Coating composition for lubricating coating film

A technology of lubricating coating and composition, applied in the field of manufacturing the sliding member, can solve the problems of damage to the adhesion of the substrate and the coating film, the lack of flexibility of the coating film, etc., and achieve excellent sliding properties, excellent sliding durability, The effect of excellent adhesion and following ability

CN106062105AActive Publication Date: 2016-10-26DOW CORNING TORAY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-10-26

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Abstract

To provide a coating composition for a lubricating coating film capable of forming a lubricating coating film having a high level of flexibility on surfaces of various base materials. <Resolution Means> A coating composition for a lubricating coating film including: (A) a phenolic resin, (B) an epoxy resin having an epoxy equivalent weight of 600 to 4000, and (C) at least one type of solid lubricant; and having a weight ratio of component (A) to the total weight of component (A) and component (B) of at least 50 weight %.
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Description

technical field

[0001] The present invention relates to coating compositions for lubricating coating films. Furthermore, the present invention relates to a lubricating coating film obtained by curing a coating composition for a lubricating coating film, a sliding member provided with a lubricating coating film, and a method for manufacturing the sliding member. Background technique

[0002] As described in, for example, Japanese Unexamined Patent Application Publication No. 2013-189569, a sliding member provided with a binder containing a phenolic resin and an epoxy resin and provided with a coating film containing a solid lubricant is known .

[0003] However, in some cases, the above-mentioned coating film lacks flexibility, and in such cases, the adhesion between the substrate and the coating film may be impaired. For example, if the above-mentioned coating film is formed on the surface of a sheet-like substrate made of metal, the coating film is poor in flexibility, an...

Examples

example 1 to 13 and comparative example 1 to 5

[0161] The coating compositions for the lubricating coating film of Examples 1 to 13 and Comparative Examples 1 to 5 are shown in Table 1-1, 1-2 and Table 2 by each component shown in Table 1-1, 1-2 and the ratios in Table 2 were mixed. It should be noted that the numbers shown in Tables 1-1, 1-2 and Table 2 represent parts by weight. In addition, the solid lubricants used in the table are as follows:

[0162] - Fluororesin microparticles: polytetrafluoroethylene powder (100% by weight of dry solid content) having a median diameter of 2 to 7 micrometers as measured by a laser diffraction scattering type particle size distribution method.

[0163] - Titanium nitride microparticles: black titanium nitride powder (100% by weight dry solids content), with a median diameter of 0.8 to 1.0 micrometer, as measured by a particle size distribution method of the laser diffraction scattering type.

[0164] - Titanium oxide microparticles: white rutile type titanium oxide powder (100% by...