氮化硼纳米片作为抗原子氧腐蚀填料的应用

易敏; 沈志刚; 刘磊; 梁帅帅; 王帅

doi:10.13700/j.bh.1001-5965.2014.0598

氮化硼纳米片作为抗原子氧腐蚀填料的应用

doi: 10.13700/j.bh.1001-5965.2014.0598

易敏¹,
沈志刚^1,2, ,,
刘磊²,
梁帅帅¹,
王帅¹

1.
北京航空航天大学航空科学与工程学院, 北京 100191
2. 北京航空航天大学材料科学与工程学院, 北京 100191

基金项目: 北航博士研究生创新基金(YWF14YJSY052);高等学校博士学科点专项科研基金(20131102110016);北京市教委共建项目

详细信息

作者简介:
易敏(1987-),男,湖南衡阳人,博士研究生,yimin@buaa.edu.cn

通讯作者:
沈志刚(1958-),男,江苏无锡人,教授,shenzhg@buaa.edu.cn,主要研究方向为微纳米材料制备应用与空间环境防护.

中图分类号: V45;TB37
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出版历程
- 收稿日期: 2014-09-26
- 网络出版日期: 2015-08-20

Application of BN nanosheets as atom-oxygen corrosion resistant fillers

1.
School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 对氮化硼纳米片(BNNS)作为填料提高聚合物的抗原子氧腐蚀性能进行了实验研究.利用液相剥离在聚乙烯醇(PVA)水溶液中制备了稳定分散的BNNS,采用基于离心技术的尺寸筛选方法,获得了具有3种不同横向尺寸的BNNS,其平均面积分别约为21.4,4.1, 1.0 μm².采用浇注法,将PVA/BNNS分散液原位复合成复合薄膜.原子氧腐蚀实验表明:3种 BNNS均能提高PVA的抗原子氧腐蚀性能,添加约1.0 wt%的BNNS(平均面积为21.4 μm²) 可使质量损失降低87%.BNNS对原子氧的成键和壁垒效应,是其提高抗原子氧腐蚀性能的主要原因.
- 氮化硼纳米片 /
- 原子氧 /
- 腐蚀 /
- 填料 /
- 聚合物
Abstract: The application of boron nitride nanosheets (BNNS) as fillers to enhance the polymer's atom-oxygen corrosion resistance was investigated. Stable BNNS dispersions in polyvinylalcohol (PVA) solutions were prepared by liquid-phase exfoliation. By using a centrifugation-based size-select route, BNNS with three kinds of different lateral sizes were obtained. Their average area was about 21.4, 4.1, 1.0 μm², respectively. The PVA/BNNS composite films were prepared by casting the PVA/BNNS dispersions. Atom-oxygen corrosion experiments indicate that all these BNNSs can enhance the atom-oxygen corrosion resistance of PVA. An addition of 1.0wt% BNNS (21.4 μm²) can lead to a reduction of 87% in PVA's mass loss. It is suggested that the bonding and barrier effects between atom oxygen and BNNS are responsible for the enhanced atom-oxygen corrosion resistance.
- boron nitride nanosheets /
- atom oxygen /
- corrosion /
- filler /
- polymer

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参考文献(16)

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