Funct. Mater. 2025; 32 (2): 238-241.

The article examines the effect of discrete carbon fibre (Toray T700SC brand) and organic fibre (Tanlon T700 brand) on the physical and mechanical properties of polytrifluorochloroethylene. It was established that the introduction of fibres leads to an increase in the modulus of elasticity by 2 times for carbon fibre and 1.7 times for organic fibre. It should be noted that the nature of the loading curves of plastics reinforced with carbon fibre and organic fibre is different. Carbon plastics are characterized by elastically homogeneous-plastic behaviour, which leads to irreversible changes in the shape of the samples. While for organoplastics, heterogeneous plastic behavior is observed. This difference in the nature of the curves is associated with the high stiffness of the carbon fibres. At the same time, the organic fibres have a flexible structure due to amorphousness and a lower degree of crystal orientation, as evidenced by the X-ray patterns of the fibres. The developed fibrous polymer composite materials can be recommended for the manufacture of tribotechnical products used in various areas of modern industry.