Issue 13, 2014

Carbon-bonded carbon fiber composites containing uniformly distributed silicon carbide

Abstract

Carbon-bonded carbon fiber composites (CBCFs) containing SiC particles with uniform microstructure were produced using an innovative dispersion and flocculent approach. The mixed phenolic (Pf), SiC particles and chopped carbon fibers (Cf) were blended uniformly using polyethyleneimine (PEI) as a dispersant and polyacrylamide (PAM) as a flocculating agent. A homogeneous distribution of SiC particles coated CBCFs was obtained with the addition of 0.6 wt% PEI and 0.8 wt% PAM. The effect of PEI and PAM content on the microstructure, slurry dispersibility and stability of SiC-modified CBCFs was investigated. The compressive strength and compression modulus of the SiC-modified CBCFs were improved compared with unmodified CBCFs. This simple and versatile approach can be used to prepare large-scale and modified CBCFs.

Graphical abstract: Carbon-bonded carbon fiber composites containing uniformly distributed silicon carbide

Article information

Article type
Paper
Submitted
06 Sep 2013
Accepted
18 Dec 2013
First published
23 Dec 2013

RSC Adv., 2014,4, 6591-6596

Carbon-bonded carbon fiber composites containing uniformly distributed silicon carbide

X. Zhang, B. Xu, C. Hong, J. Han, F. Qin, W. Han, H. Cheng, C. Liu and R. He, RSC Adv., 2014, 4, 6591 DOI: 10.1039/C3RA44913K

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