Tailoring the Curing Kinetics of NBR-Based Rubber Compounds for Additive Manufacturing of Rod Seals

authored by: Lion Sundermann, Sebastian Leineweber, Benjamin Klie, Heike Wittek, Thomas Ebel, Birger Reitz, Kathrin Ottink, Matthias Graf, Tobias Lankenau, Ludger Overmeyer, Ulrich Giese
Abstract: The additive manufacturing (AM) of elastomeric parts based on high-viscosity reinforced rubbers has increasingly become a topic of scientific research in recent years. In addition to the viscosity, which is several decades higher during processing than the viscosities of thermoplastics, the flowability of the compound after the printing process and the necessary chemical crosslinking of the printed component play a decisive role in producing an elastic, high-quality, and geometrically stable part. After the first technological achievements using the so-called additive manufacturing of elastomers (AME) process, the knowledge gained has to be transferred first to concrete industrial parts. Therefore, in this study, the cure kinetics of a conventional rubber compound are tailored to match the specific requirements for scorch safety in the additive manufacturing of an industrial 2-component rod seal based on an acrylonitrile butadiene rubber O-ring in combination with a thermoplastic polyurethane as the base body. Experimental tests on a test rig for rod seals demonstrate the functionality of this additively manufactured 2-component rod seal.
Organisation(s): Institute of Transport and Automation Technology
External Organisation(s): German Institute of Rubber Technology (DIK e.V.)
University of Applied Sciences Emden/Leer
Type: Article
Journal: Advances in polymer technology
Volume: 2023
ISSN: 0730-6679
Publication date: 22.08.2023
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Chemical Engineering, Organic Chemistry, Polymers and Plastics
Electronic version(s): https://doi.org/10.1155/2023/7343194 (Access: Open)

BibTeX

@article{a8349e08b96f454fae498c1afb582681,
title = "Tailoring the Curing Kinetics of NBR-Based Rubber Compounds for Additive Manufacturing of Rod Seals",
abstract = "The additive manufacturing (AM) of elastomeric parts based on high-viscosity reinforced rubbers has increasingly become a topic of scientific research in recent years. In addition to the viscosity, which is several decades higher during processing than the viscosities of thermoplastics, the flowability of the compound after the printing process and the necessary chemical crosslinking of the printed component play a decisive role in producing an elastic, high-quality, and geometrically stable part. After the first technological achievements using the so-called additive manufacturing of elastomers (AME) process, the knowledge gained has to be transferred first to concrete industrial parts. Therefore, in this study, the cure kinetics of a conventional rubber compound are tailored to match the specific requirements for scorch safety in the additive manufacturing of an industrial 2-component rod seal based on an acrylonitrile butadiene rubber O-ring in combination with a thermoplastic polyurethane as the base body. Experimental tests on a test rig for rod seals demonstrate the functionality of this additively manufactured 2-component rod seal.",
author = "Lion Sundermann and Sebastian Leineweber and Benjamin Klie and Heike Wittek and Thomas Ebel and Birger Reitz and Kathrin Ottink and Matthias Graf and Tobias Lankenau and Ludger Overmeyer and Ulrich Giese",
note = "Funding Information: The work was funded by the Deutsche Forschungsgemeinschaft (DFG) (project no. 447009134). Open Access funding enabled and organized by Projekt DEAL",
year = "2023",
month = aug,
day = "22",
doi = "10.1155/2023/7343194",
language = "English",
volume = "2023",
journal = "Advances in polymer technology",
issn = "0730-6679",
publisher = "John Wiley and Sons Inc.",
}