Characterisation and Production of  Poly (Lactic Acid)/Poly(ethylene Glycol) Microfiber via Melt Drawn Spinning Process

Akhir, Nur Atiqah Mohd.; Othman, Marini; Buys, Yose Fachmi; Shaffiar, Norhashimah; Jimat, Dzun Noraini; Shaharuddin, Sharifah Imihezri Syed

doi:10.31436/iiumej.v22i1.1364

Cited by 5 publications

(5 citation statements)

References 2 publications

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“…The alignment of macromolecules of such filaments was low, and the rosin worked as a plasticizer that facilitated the PLA chain's mobility, which improves filament drawability. Such results correlate with the works of other authors [39][40][41][42][43]: that a low plasticizer concentration decreases the linear density of multifilament yarns when used under the same conditions of formation and, consequently, multifilament yarns with lower linear density and diameter are formed (comparing A with B and C). When the draw ration of PLA multifilament yarns is 2.75, the alignment of the macromolecules of filaments is higher and multifilament yarns with a lower linear density and thinner filaments are formed (see Table 2).…”

Section: The Influence Of Rosin On the Linear Density And Mechanical Propertiessupporting

confidence: 91%

“…The alignment of macromolecules of such filaments was low, and the rosin worked as a plasticizer that facilitated the PLA chain's mobility, which improves filament drawability. Such results correlate with the works of other authors [39][40][41][42][43]: that a low The linear density (tex) of melt-spun PLA yarns depends on the different technological parameters (melt temperature, draw, and pressure) [13,34]. If the draw ratios increase, the linear density of the PLA multifilament yarns decrease (34-39%), all other spinning variables remaining constant.…”

Section: The Influence Of Rosin On the Linear Density And Mechanical Propertiessupporting

confidence: 89%

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Formation and Investigation of Mechanical, Thermal, Optical and Wetting Properties of Melt-Spun Multifilament Poly(lactic acid) Yarns with Added Rosins

2022

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One method for adding enhancing properties to textile materials is the insertion of natural ingredients into the textile products during the manufacturing or finishing process. The aim of this research is to investigate the formation of biodegradable melt-spun multifilament Poly(lactic acid) (PLA) yarns with different contents (i.e., 5%, 10%, and 15%) of natural material–rosin, also known as colophony. In this study, multifilament yarns were successfully formed from PLA and a natural substance–pine rosin by melt-spinning them at two different draw ratios (i.e., 1.75 and 2.75). The results indicated that a 1.75 draw ratio caused the formation of PLA and PLA/rosin yarns that were brittle. The presence of rosin (i.e., 5% and 10%) in multifilament yarns decreased the mechanical properties of the PLA/rosin melt-spun multifilament yarns’ tenacity (cN/tex), breaking tenacity (cN/tex), and tensile strain (%) and elongation at break (%) and increased absorbance in the entire UV region spectra. In addition, the melting point and degree of crystallinity decreased and there was an increase in the wetting angle compared with pure PLA multifilament. The investigation of melt-spun yarns with Raman spectroscopy proved the presence of rosin in PLA melt-spun yarns.

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Section: The Influence Of Rosin On the Linear Density And Mechanical Propertiessupporting

confidence: 91%

“…The alignment of macromolecules of such filaments was low, and the rosin worked as a plasticizer that facilitated the PLA chain's mobility, which improves filament drawability. Such results correlate with the works of other authors [39][40][41][42][43]: that a low The linear density (tex) of melt-spun PLA yarns depends on the different technological parameters (melt temperature, draw, and pressure) [13,34]. If the draw ratios increase, the linear density of the PLA multifilament yarns decrease (34-39%), all other spinning variables remaining constant.…”

Section: The Influence Of Rosin On the Linear Density And Mechanical Propertiessupporting

confidence: 89%

Formation and Investigation of Mechanical, Thermal, Optical and Wetting Properties of Melt-Spun Multifilament Poly(lactic acid) Yarns with Added Rosins

2022

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“…The FTIR spectra of FFA lard showed fatty acid peaks at ~1735–1710 cm −1 and 720 cm −1 , which contribute to the source of carboxylate ions, such as stearate [39]. In addition, any band structures observed between 1440 and 1395 cm −1 are almost exclusively indicative of symmetric stretching vibration of the carboxylate group [40]. Furthermore, Coates and Meyers concluded that the strong methyl band between 1415 and 1470 cm −1 and the methylene rocking vibration at 725–720 cm −1 indicate a long‐chain linear aliphatic structure [41].…”

Section: Resultsmentioning

confidence: 99%

Discrimination and authentication of lard blending with palm oil in cosmetic soap formulations

Aziz

Sani

Zakaria

et al. 2023

Intern J of Cosmetic Sci

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Background The employment of Fourier transforms infrared (FT‐IR) spectroscopy combined with chemometrics for determination and quantification of lard in a binary blend with palm oil in a cosmetic soap formulations. Objective To determine and quantify lard as an adulterant in a binary blend with palm oil in a cosmetic soap formulations by FT‐IR and multivariate analysis. Methods Fatty acids in lard, palm oil and binary blends were extracted via liquid–liquid extraction and were subjected to FTIR spectrometry, combined with principal component analysis (PCA) and discriminant analysis (DA) for the classification of lard in cosmetic soap formulations via two DA models: Model A (percentage of lard in cosmetic soap) and Model B (porcine and non‐porcine cosmetic soap). Linear regression (MLR), partial least square regression (PLS‐R) and principal components regression (PCR) were used to assess the degree of adulteration of lard in the cosmetic soap. Findings The FTIR spectrum of palm oil slightly differed from that of lard at the wavenumber range of 1453 cm −1 and 1415 cm −1 in palm oil and lard, respectively, indicating the bending vibrations of CH2 and CH3 aliphatic groups and OH carboxyl group respectively. Both of the DA models could accurately classify 100% of cosmetic soap formulations. Nevertheless, less than 100% of verification value was obtained when it was further used to predict the unknown cosmetic soap sample suspected of containing lard or a different percentage of lard. The PCA for Model A and Model B explained a similar cumulative variability (CV) of 92.86% for the whole dataset. MLR and PCR showed the highest determination coefficient (R2) of 0.996, and the lowest relative standard error (RSE) and mean square error (MSE), indicating that both regression models were effective in quantifying the lard adulterant in cosmetic soap. Conclusion FTIR spectroscopy coupled with chemometrics with DA, PCA and MLR or PCR can be used to analyse the presence of lard and quantify its percentage in cosmetic soap formulations.

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“…The blend of PLA/PCL is also used in electrospinning to make nanofibers [242]. Moreover, Akhir et al [243] used polyethylene glycol (PEG) in the 5-30 wt% range to blend with PLA and make finer fibers. This is attributed to the plasticization effect of PEG.…”

Section: Blend and Composite Fibersmentioning

confidence: 99%

“…Figure 7. Some photos from melt-spun biodegradable polymer fibers: (a) PBS fibers with 30 micron diameter[117], (b) BC-treated PCL fiber[257], (c) PLA fibers containing 5% soy[224], (d) 3D woven structure from PLA fibers derived from PLA/PVA blend[235], (e) PLA/PLA-g-MA/MCC composite fiber[233], (f) PCL monofilament with Snowflake cross-section[198], (g) Hollow fiber of PHB/PCL 70/30[211], (h) PHBH monofilaments one-step-drawing after 24 isothermal crystallization[167], (i) Surgical knot on PHBH monofilament[193], (j) Irregularity (necking point) on drawn r-PLA filament[200], (k) Extracted PLLA nanofibers from PLLA/LDPE[236], (l) Hollow PHB fibers[258], (m) PLA/PEG fibers[243], (n) F-actin (magenta) and cell nuclei on PGA fibers[123], and (o) porous ultrafine PGA fibers by dissolving PLA in spun blend fiber[238]. All the figures were reprinted with permission from the publishers.…”

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confidence: 99%

A Review on Melt-Spun Biodegradable Fibers

Naeimirad,

Krins,

Gruter

2023

Sustainability

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The growing awareness of environmental issues and the pursuit of sustainable materials have sparked a substantial surge in research focused on biodegradable materials, including fibers. Within a spectrum of fabrication techniques, melt-spinning has emerged as an eco-friendly and scalable method for making fibers from biodegradable plastics (preferably bio-based), intended for various applications. This paper provides a comprehensive overview of the advancements in the realm of melt-spun biodegradable fibers. It delves into global concerns related to micro- and nanoplastics (MNPs) and introduces the concept of biodegradable fibers. The literature review on melt-spun biodegradable monofilaments and multifilaments unveils a diverse range of polymers and copolymers that have been subjected to testing and characterization for their processing capabilities and the performance of the resultant fibers, particularly from mechanical, thermal, and biodegradation perspectives. The paper discusses the impact of different factors such as polymer structure, processing parameters, and environmental conditions on the ultimate properties, encompassing spinnability, mechanical and thermal performance, and biodegradation, with schematic correlations provided. Additionally, the manuscript touches upon applications in sectors such as clothing, technical textiles, agriculture, biomedical applications, and environmental remediation. It also spotlights the challenges encountered in the commercialization of these fibers, addresses potential solutions, and outlines future prospects. Finally, by shedding light on the latest developments, challenges, and opportunities in the field, this review endeavors to stimulate further innovation and adoption of biodegradable fibers. It seeks to unlock their potential and contribute to the realization of a more environmentally conscious society.

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Characterisation and Production of Poly (Lactic Acid)/Poly(ethylene Glycol) Microfiber via Melt Drawn Spinning Process

Cited by 5 publications

References 2 publications

Formation and Investigation of Mechanical, Thermal, Optical and Wetting Properties of Melt-Spun Multifilament Poly(lactic acid) Yarns with Added Rosins

Formation and Investigation of Mechanical, Thermal, Optical and Wetting Properties of Melt-Spun Multifilament Poly(lactic acid) Yarns with Added Rosins

Discrimination and authentication of lard blending with palm oil in cosmetic soap formulations

A Review on Melt-Spun Biodegradable Fibers

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