Silicone rubber composition, fixing member, fixing roller, and manufacturing method of fixing member
A silicone rubber composition and a technology for rubber parts, which are applied in the direction of electric recording process applying charge pattern, equipment and instrument of electric recording process applying electric charge pattern, etc., can solve problems such as reduction of rubber elasticity and durability.
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[0063] The silicone rubber composition of the present invention is a silicone rubber composition used for forming a rubber member of a fixing member having a rubber member on the surface used in an electrophotographic image forming apparatus, and is characterized in that it is subjected to a test performed under predetermined conditions. In the measurement by air chromatography, the cumulative value of the amount of low-molecular components with a retention time of 10 minutes to 32 minutes is less than 1.5, and the cumulative value of the amount of high-molecular components with a retention time of 32 minutes to 37 minutes is more than 2.2. This feature is a technical feature common to or corresponding to the following embodiments.
[0064] As an embodiment of the present invention, preferably, the cumulative value of the low molecular weight component of the silicone rubber composition is below 1.3, and the cumulative value of the high molecular weight component of the silicon...
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