聚乳酸切片的纺丝工艺研究

Spinning process study of PLA chip

以聚乳酸切片为原料,通过熔融纺丝—拉伸两步法制得聚乳酸纤维,研究纺丝温度、纺丝速度、拉伸倍数对聚乳酸纤维性能的影响。结果表明,聚乳酸有良好的成纤能力,纺丝速度、纺丝温度的变化对聚乳酸纤维的相对分子质量均有显著影响。

PLA filaments were made from PLA chips by melt-spinning and then drawing two step method. The effects of spinning temperature, spinning rate and drawing ratio on PLA filament performance were investigated. The results show that the PLA has good fiber-forming behavior, The changes of the spinning temperature and rate in melt spinning have obvious effect on the relative molecular mass of PLA filaments.