| 摘要 |
PURPOSE:The titled carbon fiber bundle that has a specific saturated water content, a strand strength and elasticity, thus being suitable for production of reinforced tire cords to which RFL is applied, reinforced paper and reinforced cement, because it has high affinity to water and high strength and elasticity. CONSTITUTION:The objective carbon fiber bundle has a carbon content of 70-90wt%, a saturated water content of at least 0.5wt% at 80% RH and 20 deg.C, a strand strength of 250kgf/mm<2> and a strand elasticity of more than 18,000kgf/ mm<2>. The fiber bundle is preferably produced from acrylic fibers containing more than 95wt% acrylonitrile.
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