A new kind of resin-based wet friction material: Non-woven fabrics with isotropic fiber networks as preforms

Fu, Yewei; Zhou, Le; Yin, Tao; Luo, Zhongyao; Li, Hejin; Qi, Lehua

doi:10.1007/s40544-019-0326-y

Cited by 6 publications

(3 citation statements)

References 37 publications

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“…Experimental studies focus mainly on the tribological behaviour of new friction materials [35][36][37][38][39] such as non-woven fabrics [40] or environmentally friendly friction materials [41], which have interesting properties. The tests are carried out on standard laboratory devices [6] or real tests in the automotive industry [3] and show, for example, the influence of the sliding speed on the coefficient of friction [42].…”

Section: Introductionmentioning

confidence: 99%

Average and Local Effect of Thermal Fatigue on the Coefficients of the Thermal Expansion of a Complex Continuous Composite Fibre Used for Car Clutch Facing: A Multi-Technique Study

Flament,

Berthel,

Salvia

et al. 2023

Materials

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The clutch facing is a complex organic matrix composite in dry clutch systems. When the clutch engages, there is a sliding contact between the clutch facing and the mating surfaces, resulting in temperature increases of up to 300 °C. These thermal cycles activate several mechanisms that can have consequences on such material: cracking and, more generally, the ageing of the polymer. The thermomechanical properties of the material therefore evolve according to the number of thermal cycles. This study focused on investigating the local and average evolution of the coefficients of thermal expansion (CTE) of clutch facing as a function of thermal cycles. Several techniques were employed, including image stereocorrelation for determining the CTE, Dynamic Mechanical Analysis (DMA) tests for monitoring the ageing of the material and acoustic emission for highlighting the damage. The results showed that the average CTE decreased as a function of the temperature and the number of loading cycles, while locally, it increased in some areas and decreased in others. These differences appear to be the result of material heterogeneity (actual yarn tracing, etc.) and interaction between cracking and ageing mechanisms in the polymer matrix. Indeed, thermal cycling led to cracking and additional crosslinking, which is influenced by ageing conditions.

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Section: Introductionmentioning

confidence: 99%

Average and Local Effect of Thermal Fatigue on the Coefficients of the Thermal Expansion of a Complex Continuous Composite Fibre Used for Car Clutch Facing: A Multi-Technique Study

Flament,

Berthel,

Salvia

et al. 2023

Materials

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“…Paper-based friction materials are typically synthesized via wet paper-making methods, using reinforced fibers and friction modifiers as the main raw materials to create preforms, which are then impregnated with binders and cured via hot pressing [1][2][3][4]. As a type of composite, paper-based friction materials can exhibit excellent performance not afforded by a single component through performance coupling among different components, e.g., a high and stable dynamic friction coefficient (μ d ), high torque transmission ability, low friction noise, and high wear resistance [5].…”

Section: Introductionmentioning

confidence: 99%

“…Fig 4. Infrared spectra of (a) F1, (b) F2, (c) F3, and (d) F4 before and after decomposition of foaming agent.…”

mentioning

confidence: 99%

Optimization of pore structure and wet tribological properties of paper-based friction materials using chemical foaming technology

Fei

Zhou

et al. 2021

Friction

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Paper-based friction materials are porous materials that exhibit anisotropy; they exhibit random pore sizes and quantities during their preparation, thereby rendering the control of their pore structure difficult. Composites with different pore structures are obtained by introducing chemical foaming technology during their preparation to regulate their pore structure and investigate the effect of pore structure on the properties of paper-based friction materials. The results indicate that the skeleton density, total pore area, average pore diameter, and porosity of the materials increase after chemical foaming treatment, showing a more open pore structure. The addition of an organic chemical foaming agent improves the curing degree of the matrix significantly. Consequently, the thermal stability of the materials improves significantly, and the hardness and elastic modulus of the matrix increase by 73.7% and 49.4%, respectively. The dynamic friction coefficient increases and the wear rate is reduced considerably after optimizing the pore structure. The wear rate, in particular, decreases by 47.7% from 2.83 × 10−8 to 1.48 × 10−8 cm3/J as the foaming agent content increases. Most importantly, this study provides an effective method to regulate the pore structure of wet friction materials, which is conducive to achieving the desired tribological properties.

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Numerical simulation and experimental investigation on the thermal-fluid-solid multi-physical field coupling characteristics of wet friction pairs considering cavitation effect

Wang,

Zhang,

Wang

et al. 2025

Applied Thermal Engineering

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A new kind of resin-based wet friction material: Non-woven fabrics with isotropic fiber networks as preforms

Cited by 6 publications

References 37 publications

Average and Local Effect of Thermal Fatigue on the Coefficients of the Thermal Expansion of a Complex Continuous Composite Fibre Used for Car Clutch Facing: A Multi-Technique Study

Average and Local Effect of Thermal Fatigue on the Coefficients of the Thermal Expansion of a Complex Continuous Composite Fibre Used for Car Clutch Facing: A Multi-Technique Study

Optimization of pore structure and wet tribological properties of paper-based friction materials using chemical foaming technology

Numerical simulation and experimental investigation on the thermal-fluid-solid multi-physical field coupling characteristics of wet friction pairs considering cavitation effect

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