Accès ouvert
2026
article
OpenAlex
Maciej Borowczak, Karolina Sobczyk, Karol Leluk
The paper analyses the influence of binary solvent systems on the electrospinning process and gelation effect. The characteristics of the electrospinning process are presented, considering the physicochemical properties of polymer solutions and the role of different solvents: chloroform, dimethylformamide (DMF), dimethyl sulfoxide …
pl
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Accès ouvert
2025
article
OpenAlex
Maciej Borowczak, Karolina Sobczyk, Karol Leluk, Joanna Ludwiczak
Effect of hemp shives (30–90 v/v %; size 0.5 and 0.8 mm) on the structure (SEM), mechanical properties (tensile properties, impact strength) and thermal properties (thermal conductivity, Vicat softening temperature) and water absorption of PBS composites was investigated. With the increase in …
pl
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Accès ouvert
2024
article
OpenAlex
Maciej Borowczak, Karolina Sobczyk, Karol Leluk
W artykule przedstawiono możliwości wytwarzania struktur włóknistych techniką elektroprzędzenia z roztworów polimerowych na bazie PBS i binarnego układu rozpuszczalników. Głównym składnikiem układu był chloroform. Sulfotlenek dimetylu (DMSO) lub N,N-dimetyloformamid (DMF) stosowano jako dodatkowy rozpuszczalnik w celu zwiększenia temperatury wrzenia układu. Opisano wpływ …
pl
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Accès ouvert
2019
conference-paper
OpenAlex
Maciej Borowczak, Karolina Sobczyk, Karol Leluk
Electrospinning of biodegradable poly(butylene adipate-co-terephthalate) has been performed. Alternation of process parameters resulted in slight changes in the surface structure morphology of the obtained fibres which was evaluated by using scanning electron microscopy (SEM).
pl
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Accès ouvert
2019
conference-paper
OpenAlex
Karolina Sobczyk, Maciej Borowczak, Karol Leluk
Polymer matrix (MATER-BI) electrospinning tests were carried out under various process conditions. Structures with a diversified morphology have been obtained. Changing the parameters of electrospinning process (mainly voltage and solution concentration) resulted in products with different morphology.
pl
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Accès ouvert
2018
conference-paper
OpenAlex
Karolina Sobczyk, Karol Leluk
Poly(lactic acid) electrospinning tests were carried out under various process conditions. Openwork structures with a high surface area to weight ratio have been obtained. Changing the parameters of the PLA electrospinning process resulted in products with different fiber morphology.
pl
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Accès ouvert
2018
conference-paper
OpenAlex
Karol Leluk, Karolina Sobczyk, Maciej Borowczak
An investigation on electrospinning of polycaprolactone polymer solution was provided in different process conditions. Although, in all attempts a structure of highly surface-to-mass ratio was achieved, alternation of spinning parameters resulted in products of different geometry. This opens a new way of …
pl
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Accès ouvert
2017
conference-paper
OpenAlex
Karolina Sobczyk, Anna Hołtra
The concentrations of heavy metals in soils along the motorway bypass of Wroclaw (AOW) and the Eastern Ring Road of Wroclaw (WOW), Poland, have been determined. The soil samples were collected from the levels of 0-25 cm within 2 m from the …
pl
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