| 摘要 |
A method for the production of melt-spun fibers comprising polyethylene terephthalate as a fiber-forming polymer, through polycondensation or melting of the fiber-forming polymer forming a melt and subsequently melt spinning, comprises mixing 0.1-4 wt %, relative to the fiber-forming polymer, of polymethyl methacrylate with the fiber-forming polymer before the melt spinning and dispersing the polymethyl methacrylate in the fiber-forming polymer to form unoriented melt fibers. During the melt spinning, the spinning speed of the fibers is set at up to 8000 m/min, whereby through the inclusion in the unoriented melt fibers, extruded from a sincerest, rod-shaped inclusions of the polymethyl methacrylate with a lateral particle size of less than 800 nm are obtained.
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