Frequency Dependence of Glass Transition Temperature of Thermoplastics in DMA Analysis

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Frequency Dependence of Glass Transition Temperature of Thermoplastics in DMA Analysis

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

21100 - Other engineering and technologies

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

MANUFACTURING TECHNOLOGY

ISSN

1213-2489

e-ISSN

—

Volume of the periodical

25

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

7

Pages from-to

341-347

UT code for WoS article

001567642600006

EID of the result in the Scopus database

—