聚甲醛电纺纤维表面孔结构的控制

Control of the Porous Surface Morphology of Polyoxymethylene Electrospun Fibers

研究了环境相对湿度、温度、溶液浓度、纺丝电压和接收距离对聚甲醛(POM)电纺纤维表面孔形貌的影响.结果表明,空气中一定含量的水对孔的形成至关重要;纺丝液浓度对孔的大小有影响.并对POM纤维表面成孔的可能机理进行了分析.

The control of surface morphology of polyoxymethylene（POM） nanofibers electrospun from hexaf-luoroisopropanol was investigated by varying relative humidity,temperature,solution concentration,electrical voltage and collecting distance.It is found that environmental conditions are very important for surface pore formation.The pores are obvious only when the fibers are produced beyond a certain relative humidity and certain temperature.Solution concentration affects the pore size,while instrumental parameters do not have ob-vious influence on pore formation.Possible mechanism for pore formation was discussed.