期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 137, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2020.106031
关键词
Aramid nanofibers; Strength and toughness; Hydrogen bonds; Covalent bonds
资金
- National Key Research and Development Plan of China [2017YFB0308300, 2017YFB0308302]
- Natural Science Basic Research Program of Shaanxi Province, China [2020JQ-722]
- Key Scientific Research Group of Shaanxi Province, China [2017-KCT-02]
- Key Research and Development Project of Zhejiang Province, China [2019C04008]
- State Key Laboratory of Pulp and Paper Engineering, China [201333]
- Xi'an Key Laboratory of High Performance Fiber Paper-based Functional Materials, China [2019220114SYS016CG038]
Aramid nanofibers (ANFs) are outstanding mechanical enhancers of polymers because of the high strength and thermal stability, which also can be processed into macro films through vacuum filtration. However, it is difficult for other additives to improve the mechanical performances of ANFs films except carbon nanotubes (CNT). In this article, polyvinyl alcohol (PVA) and sodium borate (SB) were served as additives to synergistically improve the mechanical performances of ANFs films. It is found that the formed ANFs-PVA-SB ternary composite has a tensile strength of 279.5 MPa and a toughness of 35.7 MJ.m(-3), which are 1.4 and 2.2 times higher than those of neat ANFs films. The high strength is mainly resulted from the fortified hydrogen bonding and physical intertwining between PVA and ANFs, and the formed covalent bonds between PVA and SB, while the high toughness is mainly caused by the soft PVA.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据