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

IF 2 4区工程技术 Q3 ENGINEERING, CHEMICAL

Advances in Polymer Technology Pub Date : 2023-08-22 DOI:10.1155/2023/7343194

Lion Sundermann, Sebastian Leineweber, B. Klie, Heike Wittek, T. Ebel, B. Reitz, Kathrin Ottink, Matthias Graf, Tobias Lankenau, L. Overmeyer, U. Giese

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引用次数: 1

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.

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为增材制造杆密封件定制nbr基橡胶化合物的固化动力学

近年来，以高粘度增强橡胶为基础的弹性体零件增材制造日益成为科学研究的课题。除了在加工过程中比热塑性塑料的粘度高几十年的粘度外，打印过程后化合物的流动性和打印组件的必要化学交联对于生产具有弹性，高质量和几何稳定的部件起着决定性作用。在使用所谓的弹性体增材制造(AME)工艺取得第一批技术成果后，所获得的知识必须首先转移到具体的工业部件上。因此，在本研究中，对传统橡胶化合物的固化动力学进行了定制，以满足基于丙烯腈丁二烯橡胶o型圈与热塑性聚氨酯作为基体的工业双组份杆密封增材制造中对烧焦安全性的特定要求。在杆密封试验台上进行的实验测试证明了这种增材制造的双组分杆密封的功能。

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来源期刊

Advances in Polymer Technology 工程技术-高分子科学

CiteScore

5.50

自引率

0.00%

发文量

审稿时长

9 months

期刊介绍： Advances in Polymer Technology publishes articles reporting important developments in polymeric materials, their manufacture and processing, and polymer product design, as well as those considering the economic and environmental impacts of polymer technology. The journal primarily caters to researchers, technologists, engineers, consultants, and production personnel.