A study on the interdependence of fabric pore size and its mechanical and comfort properties

Rehman, Abdur; Jabbar, Madeha; Umair, Muhammad; Jabbar, Mariam; Shaker, Khubab

doi:10.1080/15440478.2018.1437861

Cited by 10 publications

(13 citation statements)

References 14 publications

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“…As reported in the literature, the air permeability is largely determined by the porosity of the fabric, which facilitates the airflow through the fabric. 31 As shown in the SEM images, Figure 3, the PANI and ND/ BDND coating is mostly present on the surface of fiber without blocking the pores within the fibrous structure. Therefore, the air permeability of the treated wool fabric was the same (within the experimental error) as that of the untreated wool fabric.…”

Section: ■ Results and Discussionmentioning

confidence: 89%

“…It was observed that the air permeability of all the treated samples was maintained fairly as compared to the untreated sample, Figure b. As reported in the literature, the air permeability is largely determined by the porosity of the fabric, which facilitates the airflow through the fabric . As shown in the SEM images, Figure , the PANI and ND/BDND coating is mostly present on the surface of fiber without blocking the pores within the fibrous structure.…”

Section: Resultsmentioning

confidence: 99%

“…The test was conducted by dropping a standard saline solution (9.0 g/L NaCl) on the fabric specimen of 8 cm × 8 cm size for 20 s. Then, the liquid transfer data measurements were automatically monitored and recorded until a measuring time of 120 s. The air permeability of the fabric was measured by an air permeability tester (M021S air permeability tester, SDL Atlas Pty Ltd, England) according to the EN ISO 9237:1995 standard. The airflow through an orifice area of 5 cm 2 is measured at a constant pressure drop of 100 Pa across the fabric …”

Section: Experimental Sectionmentioning

confidence: 93%

“…The airflow through an orifice area of 5 cm 2 is measured at a constant pressure drop of 100 Pa across the fabric. 31 The abrasion resistance of the fabric samples was checked using a Martindale abrasion tester (IDM Instrument Pty Ltd., Hallam, Australia) following the ASTM D4966-12(2016) standard. The specimens were cut at 38 mm diameter and rubbed against an abradant (standard fabric) at a pressure of 9 kPa.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

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Multifunctional Smart Fabrics through Nanodiamond-Polyaniline Nanocomposites

Rehman

Houshyar

Reineck

et al. 2020

ACS Appl. Polym. Mater.

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Durable, sensitive and wearable electronics are highly desirable for monitoring everything from vital signs to athletic performance. However, electronic textiles with excellent functions, stability, comfort, and durability against washing/rubbing remain a big challenge. Herein, a coating containing nanocomposites of polyaniline (PANI) with nanodiamond (ND) was applied to the surface of wool fabrics through an in situ polymerization technique. The nanocomposite fabrics with PANI-ND demonstrated high sensitivity, enhanced durability, and excellent mechanical properties without compromising the inherent properties of textiles such as comfort and breathability. Wool fabrics were treated with aniline, aniline-ND, and aniline-boron doped ND (BDND) to investigate the molecular interaction between ND/BDND and PANI and their effects on the final properties, such as comfort, mechanical and electrochemical properties of the treated fabric. The PANI-ND coated fabrics showed sheet resistances below 10 kΩ/sq and up to a 2-fold decrease in response to monotonically increasing and cyclic mechanical strains compared with the PANI-coated fabric. Wool fabric coated with PANI-ND is a sensitive sensor that can withstand strain up to 100%, which is remarkable for delicate fibers. The developed sensor can detect human motion, such as bending of a finger to different angles. The moisture properties of the fabric coated with PANI-ND improved significantly along with durability against washing and abrasion without affecting its breathability. This work provides insights into developing highly sensitive multifunctional electronic textiles (such as wearable sensors) without compromising the intrinsic properties of textiles.

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Section: ■ Results and Discussionmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Experimental Sectionmentioning

confidence: 93%

Section: ■ Experimental Sectionmentioning

confidence: 99%

See 2 more Smart Citations

Multifunctional Smart Fabrics through Nanodiamond-Polyaniline Nanocomposites

Rehman

Houshyar

Reineck

et al. 2020

ACS Appl. Polym. Mater.

Self Cite

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“…For a given surface area on the face masks, the density of the pores equivalently represents the capability of face masks to block the particles. According to the investigation in [9] for 10 cotton woven fabrics, the pore size varies from 19 µ m to 115 µ m. Hence, the face masks, used in this study, are made from cotton woven fabrics, and the corresponding pore size is selected from this range. It is well known that respiratory droplets and aerosols are the major virus carriers.…”

Section: Methodsmentioning

confidence: 99%

How Efficient Can Non-Professional Masks Suppress COVID-19 Pandemic?

Chen

Dong

2020

Preprint

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The coronavirus disease 2019 (COVID-19) pandemic is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which can be transmitted via respiratory secretions. Since there are currently no specific therapeutics or vaccines available against the SARS-CoV-2, the commen nonpharmaceutical interventions (NPIs) are still the main measures to curb the COVID-19 epidemic. Face mask wearing is one important measure to suppress the pandemic. In order to know how efficient is face mask wearing in reducing the pandemic even with low efficiency non-professional face masks, we exploit physical abstraction to model the non-professional face masks made from cotton woven fabrics and characterize them by a parameter virus penetration rate (VPR)γ. Monte Carlo simulations exhibit that the effective reproduction number R of COVID-19 or similar pandemics can be approximately reduced by factor γ4 with respect to the basic reproduction number R0,if the face masks with 70% <γ< 90% are universally applied for the entire network. Furthermore, thought experiments and practical exploitation examples in country-level and city-level are enumerated and discussed to support our discovery in this study and indicate that the outbreak of a COVID-19 like pandemic can be even suppressed by the low efficiency non-professional face masks.

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