| 摘要 |
Amide solvent or amide solvent with small amount of 3 grade amine is added by inorganic salt, and solubilized. Same mol aromatic diamine and aromatic diacidchloride is added to this solution, polymerized with low temp. to give optical anisotropic liquid crystal prepolymer. This prepolymer is fed to nozzle in a vessel using gear pump, sprayed. Nozzle is rotated to draw aromatic polyamide which is extruded from nozzle in a way that centrifugal force is greater than extrusion speed and the ratio of centrifugal force to extrusion force is above at least 10 to form easily the molecular orientation. At this time the liquid crystal prepolymer is drawn. This is impregnated, thus give aromatic polyamide.
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