Composites

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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

Daniel Willenborg

Dämpfungs- und Isolationeigenschaften

Schwingungsfortsetzung und Dämpfung in Elastomer – Stahlgrenzflächen von Federn

A rubber-buffer-pendulum and an impulse-hammer-pendulum are bulit to investigate damping and isolation properites of different rubber-buffers. It can be summarized that soft rubber-buffers show the best isolation and damping properties. Hard rubber-buffers show the largest mechanical impedance and thereby are most resistant against mechanical loading. Hard rubber-buffers show poor damping and isolation properties. Therefore there […] more...

June 9. 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

Riyajan_Unbenannt

Smart Hydrogel

Physical Properties of smart maleated Poly(vinyl alcohol) –g-Poly (N-isopropylacrylamide) and natural Rubber Latex

The objective of this work was to analyze the physical properties of smart polymer from a maleated poly (vinyl alcohol) (PVAM) graft copolymer with poly-N-isopropylacrylamide (PNIPAM) (PVAM-g-PNIPAM) and natural rubber (NR) latex in green route. The mechanical properties of  the swollen hydrogel was enhanced by the addition the NR latex.  The PVAM-g-PNIPAM and PVAM-g-PNIPAM/NR hydrogel […] more...

April 25. 2017 - Research news

Das kautschukmodifizierte und faserverstärkte Polyamid zeichnet sich durch eine herausragende Charpy-Kerbschlagzähigkeit bei Kälte aus. Bildquelle: Lanxess

Rubber modification increases notch impact resistance

Rubber modification increases notch impact resistance

Lanxess developed Durethan BKV 235 H2.0 XCP specifically for oil pans that have to offer high resistance to stone impact and the underbody hitting the ground, and that are not otherwise protected by sheet metal or other cover materials. The polyamide is rubber-modified and reinforced with 35 percent special short glass fibers. more...

March 3. 2017 - Article

Compounds

K 2016: For stringent safety demands

Biesterfeld, Hamburg, will showcase Cabot`s newly launched compounds and concentrates at K 2016. The increased requirements for explosion protection in industrial production plants along with more stringent safety demands in the supply chain, as for example in the automotive industry, call for intelligent product solutions. more...

October 5. 2016 - Product Review

Kumar_Giese_

Nanoized Additives

Influence of Nanographite Surface Area on mechanical Reinforcement of Nanocomposites based on Poly(styrene-co-butadiene)

It was studied the effect of surface area (s.a.) of nanosized graphites on dynamic-mechanical and tensile properties of nanocomposites based on poly (styrene-co-butadiene) as the polymer matrix. Nanographite with very high s.a. (>800 m 2 /g) was compared with graphites with low s.a. (<40 m 2 /g). All nanographites had remarkable in plane crystallinity and […] more...

September 6. 2016 - Research news

Faktoren, die die Lebensdauer einer LED beeinflussen. Bildquelle: Osram

Anforderungen an Silikonhersteller und ihre Rohstoffe für die Halbleiterproduktion

Silikon für LEDs

Die Leuchtdioden (LED)-Technologie hat sich seit der Erfindung der weißen LED in den 80er/90er Jahren kontinuierlich weiterentwickelt, was in der Allgemein und der Automobilbeleuchtung besonders ersichtlich ist. LEDs sind auf Grund ihrer Größe, Kompaktheit, langen Lebensdauer und exzellenten Farbwiedergabe deutlich im Vorteil gegenüber traditionellen Lichttechnologien, was ihnen den Markt für immer mehr Einsatzgebiete ebnet. Grundsätzlich […] more...

June 21. 2016 - Article

Tire Technology Expo 2016: Meeting Point for the Tire Industry Source: Fotolia.com

Tire Technology Expo 2016

Tire Technology Expo 2016 – Meeting Point of the Tire Industry

Now in its sixteenth year, Tire Technology Expo is one of the world‘s most important tire manufacturing technology exhibition and conference. It offers the visitor a technology showcase, with exhibits of equipment and materials covering the complete spectrum of the tire manufacturing process. With an overall increase of nearly 25 percent in the exhibits area and more exhibitors than ever before Exhibition this year will deliver more of everything, announced the organizers. more...

February 5. 2016 - Article

Rubber Analytic

Tire Technology Expo 2016: A new Quality Control Concept for Black Rubber Compounds

Rhenowave, the inline analytics system developed by Lanxess Rhein Chemie Additives business unit and presented at previous Tire Technology conferences, has entered a new stage. This new quality control concept for black compounds was integrated into the production lines for Rhenoshape bladders in Rhein Chemie Additives’ plant at Porto Feliz, Brazil. more...

February 4. 2016 - Product Review

Mold Cleaning

Tire Technology Expo 2016: Dry Ice Cleaning Using Microparticles

Cold Jet will be presenting a new standard for tire mould cleaning; the Cold Jet Tire edition with new ‘Dry Ice MicroParticles’ technology. The company develops enhanced cleaning solutions based on customers’ manufacturing requirements. Without the restrictions of Dry Ice media (Block, Pellets, Nuggets), Cold Jet’s patented Dry Ice Micro-Particle-technology in combination with its Sure-Flow-technology […] more...

January 29. 2016 - Product Review

TESTING AND MEASURING

Influence of the Carbon-Silica Reinforcing Filler, Obtained via Pyrolysis of Waste “Green” Tyres on the Properties of EPDM Based Composites

The paper reports on the effect that the solid product from pyrolysis-cum-water vapour of waste green tyres (SiO2D), has upon the properties of EPDM based composites. The results have shown that in the course of pyrolysis the silanol groups over the surface of silica used as filler of the rubber vulcanizates subjected to pyrolysis are preserved in the final product of that process. more...

June 19. 2015 - Research news

Statements on DKT/IRC 2015

How do you see the economic potential of the rubber industry in the international competition? Will DKT / IRC 2015 set decisive impulses at the economic side?

Statements from: Philipp H. Junge, Head of Business Line Rubber Additives Business, Lanxess Rhein Chemie Additives Business; Herman Dikland, Head of Business Line NBR / HNBR, Lanxess High Performance Elastomers business unit and Giorgio Cabrini, Commercial Director and Board Member, Mesgo more...

June 16. 2015 - News

Rubber

Physical Properties of green Composite: Low grade natural Rubber/ Cassava Starch/ Palm Fiber

The green composite was made from low grade natural rubber (LNR), cassava starch (CSt) and palm fiber by using two-roll mill and compression molding. Before adding palm fiber, the elongation at break of LNR/CSt blend was improved as a function of CSt content due to plasticizer of CSt. more...

March 13. 2015 - Research news

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