Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L

Polydimethylsiloxane (PDMS) is widely used from biomedical to industrial applications due to its nontoxic, hydrophobic, and transparent characteristics. PDMS has good thermal and adhesion properties; however, its mechanical properties are comparatively weak. Therefore, PDMS is blended with various p...

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Autores principales:	Taşdemir Muharrem, Şenaslan Fatih, Çelik Ayhan
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	polyurethane polydimethylsiloxane blends contact angle thermal behavior Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/1896e16212234127b3f09d48b72176ac
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spelling	oai:doaj.org-article:1896e16212234127b3f09d48b72176ac2021-12-05T14:10:47ZInvestigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L1618-722910.1515/epoly-2021-0035https://doaj.org/article/1896e16212234127b3f09d48b72176ac2021-05-01T00:00:00Zhttps://doi.org/10.1515/epoly-2021-0035https://doaj.org/toc/1618-7229Polydimethylsiloxane (PDMS) is widely used from biomedical to industrial applications due to its nontoxic, hydrophobic, and transparent characteristics. PDMS has good thermal and adhesion properties; however, its mechanical properties are comparatively weak. Therefore, PDMS is blended with various polymers to effectively improve its mechanical properties. In this study, polyurethane (PU)–polydimethylsiloxane (PDMS) blended coatings of different concentrations were applied on the AISI 316L stainless steel surface. Their effects on corrosion and tribocorrosion properties were investigated in Ringer’s solutions. The blended polymer coatings were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The thermal properties of samples were examined by TGA and DSC. The surface images and cross-sectional were investigated using scanning electron microscopy (SEM). Tribocorrosion tests were carried out at open circuit potential (OCP). It was determined that hydrophobicity and thermal stability of polymer coating increased, while corrosion resistance slightly decreased with the increasing PDMS concentration in the polymer blended. The friction coefficient of blends decreased as the PU concentration increased. As a result, it was determined that the polymer-coated samples containing up to 50% PDMS prevented corrosive wear under the OCP wear test in Ringer’s solutions.Taşdemir MuharremŞenaslan FatihÇelik AyhanDe Gruyterarticlepolyurethanepolydimethylsiloxaneblendscontact anglethermal behaviorPolymers and polymer manufactureTP1080-1185ENe-Polymers, Vol 21, Iss 1, Pp 355-365 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	polyurethane polydimethylsiloxane blends contact angle thermal behavior Polymers and polymer manufacture TP1080-1185
spellingShingle	polyurethane polydimethylsiloxane blends contact angle thermal behavior Polymers and polymer manufacture TP1080-1185 Taşdemir Muharrem Şenaslan Fatih Çelik Ayhan Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L
description	Polydimethylsiloxane (PDMS) is widely used from biomedical to industrial applications due to its nontoxic, hydrophobic, and transparent characteristics. PDMS has good thermal and adhesion properties; however, its mechanical properties are comparatively weak. Therefore, PDMS is blended with various polymers to effectively improve its mechanical properties. In this study, polyurethane (PU)–polydimethylsiloxane (PDMS) blended coatings of different concentrations were applied on the AISI 316L stainless steel surface. Their effects on corrosion and tribocorrosion properties were investigated in Ringer’s solutions. The blended polymer coatings were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The thermal properties of samples were examined by TGA and DSC. The surface images and cross-sectional were investigated using scanning electron microscopy (SEM). Tribocorrosion tests were carried out at open circuit potential (OCP). It was determined that hydrophobicity and thermal stability of polymer coating increased, while corrosion resistance slightly decreased with the increasing PDMS concentration in the polymer blended. The friction coefficient of blends decreased as the PU concentration increased. As a result, it was determined that the polymer-coated samples containing up to 50% PDMS prevented corrosive wear under the OCP wear test in Ringer’s solutions.
format	article
author	Taşdemir Muharrem Şenaslan Fatih Çelik Ayhan
author_facet	Taşdemir Muharrem Şenaslan Fatih Çelik Ayhan
author_sort	Taşdemir Muharrem
title	Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L
title_short	Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L
title_full	Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L
title_fullStr	Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L
title_full_unstemmed	Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L
title_sort	investigation of corrosion and thermal behavior of pu–pdms-coated aisi 316l
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/1896e16212234127b3f09d48b72176ac
work_keys_str_mv	AT tasdemirmuharrem investigationofcorrosionandthermalbehaviorofpupdmscoatedaisi316l AT senaslanfatih investigationofcorrosionandthermalbehaviorofpupdmscoatedaisi316l AT celikayhan investigationofcorrosionandthermalbehaviorofpupdmscoatedaisi316l
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Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L

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