Rubber

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Riyajan_

Absorbtion of of Mg and Pb

PH-sensitive Absorbent: Anionic Polyacryamide/Cassava Starch Hydrogels containing Natural Rubber for Lead and Magnesium removal from aqueous Solution

The novel absorbent from polyacrylamide (PAM), cassava starch and natural rubber (NR) by microwave assistance were produced to remove lead ion and magnesium ion in aqueous solution. The absorption of Mg2+ and Pb2+ of the novel absorbent increases as function of sample weight due to high site group or carboxylic group of absorbent. The highest […] more...

December 4. 2017 - Research news

Klüppel_

Verschleiß von EPDM-Walzen

Influence of thermal Aging on mechanical and tribological Properties of Roller Compounds based on EPDM

Due to mechanical, thermal and chemical impacts, elastomer covered rollers used in plastic-sheets- and printing industry show strong aging and wear. Therefore, elastomer rollers need to be exchanged and newly grinded or covered quite often. This study focuses on the influence of thermal aging on mechanical and tribological properties of roller compounds based on EPDM, […] more...

November 29. 2017 - Research news

Kohjiya_

Review

Crystallization of Natural Rubber: Its unique Feature

Crystallization of natural rubber (NR) has been uniquely complicated. This review is to disentangle the complications. Low-temperature crystallization (LTC) is a difficulty when using NR during winter in the early 19th century, overcome by vulcanization. In 1925, strain-induced crystallization (SIC) was firstly reported, but it has remained obscure for long till the advent of time-resolved […] more...

October 9. 2017 - Research news

Jorge Nogueira has take over as Chief Executive Officer of rubber specialist Arlanxeo. (Bildquelle: Arlanxeo)

Leadership Change at Arlanxeo

Jorge Nogueira takes over as Chief Executive Officer from Jan Paul de Vries

Jorge Nogueira has taken over as Chief Executive Officer of rubber specialist Arlanxeo with effect from September 9, 2017. The Argentinian succeeds Jan Paul de Vries, who is leaving the company to seek a new professional challenge. more...

September 11. 2017 - News

Azza_Ward_

Magnetic and dielectric Properties

PMMA Nanocomposites based on Laser fragmented Fe3O4 Nanoparticles

Laser photo fragmentation technique has been utilized as a versatile method to produce magnetite (Fe3O4) nanoparticles. It was found that, the diode laser beam with wavelength 808 nm is the most effective one, as it reduces the particle size of Fe3O4 to 5.5-26 nm. Casting technique was used to prepare nanocomposites based on polymethyl methacrylate […] more...

September 8. 2017 - Research Result

Hopmann_Lipski_

CO2 in Rubber

Optimisation of the Compound Quality of CO2-based Rubber Compounds

To improve the sustainability of rubber products, a new method was developed where CO2 is built into the polymer chain of rubber polymers. With this method it is possible to reduce the CO2-footprint by using a production method for rubber that needs fewer resources and by replacing a significant amount of crude oil by using […] more...

September 6. 2017 - Research news

Amornsakchai_

Stress-Strain Curves of BR, NBR and SBR

Synchrotron WAXS Studies of stretched Natural and Synthetic Rubber Networks showing an Upturn in Stress-Strain Curves*

Natural rubber (NR) displays very distinct stress-strain curve with an upturn in the stress at high elongations while most synthetic rubbers do not. This behavior has been associated with strain-induced crystallization. Here we show that three non-crystallizing weak synthetic rubbers, i.e. BR, NBR and SBR, could be reinforced in such a way that their stress-strain […] more...

September 1. 2017 - Research news

Wiss_4

Interaction between the hydroxyl and siloxane groups

Epoxidized Natural Rubber/ Modified Sepiolite Composites

Sepiolite reinforced Epoxidized Natural Rubber (ENR) composites were prepared by incorporation different loadings of sepiolite. Curing characteristics and mechanical properties were improved. more...

August 4. 2017 - Research news

Wiss_5

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

Das Dosiersystem ist von allen Seiten zugänglich und erfordert dadurch besonders wenig Platz und Zeit beim Fasswechsel. Zugleich schließt die auf dem Touchscreen angezeigte Schritt-für-Schritt-Anleitung Fehlbedienungen jetzt nahezu aus. Bildquelle: Elmet

Dosiertechnik für die Verarbeitung von Flüssigsilikon

Dosing system increases convenience and reliability in the injection molding of LSR

Auf der K 2016 stellte Elmet , Systemlieferant für den Bereich der Spritzgießverarbeitung von Zweikomponenten-Flüssigsilikonkautschuken (LSR), erstmals sein neues Mehrkomponenten-Dosiersystem vor. Die Anlage ist besonders leicht zu bedienen und von allen Seiten zugänglich für einen sicheren und komfortablen Fasswechsel. more...

May 18. 2017 - Article

Khalaf_

EPDM blend for Profiles

Elaboration of Rubber Profiles for Automotive-industry

EPDM is extensively used in automotive applications and is favored to superior heat resistance, ozone resistance and weathering resistance. This study aims to elaborate rubber profiles for car windows and doors based on EPDM and EPDM/LLDPE blend formulations. Different prepared rubber compounds and vulcanizates were evaluated by determining the rheometric characteristics and physico-mechanical properties. The […] more...

May 8. 2017 - Research news

Sae-oui_

Treating of NR Latex

Effect of Protein Crosslinking by Maillard Reaction on Natural Rubber Properties

Maillard crosslinking of proteins in natural rubber (NR) was carried out by treating fresh NR latex with various amounts of the Maillard reagents, i.e., formaldehyde (HCHO) and glutaraldehyde (C5H8O2). Attenuated total reflectance infrared spectroscopy revealed the occurrence of protein crosslinking in the treated NR. The treated NR contained higher protein content leading to not only […] more...

May 5. 2017 - Research news

Gomaa_Aly

PALS

Free Volumes and their Distribution in SiR/EPDM Rubber Blends probed by Positron Annihilation Lifetime Technique

The nanoscale free-volume holes sizes, fractions and their size distributions in silicone rubber (SiR), ethylene propylene diene rubber (EPDM) and their blend (SiR/EPDM) are characterized by positron annihilation lifetime spectroscopy (PALS). The results show that EPDM has an estimated smaller free-volume hole size of 193.4 Å3  with a fraction 9.10 % as compared to the corresponding […] more...

May 2. 2017 - Research news

Samy

Friction and Wear Properties

Tribological Performance for Polyester filled by recycled Rubber

The aim of this work is to study the friction and wear of polyester as flooring materials filled by recycled rubber. The test rig, used in the experiments was top scratching tester equipped with an indenter to produce a scratch on a flat surface with a single pass. The tested material is polyester filled by […] more...

April 10. 2017 - Research news

Rozik_

Waste Carbon as Additive

Mechanical and electrical Properties of Acrylonitrile Butadiene Rubber filled with Waste Carbon

Waste carbon is widely used in a variety of industrial applications which include separation / purification of liquids and gases, removal of toxic substances from waste water, as catalysts and catalyst support. Waste carbon composites could also endure wide thermal ranges, making them valuable in thermo-mechanical applications such as the automotive industry. From carbon we […] more...

April 10. 2017 - Research news

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