本研究混摻石墨烯(graphen)於12 wt% iPS/o-DCB溶液中進行電紡，可得到含graphene之奈米電紡纖維，隨著graphene在纖維內所佔比例提高，纖維直徑會上升，當graphene含量大於3 wt%時，纖維直徑有明顯地下降，由SEM與TEM可知部分graphene不易捲曲於纖維內且會裸露在纖維外。

以DSC分析iPS/graphene複合纖維之熱性質，發現纖維內的graphene會抑制iPS結晶，但纖維膜經升溫再降溫形成複材後，發現複材內的graphene會誘發iPS結晶。導電度量測結果顯示iPS/graphene複合纖維之導電percolation threshold為2.50 vol%。

預期以sPS/graphene、aPS溶液分別作為內管與外管溶液，進行電紡製備芯鞘型複合纖維，但卻發現無法藉由調整內外溶液流量使內管sPS溶液進入外管aPS溶液於電紡形成的jet中，最後於cone內累積過多而使cone滴落。

以AFM掃描不同電紡纖維，以了解其表面形態，PET、PBT、PTT電紡纖維表面是由顆粒所組成，其中PBT、PTT電紡纖維經熱處理後，其顆粒結構更加明顯且顆粒高度上升；iPS、sPS電紡纖維表面有垂直纖維方向的條狀結構，aPS電紡纖維表面則有沿纖維方向排列的孔洞結構；Nylon 6電紡纖維表面是由大小不一的顆粒所組成。

The iPS/graphene as-spun fibers were prepared by blending graphene into 12 wt% iPS/o-DCB solutions. Fiber diameter(df) were increased with increasing the content of graphene in the solution and decreased obviously when the content of graphene was larger than 3 wt%. SEM and TEM results showed part of graphene was included in iPS fibers but protuberated.

The 1st heating of DSC results showed the addition of graphene could reduce the crystallizability of iPS within the fibers. And the 2nd heating of results showed the addition of graphene could improve the crystallizability of iPS within the composite materials. From the electrical conductivity measurement, the percolation threshold of iPS/graphene composite fibers is 2.50 vol%.

We used sPS/graphene and aPS solution as the inner and outer solution, and tried to get core/shell fibers via coaxial electrospinning. But we could not adjust the innert and outer flow rate to make sPS solution get into the jet formed by electrospinning aPS solution. Finally, accumulated sPS solution made cone drop.

From the AFM images, the surface of as-spun PET, PBT and PTT fibers were composed of protruding spots. The spots of PBT and PTT fibers were found more obvious and higher after heat treatment. The surface of as-spun iPS and sPS fibers were regular strips perpendicular to the fiber axis. And as-spun aPS fiber showed the holes arranging along the fiber axis. Electrospun Nylon 6 fiber showed the spots which were not of uniform size.

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