Fig. 1: Illustration of compression set tests described in ISO 815-1.

Compression Set

Rubber Sealing Performance Analysis – Comparison of Testing Techniques

Change in compression set of an elastomeric product with respect to time shows long-term sealing behavior of the material and indicates the quality of the product. more...

March 20. 2019 - Research news

Fig. 6: SEM images of  (a) GNR and ENR/GNR blend with different ENR/GNR ratios at (a) 85/15 ENR/GNR and (c) 50/50 ENR/GNR.

Morphological Studies

Physical Properties of recycled Latex Glove / Epoxidized natural Rubber Blend: Effect of natural graft Starch

Natural rubber glove (GNR) constitutes a considerable part of thermosetting waste in the environment in terms of volume. more...

March 15. 2019 - Research news

Fig. 1: Summation of slip volume flow and pressure volume flow.

Strömungsverhalten

Wall-slip effects and their dependence on the recipe- and molecular-weight-induced compound viscosity

Employing a high-pressure capillary viscometer, this study investigates the flow behavior of rubber compounds as a function of compound viscosity. more...

March 12. 2019 - Research news

Das Prozesshilfsmittel wird im Straßenbau für gummihaltigen  Asphalt eingesetzt. Bildquelle: alle Evonik Ressource Efificiency

Scrap tires – the new recycled construction material

Innovation for Road Construction

Autoreifen gehören auf die Straße? Stimmt schon. Aber seit rund zwei Jahrzehnten finden sie sich auch immer häufiger in der Straße. Möglich wird das durch recycelte Altreifen und ein Prozesshilfsmittel. Das Additiv ermöglicht, Gummimehl aus Altreifen zu einem gummihaltigen Asphalt zu verarbeiten. more...

February 20. 2019 - Tires in

Silica/Silane- Systems are the  basis for low rolling resistance tires. Copyright: Artur Marciniec/Fotolia.com

ETRMA

Overall Stability in European Tyre Replacement Sales

The European Tyre and Rubber Manufacturers’ Association published its members’ sales for the year 2018 as well as the last quarter of 2018. more...

February 19. 2019 - Product Review

Fig. 4_Hayeemasae

Material Characterization

A new magnetorheological Elastomer based on natural Rubber/Waste Natural Rubber Glove Blends

A new type of magnetorheological elastomer (MRE) is proposed, basing on the blending of NR and waste natural rubber glove (wNRg). more...

February 19. 2019 - Research news

Fig. 7: The improved method of material  parameter identification.

Fatigue Test

Improved Material Parameter Identification for End-of-Life Predictions under mechanical Fatigue

A new procedure for the material parameter identification is proposed. more...

February 19. 2019 - Research news

Fig. 4: Plausible crosslinking junctions for the vulcanized natural rubber.

Activation Energy of the Prevulcanization

Mechanism of Prevulcanization of Natural Rubber through Latex-State NMR Spectroscopy

Mechanism of prevulcanization of natural rubber (NR) was investigated by latex-state NMR spectroscopy. more...

February 18. 2019 - Research news

Samir_Kamel_

Ccharacterization and dielectric Evaluation

Rational Design of Cellulose/ Titanium Dioxide Nanocomposites

This work deals with preparation, characterization and dielectric evaluation of cellulose/titanium dioxide nanoparticles. These nanocomposites were successful prepared via emulsion technique in the presence of two different crosslinkers such as epichlorohydrin and glutardialdehyde. more...

February 15. 2019 - Research news

Das Klebesystem bietet einen guten  Kompromiss aus Flexibilität und Festigkeit. Die Klebesysteme haben nach circa 70 bis  80 Minuten die maximale Endfestigkeit  erreicht. Bildquelle: Sika

Klebesystem statt Heissvulkanisation

A fast, Efficient and reliable conveyor belt repair Method

Die strukturelle Reparatur von Gummikomponenten benötigt typischerweise eine Heissvulkanisation. Weit verbreitet sind auch Lösungsmittel-basierte Kaltkleber. Die dazu benötigten Schritte Rauhen, Voranstreichen, Belegen, Pressen und Heizen oder Kleben setzen eine lange Stillstandszeit voraus. Ein Acrylat-basiertes Klebesystem ermöglicht es, Gummikomponenten in kurzer Zeit wieder Instand zu setzen. more...

December 19. 2018 - Tires in

Eine Fließweglänge von 135 mm und überwiegende Wandstärken von 1 mm bei einem Schussgewicht von rund 85 g machen den Topflappen zu einem komplexen Bauteil. Bildquelle: Momentive

Virtual Optimisation for the right heating Concept

Virtual optimisation for the right heating concept

Gerade bei komplexen Bauteilen besteht die Gefahr, dass der Start der Produktion durch benötigte Änderungsschleifen des Werkzeugs nach hinten verschoben wird. Mit Hilfe moderner Simulationsansätze lassen sich Werkzeuge und Prozesse komplett am Computer auslegen, wodurch teure Nacharbeiten am realen Werkzeug entfallen. Im Falle eines komplexen LSR-Bauteils wurde das Heizkonzept so optimiert, dass das Werkzeug ab dem ersten Einsatz auf der Maschine gute Bauteile produzierte. more...

December 12. 2018 - Tires in

Fig. 5: (a) Formation of filler networking; (b) interaction between polymer-chains and filler particles.

CNTs in toluene and their Effects on the mechanical and electrical Properties

Effect of Sonication on mechanical and electrical Properties of Rubber Nanocomposites

Rubber nanocomposites were prepared by mixing room-temperature vulcanized (RTV) silicone rubber with pristine and sonicated carbon nanotubes (CNTs). more...

December 11. 2018 - Research news

Fig. 1: Dependence of dynamic viscosity on shear rate of rubber compounds based on SBR filled with different content of barium ferrite.

The Influence of Ferrite Content on dynamic Viscosity of Rubber

Barium Ferrite filled Composites based on SBR and NBR

Barium ferrite in concentration scale ranging from 0 to 200 phr was dosed to the rubber compounds based on SBR and two types of NBR. more...

December 10. 2018 - Research news

Fig. 2: Shore D indicator and testing method.

Tribological characteristics of pure poly(methyl methacrylate) (PMMA)

Influence of Adding Nano Graphene and Hybrid SiO2 – TiO2 Nano Particles on Tribological Characteristics of Polymethyl methacrylate (PMMA)

Tribological characteristics of pure poly(methyl methacrylate) (PMMA) reinforced with nano graphene and hybrid dioxides nano particles, SiO2 - TiO2, with weight fraction of 0.2%, 0.4%, 0.6%, 0.8% and 1% were investigated. more...

December 7. 2018 - Research news

Abb. 1: Schematische Darstellung der Bindungsmechanismen von Füllstoff zur Polymermatrix.

Acrylonitrile butadiene Rubber (NBR) in sealing Applications

Influence of fillers on the mechanical and tribological properties of acrylo-nitrile-butadiene-vulcanisates (NBR)

Acrylonitrile butadiene rubber (NBR) in sealing applications are highly reinforced with various fillers to improve their end-use properties. more...

December 5. 2018 - Research news

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