Controlled release drug core with rod-shape can be manufactured by injection process which has the feature of high production efficiency and high precision for drug core.
结果：①采用挤出成型法制备棒状缓释药芯具有生产效率高药芯精度符合要求的特点。
2
The observation by means of SEM show that the state in which the rigid chain PAM in nylon — 6 is rodshape crystal which use chain or chain — bunch as core, and nylon —6 as coating.