Fabrication of bioinspired superliquiphobic synthetic leather with self-cleaning and low adhesion

Gurera, Dev; Bhushan, Bharat

doi:10.1016/j.colsurfa.2018.02.052

Cited by 41 publications

(26 citation statements)

References 9 publications

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“…For coarse, the coefficient of Sa exceeded that of the polyurethane thickness (equation (1)). This result showing that Sa has more influence than does the polyurethane thickness agrees with previous findings [3].…”

Section: Discussionmentioning

confidence: 99%

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Modeling the relationship between tactile sensation and physical properties of synthetic leather

Chiba

Kuroda

Yamaguchi

2019

Journal of Industrial Textiles

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Surface texture plays an important role in expressing the tactile sensation of leather. The purpose of this study was to develop a combinational panel of physical properties that express the tactile sensations of coarse/fine, uneven/flat, soft/hard, sticky/slippery, and moist/dry. Thirteen synthetic leather samples were fabricated from polyurethane, and eight physical properties were measured as storage modulus, loss modulus, surface roughness, waviness, mean frictional coefficient, apparent contact angle, contact angle hysteresis, and urethane thickness. Thirty adult women performed sensory evaluation of the five tactile sensations by using a semantic differential method based on a five-point scale. The tactile sensation–physical property model for each tactile sensation was explored with logistic regression analysis. Receiver operating characteristic analysis showed that the proposed models based on multiple physical properties clearly distinguish the tactile sensations with higher sensitivity and specificity compared to using a single physical property. The dynamic viscoelasticity contributed to all the tactile sensations when polyurethane was used as synthetic leather. Additionally, the difference of five tactile sensations might be caused by the surface roughness, the mean frictional coefficient, and the polyurethane thickness.

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Section: Discussionmentioning

confidence: 99%

“…The surface structures of synthetic leather are used to design its texture, control its tactile sensation, and improve its water repellency and antifouling ability [1]. The materials used in commercially available synthetic leather are polyurethane and polyvinyl chloride with the former having been introduced more recently [2].…”

Section: Introductionmentioning

confidence: 99%

Modeling the relationship between tactile sensation and physical properties of synthetic leather

Chiba

Kuroda

Yamaguchi

2019

Journal of Industrial Textiles

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“…Leathers have undergone many developments concerning their color and acquired functionalization such as antibacterial, self-cleaning, and UV protection [ 6 , 7 ]. In addition, diverse dyes and dyeing methods have been utilized for sustainable development in the leather industry [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Sonochemical Coloration and Antibacterial Functionalization of Leather with Selenium Nanoparticles (SeNPs)

et al. 2021

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The development of antibacterial coatings for footwear components is of great interest both from an industry and consumer point of view. In this work, the leather material was developed taking advantage of the intrinsic antibacterial activity and coloring ability of selenium nanoparticles (SeNPs). The SeNPs were synthesized and implemented into the leather surface by using ultrasonic techniques to obtain simultaneous coloring and functionalization. The formation of SeNPs in the solutions was evaluated using UV/Vis spectroscopy and the morphology of the NPs was determined by transmission electron microscopy (TEM). The treated leather material (leather/SeNPs) was characterized by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The effects of SeNPs on the coloration and antibacterial properties of the leather material were evaluated. The results revealed that the NPs were mostly spherical in shape, regularly distributed, and closely anchored to the leather surface. The particle size distribution of SeNPs at concentrations of 25 mM and 50 mM was in the range of 36–77 nm and 41–149 nm, respectively. It was observed that leather/SeNPs exhibited a higher depth of shade compared to untreated ones, as well as excellent fastness properties. The results showed that leather/SeNPs can significantly enhance the antibacterial activity against model of bacteria, including Gram-positive bacteria (Bacillus cereus) and Gram-negative bacteria (Pseudomonas aeruginosa, Salmonella typhi and Escherichia coli). Moreover, the resulting leather exhibited low cytotoxicity against HFB4 cell lines. This achievement should be quite appealing to the footwear industry as a way to prevent the spread of bacterial infection promoted by humidity, poor breathability and temperature which promote the expansion of the microflora of the skin.

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“…In recent years, synthetic leather industry has developed rapidly, production has increased sharply, and market competition is fierce. The leather product industry has continuously increased the performance requirement of synthetic leather materials 6–9 . The development of synthetic leather to simulate leather has become an inevitable trend in this field.…”

Section: Introductionmentioning

confidence: 99%

Construction of waste‐collagen modified superfine fiber substrates based on “click” chemistry: Moisture absorption and permeability

Xing

Wang

et al. 2021

J of Applied Polymer Sci

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Superfine fiber synthetic leather is a high‐grade artificial leather product with numerous characteristics and advantages. However, compared with natural leather, it shows poor moisture absorption and moisture permeability, and it gives people a hot and tacky feeling; thus, the improvement of these properties has become a popular topic in the industry. In this paper, the “click” chemistry method was employed to modify the nylon fiber of the superfine fiber synthetic leather base with waste collagen to improve the moisture absorption and permeability of the superfine fiber synthetic leather base, thus enhancing the hygienic performance and wearing comfort of the end products, realizing waste recycling. This study obtained the optimal reaction conditions for the “click” modification of unfigured sea‐island superfine fiber synthetic leather base with collagen methacrylamide. The characterizations by static contact angle measurements, attenuated total reflection infrared spectroscopy, and X‐ray photoelectron spectroscopy analysis confirmed that collagen was successfully grafted onto the surface of the nylon fiber. Compared with the original base, the moisture absorption, and permeability of the base were improved by 602.4% and 43%, respectively. This study shows the theoretical research significance and excellent practical value for the resource utilization of skin collagen waste.

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Fabrication of bioinspired superliquiphobic synthetic leather with self-cleaning and low adhesion

Cited by 41 publications

References 9 publications

Modeling the relationship between tactile sensation and physical properties of synthetic leather

Modeling the relationship between tactile sensation and physical properties of synthetic leather

Simultaneous Sonochemical Coloration and Antibacterial Functionalization of Leather with Selenium Nanoparticles (SeNPs)

Construction of waste‐collagen modified superfine fiber substrates based on “click” chemistry: Moisture absorption and permeability

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