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以三氯甲烷／二甲基亚砜混合溶剂,制备不同组成聚苯胺-十二烷基苯磺酸／聚丙烯腈(PANI-DBSA／PAN)的共混溶液。对共混溶液的流变性能进行了测试,并研究了PANI-DBSA含量对共混溶液表观粘度、非牛顿指数及结构粘度指数的关系。结果表明:PANI-DBSA含量对共混溶液的表观粘度影响比较复杂;溶液的非牛顿指数随着PANI-DBSA的增加而减小;当PANI-DBSA的质量分数高于5％时,共混溶液可纺性较差。
A mixed solution of polyaniline-dodecylbenzenesulfonic acid / polyacrylonitrile (PANI-DBSA / PAN) was prepared with a mixed solvent of trichloromethane / dimethyl sulfoxide. The rheological properties of the blends were tested. The relationship between apparent viscosity, non-Newtonian index and structural viscosity index of PANI-DBSA was also studied. The results showed that the content of PANI-DBSA affected the apparent viscosity of the blend solution more complexly. The non-Newtonian index decreased with the increase of PANI-DBSA. When the mass fraction of PANI-DBSA was above 5% Solution spinnability is poor.