Der Konzeptreifen ‚Large & Narrow‘ von Bridgestone gehört zu einer neuen Reifenkategorie, durch die Autos noch mehr Kraftstoff als bisher einsparen können; zudem hat der Reifen eine leicht verbesserte Nasshaftung (Bild: Bridgestone)

Bridgestone announces Susym – a Polymer that Bonds Rubbers and Resins on the Molecular Level

Bridgestone Corporation announced that the name for the world's first polymer that bonds rubbers and resins on the molecular level is Susym. The next-generation polymer material can be used not only for tyres but also in other applications. more...

December 17. 2019 - News

Fig. 9: Transmission light microscopy image on an undeformed rubber foil (thickness ≈ 200 µm) of compound R2. The numbered ground rubber particles were used for the measurement of the particle strain.

Rubber-Recycling

Modification of Ground Rubber with Conventional Fillers by Process Engineering

Carbon black loaded elastomer materials were ground into small rubber particles and covered in situ with conventional fillers like carbon black and hydrophobated silica. more...

December 11. 2019 - Research news

Fig. 1: An experimental testing machine for uniaxial stressing of elastomer samples.

Education in Elastomer-Physics

Experimental testing Machine for Elastomers for Educational Purposes and Didactics

This article describes the design, construction and operation of an experi­mental testing machine as part of student works, and deals with the sequence and results of a series of elastomer samples. more...

December 10. 2019 - Research news

Fig. 1: Experimental setup of high-pressure capillary rheometer test.

Mooney-Geiger-Method

Navier’s slip Coefficient Determination of Silicone Rubber Compound by means of High- Pressure Capillary Rheometer

The unique properties of silicone rubber, such as high heat and chemical resistance are the main reasons for its growing importance in the industry [1]. more...

December 10. 2019 - Research news

Fig. 1: Percolation behaviour of electrically conductive rubber materials depending on the amount and type of the electrically conductive filler material [9, 10].

Vulcanisation of tick-walles products

Heating and Vulcanisation of Rubber Hybrid Materials through electrical Resistance Heating

Rubber compounds contain different components, including crosslinking chemicals. The homogeneous and energy-efficient vulcanisation of thick-walled rubber components is a challenge. more...

December 10. 2019 - Research news

Weltpremiere für den Zwei-Komponenten-AMM-Prozess auf der K 2019: Die Silikondichtung wird an die Gehäuseteile aus amorphem Metall direkt angespritzt. Bildquelle: alle Engel

Combined with polymers for the first time

AMM at K 2019: combined with polymers for the first time

Der Mehrkomponentenspritzguss verzeichnet wachsende Marktanteile – ein Trend, der sich auch weiterhin dynamisch entwickeln wird. Überproportional wachsen Mehrkomponentenanwendungen mit Silikon. Die Gründe hierfür liegen in den besonderen Materialeigenschaften, der sehr guten Verarbeitbarkeit im Spritzguss und der steigenden Zahl geeigneter Materialpartner. Auf der K 2019 in Düsseldorf präsentiert Engel erstmals die Kombination von Flüssigsilikon mit amorphem Metall und eröffnet damit vor allem im Hightech-Sektor neue Horizonte. more...

October 14. 2019 - Tires in

Konkrete Lösungen im Bereich der vernetzten Produktion – Industrie 4.0 – in der Elastomerverarbeitung werden auf der K 2019 präsentiert. Bildquelle: alle Klöckner Desma Elastomertechnik

Sinnvolle Zusammenführung von Automatisierung, Digitalisierung und Prozesssteuerung

Digitization for less Complexity and more Sustainability

Die Zunahme von Komplexität, Flexibilität, Volatilität, sich verkürzender Planungshorizonte, Geschwindigkeit, Präzision und Qualität, setzen bisherige Geschäfts- und Methodenmodelle einem Stresstest und mit teilweise hohem Tempo anzugehenden Veränderungen aus. Das Unternehmen Desma bietet durch die sinnvolle Kombination von Maschinenanwendungen mit digitalen Werkzeugen die Voraussetzungen dafür, dass sich die Elastomerverarbeiter im Wandel der Zeit weiterhin wettbewerbsfähig positionieren können. more...

October 14. 2019 - Tires in

Abb. 1: Chip & Cut Verschleiß bei LKW Reifen.[1]

Testmethods crack growth

Improvement of laboratory predictions regarding crack propagation and wear of truck tire treads

In this paper improved concepts regarding the prediction of dynamic crack growth in truck tire tread compounds under praxis conditions are presented and optimized with respect to the special application „chip & cut wear“ appearing under high severity conditions. more...

October 9. 2019 - Research news

Fig. 1: Screw configuration used in present work.

Response Surface Methodology

Effects of the Extrusion Parameters of a Co-Rotating Twin Screw Extruder and their Interactions on the Properties of Carbon Black filled Styrene-Butadiene Rubber

The filler dispersion in a premixed compound prepared using an internal mixer was further improved by an intermeshing co-rotating twin screw extruder (TSE). more...

October 7. 2019 - Research news

Abb. 13: Querschnitte von Stahlseilen mit Elastomer-Anhaftungen nach abgeschlossenen Festigkeitsuntersuchungen zur Beurteilung der Elastomer-Durchdringung: Versuchsreihe 7 bei konventionellem Heizverfahren (links) und Versuchsreihe 8 bei kombiniertem Heizverfahren und  (rechts).

Vulcanization of Conveyor Belts

An Inductive Heating Method for Manufacturing of Plastic Metal Composites in Application for Splices of Steel Cord Conveyor Belts – Part 2

Steel cord conveyor belts are used on belt conveyors to transport bulk materials. more...

October 4. 2019 - Research news

Fabio Bacchelli_

S-SBR with Bio-Plasticizers

Matching processability, Performance and Sustainability in SBR Compounds

It is well known, that solution polymerization of SBR allows a better control of microstructure and chain architecture for optimum performance of the vulcanizate than emulsion polymerization. more...

October 1. 2019 - Research news

Fig. 1: Uncovered load bearing elements of bias truck tire.

The influence of neglecting cord shrinkage and cord characteristic linearization on simulation results

Burst Test Simulation for bias Truck Tire

A model of a pneumatic bias tire based on the technique of overlaying the orthotropic reinforcing elements on isotropic rubber elements is presented. more...

September 13. 2019 - Research news

Fig. 3: Comparison  between the times of maximum intensity for the compositions of GEB NR and Latex NR.

The influence of the used methods of processing for incorporating mica as filler into the NR

Determination of Aging behavior of natural Rubber Nanocomposites reinforced with Mica prepared by Latex or Melt mixing Technology

The aim was to research the aging behavior of natural rubber compositions (NR) with synthetic mica by chemiluminescence (CL), in comparison with the traditional test of accelerated aging in forced air circulation with respect to the stress strain properties. more...

September 12. 2019 - Research news

Fig. 2: UFR of oligoisoprene synthesized inmethyl alcohol solution: conversion curve (a) and second-order curve (b). [OH] = 0.963 eqv. L-1

The kinetics of the urethane formation reaction between hydroxyl-containing oligodienes HTPB obtained

Urethane Formation Reaction in Oligodienes Obtained in Solutions of Alcohols under the Action of Hydrogen Peroxide

The kinetics of the urethane formation reaction between hydroxyl-containing oligodienes HTPB obtained by the action of hydrogen peroxide in alcohol solutions, and phenyl isocyanate has been studied. more...

September 11. 2019 - Research news

Fig. 5: Determination of the crosslink density by the Mooney-Rivlin approach.

The crosslink density of rubber compounds influences the in-rubber properties of the final product to a great extent

Determination of the Crosslink Density of Tire Tread Compounds by Different Analytical Methods

The crosslink density of rubber compounds influences the in-rubber properties of the final product to a great extent. more...

September 10. 2019 - Research news

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