dc.contributor	Skřivánek Josef, Ing. Ph.D. : 63445
dc.contributor.advisor	Kalous Tomáš, Ing. Ph.D. : 63777
dc.contributor.author	Sangave, Ulhas Balasaheb
dc.date.accessioned	2022-12-19T04:46:45Z
dc.date.available	2022-12-19T04:46:45Z
dc.date.committed	2022-5-16
dc.date.defense	2022-06-15
dc.date.issued	2022-06-15
dc.date.submitted	2021-11-1
dc.date.updated	2022-6-15
dc.degree.level	Ing.
dc.description.abstract	Nowadays, nanofibers and nanoparticles have become the attraction of study for researchers. Due to the unique physical properties such as ultra-thin fiber diameter. The electrospinning manufacturing technique produces nanofibers that have potential applications in the electronic, biomedical, and filtration industries. Until today, plenty of polymers has been electrospun into nanofibers. Researchers are trying to find the finest nanofibers with excellent spinnability on electrospinning.This study's goal was to optimize the solution for polyamides on alternating current (AC) electrospinning. The polymers PA 6 and PA 6,12 have been chosen for the study. These polymers were dissolved in the mixture of formic acid and dichloromethane at a weight ratio of 1:1 with an increasing concentration of sulfuric acid. All the solutions were electrospun on the alternating and direct current electrospinning systems. The solubility and spinnability of polyamides were investigated. The scanning electron microscope was used for nanofiber diameter measurement. The solution parameters, such as surface tension, conductivity, and viscosity, were measured to see the impact of acid content on the mixture.All the prepared polyamide solutions were spun on both AC and DC electrospinning systems. The sulfuric acid concentration influences the spinnability, nanofiber diameter, and solution properties. AC and DC electrospun polyamide nanofibrous structures are different in terms of bulkiness or thickness.	cs
dc.description.abstract	Nowadays, nanofibers and nanoparticles have become the attraction of study for researchers. Due to the unique physical properties such as ultra-thin fiber diameter. The electrospinning manufacturing technique produces nanofibers that have potential applications in the electronic, biomedical, and filtration industries. Until today, plenty of polymers has been electrospun into nanofibers. Researchers are trying to find the finest nanofibers with excellent spinnability on electrospinning.This study's goal was to optimize the solution for polyamides on alternating current (AC) electrospinning. The polymers PA 6 and PA 6,12 have been chosen for the study. These polymers were dissolved in the mixture of formic acid and dichloromethane at a weight ratio of 1:1 with an increasing concentration of sulfuric acid. All the solutions were electrospun on the alternating and direct current electrospinning systems. The solubility and spinnability of polyamides were investigated. The scanning electron microscope was used for nanofiber diameter measurement. The solution parameters, such as surface tension, conductivity, and viscosity, were measured to see the impact of acid content on the mixture.All the prepared polyamide solutions were spun on both AC and DC electrospinning systems. The sulfuric acid concentration influences the spinnability, nanofiber diameter, and solution properties. AC and DC electrospun polyamide nanofibrous structures are different in terms of bulkiness or thickness.	en
dc.description.mark	3
dc.format	75 p.
dc.format.extent
dc.identifier.signature	V 202204529
dc.identifier.uri	https://dspace.tul.cz/handle/15240/166766
dc.language.iso	an
dc.relation.isbasedon	par1. M. Ventra, Introduction to nanoscale science and technology, Springer, 2004, ISBN: 978-1-4020-7757-9par par2. S. Ramakrishna, An introduction to electrospinning and nanofibers, World scientific, 2005, ISBN: 978-981-4479-77-6par par3. T. Kalous, Improved spinnability of PA 6 solutions, Elsevier, 2020, DOI:~10.1016/j.matlet.2020.128761~par
dc.rights	Vysokoškolská závěrečná práce je autorské dílo chráněné dle zákona č. 121/2000 Sb., autorský zákon, ve znění pozdějších předpisů. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem https://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf a citační etikou https://knihovna.tul.cz/document/26	cs
dc.rights	A university thesis is a work protected by the Copyright Act. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one?s own expense. The use of thesis should be in compliance with the Copyright Act. https://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf and the citation ethics https://knihovna.tul.cz/document/26	en
dc.rights.uri	https://knihovna.tul.cz/document/26
dc.rights.uri	https://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf
dc.subject	Nanofibers	cs
dc.subject	electrospinning	cs
dc.subject	polyamide	cs
dc.subject	AC and DC electrospinning	cs
dc.subject	solution	cs
dc.subject	additive	cs
dc.subject	Nanofibers	en
dc.subject	electrospinning	en
dc.subject	polyamide	en
dc.subject	AC and DC electrospinning	en
dc.subject	solution	en
dc.subject	additive	en
dc.title	Optimization of solutions of polyamide for AC electrospinning	cs
dc.title	Optimization of solutions of polyamide for AC electrospinning	en
dc.type	diplomová práce	cs
local.degree.abbreviation	Navazující
local.degree.discipline	NTNA
local.degree.programme	Textile Engineering
local.degree.programmeabbreviation	N0723A270002
local.department.abbreviation	KNT
local.faculty	Fakulta textilní	cs
local.faculty.abbreviation	FT
local.identifier.author	T19000390
local.identifier.stag	44131
local.identifier.verbis
local.identifier.verbis	f6195d2e-7406-4ac8-8e51-d58af06178ca
local.note.administrators	automat
local.note.secrecy	Povoleno ZverejnitPraci Povoleno ZverejnitPosudky
local.poradovecislo	4529

Optimization of solutions of polyamide for AC electrospinning

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