<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>PAN-based carbon fiber was surface-modified with silane coating, and a composite material was prepared using a PI resin as a matrix. The structure and surface properties of carbon fibers were studied by means of X-ray photoelectron spectroscopy (XPS) and SEM. The tensile strength of the composite was measured by a tensile tester, and the friction properties of the composite were measured by a micro-nano mechanics comprehensive test system. The results show that treatment with silane coating can improve the surface roughness and chemical activity of carbon fiber, improve the interface between carbon fiber and PI resin matrix, and improve the tensile strength and wear rate of the composite.</p>
</abstract>

PAN-based carbon fiber was surface-modified with silane coating, and a composite material was prepared using a PI resin as a matrix. The structure and surface properties of carbon fibers were studied by means of X-ray photoelectron spectroscopy (XPS) and SEM. The tensile strength of the composite was measured by a tensile tester, and the friction properties of the composite were measured by a micro-nano mechanics comprehensive test system. The results show that treatment with silane coating can improve the surface roughness and chemical activity of carbon fiber, improve the interface between carbon fiber and PI resin matrix, and improve the tensile strength and wear rate of the composite.

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

The Key Laboratory of Modern Agricultural Engineering in the Ordinary Colleges and Universities of Xinjiang

College of Mechanical and Electrical Engineering

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

PAN-based carbon fiber was surface-modified with silane coating, and a composite material was prepared using a PI resin as a matrix. The structure and surface...

Surface treatment	Elementary composition / %				Atom ratio / %

	C	O	N	Si2p	O/C	N/C

Untreated	82.3	10.2	7.5	–	12.4	8.9
0.1% coating	77.7	13.1	8.4	0.8	16.9	10.7
0.2% coating	75.3	14.4	9.1	1.2	19.1	12.1
0.3% coating	76.9	13.2	8.47	1.42	17.2	11.0

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

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

Publié en ligne: 20 sept. 2022

Pages: 214 - 222

Reçu: 05 avr. 2022

Accepté: 01 juil. 2022

DOI: https://doi.org/10.2478/msp-2022-0022

Mots clés
mechanical, PI, CF, friction, SEM

© 2022 Liu Yang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Surface elementary composition of carbon fibers.

Main properties of PI (GCTPTM).

Chemical composition of GCr15 steel (wt %).

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

Publié en ligne: 20 sept. 2022

Pages: 214 - 222

Reçu: 05 avr. 2022

Accepté: 01 juil. 2022

DOI: https://doi.org/10.2478/msp-2022-0022

Mots clésmechanical, PI, CF, friction, SEM

© 2022 Liu Yang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Surface elementary composition of carbon fibers.

Main properties of PI (GCTPTM).

Chemical composition of GCr15 steel (wt %).

Mots clés
mechanical, PI, CF, friction, SEM