Search Results - "Kelnar, Ivan"

Effect of Polydopamine Coating of Cellulose Nanocrystals on Performance of PCL/PLA Bio-Nanocomposites by Kelnar, Ivan, Kaprálková, Ludmila, Krejčíková, Sabina, Dybal, Jiří, Vyroubalová, Michaela, Abdel-Mohsen, A M

“…In bio-nanocomposites with a poly(lactic acid) (PLA)/poly(ε-caprolactone) (PCL) matrix with neat and polydopamine (PDA)-coated cellulose nanocrystals (CNCd),…”
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Effect of graphite nanoplatelets on the structure and properties of PA6-elastomer nanocomposites by Thanh, Tran Duy, Kaprálková, Ludmila, Hromádková, Jiřina, Kelnar, Ivan

“…[Display omitted] •Combination of reinforcement and structure-directing effect of graphite nanoplatelets.•Effective dispergation of graphite nanoplatelets…”
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The Effects of the Deacetylation of Chitin Nanowhiskers on the Performance of PCL/PLA Bio-Nanocomposites by Kelnar, Ivan, Kaprálková, Ludmila, Němeček, Pavel, Dybal, Jiří, Abdel-Rahman, Rasha M, Vyroubalová, Michaela, Nevoralová, Martina, Abdel-Mohsen, A M

“…The multiple roles of organic nanofillers in biodegradable nanocomposites (NC) with a blend-based matrix is not yet fully understood. This work highlights…”
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Effect of clay treatment on structure and mechanical behavior of elastomer-containing polyamide 6 nanocomposite by Kelnar, Ivan, Khunová, Viera, Kotek, Jiří, Kaprálková, Ludmila

“…The effect of clay organophilization on mechanical behavior and structure of PA6/EPR blends was studied. It has been shown that the modification of clay…”
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Complex structures formed by combination of polymer-grafted GO and impact modifier in epoxy by Kelnar, Ivan, Kaprálková, Ludmila, Krejčíková, Sabina, Zhigunov, Alexander, Janata, Miroslav

“…Parameters of epoxy can be effectively improved using polymer-grafted GO. This study reveals so far unknown structure-directing performance of single- and…”
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Creep behavior of HDPE/PA66 microfibrillar composites modified with graphite nanoplatelets by Kelnar, Ivan, Bal, Ümitcan, Ujčič, Alexandra, Kaprálková, Ludmila, Krejčíková, Sabina, Steinhart, Michal, Nofar, Mohammadreza

“…Low deformational resistance of polymers can be effectively improved by reinforcement, mostly using rigid particles and fibers. In contrast, this work reveals…”
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Effect of Chitin Nanocrystal Deacetylation on a Nature-Mimicking Interface in Carbon Fiber Composites by Abdellatif M. Abdel-Mohsen, Rasha M. Abdel-Rahman, Lukáš Kalina, Vishakha Vishakha, Ludmila Kaprálková, Pavel Němeček, Josef Jančář, Ivan Kelnar

“…The formation of a rigid, tough interface based on a nacre-like structure in carbon fiber (CF) composites is a promising way to eliminate low delamination…”
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Monitoring of Morphology and Properties During Preparation of PCL/PLA Microfibrillar Composites With Organophilic Montmorillonite by Slouf, Miroslav, Ujcic, Aleksandra, Nevoralova, Martina, Vackova, Tatana, Fambri, Luca, Kelnar, Ivan

“…Biodegradable microfibrillar composites PCL/PLA/C15, where PCL is poly(ε-caprolactone), PLA is poly(lactic acid), and C15 is organophilic montmorillonite, have…”
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Effect of blend ratio and nanofiller localization on the thermal degradation of graphite nanoplatelets-modified PLA/PCL by Luyt, Adriaan Stephanus, Kelnar, Ivan

“…A variety of poly(lactic acid) (PLA)-poly( ε -caprolactone) (PCL) samples with different PLA:PCL ratios, containing different contents of graphite…”
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Carboxymethyl cellulose-hydrogel embedded with modified magnetite nanoparticles and porous carbon: Effective environmental adsorbent by Kamel, Samir, El-Gendy, Ahmed A., Hassan, Mohamed A., El-Sakhawy, Mohamed, Kelnar, Ivan

“…•Porous carbon was prepared via single-step oxidation of bagasse.•Citric acid modified magnetite nanoparticles were synthesized.•Cellulosic hydrogel embedded…”
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Non-isothermal kinetics of cold crystallization in multicomponent PLA/thermoplastic polyurethane/nanofiller system by Kratochvíl, Jaroslav, Kelnar, Ivan

“…The effect of platy and tubular nanofillers (NF) in combination with thermoplastic polyurethane (TPU) on cold non-isothermal crystallization (NIC) of…”
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Effect of GO modification and curing on formation of ordered structures in epoxy composites by Kelnar, Ivan, Kaprálková, Ludmila, Krejčíková, Sabina, Zhigunov, Alexander, Janata, Miroslav

“…[Display omitted] •Synthesis of bimodal polymer-grafted graphene oxide.•Crucial effect of grafting type and curing on GO ordering in liquid epoxy.•Bimodally…”
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Synergistic effects in Methylcellulose/Hydroxyethylcellulose blend: Influence of components ratio and graphene oxide by Kelnar, Ivan, Zhigunov, Alexander, Kaprálková, Ludmila, Krejčíková, Sabina, Dybal, Jiří

“…[Display omitted] •Complex effects of HEC and GO on structural transformations and properties of MC.•Small content of HEC causes formation of favorable ordered…”
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Preparation and performance of bionanocomposites based on grafted chitosan, GO and TiO2-NPs for removal of lead ions and basic-red 46 by El-Aziz, M.E. Abd, Youssef, A.M., Kamal, Kholod H., Kelnar, Ivan, Kamel, Samir

“…Wastewater rich in heavy metals and organic compounds represents one of the essential environmental pollutants. Therefore, a practical approach is to fabricate…”
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Graphite nanoplatelets-modified PLA/PCL: Effect of blend ratio and nanofiller localization on structure and properties by Kelnar, Ivan, Kratochvíl, Jaroslav, Kaprálková, Ludmila, Zhigunov, Alexander, Nevoralová, Martina

“…Structure and properties of poly(lactic acid) (PLA)/poly (ɛ-caprolactone) (PCL) influenced by graphite nanoplatelets (GNP) were studied in dependence on blend…”
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A simple method of evaluating non-isothermal crystallization kinetics in multicomponent polymer systems by Kratochvíl, Jaroslav, Kelnar, Ivan

“…A new simple method of evaluating non-isothermal crystallization kinetics is proposed. The procedure based on mathematical treatment of DSC cumulative…”
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Effect of halloysite nanotubes on the thermal degradation behaviour of poly(ε-caprolactone)/poly(lactic acid) microfibrillar composites by Luyt, Adriaan S., Kelnar, Ivan

“…This paper reports on the thermal degradation behaviour and kinetics of halloysite nanotubes containing microfibrillated poly(ε-caprolactone) (PCL)/poly(lactic…”
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Crystallization and thermal properties of melt-drawn PCL/PLA microfibrillar composites by Kelnar, Ivan, Kratochvíl, Jaroslav, Kaprálková, Ludmila

“…Microfibrillar composites (MFC) are advanced systems with reinforcement formed in situ by melt or cold drawing of suitable polymer blends. In the case of…”
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Composite films prepared from agricultural by-products by Šimkovic, Ivan, Kelnar, Ivan, Mendichi, Raniero, Bertok, Tomáš, Filip, Jaroslav

“…•Films from sugar beet and bagasse holocellulose were prepared and tested.•Specimens prepared from combined specia had the best mechanical properties.•All the…”
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Carboxymethylated-, hydroxypropylsulfonated- and quaternized xylan derivative films by SIMKOVIC, Ivan, KELNAR, Ivan, UHLIARIKOVA, Iveta, MENDICHI, Raniero, MANDALIKA, Anurag, ELDER, Thomas

“…Under alkaline/water conditions carboxymethyl, 2-hydroxypropylsulfonate and trimethylammonium-2-hydroxypropyl groups were introduced into xylan in one step…”
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