The effect of filling density on flammability and mechanical properties of 3D-printed carbon fiber-reinforced nylon

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F23%3A10252381" target="_blank" >RIV/61989100:27230/23:10252381 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/23:39920623 RIV/71226401:_____/23:N0100765

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0142941823000247" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0142941823000247</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymertesting.2023.107944" target="_blank" >10.1016/j.polymertesting.2023.107944</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of filling density on flammability and mechanical properties of 3D-printed carbon fiber-reinforced nylon

Popis výsledku v původním jazyce

3D printing of reinforced polymeric materials, which provides products of excellent physical and mechanical properties, is at the forefront of interest in the field of additive technologies. To ensure material, time, and financial savings, 3D objects having reduced filling density are frequently prepared. The presented work aims to study the effect of different levels of filling density (18, 42, and 62% using a honeycomb filling pattern) in contrast to 100% solid fill of carbon fiber-reinforced polyamide 6.6 materials processed by Fused Filament Fabrication on their flammability and mechanical properties. Concurrently, the effect of a commercial flame retardant additive concerning the filling density was also evaluated. The flammability and mechanical properties of the 3D printed materials were evaluated according to cone calorimeter measurements, and tensile and bending tests, respectively. It was found that the reduction in the filling density led to a pronounced decrease in me-chanical properties (of about 40-50% for tensile and bending stress) and also to the deterioration of flame resistance (of about 50-70% shorter burning time), with no unambiguous correlation with the respective filling density level used. If significant economic savings are preferred, 3D objects designed with low levels of filling density (18 or 42%) are advantageous to be manufactured from nylon stabilized with a flame retardant additive, resulting in acceptable fire-resistant properties.

Název v anglickém jazyce

The effect of filling density on flammability and mechanical properties of 3D-printed carbon fiber-reinforced nylon

Popis výsledku anglicky

3D printing of reinforced polymeric materials, which provides products of excellent physical and mechanical properties, is at the forefront of interest in the field of additive technologies. To ensure material, time, and financial savings, 3D objects having reduced filling density are frequently prepared. The presented work aims to study the effect of different levels of filling density (18, 42, and 62% using a honeycomb filling pattern) in contrast to 100% solid fill of carbon fiber-reinforced polyamide 6.6 materials processed by Fused Filament Fabrication on their flammability and mechanical properties. Concurrently, the effect of a commercial flame retardant additive concerning the filling density was also evaluated. The flammability and mechanical properties of the 3D printed materials were evaluated according to cone calorimeter measurements, and tensile and bending tests, respectively. It was found that the reduction in the filling density led to a pronounced decrease in me-chanical properties (of about 40-50% for tensile and bending stress) and also to the deterioration of flame resistance (of about 50-70% shorter burning time), with no unambiguous correlation with the respective filling density level used. If significant economic savings are preferred, 3D objects designed with low levels of filling density (18 or 42%) are advantageous to be manufactured from nylon stabilized with a flame retardant additive, resulting in acceptable fire-resistant properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20300 - Mechanical engineering

Projekt

<a href="/cs/project/EF17_049%2F0008407" target="_blank" >EF17_049/0008407: Inovativní a aditivní technologie výroby - nová technologická řešení 3D tisku kovů a kompozitních materiálů</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Polymer testing

ISSN

0142-9418

e-ISSN

1873-2348

Svazek periodika

120

Číslo periodika v rámci svazku

107944

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000963885900001

EID výsledku v databázi Scopus

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