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

Result code in 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>

Alternative codes found

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

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

20300 - Mechanical engineering

Project

<a href="/en/project/EF17_049%2F0008407" target="_blank" >EF17_049/0008407: Innovative and additive manufacturing technology - new technological solutions for 3D printing of metals and composite materials</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Name of the periodical

Polymer testing

ISSN

0142-9418

e-ISSN

1873-2348

Volume of the periodical

120

Issue of the periodical within the volume

107944

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

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UT code for WoS article

000963885900001

EID of the result in the Scopus database

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