Modification of the interface in carbon nanotube-grafted t-glass fiber

H. Kawada, S. Sato, M. Kameya

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In recent years, carbon nanotubes (CNTs) have attracted a lot of interest as an additional component in fiber reinforced plastics (FRP) to improve the properties of the fiber/matrix interface. An improvement of the apparent interfacial shear strength (ISS) was achieved by grafting CNTs onto reinforcement fibers instead of dispersing CNTs in the matrix. In one study, composites containing CNT-grafted fibers and epoxy resin demonstrated 26% ISS improvement over the baseline composites. However, few studies are focused on glass fibers, due to their low heat resistance. In this study, the effects of grafting CNTs onto T-glass fibers were evaluated by investigating the mechanical and interfacial properties of the CNT-grafted fiber/epoxy resin model composites. Elastic shear-lag analysis was also used to investigate the effect of CNTs on ISS. We used the chemical vapor deposition (CVD) method to graft CNTs onto T-glass fibers. As a result, CNTs were grafted relatively uniformly and cylindrically onto the fibers, which indicates that the CNT-grafting process was appropriate. The CNT-grafted fiber/epoxy resin model composites showed a significant (46~67%) increase of interfacial shear strength. The formation of an interfacial region containing CNTs was observed around each fiber. Elastic shear-lag analysis showed a 20% increase of ISS. Those results imply that the elastic modulus of the interfacial region around the fibers was higher than that of epoxy resin.

本文言語English
ホスト出版物のタイトルASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012
ページ1437-1445
ページ数9
PARTS A, B, AND C
DOI
出版ステータスPublished - 2012 12 1
イベントASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012 - Houston, TX, United States
継続期間: 2012 11 92012 11 15

出版物シリーズ

名前ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
番号PARTS A, B, AND C
3

Conference

ConferenceASME 2012 International Mechanical Engineering Congress and Exposition, IMECE 2012
国/地域United States
CityHouston, TX
Period12/11/912/11/15

ASJC Scopus subject areas

  • 機械工学

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