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Lubricants
Volume 14
Issue 6
10.3390/lubricants14060222
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Friction and Wear Properties of Spherical Methyl Silicone Resin as an Additive in Polyethylene Glycol Base Oil

by
Haiyang Wang
1,
Zhongyi He
2,
Zongbin Wang
3,
Haodi Zhang
1,
Liping Xiong
2 and
Xiaogang Jiang
1,*
1
School of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, China
2
School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China
3
Jinan Shunmao Testing Instrument Co., Ltd., Jinan 250116, China
*
Author to whom correspondence should be addressed.
Lubricants 2026, 14(6), 222; https://doi.org/10.3390/lubricants14060222
Submission received: 12 April 2026 / Revised: 23 May 2026 / Accepted: 26 May 2026 / Published: 29 May 2026
Versions Notes

Abstract

This study investigates spherical methyl silicone resin, a potentially environmentally friendly additive free of sulfur, phosphorus, and chlorine, as a lubricant additive in polyethylene glycol 200 (PEG 200) base oils. We evaluated concentration-response characteristics and tribological performance across PEG base oils containing 0.01–0.05 wt% resin. Tribological testing was conducted with a four-ball wear tester at 98 N and 1450 rpm for 30 min. All tested concentrations demonstrated excellent friction-reduction and anti-wear performance, with an optimal efficacy observed at 0.02 wt%. Surface characterization was performed using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. This friction-reducing and anti-wear performance is attributed to the formation of silicon-oxygen species and graphene-like carbon structures, thereby effectively suppressing direct surface contact and mitigating wear. Consequently, spherical methyl silicone resin demonstrates considerable potential as a green lubricant additive for bearing steel applications.
Keywords: spherical methyl silicone resin; polyethylene glycol 200; friction and wear properties spherical methyl silicone resin; polyethylene glycol 200; friction and wear properties

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MDPI and ACS Style

Wang, H.; He, Z.; Wang, Z.; Zhang, H.; Xiong, L.; Jiang, X. Friction and Wear Properties of Spherical Methyl Silicone Resin as an Additive in Polyethylene Glycol Base Oil. Lubricants 2026, 14, 222. https://doi.org/10.3390/lubricants14060222

AMA Style

Wang H, He Z, Wang Z, Zhang H, Xiong L, Jiang X. Friction and Wear Properties of Spherical Methyl Silicone Resin as an Additive in Polyethylene Glycol Base Oil. Lubricants. 2026; 14(6):222. https://doi.org/10.3390/lubricants14060222

Chicago/Turabian Style

Wang, Haiyang, Zhongyi He, Zongbin Wang, Haodi Zhang, Liping Xiong, and Xiaogang Jiang. 2026. "Friction and Wear Properties of Spherical Methyl Silicone Resin as an Additive in Polyethylene Glycol Base Oil" Lubricants 14, no. 6: 222. https://doi.org/10.3390/lubricants14060222

APA Style

Wang, H., He, Z., Wang, Z., Zhang, H., Xiong, L., & Jiang, X. (2026). Friction and Wear Properties of Spherical Methyl Silicone Resin as an Additive in Polyethylene Glycol Base Oil. Lubricants, 14(6), 222. https://doi.org/10.3390/lubricants14060222

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