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首页> 外文会议>Materials Research Society Symposium on Structure, Processing, and Properties of Polymer Nanofibers for Emerging Technologies >Characterization of Fibers Electrospun from Organometallic Tin Precursors in a Polymer Binder
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Characterization of Fibers Electrospun from Organometallic Tin Precursors in a Polymer Binder

机译：聚合物粘合剂中有机金属锡前体的纤维Electurpum的表征

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Electrospinning has been thought of as an effective, low cost technique for producing nanofibers for use in gas sensor applications with nanofibers of tin oxide showing particular promise in this area. Critical to the success of tin oxide in these applications are nanowires with a rutile phase structure and well defined current-voltage characteristics which requires controlled fiber diameters. This paper reports on the characterization of the pre and post sintered fibers deposited via electrospinning of two different tin precursor chemicals, dimethyl dineodecanoate tin and dimethyl dichloro tin, both spun within a polyethylene oxide / chloroform binder system. Both tin precursor systems were evaluated at different concentration levels to investigate morphological changes due to concentration. Mats of fibers were spun on silicon wafers and sintered at 600°C for 2 hours. Morphology was characterized by optical microscope while chemical composition was determined via Raman spectrometry. Fibers of dimethyl dineodecanoate tin were found be ～30μm in diameter and to have considerable component separation upon deposition. After sintering, SnO{sub}2 islands were found but there was no fiber appearance. Fibers of dimethyl dichloro tin were found to be ～10μm in diameter and lacked the component separation seen in the other tin precursor system with some SnO{sub}2 domains found directly inline with initial fiber deposition. Comparison of results from both systems shows that the interaction of the polymer and tin precursor is of paramount importance for development of micro- or nanosized ceramic wires deposited by electrospinning.
机译：静电纺丝已被认为是生产纳米纤维的有效，低成本的技术，用于使用氧化锡的纳米纤维的气体传感器应用，显示在该地区的特定承诺。这些应用中氧化锡的成功至关重要是具有金红石相结构的纳米线和需要良好的限定电流 - 电压特性，其需要控制的纤维直径。本文报告了通过两种不同锡前体化学品，二甲基二甲烷锡和二甲基二氯锡的静电纺丝沉积的前后烧结纤维的表征，两者在聚环氧丙烷/氯仿粘合剂体系内旋转。在不同的浓度水平下评估锡前体系统，以研究由于浓度为引起的形态学变化。纤维垫在硅晶片上旋转并在600℃下烧结2小时。通过光学显微镜表征形态，而通过拉曼光谱法测定化学成分。发现二甲基二甲基癸酸锡的纤维直径为约30μm，并在沉积时具有相当大的组分分离。烧结后，发现SnO {Sub} 2个岛屿，但没有光纤外观。发现二甲基二氯锡的纤维直径为约10μm，缺乏在其他锡前体系中看到的组分分离，其中一些SnO {亚} 2结构域与初始纤维沉积直接发现。两种系统的结果的比较表明，聚合物和锡前体的相互作用对于通过静电纺丝沉积的微型或纳米化陶瓷线的开发至关重要。

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