eesti teaduste
akadeemia kirjastus
SINCE 1952
Proceeding cover
of the estonian academy of sciences
ISSN 1736-7530 (Electronic)
ISSN 1736-6046 (Print)
Impact Factor (2021): 1.024
Chemically bonded PA66-PTFE-oil-cb composites as novel tribologically effective materials: Part 2; pp. 493–499
PDF | 10.3176/proc.2021.4.17

Thanh-Duong Nguyen, Michaela Gedan-Smolka, Lionel Simo Kamga, Bernd Sauer, Stefan Emrich, Michael Kopnarski, Brigitte Voit

Polytetrafluoroethylene (PTFE) exhibits excellent non-stick properties and a very low coefficient of friction under tribological stress, but it is incompatible with almost all other polymers. In the first part of this study, we presented the generation of the novel tribological material based on unsaturated oil, radiation-modified PTFE and Polyamide 66 (PA66). To get a better understanding of the chemical properties and chemical composition of the compounds, the PA66-PTFE-oil-cb (chemically bonded) compounds were examined by differential scanning calorimetry (DSC) and Fourier-transform infrared spectroscopy (FTIR). In this part, the mechanical properties of the compounds are compared with plain PA66 and PA66-MP1100-cb. The tribological investigation was carried out using the block-on-ring tribometer. It was detected that the mechanical properties of PA66-PTFE-oil-cb with 20 wt% PTFE-oil-cb only show slight differences compared to PA66, but the tribological properties of the compounds were significantly improved through chemical coupling between the three components.


1. Kaiser, W. Kunststoffchemie für Ingenieure. Karl Hanser Verlag GmbH & Co. KG, 2011.

2. Lunkwitz, K., Lappan, U. and Lehmann, D. Modification of fluoropolymers by means of electron beam irradiation. Radiat. Phys. Chem., 2000, 57(3), 373–376.

3. Lehmann, D. Modified PTFE-solid lubricants and method of producing and using them. German Patent DE102014225672A, 16 June 2016. 

4. Lehmann, D. Oil-modified PTFE-solid lubricants and the method of their producing. German Patent DE102014225671, 16 June 2016. 

5. Pompe, G., Häußler, L., Adam, G. A., Eichhorn, K. J., Janke, A., Hupfer, B. and Lehmann, D. Reactive poly­tetrafluoroethylene/polyamide 6 compounds. II. Study of the reactivity with respect to the functionality of the poly­tetrafluoroethylene component and analysis of the notched impact strength of the polytetrafluoroethylene/poly­amide 6 compounds. J. Appl. Polym. Sci., 2005, 98(3), 1317–1324.

6. Nguyen, T.-D., Gedan-Smolka, M., Simo Kamga, L., Sauer, B., Emrich, S., Kopnarski, M. and Voit, B. Chemical bonded Oil-PTFE-PA66-cb composites as novel tribologically effec­tive materials: Part 1. Solid State Phenom., 2021, 320, 113–118.

7. Fornes, T. and Paul, D. Crystallization behavior of nylon 6 nanocomposites. Polymer, 2003, 44(14), 3945–3961.

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