| abstract |
The present invention provides a kind of alignment state polylactic acid section bar, in axial orientation, linear array in the section bar microstructure.The section bar raw material is l-lactic acid, and specific rotatory power is 155 °~160 °；The crystallinity of the section bar is 45% 90%, is strengthened successively by embryo processed, orientation by polylactic acid raw material, quenching is prepared.Alignment state polylactic acid section bar mechanical property provided by the invention is strong, good biocompatibility. |