Synthesis of boron ester-containing additives for lubrication

  • سال انتشار: 1398
  • محل انتشار: بیست و هفتمین کنفرانس شیمی آلی ایران
  • کد COI اختصاصی: ISOC27_332
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 312
دانلود فایل این مقاله

نویسندگان

Mehrdad Mahkam

Chemistry Department, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran

Samane Emamali Sabzi

Chemistry Department, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran

Ebrahim Rezaii

Chemistry Department, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran

چکیده

Lubricating oil is a functional material applied for separating two surfaces. During the last decades, additives have been added to the lubricants to give them special properties and improve their lubrication performance.1 Boron and boronate compounds are widely used in a range of tribological applications such as friction modifiers, antioxidants, antiwear additives, and in many cases as environmentally friendly lubricants oils and fuels. To improve the hydrolytic stability of borate esters, the addition of some amine compounds to produce additional molecular coordination is used.2 added of electron-rich groups (such as nitrogen atom) into borate ester, to stabilize the electron-deficient of boron atom, and that can reduce the possibility of attack by some nucleophiles. More importantly, it can enhance antiwear performance for the synergetic effect between boron and nitrogen element.3 Herein, we report the synthesis of boron ester-containing additives to improve the performance of a lubricating oil from the reaction between fatty acids and boric acid with secondary amine in toluene solvent at 250 °C. Finally, a reddish viscous liquid was obtained. It has the ability to dissolve in oil, as well as its antioxidant properties and viscosity. All synthesized compounds are stable materials whose structure is based on their mass spectra, 1H and 13C-NMR and IR spectroscopy data.

کلیدواژه ها

Boron ester, Antiwear, Antioxidant, Lubricant, Additives

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.