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Performance of polymer composites lubricated with glycerol and water as green lubricants
ID
Trajkovski, Ana
(
Avtor
),
ID
Novak, Nejc
(
Avtor
),
ID
Pustavrh, Jan
(
Avtor
),
ID
Kalin, Mitjan
(
Avtor
),
ID
Majdič, Franc
(
Avtor
)
PDF - Predstavitvena datoteka,
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(2,81 MB)
MD5: CD57DFA525F0E2F841F4460B7F5760C9
URL - Izvorni URL, za dostop obiščite
https://www.mdpi.com/2076-3417/13/13/7413
Galerija slik
Izvleček
The study analysed the tribological performance of five different polymer composites: polyetheretherketone reinforced with 30% carbon fibres—PEEK CF30, polyetheretherketone reinforced with 10% carbon fibres, 10% graphite and 10% polytetrafluoroethylene—PEEK MOD, polytetrafluoroethylene reinforced with 25% carbon fibres—PTFE CF25, polyoxymethylene with 30% carbon fibres—POM CF30 and ultra-high molecular weight polyethylene—UHMW PE. The polymers were tested under the sliding regime of a reciprocating stainless-steel ball on a polymer disc, with test parameters expected for hydraulic valves. Two environmentally safe lubricants were used: glycerol and water. The selected polymer materials and their tribological properties were compared based on the coefficient of friction and the specific wear rate. The worn surfaces were examined using scanning electron microscopy, and the transfer film was analysed using the energy dispersive spectroscopy technique. When tested in glycerol, a comparable and low coefficient of friction was measured for all polymers (~0.02). At the same time, a significantly lower coefficient was measured for all polymers in glycerol compared to water-lubricated conditions (~0.06–0.22). The polymers differed in the measured specific wear rate, which increases significantly in water for all polymers. A lower specific wear rate was measured for three polymers with higher microhardness: PEEK CF30, PEEK MOD and POM CF30. In water, PEEK CF30 showed superior tribological properties under harsh conditions but was well followed by POM CF30, which showed the most intense transfer film.
Jezik:
Angleški jezik
Ključne besede:
hydraulics
,
polymer composites
,
green lubricants
,
glycerol
,
water
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2023
Št. strani:
15 str.
Številčenje:
Vol. 13, iss. 13, art. 7413
PID:
20.500.12556/RUL-147624
UDK:
621.22
ISSN pri članku:
2076-3417
DOI:
10.3390/app13137413
COBISS.SI-ID:
158280707
Datum objave v RUL:
10.07.2023
Število ogledov:
1042
Število prenosov:
57
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Objavi na:
Gradivo je del revije
Naslov:
Applied sciences
Skrajšan naslov:
Appl. sci.
Založnik:
MDPI
ISSN:
2076-3417
COBISS.SI-ID:
522979353
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
hidravlika
,
polimerni kompoziti
,
zelena maziva
,
glicerol
,
voda
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0231
Naslov:
Tribologija
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