纳米SiO_2改性聚酯纺高强低伸丝的工艺研究

Process Study of High Tenacity and Low Elongation PET Fiber Modified by Nano SiO_2

从原料指标对纳米SiO2改性聚酯和普通聚酯进行对比分析,发现改性聚酯的冷结晶温度、热结晶温度及结晶度等与普通聚酯存在较大差异,因此在纺制改性聚酯高强低伸工业丝时工艺应与普通聚酯有所区别。试验结果表明:通过对改性聚酯纺丝的工艺研究,采用低速多级拉伸及充分热定形,可以得到品质优异的高强低伸工业丝。

PET and SiO2 modified PET in cold crystallization temperature, hot crystallization temperature, and crystallinity. The different spinning technique was used for modified PET when producing industrial fiber with high tenacity and low elongation. The test result showed that multiple step draw in low speed and good heat setting were adopted for high performance industrial yarn from modified PET.