Direct Conversion of Liquid Bio-Benzoxazine Precursor into Porous Graphene-Based Lubricant Additive by Laser Irradiation
Source abstract
Abstract
Rapid heating is a facile and cost-effective approach to fabricate 3D graphene materials without using a heating furnace or gas resources. Nevertheless, the generated graphene products are usually supported on solid-state precursors, which brings difficulties in controlling their geometry and dimensions for satisfying various applications. Herein, we report a strategy of conversion of liquid bio-benzoxazine precursor into porous graphene via rapid laser irradiation for fabricating lubricant additives. The 3D porous laser-induced graphene (LIG) powder was used as an additive for polyalphaolefin (PAO4) lubricants, and their tribological behavior was investigated by the ball-on-disk linear reciprocating model. Besides, the effects of both additive concentrations and loads on friction-reducing and antiwearing were systematically evaluated. Taking advantage of the outstanding dispersion stability in oil, adding only 0.5 wt % of the 3D porous LIG additive into the PAO4 lubricant results in 52 and 97% decrease in terms of coefficient of friction and wear rate under a 2 N load, respectively. With unique graphene structural formation via rapid laser irradiation on liquid bio-benzoxazine, the obtained 3D porous LIG additive affords both filling and polishing effects in lubricants during friction. The achievements obtained in this work will pioneer a way for application of LIG technology in the tribological field.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Lubricants and Their Additives · Diamond and Carbon-based Materials Research · Electrohydrodynamics and Fluid Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
Funding
National Key Research and Development Program of China · Qinglan Project of Jiangsu Province of China · National Natural Science Foundation of China
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