Interaction between carbon nanotubes with functional groups and epoxy resin and its effect on thermal properties of carbon nanotubes/epoxy composites

被引：5
|
作者：
Jiang, Cai [1 ]
Zhang, Jianwei [2 ]
Jiang, Dazhi [3 ]
Wang, Shaokai [1 ]
Gu, Yizhuo [1 ]
Li, Min [1 ]
He, Yonglyu [2 ]
机构：
[1] Beihang Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Aerosp Adv Mat & Performance, 37 Xue Yuan Rd, Beijing 100191, Peoples R China
[2] Natl Univ Def Technol, Coll Aerosp Sci & Engn, Dept Mat Sci & Engn, Changsha, Peoples R China
[3] Sun Yat Sen Univ, Sch Mat, Shenzhen 518107, Peoples R China
来源：
JOURNAL OF COMPOSITE MATERIALS | 2022年 / 56卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Nanocomposites; modification; surfaces; interfaces; thermal properties; INTERFACIAL CHARACTERISTICS; CNT FUNCTIONALIZATION; NANOCOMPOSITES ROLE; MOLECULAR-DYNAMICS; GLASS-TRANSITION; TEMPERATURE; INTERPHASE;
D O I：
10.1177/00219983211073510
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Carbon nanotubes (CNTs)/epoxy composites are composed of CNTs, epoxy resin, and the interphase between them. The micro-morphology of the interphase has a significant influence on the macro-properties of composites, which is mainly attributed to the difference in the interaction between CNTs and epoxy resin. However, a systematic research on the interaction between CNTs and epoxy resin on composite properties is still insufficient. In this paper, the surface properties of three types of functionalized CNTs, the adhesion forces between the typical functional groups and epoxy groups, as well as the curing characteristics and the thermal properties of the CNTs/epoxy composites were investigated by using experimental methods like surface energy analysis, atomic force microscopy, and differential scanning calorimetry. This paper performed direct measurements on the interaction between CNTs with functional groups and epoxy resin. Moreover, it provided several experimental evidences for the mechanism of interfacial interaction affecting thermal properties of CNTs/epoxy composites. It indicated that it is conducive to form covalent bonds at the CNTs/epoxy composite interface when there is a strong interaction between CNTs and epoxy resin, and the thermal property could be improved finally.
引用
收藏
页码：1287 / 1298
页数：12
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