Reinforcing efficiency of nanocellulose in polymers
Reinforcing efficiency of nanocellulose in polymers
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DOI：
10.1016/j.reactfunctpolym.2014.08.010
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发表时间：
2014-12-01
影响因子：
5.1
通讯作者：
Oksman, Kristiina
中科院分区：
文献类型：
--
作者：
Aitomaki, Yvonne;Oksman, Kristiina
从可再生资源中提取的纳米纤维素是许多聚合物的一种有前景的增强材料，并且是一种具有强纤维间氢键的材料，具有超细纤维复合材料中未见的效果。提出了一种基于估计纳米纤维素增强效率来比较不同纳米纤维素复合材料的工具。增强效率因子是使用已建立的微机械模型根据各种纳米纤维素复合材料的弹性模量和强度的报告值计算的。此外，对于强度，基于纳米纤维素网络内的纤维-纤维粘合强度导出了网络模型。强度结果凸显了纳米纤维素复合材料中塑性变形的重要性。模量和强度效率都表明网络强度和模量比单个成分的影响更大。在最好的情况下，纳米纤维素的增强效果超出了所有模型的预测。 (C) 2014 Elsevier B.V. 保留所有权利。
Nanocellulose extracted from renewable sources, is a promising reinforcement for many polymers and is a material where strong interfibre hydrogen bonds add effects not seen in microfiber composites. Presented is a tool for comparing different nanocellulose composites based on estimating the efficiency of nanocellulose reinforcement. A reinforcing efficiency factor is calculated from reported values of elastic modulus and strength from various nanocellulose composites using established micromechanical models. In addition, for the strength, a network model is derived based on fibre-fibre bond strength within nanocellulose networks. The strength results highlight the importance of the plastic deformation in the nanocellulose composites. Both modulus and strength efficiency show that the network strength and modulus has a greater effect than that of the individual constituents. In the best cases, nanocellulose reinforcement exceeds all model predictions. (C) 2014 Elsevier B.V. All rights reserved.