Effect of Micro- And Nano-fillers on the Coefficient of Thermal Expansion of Composite Systems with Potential Applications in Stomatology

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F22%3A00010159" target="_blank" >RIV/46747885:24210/22:00010159 - isvavai.cz</a>

Result on the web

<a href="https://www.confer.cz/nanocon/2022/read/4603-effect-of-micro-and-nano-fillers-on-the-coefficient-of-thermal-expansion-of-composite-systems-with-potential-applications-in-stomatology.pdf" target="_blank" >https://www.confer.cz/nanocon/2022/read/4603-effect-of-micro-and-nano-fillers-on-the-coefficient-of-thermal-expansion-of-composite-systems-with-potential-applications-in-stomatology.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2022.4603" target="_blank" >10.37904/nanocon.2022.4603</a>

Result language

angličtina

Original language name

Effect of Micro- And Nano-fillers on the Coefficient of Thermal Expansion of Composite Systems with Potential Applications in Stomatology

Original language description

This experimental study aims to assess the effect of selected filler types on the longitudinal thermal expansion of composite systems. The studied issue concerns the dimensional stability or durability of white dental fillings, composite systems of photo polymerizing polymer with particulate fillers of micrometer and nanometer dimensions, mainly based on silica and zirconia. ChS Epoxy 455 epoxy resin cured with P11 hardener was used as the matrix of the composite systems on which the effect of selected filler types was evaluated. The fillers were particulate and fibrous materials of different chemical compositions, sizes, and combinations. Synthetic silica nanoparticles, cellulose particles, hybrid fillers derived from modified rice husk, and cellulose nanocrystals were used as fillers. The longitudinal thermal expansion of the prepared composite systems was evaluated in the temperature range of 20 ° to 40 °C, which corresponds to the temperatures to which dental fillings are usually exposed. The selected fillers fracture surfaces of samples were analyzed on a scanning electron microscope, and the longitudinal thermal expansion was measured on a thermomechanical analyzer. Based on the dimensions and chemical compositions of fillers used, the quality of the interphase, and the arrangement of the fillers in the polymer matrix, the contribution of these reinforcing elements to the potential influence of the thermal expansion coefficient was evaluated. In view of results obtained, the following experiments will focus on the study of material combinations of particulate and fibrous fillers, the evaluation of the influence of the environment on materials, and machinability.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

<a href="/en/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybrid Materials for Hierarchical Structure</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

NANOCON 2022

ISBN

978-80-88365-09-9

ISSN

2694-930X

e-ISSN

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Number of pages

7

Pages from-to

216-222

Publisher name

TANGER Ltd.

Place of publication

Brno

Event location

Brno, Czech Republic

Event date

Jan 1, 2022

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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