not have and peels off flawless.
4) thermotolerance: GB1735-79,250 ℃, 24 hours, coating did not have efflorescence, and is wrinkle resistant, non-foaming, and nothing is peeled off.
Prescription according to table 1 and table 2 earlier will be through the tetrafluoroethylene of radiation treatment, MCA, and metal oxide carries out ground and mixed, then urethane is dissolved in ketone, the aromatic hydrocarbon mixed solvent, ground solid material adds in the dissolved binding agent, stirs, and promptly becomes coating of the present invention.Apply by GB GB1727-79 method, the metallic substance sand papering is cleaned with acetone, does the back and applies.The mode and the thickness that apply see Table 3, wherein are sprayed under 0.15～0.25MPa air pressure, and gun slot is carried out under 150～250 millimeters conditions of object.Coating is wear-resisting, oil resistance as previously mentioned.
The concrete prescription of table 1. coating
| The prescription sequence number | Tetrafluoroethylene | MCA | Metal oxide | Ketone, aromatic hydrocarbon mixed solvent |
| Example 1 | 65 | 20 | A 10 | 9000 |
| 2 | 30 | 13 | B 25 | 600 |
| 3 | 44 | 25 | C 6 | 370 |
| 4 | 33 | 19 | D 20 | 700 |
| 5 | 22 | 12 | E 18 | 500 |
| 6 | 51 | 23 | F 9 | 500 |
| 7 | 56 | 10 | A 15 | 600 |
| 8 | 38 | 15 | E 13 | 1000 |
| 9 | 60 | 21 | F 7 | 1000 |
| 10 | 25 | 11 | C 16 | 800 |
| 11 | 47 | 26 | D 5 | 700 |
| 12 | 30 | 16 | B 16 | 800 |
| 13 | 60 | 33 | F 24 | 700 |
The volumn concentration of table 2 ketone, aromatic hydrocarbon mixed solvent
Annotate: each component is all in gram, and the amount of urethane is 100 grams in each prescription.A, B, C, D, E, F represent aluminum oxide, plumbous oxide, Z 250, antimonous oxide, cupric oxide, Cadmium oxide respectively.
| The prescription sequence number | Acetone | Pimelinketone | Dimethylbenzene |
| Example 1 | 50 | 30 | 20 |
| 2 | 25 | 27 | 48 |
| 3 | 30 | 9 | 61 |
| 4 | 37 | 11 | 52 |
| 5 | 44 | 18 | 38 |
| 6 | 29 | 24 | 47 |
| 7 | 48 | 7 | 45 |
| 8 | 35 | 15 | 50 |
| 9 | 23 | 15 | 62 |
| 10 | 55 | 20 | 25 |
| 11 | 48 | 12 | 40 |
| 12 | 26 | 30 | 44 |
| 13 | 33 | 22 | 45 |
Table 3 coating method and thickness
| The prescription sequence number | Coating method | Thickness/μ m |
| Example 1 | Spraying | 40 |
| 2 | Spraying | 30 |
| 3 | Spraying | 25 |
| 4 | Spraying | 40 |
| 5 | Spraying | 30 |
| 6 | Spraying | 20 |
| 7 | Brush | 100 |
| 8 | Dip-coating | 70 |
| 9 | Spraying | 60 |
| 10 | Spraying | 40 |
| 11 | Spraying | 25 |
| 12 | Dip-coating | 60 |
| 13 | Brush | 110 |
Claims (3)
1, a kind of wear-resistant corrosion-proof coating solidified at normal temperature is made up of binding agent, wear resistant filler, sanitas and ketone, aromatic hydrocarbon mixed solvent, it is characterized in that the concrete prescription of coating is (parts by weight):
100 parts of urethane
20～66 parts of tetrafluoroethylene
10～27 parts of trimeric cyanamides-cyanurate complex compound (MCA)
4～15 parts of metal oxides
300～1000 parts of ketone, aromatic hydrocarbon mixed solvents;
Contain isocyanic ester and long aliphatic chain in its molecule of urethane, isocyanate group content 5～7%, solid content 50%, molecular weight 2000, liquid; Tetrafluoroethylene is used
60Co2 * 10
1～3.5 * 10
5The Gy radiation treatment is below the granularity 2 μ m; Trimeric cyanamide-cyanurate complex compound (MCA), molecular weight 255.2, proportion 1.52, granularity 0.5～5 μ m, 440 ℃～459 ℃ of heat decomposition temperatures.
2, coating as claimed in claim 1 is characterized in that metal oxide is aluminum oxide, plumbous oxide, Z 250, antimonous oxide, cupric oxide, Cadmium oxide.
3, coating as claimed in claim 1 is characterized in that the volume percentage amounts of ketone, aromatic hydrocarbon mixed solvent is:
Acetone 23～55%
Pimelinketone 7～30%
The dimethylbenzene surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92112149A CN1039591C (en) | 1992-09-23 | 1992-09-23 | Wear-resistant corrosion-proof coating solidified at normal temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92112149A CN1039591C (en) | 1992-09-23 | 1992-09-23 | Wear-resistant corrosion-proof coating solidified at normal temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1086530A CN1086530A (en) | 1994-05-11 |
| CN1039591C true CN1039591C (en) | 1998-08-26 |
Family
ID=4945766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92112149A Expired - Fee Related CN1039591C (en) | 1992-09-23 | 1992-09-23 | Wear-resistant corrosion-proof coating solidified at normal temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1039591C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072698C (en) * | 1997-12-30 | 2001-10-10 | 中国科学院兰州化学物理研究所 | Polyurethane normal temp. solidified anticorrosion lubricating paint |
| CN100371404C (en) * | 2006-06-13 | 2008-02-27 | 中北大学 | Wax deposition resistant coating for oil pipeline |
| CN102417788A (en) * | 2011-11-22 | 2012-04-18 | 吴江市天源塑胶有限公司 | Low-temperature quick-drying anticorrosive paint |
| CN102974519B (en) * | 2012-11-15 | 2014-06-11 | 宝鸡森特瑞石油机械科技有限公司 | Anticorrosive technology used for marine environment fastener |
| CN103756539A (en) * | 2013-12-30 | 2014-04-30 | 苏州市邦成电子科技有限公司 | Wear-resistant paint for rubber |
| CN104212323A (en) * | 2014-09-18 | 2014-12-17 | 江苏海晟涂料有限公司 | Room-temperature self-setting corrosion protective coating and preparation method thereof |
| CN104480719B (en) * | 2014-11-29 | 2016-08-31 | 青岛华凯海洋科技有限公司 | A kind of wear-resisting and weatherability cable coating |
| CN109535971B (en) * | 2018-11-22 | 2020-04-21 | 海洋化工研究院有限公司 | Wear-resistant self-lubricating coating and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0293084A2 (en) * | 1987-05-28 | 1988-11-30 | Lord Corporation | Reaction products of reactive silicone, polyol, and isocyanate, urethane-siloxane copolymers and coating compositions, methods of coating, coated articles, and prepolymer solutions thereof |
-
1992
- 1992-09-23 CN CN92112149A patent/CN1039591C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0293084A2 (en) * | 1987-05-28 | 1988-11-30 | Lord Corporation | Reaction products of reactive silicone, polyol, and isocyanate, urethane-siloxane copolymers and coating compositions, methods of coating, coated articles, and prepolymer solutions thereof |
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| Publication number | Publication date |
|---|---|
| CN1086530A (en) | 1994-05-11 |
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