Effect of alkali treatment of lower concentrations on the structure and tensile properties of Pakistan’s coarse cotton fibre

Azeem, Faisal; Mao, Ningtao; Faisal, Saira

doi:10.1080/00405000.2019.1620501

Cited by 4 publications

(2 citation statements)

References 23 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our results are similar to those of Cordeiro et al (2014), who reported that untreated fibers from mango's tegument were packed due to the content of hemicelluloses and lignin that were partially removed with alkali treatment, promoting the breakdown of the fibers and pulp exposure [15]. In contrast, it is reported that alkali-treated cotton fibers presented a smoother surface than treated mango tegument fibers [56].…”

Section: Discussionsupporting

confidence: 88%

Production and Characterization of Cellulosic Pulp from Mango Agro-Industrial Waste and Potential Applications

et al. 2023

View full text Add to dashboard Cite

The growing demand for cellulosic pulp presents an opportunity to explore alternatives to this material, focusing on utilizing agro-industrial residues. Mango’s tegument is a rich source of cellulose, making it a valuable raw material for manufacturing single-use articles or blends with biopolymers. In this sense, employing conventional alkaline and acid chemical treatments, the mango’s tegument was treated to obtain cellulosic pulp. The teguments were subjected to treatment with alkaline solutions (2% and 4% NaOH w/v) at 80 °C for 1 or 2 h or with an acetic acid solution (1:1 or 1:2 CH3COOH:H2O2) at 60–70 °C for 1 or 2 h. After treatment, an evaluation was conducted to assess the yield, color, chemical analysis, and structural, thermal, and morphological properties. The alkali treatments produced cellulosic pulps with a light color with 37–42% yield and reduced hemicellulose content. The acid treatments produced orange–brown cellulosic pulp with 47–48% yield and higher hemicellulose content. The acid pulps were thermally more stable (maximum decomposition at 348–357 °C) than the alkali pulps (maximum decomposition at 316–321 °C). The crystallinity index demonstrated that both treatments increased the crystallinity of the cellulose pulps compared with the untreated tegument. The thermal stability of cellulosic pulp at the processing temperatures of disposable tableware (50–120 °C) revealed that plates, bowls, trays, and cups could be produced. Another potential application is as a component of blends with biopolymers to make straws or rigid food packaging (trays) with reinforced structures.

show abstract

Section: Discussionsupporting

confidence: 88%

Production and Characterization of Cellulosic Pulp from Mango Agro-Industrial Waste and Potential Applications

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The alkaline process enhances the roundness of the surrounding fiber strand at the peripheral regions. As a result of penetration of the alkaline solution, the whole fiber strand is swollen, and the inner spiral formation of fiber got a more rounded shape and space [31] (Fig. 5a).…”

Section: Pani Impregnation and Increase In Electroconductive Behaviormentioning

confidence: 99%

Surface Morphology and Thermo-Electrical Energy Analysis of Polyaniline (PANI) Incorporated Cotton Fabric

Parvez,

Rahman,

Samykano

et al. 2024

ENERGY

View full text Add to dashboard Cite

With the exponential development in wearable electronics, a significant paradigm shift is observed from rigid electronics to flexible wearable devices. Polyaniline (PANI) is considered as a dominant material in this sector, as it is endowed with the optical properties of both metal and semiconductors. However, its widespread application got delineated because of its irregular rigid form, level of conductivity, and precise choice of solvents. Incorporating PANI in textile materials can generate promising functionality for wearable applications. This research work employed a straightforward in-situ chemical oxidative polymerization to synthesize PANI on Cotton fabric surfaces with varying dopant (HCl) concentrations. Pre-treatment using NaOH is implemented to improve the conductivity of the fabric surface by increasing the monomer absorption. This research explores the morphological and structural analysis employing SEM, FTIR and EDX. The surface resistivity was measured using a digital multimeter, and thermal stability is measured using TGA. Upon successful polymerization, a homogenous coating layer is observed. It is revealed that the simple pre-treatment technique significantly reduces the surface resistivity of Cotton fabric to 1.27 kΩ/cm with increasing acid concentration and thermal stability. The electro-thermal energy can also reach up to 38.2°C within 50 s with a deployed voltage of 15 V. The modified fabric is anticipated to be used in thermal regulation, supercapacitor, sensor, UV shielding, antimicrobial and other prospective functional applications.

show abstract

Biofibers and Their Composites for Industrial Applications

Söylemez

Özer²,

Özer

2022

Handbook of Bioplastics and Biocomposites Engineering Applications

View full text Add to dashboard Cite

Effect of alkali treatment of lower concentrations on the structure and tensile properties of Pakistan’s coarse cotton fibre

Cited by 4 publications

References 23 publications

Production and Characterization of Cellulosic Pulp from Mango Agro-Industrial Waste and Potential Applications

Production and Characterization of Cellulosic Pulp from Mango Agro-Industrial Waste and Potential Applications

Surface Morphology and Thermo-Electrical Energy Analysis of Polyaniline (PANI) Incorporated Cotton Fabric

Biofibers and Their Composites for Industrial Applications

Contact Info

Product

Resources

About