| 摘要 |
<p>The invention pertains to a method for making a flexible fibrous continuous tape containing 60 to 98 wt% fiber based on the weight of the tape, from multifilament yarn selected from aramid, glass, aromatic polyester, and rigid rod polymer, comprising the steps: a1 ) spreading the filaments of the yarn to obtain a filament layer having a cross sectional aspect ratio (w/h) of 2 to 2000; and b1 ) treating the spread filaments with a curable resin, or a liquid thermoplastic resin or wax; or a2) treating the yarn with the curable resin, or the liquid thermoplastic resin or wax; and b2) spreading the filaments of the yarn to obtain a filament layer having a cross sectional aspect ratio (w/h) of 2 to 2000; followed by c) fixating the filaments by curing or solidifying the resin to obtain the tape, wherein steps a1 - b1, respectively a2 - b2, and c are performed in-line. The method is suitable for making flexible tape containing 60 to 98 wt% fiber based on the weight of the tape, comprising a filament layer having a cross sectional aspect ratio (w/h) of 2 to 2000, the filaments being fixated by a cured or solidified resin. The method is also suitable for making micro-tape having a width of less than 0.5 millimeter and a cross sectional aspect ratio (w/h) 2 to 20.</p> |
