Frequency Dependence of Glass Transition Temperature of Thermoplastics in DMA Analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F26%3A00566052" target="_blank" >RIV/60162694:G43__/26:00566052 - isvavai.cz</a>

Výsledek na webu

<a href="https://journalmt.com/pdfs/mft/2025/03/13.pdf" target="_blank" >https://journalmt.com/pdfs/mft/2025/03/13.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/mft.2025.043" target="_blank" >10.21062/mft.2025.043</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Frequency Dependence of Glass Transition Temperature of Thermoplastics in DMA Analysis

Popis výsledku v původním jazyce

The aim of this study is to investigate the effect of oscillatory loading frequency on the dynamic-mechanical properties of 3D printed thermoplastics, namely acrylonitrile-butadiene-styrene (ABS), glycol-modified polyethylene terephthalate (PETG), and polylactide, also known as polylactic acid (PLA). The investigated samples were manufactured using fused filament fabrication (FFF) technology and tested at different oscillation frequencies (1, 5, 10, 15 and 20 Hz). Dynamic mechanical analysis (DMA) demonstrated that an increase in the oscillation frequency causes an increase in the glass transition temperature (Tg) for all analyzed materials, while in the case of the used loading frequencies above 5 Hz, an almost linear dependence between the magnitude of the applied frequency and Tg was observed. The findings also show that with increasing frequency of mechanical loading, there are changes in the viscoelastic properties of the investigated polymers, specifically in the value of the storage modulus (E '), loss modulus (E '') and loss angle (tan delta), which points to the complex behavior of the materials under dynamic conditions. The results of this study provide valuable insights for the use of 3D printed polymer materials in applications where they are exposed to dynamic stress-in the automotive or aerospace industries.

Název v anglickém jazyce

Frequency Dependence of Glass Transition Temperature of Thermoplastics in DMA Analysis

Popis výsledku anglicky

The aim of this study is to investigate the effect of oscillatory loading frequency on the dynamic-mechanical properties of 3D printed thermoplastics, namely acrylonitrile-butadiene-styrene (ABS), glycol-modified polyethylene terephthalate (PETG), and polylactide, also known as polylactic acid (PLA). The investigated samples were manufactured using fused filament fabrication (FFF) technology and tested at different oscillation frequencies (1, 5, 10, 15 and 20 Hz). Dynamic mechanical analysis (DMA) demonstrated that an increase in the oscillation frequency causes an increase in the glass transition temperature (Tg) for all analyzed materials, while in the case of the used loading frequencies above 5 Hz, an almost linear dependence between the magnitude of the applied frequency and Tg was observed. The findings also show that with increasing frequency of mechanical loading, there are changes in the viscoelastic properties of the investigated polymers, specifically in the value of the storage modulus (E '), loss modulus (E '') and loss angle (tan delta), which points to the complex behavior of the materials under dynamic conditions. The results of this study provide valuable insights for the use of 3D printed polymer materials in applications where they are exposed to dynamic stress-in the automotive or aerospace industries.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21100 - Other engineering and technologies

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

MANUFACTURING TECHNOLOGY

ISSN

1213-2489

e-ISSN

—

Svazek periodika

25

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

341-347

Kód UT WoS článku

001567642600006

EID výsledku v databázi Scopus

—