Research group

Polymer processing

In addition to the material development of new plastics for existing applications, current development in the field of polymer materials processing follows the use of existing materials for completely new applications or the increasingly frequent need to define the use of recycled (waste) materials for the production of existing or new products. With regard to this fact, to ensure long-term sustainability of effective progress of innovation activities in this area, it is not only appropriate to take all these aspects into account in production practice, but in accordance with modern production methods it is useful to use available software tools for suggestion of optimization of technological conditions as well as for designing the processing tools. The subject of research and development activities of the Polymer Processing group is focused on selected segments of modern processing technologies. These include mainly the preparation of fibers, nonwovens, polymeric foams and ceramics and metal-filled components with their subsequent sintering. Further the activities focus on processing of thermosetting materials and materials with reduced flammability, injection molding of multi-component products and finally the advanced 3D printing of hierarchically structured materials. Despite the fact that these processing methods differ quite significantly in their technological requirements, the unquestionable common denominator is to know the rheological behaviour of processed macromolecular systems, which is the main controlling parameter in setting and optimizing all technological production processes. The connections between material properties of inputs (thermal, rheological, mechanical and other properties), processing conditions of used technologies (temperature, pressure, flow rate, ..) and achieved parameters of final products (adhesion, mechanical, optical, barrier properties, flammability characteristics, etc.) are investigated/ observed. To achieve an optimized processing process, it is important to know the flow and viscoelastic properties of used materials (modern rotary, oscillating and high pressure capillary rheometers are used). Further the knowledge of influence of selected technological conditions on final characteristics of prepared testing and functional samples and their mutual relations is used/ applied. In the field of polymer materials processing, the group offers comprehensive solutions to research and development tasks as well as problems brought by industrial practice. It is possible to prepare trial products, testing samples, semi-finished products and other products on equipment of laboratory and pilot size. The expertise of staff and the equipment cover areas of continuous and discontinuous processes such as compounding using twin screws, blowing and extrusion of 5-layer films, multicomponent spinning and preparation of nonwovens, blowing of hollow products, thermoforming, extrusion of plastic and elastomer profiles, 1K and 2K injection, injection moulding of highly filled systems, including systems filled with abrasive fillers (PIM - Powder Injection Moulding), debinding and sintering in special ovens with controlled atmosphere, 3D printing.

Head of the group: doc. Ing. Tomáš Sedláček, Ph.D.


Implemented projects

TE01020216 - The project of Competence centre “Centre of advanced polymer and composite materials” in consortium of Tomas Bata University and 5 companies, 2012 – 2019

FV20088 - “Development of novel formulations for modification of asphalt mixtures using recycled polyvinylbutyral”, 2017 – 2019

IGA/CPS/2018/006 - "Preparation and characterization of filled polymeric systems", 2018

Research outcomes

Host-guest paracetamol/cyclodextrin complex formation evaluated from coupled diffusion measurements

CITATION DATA: Journal of Chemical Thermodynamics, VOL: 161, https://doi.org/10.1016/j.jct.2021.106551, PUBLICATION YEAR: 2021

Foamed phase change materials based on recycled polyethylene/paraffin wax blends

CITATION DATA: Polymers, VOL: 13, ISS: 12, https://doi.org/10.3390/polym13121987, PUBLICATION YEAR: 2021

Comparative study of pvdf sheets and their sensitivity to mechanical vibrations: The role of dimensions, molecular weight, stretching and poling

CITATION DATA: Nanomaterials, VOL: 11, ISS: 7, https://doi.org/10.3390/nano11071637, PUBLICATION YEAR: 2021

Gelatine-coated carbonyl iron particles and their utilization in magnetorheological suspensions

CITATION DATA: Materials, VOL: 14, ISS: 10, https://doi.org/10.3390/ma14102503, PUBLICATION YEAR: 2021

The influence of synthesis conditions on the electrorheological performance of iron(II) oxalate rod-like particles

CITATION DATA: Journal of Industrial and Engineering Chemistry, VOL: 100, https://doi.org/10.1016/j.jiec.2021.05.011, PUBLICATION YEAR: 2021

Coupled mutual diffusion in aqueous paracetamol + sodium hydroxide solutions

CITATION DATA: Journal of Molecular Liquids, VOL: 334, https://doi.org/10.1016/j.molliq.2021.116216, PUBLICATION YEAR: 2021

Controlled release of enrofloxacin by vanillin-crosslinked chitosan-polyvinyl alcohol blends

CITATION DATA: Materials Science and Engineering C, VOL: 126, https://doi.org/10.1016/j.msec.2021.112125, PUBLICATION YEAR: 2021

Formation of oleogels based on emulsions stabilized with cellulose nanocrystals and sodium caseinate

CITATION DATA: Journal of Colloid and Interface Science, VOL: 596, https://doi.org/10.1016/j.jcis.2021.02.104, PUBLICATION YEAR: 2021

Enhanced magnetorheological effect of suspensions based on carbonyl iron particles coated with poly(amidoamine) dendrons

CITATION DATA: Rheologica Acta, VOL: 60, ISS: 5, https://doi.org/10.1007/s00397-021-01269-1, PUBLICATION YEAR: 2021

Silver integrated with carbonaceous 2D nanomaterials as an electrocatalyst for reductive dechlorination of chloroacetanilide herbicide

CITATION DATA: Journal of the Electrochemical Society, VOL: 168, ISS: 3, https://doi.org/10.1149/1945-7111/abe8ec, PUBLICATION YEAR: 2021

Light-responsive hybrids based on carbon nanotubes with covalently attached PHEMA-g-PCL brushes

CITATION DATA: Macromolecules, VOL: 54, ISS: 5, https://doi.org/10.1021/acs.macromol.0c02701, PUBLICATION YEAR: 2021

Sustainability assessment and techno-economic analysis of thermally enhanced polymer tube for multi-effect distillation (Med) technology

CITATION DATA: Polymers, VOL: 13, ISS: 5, https://doi.org/10.3390/polym13050681, PUBLICATION YEAR: 2021

Contacts

Head of the group: doc. Ing. Tomáš Sedláček, Ph.D.

Scientific team


prof. Ing. Berenika Hausnerová, Ph.D.

+420 57 603 5166 A316
+420 606 777 288
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research

doc. Ing. Tomáš Sedláček, Ph.D.

+420 57 603 8012 A416
+420 724 434 581
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 research

prof. RNDr. Petr Ponížil, Ph.D.

+420 57 603 5114
+420 724 646 741
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doc. Antonín Minařík, Ph.D.

+420 57 603 1732 A222
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Ing. Lukáš Maňas, Ph.D.

+420 57 603 1737 A228
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Ing. Daniel Sanétrník, Ph.D.

+420 57 603 1726 A226
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Ing. Tomáš Plachý, Ph.D.

+420 57 603 1721 A207
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Ing. Pavlína Holčapková, Ph.D.

+420 57 603 8028 A215
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Ing. Roman Kolařík, Ph.D.

+420 57 603 8028 A215
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Ing. Markéta Ilčíková, Ph.D.

+420 57 603 5103 A216
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Ing. Lenka Musilová, Ph.D.

+420 57 603 1728 A216
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Ing. Petr Smolka, Ph.D.

+420 57 603 1732 A222
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doc. Ing. Aleš Mráček, Ph.D.

+420 57 603 1732 A222
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Ing. Josef Osička, Ph.D.

+420 57 603 1721 A207
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Ing. Miroslav Mrlík, Ph.D.

+420 57 603 8027 A314
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Ph.D. students


Ing. Věra Klofáčová

+420 57 603 1721 A207
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Ing. Danila Gorgol

+420 57 603 1721 A207
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Contacts

Management


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