Tagged and enhanced interface of carbon fiber/epoxy by doping sizing agent with upconversion luminescent nanoparticles

被引：15
|
作者：
Liu, Dawei [1 ]
Li, Bo [1 ]
Li, Gang [1 ]
Wang, Leyu [2 ]
Yang, Xiaoping [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
[2] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源：
MATERIALS LETTERS | 2017年 / 196卷
基金：
中国国家自然科学基金;
关键词：
Carbon fibre; Sizing agent; Luminescence; Interfaces; Composite materials; TOUGHENED CFRP COMPOSITES; MECHANICAL-PROPERTIES; FIBERS; INTERLAYER; BIOLOGY;
D O I：
10.1016/j.matlet.2017.02.132
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A luminescent labeling method was developed to tag and enhance the carbon fiber (CF)/epoxy interface by doping sizing agent with upconversion luminescent nanoparticles (LNs). Morphology observation indicated that the value of surface roughness (Ra) decreased after sizing process and the sizing layer was about 110 nm thick. With the addition of LNs, the CF/epoxy interface was tagged with green luminescence, which showed that the interface enlarged to 1.2 lm due to interdiffusion between sizing layer and epoxy matrix. The LNs also presented a positive effect on the interfacial adhesion of CF/epoxy composites through chemical bonding among the LNs, sizing layer and matrix. The unique upconversion luminescence and reactive groups of LNs were responsible for the mechanism of luminescent labeling and interfacial enhancement, respectively. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：37 / 41
页数：5
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