Silane-crosslinked rubber molded article and its manufacturing method, silane-crosslinkable rubber composition, and silane-crosslinked rubber molded article

Abstract

To provide a manufacturing method in which a silane-crosslinked rubber molding having excellent appearance characteristics and reduced permanent compression set can be obtained by injection molding, a silane-crosslinked rubber molding obtained by the manufacturing method and a silane-crosslinked rubber molded article, and a silane-crosslinkable rubber composition that is suitable for forming the silane-crosslinked rubber molding.SOLUTION: Provided are a method for manufacturing silane-crosslinked rubber molding by silane crosslinking method that comprises a step of melt-mixing an organic peroxide by 0.01 to 0.6 pts.mass, an inorganic filler by 1 to 100 pts.mass, a silane coupling agent by 1 to 15 pts.mass, and a silanol condensation catalyst for 100 pts.mass of a base rubber containing an ethylene-α-olefin copolymer rubber having a diene component amount of 4.5 to 10 mass% by 5 to 35 mass%, an ethylene-α-olefin copolymer rubber having a diene component amount of 1.0 mass% or less by 5 to 50 mass%, an ethylene resin by 12 mass% or less, a propylene resin by 5 to 15 mass%, a styrene elastomer by 10 to 35 mass%, and a mineral oil by 20 to 40 mass%, a silane-crosslinked rubber molding and molded article manufactured using the same, and a silane-crosslinkable rubber composition that is used therefor.SELECTED DRAWING: None

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