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首页> 外文会议>第35届纺织科学国际学术研讨会论文集 >Nanofibers Produced by a Melt-Electrospinning System with a Laser Melting Device
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Nanofibers Produced by a Melt-Electrospinning System with a Laser Melting Device

机译：带有激光熔融装置的熔融电纺丝系统生产的纳米纤维

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A new melt-electrospinning system equipped with a CO2-laser melting device was developed. Rodlike samples were prepared from poly(lactide) pellets(PLA) and polyCethylene-co-vinyl alcohol) (EVAL) pellets, then fibers were produced from these rodlike samples using the new system. The effects of producing conditions on the fiber diameter were investigated. Furthermore, the physical properties of the fibers were investigated. The following conclusions were reached: (i) fibers having an average fiber diameter smaller than 1μm could be obtained from these PLA and EVAL rods using the system developed in this work; (ii) the average diameter of PLA fibers could be decreased with increased laser output power, but the physical properties of the fibers such as the melting point and the molecular weight were decreased markedly; (iii) the diameter of EVAL fibers decreased with decreasing ethylene content, (iv) laser heating did not decrease markedly the melting point of EVAL and the average viscometric degree of polymerization of EVAL, and (v) the EVAL fibers exhibited anisotropic crystal orientation.
机译：开发了一种新型的带有CO2激光熔化设备的熔体静电纺丝系统。由聚（丙交酯）粒料（PLA）和聚乙烯-乙烯醇共聚物（EVAL）粒料制备棒状样品，然后使用新系统由这些棒状样品生产纤维。研究了生产条件对纤维直径的影响。此外，研究了纤维的物理性质。得出以下结论：（i）使用这项工作开发的系统，可以从这些PLA和EVAL棒中获得平均纤维直径小于1μm的纤维; （ii）PLA纤维的平均直径可以随着激光输出功率的增加而减小，但是纤维的物理性能例如熔点和分子量显着降低; （iii）EVAL纤维的直径随乙烯含量的降低而减小，（iv）激光加热并未显着降低EVAL的熔点和EVAL的平均粘度，并且（v）EVAL纤维表现出各向异性的晶体取向。

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