Fabrication and properties of carboxymethyl chitosan/polyethylene oxide composite nonwoven mats by centrifugal spinning

Li, Chen; Huang, Yu Tien; Li, Renhao; Wang, Yun; Xiang, Xin; Zhang, Chunhua; Wang, Dong; Zhou, Yingshan; Liu, Xin; Xu, Weilin

doi:10.1016/j.carbpol.2020.117037

Cited by 32 publications

(12 citation statements)

References 34 publications

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“…Thus, the spinnability range of PEO/AcN solutions for centrifugal fiber spinning at 4000 rpm lies between 2 and 6 wt.%, in agreement with the previous reports (based on other solvents). 55,56 Figure 1F shows that the average diameter of fibers centrifugally-spun under matched conditions increases with polymer concentration. The average fiber diameter was determined by averaging over at least 100 measured values, each obtained using the ImageJ software, by analyzing at least three SEM images for each concentration.…”

Section: Resultsmentioning

confidence: 99%

Centrifugally spun poly(ethylene oxide) fibers rival the properties of electrospun fibers

Merchiers

Narváez

Slykas

et al. 2021

Journal of Polymer Science

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Centrifugal force spinning (CFS), also known as centrifugal spinning, forcespinning, or rotary jet spinning, provides considerably higher production rates than electrospinning (ES), but the more widespread use of CFS as an alternative depends on the ability to produce fibers with robust thermal and mechanical properties. Here, we report the CFS of poly(ethylene oxide) (PEO) fibers made using a spinning dope formulated with acetonitrile (AcN) as the volatile solvent, and we describe the thermal and mechanical properties of the centrifugally-spun fibers. Even though the formation, diameter, and morphology of electrospun and centrifugally-spun PEO fibers are relatively well-studied, the article presents three crucial contributions: the pioneering use of PEO solutions in AcN as spinning dope, characterization of crystallinity and mechanical properties of the centrifugally-spun PEO fibers, and a comparison with the corresponding properties of electrospun fibers. We find that fiber formation occurrs for the chosen CFS conditions if polymer concentration exceeds the entanglement concentration, determined from the measured specific viscosity. Most significantly, the centrifugally spun PEO fibers display crystallinity, modulus, elongation-at-break, and fiber diameter that rival the properties of electrospun PEO fibers reported in the literature.

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Section: Resultsmentioning

confidence: 99%

Centrifugally spun poly(ethylene oxide) fibers rival the properties of electrospun fibers

Merchiers

Narváez

Slykas

et al. 2021

Journal of Polymer Science

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“…Cell viability tests also demonstrated successful results highlighting the fibrous mats here could be employed in wound healing, providing antimicrobial activity whilst promoting cell attachment. More recently, a water-soluble derivative of chitosan, carboxymethyl chitosan was blended with PEO to fabricate nonwoven mats as wound dressings [429]. SEM analysis demonstrated monomodal fibers, ranging from 1.91 µm to 3.22 µm in diameter.…”

Section: Centrifugal Spinningmentioning

confidence: 99%

Recent applications of electrical, centrifugal, and pressurised emerging technologies for fibrous structure engineering in drug delivery, regenerative medicine and theranostics

Mehta

Rasekh

Patel

et al. 2021

Advanced Drug Delivery Reviews

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“…Moreover, inorganic nanofibers can be utilized to make gas sensors that detect the concentration of nitrogen dioxide, ozone, and sulfur dioxide in the air ( Gong and Wan, 2015 ). In addition, it can be also used in biomedical aspects, such as human tissue stents made by polymer ( Heidari et al, 2019 ; Li et al, 2020 ), conducive to the attachment and reproduction of human cells. For the increasing demand of high-quality nanofibers, various techniques have been applied to fabricate multifarious polymer nanofibers, such as self-assembly ( Malfatti and Innocenzi, 2011 ), melt-blown ( Ellison et al, 2007 ), phase separation ( Wang et al, 2010 ), and electrospinning ( Cheng et al, 2010 ; Wang F. et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

“…Composite nanofibers prepared from multicomponent materials also show excellent performance. The carboxymethyl chitosanpolyethylene oxide (CMCS/PEO) composite nonwoven mats by centrifugal spinning were available for wound dressings ( Li et al, 2020 ; Wang Y. et al, 2021 ). Chen et al (2019) researched the polyacrylonitrile/polyethylene glycol phase-change material fibers prepared via centrifugal spinning and found that these nanofibers had good thermophysical properties.…”

Section: Introductionmentioning

confidence: 99%

Orthogonal Optimization Research on Various Nozzles of High-Speed Centrifugal Spinning

Zhang

Liu

et al. 2022

Front. Bioeng. Biotechnol.

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High-speed centrifugal spinning is a burgeoning method of fabricating nanofibers by use of the centrifugal force field. This article studied four different spinning nozzles, which were called stepped nozzle, conical-straight nozzle, conical nozzle, and curved-tube nozzle, to explore the optimal nozzle structures for fabricating nanofibers. According to the principle of centrifugal spinning, the spinning solution flow states within the four nozzles were analyzed, and the solution outlet velocity model was established. Then, the structural parameters of the four kinds of nozzles were optimized with the spinning solution outlet velocity as the test index by combining the orthogonal test and numerical simulation. Based on the orthogonal test results, the influence of nozzle structure parameters on the solution outlet velocity was analyzed, and the best combination of parameters of the centrifugal spinning nozzle structure was obtained. Subsequently, the four kinds of nozzles were used to fabricate nanofibers in the laboratory, under different solution concentration, motor rotation speed, and outlet diameters. Finally, the scanning electron microscope (SEM) was applied to observe the morphology and surface quality of nanofibers. It was found that the surface of nanofibers manufactured by the conical-straight nozzle and curved-tube nozzle was smoother than that by stepped and conical nozzles, and the fiber diameter by the conical-straight nozzle was minimal, followed by curved-tube nozzles, stepped nozzles, and conical nozzles in the diameter distribution of nanofibers.

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Fabrication and properties of carboxymethyl chitosan/polyethylene oxide composite nonwoven mats by centrifugal spinning

Cited by 32 publications

References 34 publications

Centrifugally spun poly(ethylene oxide) fibers rival the properties of electrospun fibers

Centrifugally spun poly(ethylene oxide) fibers rival the properties of electrospun fibers

Recent applications of electrical, centrifugal, and pressurised emerging technologies for fibrous structure engineering in drug delivery, regenerative medicine and theranostics

Orthogonal Optimization Research on Various Nozzles of High-Speed Centrifugal Spinning

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