Creation of High-Performance Organic Friction Modifiers for Green Tribology

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K21915
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 18:Mechanics of materials, production engineering, design engineering, and related fields
• Research Institution: Nagoya University
• Principal Investigator: Zhang Hedong 名古屋大学, 情報学研究科, 教授 (80345925)
• Co-Investigator(Kenkyū-buntansha): 塚本 眞幸 名古屋大学, 情報学研究科, 講師 (10362295) ; 三矢 保永 公益財団法人名古屋産業科学研究所, 研究部, 上席研究員 (10200065)
• Project Period (FY): 2019-06-28 – 2022-03-31
• Keywords: トライボロジー / 境界潤滑 / 摩擦調整剤

Outline of Final Research Achievements

To create high-performance organic friction modifiers (OFM), we designed and synthesized more than 10 types of TEMPO-based molecules, which include a cyclic structure with a free radical at the end of hydrocarbon chains, by changing the functional groups that connect the hydrocarbon chains to the cyclic structure and the length, number, and degree of unsaturation of the hydrocarbon chains. We gained and accumulated knowledge on the relationship between molecular structures of OFMs and their friction and wear properties. Moreover, we successfully developed a new OFM that exhibits lower friction coefficients even under highly-loaded and prolonged sliding and higher anti-wear performance than conventional OFMs.

Free Research Field

トライボロジー

Academic Significance and Societal Importance of the Research Achievements

世界エネルギー消費量の約23%は，仕事をせずに摩擦・摩耗で失われており，このエネルギー損失や温室効果ガスを極限まで削減できるグリーン潤滑技術が，地球温暖化防止には極めて重要である．そのため，潤滑油の添加剤として高性能な環境に優しい有機摩擦調整剤（OFM）が求められている．本研究は，このニーズに応え，新規なOFM分子構造を提案するとともに，その分子設計の指針が見出せた点において，学術的・社会的意義は大きい．