Fig. 2: (a) S-XANES spectra of the unextracted sulfur cross-linked IR and the references for the linear combination fitting method.

Spectroscopy of a sulfidic structure of isoprene rubber (IR)

Effect of solvent Extractions on a linear Combination fitting in sulfur K-edge X-ray Absorption near edge structure Spectroscopy for Sulfur cross-linked Rubber

Necessity of solvent extractions in the linear combination fitting method of sulfur K-edge X-ray absorption near edge structure (S-XANES) spectroscopy is described for evaluation of a sulfidic structure of isoprene rubber (IR) vulcanizate prepared using N-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine as an accelerator, and zinc oxide and stearic acid as activators. more...

June 20. 2018 - Research news

Fig. 1: Temperature dependences of PFs for PIR with various content of 6PPD.

Synergy/antagonism in the stabilizer mixture

Performance of Antioxidants for Rubber Matrices evaluated by differential Scanning Calorimetry

The aim of this paper is to present a method for the evaluation of the stabilizing effect of various antioxidants and their mixtures in rubber matrices. more...

May 17. 2018 - Research news


Crack Propagation of Vulcanized Rubber

Ozone-Resistivity of Isoprene Rubber mixed with a Wax as an Antiozonant at below Freezing

Effect of wax on the ozone resistance of vulcanized natural rubber (NR) and vulcanized isoprene rubber (IR) was investigated by observing crack propagation of the vulcanized rubbers at 40°C and -30°C under 50 pphm ozone atmosphere. The ozone exposure test for the vulcanized rubbers was performed, after the wax bloomed at 40°C under a strain of 0.2. more...

March 12. 2018 - Research news


Size exclusion chromatography and EPR-spectroscopy

Mechanochemical Halide Modification of Butyl Rubber by Means of Swelling

In the present work the process of mechanochemical halide modification was investigated. By means of size exclusion chromatography and EPR-spectroscopy it was found, that when swell-ing in a solvent, mechanical degradation of the macro molecules of the rubber into macro radi-cals occurred. more...

August 4. 2017 - Research news


Layered Silicates and organoclay-Additive

A Short Review on Hybrid Clay/Rubber Nanocomposites

The review is particularly focused on clay (layered silicates), organoclay and rubber nanocomposites reported in the period from 2005 to 2015. The review covers the investigations carried out on the preparation techniques, modifications with several chemical compounds as quaternary alkylammonium salts and also biomolecules as enzymes that provide applicability in a variety of fields of […] more...

June 6. 2016 - Research news

Bildquelle: Prof. Nikolay Dishovsky, Ph.D, DSc. University of Chemical Technology and Metallurgy Dept. Polymer Engineering 1756 Sofia, Bulgaria

Carbon-Silica Hybrid Fillers

Comparative Study of the Phase Distribution in Carbon-Silica Hybrid Fillers for Rubber obtained by different Impregnation Technologies

Dual phase fillers of the type carbon black-silica have been prepared by two different technologies. more...

May 2. 2016 - Research news


Lehigh Technologies starts subsidiary in Spain

Lehigh Technologies, a US-based company that produces micronized rubber powders (MRP) from waste rubber materials, announced the formal opening of their subsidiary Lehigh Spain in Barcelona. The subsidiary enhances global access to MRP. more...

June 18. 2015 - News


Fundamental Study and alternative Methods for the Evaluation of the Wall-Slipping Effect for Highly Viscose Rubber Mixtures

The phenomenon of wall-slipping is particularly common in rubber mixtures and represents a difficult flow anomaly to be described. In the literature exist neither a uniform model concept nor reliable measuring methods for the detection and quantification of wallslipping. more...

December 8. 2014 - Research news


Polystyrene-Butadiene grafted Imide-Imine for Enhancing Adhesion between Rubber and Polypropylene fibers

Acrylic acid reacted with ethylene diamine to give amide- imine oligomer. This oligomer was grafted to polystyrene-butadiene rubber. The oligomer structure was elucidated using FT-IR, 1H- NMR, 13C-NMR and mass spectroscopy. more...

October 7. 2014 - Research news

Additives & Fillers

Graphene Reinforced Synthetic Isoprene Rubber Nanocomposites

Nanofillers have been investigated recently to improve desired characteristic properties of rubber nanocomposites. In this work, commercially available exfoliated Graphene nanoPlatlets (xGnPs) of types xg C750 and xg M5 were used as nanofillers and N234 was used as a traditional filler. more...

October 7. 2014 - Research news

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German Rubber Conference

Impressions of the DKG Conference 2014


June 30. 2014 - News


Abrasive wear Behaviors of several Rubber Conveyor Belt Materials used in different Working Conditions

The abrasive wear is caused by conveyed materials such as coal, granite and hard rock in belt conveyors. It is expected that abrasion resistance of rubber belts is high. Conveyor belts are exposed to different working conditions such as natural weathering, oil, acid, thermal cycling and accelerated ageing during service life. more...

May 22. 2014 - Research news

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Automated molding, or gluing, of shoe soles

The Robot as master craftsman in shoemaking

Klöckner Desma Schuhmaschinen, the leading international manufacturer of automated footware fabrication machines, is located in Achim, Germany, near Bremen. Using predominantly rubber - or plastic- based materials, the company has developed a specialized process for the molding, or gluing, of soles directly to the shoe shaft. more...

May 21. 2014 - Tires in

EPDM waste rubber

Recycling of EPDM Rubber Waste Powder by Activation with liquid Polymers

The recycling of ethylene-propylenediene- rubber (EPDM) waste was realized by activation of EPDM rubber waste particles surface with liquid EPDM polymers (LP) of low molecular weight. The optimal ratio of the waste EPDM rubber to LP was investigated whit regards to the original EPDM properties. more...

February 17. 2014 - Research news

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Fall Rubber Colloquium

Impressions from German Fall Rubber Colloquium 2012


November 20. 2012 - News