prof. Dr. Ing. Petr Lenfeld
Line | Position | Department | Office number |
+420 48535 3052 | Vice Rector | Office of the Vice Rector for Science and Research | |
+420 48535 3340 | Employee | Department of Engineering Technology | E 03059 |
Publications
- A. Vašíček, P. Lenfeld, L. Běhálek, Degradation of Polylactic Acid Polymer and Biocomposites Exposed to Controlled Climatic Ageing: Mechanical and Thermal Properties and Structure, Polymers, BASEL, MDPI, 12 pages, ISSN: 2073-4360, n. 14, [Online], 2023
- P. Brdlík, J. Novák, M. Borůvka, L. Běhálek, P. Lenfeld, The Influence of Plasticizers and Accelerated Ageing on Biodegradation of PLA under Controlled Composting Conditions, Polymers, Basel, MDPI AG, 31 pages, ISSN: 2073-4360, n. 1, [Online], 2023
- Š. Dvořáčková, A. Knap, M. Váňa, P. Lenfeld, Vložka s mikrostrukturním povrchem s hierarchickou strukturou, 2023
- P. Brdlík, M. Borůvka, L. Běhálek, P. Lenfeld, The Influence of Additives and Environment on Biodegradation of PHBV Biocomposites, Polymers, BASEL, Mdpi, 20 pages, ISSN: 2073-4360, n. 4, [Online], 2022
- J. Novák, L. Běhálek, M. Borůvka, P. Lenfeld, The Physical Properties and Crystallization Kinetics of Biocomposite Films Based on PLLA and Spent Coffee Grounds, Materials, BASEL, Mdpi, 19 pages, ISSN: 1996-1944, n. 24, [Online], 2022
- P. Brdlík, M. Borůvka, L. Běhálek, P. Lenfeld, Biodegradation of Poly(Lactic Acid) Biocomposites under Controlled Composting Conditions and Freshwater Biotope, Polymers, Basel, MDPI AG, p. 1-15, 15 pages, ISSN: 2073-4360, n. 4, [Online], 2021
- P. Lenfeld, J. Habr, L. Běhálek, M. Borůvka, P. Brdlík, Biopolymerní kompozitní materiál na bázi kyseliny polylaktické, [Online], 2021
- P. Lenfeld, M. Češková, M. Borůvka, Kelímek z biopolymerního materiálu, [Online], 2021
- L. Běhálek, J. Novák, P. Brdlík, M. Borůvka, J. Habr, P. Lenfeld, Physical properties and non-isothermal crystallisation kinetics of primary mechanically recycled poly(L-lactic acid) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate), Polymers, Basel, MDPI, 1, p. 1-20, 20 pages, ISSN: 2073-4360, n. 19, [Online], 2021
- P. Lenfeld, P. Brdlík, M. Borůvka, L. Běhálek, J. Habr, Effect of Radiation Crosslinking and Surface Modification of Cellulose Fibers on Properties and Characterization of Biopolymer Composites, Polymers, MDPI AG, p. 1-22, 22 pages, ISSN: 2073-4360, n. 12, [Online], 2020
- P. Lenfeld, J. Habr, L. Běhálek, M. Borůvka, P. Brdlík, Kelímek z biodegradovatelného kompozitního systému PHBV, 2020
- P. Lenfeld, P. Brdlík, M. Borůvka, J. Habr, L. Běhálek, P. Kůsa, Lahvička z biodegradovatelného kompozitního systému PLA s nanokrystaly celulózy, 2020
- J. Habr, P. Lenfeld, L. Běhálek, M. Borůvka, P. Brdlík, Mechanical properties of biopolymer composite with natural fibers surface modified by low-temperature plasma, MM Science Journal, MM Publishing, s.r.o., 1, p. 4007-4014, 8 pages, ISSN: 1803-1269, n. 10, [Online], 2020
- P. Lenfeld, I. Lenfeldová, L. Běhálek, M. Borůvka, Mechanical Properties of Hierarchical Biopolymer Composite with a Modified Surface of Knitting Fabric, Materials Science Forum, Trans Tech Publications Ltd, p. 179-188, 10 pages, ISSN: 0255-5476, [Online], 2020
- M. Češková, P. Lenfeld, Polymer Based Injection Mould Cavity Inserts: An Influence on Crystallization and Thermo-Mechanical Properties of Injection Moulded Parts, Materials Science Forum, Trans Tech Publications Ltd, 1, p. 143-151, 9 pages, ISSN: 0255-5476, [Online], 2020
- M. Borůvka, L. Běhálek, P. Lenfeld, P. Brdlík, J. Habr, J. Bobek, M. Pechočiaková, W. Sorasak, Solid and microcellular polylactide nucleated with PLA stereocomplex and cellulose nanocrystals, Journal of Thermal Analysis and Calorimetry, DORDRECHT, SPRINGER, 1, p. 695-713, 19 pages, ISSN: 1388-6150, n. 2, [Online], 2020
- L. Běhálek, M. Borůvka, P. Brdlík, J. Habr, P. Lenfeld, F. Veselka, D. Kroisová, J. Novák, Thermal properties and non-isothermal crystallization kinetics of biocomposites based on poly(lactic acid), rice husks and cellulose fibres, Journal of Thermal Analysis and Calorimetry, DORDRECHT, Springer, p. 629-649, 21 pages, ISSN: 1388-6150, n. 2, [Online], 2020
- C. Ngaowthong, M. Borůvka, L. Běhálek, P. Lenfeld, M. Švec, R. Dangtungee, S. Siengchin, S. Rangappa, J. Parameswaranpillai, Recycling of sisal fiber reinforced polypropylene and polylactic acid composites: Thermo-mechanical properties, morphology, and water absorption behavior, Waste management, Elsevier, 1, p. 71-81, 11 pages, ISSN: 0956-053X, [Online], 2019
- M. Borůvka, L. Běhálek, P. Lenfeld, M. Pechočiaková, Structure-related properties of bionanocomposites based on poly(lactic acid), cellulose nanocrystals and organic impact modifier, Materials Technology, Taylor & Francis, p. 143-156, 14 pages, ISSN: 1066-7857, n. 3, [Online], 2019
- M. Janošová, P. Lenfeld, Analysis of the pressure and shrinkage in the mould for PLA and PLLA, Materials Science Forum, Trans Tech Publications Ltd, 919, p. 128-135, 7 pages, ISSN: 0255-5476, 2018
- P. Lenfeld, L. Běhálek, M. Borůvka, Application of cryogenic grinding for filler preparation in the form of coconut nanocomposites into the thermoplastic matrix with the evaluation of properties while using different types of MAgPP coupling agents, Journal of Mechanical Engineering, Malaysia, Universiti Teknologi MARA, p. 13-27, 15 pages, ISSN: 1823-5514, n. 2, [Online], 2018
- J. Vácha, P. Lenfeld, Correlation between electromagnetic shielding efficiency and resistivity of thermoplastic polymer nanocomposite, NANOCON 2017 - Conference Proceedings, 9th International Conference on Nanomaterials, Ostrava, ISBN: 978-808729481-9, p. 80-87, 8 pages, 2018
- J. Průšek, M. Borůvka, P. Lenfeld, Natural Aerobic Degradation of Polylactic Acid (Composites) with Natural Fiber Additives, Materials Science Forum, Trans Tech Publications, 1, p. 167-174, 8 pages, ISSN: 0255-5476, n. 919, 2018
- M. Češková, P. Lenfeld, Polymer cavity made by freeformer® 3D printer: An influence on injection moulded parts, MM Science Journal, Pague, MM publishing Ltd., p. 2710-2714, 5 pages, ISSN: 1803-1269, 2018
- T. Nguyen Vo, P. Lenfeld, The Effect of Different Heights and Angles of Energy Director on Interface Temperature for Ultrasonic Welding of Thermoplastics, IOP Conference Series: Materials Science and Engineering, Institute of Physics Publishing, 9 pages, ISSN: 1757-8981, n. 1, [Online], 2018
- M. Borůvka, J. Průšek, L. Běhálek, P. Lenfeld, The effect of nucleating agents, blending and annealing on crystallization, impact properties and heat deflection temperature of PLA/PHBV/L-CNC bionanocomposites, NANOCON 2017 - Conference Proceedings, 9th International Conference on Nanomaterials - Research and Application, Ostrava, Tanger Ltd, ISBN: 978-80-87294-81-9, p. 617-626, 10 pages, 2018
- T. Nguyen Vo, P. Lenfeld, A Review of Studies on Ultrasonic Welding, International Journal of Advance Engineering and Research Development, Gujarat, 1, p. 482-489, 8 pages, ISSN: 2348-4470, n. 9, 09/2017, [Online], 2017
- P. Lenfeld, A. Ausperger, L. Běhálek, J. Bobek, J. Habr, M. Lukeš, M. Seidl, Z. Severa, Biokompozit s PLA matricí a vlákny banánovníku, [Online], 2017
- P. Lenfeld, A. Ausperger, L. Běhálek, J. Bobek, M. Lukeš, M. Seidl, Z. Severa, Composite with synthetic polymeric matrix and cellulose in the form of natural fibre filler, [Online], 2017
- J. Habr, P. Lenfeld, L. Běhálek, J. Kopeček, Polymerní kompozit s kokosovými vlákny a nízkohustotními částicemi, [Online], 2017
- J. Habr, P. Lenfeld, L. Běhálek, J. Bobek, M. Seidl, M. Lukeš, Z. Severa, J. Kopeček, Polymerní kompozit s přírodními vlákny a lehčenou matricí, [Online], 2017
- J. Habr, L. Běhálek, P. Lenfeld, J. Bobek, Polymerní kompozit se skleněnými dutými mikrokuličkami a uhlíkovými vlákny, [Online], 2017
- M. Borůvka, L. Běhálek, J. Habr, P. Lenfeld, J. Vácha, C. Ngaowthong, Properties of injection molded nanocomposites and blends based on PLA, PHBV and L-CNC, Journal of Mechanical Engineering, Shah Alam, Selangor Darul Ehsan Malaysia, UiTM Press, p. 128-141, 14 pages, ISSN: 1823-5514, n. 3,říjen, [Online], 2017
- P. Lenfeld, J. Bobek, Vstřikovací forma k výrobě vzorků pro zkoušky expandovaných materiálů, [Online], 2017
- M. Janošová, P. Lenfeld, Analysis of parameters with influence on material shrinkage PLA and PLLA, Materials Science Forum, Pfaffikon, Trans Tech Publications Ltd, ISBN: 978-3-03835-728-5, p. 133-140, 8 pages, ISSN: 0255-5476, n. 862, 2016
- P. Lenfeld, L. Běhálek, M. Borůvka, J. Průšek, Dynamic-mechanical properties of polymer composites with the short and long glass fibers, Materials Science Forum, Pfaffikon, Trans Tech Publications Ltd, ISBN: 978-3-03835-728-5, p. 166-173, 8 pages, ISSN: 0255-5476, n. 862, 2016
- M. Borůvka, C. Ngaowthong, L. Běhálek, J. Habr, P. Lenfeld, Effect of dielectric barrier discharge plasma surface treatment on the properties of pineapple leaf fiber reinforced poly(Lactic acid) Biocomposites, Materials Science Forum, Pfaffikon, Trans Tech Publications Ltd, ISBN: 978-3-03835-728-5, p. 156-165, 10 pages, ISSN: 0255-5476, n. 862, 2016
- M. Borůvka, P. Lenfeld, Extraction of cellulose nanocrystals as a potential reinforcing material for poly(lactic acid) biocomposites, NANOCON 2015 - 7th International Conference on Nanomaterials - Research and Application, Conference Proceedings, Ostrava, TANGER Ltd., 1, ISBN: 978-80-87294-63-5, p. 360-365, 6 pages, 2016
- J. Habr, P. Lenfeld, L. Běhálek, J. Bobek, M. Seidl, M. Lukeš, Z. Severa, J. Kopeček, Hybridní polymerní kompozit s přírodními a skleněnými vlákny, 2016
- J. Habr, P. Lenfeld, L. Běhálek, M. Seidl, J. Bobek, Hybridní polymerní kompozit s vlákny přírodního původu a skleněnými dutými kuličkami, 2016
- J. Bobek, J. Habr, M. Seidl, L. Běhálek, P. Lenfeld, New Silane and MAPP Coupling Agents as Natural Composites Production Systems Improvement, Key Engineering Materials, Trans Tech Publications Ltd, 1, ISBN: 978-3-03835-629-5, p. 52-59, 8 pages, ISSN: 1013-9826, [Online], 2016
- M. Seidl, J. Bobek, P. Lenfeld, J. Habr, L. Běhálek, I. Nováková, Observation of impact of progressive cooling system on temperature field distributions on surfaces of injection moulded plastic parts, Key Engineering Materials, Vol. 669, Pfaffikon, Switzerland, Trans Tech Publications, 1, ISBN: 978-3-03835-629-5, p. 19-28, 10 pages, ISSN: 1013-9826, 2016
- L. Běhálek, P. Lenfeld, J. Habr, J. Dobránsky, M. Seidl, J. Bobek, Physical-mechanical properties of hollow glass microspheres filled polypropylene composites for injection moulding, Key Engineering Materials, Pfaffikon, Trans Tech Publications Ltd, 1, ISBN: 978-3-03835-629-5, p. 3-10, 8 pages, ISSN: 1013-9826, n. 669, [Online], 2016
- J. Habr, P. Lenfeld, L. Běhálek, J. Bobek, M. Seidl, M. Lukeš, Z. Severa, J. Kopeček, Polymerní kompozit s přírodními vlákny a lehčenou matricí, 2016
- M. Borůvka, C. Ngaowthong, J. Cerman, P. Lenfeld, P. Brdlík, The influence of surface modification using low-pressure plasma treatment on PE-LLD/alfa-cellulose composite properties, Manufacturing Technology, Ústi n .L., Univerzita J. E. Purkyne, p. 29-34, 6 pages, ISSN: 1213-2489, n. 1, 2016
- L. Běhálek, J. Habr, M. Seidl, P. Lenfeld, M. Borůvka, Thermal degradation of the thermoplastic Elastomers during the injection Moulding process, Materials Science Forum, Pfaffikon, Trans Tech Publications Ltd, ISBN: 978-3-03835-728-5, p. 148-155, 8 pages, ISSN: 0255-5476, n. 862, 2016
- J. Habr, J. Bobek, P. Lenfeld, L. Běhálek, M. Seidl, Two component parts hardness optimization regarding production systems, Key Engineering Materials, Pfaffikon, Switzerland, Trans Tech Publications Ltd, ISBN: 978-3-03835-720-9, p. 44-51, 8 pages, ISSN: 1013-9826, n. 669, 2016
- M. Borůvka, P. Lenfeld, P. Brdlík, L. Běhálek, Effect of Compatibilizing Agents on the Interface and Mechanical Behaviour of Polypropylene/ Hemp Bast Fiber Biocomposites, IOP Conference Series: Materials Science and Engineering, Bristol, United Kingdom, IOP PUBLISHING LTD, ENGLAND, 1, p. 1-7, 7 pages, ISSN: 1757-8981, n. 87 (1, červenec, 2015), 2015
- P. Lenfeld, J. Bobek, Geometrie styčné plochy tvrdé komponenty plastových vstřikovaných bikomponentních výrobků, [Online], 2015
- L. Vysloužilová, M. Seidl, J. Hrůza, J. Bobek, D. Lukáš, P. Lenfeld, Nanofibrous filters for respirators, Advanced Material Research, Švýcarsko, Trans Tech Publications, 1, p. 126-131, 6 pages, ISSN: 1662-8985, [Online], 2015
- P. Lenfeld, L. Běhálek, J. Bobek, M. Seidl, J. Habr, Ochranná dýchací maska se společným nádechovým a výdechovým otvorem, [Online], 2015
- P. Lenfeld, L. Běhálek, J. Bobek, J. Habr, M. Seidl, Ochranná dýchací maska se společným nádechovým a výdechovým otvorem, [Online], 2015
- M. Seidl, J. Habr, J. Bobek, L. Běhálek, P. Lenfeld, Optimization of snap-fit designs with rapid prototype technology support, MM Science Journal, 1, p. 813-817, 5 pages, ISSN: 1805-0476, [Online], 2015
- L. Běhálek, J. Habr, J. Bobek, M. Seidl, P. Lenfeld, Physical-mechanical properties of biocomposites reinforced with coir (nano)fibers, NANOCON 2014, 6th International conference, Brno, Tanger s.r.o., 1, ISBN: 978-80-87294-53-6, p. 610-614, 5 pages, [Online], 2015
- J. Habr, L. Běhálek, P. Lenfeld, J. Bobek, Polymerní kompozit se skleněnými dutými mikrokuličkami a uhlíkovými vlákny, [Online], 2015
- P. Lenfeld, J. Habr, M. Seidl, L. Běhálek, J. Bobek, Z. Severa, Influence of the type of additives on the properties of polymer nanocomposites with fillers based on highly pure cellulose, NANOCON 2013, 5TH INTERNATIONAL CONFERENCE, Brno, Tanger s.r.o., 1, ISBN: 978-80-87294-47-5, p. 77-82, 6 pages, 2014
- L. Běhálek, M. Maršálková, P. Lenfeld, J. Habr, J. Bobek, M. Seidl, Study of Crystallization of Polylactic Acid Composites And Nanocomposites with Natural Fibres by DSC Methodas, 5th NANOCON International Conference, Brno, Tanger s.r.o., 1, ISBN: 978-80-87294-47-5, p. 746-751, 6 pages, 2014
- P. Lenfeld, J. Bobek, M. Seidl, Anti-dust filters, [Online], 2013
- P. Lenfeld, J. Bobek, M. Seidl, Anti-dust filters, [Online], 2013