Improved interfacial bonding strength of silicone rubber/carbon fiber modified by dopamine

A kind of silicone rubber (SR)/carbon fiber (CF)@polydopamine (PDA) flexible composites were prepared in this work. CF was modified by oxidative self‐polymerization of dopamine (DA), and the effect of DA concentration on properties of SR/CF@PDA composites was researched. The transverse fiber bundle...

Full description

Saved in:
Bibliographic Details
Published in:Polymer composites 2022-10, Vol.43 (10), p.6975-6986
Main Authors: Gu, Bo, Pu, Guohong, Ding, Bonan, Zhang, Kai, He, Ren, Fan, Jinghui, Xing, Tao, Wu, Juying, Yang, Wenbin
Format: Article
Language:English
Subjects:
Bonding strength
carbon fiber
Carbon fibers
Composite materials
Dopamine
Elongation
interfacial bonding
Silicone rubber
Tensile strength
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A kind of silicone rubber (SR)/carbon fiber (CF)@polydopamine (PDA) flexible composites were prepared in this work. CF was modified by oxidative self‐polymerization of dopamine (DA), and the effect of DA concentration on properties of SR/CF@PDA composites was researched. The transverse fiber bundle tests have shown that SR/CF@PDA‐1.5 has the best interfacial bonding performance. Compared with SR/CF, tensile strength and elongation at break of SR/CF@PDA‐1.5 were increased by 61.7% and 68.4%, respectively. Results indicate that the interfacial bonding of SR/CF@PDA composites was effectively improved due to the adhesion properties of PDA. Moreover, the rough surface of CF@PDA also enhanced the interface interaction through physical “interlocking.” When being compared to other surface modification process, dopamine‐modified carbon fiber is cost effective, “green” and highly efficient. SR/CF@PDA with an excellent interfacial bonding and flexibility is a kind of wrapping material for protection of special precision instruments.
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.26759