Preparation and Characterization of Hybrid Nanocomposites for Dental Applications

Gawdzińska, K.; Paszkiewicz, Sandra; Piesowicz, Elżbieta; Bryll, Katarzyna; Irska, Izabela; Lapis, Agnieszka; Sobolewska, Ewa; Kochmańska, A.; Ślączka, Wojciech

doi:10.3390/app9071381

Cited by 12 publications

(10 citation statements)

References 64 publications

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“…The absorption tests were carried out in accordance with the standard IEC 60502-2 according to the procedure described in the standard IEC 60811-402, whereas the details of the procedure can be found in our open-access paper [ 35 ].…”

Section: Methodsmentioning

confidence: 99%

“…On TGA curves for pristine ATH and ATH-sil (Figure 7a), one can observe clear differences. The detailed analysis on these two materials can be found in our previously published paper [35], but in brief: pristine ATH exhibited two mass losses: the first one in the temperature range of 20-165 • C corresponds to the loss of adsorbed water [14] and the second major mass loss in the temperature range of 180-600 • C corresponds to the decomposition of surfactant molecules [44]. In turn, the ATH-sil decomposes in one major step, however, its decomposition temperature was improved by about 20 • C. It is especially well observed at the DTG, where the maximum of thermal decomposition has been shifted from 288 • C (pristine ATH) to 300 • C for the ATH-sil.…”

Section: T50% (°C) Referencementioning

confidence: 99%

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Halloysite Nanotubes and Silane-Treated Alumina Trihydrate Hybrid Flame Retardant System for High-Performance Cable Insulation

et al. 2021

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The effect of the presence of halloysite nanotubes (HNTs) and silane-treated alumina trihydrate (ATH-sil) nanofillers on the mechanical, thermal, and flame retardancy properties of ethylene-vinyl acetate (EVA) copolymer/low-density polyethylene (LDPE) blends was investigated. Different weight percentages of HNT and ATH-sil nanoparticles, as well as the hybrid system of those nanofillers, were melt mixed with the polymer blend (reference sample) using a twin-screw extruder. The morphology of the nanoparticles and polymer compositions was studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The mechanical properties, hardness, water absorption, and melt flow index (MFI) of the compositions were assessed. The tensile strength increases as a function of the amount of HNT nanofiller; however, the elongation at break decreases. In the case of the hybrid system of nanofillers, the compositions showed superior mechanical properties. The thermal properties of the reference sample and those of the corresponding sample with nanofiller blends were studied using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Two peaks were observed in the melting and crystallization temperatures. This shows that the EVA/LDPE is an immiscible polymer blend. The thermal stability of the blends was improved by the presence of HNTs and ATH-sil nanoparticles. Thermal degradation temperatures were shifted to higher values by the presence of hybrid nanofillers. Finally, the flammability of the compositions was assessed. Flammability as reflected by the limiting oxygen index (OI) was increased by the presence of HNT and ATH-sil nanofiller and a hybrid system of the nanoparticles.

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Section: Methodsmentioning

confidence: 99%

Section: T50% (°C) Referencementioning

confidence: 99%

Halloysite Nanotubes and Silane-Treated Alumina Trihydrate Hybrid Flame Retardant System for High-Performance Cable Insulation

et al. 2021

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“…Significant bone resorption following teeth extractions deteriorates the clinical conditions for satisfactory denture retention and stability; retention and stability clearly decrease after several years [5,6]. Efforts have been made to develop a material for dental prostheses with the best functional properties [7]. Retention of dentures can be improved by using denture adhesives or relining dentures.…”

Section: Introductionmentioning

confidence: 99%

Cytotoxic Potential of Denture Adhesives on Human Fibroblasts—In Vitro Study

et al. 2022

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(1) In recent years, there has been a significant increase in the availability of denture adhesives for stabilizing removable dentures. The aim of the present study was to assess the cytotoxicity of three denture adhesives on human fibroblasts. (2) Methods: Three denture adhesives were analyzed. Fibroblast cultures were established for the study and control groups in order to assess the incidence of necrosis and to evaluate the microscopic intracellular alterations induced. Following incubation with (study groups) or without adhesives (control group), trypan blue dye exclusion assay was used to determine the number of viable and/or dead cells. Microscopic specimens were stained with haematoxylin and eosin, scanned, digitally processed and then analyzed by a histopathologist. (3) Results: All three denture adhesives analyzed demonstrated various toxic effects in vitro on human fibroblast: quantitative evaluation—45.87–61.13% reduction of cell viability (p = 0.0001) and slight to moderate cytotoxicity in qualitative evaluation. (4) Conclusions: Denture adhesive creams demonstrated a toxic effect on human fibroblasts in vitro in quantitative and qualitative evaluation. In vivo observations are needed to find out if denture adhesives present a cytotoxic effect in patients.

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“…Polymer Matrix Composites (PMC) can be an extremely beneficial solution in many aspects of engineering technology [1][2][3][4]. However, they can also significantly threaten the natural environment.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Decomposition using the Short Degradation Technique of Polylactic Acid/Halloysite Nanotube Biocomposites

Czarnecka-Komorowska,

Kostecka,

Bryll

et al. 2022

MATEC Web Conf.

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The article presents results on the decomposition of polylactic acid (PLA)/halloysite nanotube (HNT) biocomposites. Experiments were carried out in laboratory conditions simulating composting in the industrial pile using the so-called short degradation method. In this paper, the effects of the composting process (duration from 30 to 90 days) on the behavior of PLA/HNT composites were studied. In addition, the selected physicochemical properties of PLA/HNTs biocomposites such as the average molecular weight were investigated. The results obtained confirmed the viability of composting PLA with halloysite which contributes to the reduction of plastic waste and the use of this material in technological applications.

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Preparation and Characterization of Hybrid Nanocomposites for Dental Applications

Cited by 12 publications

References 64 publications

Halloysite Nanotubes and Silane-Treated Alumina Trihydrate Hybrid Flame Retardant System for High-Performance Cable Insulation

Halloysite Nanotubes and Silane-Treated Alumina Trihydrate Hybrid Flame Retardant System for High-Performance Cable Insulation

Cytotoxic Potential of Denture Adhesives on Human Fibroblasts—In Vitro Study

Analysis of the Decomposition using the Short Degradation Technique of Polylactic Acid/Halloysite Nanotube Biocomposites

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