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There is provided a resin composition for a machinable liner of a sliding member. An ultraviolet curable resin composition for a self-lubricating liner contains a (meth)acrylate compound having an isocyanuric acid ring represented by the following formula and PTFE as a solid lubricant. In the formul

There is provided a resin composition for a machinable liner of a sliding member. An ultraviolet curable resin composition for a self-lubricating liner contains a (meth)acrylate compound having an isocyanuric acid ring represented by the following formula and PTFE as a solid lubricant. In the formula (1), X is a group which contains an acryloyl group and is composed only of C, H, and O. Y and Z are groups each composed only of C, H, and O. PTFE is contained in an amount of 10 to 50% by weight with respect to a total amount of the ultraviolet curable resin composition. The ultraviolet curable resin composition is suitable for a self-lubricating liner 24 of a spherical bearing 20 having an outer race 22 and an inner race 26.

대표청구항 ▼

1. A sliding member comprising a self-lubricating liner that is formed on a sliding surface of the sliding member and is made of an ultraviolet curable resin composition comprising: a polytetrafluoroethylene resin as a solid lubricant; anda (meth)acrylate compound having an isocyanuric acid ring rep

1. A sliding member comprising a self-lubricating liner that is formed on a sliding surface of the sliding member and is made of an ultraviolet curable resin composition comprising: a polytetrafluoroethylene resin as a solid lubricant; anda (meth)acrylate compound having an isocyanuric acid ring represented by formula (1): where: X is a group that contains an acryloyl group and is composed only of C, H, and O; andY and Z are groups each composed of only C, H, and O;wherein the (meth)acrylate compound having the isocyanuric acid ring is present in an amount of 20% by weight to 90% by weight and the polytetrafluoroethylene resin is present in an amount of 10% by weight to 50% by weight with respect to a total amount of the ultraviolet curable resin composition. 2. The sliding member according to claim 1, wherein the sliding member is a sliding bearing. 3. The sliding member according to claim 2, wherein the sliding bearing is a spherical bearing. 4. The sliding member according to claim 1, wherein the sliding member is a bolt comprising a head portion, a shaft portion, a thread portion, and the self-lubricating liner formed on an outer circumferential surface of the shaft portion. 5. A manufacturing method for producing a sliding member, comprising: applying an ultraviolet curable resin composition on a sliding surface of the sliding member; andcuring the ultraviolet curable resin composition by irradiation with ultraviolet rays to form a self-lubricating liner,wherein:the ultraviolet curable resin composition comprises: a polytetrafluoroethylene resin as a solid lubricant; anda (meth)acrylate compound having an isocyanuric acid ring represented by formula (1): where: X is a group that contains an acryloyl group and is composed only of C, H, and O; andY and Z are groups each composed only of C, H, and O; andthe (meth)acrylate compound having the isocyanuric acid ring is present in an amount of 20% by weight to 90% by weight and the polytetrafluoroethylene resin is present in an amount of 10% by weight to 50% by weight with respect to a total amount of the ultraviolet curable resin composition. 6. The manufacturing method for producing the sliding member according to claim 5, further comprising performing cutting or grinding of the self-lubricating liner to make the self-lubricating liner have a desired size. 7. The manufacturing method for producing the sliding member according to claim 5, wherein the ultraviolet curable resin composition contains a thermosetting agent;the sliding member is a spherical bearing including an outer race member that has a concave first bearing surface and an inner race member that has a convex second bearing surface slidably movable on the first bearing surface; andthe self-lubricating liner is formed by: applying the ultraviolet curable resin composition on the first bearing surface or the second bearing surface as a sliding surface;curing the ultraviolet curable resin composition applied on the first bearing surface or the second bearing surface until the ultraviolet curable resin composition is semi-cured by irradiation with the ultraviolet rays;inserting the inner race member into the outer race member after the ultraviolet curable resin composition is semi-cured;pressing the outer race member to cause plastic deformation so as to make the outer race member follow the convex second bearing surface of the inner race member; andcuring the ultraviolet curable resin composition completely by heat after the plastic deformation. 8. The manufacturing method for producing the sliding member according to claim 5, wherein the ultraviolet curable resin composition is applied on the sliding surface without roughening the sliding surface. 9. The sliding member according to claim 1, wherein the acrylate compound having the isocyanuric acid ring is selected from the group consisting of di-(2-acryloxyethyl) isocyanurate, tris-(2-acryloxyethyl) isocyanurate, ε-caprolactone modified tris-(2-acryloxyethyl) isocyanurate, and a mixture of the di-(2-acryloxyethyl) isocyanurate and the tris-(2-acryloxyethyl) isocyanurate. 10. The sliding member according to claim 1, wherein the acrylate compound having the isocyanuric acid ring is a mixture of di-(2-acryloxyethyl) isocyanurate and tris(2-acryloxyethyl) isocyanurate, or ε-caprolactone modified tris-(2-acryloxyethyl) isocyanurate. 11. The sliding member according to claim 1, wherein the ultraviolet curable resin composition further comprises melamine cyanurate in an amount of 30% by weight or less with respect to the total amount of the ultraviolet curable resin composition. 12. The sliding member according to claim 1, wherein the polytetrafluoroethylene resin is in a powder form having an average particle diameter ranging from 75 μm to 180 μm. 13. The sliding member according to claim 1, wherein the polytetrafluoroethylene resin is a polytetrafluoroethylene resin surface-treated by epoxy modified acrylate. 14. The sliding member according to claim 1, wherein the polytetrafluoroethylene resin is present in an amount of 30% by weight to 50% by weight with respect to the total amount of the ultraviolet curable resin composition. 15. The sliding member according to claim 1, wherein the ultraviolet curable resin composition further comprises a thermosetting agent. 16. The sliding member according to claim 1, wherein the ultraviolet curable resin composition further comprises at least one selected from the group consisting of bisphenol A-type epoxy acrylate, hydroxyethyl(meth)acrylate, isobornyl (meth)acrylate, pentaerythritol triacrylate, and dipentaerythritol hexa(meth)acrylate. 17. The sliding member according to claim 1, wherein the ultraviolet curable resin composition further comprises urethane acrylate. 18. The sliding member according to claim 1, wherein the ultraviolet curable resin composition further comprises ethylene glycol di(meth)acrylate. 19. The sliding member according to claim 1, wherein the ultraviolet curable resin composition further comprises at least one selected from the group consisting of fumed silica and glass fiber.