| 摘要 |
PURPOSE:To obtain an imidosilicon polymer article improved in heat distortion resistance, solvent resistance and cut-through resistance at high temperature by molding an imidosilicon polymer and crosslinking it by irradiation with electron beams. CONSTITUTION:The purpose article is obtained by molding an imidosilicon polymer into any desired shape and crosslinking it by irradiating with electron beams optionally in the presence of a crosslinking aid having at least two ethylenically unsaturated functional groups. The dose of electron beams used in the crosslinking is generally in the range of 5-50Mrad, especially 10-30Mrad. When the crosslinking is performed in the presence of a crosslinking aid, the crosslinking density can be improved and the improving effect is enhanced. Examples of the crosslinking aids include ones having at least two ethylenically unsaturated groups, particularly desirably trimethylolpropane trimethacrylate and triallyl isocyanurate. |
