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Preparation of Electrospun Composite PEG/PVP Phase-Change Nanofibers and their Application in Cigarette Cooling Filters

Chen Chen, Li Liqun, Qiao Yuemei, Guo Chunsheng, Ye Yajun, Du He

Fibres & Textiles in Eastern Europe

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2023

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Vol. 31, no. 3

9-13

EN

Composite phase-change nanofibers were prepared by electrospinning with polyethylene glycol (PEG) as the phase-change material (PCM) and polyvinylpyrrolidone (PVP) as the carrier matrix. The high PEG content endowed the nanofibers with an excellent cooling effect and significantly reduced the smoke temperature. For PEG70/PVP nanofibers, the smoke temperature can be decreased 45℃ at the 8th puff, and be kept below 45℃. The cooling test proved that the electrospun PEG/PVP phase-change nanofibers exhibited a desirable cooling performance, improving the comfort of cigarette products. And the composite PEG/PVP phase-change nanofibers present great potential as the cooling cigarette filter material for HnB tobacco application.

2

Manufacturing process and characterization of electrospun PVP/ZnO NPs nanofibers

Matysiak W., Tański T., Zaborowska M.

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2019

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Vol. 67, nr 2

193--200

EN

Constantly developing nanotechnology provides the possibility of manufacturing nanostructured composites with a polymer matrix doped with ceramic nanoparticles, including ZnO. A specific feature of polymers, i.e. ceramic composite materials, is an amelioration in physical properties for polymer matrix and reinforcement. The aim of the paper was to produce thin fibrous composite mats, reinforced with ZnO nanoparticles and a polyvinylpyrrolidone (PVP) matrix obtained by means of the electrospinning process and then examining the influence of the strength of the reinforcement on the morphology and optical properties of the composite nanofibers. The morphology and structure of the fibrous mats was examined by a scanning electron microscope (SEM) with an energy dispersive spectrometer (EDS) and Fourier-transform infrared spectroscopy (FTIR). UV –Vis spectroscopy allowed to examine the impact of zinc oxide on the optical properties of PVP/ZnO nanofibers and to investigate the width of the energy gap.

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Wpływ kompleksów anionowych surfaktantów z poliwinylopirolidonem tworzonych w roztworach wodnych na właściwości fizykochemiczne i użytkowe szamponów

Sułek M. W., Janiszewska J., Kurzepa K., Mirkowska B.

Polimery

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2018

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T. 63, nr 7-8

549--556

PL

Na podstawie analizy dostępnych wliteraturze wyników badań kompleksów polimerów z surfaktantami w roztworachwodnych opracowano receptury łagodnych dla skóry szamponów z udziałem dodecylosiarczanu sodu (SDS) oraz poliwinylopirolidonu (PVP). Oznaczono ich napięcie powierzchniowe, pianotwórczość i liczbę zeinową. Stwierdzono, że wodne roztwory PVP i SDS mogą być bazami szamponów o niskim potencjale drażniącym. Najkorzystniejszą ocenę (testy fizykochemiczne i sensoryczne) uzyskał szampon zawierający PVP90 (opracowany szampon oryginalny). Zestawiono wybrane właściwości użytkowe szamponu oryginalnego i produktu rynkowego. Jakość obu szamponów była porównywalna, natomiast wartość liczby zeinowej (LZ), będącej miarą potencjału drażniącego, była o ponad 30% mniejsza niż LZ szamponu rynkowego.

EN

Based on the analysis of published results of studies on the complexes of polymers with surfactants in aqueous solutions, shampoo formulations containing sodium dodecyl sulfate (SDS) and polyvinylpyrrolidone (PVP), which are mild to the skin, were developed. The measurements of surface tension, foamability and zein number confirmed that the aqueous solutions of PVP and SDS may be used as bases for shampoo with low irritation potential. The most favorable evaluation of physicochemical and sensory tests was obtained for a shampoo containing PVP90 (termed the original shampoo). A comparison of selected functional properties of the original product with the commercial product was performed. Both shampoos were of comparable quality, but the zein number (ZN), which is a measure of irritation potential, was reduced by more than 30 % compared to the commercial shampoo.

4

Morphological, chemical and structural characterization of silica-containing polyvinylpyrrolidone electrospun nanofibers prepared by sol-gel technique

Tański T., Matysiak W., Zaborowska M., Łukowiec D., Krzesiński M.

Journal of Achievements in Materials and Manufacturing Engineering

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2016

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Vol. 79, nr 1

5--12

EN

Purpose: The aim of this study was to produce poly(vinylpyrrolidone) (PVP) containing silica nanofibers using electrospinning method from 10% PVP/EtOH solutions with different mass concentration 0 and 30% of tetraethoxysilane. Sol-gel technique was used to obtain nanofiber membranes with high amount of inorganic phase. In the case when metal alkoxide, such as tetraethyl orthosilicate (TEOS) is mixed with an organic polymer, hydrolysis and condensation reaction of TEOS occur in-situ with polymer matrix, which allows to fabricate organic-inorganic hybrid structures with uniform dispersion. Design/methodology/approach: The examination of the morphology of the obtained PVP/silicon dioxide nanofibers using scanning electron microscope (SEM) has been made. The chemical structure of produced nanostructures was investigated by Fourier - Transform Infrared spectroscopy (FTIR) and Energy Dispersive Spectrometry (EDX) to analyze the regular dispersion by examining types of bonds occurring between polymer matrix and SiO2 phase. Findings: Results obtained in this paper shows that the mass concentration of the reinforcing phase in form of TEOS have an influence on the average diameter of nanofibers and with the increase of tetraethyl orthosilicate in solution nanofibers diameters decrease. Moreover, structural examination shows uniform dispersion of the reinforcing phase in hybrid materials. Research limitations/implications: Uniform dispersion of the reinforcing phase in silica-containing PVP nanofibers gives the opportunity to make nanowires in calcination process from such obtained fibrous mats and use in novel electrical devices. Originality/value: This paper describes an easy and more effective way of making polymer nanofibers with the content of silicon dioxide with the perspective way of making silica nanowires in the future from obtained hybrid nanofibers, so that this method can replace commonly used nanowires growth processes.

5

Synteza nanocząstek złota w reaktorze cyklicznym przy użyciu DMAB (Dimetyloamino Boran) w środowisku wodnym

Wojnicki M., Fitzner K.

Rudy i Metale Nieżelazne

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2011

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R. 56, nr 7-8

375-379

PL

Nanocząstki złota stały się interesującym obiektem badań głównie ze względu na ich fizykochemiczne właściwości, takie jak: właściwości optyczne (szeroka gama koloru nanocząstek, który zależy od ich rozmiaru), zdolności katalityczne oraz potencjalne możliwości ich zastosowania w medycynie. W artykule zbadano wpływ takich czynników, jak stężenie soli złota, stężenie reduktora oraz stabilizatora na rozmiar i dystrybucję rozmiaru otrzymanych nanocząstek. W badaniach wykorzystano kompleks chlorkowy złota jako prekursor oraz DMAB jako reduktor tych jonów. Zbadano wpływ różnych stabilizatorów, takich jak PVA, PVP i CTAB na rozmiar otrzymywanych nanocząstek. Wykazano, że w badanym układzie możliwe jest otrzymanie nanocząstek złota o kontrolowanym rozmiarze i wąskiej dystrybucji rozmiaru.

EN

Gold nanoparticles are Interesting materials because of their various physicochemical properties e.g. optical properties (wide color palette dependent on particles size), catalytic properties and their potential application in medicine. In this work we were investigated the influence of gold salts concentration, reductant concentration and stabilization agent con-centration on the size and size distribution of gold nanoparticles. Chloride complexes ions as a precursor and DMAB (dime-tyloaminoborane) as a reducing agent were used. The influence of stabilizing agents such as PVA, PVP and CTAB on nanoparticles size was investigated. Our studies showed that it is possible to obtain gold nanoparticles with satisfactory size and narrow size distribution in the investigated system.