Modifying the carbon fiber–epoxy matrix interphase with silicon dioxide nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2457-2465 ◽  
Author(s):  
Wenzhen Qin ◽  
Frederic Vautard ◽  
Per Askeland ◽  
Junrong Yu ◽  
Lawrence Drzal
Keyword(s):  
Carbon Fiber ◽  
Silicon Dioxide ◽  
Epoxy Matrix ◽  
Fiber Surface ◽  
Silicon Dioxide Nanoparticles ◽  
Nanoparticle Suspension ◽  
Carbon Fiber Surface ◽  
Carbon Fiber Epoxy

The carbon fiber surface was modified by silicon dioxide nanoparticles by immersing CFs tows in a SiO2 nanoparticle suspension. A significant increase of the IFSS was obtained.

Incorporation of silicon dioxide nanoparticles at the carbon fiber-epoxy matrix interphase and its effect on composite mechanical properties

2015 ◽  
Vol 38 (7) ◽  
pp. 1474-1482 ◽  
Author(s):  
Wenzhen Qin ◽  
Frederic Vautard ◽  
Per Askeland ◽  
Junrong Yu ◽  
Lawrence T. Drzal
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Silicon Dioxide ◽  
Epoxy Matrix ◽  
Silicon Dioxide Nanoparticles ◽  
Carbon Fiber Epoxy

Controlled Interphase in Carbon Fiber/Epoxy Composites by Molecular Self-Assembly Method

2006 ◽  
Vol 313 ◽  
pp. 121-128
Author(s):  
J.M. He ◽  
Yu Dong Huang
Keyword(s):  
Carbon Fiber ◽  
Photoelectron Spectroscopy ◽  
Self Assembly ◽  
Epoxy Matrix ◽  
Fiber Surface ◽  
Assembly Method ◽  
Aromatic Thiols ◽  
Surface Enhanced Raman ◽  
Strong Adhesion ◽  
Carbon Fiber Surface

In this paper, a new method based on molecular self-assembly on carbon fiber surface was proposed for the improvement of interfacial properties between fiber and epoxy matrix in a composite system. In order to obtain the controlled interphase, the surface of carbon fibers was first metallized by electroless Ag plating, then was reacted with terminally functionized alkanethiols or aromatic thiols to form Ag-thiolate thin films, which further reacted with epoxy resin to generate a strong adhesion interface. The composition, structure and the morphology of the modified carbon fiber surface were examined by X-ray photoelectron spectroscopy (XPS), surface-enhanced Raman scattering (SERS) and atomic force microscope (AFM), respectively. The results showed that these self-assembly molecules were chemisorbed onto the carbon fiber surface coated with silver via the strong S-Ag bond. In addition, these thiol molecules act as coupling agents between the epoxy matrix and carbon fiber through active functional end-groups, such as –OH, -NH2. The interfacial shear strength (IFSS) of the microcomposites after introduced the controlled interphase using the microbond testing was improved.

Preparation and Property of Epoxy Based Nano-SiO2/TiO2/Polyimide Hybrid Enhanced Sizing

2011 ◽  
Vol 335-336 ◽  
pp. 96-100
Author(s):  
Cun Zhou ◽  
Jian Li Cheng ◽  
Yu Sun
Keyword(s):  
Carbon Fiber ◽  
Sol Gel ◽  
Fiber Surface ◽  
Nano Particles ◽  
Interface Properties ◽  
Particle Size Analyzer ◽  
Complex Technology ◽  
Carbon Fiber Surface ◽  
Interlaminar Shear ◽  
Micro Morphology

Abstract: An epoxy based nano-SiO2/TiO2/polyimide hybrid enhanced sizing for carbon fiber was prepared by modified SiO2/TiO2precursor in PAA collosol with silane couple agent(WD-50) and eligibility surfactant via sol-gel reaction, and both ultrasonic cavitation and multi-complex technology were used during the process. The properties of PAA-SiO2-TiO2hybrid sizing and micro-morphology of carbon fiber surface were analyzed by FTIR, DSC, Particle Size Analyzer and STM. The results indicated that nanoscale SiO2•TiO2particles dispersed in the hybrid sizing film homogeneously, and a layer with nano particles was formed on carbon fiber surface after treated by the hybrid enhanceing sizing. The roughness was increased and interface properties of carbon fiber would be improved. At the same time both tensile strength and the interlaminar shear strength were increased obviously.

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