Antifrictional composites based on a two-component modified phenol-formaldehyde binder

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Resumo

In this paper, new polymer composite materials (PCM) based on a mixture of the resole type phenol-formaldehyde and phthalide-containing phenol-formaldehyde binders, reinforced with polyoxadiazole fiber, were obtained, and their tribological properties were studied. The influence of the content of phthalide-containing phenol-formaldehyde polymer in a two-component mixture of binders on the hardness of the surface layer, tribological and thermofrictional properties of PCM in various units of dry friction on steel has been studied. It is shown that the resulting PCM are superior to PCM based on phenol-formaldehyde or phthalide-containing phenol-formaldehyde binders of the resole type in terms of tribological and thermal friction properties.

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Sobre autores

M. Panova

Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)

Autor responsável pela correspondência
Email: maxi4@list.ru
Rússia, 119334 Moscow

D. Buyaev

Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)

Email: maxi4@list.ru
Rússia, 119334 Moscow

V. Shaposhnikova

Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences (INEOS RAS)

Email: maxi4@list.ru
Rússia, 119334 Moscow

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2. Fig. 1. Structural formula of FF-a resol type binder based on phenol, phenolphthalein and formaldehyde (FF-40).

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3. Fig. 2. Dependence of the gelatinization time of binders (1) and the microhardness of the surface of pressed PCM (2) on the content of the phthalide-containing component FF-40 in the FF binder.

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4. Fig. 3. Dependence of the coefficient of friction and the amplitude of its oscillation (1) and wear (2) of the PCM on the content of the phthalide- holding component FF-40 in the FF binder during dry friction with a steel ball counterbody.

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5. Fig. 4. Dependence of the coefficient of friction and the amplitude of its oscillation (1) and wear (2) of the PCM on the content of the FF-40 component in the FF binder during dry friction with a steel counterbody “bushing".

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6. Fig. 5. Dependence of the coefficient of friction on temperature for PCM based on FF binder (1), phthalide- holding binder FF-40 (2) and their mixtures containing 30 wt. % FF-40 (3) and 70 wt. % FF-40 (4).

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