Preparation, Thermal Behavior and Dynamic Mechanical Analysis of Basalt Fiber/Epoxy Composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63520178" target="_blank" >RIV/70883521:28110/18:63520178 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Preparation, Thermal Behavior and Dynamic Mechanical Analysis of Basalt Fiber/Epoxy Composites

Popis výsledku v původním jazyce

Nowadays, the use of basalt fibers in polymer matrix composites is continuously increasing due to their superior properties. Basalt fibers can be produced through the use of basalt rocks and they are not biodegradable [1]. A common material, which is used as matrix in the polymer matrix composites, is the epoxy which in various research studies has proved great advantages such as very good corrosion and chemical resistance. A critical point in the investigation of the materials’ mechanical behavior is how their properties are influenced by fluctuations of the temperature. In case of high temperature application on the materials, it is essential to know how their properties are affected and also which their maximum working temperature is. Furthermore, fiber reinforced polymer (FRP) composites are usually used in demanding level applications where the predictable mechanical behavior, under a hard working environment, is absolutely necessary. Dynamic Mechanical Analysis (DMA) is an optimal method for the investigation of the materials’ viscoelastic behavior. By this technique, can be simulated real life conditions such as high temperatures and also to be determined the glass transition temperature (Tg) which is a crucial point in the materials’ behavior. It should be noted that there are many methods for the specification of the Tg, so in order to avoid unequal comparisons, it must be mentioned the method which was used. In this study, Basalt fiber/epoxy composites, consisted of 40% matrix and 20 layers, were prepared by a hand lay-up compression molding combined method. By DMA experiments, at high temperatures or frequencies, the dynamic mechanical properties of them in terms of storage modulus, loss modulus, tanδ and Tg were explored whereas TMA was carried out for their thermal analysis. Moreover, the Tg of the composites was determined through various methods, such as peak values of loss modulus or tanδ, and some conclusions between them were drawn. Also, the advantages of the combined fabrication method are evaluated and discussed.

Název v anglickém jazyce

Preparation, Thermal Behavior and Dynamic Mechanical Analysis of Basalt Fiber/Epoxy Composites

Popis výsledku anglicky

Nowadays, the use of basalt fibers in polymer matrix composites is continuously increasing due to their superior properties. Basalt fibers can be produced through the use of basalt rocks and they are not biodegradable [1]. A common material, which is used as matrix in the polymer matrix composites, is the epoxy which in various research studies has proved great advantages such as very good corrosion and chemical resistance. A critical point in the investigation of the materials’ mechanical behavior is how their properties are influenced by fluctuations of the temperature. In case of high temperature application on the materials, it is essential to know how their properties are affected and also which their maximum working temperature is. Furthermore, fiber reinforced polymer (FRP) composites are usually used in demanding level applications where the predictable mechanical behavior, under a hard working environment, is absolutely necessary. Dynamic Mechanical Analysis (DMA) is an optimal method for the investigation of the materials’ viscoelastic behavior. By this technique, can be simulated real life conditions such as high temperatures and also to be determined the glass transition temperature (Tg) which is a crucial point in the materials’ behavior. It should be noted that there are many methods for the specification of the Tg, so in order to avoid unequal comparisons, it must be mentioned the method which was used. In this study, Basalt fiber/epoxy composites, consisted of 40% matrix and 20 layers, were prepared by a hand lay-up compression molding combined method. By DMA experiments, at high temperatures or frequencies, the dynamic mechanical properties of them in terms of storage modulus, loss modulus, tanδ and Tg were explored whereas TMA was carried out for their thermal analysis. Moreover, the Tg of the composites was determined through various methods, such as peak values of loss modulus or tanδ, and some conclusions between them were drawn. Also, the advantages of the combined fabrication method are evaluated and discussed.

Druh

O - Ostatní výsledky

CEP obor

—

OECD FORD obor

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

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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