Effect of fiber surface on flexural strength in carbon fabric reinforced epoxy composites

被引：66

作者：

Brocks, Thatiane ^{[1
]}

Hilario Cioffi, Maria Odila ^{[1
]}

Cornelis Voorwald, Herman Jacobus ^{[1
]}

机构：

[1] Univ Estadual Paulista, Fatigue & Aeronaut Mat Res Grp, BR-12516410 Guaratingueta, Brazil

来源：

APPLIED SURFACE SCIENCE | 2013年 / 274卷

基金：

巴西圣保罗研究基金会;

关键词：

Surface properties; Interfacial adhesion; Structural composites; Flexural properties; BEHAVIOR; PERFORMANCE;

D O I：

10.1016/j.apsusc.2013.03.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of carbon fiber surface characteristics on flexural properties of structural composites is studied in this work. Two types of intermediate modulus carbon fibers were used: T800HB and IM7. Results revealed that higher mechanical properties are linked with higher interfacial adhesion. Morphologies and chemical compositions of commercial carbon fibers (CF) were characterized by Fourier Transformed Infra Red (FTIR) and Scanning Electronic Microscopy (SEM). Comparing the results, the T800HB apparently has more roughness, since the IM7 seems to be recovered for a polymeric film. On other hand, the IM7 one shows higher interactivity with epoxy resin system Cycom 890 RTM. Composites produced with Resin Transfer Molding (RTM) were tested on a flexural trial. Interfacial adhesion difference was showed with SEM and Dynamic Mechanical Analyses (DMA), justifying the higher flexural behavior of composites made with IM7 fibers. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：210 / 216

页数：7

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