Mathematical investigation of the thermal conductivity of fabrics using thermal equation

Islam, Shariful; Alam, Shaikh Md. Mominul; Akter, Shilpi

doi:10.1016/j.matpr.2020.09.411

Cited by 8 publications

(5 citation statements)

References 34 publications

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“…Therefore, it is important to investigate the thermal conductivity of porous acoustic absorbers. The ability of textile materials to transport heat from their surface to another surface is known as thermal conductivity [24].…”

Section: Introductionmentioning

confidence: 99%

Surface Coating of Needle-Punched Nonwovens with Meltblown Nonwovens to Improve Acoustic Properties

Sivri

Haji

2022

Coatings

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Unlike the term sound insulation, which means reducing the penetration of noise into other areas, sound absorption means reducing the reflection and energy of the sound on the surface. It has become a highly noticed issue in recent years because the noise in our daily life is increasing day by day, and it causes some health and comfort disorders. In many areas, textiles have been used for acoustics control and noise absorption purposes. The purpose of this work is to determine the most effective media for sound absorption performance and its relation to thermal conductivity from needle-punched nonwoven, meltblown nonwoven and hybrid forms in different arrangements of these fabrics. To provide comparable samples, both needle-punched nonwoven and meltblown nonwoven samples were produced from 100% Polypropylene fibres. According to sound absorption tests, the hybrid-structured sample having a composition similar to the needle-punched nonwoven sample placed at the bottom of our study, while the meltblown nonwoven sample placed as a face layer outperformed the rest of the samples in terms of sound absorption and thermal conductivity. ‘Meltblown only’ samples had remarkably higher sound absorption efficiency than most of the samples, while the ‘needle-punched nonwoven only’ sample had the lowest sound absorption efficiency in all frequencies.

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Section: Introductionmentioning

confidence: 99%

Surface Coating of Needle-Punched Nonwovens with Meltblown Nonwovens to Improve Acoustic Properties

Sivri

Haji

2022

Coatings

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“…Similarly, other research studies [28][29][30] have established that effective thermal conductivity is determined by factors such as the properties of the particles and matrix, and the microstructure of a composite polymer. Effective thermal conductivity can be calculated analytically [31,32], assessed through numerical simulation [33,34] or measured experimentally [35,36]. In this paper, an experimental method was used to measure the effective thermal conductivity of multi-hollowed polypropylene board using the DTC-25 and hot box testing.…”

Section: Introductionmentioning

confidence: 99%

Experimental Thermal Conductivity Measurement of Hollow-Structured Polypropylene Material by DTC-25 and Hot Box Test

Osaze,

Khanna

2023

Buildings

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In this study, experimental measurements of porous polypropylene (PP) using the DTC-25 TA laboratory equipment and a hot box test are compared. The thermal conductivity of building materials indicates their insulation capability. Excellent building materials will have a lower thermal conductivity value as well as other building insulator performance metrics. While results show that increasing the volume fraction of fluid in porous PP has an inverse association with the thermal conductivity of the material, as predicted by porous media theories, there is a marked difference in the measured values of thermal conductivity using the two methods. The thermal conductivity values of porous PP from the DTC-25 and the hot box test were 0.21 and 0.0033 W/mK, respectively. The difference in the thermal conductivity values was due to the misapplication of the Fourier’s guarded heat flow model in the DTC-25 device to a convective fluid porous medium.

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“…These bonds are strong enough and establish very good colorfastness properties [11]. These dyes are so-called reactive dyes since they have reactive groups in their structure and react chemically with the fiber molecules to form covalent bonds between the reactive group and terminal -OH groups of cellulose fiber [12]. Covalent bonding is stronger than hydrogen bonding and ionic bonding; as a consequence, the reactive group turns into an integral part of the fiber molecules [13].…”

Section: Introductionmentioning

confidence: 99%

Influence of Plain, Twill, and Satin Weave Structures on the Optimum Colorfastness Properties of Reactive Dyes

Islam

2021

Trends Sci

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The objective of this work is to study the influence of the plain, twill and satin weave structures on the colorfastness properties of reactive dyes. From the results, it can be concluded that plain weave fabric showed the optimum colorfastness properties due to its compact interlacement structure compared to twill and satin weave fabrics. Three types of plain, twill, and satin weave fabrics of different weave structures and weights (g/m2) were used in this research. The dyes, auxiliaries, and chemicals were applied, and the colorfastness tests were carried out in accordance with the test methods provided by ASTM and AATCC standards. Color strength (K/S) values were obtained using a reflectance spectrophotometer. A projection microscope was used to take cross sectional diagrams of the yarns for assessment. FTIR instrument transmitted infrared radiation to the dyed samples of up to a few microns to measure the spectroscopy within the visible spectral province with the maximum infrared ray (IR) peak values. The peak values of the FTIR device assured the presence of colorant or chromophore existing in the dyestuffs which were liable to expose the best colorfastness properties. This research is experimentally-based, and the findings are useful to personnel involved in cellulose fabric dyeing with reactive dyes and to the control of color properties. This research opens potential ways for scholars to advance study in this field.

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Mathematical investigation of the thermal conductivity of fabrics using thermal equation

Cited by 8 publications

References 34 publications

Surface Coating of Needle-Punched Nonwovens with Meltblown Nonwovens to Improve Acoustic Properties

Surface Coating of Needle-Punched Nonwovens with Meltblown Nonwovens to Improve Acoustic Properties

Experimental Thermal Conductivity Measurement of Hollow-Structured Polypropylene Material by DTC-25 and Hot Box Test

Influence of Plain, Twill, and Satin Weave Structures on the Optimum Colorfastness Properties of Reactive Dyes

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