Tribological behavior of the PDA/PTFE + Cu-SiO2 nanoparticle thin coatings
Cu-SiO2 core-shell nanoparticles (NPs) were added to the polytetrafluoroethylene (PTFE) top layer of polydopamine (PDA)/PTFE thin coatings to improve the durability of the coatings. Three very low weight percentages of Cu-SiO2 NPs (0.005 wt%, 0.0075 wt%, 0.01 wt%) were added to a PTFE dispersion, wh...
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| Veröffentlicht in: | Surface & coatings technology 2021-03, Vol.409, p.126852, Article 126852 |
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| creator | Soltani-Kordshuli, Firuze Okyere, Deborah Chen, Jingyi Miller, Charles Harris, Nathaniel Afshar-Mohajer, Mahyar Ghosh, Sujan K. Zou, Min |
| description | Cu-SiO2 core-shell nanoparticles (NPs) were added to the polytetrafluoroethylene (PTFE) top layer of polydopamine (PDA)/PTFE thin coatings to improve the durability of the coatings. Three very low weight percentages of Cu-SiO2 NPs (0.005 wt%, 0.0075 wt%, 0.01 wt%) were added to a PTFE dispersion, which was then used to dip-coat the PTFE + Cu-SiO2 NPs onto PDA-coated stainless steel substrates to form PDA/PTFE + Cu-SiO2 NP thin coatings. The resulting thin coatings were less porous and had smaller surface roughness compared to PDA/PTFE thin coatings, revealing the effect of Cu-SiO2 NPs in making more compact thin coatings with interconnected PTFE fibrils. The compaction of the coatings led to improved adhesion and durability of the PDA/PTFE + Cu-SiO2 NP thin coatings.
•Cu-SiO2 core-shell nanoparticles (NPs) were added to PTFE coatings on adhesive PDA.•Surface and tribological properties of the PDA/PTFE + NP coatings were studied.•PDA/PTFE + NP coatings are more coherent and interconnected with less porosity.•Low concentrations of Cu-SiO2 NPs prevented global coating delamination.•Adding 0.0075 wt% Cu-SiO2 NPs improved the PDA/PTFE coating life two times. |
| doi_str_mv | 10.1016/j.surfcoat.2021.126852 |
| format | Article |
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•Cu-SiO2 core-shell nanoparticles (NPs) were added to PTFE coatings on adhesive PDA.•Surface and tribological properties of the PDA/PTFE + NP coatings were studied.•PDA/PTFE + NP coatings are more coherent and interconnected with less porosity.•Low concentrations of Cu-SiO2 NPs prevented global coating delamination.•Adding 0.0075 wt% Cu-SiO2 NPs improved the PDA/PTFE coating life two times.</description><identifier>ISSN: 0257-8972</identifier><identifier>EISSN: 1879-3347</identifier><identifier>DOI: 10.1016/j.surfcoat.2021.126852</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Coating effects ; Core-shell particles ; Crystals ; Cu-SiO2 nanoparticles ; Durability ; Immersion coating ; Morphology ; Nanoparticles ; Polydopamine (PDA) ; Polytetrafluoroethylene ; Polytetrafluoroethylene (PTFE) ; Silicon dioxide ; Stainless steels ; Substrates ; Surface roughness ; Tribology ; Wear resistance</subject><ispartof>Surface & coatings technology, 2021-03, Vol.409, p.126852, Article 126852</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright Elsevier BV Mar 15, 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c388t-cc999239dccc6e1e61bd8c227fa39eb3fbb7026bf87531a00a1e359fdd9eb49c3</citedby><cites>FETCH-LOGICAL-c388t-cc999239dccc6e1e61bd8c227fa39eb3fbb7026bf87531a00a1e359fdd9eb49c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.surfcoat.2021.126852$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Soltani-Kordshuli, Firuze</creatorcontrib><creatorcontrib>Okyere, Deborah</creatorcontrib><creatorcontrib>Chen, Jingyi</creatorcontrib><creatorcontrib>Miller, Charles</creatorcontrib><creatorcontrib>Harris, Nathaniel</creatorcontrib><creatorcontrib>Afshar-Mohajer, Mahyar</creatorcontrib><creatorcontrib>Ghosh, Sujan K.</creatorcontrib><creatorcontrib>Zou, Min</creatorcontrib><title>Tribological behavior of the PDA/PTFE + Cu-SiO2 nanoparticle thin coatings</title><title>Surface & coatings technology</title><description>Cu-SiO2 core-shell nanoparticles (NPs) were added to the polytetrafluoroethylene (PTFE) top layer of polydopamine (PDA)/PTFE thin coatings to improve the durability of the coatings. Three very low weight percentages of Cu-SiO2 NPs (0.005 wt%, 0.0075 wt%, 0.01 wt%) were added to a PTFE dispersion, which was then used to dip-coat the PTFE + Cu-SiO2 NPs onto PDA-coated stainless steel substrates to form PDA/PTFE + Cu-SiO2 NP thin coatings. The resulting thin coatings were less porous and had smaller surface roughness compared to PDA/PTFE thin coatings, revealing the effect of Cu-SiO2 NPs in making more compact thin coatings with interconnected PTFE fibrils. The compaction of the coatings led to improved adhesion and durability of the PDA/PTFE + Cu-SiO2 NP thin coatings.
•Cu-SiO2 core-shell nanoparticles (NPs) were added to PTFE coatings on adhesive PDA.•Surface and tribological properties of the PDA/PTFE + NP coatings were studied.•PDA/PTFE + NP coatings are more coherent and interconnected with less porosity.•Low concentrations of Cu-SiO2 NPs prevented global coating delamination.•Adding 0.0075 wt% Cu-SiO2 NPs improved the PDA/PTFE coating life two times.</description><subject>Coating effects</subject><subject>Core-shell particles</subject><subject>Crystals</subject><subject>Cu-SiO2 nanoparticles</subject><subject>Durability</subject><subject>Immersion coating</subject><subject>Morphology</subject><subject>Nanoparticles</subject><subject>Polydopamine (PDA)</subject><subject>Polytetrafluoroethylene</subject><subject>Polytetrafluoroethylene (PTFE)</subject><subject>Silicon dioxide</subject><subject>Stainless steels</subject><subject>Substrates</subject><subject>Surface roughness</subject><subject>Tribology</subject><subject>Wear resistance</subject><issn>0257-8972</issn><issn>1879-3347</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkFtLwzAUx4MoOKdfQQI-Srtc1qZ5U-bmhcEGzueQpidbSm1m0g789nZMn306D_8b54fQLSUpJTSf1GnsgzVedykjjKaU5UXGztCIFkImnE_FORoRlomkkIJdoqsYa0IIFXI6Qm-b4Erf-K0zusEl7PTB-YC9xd0O8PrpcbLeLOb4Hs_65N2tGG516_c6dM40MHhci4_Lrt3Ga3RhdRPh5veO0cdivpm9JMvV8-vscZkYXhRdYoyUknFZGWNyoJDTsioMY8JqLqHktiwFYXlpC5FxqgnRFHgmbVUN6lQaPkZ3p9598F89xE7Vvg_tMKlYRjLBhjgdXPnJZYKPMYBV--A-dfhWlKgjN1WrP27qyE2duA3Bh1MQhh8ODoKKxkFroHIBTKcq7_6r-AHsm3kW</recordid><startdate>20210315</startdate><enddate>20210315</enddate><creator>Soltani-Kordshuli, Firuze</creator><creator>Okyere, Deborah</creator><creator>Chen, Jingyi</creator><creator>Miller, Charles</creator><creator>Harris, Nathaniel</creator><creator>Afshar-Mohajer, Mahyar</creator><creator>Ghosh, Sujan K.</creator><creator>Zou, Min</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20210315</creationdate><title>Tribological behavior of the PDA/PTFE + Cu-SiO2 nanoparticle thin coatings</title><author>Soltani-Kordshuli, Firuze ; Okyere, Deborah ; Chen, Jingyi ; Miller, Charles ; Harris, Nathaniel ; Afshar-Mohajer, Mahyar ; Ghosh, Sujan K. ; Zou, Min</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c388t-cc999239dccc6e1e61bd8c227fa39eb3fbb7026bf87531a00a1e359fdd9eb49c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Coating effects</topic><topic>Core-shell particles</topic><topic>Crystals</topic><topic>Cu-SiO2 nanoparticles</topic><topic>Durability</topic><topic>Immersion coating</topic><topic>Morphology</topic><topic>Nanoparticles</topic><topic>Polydopamine (PDA)</topic><topic>Polytetrafluoroethylene</topic><topic>Polytetrafluoroethylene (PTFE)</topic><topic>Silicon dioxide</topic><topic>Stainless steels</topic><topic>Substrates</topic><topic>Surface roughness</topic><topic>Tribology</topic><topic>Wear resistance</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Soltani-Kordshuli, Firuze</creatorcontrib><creatorcontrib>Okyere, Deborah</creatorcontrib><creatorcontrib>Chen, Jingyi</creatorcontrib><creatorcontrib>Miller, Charles</creatorcontrib><creatorcontrib>Harris, Nathaniel</creatorcontrib><creatorcontrib>Afshar-Mohajer, Mahyar</creatorcontrib><creatorcontrib>Ghosh, Sujan K.</creatorcontrib><creatorcontrib>Zou, Min</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Surface & coatings technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Soltani-Kordshuli, Firuze</au><au>Okyere, Deborah</au><au>Chen, Jingyi</au><au>Miller, Charles</au><au>Harris, Nathaniel</au><au>Afshar-Mohajer, Mahyar</au><au>Ghosh, Sujan K.</au><au>Zou, Min</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tribological behavior of the PDA/PTFE + Cu-SiO2 nanoparticle thin coatings</atitle><jtitle>Surface & coatings technology</jtitle><date>2021-03-15</date><risdate>2021</risdate><volume>409</volume><spage>126852</spage><pages>126852-</pages><artnum>126852</artnum><issn>0257-8972</issn><eissn>1879-3347</eissn><abstract>Cu-SiO2 core-shell nanoparticles (NPs) were added to the polytetrafluoroethylene (PTFE) top layer of polydopamine (PDA)/PTFE thin coatings to improve the durability of the coatings. Three very low weight percentages of Cu-SiO2 NPs (0.005 wt%, 0.0075 wt%, 0.01 wt%) were added to a PTFE dispersion, which was then used to dip-coat the PTFE + Cu-SiO2 NPs onto PDA-coated stainless steel substrates to form PDA/PTFE + Cu-SiO2 NP thin coatings. The resulting thin coatings were less porous and had smaller surface roughness compared to PDA/PTFE thin coatings, revealing the effect of Cu-SiO2 NPs in making more compact thin coatings with interconnected PTFE fibrils. The compaction of the coatings led to improved adhesion and durability of the PDA/PTFE + Cu-SiO2 NP thin coatings.
•Cu-SiO2 core-shell nanoparticles (NPs) were added to PTFE coatings on adhesive PDA.•Surface and tribological properties of the PDA/PTFE + NP coatings were studied.•PDA/PTFE + NP coatings are more coherent and interconnected with less porosity.•Low concentrations of Cu-SiO2 NPs prevented global coating delamination.•Adding 0.0075 wt% Cu-SiO2 NPs improved the PDA/PTFE coating life two times.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.surfcoat.2021.126852</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Coating effects Core-shell particles Crystals Cu-SiO2 nanoparticles Durability Immersion coating Morphology Nanoparticles Polydopamine (PDA) Polytetrafluoroethylene Polytetrafluoroethylene (PTFE) Silicon dioxide Stainless steels Substrates Surface roughness Tribology Wear resistance |
| title | Tribological behavior of the PDA/PTFE + Cu-SiO2 nanoparticle thin coatings |
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