Enhanced Chemical Bonding at the Fiber-Matrix Interphase in Microwave Processed Composites

1990 ◽  
Vol 189 ◽  
Author(s):  
L. T. Drzal ◽  
K. J. Hook ◽  
R. K. Agrawal
Keyword(s):  
Carbon Fiber ◽  
Epoxy Resin ◽  
Carbon Fibers ◽  
Photoelectron Spectroscopy ◽  
Chemical Interaction ◽  
Fiber Surface ◽  
Microwave Treatment ◽  
Hydroxyl Group ◽  
The Matrix ◽  
Carbon Fiber Surface

ABSTRACTThe effect of microwave processing on the chemical interactions occurring between the carbon fiber surface and the epoxy matrix constituents was investigated using X-ray Photoelectron Spectroscopy (XPS). Monofunctional model compounds of the matrix constituents were exposed to the carbon fibers at temperatures similar to those encountered during composite processing. The microwave treatment resulted in a substantial increase in the amount of chemical interaction between the fiber surface and the epoxy resin but little difference for the amine component of the matrix when compared to thermal processing. An epoxy resin/amine hardener adduct compound used to determine the hydroxyl group interaction with the carbon fiber surface indicated a low level of chemical interaction of the hydroxyl with the carbon fiber surface under the conditions used in this study.

A simple method to evaluate adhesion strength between metal layer and carbon fiber surface in metal-coated carbon fibers

2019 ◽  
Vol 162 ◽  
pp. 532-537 ◽  
Author(s):  
Kwan-Woo Kim ◽  
Seong-Hyun Kang ◽  
Kyong Yop Rhee ◽  
Kay-Hyeok An ◽  
Byung-Joo Kim
Keyword(s):  
Carbon Fiber ◽  
Adhesion Strength ◽  
Carbon Fibers ◽  
Metal Layer ◽  
Fiber Surface ◽  
Simple Method ◽  
Carbon Fiber Surface ◽  
Coated Carbon

Improving the interfacial properties of carbon fibers/vinyl ester composites by vinyl functionalization on the carbon fiber surface

RSC Advances ◽  
2016 ◽  
Vol 6 (35) ◽  
pp. 29428-29436 ◽  
Author(s):  
Xiuping Zhang ◽  
Liu Liu ◽  
Ming Li ◽  
Yanjie Chang ◽  
Lei Shang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Carbon Fibers ◽  
Vinyl Ester ◽  
Interfacial Adhesion ◽  
Fiber Surface ◽  
Interfacial Properties ◽  
Resin Composites ◽  
Vinyl Ester Resin ◽  
Adhesion Properties ◽  
Carbon Fiber Surface

APMA functionalized CFs can significantly improve the interfacial adhesion properties of the carbon fiber reinforced vinyl ester resin composites.

Interphase formation and fiber matrix adhesion in carbon fiber reinforced epoxy resin: influence of carbon fiber surface chemistry

2016 ◽  
Vol 24 (7) ◽  
pp. 691-710 ◽  
Author(s):  
Judith Moosburger-Will ◽  
Jan Jäger ◽  
Julia Strauch ◽  
Matthias Bauer ◽  
Stefan Strobl ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Surface Chemistry ◽  
Epoxy Resin ◽  
Fiber Surface ◽  
Fiber Reinforced ◽  
Matrix Adhesion ◽  
Fiber Matrix ◽  
Carbon Fiber Surface ◽  
Carbon Fiber Reinforced

Improved interfacial and impact properties of carbon fiber/epoxy composites through grafting hyperbranched polyglycerols on a carbon fiber surface

e-Polymers ◽  
2014 ◽  
Vol 14 (2) ◽  
pp. 145-150 ◽  
Author(s):  
Kaiqiang Sui ◽  
Qingbo Zhang ◽  
Yingying Liu ◽  
Lei Tan ◽  
Li Liu
Keyword(s):  
Contact Angle ◽  
Shear Strength ◽  
Carbon Fiber ◽  
Carbon Fibers ◽  
Dynamic Contact Angle ◽  
Fiber Surface ◽  
Dynamic Contact ◽  
Impact Properties ◽  
Carbon Fiber Surface ◽  
Contact Angle Analysis

AbstractGrafting hyperbranched polyglycerols onto a carbon fiber surface is done in an attempt to improve the interfacial and impact properties between carbon fiber and epoxy resin. Scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and dynamic contact angle analysis were performed to characterize the carbon fibers. The TGA result shows that the mass fraction of the hyperbranched polyglycerols grafted onto the carbon fibers surface was 9.03%. The SEM results indicate that the hyperbranched polyglycerols have been grafted onto the carbon surface and that the surface roughness of the carbon fiber significantly increased. The XPS result indicates that oxygen-containing functional groups obviously increased after modification. Dynamic contact angle analysis indicates that the surface energy of modified carbon fibers increased significantly compared with the untreated ones. Results of the mechanical property tests show that interfacial shear strength increased from 59.86 to 80.16 MPa, interlaminar shear strength increased from 57.57 to 73.49 MPa and impact strength simultaneously increased from 2.52 to 3.52 J.

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