Biologically Inspired Hierarchical Design of Nanocomposites Based on Poly(ethylene oxide) and Cellulose Nanofibers
Biologically Inspired Hierarchical Design of Nanocomposites Based on Poly(ethylene oxide) and Cellulose Nanofibers
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DOI：
10.1002/marc.201100183
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发表时间：
2011-09-01
影响因子：
4.6
通讯作者：
Supaphol, Pitt
中科院分区：
文献类型：
--
作者：
Changsarn, Sutheerat;Mendez, James D.;Supaphol, Pitt
尝试创建分层结构的，单轴取向的纳米复合材料，包括纤维素纳米晶须（CNW），这保证各向异性的机械性能，是非常罕见的。在这里，我们报告的制造单轴取向阵列的微纤维的基础上聚（环氧乙烷）（PEO）和碳纳米管通过静电纺丝。与纯PEO纤维相比，在纤维内掺入CNW增加了PEO/CNW纳米复合纤维的阵列沿着纤维轴的储能模量（E '）。通过扫描电子显微镜和透射电子显微镜验证了在平行于纤维轴的方向上在每个纺成PEO/CNW纳米复合纤维内成功掺入CNW。
Attempts to create hierarchically structured, uniaxially oriented nanocomposites comprising cellulose nanowhiskers (CNWs), which promise anisotropic mechanical properties, are exceedingly rare. We report here the fabrication of uniaxially-oriented arrays of microfibers based on poly(ethylene oxide) (PEO) and CNWs by electrospinning. Compared with the neat PEO fibers, the incorporation of CNWs within the fibers increased the storage modulus (E') of arrays along the fiber axis of the PEO/CNW nanocomposite fibers. Successful incorporation of the CNWs within each of the as-spun PEO/CNW nanocomposite fibers in the direction parallel to the fiber axis was verified by both scanning and transmission electron microscopy.