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

Substantial drop of plasticizer migration from polyvinyl chloride catheters using co-extruded thermoplastic polyurethane layers

CITATION DATA: Materials Today Communications, VOL: 32, https://doi.org/10.1016/j.mtcomm.2022.103895, PUBLICATION YEAR: 2022

Process-induced morphology of poly(butylene adipate terephthalate)/poly(lactic acid) blown extrusion films modified with chain-extending cross-linkers

CITATION DATA: Polymers, VOL: 14, ISS: 10, https://doi.org/10.3390/polym14101939, PUBLICATION YEAR: 2022

New approach to prepare cytocompatible 3D scaffolds via the combination of sodium hyaluronate and colloidal particles of conductive polymers

CITATION DATA: Scientific Reports, VOL: 12, ISS: 1, https://doi.org/10.1038/s41598-022-11678-8, PUBLICATION YEAR: 2022

Effect of nano-sized poly(butyl acrylate) layer grafted from graphene oxide sheets on the compatibility and beta-phase development of poly(vinylidene fluoride) and their vibration sensing performance

CITATION DATA: International Journal of Molecular Sciences, VOL: 23, ISS: 10, https://doi.org/10.3390/ijms23105777, PUBLICATION YEAR: 2022

DNA functionalized spider silk nanohydrogels for specific cell attachment and patterning

CITATION DATA: ACS Nano, VOL: 16, ISS: 5, https://doi.org/10.1021/acsnano.1c11148, PUBLICATION YEAR: 2021

Transformation of cellulose via two-step carbonization to conducting carbonaceous particles and their outstanding electrorheological performance

CITATION DATA: International Journal of Molecular Sciences, VOL: 23, ISS: 10, https://doi.org/10.3390/ijms23105477, PUBLICATION YEAR: 2022

RheoTack - An approach to investigate retraction rate dependent detaching behavior of pressure sensitive adhesives

CITATION DATA: Journal of Rheology, VOL: 66, ISS: 3, https://doi.org/10.1122/8.0000405, PUBLICATION YEAR: 2022

The effect of surface substrate treatments on the bonding strength of aluminium inserts with glass-reinforced poly(phenylene) sulphide

CITATION DATA: Materials, VOL: 15, ISS: 5, https://doi.org/10.3390/ma15051929, PUBLICATION YEAR: 2022

Crystallization kinetics and structural properties of nanocrystalline europium-yttrium-titanate (Eu0.5Y0.5)2Ti2O7

CITATION DATA: Advanced Powder Technology, VOL: 33, ISS: 3, https://doi.org/10.1016/j.apt.2022.103501, PUBLICATION YEAR: 2022

Hierarchically structured surfaces prepared by phase separation: Tissue mimicking culture substrate

CITATION DATA: International Journal of Molecular Sciences, VOL: 23, ISS: 5, https://doi.org/10.3390/ijms23052541, PUBLICATION YEAR: 2022

Cross-linked gelatine by modified dextran as a potential bioink prepared by a simple and non-toxic process

CITATION DATA: Polymers, VOL: 14, ISS: 3, https://doi.org/10.3390/polym14030391, PUBLICATION YEAR: 2022

Zein-based films containing monolaurin/eugenol or essential oils with potential for bioactive packaging application

CITATION DATA: International Journal of Molecular Sciences, VOL: 23, ISS: 1, https://doi.org/10.3390/ijms23010384, PUBLICATION YEAR: 2022

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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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. Erika Kutálková, Ph.D.

+420 57 603 1730 A218
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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. Martina Polášková, Ph.D.

+420 57 603 1118
+420 733 690 668
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Ing. Tomáš Plachý, Ph.D.

+420 57 603 1730 A218
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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 1732 A222
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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 1730 A218
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Ing. Josef Osička, Ph.D.

+420 57 603 1728 A216
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Ing. Miroslav Mrlík, Ph.D.

+420 57 603 8027 A314
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Ph.D. students


Ing. Filip Mikulka

+420 57 603 1721 A207
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Ing. Danila Gorgol

+420 57 603 1721 A207
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Ing. Rostislav Vilém

+420 57 603 1721 A207
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Ing. Karolína Kocourková

+420 57 603 1763 A145
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Contacts

Management


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