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Effect of silane coating surface treatment on friction and wear properties of carbon fiber/PI composites Cover

Effect of silane coating surface treatment on friction and wear properties of carbon fiber/PI composites

Materials Science-Poland
Volume 40 (2022): Issue 2 (August 2022)
By: Liu Yang,  Li Bin,  He Yichuan,  Dong Yuncheng and  Wang Shiguo  
Open Access
|Sep 2022

Figures & Tables

Fig. 1

The schematic diagram of the friction pair.
The schematic diagram of the friction pair.

Fig. 2

Scanning electron micrograph of CF (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).
Scanning electron micrograph of CF (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).

Fig. 3

Cross-sectional scanning electron micrographs of CF/PI (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).
Cross-sectional scanning electron micrographs of CF/PI (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).

Fig. 4

The tensile strength of the composites (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).
The tensile strength of the composites (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).

Fig. 5

SEM photographs of the composite after wear (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).
SEM photographs of the composite after wear (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).

Fig. 6

The coefficient of friction and wear rate of the composite (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).
The coefficient of friction and wear rate of the composite (a: untreated, b: 1wt% silane coating, c: 2wt% silane coating, and d: 3wt% silane coating).

Fig. 7

SEM micrographs of transfer film on the coupling surface (a: untreated and b: 3wt% silane coating).
SEM micrographs of transfer film on the coupling surface (a: untreated and b: 3wt% silane coating).

Surface elementary composition of carbon fibers_

Surface treatmentElementary composition / %Atom ratio / %
CONSi2pO/CN/C
Untreated82.310.27.5–12.48.9
0.1% coating77.713.18.40.816.910.7
0.2% coating75.314.49.11.219.112.1
0.3% coating76.913.28.471.4217.211.0

Main properties of PI (GCTPTM)_

Density (kg/m3)1350Impact strength (kJ/m2)25
Tensile Strength (MPa)95Thermal expansion coefficient (°C−1)4.8 × 10−5
Elongation at break (%)7Tg (°C)260
Flexural strength (MPa)150Thermal decomposition temperature (°C)240

Chemical composition of GCr15 steel (wt %)_

CSiMnCrPSFe
0.95–1.050.15–0.350.2–0.41.30–1.65⩽ 0.027⩽ 0.02Remainder
DOI: https://doi.org/10.2478/msp-2022-0022 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 214 - 222
Submitted on: Apr 5, 2022
Accepted on: Jul 1, 2022
Published on: Sep 20, 2022
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
mechanical,
PI,
CF,
friction,
SEM
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2022 Liu Yang, Li Bin, He Yichuan, Dong Yuncheng, Wang Shiguo, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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