Modification of carbon fabrics by radio-frequency capacitive discharge at low pressure to regulate mechanical properties of carbon fiber reinforced plastics based on it

8th All-Russian Conference on Low Temperature Plasma in the Processes of Functional Coating Preparation

Garifullin, A.R.^1 ; Krasina, I.V.^1 ; Skidchenko, E.A.^1 ; Shaekhov, M.F.^1 ; Tikhonova, N.V.^1

PNTMC Department, Kazan National Research Technological University, Kazan

420015, Russia^1

关键词: Air-plasma treatment;    Capacitive discharges;    Carbon fiber reinforced plastics (CFRP);    Environmental friendliness;    Interlaminar shear strength;    Low pressure plasma treatment;    Oxygen-containing functional groups;    Properties of fiber;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/789/1/012014/pdf
DOI  :  10.1088/1742-6596/789/1/012014

来源: IOP

【 摘 要 】

To increase the values of mechanical properties of carbon fiber (CF) composite materials used in sports equipment production the method of radio-frequency capacitive (RFC) low-pressure plasma treatment in air was proposed. Previously it was found that this type of modification allows to effectively regulate the surface properties of fibers of different nature. This treatment method differs from the traditional ones by efficiency and environmental friendliness as it does not require the use of aggressive, environmentally hazardous chemicals. In this paper it was established that RFC low-pressure air plasma treatment of carbon fabrics enhances the interlaminar shear strength (ILSS) of carbon fiber reinforced plastic (CFRP). As a result of experimental studies of CF by Fourier Transform Infrared (FTIR) spectroscopy method it was proved that after radio-frequency capacitive plasma treatment at low pressure in air the oxygen-containing functional groups is grafted on the surface. These groups improve adhesion at the interface "matrix-fiber".