Adhesion force measurements between deep-sea soil particles and metals by in situ AFM

Ma, Wenbo; Qi, Cailing; Liu, Q.; Ding, Yanhuai; Zhu, W.

doi:10.1016/j.clay.2017.08.011

Cited by 20 publications

(7 citation statements)

References 21 publications

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“…This makes the capillary force less sensitive to the irregular shape of the particle or the surface roughness of the particle and contact surface. It was reported earlier that the contact radius is a key factor that influences the adhesion force [13,15]. In the present study, the adhesion forces were mainly composed of van der Waals and capillary forces.…”

Section: Measurement Of Adhesion Force Between Coal Dust Particles An...supporting

confidence: 50%

“…Atomic force microscopy (AFM; Dimension ICON, Bruker, Billerica, MA, USA) was employed to investigate the adhesion force of individual coal dust particles to fused silica in situ. This experimental method has been widely adopted by other researchers [13,24]. The coal dust adhered to the tip-less cantilever probes (TL-FM-SPL, Nanosensors, Erlangen, Germany) before the adhesion force test, as illustrated in Figure 2.…”

Section: Methods Of Single Coal Dust Adhesion Force Testmentioning

confidence: 99%

“…The adhesion of small particles to materials exists in multiple domains, such as the photovoltaic industry [9,10], the food industry [11], the pharmaceutical industry [12], marine mining [13,14], the nuclear industry [15], and indoor air quality monitoring [16], and has been extensively studied. Moutinho et al [9] studied the effect of surface roughness and relative humidity (RH) on the adhesion force between dust particles and solar glass using atomic force microscopy (AFM).…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that the adhesion force between the particles and the two different surfaces linearly increased with the increase in particle size, and the roughness of the surface had a significant impact, as it affected the true contact area. Ma et al [13,14] studied the adhesion force between particles of deep-sea soil and metals using in situ AFM, and the results indicated that the 5052 aluminum alloy had better self-cleaning properties than pure titanium and titanium alloys and that there existed a critical surface roughness that corresponded to the minimum adhesion force. Sun et al [15] studied the adhesion of graphite particles with rough walls of gas-cooled reactors.…”

Section: Introductionmentioning

confidence: 99%

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Adhesion Behavior of Underground Coal Dust with Fused Silica: Effects of Relative Humidity and Particle Size

Zhou,

Yang,

Shang

2024

Processes

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Coal dust particles adhering to a camera lens reduce its light transmittance, which deteriorates the performance of the camera and may lead to serious problems with mining equipment that requires visual ability. Aiming at improving coal dust removal and cleaning technologies, the adhesion behavior of coal dust with fused silica is studied here. Experiments were conducted from microscopic and statistical points of view. The adhesion force between a single coal dust particle and fused silica is tested using atomic force microscopy (AFM), and the number and size distribution of large amounts of coal dust particles on fused silica are tested using a home-made adhesion experimental platform and image processing method. The results show that the adhesion force increases at high relative humidity (RH); it is dominated by van der Waals forces at low RH and capillary forces at high RH. The fused silica glass surface is predominantly covered by small-sized coal dust particles, and the total number of particles as well as the proportion of large-sized particles increases with RH. The theoretical values of van der Waals and capillary forces are significantly larger than the experimental values, owing to the irregular shape and roughness of the surface of the coal dust.

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Section: Measurement Of Adhesion Force Between Coal Dust Particles An...supporting

confidence: 50%

Section: Methods Of Single Coal Dust Adhesion Force Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Adhesion Behavior of Underground Coal Dust with Fused Silica: Effects of Relative Humidity and Particle Size

Zhou,

Yang,

Shang

2024

Processes

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“…In a recent study using custom grain-on-tip methods similar to those explored in this paper, Ma et al (2017) attached deep sea soil particles to an AFM tip to acquire force curves between the particles and different alloy surfaces. Four metallic surfaces, namely aluminum alloy (5052), titanium alloy (STi80), pure titanium (TA2), and titanium alloy (TC4) were specifically prepared to compare the influence of composition and surface roughness on adhesion.…”

Section: Investigating Adhesive Forces Between Small Interacting Grainsmentioning

confidence: 99%

AFM Force Measurements to Explore Grain Contacts with Relevance for Planetary Materials

2022

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Most small asteroids are defined as “rubble piles” or bodies with zero tensile strength and large bulk porosity. The cohesive forces that hold them together act at the grain scale, and their magnitude is often estimated from similar materials when used in simulations. Improving the accuracy of predictions of asteroid strengths requires suitable laboratory measurements of relevant materials, as well as increasing the availability of materials from sample return. Atomic force microscopy (AFM) is well suited for force measurements relative to particle–particle interactions. In this work, we use AFM force measurements to evaluate the cohesive forces that act between micron-sized grains. We investigate the effect of the sizes of the interacting grains of JSC-1 lunar simulant using three sample sizes (<45, 75–125, and 125–250 μm) and three spherical AFM tip diameters (2 μm, 15 μm, and 45 μm). In all cases, adhesion forces were larger at ambient relative humidity (RH), where the water layer on the surface of the grains is more prominent, creating a larger meniscus between the tip and the grain upon contact. We observed weaker adhesion with larger grain/tip size, which can be attributed to the changing contact area between the samples and the tips. We expect that our approach will pave the way to a better understanding of regolith surface properties such as adhesion and cohesion and provide suitable input for models that can be used to predict the evolution of asteroids and their particle behaviors.

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An efficient method to prepare high grafting montmorillonite with silane coupling agent and its improvements for styrene butadiene rubber composites

Peng,

Li,

Wang

et al. 2024

Polymer Composites

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The quantity of silane chemically bonded to the organoclay's surface significantly influences its dispersion within the polymer matrix, as well as the interfacial interaction. This research presents a groundbreaking method for enhancing the surface properties of montmorillonite (Mt) through the use of γ‐(methacryloxy) propyl trimethoxy silane (KH570) coupled with acid treatment, leading to increased grafting efficiency. Confirmed by FT‐IR, TGA, and XRD, the process effectively bonds organo‐silanes to Mt and achieves a high grafting level of 1.59 mequiv/g. Utilizing a latex compounding method, Mt/rubber nanocomposites are synthesized with thoroughly modified clay for peak performance. Dispersion and interfacial properties are evaluated through XRD, TEM, AFM, and DMTA. The findings reveal that the well‐modified Mt is an exceptional filler, ensuring a high level of dispersion and robust interaction with the rubber matrix. This synergy translates to a marked improvement in the mechanical properties of the composite, with notable enhancements observed in both tensile strength and elongation at break of 9.7 MPa and 1141%, respectively. This innovative approach to the graft modification of clays presents a potent method, offering the potential for the industrial‐scale manufacture of high‐performance clay‐based composites.Highlights A processing method for preparing high grafting clay with a silane coupling agent. Functionalized clay presents better nano‐dispersion in the polymeric matrix. Strong covalent interfacial interaction is constructed between clay and rubber. Tensile Strength and elongation at break of the composites are obliviously improved.

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Adhesion force measurements between deep-sea soil particles and metals by in situ AFM

Cited by 20 publications

References 21 publications

Adhesion Behavior of Underground Coal Dust with Fused Silica: Effects of Relative Humidity and Particle Size

Adhesion Behavior of Underground Coal Dust with Fused Silica: Effects of Relative Humidity and Particle Size

AFM Force Measurements to Explore Grain Contacts with Relevance for Planetary Materials

An efficient method to prepare high grafting montmorillonite with silane coupling agent and its improvements for styrene butadiene rubber composites

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