Study of the contact angle of water droplet on the surface of natural K-feldspar with the combination of Ar+ polishing and atomic force microscopy scanning

Rao, Shihang; Deng, Yajun; Cai, Wenjiu; Li, Zhenchao; Ye, Jian‐Liang; Lu, Hailong

doi:10.1016/j.ces.2021.116705

Cited by 5 publications

(3 citation statements)

References 34 publications

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“…Silane layer on mineral surface enhanced hydrophobicity and this observation was found to be in agreement with the literature findings related to contact angle of FLS and QRZ minerals. [37][38][39][40][41][42][43][44]…”

Section: Surface Characteristics Of Mineralsmentioning

confidence: 99%

Contribution of surface silanization process on mechanical characteristics of TPU‐based composites involving feldspar and quartz minerals

Bouzmane

Tirkes

Yılmaz

et al. 2022

Vinyl Additive Technology

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In this study, quartz and feldspar powders were surface treated using a silane coupling agent to achieve a more compatible mineral surface with the polymer matrix. Details of surface characteristics of minerals were examined by energydissipative X-ray spectroscopy, contact angle measurements, and infrared spectroscopy. Thermoplastic polyurethane-TPU was compounded with minerals using the melt-blending technique. Mechanical, thermo-mechanical, meltflow, and morphological characterizations of TPU and relevant composites were performed by utilizing tensile and Shore hardness tests, dynamic mechanical analysis (DMA), melt flow index (MFI) measurements, and scanning electron microscopy (SEM), respectively. Water repellency of TPU and composites were also evaluated experimentally. Effects of surface treatments were discussed by comparing the results of composites filled with pristine and modified minerals. Results revealed that enrichment of quartz and feldspar surfaces confer mechanical and thermo-mechanical performance of composites. Mineral inclusions caused no drastic changes to the MFI parameter of TPU. The silane layer on the mineral surface displayed a barrier effect to water uptake of composites. Homogeneous dispersion and improved interfacial adhesion of mineral particles to the TPU phase were confirmed with help of SEM observations. Quartz exhibited slightly higher performance thanks to its silicarich composition. The findings of this research exhibited the considerable influence of the silane layer on the mineral surface on the mechanical performance of TPU-based composites.

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Section: Surface Characteristics Of Mineralsmentioning

confidence: 99%

Contribution of surface silanization process on mechanical characteristics of TPU‐based composites involving feldspar and quartz minerals

Bouzmane

Tirkes

Yılmaz

et al. 2022

Vinyl Additive Technology

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“…Heterogeneity causes a large variability in surface roughness evaluation, 42 which is a long-term concern that researchers must solve. 43 In this paper, in situ contact angle measurements were made by AFM and scanning electron microscopy (SEM) methods to reveal the wettability alteration by electric field exposure from the perspective of surface roughness. From a pore-scale perspective, AFM and SEM techniques were employed to determine the mechanism of the change in the surface roughness in the intragranular and intergranular regions.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Heterogeneity causes a large variability in surface roughness evaluation, which is a long-term concern that researchers must solve . In this paper, in situ contact angle measurements were made by AFM and scanning electron microscopy (SEM) methods to reveal the wettability alteration by electric field exposure from the perspective of surface roughness.…”

Section: Introductionmentioning

confidence: 99%

Insights into the Relationship between Wettability and Surface Roughness in Tight Reservoirs from a Pore-Scale View: Effect of Electric Field

et al. 2023

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The surface roughness of reservoirs detected by AFM is typically employed to predict the wettability of a sandstone reservoir. However, the resulting predictive relationship represents the surface roughness in only the intragranular region due to the limitations of the AFM probe. For a long time, the detection of surface roughness in the intergranular region, especially that of a sandstone reservoir treated with an external stimulus, has not attracted much attention. This paper proposed an in situ AFM and SEM method for measuring the surface roughness in the different regions of tight sandstone treated with an electric field, further revealing the wettability alteration from a pore-scale perspective. The results show that the electric field exposure increases the surface roughness in the intragranular and intergranular regions, synthetically strengthening the water-wetness of tight sandstone. Notably, pore parameter changes in the intragranular region differ from those in the intergranular region. Pore length decreases in the intragranular region and also in the intergranular region, and pore number remains unchanged in the intragranular region but decreases in the intergranular region. Moreover, pore depth increases in the intragranular region but decreases in the intergranular region. The movement of clay minerals induced by the electric field accounts for the difference in the roughness alteration in the two regions. This paper sheds light on new ways to approach surface roughness measurement that can greatly improve the understanding of the relationship between surface roughness and wettability of reservoirs. In addition, the work presented in this paper may be vital in determining the surface roughness of homogeneous materials treated by external stimulation.

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Round-robin testing of commercial two-photon polymerization 3D printers

Cantoni,

Maher,

Bosler

et al. 2023

Additive Manufacturing

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Study of the contact angle of water droplet on the surface of natural K-feldspar with the combination of Ar+ polishing and atomic force microscopy scanning

Cited by 5 publications

References 34 publications

Contribution of surface silanization process on mechanical characteristics of TPU‐based composites involving feldspar and quartz minerals

Contribution of surface silanization process on mechanical characteristics of TPU‐based composites involving feldspar and quartz minerals

Insights into the Relationship between Wettability and Surface Roughness in Tight Reservoirs from a Pore-Scale View: Effect of Electric Field

Round-robin testing of commercial two-photon polymerization 3D printers

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