纳米硫酸钡填充树脂基自润滑复合材料的制备及性能研究

doi:10.11896/cldb.24110150

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Abstract Self-lubricating composites of vinyl resin (VER)/polytetrafluoroethylene (PTFE)/nano-BaSO₄ were prepared by high-temperature curing. The influence of incorporating nano-BaSO₄ with varying mass fractions on the mechanical and tribological properties of the composites was investigated. The mechanical and tribological properties of the composites were subjected to testing, and the fracture surfaces as well as the worn surfaces of the composites were characterized and analyzed. The results show that with the progressive augmentation of the mass fraction of nano-BaSO₄, the hardness and compressive performance of the composites exhibit a tendency of initially ascending and subsequently descending. Meanwhile, the coefficient of friction and the wear rate both demonstrate a trend of initially declining and subsequently rising. Compared with the composites without nano-BaSO₄, when the mass fraction of nano-BaSO₄ was 20%, the hardness was increased by 10.6%, the maximum compressive strain was increased by 65.2%, the compressive strength was increased by 60.6%, the compressive modulus was increased by 2.6%, the friction coefficient was reduced by 15%, and the wear rate was reduced by 30.9%. This is attributed to the fact that nano-BaSO₄ can bear most of the loads applied to the surface of the composites, enhancing the mechanical properties of the composites. Furthermore, in the course of the frictional process, a stable and smooth transfer film is liable to be generated on the frictional surface of the composites, thereby precluding the direct contact of the frictional counterparts.

Key words： high temperature curing vinyl resin nano-BaSO₄ self-lubricating composite material mechanical property tribological property

Published: 25 November 2025 Online: 2025-11-14

CLC number:

TH145

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	Articles by authors
	SU Wanchi
	WANG Wei
	LI Xiaopeng
	YANG Haotian

Cite this article:

SU Wanchi,WANG Wei,LI Xiaopeng, et al. Study on the Preparation and Properties of Resin-based Self-lubricating Composites Filled with Nano-BaSO₄[J]. Materials Reports, 2025, 39(22): 24110150-7.

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https://www.mater-rep.com/EN/10.11896/cldb.24110150 OR https://www.mater-rep.com/EN/Y2025/V39/I22/24110150

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