熔纺中喷丝孔结构对中空酚醛纤维截面形貌的影响  

Effect of Orifice Structure on Cross Section Morphologies of Hollow Phenolic Fiber by Melt-Spinning

作　　者：张东卿[1] 史景利[1] 郭全贵[1] 宋燕[1] 刘朗[1] 

机构地区：[1]中国科学院山西煤炭化学研究所炭材料重点实验室

出　　处：《宇航材料工艺》2008年第4期35-39,共5页Aerospace Materials & Technology

摘　　要：设计了几种不同喷丝孔结构的圆弧狭缝式喷丝板,用于酚醛树脂的熔融纺丝,对纺出纤维的截面形貌进行研究。结果表明,喷丝孔的孔形、圆弧狭缝宽度、圆弧缺口宽度和长径比等结构参数对纤维截面形貌有着重要影响,在适当熔纺条件下,只有使用结构尺寸在一定范围的喷丝板才能得到中空酚醛纤维,否则,就会得到C形和实心截面形貌的酚醛纤维。The Arc-shaped spinnerets with different orifice structure were prepared,and the melt-spinning of phenolic resin using these spinnerets was studied.The results show that the orifice structure has great effects on the cross section morphologies of hollow phenolic fibers.Hollow-shaped,C-shaped and round-shaped fibers were obtained by using different orifice structure spinnerets in the proper spinning conditions.

关 键 词：圆弧狭缝式喷丝板 喷丝孔结构 纤维截面形貌 中空酚醛纤维 

分 类 号：V250.2[一般工业技术—材料科学与工程]