Modification of the carbon fiber/matrix interface using gas plasma treatment with acetylene and oxygen

1998 ◽  
Vol 12 (5) ◽  
pp. 523-539 ◽  
Author(s):  
S. Feih ◽  
P. Schwartz
Keyword(s):  
Carbon Fiber ◽  
Plasma Treatment ◽  
Matrix Interface ◽  
Gas Plasma ◽  
Fiber Matrix Interface ◽  
Fiber Matrix

XPS study of the carbon fiber matrix interface

Carbon ◽  
1990 ◽  
Vol 28 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Youichi Nakayama ◽  
Fusami Soeda ◽  
Akira Ishitani
Keyword(s):  
Carbon Fiber ◽  
Matrix Interface ◽  
Fiber Matrix Interface ◽  
Fiber Matrix ◽  
Xps Study

Effects of Thermal Cycling on Properties of Carbon Fiber/Aluminum Composites

1988 ◽  
Vol 110 (2) ◽  
pp. 89-95 ◽  
Author(s):  
Tetsuyuki Kyono ◽  
Etsuro Kuroda ◽  
Atsushi Kitamura ◽  
Tsutomu Mori ◽  
Minoru Taya
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Thermal Cycling ◽  
Degradation Mechanism ◽  
Matrix Interface ◽  
Aluminum Composites ◽  
Longitudinal Tensile Strength ◽  
Casting Technique ◽  
Fiber Matrix Interface ◽  
Fiber Matrix

Effects of thermal cycling on mechanical properties such as longitudinal tensile strength, interlaminar shear strength and work of fracture of carbon fiber/aluminum composites have been investigated. The composite specimens fabricated by a squeeze casting technique were thermally cycled in fluidized baths between room temperature and various temperatures (250, 300, and 350° C) for up to 1000 cycles. The cross sections and fracture surfaces were examined to clarify the degradation mechanism. Significant degradation of the mechanical properties by thermal cycling was observed in untreated carbon fiber/aluminum composites whereas much less degradation in surface treated carbon fiber/aluminum composites. Microscopic observations and short beam shear tests have indicated that the degradation of mechanical properties is caused by debonding at the fiber/matrix interface. The fiber/matrix interface for surface treated fiber was more resistant to debonding. It is concluded that thermal cycling damage of carbon fiber/aluminum composites can be minimized by increasing their fiber/matrix bond strengths.

The Effect of Thermal Aging on Tensile Strength of Three-Dimension and Five-Direction Braided Carbon Fiber/BMI Composites

2010 ◽  
Vol 150-151 ◽  
pp. 1139-1142
Author(s):  
Qi Wei Guo ◽  
Jia Lu Li ◽  
Guo Li Zhang ◽  
Ye Hong He ◽  
Ming Zhang ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Carbon Fiber ◽  
Thermal Aging ◽  
Testing Machine ◽  
Tensile Load ◽  
Three Dimension ◽  
Matrix Interface ◽  
Fiber Matrix Interface ◽  
Fiber Matrix ◽  
Universal Material Testing Machine

This work aims at investigating the effect of thermal aging on tensile properties of three-dimension (3D) and five-direction braided carbon fiber/BMI resin composites prepared by resin transfer molding (RTM) process. The influence of high temperature on the tensile strength and the failure mechanisms of un-aged and aged composites were studied, respectively. As for the thermal aging condition, 180 for 24h was selected. The tensile strength of both un-aged and aged specimens were tested by SHIMADZU universal material testing machine at room temperature. The fracture modes of specimens were observed by scanning electron microscopy (SEM). It was found that the tensile load at break and tensile strength decreased after ageing. From the SEM views of the failed samples, the fracture surface presented hackles which were specific to the debonding of the interface between fibers and matrix. A lot of fibers were pulled-out in the aged state specimen. It can be confirmed that the failure occurred at the fiber/matrix interface and the fiber/matrix interface seemed to be weak in aged carbon fabrics reinforced BMI composites.

scholarly journals Modification of Renewable Cardanol onto Carbon Fiber for the Improved Interfacial Properties of Advanced Polymer Composites

Polymers ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 45 ◽  
Author(s):  
Yawen Zheng ◽  
Lei Chen ◽  
Xiaoyun Wang ◽  
Guangshun Wu
Keyword(s):  
Carbon Fiber ◽  
Photoelectron Spectroscopy ◽  
In Situ Polymerization ◽  
Hydroxyl Groups ◽  
Matrix Interface ◽  
The Matrix ◽  
Fiber Matrix Interface ◽  
Fiber Matrix ◽  
Interlaminar Shear

A facile in situ polymerization was developed for grafting renewable cardanol onto the carbon fiber (CF) surfaces to strengthen the fiber–matrix interface. CFs were chemically modified with hydroxyl groups by using an aryl diazonium reaction, and then copolymerized in situ with hexachlorocyclotriphosphazene (HCCP) and cardanol to build cardanol-modified fibers (CF-cardanol). The cardanol molecules were successfully introduced, as confirmed using Raman spectra and X-ray photoelectron spectroscopy (XPS); the cardanol molecules were found to increase the surface roughness, energy, interfacial wettability, and activity with the matrix resin. As a result, the interlaminar shear strength (ILSS) of CF-cardanol composites increased from 48.2 to 68.13 MPa. In addition, the anti-hydrothermal ageing properties of the modified composites were significantly increased. The reinforcing mechanisms of the fiber–matrix interface were also studied.

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