Mechanical response of multi-layer bacterial cellulose nanopaper reinforced polylactide laminated composites
Mechanical response of multi-layer bacterial cellulose nanopaper reinforced polylactide laminated composites
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DOI：
10.1016/j.compositesa.2017.12.025
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发表时间：
2018-04-01
影响因子：
8.7
通讯作者：
Lee, Koon-Yang
中科院分区：
文献类型：
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作者：
Hervy, Martin;Blaker, Jonny J.;Lee, Koon-Yang
在这项研究中，我们研究了多层BC纳米纸增强的聚乳酸（PLLA）的力学响应。制备由1、3、6和12片BC纳米纸组成的层压复合材料。据观察，增加BC纳米纸的数量导致所得BC纳米纸增强PLLA层压复合材料的孔隙率增加。层压复合材料的拉伸模量被发现是类似于12.5 - 13.5 GPa，不敏感的复合材料中的BC纳米纸的片数。然而，当增强BC纳米纸片的数量从1片增加到12片时，层压复合材料的拉伸强度下降了21%（从121 MPa到95 MPa）。这是由于在PLLA层压复合材料中，随着BC纳米纸片的增加，鳞片诱导的缺陷的存在和严重程度增加。(C)2018爱思唯尔有限公司版权所有
In this study, we investigated the mechanical response of polylactide (PLLA) reinforced with multiple layers of BC nanopaper. Laminated composites consisting of 1, 3, 6 and 12 sheet(s) of BC nanopaper were produced. It was observed that increasing the number of BC nanopaper led to an increase in the porosity of the resulting BC nanopaper-reinforced PLLA laminated composites. The tensile moduli of the laminated composites were found to be similar to 12.5 - 13.5 GPa, insensitive to the number of sheets of BC nanopaper in the composites. However, the tensile strength of the laminated composites decreased by 21% (from 121 MPa to 95 MPa) when the number of reinforcing BC nanopaper sheets increased from 1 to 12 sheets. This was attributed to the presence and severity of the scale-induced defects increased with increasing BC nanopaper sheets in the PLLA laminated composites. (C) 2018 Elsevier Ltd. All rights reserved.