Cengiz-Callioglu Funda, Jirsak Oldrich, Dayik Mehmet
Engineering Faculty Textile Engineering Department, Süleyman Demirel University, Isparta 32260, Turkey.
J Nanosci Nanotechnol. 2013 Jul;13(7):4727-35. doi: 10.1166/jnn.2013.7190.
This paper discusses the effects of 1,1,2,2 tetrachlorethylen (TCE) non-solvent addition on the independent (electrical conductivity, dielectric constant, surface tension and the theological properties of the solution etc.) and dependent parameters (number of Taylor cones per square meter (NTC/m2), spinning performance for one Taylor cone (SP/TC), total spinning performance (SP), fiber properties such as diameter, diameter uniformity, non-fibrous area) in roller electrospinning of polyurethane (PU). The same process parameters (voltage, distance of the electrodes, humidity, etc.) were applied for all solutions during the spinning process. According to the results, the effect of TCE non-solvent concentration on the dielectric constant, surface tension, rheological properties of the solution and also spinning performance was important statistically. Beside these results, TCE non-solvent concentration effects quality of fiber and nano web structure. Generally high fiber density, low non-fibrous percentage and uniform nanofibers were obtained from fiber morphology analyses.
本文探讨了添加1,1,2,2-四氯乙烯（TCE）非溶剂对聚氨酯（PU）滚筒静电纺丝中独立参数（电导率、介电常数、表面张力和溶液的流变学性质等）和相关参数（每平方米泰勒锥数量（NTC/m²）、单个泰勒锥的纺丝性能（SP/TC）、总纺丝性能（SP）、纤维性能如直径、直径均匀性、非纤维区域）的影响。在纺丝过程中，所有溶液均采用相同的工艺参数（电压、电极距离、湿度等）。结果表明，TCE非溶剂浓度对溶液的介电常数、表面张力、流变学性质以及纺丝性能具有重要的统计学意义。除此之外，TCE非溶剂浓度还影响纤维质量和纳米纤维网结构。通过纤维形态分析，通常可获得高纤维密度、低非纤维百分比和均匀的纳米纤维。
