| 摘要 |
<p>Provided is a blend of fluorine-containing elastomers comprising 5-60 wt% of a high-molecular-weight fluorine-containing elastomer having a number average molecular weight Mn (liquid chromatography, a tetrahydrofuran developing solvent, a polymer concentration of 0.5 wt%, a measurement temperature of 35°C) of 3,000,000 or more, 20-80 wt% of a middle-molecular-weight fluorine-containing elastomer having an Mn of 100,000-1,000,000, and 10-50 wt% of a low-molecular-weight fluorine-containing elastomer having a Mn of 7,000-13,000. The blend of fluorine-containing elastomers achieves low hardness and low modulus, as well as an improved rolling processability.</p> |
