Quantitative Approach to Mechanochemical Process in Newly Designed Friction Type Rubbing Equipment

2015 Fiscal Year Final Research Report

• Project/Area Number: 26820329
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Gifu National College of Technology
• Principal Investigator: MOTOZUKA Satoshi 岐阜工業高等専門学校, その他部局等, 准教授 (30585089)
• Research Collaborator: TAGAYA Motohiro 長岡技術科学大学, 産学融合トップランナー養成センター, 特任准教授 (20621593)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: メカノケミカル / 炭素繊維 / 界面 / 官能基

Outline of Final Research Achievements

A simple rubbing treatment was used to mechanochemically modify the surface of carbon fibers (CFs) and its effect on their surface structure and functional groups was studied. To control the mechanochemical effect, the shear forces accompanying rubbing were kept constant using newly designed friction type rubbing equipment. Scanning electron microscopy tests and the peak positions and widths of the main Raman spectroscopy bands indicated that there were no morphological changes to the CFs following rubbing. In contrast, X-ray photoelectron spectroscopy (XPS) showed an increase in oxygen-containing functional groups. The ratio of carboxyl groups on the CF surface increased with the shear force magnitude, indicating carbon surface oxidation. The difference between the Raman and XPS results indicates that modification was confined to the first few atomic layer. Additionally, shear stress inducing the mechanochemical reaction were quantitatively evaluated.

Free Research Field

複合材料およびその界面