Magnetic alignment and patterning of cellulose fibers
Magnetic alignment and patterning of cellulose fibers
复制标题
纤维素纤维的磁排列和图案化
DOI：
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发表时间：
2008
影响因子：
5.5
通讯作者：
Tsunehisa Kimura
中科院分区：
文献类型：
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作者：
F. Kimura;Tsunehisa Kimura
摘要报道了磁场下纤维素纤维的比对和模式。静态磁场和旋转磁场用于对齐纤维素纤维，尺寸从毫米到纳米尺寸。毫米级的纤维素纤维是为造纸制备的，而较小的纤维纤维通过较大的酸水解进行了磁性比对制备的少量纤维到纳米尺寸。在旋转场下，实现了纤维的单轴对准。通过用作矩阵的紫外线策略前体的光聚合成功固定了对齐。通过纳米纤维的水性悬浮液制备单域手性列膜。使用插入均匀磁场中的场调节器，同时进行了对齐和模式。
Abstract The alignment and patterning of cellulose fibers under magnetic fields are reported. Static and rotating magnetic fields were used to align cellulose fibers with sizes ranging from millimeter to nanometer sizes. Cellulose fibers of the millimeter order, which were prepared for papermaking, and much smaller fibers with micrometer to nanometer sizes prepared by the acid hydrolysis of larger ones underwent magnetic alignment. Under a rotating field, a uniaxial alignment of fibers was achieved. The alignment was successfully fixed by the photopolymerization of a UV-curable resin precursor used as matrix. A monodomain chiral nematic film was prepared from an aqueous suspension of nanofibers. Using a field modulator inserted in a homogeneous magnetic field, simultaneous alignment and patterning were achieved.