Effect of oxygen plasma treatment of PPTA and PBO fibers on the interfacial properties of single fiber/epoxy composites studied by Raman spectroscopy

被引：48

作者：

Tamargo-Martinez, K. ^{[1
]}

Martinez-Alonso, A. ^{[1
]}

Montes-Moran, M. A. ^{[1
]}

Tascon, J. M. D. ^{[1
]}

机构：

[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2011年 / 71卷 / 06期

关键词：

Polymer-matrix composites (PMCs); Surface treatments; Interfacial strength; Raman spectroscopy; HIGH-PERFORMANCE FIBERS; ROD POLYMER FIBERS; DEFORMATION-BEHAVIOR; ADHESION; TENSION; COMPRESSION; SHIFTS;

D O I：

10.1016/j.compscitech.2010.10.008

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The interfacial micromechanics of single poly(p-phenylene terephthalamide (PPTA) and poly(p-phenylene benzobisoxazole (PBO) fibers embedded in an epoxy resin has been investigated by determining the interfacial shear stress distributions along the fiber length. The effects of an oxygen plasma treatment on the interfacial shear stress of the fiber-epoxy systems are analyzed. Raman spectroscopy was used to map the stress distributions along the fiber when the composite is subjected to a small axial tensile strain (3.5% for PPTA and 2.5% for PBO). The quality of the interface or adhesion was improved after the surface treatment, supporting the ability of plasma oxidation to enhance the adhesion of high-performance fibers to epoxy resins. The tensile behavior of fiber-reinforced systems was different in each case. PPTA reinforcements underwent fragmentation, likely by fiber microfailure, whereas debonding or bridging is the most probable fragmentation mechanism in the case of PBO. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：784 / 790

页数：7

共 39 条

[1] APPLICATION OF THE MICROBOND TECHNIQUE .4. IMPROVED FIBER MATRIX ADHESION BY RF PLASMA TREATMENT OF ORGANIC FIBERS [J].