Fabrication of Self-Lubricating Porous UHMWPE with Excellent Mechanical Properties and Friction Performance via Rotary Sintering

Cao, Xianwu; Li, Yuping; He, Guangjian

doi:10.3390/polym12061335

Cited by 14 publications

(10 citation statements)

References 44 publications

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“…(a) Rotary sintering plant, 34 (b) preparation process of porous matrix and CPCM [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Methodsmentioning

confidence: 99%

“…33 UHMWPE with 3D porous structure can be formed by controlling the sintering process. Additionally, UHMWPE and PW have the similar chemical structure and good compatibility, 34 which is beneficial to the adsorption of PW by UHMWPE. Nevertheless, to our best knowledge, the use of rotary sintered UHMWPE as the porous carrier of CPCM has not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel paraffin wax/ultra‐high molecular weight polyethylene composite phase change materials modified by carbon nanotubes with excellent combination property

Cao

et al. 2021

J of Applied Polymer Sci

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Phase change materials store and release heat energy in the process of phase change, so as to realize the effective recovery and utilization of heat energy. In this work, ultra-high molecular weight polyethylene (UHMWPE)@carbon nanotubes (CNT) 3D porous matrix were fabricated by rotary sintering. By vacuum adsorbing paraffin wax (PW) into UHMWPE@CNT porous matrix, composite phase change materials (CPCM) with excellent shape stability and mechanical properties were obtained. In addition, thermal gravimetric analysis (TG) results showed that the thermal stability of PW in CPCM was significantly improved. Moreover, the highest thermal conductivity of CPCM was 0.31 W m À1 K À1 at a relatively low content of CNT, which was 1.71 times that of CPCM without CNT. CNT was uniformly dispersed in the porous matrix of UHMWPE to enhance the thermal properties of CPCM. Especially when the CNT content was 1.5%, the thermal storage performance and photothermal conversion efficiency of CPCM were effectively improved. Therefore, the CPCM prepared by this method with excellent combination property, had great application prospect in energy storage.

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“…(a) Rotary sintering plant, 34 (b) preparation process of porous matrix and CPCM [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel paraffin wax/ultra‐high molecular weight polyethylene composite phase change materials modified by carbon nanotubes with excellent combination property

Cao

et al. 2021

J of Applied Polymer Sci

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“…PTFE, UHMWPE, Molybdenum disulfide (MoS 2 ), SiC, carbon fiber, etc. Are used as lubricant materials or reinforcing fillers to improve the friction properties of polymers (Li et al, 2007;Chanda et al, 2019;Salem et al, 2019;Cao et al, 2020). Among them, CNTs are the ideal modifiers for the fabrication of polymer composites with high tribological properties due to their unique structures and excellent properties.…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of carbon nanotube/polymer composites:A mini-review

Miao

Chen²,

Li³

et al. 2023

Front. Mater.

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With the development of modern industry, the requirements for mechanical equipment are increasingly stringent, and increasing attention has been paid to reducing wear or lubrication in the movement of mechanical structural parts. Polymers are widely used in the field of mechanical structural parts due to their high processing performance and comprehensive performance. However, the relatively weak mechanical and tribological properties of polymers limit their further application in mechanical equipment lubrication. Incorporation of fillers is a common method to improve the friction properties of polymers. Among various fillers, carbon nanotubes (CNTs) are considered the ideal fillers to significantly improve the tribological properties of polymers. Therefore, this paper reviews the tribological properties of carbon nanotube modified polymer materials. The tribological wear mechanism of polymers and the influence of friction-reducing fillers on the tribological properties of polymers and the related lubrication mechanism explanation are outlined, and the factors influencing the tribological properties of composites by carbon nanotubes and the related lubrication mechanism explanation are analyzed. The presented review will be beneficial for the production of high-performance polymer nanocomposites.

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“…Although the rise in temperature causes the degradation and decomposition of UHMWPE, and therefore, the mechanical and tribological properties (Golmakani et al , 2021). Cao (2020) used sintering to fabricate porous self-lubricating materials from UHMWPE. The test results showed that the specimens with a sintering temperature of 180°C or 190°C, sintering time of 10 min kept low friction coefficients and wear rates.…”

Section: Introductionmentioning

confidence: 99%

Tribological behavior of UHMWPE in water lubrication: the effect of molding temperature

Zhou

Yang

Huang

et al. 2022

ILT

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Purpose Ultra-high molecular weight polyethylene (UHMWPE) is adopted in water-lubricated bearings for its excellent performance. This paper aims to investigate the tribological properties of UHMWPE with a molecular weight of 10.2 million (g mol‐1) under different molding temperatures. Design/methodology/approach The UHMWPE samples were prepared by mold pressing under constant pressure and different molding temperatures (140°C, 160°C, 180°C, 200°C, 220°C). The friction and wear tests in water were conducted at the RTEC tribo-tester. Findings The friction coefficient and wear loss decreased first and rose later with the increasing molding temperature. The minimums of the friction coefficient and wear loss were found at the molding temperatures of 200°C. At low melting temperatures, the UHMWPE molecular chains could not unwrap thoroughly, leading to greater abrasive wear. On the other hand, high melting temperatures will cause the UHMWPE molecular chains to break up and decompose. The optimal molding temperatures for UHMWPE were found to be 200°C. Originality/value Findings are of great significance for the design of water-lubricated UHMWPE bearings.

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Fabrication of Self-Lubricating Porous UHMWPE with Excellent Mechanical Properties and Friction Performance via Rotary Sintering

Cited by 14 publications

References 44 publications

Novel paraffin wax/ultra‐high molecular weight polyethylene composite phase change materials modified by carbon nanotubes with excellent combination property

Novel paraffin wax/ultra‐high molecular weight polyethylene composite phase change materials modified by carbon nanotubes with excellent combination property

Tribological properties of carbon nanotube/polymer composites:A mini-review

Tribological behavior of UHMWPE in water lubrication: the effect of molding temperature

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