CA2070278A1 - Surface coating member - Google Patents
Surface coating memberInfo
- Publication number
- CA2070278A1 CA2070278A1 CA 2070278 CA2070278A CA2070278A1 CA 2070278 A1 CA2070278 A1 CA 2070278A1 CA 2070278 CA2070278 CA 2070278 CA 2070278 A CA2070278 A CA 2070278A CA 2070278 A1 CA2070278 A1 CA 2070278A1
- Authority
- CA
- Canada
- Prior art keywords
- parts
- surface coating
- coating member
- solid lubricant
- rubber
- 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.)
- Abandoned
Links
Abstract
The present invention concerns a surface coating sliding member made of rubber or plastic applied with a coating of excellent durability and high sliding property, in which the coating contains a solid lubricant such as molybdenum disulfide and a resin matrix, wherein the resin matrix comprises a fluoro-olefin vinyl ether polymer resin and/or fluoro-olefin vinyl ether vinyl ester copolymer.
Description
, 7 v SURFACE COATING MEMBER
BACKGROUND OF THE INVENTION
Field of the Invention The present invention concerns a surface coating member and, more in particular, it relates to a surface coating members prepared by applying a lubricating coating to the surface of a rubber or plastic member such as wiper blade, seal packing, O-ring, weather strip, glass run, timing belt, rubber bellows, gear and door catcher. More in particular, the present invention relates to a surface coating member suitable as a surface-coated sliding member such as a wiper blade, glass run, weather strip and O-ring whose surface is in sliding contact with other members.
Description of the Prior Art For a wiper blade rubber, a molding product of natural rubber or synthetic rubber has been employed so -far.
However, the wiper rubber of this kind has the following drawbacks and hence is not always satis-factory.
That is, since an adhering phenomenon occurs between the wiper blade rubber and a glass surface in the damp-drying state or under cold climate condition, to bring about a so-called "locking phenomenon" in which the wiper
BACKGROUND OF THE INVENTION
Field of the Invention The present invention concerns a surface coating member and, more in particular, it relates to a surface coating members prepared by applying a lubricating coating to the surface of a rubber or plastic member such as wiper blade, seal packing, O-ring, weather strip, glass run, timing belt, rubber bellows, gear and door catcher. More in particular, the present invention relates to a surface coating member suitable as a surface-coated sliding member such as a wiper blade, glass run, weather strip and O-ring whose surface is in sliding contact with other members.
Description of the Prior Art For a wiper blade rubber, a molding product of natural rubber or synthetic rubber has been employed so -far.
However, the wiper rubber of this kind has the following drawbacks and hence is not always satis-factory.
That is, since an adhering phenomenon occurs between the wiper blade rubber and a glass surface in the damp-drying state or under cold climate condition, to bring about a so-called "locking phenomenon" in which the wiper
2~7~27~
operation is blocked, or a so-called "trembling phenomenon", that is, self-e~citing vibration due to the negative cha-racteristics of the velocity dependency of the frictional coefficient. This leads to problems such as (1) unsatis-factory wiping, (2) abnormal abrasion at the surface of the blade rubber, (3) shortening for the life in each of the connection portions of the wiper system,(4) increase in the consumption power for the operation motor and (5) eyesore and grating due to the trembling phenomenon.
For overcoming such problems, Japanese Patent Laid-Open Sho 55-15873 proposes to coat the rubber surface of a wiper blade with a silicone composition containing molybdenum disulfide.
However, in the wiper blade rubber having such a coating as described in the above-mentioned patent publi-cation, it has been found that the durability of the coating layer becomes poor. The problem also occurs in the weather strip or the glass run.
Further, the following drawbacks are also caused between the metal surface and the rubber material and the coating material not always has a satisfactory property.
That is, in an oil seal or gasoline cap seal, sticking occurs between the rubber and the metal surface to increase torque upon opening and closure. In an O-ring, packing or timing belt, there happens abnormal abrasion, stick slip ?, rl ~
or generation of ringing OWiIlg to high sliding resistance between the rubber and the metal surface. Also in rubber bellows, puncture occurs due to the abnormal abrasion.
Further, in a gear or door catcher made of polyacetal, nylon resin, etc. abnormal abrasion, ringing or creaking occurs.
For overcoming the foregoing problems, although a countermeasure such as coating of grease has been applied, this lacks in durability.
OBJECT AND SUMMARY OF THE INVENTION
The ob~ect of the present invention is to overcome the foregoing problems and provide a surface coating member having excellent sliding property and also high durability of the coating layer.
The sur-face coating member according to the present invention comprises a surface coating member in which a coating layer containing a solid lubricant and a resin matrix is formed at the surface, in which the resin matrix comprises a fluoro-olefin vinyl ether polymer resin and/or a fluoro-olefin vinyl ether vinyl ester copolYmer resin.
There is no particular restriction to rubber or plastic constituting the main body portion of the coating member according to the present invention but various kinds of rubber and plastic can be employed. The rubber may be 2~7~2 i8 either of natural or synthetic rubber. As an example o-f the synthetic rubber, there can be mentioned, for instance, styrene butadiene rubber, butadiene rubber, isoprene rubber, ethylene propYlene rubber (EPM, EPDM), acrylonitrile buta-diene rubber, chloroprene rubber, isobutylene isoprene rubber, al*in rubber, polyether rubber, polysulfide rubber, silicone rubber, acrylic rubber, fluoro rubber, halogenated polyethylene rubber, urethane rubber, ethylene vin~l acetate rubber, high styrene rubber and acrylonitrile isoprene rubber. Among themj EPDM is particularly, preferred.
As the plastic material, either of a thermosetting resin or a thermoplastic resin may be used.
As an example of the plastic, there can be mentioned, for instance, ABS resin, ABS blend, acetal resin (homo-polymer), acryl resin, ACS resin, alkyd resin, amino resin, ASA resin, cellulose type resin, chlorinated polyether, diallyl phthalate resin, epoxy resin, ethylene - vinyl acetate copolymer, fluoro resin, ionomer, methyl pentene polymer, phenol resin, polyamide (nylon), polyallyl ether, polyallyl sulfone, polybutene-1, polycarbonate, unsaturated polyester resin, polyethylene, polyethylene terephthalate (tetron), polyimide, polyamideimide, polyphenYlene oxide, polyphenylene sulfide, polypropylene, polystyrene, poly-sulfone, polyether sulfone, polyurethane, vinyl chloride ~ ~ 7 ~
resin and polyallylate.
The coating layer coating the rubber or plastic comprises a solid lubricant and a resin matrix.
As the resin matrix, a fluoro-ole-fin vinyl ether polymer resin and/or a fluoro-olefin vinyl e-ther vinyl ester copolymer resin may be used.
~ s the solid lubricant, there can be used, for example, sulfide such as molybdenum disulfide and tungsten disulfide, fluoride such as polytetrafluoro ethylene and fluorinated graphite, graphite and silicone powder. The solid lubricant described above may be used alone or as a combination of two or more of them. In the present invention, combined use of the sulfide, fluoro compound and graphite is preferred in view of the excellent lubrication resistance, fitness and feeling. In this case, the blending ratio for the sulfide, fluoro compound and graphite is preferably ~rom 10 to 1500 parts by weight of the sulfide and 100 to 3000 parts by weight of the fluoro compound based on 100 parts by weight of the graphite.
It is desirable that the solid lubricant has an average grain size of less than 10/um, preferably, less than 5 ~m, particularly, preferably, less than 3/um. The blending ratio o-f the solid lubricant and resin matrix is preferably from 50 to 95 parts by weight of the solid lubricant and 50 to 5 parts by weight of the resin matrix and, more 2 7 ~
preferably, from 70 to 90 parts by weight of the solid lubricant and 30 to 10 parts by weight of the resin matrix.
For forming the coating on the surface of the rubber or the plastic in the present invention, the solid lubri-cant, the resin matrix and a curing agent may be coated being dispersed or dissolved in an organic solvent.
As the curing agent, there can be used, for example, polyisocyanate and melamine resin.
As the organic solvent, methyl ethyl ketone, toluene, xylene, isopropyl alcohol, isobutanol, n-butanol, butyl acetate, MIBK and cellosolve acetate are preferred, for example.
As the coating method, various method such as brushing, spraying or dipping maY be employed. Prior to the coatin~, the sur~ace of the rubber or plastic may be cleaned or a surface treatment may be applied for improving the fitness with the resin matrix. For the surface treatment, a primer treatment can be mentioned.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Fig. 1 is a schematic side elevational view for illustrating the method of experiment.
g DESCRIPTION OF PREFERRED EM~ODIMENTS
The present will now be explained with reference to examples and comparative examples.
Compositions shown in the following (Comparative Example 1) - (Comparative Example 4), as well as (Example 1) - (Example 9) were sprayed on the surface of rubber pieces, and the compositions were cured under the curing conditions (heating conditions) shown for each of them, to form a coating layer at a thickness of 10 ~m to the surface of each of the rubber pieces. Each rubber piece was cut into a size o-f 10 mm x 6 mm x 2 mm to prepare a test piece. The coating surface was formed on the 10 mm x 6 mm surface of the test piece.
The test piece was mounted to FALEX No. 1 Tester (Faville-Levally Corporation) and the durability of the coating layer was examined.
Fig. 1 is a schematic side elevational view illustra-ting the state of the test, in which a test piece was held to a test piece holder 2 and urged to the outer circumfe-rential surface of a ring 3 of 35 mm diameter under a load of 9.06 kg (20 LBS). The outer circumferential surface of the ring 3 was made of SAE 4620 steel and the surface roughness was 6 - 12 rms. The ring 3 was reciprocally rotated around the axial center as shown by arrows within a rotational range of 90 at a rate of 100 cycle/min.
2~7~278 The number of cycles at which the frictional coeffi-cien~ reached 0.2 was measured as a life cycle. In a case where the coating layer was abraded to expose the rubber layer before the frictional coefficient reached 0.2, the number of cycles up to that time was defined as the life cycle.
The life cycle for each of the comparative examples and the examples is as shown in Table-l. The static -frictional coefficient and the dynamic frictional coef-ficient at the surface of the coating layer for each of the test pieces before the sliding movement with the ring
operation is blocked, or a so-called "trembling phenomenon", that is, self-e~citing vibration due to the negative cha-racteristics of the velocity dependency of the frictional coefficient. This leads to problems such as (1) unsatis-factory wiping, (2) abnormal abrasion at the surface of the blade rubber, (3) shortening for the life in each of the connection portions of the wiper system,(4) increase in the consumption power for the operation motor and (5) eyesore and grating due to the trembling phenomenon.
For overcoming such problems, Japanese Patent Laid-Open Sho 55-15873 proposes to coat the rubber surface of a wiper blade with a silicone composition containing molybdenum disulfide.
However, in the wiper blade rubber having such a coating as described in the above-mentioned patent publi-cation, it has been found that the durability of the coating layer becomes poor. The problem also occurs in the weather strip or the glass run.
Further, the following drawbacks are also caused between the metal surface and the rubber material and the coating material not always has a satisfactory property.
That is, in an oil seal or gasoline cap seal, sticking occurs between the rubber and the metal surface to increase torque upon opening and closure. In an O-ring, packing or timing belt, there happens abnormal abrasion, stick slip ?, rl ~
or generation of ringing OWiIlg to high sliding resistance between the rubber and the metal surface. Also in rubber bellows, puncture occurs due to the abnormal abrasion.
Further, in a gear or door catcher made of polyacetal, nylon resin, etc. abnormal abrasion, ringing or creaking occurs.
For overcoming the foregoing problems, although a countermeasure such as coating of grease has been applied, this lacks in durability.
OBJECT AND SUMMARY OF THE INVENTION
The ob~ect of the present invention is to overcome the foregoing problems and provide a surface coating member having excellent sliding property and also high durability of the coating layer.
The sur-face coating member according to the present invention comprises a surface coating member in which a coating layer containing a solid lubricant and a resin matrix is formed at the surface, in which the resin matrix comprises a fluoro-olefin vinyl ether polymer resin and/or a fluoro-olefin vinyl ether vinyl ester copolYmer resin.
There is no particular restriction to rubber or plastic constituting the main body portion of the coating member according to the present invention but various kinds of rubber and plastic can be employed. The rubber may be 2~7~2 i8 either of natural or synthetic rubber. As an example o-f the synthetic rubber, there can be mentioned, for instance, styrene butadiene rubber, butadiene rubber, isoprene rubber, ethylene propYlene rubber (EPM, EPDM), acrylonitrile buta-diene rubber, chloroprene rubber, isobutylene isoprene rubber, al*in rubber, polyether rubber, polysulfide rubber, silicone rubber, acrylic rubber, fluoro rubber, halogenated polyethylene rubber, urethane rubber, ethylene vin~l acetate rubber, high styrene rubber and acrylonitrile isoprene rubber. Among themj EPDM is particularly, preferred.
As the plastic material, either of a thermosetting resin or a thermoplastic resin may be used.
As an example of the plastic, there can be mentioned, for instance, ABS resin, ABS blend, acetal resin (homo-polymer), acryl resin, ACS resin, alkyd resin, amino resin, ASA resin, cellulose type resin, chlorinated polyether, diallyl phthalate resin, epoxy resin, ethylene - vinyl acetate copolymer, fluoro resin, ionomer, methyl pentene polymer, phenol resin, polyamide (nylon), polyallyl ether, polyallyl sulfone, polybutene-1, polycarbonate, unsaturated polyester resin, polyethylene, polyethylene terephthalate (tetron), polyimide, polyamideimide, polyphenYlene oxide, polyphenylene sulfide, polypropylene, polystyrene, poly-sulfone, polyether sulfone, polyurethane, vinyl chloride ~ ~ 7 ~
resin and polyallylate.
The coating layer coating the rubber or plastic comprises a solid lubricant and a resin matrix.
As the resin matrix, a fluoro-ole-fin vinyl ether polymer resin and/or a fluoro-olefin vinyl e-ther vinyl ester copolymer resin may be used.
~ s the solid lubricant, there can be used, for example, sulfide such as molybdenum disulfide and tungsten disulfide, fluoride such as polytetrafluoro ethylene and fluorinated graphite, graphite and silicone powder. The solid lubricant described above may be used alone or as a combination of two or more of them. In the present invention, combined use of the sulfide, fluoro compound and graphite is preferred in view of the excellent lubrication resistance, fitness and feeling. In this case, the blending ratio for the sulfide, fluoro compound and graphite is preferably ~rom 10 to 1500 parts by weight of the sulfide and 100 to 3000 parts by weight of the fluoro compound based on 100 parts by weight of the graphite.
It is desirable that the solid lubricant has an average grain size of less than 10/um, preferably, less than 5 ~m, particularly, preferably, less than 3/um. The blending ratio o-f the solid lubricant and resin matrix is preferably from 50 to 95 parts by weight of the solid lubricant and 50 to 5 parts by weight of the resin matrix and, more 2 7 ~
preferably, from 70 to 90 parts by weight of the solid lubricant and 30 to 10 parts by weight of the resin matrix.
For forming the coating on the surface of the rubber or the plastic in the present invention, the solid lubri-cant, the resin matrix and a curing agent may be coated being dispersed or dissolved in an organic solvent.
As the curing agent, there can be used, for example, polyisocyanate and melamine resin.
As the organic solvent, methyl ethyl ketone, toluene, xylene, isopropyl alcohol, isobutanol, n-butanol, butyl acetate, MIBK and cellosolve acetate are preferred, for example.
As the coating method, various method such as brushing, spraying or dipping maY be employed. Prior to the coatin~, the sur~ace of the rubber or plastic may be cleaned or a surface treatment may be applied for improving the fitness with the resin matrix. For the surface treatment, a primer treatment can be mentioned.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Fig. 1 is a schematic side elevational view for illustrating the method of experiment.
g DESCRIPTION OF PREFERRED EM~ODIMENTS
The present will now be explained with reference to examples and comparative examples.
Compositions shown in the following (Comparative Example 1) - (Comparative Example 4), as well as (Example 1) - (Example 9) were sprayed on the surface of rubber pieces, and the compositions were cured under the curing conditions (heating conditions) shown for each of them, to form a coating layer at a thickness of 10 ~m to the surface of each of the rubber pieces. Each rubber piece was cut into a size o-f 10 mm x 6 mm x 2 mm to prepare a test piece. The coating surface was formed on the 10 mm x 6 mm surface of the test piece.
The test piece was mounted to FALEX No. 1 Tester (Faville-Levally Corporation) and the durability of the coating layer was examined.
Fig. 1 is a schematic side elevational view illustra-ting the state of the test, in which a test piece was held to a test piece holder 2 and urged to the outer circumfe-rential surface of a ring 3 of 35 mm diameter under a load of 9.06 kg (20 LBS). The outer circumferential surface of the ring 3 was made of SAE 4620 steel and the surface roughness was 6 - 12 rms. The ring 3 was reciprocally rotated around the axial center as shown by arrows within a rotational range of 90 at a rate of 100 cycle/min.
2~7~278 The number of cycles at which the frictional coeffi-cien~ reached 0.2 was measured as a life cycle. In a case where the coating layer was abraded to expose the rubber layer before the frictional coefficient reached 0.2, the number of cycles up to that time was defined as the life cycle.
The life cycle for each of the comparative examples and the examples is as shown in Table-l. The static -frictional coefficient and the dynamic frictional coef-ficient at the surface of the coating layer for each of the test pieces before the sliding movement with the ring
3 were measured and the results are also shown together in Table-l.
From Table-l, it can be seen that the test pieces of Examples 1 - 9 according to the present invention have low friction coefficient and the durability of -the coating layer was remarkably high.
The average grain size of the solid lubricant used hereinafter is less than 5Jum in each of the cases.
In the following descriptions, "parts" means "parts by weight".
(Comparative Example 1) (Polyurethane resin) Nipporan 5185 100 parts (manufactured by Nippon Polyurethane Industry co.) 2 7 ~
(Isocyanate curing agent) Coronate HL10.0 parts Curing conditions: 80C - 30 min.
(Comparative Example 2) (Polyurethane resin) Nipporan 518526.0 parts (manufactured by Nippon Polyurethane Industry co.) (Molybdenum disulfide) Technical grade30.0 parts (manufactured by Climax Molybdenum Co.) (Polytetrafluoroethylene) Lubron L-542.0 parts (manufactured by Daikin Industry Co.) (Graphite) ACP 1000 2.0 parts (manufactured by Nippon Graphite Industry Co.) (Isocyanate curi~g agent) Coronate HL2.6 parts Curing conditions: 80C - 30 min.
Comparative Example 3) (corresponding to Example 3 in Japanese Patent Laid-Open Sho 55-15~73) KM-765 (Emulsion with 20% silicone content) 45 parts (manu~actured by Juetsu Chemical Co.) C-PM-4F (catalyst, manufactured by Juetsu Chemical Co.) 4.5 parts Molybdenum disulfide (4.5 / m average grain size) 4.0 parts Water 52.0 parts Curing condition: After leaving at a room temperature for 2 7 ~
10 min, a cured laYer was obtained at 150C - 10 min (Comparative Example 4) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 100 parts (manufactured by Dainippon Ink Chemical Industry Co.) (Isocyanate curing agent) Barnock DN980 24 parts (manufactured by Dainippon Ink Chemical Industry Co.) Curing condition: 80C - 10 min.
(Example 1) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 26 parts (manufactured by Dainippon Ink Chemical Industry Co.) (Molybdenum disulfide) Technical grade 30 parts (manufactured by Climax Molybdenum Co.) (Polytetrafluoro ethylene) Lubron L-5 42 parts (manufactured by Daikin Industry Co.~
(Graphite) ACP 1000 2 parts (manufactured by Nippon Graphite Industry Co.) (Isocyanate curing agent) Barnock DN980 6.2 parts (Dainippon Ink Chemical Industry Co.) Curing condition: 80C - 10 min.
2 7 ~
(Example 2) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 28 parts (manu-factured by Dainippon Ink Chemical Industry Co.) (Molybdenum disulfide) Technical grade10 parts (manufactured by Climax Molybdenum Co.) (Polytetrafluoro ethylene) Lubron L-560 parts (manufactured by Daikin Industry Co.) (Graphite) ACP 1000 2 parts (manufactured by Nippon Graphite Industry Co.) (Isocyanate curing agent) Barnock DN9806.7 parts (Dainippon Ink Chemical Industry Co.) Curing condition: 80C - 10 min.
(Example 3) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 28 parts (manufactured by Dainippon Ink Chemical Industry Co.) (Molybdenum disulfide) Technical grade47 parts (manufactured by Climax Molybdenum Co.) (Polytetrafluoro ethylene) Lubron L-523 parts (manufactured by Daikin Industry Co.) (Graphite) ACP 1000 2 parts (manufactured by Nippon Graphite Industry Co.) 2~7~27~
(Isocyanate curing agent) Barnock DN9806.7 parts (Dainippon Ink Chemical Industry Co.) Curing condition: 80C - 10 min.
(Example 4) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 49 parts (manufactured by Dainippon Ink Chemical Industry Co.) (Molybdenum disulfide) Technical grade 39 parts (Polytetrafluoro ethylene) Lubron L-5 10 parts (Graphite) ACP 1000 2 parts (Isocyanate curing agent) Barnock DN9806.7 parts Curing condition: 80C - 10 min.
(Example 5) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 49 parts (Molybdenum disulfide) Technical grade 47 parts (Polytetrafluoro ethylene) Lubron L-5 2.5 parts (Graphite) ACP 1000 1.5 parts (Isocyanate curing agent) Barnock DN98012.0 parts Curing condition: 80C - 10 min.
(Example 6) (Fluoro-olefin vinyl ether vinyl ester copolymer) v Fluonate K702 49 parts ~Molybdenum disulfide) Technical grade49 parts (Graphite) ACP 1000 2 parts (Isocyanate curing agent) Barnock DN98012 parts Curing condition: 80C - 10 min.
(Example 7) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate ~702 39 parts (Molybdenum disulfide) Technical grade59 parts ~Graphite) ACP 1000 2 parts (Isocyanate curing agent) Barnock DN9809.4 parts Curing condition: 80C - 10 min.
(Example 8) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 28 par~s (Molybdenum disulfide) Technical grade70 parts (Graphite) ACP 1000 2 parts ~Isocyanate curin~ agent) Barnock DN980 6.7 parts Curing condition: 80C - 10 min.
(Example 9) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 20 parts 2~7~278 (Mol~bdenum disulfide) Technical grade 78 parts (Graphite) ACP 1000 2 parts (Isocyanate curing agent) Barnock DN980 4.8 parts Curing condition: 80C - 10 min.
.
0 ~ o ~7~2~
X o. o ~
~ _ ~o o X o o C~
E ~_ ~ _1 O
X OO
a O~ O __ : ~ a~ ~ ' o--~ .. O
E ~ O O O
'~ '~ O ~D O--Dx o o o E~ .1 o ~ o ~ E d' C~ C~O O
x o o CL E ~r) -- ~ O
O ~ OO _ O C~ ~ O
e X OO
~ ~_ ~n ~
a~ Q ~ ~ LL~ _ _ _ .
2~7~27~
As has been described above, the surface coating member according to the present invention has an extremely low friction coefficient for the coating surfaee and the durability of the eoating layer is remarkably high.
From Table-l, it can be seen that the test pieces of Examples 1 - 9 according to the present invention have low friction coefficient and the durability of -the coating layer was remarkably high.
The average grain size of the solid lubricant used hereinafter is less than 5Jum in each of the cases.
In the following descriptions, "parts" means "parts by weight".
(Comparative Example 1) (Polyurethane resin) Nipporan 5185 100 parts (manufactured by Nippon Polyurethane Industry co.) 2 7 ~
(Isocyanate curing agent) Coronate HL10.0 parts Curing conditions: 80C - 30 min.
(Comparative Example 2) (Polyurethane resin) Nipporan 518526.0 parts (manufactured by Nippon Polyurethane Industry co.) (Molybdenum disulfide) Technical grade30.0 parts (manufactured by Climax Molybdenum Co.) (Polytetrafluoroethylene) Lubron L-542.0 parts (manufactured by Daikin Industry Co.) (Graphite) ACP 1000 2.0 parts (manufactured by Nippon Graphite Industry Co.) (Isocyanate curi~g agent) Coronate HL2.6 parts Curing conditions: 80C - 30 min.
Comparative Example 3) (corresponding to Example 3 in Japanese Patent Laid-Open Sho 55-15~73) KM-765 (Emulsion with 20% silicone content) 45 parts (manu~actured by Juetsu Chemical Co.) C-PM-4F (catalyst, manufactured by Juetsu Chemical Co.) 4.5 parts Molybdenum disulfide (4.5 / m average grain size) 4.0 parts Water 52.0 parts Curing condition: After leaving at a room temperature for 2 7 ~
10 min, a cured laYer was obtained at 150C - 10 min (Comparative Example 4) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 100 parts (manufactured by Dainippon Ink Chemical Industry Co.) (Isocyanate curing agent) Barnock DN980 24 parts (manufactured by Dainippon Ink Chemical Industry Co.) Curing condition: 80C - 10 min.
(Example 1) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 26 parts (manufactured by Dainippon Ink Chemical Industry Co.) (Molybdenum disulfide) Technical grade 30 parts (manufactured by Climax Molybdenum Co.) (Polytetrafluoro ethylene) Lubron L-5 42 parts (manufactured by Daikin Industry Co.~
(Graphite) ACP 1000 2 parts (manufactured by Nippon Graphite Industry Co.) (Isocyanate curing agent) Barnock DN980 6.2 parts (Dainippon Ink Chemical Industry Co.) Curing condition: 80C - 10 min.
2 7 ~
(Example 2) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 28 parts (manu-factured by Dainippon Ink Chemical Industry Co.) (Molybdenum disulfide) Technical grade10 parts (manufactured by Climax Molybdenum Co.) (Polytetrafluoro ethylene) Lubron L-560 parts (manufactured by Daikin Industry Co.) (Graphite) ACP 1000 2 parts (manufactured by Nippon Graphite Industry Co.) (Isocyanate curing agent) Barnock DN9806.7 parts (Dainippon Ink Chemical Industry Co.) Curing condition: 80C - 10 min.
(Example 3) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 28 parts (manufactured by Dainippon Ink Chemical Industry Co.) (Molybdenum disulfide) Technical grade47 parts (manufactured by Climax Molybdenum Co.) (Polytetrafluoro ethylene) Lubron L-523 parts (manufactured by Daikin Industry Co.) (Graphite) ACP 1000 2 parts (manufactured by Nippon Graphite Industry Co.) 2~7~27~
(Isocyanate curing agent) Barnock DN9806.7 parts (Dainippon Ink Chemical Industry Co.) Curing condition: 80C - 10 min.
(Example 4) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 49 parts (manufactured by Dainippon Ink Chemical Industry Co.) (Molybdenum disulfide) Technical grade 39 parts (Polytetrafluoro ethylene) Lubron L-5 10 parts (Graphite) ACP 1000 2 parts (Isocyanate curing agent) Barnock DN9806.7 parts Curing condition: 80C - 10 min.
(Example 5) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 49 parts (Molybdenum disulfide) Technical grade 47 parts (Polytetrafluoro ethylene) Lubron L-5 2.5 parts (Graphite) ACP 1000 1.5 parts (Isocyanate curing agent) Barnock DN98012.0 parts Curing condition: 80C - 10 min.
(Example 6) (Fluoro-olefin vinyl ether vinyl ester copolymer) v Fluonate K702 49 parts ~Molybdenum disulfide) Technical grade49 parts (Graphite) ACP 1000 2 parts (Isocyanate curing agent) Barnock DN98012 parts Curing condition: 80C - 10 min.
(Example 7) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate ~702 39 parts (Molybdenum disulfide) Technical grade59 parts ~Graphite) ACP 1000 2 parts (Isocyanate curing agent) Barnock DN9809.4 parts Curing condition: 80C - 10 min.
(Example 8) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 28 par~s (Molybdenum disulfide) Technical grade70 parts (Graphite) ACP 1000 2 parts ~Isocyanate curin~ agent) Barnock DN980 6.7 parts Curing condition: 80C - 10 min.
(Example 9) (Fluoro-olefin vinyl ether vinyl ester copolymer) Fluonate K702 20 parts 2~7~278 (Mol~bdenum disulfide) Technical grade 78 parts (Graphite) ACP 1000 2 parts (Isocyanate curing agent) Barnock DN980 4.8 parts Curing condition: 80C - 10 min.
.
0 ~ o ~7~2~
X o. o ~
~ _ ~o o X o o C~
E ~_ ~ _1 O
X OO
a O~ O __ : ~ a~ ~ ' o--~ .. O
E ~ O O O
'~ '~ O ~D O--Dx o o o E~ .1 o ~ o ~ E d' C~ C~O O
x o o CL E ~r) -- ~ O
O ~ OO _ O C~ ~ O
e X OO
~ ~_ ~n ~
a~ Q ~ ~ LL~ _ _ _ .
2~7~27~
As has been described above, the surface coating member according to the present invention has an extremely low friction coefficient for the coating surfaee and the durability of the eoating layer is remarkably high.
Claims (12)
1. A surface coating member in which a coating layer containing a solid lubricant and a resin matrix is formed at the surface, wherein the resin matrix comprises a fluoro-olefin vinyl ether polymer resin and/or fluoro-olefin vinyl ether vinyl ester copolymer resin.
2. A surface coating member as defined in claim 1, wherein the solid lubricant comprises one or more selected from the group consisting of sulfide, fluoro compound, graphite and silicon powder.
3. A surface coating member as defined in claim 1 or 2, wherein the blending ratio of the solid lubricant and the resin matrix is from 50 to 95 parts by weight of the solid lubricant and 50 to 5 parts by weight of the resin matrix.
4. A surface coating member as defined in claim 1 or 2, wherein the blending ratio of the solid lubricant and the resin matrix is from 70 to 90 parts by weight of the solid lubricant and from 30 to 10 parts by weight of the resin matrix.
5. A surface coating member as defined in one of claims 2 to 4, wherein the sulfide is molybdenum disulfide and/or tungsten disulfide.
6. A surface coating member as defined in one of claims 2 to 5, wherein the fluoro compound is polytetrafluoro ethylene and/or fluorinated graphite.
7. A surface coating member as defined in one of claims 2 to 6, wherein the solid lubricant comprises a sulfide, fluoro compound and graphite and the blending ratio is from 10 to 1500 parts by weight of the sulfide and 100 to 3000 parts by weight of the fluoro compound based on 100 parts by weight of graphite.
8. A surface coating member as defined in one of claims 2 to 7, wherein the average grain size of the solid lubricant is less than 10 µm.
9. A surface coating member as defined in one of claims 2 to 7, wherein the average grain size of the solid lubricant is less than 5 µm.
10. A surface coating member as defined in one of claims 2 to 7, wherein the average grain size of the solid lubricant is less than 3 µm.
11. A surface coating member as defined in one of claims 1 to 10, wherein the surface coating member is a wiper blade rubber.
12. A surface coating member as defined in one of claims 1 to 10, wherein the surface coating member is a seal packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2070278 CA2070278A1 (en) | 1991-04-22 | 1991-04-22 | Surface coating member |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1991/000533 WO1992018560A1 (en) | 1991-04-22 | 1991-04-22 | Surface-coated member |
| CA 2070278 CA2070278A1 (en) | 1991-04-22 | 1991-04-22 | Surface coating member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2070278A1 true CA2070278A1 (en) | 1992-10-23 |
Family
ID=25675182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2070278 Abandoned CA2070278A1 (en) | 1991-04-22 | 1991-04-22 | Surface coating member |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2070278A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008089572A1 (en) * | 2007-01-26 | 2008-07-31 | Kelsan Technologies Corp. | Solid stick compositions comprising vinyl ester |
| US8450254B2 (en) | 2005-02-14 | 2013-05-28 | L.B. Foster Rail Technologies, Corp. | Solid stick compositions comprising thermosetting plastic |
-
1991
- 1991-04-22 CA CA 2070278 patent/CA2070278A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8450254B2 (en) | 2005-02-14 | 2013-05-28 | L.B. Foster Rail Technologies, Corp. | Solid stick compositions comprising thermosetting plastic |
| WO2008089572A1 (en) * | 2007-01-26 | 2008-07-31 | Kelsan Technologies Corp. | Solid stick compositions comprising vinyl ester |
| US8445416B2 (en) | 2007-01-26 | 2013-05-21 | L.B. Foster Rail Technologies, Corp. | Solid stick compositions comprising vinyl ester |
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| Date | Code | Title | Description |
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| FZDE | Dead |