Effect of ammonium polyphosphate and acrylic acid on<scp>NaCl</scp>treated electrospun<scp>PLA</scp>microfiber mat

Yoon, Chang Ki; Ko, Se Jun; Jeon, Ji Ho; Lee, Woo Il

doi:10.1002/pen.25483

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…The superinsulation membrane shows structural robustness and resilience to organic degenerative tests, as highlighted in Figure 1b and S9, Supporting Information. As shown in Figure 1, [22][23][24][25][26][27][28][29] this flexible nanofibrils-based superinsulation membrane provides a promising alternative for a number of applications that require high standards of thermal management competencies, including thermal runaway mitigation and heat resistance under continuous solar radiation.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Cellulose Superinsulation Membrane

Luigi

et al. 2023

Adv Eng Mater

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The environment‐friendly components coupled with the ability to mimic the simplicity and originality of nature necessitate advanced sustainable materials with structural capabilities for energy‐efficient applications. The use of feedstock deriving from plant‐based, renewable organic material to produce nanofibril that embodies enhanced insulating properties and high mechanical strength constitutes an efficient development strategy. Herein, a free‐standing, hierarchical superinsulation membrane by leveraging the principle of the bottom‐up method is reported. The electrospun cellulose nanofibrils/aerogel‐based core layer provides exceptional thermal properties with its thermal conductivity of 10.2 mW m−1K−1. The lightweight, flexible, and durable paper‐like membrane features a tensile strength of 11.3 MPa and a bending rigidity in the order of 4.6 cN mm−1. The hydrophobic superinsulation membrane material also exhibits a ΔT of ≈25 °C under continuous sunlight illumination and allows thermal runaway mitigation of rechargeable lithium‐ion batteries. All the aforementioned properties position this hybrid superinsulation membrane as a promising material for energy‐saving thermal management applications.

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Section: Introductionmentioning

confidence: 99%

Hierarchical Cellulose Superinsulation Membrane

Luigi

et al. 2023

Adv Eng Mater

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Bio‐degradable fibrous membranes for oil/water separation by melt electrospinning

Li,

Zhang,

et al. 2024

J of Applied Polymer Sci

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Various electrospun fibrous membranes have been addressed for oil/water separation owing to their advantages of high specific surface ratio, lightweight, and high porosity. However, they are commonly obtained by solution electrospinning of non‐green raw materials, which could cause serious environmental issues. To realize effective oil/water separation, the optimal processing parameters for melt electrospun polylactic acid (PLA) were determined through orthogonal experiments. Subsequently, PLA fibrous films with cellulose nanofiber (CNF) or sodium chloride (NaCl) for oil/water separation were produced via melt electrospinning. The effects of incorporating CNF or NaCl on the physiochemical properties of melt electrospun PLA fibrous membranes were investigated. In contrast to the pure PLA membranes, the obtained PLA/CNF and PLA/NaCl composite membranes exhibit a finer average fiber diameter and an increased porosity. Also, the oil absorption characteristics and oil/water separation abilities of these fibrous membranes were experimentally studied. In contrast to the 84.55% oil/water separation efficiency of melt‐electrospun PLA fibrous membranes, PLA/CNF exhibits the highest oil/water separation efficiency at 93.54%, whereas PLA/NaCl achieves a maximum efficiency of 90.29%. These findings show the applicability of the eco‐friendly PLA‐based melt electrospun fibrous membrane in the treatment of oily wastewater.

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Parameters influencing electrospun nanofiber diameter of polylactide incorporated with cellulose nanofibrils and nanocrystals

Sari,

Kaynak

2024

Journal of Thermoplastic Composite Materials

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The main purpose of this study was to investigate effects of various electrospinning parameters on the morphology and diameter of cellulose nanofibril (CNF) filled polylactide (PLA) nanofibers. For this purpose, first of all effects of three important electrospinning parameters; polymer solution concentration, solution feeding rate and collector distance to feeding tip were studied. Then, effects of using higher amount of CNF, effects of using cellulose nanocrystal (CNC) particles, and effects of adding potassium chloride salt were also investigated. It was observed that when optimum electrospinning parameters were determined, then it was possible to obtain almost “bead-free” morphology and “finest” average diameter of 232 nm for PLA/CNF electrospun fibers. Increasing values of feeding rate and collector distance parameters resulted in bead formation and thicker diameters. On the other hand, increasing CNF amount, using CNC particles and adding KCl salt, all resulted in further decreases in the diameter down to 152 nm; mainly due to increased charge density of the polymer solution. Moreover, in vitro degradation analysis of all types of electrospun nanofiber mats in a simulated body fluid revealed that increasing the immersion period increased their degradation rate in terms of “% weight loss”. It was also observed that, mats with fine diameter fibers had higher degradation rate.

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Effect of ammonium polyphosphate and acrylic acid onNaCltreated electrospunPLAmicrofiber mat

Cited by 3 publications

References 22 publications

Hierarchical Cellulose Superinsulation Membrane

Hierarchical Cellulose Superinsulation Membrane

Bio‐degradable fibrous membranes for oil/water separation by melt electrospinning

Parameters influencing electrospun nanofiber diameter of polylactide incorporated with cellulose nanofibrils and nanocrystals

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