Three-dimensionally braided carbon fiber-epoxy composites, a new type of materials for osteosynthesis devices. II. Influence of fiber surface treatment

2002 ◽  
Vol 85 (5) ◽  
pp. 1040-1046 ◽  
Author(s):  
Y. Z. Wan ◽  
Y. L. Wang ◽  
F. G. Zhou ◽  
G. X. Cheng ◽  
K. Y. Han
Keyword(s):  
Carbon Fiber ◽  
Surface Treatment ◽  
Fiber Surface ◽  
Epoxy Composites ◽  
New Type ◽  
Fiber Surface Treatment ◽  
Carbon Fiber Epoxy

Effect of Fiber Surface Treatment Techniques on Properties of Short Carbon Fiber Reinforced Phenol Formaldehyde Resin/Graphite Composite Bipolar Plate

2011 ◽  
Vol 393-395 ◽  
pp. 62-66
Author(s):  
Yan Ming Wang ◽  
Wei Qiang Wang ◽  
Ai Ju Li
Keyword(s):  
Carbon Fiber ◽  
Surface Treatment ◽  
Phenol Formaldehyde ◽  
Fiber Surface ◽  
Bipolar Plate ◽  
Graphite Composite ◽  
Bonding State ◽  
Treatment Techniques ◽  
Graphite Matrix ◽  
Fiber Surface Treatment

Research was done on carbon fiber surface treatment techniques on boundary-bonding state and properties of short carbon fiber reinforced phenol formaldehyde (PF) resin/graphite composite. By gas-phase oxidative surface treatment (GPOST)、gas-phase and liquid-phase oxidative surface treatment (GLPOST), carbon fiber and PF resin /graphite matrix is on weak boundary bonding state. The exerted outside stress can not be effectively transmitted, the composite strength is lower than that of PF resin/graphite matrix; By thick nitric acid liquid-phase oxidative surface treatment (TNALPOST) which the nitric acid has high density, fiber and matrix is on relatively weak boundary bonding state, the exerted outside stress can be effectively transmitted and composite strength can be raised on some degree. With carbon fiber content by TNALPOST 3.wt%~ 4.wt% and PF resin content 15.wt%, the composite can meet both the mechanical strength and electrical conductivity requirement on carbon filler/polymer bipolar plate by USA Department of Energy.

Effect of Fiber Surface Treatment on Interfacial Mechano-Electric Properties of Carbon Fiber Reinforced Concrete

2011 ◽  
Vol 211-212 ◽  
pp. 1087-1090 ◽  
Author(s):  
Cui Xiang Jiang ◽  
Rui Li ◽  
Ji Yun Mo ◽  
Dong Wang Zhong
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Surface Treatment ◽  
Bonding Strength ◽  
Fiber Surface ◽  
Electric Properties ◽  
Interfacial Bonding ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Fiber Surface Treatment

The effect of carbon fiber surface treatment on interfacial mechano-electric properties of carbon fiber reinforced concrete is studied by single fiber pull-out testing. As-received carbon fiber is with poor surface polarity, and the fiber-matrix interface bonding strength is low. Surface treatment of the carbon fiber improves both the interfacial bonding strength and the interfacial ductility. The interfacial bonding force and interfacial resistance increased linearly with increasing displacement until the fiber-matrix debonding was completed. The superior interfacial mechanical properties can help improve the strain-sensing ability relates to the better repeatability and reliability. But the sensitivity decreases to some extent.

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