Bacterial cellulose: the ultimate nano-scalar cellulose morphology for the production of high-strength composites
Bacterial cellulose: the ultimate nano-scalar cellulose morphology for the production of high-strength composites
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DOI：
10.1007/s00339-004-2932-3
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发表时间：
2005-01-01
影响因子：
2.7
通讯作者：
Yano, H
中科院分区：
文献类型：
--
作者：
Nakagaito, AN;Iwamoto, S;Yano, H
用细菌纤维素（BC）片浸渍酚醛树脂，并在100 MPa下压缩，生产高强度复合材料。通过利用这种由细菌合成的独特材料，可以改善先前报道的基于植物来源的原纤化牛皮纸浆的高强度复合材料的机械性能。BC基复合材料更强，特别是杨氏模量明显更高，达到28 GPa，而原纤化纸浆复合材料为19 GPa。该上级模量值归因于通过压缩BC薄膜而在平面内取向的纤维素元素的均匀、连续和直的纳米尺度网络。
High-strength composites were produced using bacterial cellulose (BC) sheets impregnated with phenolic resin and compressed at 100 MPa. By utilizing this unique material synthesized by bacteria, it was possible to improve the mechanical properties over the previously reported high-strength composites based on fibrillated kraft pulp of plant origin. BC-based composites were stronger, and in particular the Young's modulus was significantly higher, attaining 28 GPa versus 19 GPa of fibrillated pulp composites. The superior modulus value was attributed to the uniform, continuous, and straight nano-scalar network of cellulosic elements oriented in-plane via the compression of BC pellicles.