| 摘要 |
<p>A flat aromatic polyamide fiber which is suitable for producing a twisted yarn with a high strength efficiency and has a fiber section flatness of 1.5 to 5, a fineness of 1 to less than 50 d, a tensile strength of 18 g/d, a breaking elongation of 3.5% or above, and a Young's modulus of 400 g/d or above.</p> |
