مروری بر پوشش‌های روان‌کننده‌

نوع مقاله : مقاله مروری

نویسندگان

1 دانشجوی کارشناسی ارشد، دانشکده مهندسی پلیمر، دانشگاه صنعتی سهند تبریز

2 استاد، دانشکده مهندسی پلیمر، دانشگاه صنعتی سهند تبریز

3 استادیار،گروه پوشش‌های سطح و خوردگی، موسسه پژوهشی علوم و فناوری رنگ و پوشش

چکیده

مشکل اساسی بسیاری از تولیدات صنعتی اعم از خودرو، هوافضا، لوازم خانگی، الکترونیک و غیره، ضریب اصطکاک بالای سطوح تماسی است. بسیاری از فرآیندها در صنعت بدون استفاده از پوشش‌های روان‌کننده معروف به روان‌کننده‌های فیلم‌جامد برای سطوح درگیر در حال حرکت، غیرممکن است. از طرفی برخی از روان‌کننده‌های فیلم‌جامد سمی و اشتعال‌پذیرند، بنابراین استفاده از روان‌کننده‌های فیلم‌جامد با توجه به مزایای متعدد این مواد یک مسئله مهم مرتبط با محیط‌زیست، امنیت و سلامت است. روان‌کننده‌های فیلم‌جامد سامانه‌ای از مواد جامد هستند که برای کاهش اصطکاک بین دو سطح استفاده می‌شوند. مواد متعددی به‌عنوان روان‌کننده‌های خودروان‌کار فیلم‌جامد مورد استفاده قرار می‌گیرند. همچنین روش‌های مختلفی برای اعمال پوشش‌های خودروان‌کار وجود دارد. روان‌کننده‌های فیلم‌جامد و گریس‌ها عمدتاً از یک یا چند ذره جامد روان‌کننده که در یک اتصال‌دهنده پخش شده‌اند تشکیل شده‌اند و توسط یک حلال رقیق می‌شوند تا روی سطح اعمال شوند. در این مقاله به مطالعه روان‌کننده‌های فیلم جامد و همچنین دو دسته اصلی آن‌ها یعنی روان‌کننده‌های معدنی و آلی پرداخته شده است.

کلیدواژه‌ها


عنوان مقاله [English]

A review on lubricating coatings

نویسندگان [English]

  • Marzieh Karimi 1
  • Farhang Abbasi 2
  • Mohammad Mahdavian 3
1 Polymer Engineering Department, Sahand University of Technology
2 Polymer Engineering Department, Sahand University of Technology
3 Surface Coating and Corrosion Department, Institute for Color Science and Technology
چکیده [English]

High friction coefficient of contacting surfaces is one of essential problems in many industries, e.g. automotive, aerospace, home appliances, electronics, etc. It is almost impossible to perform lots of industrial processes without lubricating coatings known as solid film lubricants. On the other hand, some solid film lubricants are toxic and flammable which restricts their use considering health, environment and security. Solid fil lubricants are based on from solid systems used for reducing friction coefficient. Various materials have been used as solid film lubricants with different application methods. Solid film lubricants usually include one or two types of solid particle lubricants dispersed in binder diluted with a solvent to apply on a surface. This article provides are review on solid film lubricants and three main groups of them based on molybdenum sulfide, graphene and polytetrafluoroethylene.

کلیدواژه‌ها [English]

  • Solid film lubricants
  • Monybdenium sulfide
  • Graphite
  • graphene
  • coating
  • Wear
  • friction
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