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| Study on the Preparation and Performance of Bio-based Multi-branch Lubricants Based on Epoxidized Soybean Oil |
| Received:December 02, 2025 Revised:December 13, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.02.013 |
| Key Words:epoxy soybean oil 10-undecenoic acid lubricant rheological properties bio-based |
| Fund Project:山东省自然科学基金项目（ZR2025QC1376）；山东工商学院青年博士启动基金（BS202473）；广东省植物资源生物炼制重点实验室资助项目（2021B1212040011）；山东济宁重点研发项目（2022JBZP003）；浙江省科技计划项目（2022C01234）。 |
| Author Name | Affiliation | Postcode | | ZHANG Xinhan* | School of Information and Electronic Engineering, Shandong Technology and Business University, Yantai, Shandong Province,264005 | 264005 | | QI Weijie | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, Plant Fibril Material Science Research Center, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LI Pengfei | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, Plant Fibril Material Science Research Center, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | ZENG Jinsong* | School of Light Industry and Engineering, State Key Lab of Advanced Papermaking and Paper-based Materials, Plant Fibril Material Science Research Center, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:Using epoxy soybean oil (ESO) as the raw material and 10-undecenoic acid (UA) as the chain extender, a self-catalytic reaction was carried out under solvent-free and catalyst-free conditions to prepare ESO-based “dendritic” polyene polymer (SUA). The effects of the molar ratio of carboxyl to epoxy groups, reaction temperature, and reaction time on the degree of branching and rheological behavior of the SUA were investigated. The results showed that the degree of branching and rheological properties of SUA could be adjusted. The branching degree gradually increased with the increase of the molar ratio of carboxyl groups to epoxy groups, reaction temperature, and reaction time. The viscosity gradually increased with the increase of reaction temperature and reaction time. It showed a trend of increasing first and then decreasing with the increase of the molar ratio of carboxyl groups to epoxy groups. When the molar ratio of carboxyl groups to epoxy groups was 1∶1, the reaction temperature and time were 170 ℃ and 8 h, respectively, the viscosity of the obtained SUA was the highest of 5.56 Pa·s. This SUA had good lubricity and rheological properties, and the preparation process was environmentally friendly, which had the potential to become a new type of green lubricant. |
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