Preparation of melamine microfibers by reaction electrospinning

Hang, Zusheng; Tan, Linghua; Cao, Xiaomiao; Ju, Fa-Yin; Ying, Sanjiu; Xu, Feigao

doi:10.1016/j.matlet.2011.01.010

Cited by 21 publications

(16 citation statements)

References 13 publications

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“…Introduction of new functional groups to the amine groups provides additional properties such as new functional groups, surface charge control, and tunable hydrophilic/hydrophobic characteristics . Therefore, many researchers have paid attention to amine‐based polymers, such as polyethyleneimine (PEI), chitosan, melamine, and so on. In recent years, among the amine‐based polymers PEI has drawn special attention due to its superior properties for DNA transfection and CO 2 capture .…”

Section: Introductionmentioning

confidence: 99%

Poly ionic liquid cryogel of polyethyleneimine: Synthesis, characterization, and testing in absorption studies

Şahiner

Demirci

2016

J of Applied Polymer Sci

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Here, we report the synthesis of polyethyleneimine (PEI) cryogels for the first time via cryopolymerization technique. The crosslinking of amine groups on the branched PEI chains is accomplished with epoxy groups of glycerol diglycidyl ether (GDE) based on epoxy-amine reactions in excess water at 218 8C in about 16 h. Superporous PEI cryogels with pore sizes >100 lm were shown to have very fast equilibrium swelling behavior, e.g., 10 s to reach maximum swelling in DI water. Furthermore, the synthesized PEI cryogels were exposed to anion exchange reaction after protonation by HCl treatments to generate PEI ionic liquid cryogels containing hexafluorophosphate, thiocyanate, dicyanamide, and tetrafluoroborate. It was also demonstrated that PEI cryogels modified with [PF 6 ] 2 absorbed 47.8 6 5.7 mg/g of bovine serum albumin (BSA). Moreover, PEI cryogels were shown to be very useful as simple filtration filling materials for the direct removal of organic dyes such as methyl orange (MO) and eosin Y (EY) from their corresponding aqueous solutions with 98.5 and 98.6% yields, respectively. The separation of methylene blue (MB) from MO and EY mixture by using PEI cryogels as column filler materials was also demonstrated.

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Section: Introductionmentioning

confidence: 99%

Poly ionic liquid cryogel of polyethyleneimine: Synthesis, characterization, and testing in absorption studies

Şahiner

Demirci

2016

J of Applied Polymer Sci

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“…The structure was degraded at high temperatures. The TGA fraction underwent smaller changes when the temperature was increased (Hang et al 2011). The residual quantity of the PLCFM was higher than that of PLFM because of the influence of the silica.…”

Section: Effect Of Silica On the Thermal Performance Analysis Of Plcfmentioning

confidence: 91%

Studies of Polyvinyl Alcohol/Alkali Lignin/Silica Composite Foam Material (PLCFM)

Luo¹,

Lü²,

Ren³

et al. 2015

BioResources

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This study investigates methods for improving the heat resistance of polyvinyl alcohol/alkali lignin foam material (PLFM). Tetraethoxysilane (TEOS) was used as a precursor to prepare PLCFM by a sol-gel method. The PLCFM, prepared with different levels of TEOS, was characterized by Fourier Transform Infrared spectrometry (FTIR), Differential Scanning Calorimetry (DSC), and Thermogravimetric Analysis (TGA). The results indicated that the addition of silica notably improved the heat resistance properties and the initial decomposition temperature of the foam and exhibited good biocompatibility with the polyvinyl alcohol (PVOH) and alkali lignin. The melting temperature of the PLCFM also increased significantly. It reached 268 °C when the silica content was 10%, which was 110 °C higher than that of PLFM. The mechanical properties were also improved to 27.42 MPa.

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“…MF resin, a thermosetting resin with features of high nitrogen content, flame retardance, and heat resistance, has wide potential applications, such as flame retardant, heat insulation, battery separator, supercapacitor, ion removal, and absorbents . Based on their spatial dimensions, multifunctional materials containing MF resin are mainly divided into four categories: micro‐ and nanospheres (zero‐dimensional), fibers (one‐dimensional), mats (two‐dimensional), and foam (three‐dimensional). In the four categories, melamine fiber, especially microfiber, has relatively been less studied.…”

Section: Introductionmentioning

confidence: 99%

“…Electrospun melamine nanofibers prepared by Ma et al ., whose average diameter decreases from 497 to 297 nm after carbonization, are applied to supercapacitor electrodes. Ying's group has prepared melamine microfibers by reaction electrospinning and discusses the influence of different contents of PVA and voltages on the fiber morphology. From the previous research, it can be concluded that PVA is necessary for the fibrillation of MF resin, and most studies of melamine fiber just focus on the potential applications by virtue of the form and peculiarity of the fibers.…”

Section: Introductionmentioning

confidence: 99%

“…However, a large quantity of PVA cannot be added to the MF resin because it will deteriorate the fire retardancy and water resistance of MF fiber . PVA not only has a chemical modification effect but also a physical blending effect (Figure ) in the polycondensation reaction. As can be seen in Scheme (a), PEG has two dehydration condensation reactions, with the amino of melamine and the hydroxyls of trimethylolmelamine in the MF system.…”

Section: Introductionmentioning

confidence: 99%

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Stability and spinnability of modified melamine–formaldehyde resin solution for centrifugal spinning

Xiong

Hou

2017

J of Applied Polymer Sci

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Melamine microfibers were first prepared by centrifugal spinning. The stability and spinnability of a melamine-formaldehyde (MF) resin solution were improved as expected by adding various modifier combinations. Considering the storage stability of solutions characterized by visual inspection, turbidity tests, and viscosity measurements and combined with the fiber morphology, the optimal modifier combination was obtained. The spun fibers manifested a good morphology and thermal stability as measured by scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. Moreover, microfibers prepared by three spinning methods (centrifugal spinning, electrospinning, and centrifugal electrostatic spinning) were compared to choose the suitable spinning method for different fields in the future. This work provides systematic and scientific guidance on the synthesis of MF resin solutions and rapid mass production of melamine microfibers and also demonstrates that centrifugal spinning of melamine microfiber is a promising candidate for flame retardance and CO 2 adsorption at elevated temperature. V C 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46072.

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Preparation of melamine microfibers by reaction electrospinning

Cited by 21 publications

References 13 publications

Poly ionic liquid cryogel of polyethyleneimine: Synthesis, characterization, and testing in absorption studies

Poly ionic liquid cryogel of polyethyleneimine: Synthesis, characterization, and testing in absorption studies

Studies of Polyvinyl Alcohol/Alkali Lignin/Silica Composite Foam Material (PLCFM)

Stability and spinnability of modified melamine–formaldehyde resin solution for centrifugal spinning

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