【摘要】 芳纶Ⅱ(PPTA)是采用干-湿法液晶纺丝成形的.这种纤维会产生皮芯结构.本文着重对皮芯结构的研究来探讨不同工艺条件下,皮层含量的变化对纤维强度和回潮率产生的影响. 研究表明,不同的工艺条件对皮层含量有一定的影响,其中浆液浓度影响尤为显著.更多还原

【Abstract】 PPTA fibre is formed in a dry-wet process of liquid crystal spinning, the fibre so obtained has skin-core structure. This paper, puts stress on the structure in order to study skin content change and, its influence on fibre strength and moisture under different process. Study proves that all these technological parameters to skin content exhibit different degrees of influence and that the constituent of spinning dope has much obvious influence.更多还原